cleanup: remove partial tutorial

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John McCardle 2025-11-26 04:53:31 -05:00
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# McRogueFace Tutorial Parts 6-8: Implementation Plan
**Date**: Monday, July 28, 2025
**Target Delivery**: Tuesday, July 29, 2025
## Executive Summary
This document outlines the implementation plan for Parts 6-8 of the McRogueFace roguelike tutorial, adapting the libtcod Python tutorial to McRogueFace's architecture. The key discovery is that Python classes can successfully inherit from `mcrfpy.Entity` and store custom attributes, enabling a clean, Pythonic implementation.
## Key Architectural Insights
### Entity Inheritance Works!
```python
class GameEntity(mcrfpy.Entity):
def __init__(self, x, y, **kwargs):
super().__init__(x=x, y=y, **kwargs)
# Custom attributes work perfectly!
self.hp = 10
self.inventory = []
self.any_attribute = "works"
```
This completely changes our approach from wrapper patterns to direct inheritance.
---
## Part 6: Doing (and Taking) Some Damage
### Overview
Implement a combat system with HP tracking, damage calculation, and death mechanics using entity inheritance.
### Core Components
#### 1. CombatEntity Base Class
```python
class CombatEntity(mcrfpy.Entity):
"""Base class for entities that can fight and take damage"""
def __init__(self, x, y, hp=10, defense=0, power=1, **kwargs):
super().__init__(x=x, y=y, **kwargs)
# Combat stats as direct attributes
self.hp = hp
self.max_hp = hp
self.defense = defense
self.power = power
self.is_alive = True
self.blocks_movement = True
def calculate_damage(self, attacker):
"""Simple damage formula: power - defense"""
return max(0, attacker.power - self.defense)
def take_damage(self, damage, attacker=None):
"""Apply damage and handle death"""
self.hp = max(0, self.hp - damage)
if self.hp == 0 and self.is_alive:
self.is_alive = False
self.on_death(attacker)
def on_death(self, killer=None):
"""Handle death - override in subclasses"""
self.sprite_index = self.sprite_index + 180 # Corpse offset
self.blocks_movement = False
```
#### 2. Entity Types
```python
class PlayerEntity(CombatEntity):
"""Player: HP=30, Defense=2, Power=5"""
def __init__(self, x, y, **kwargs):
kwargs['sprite_index'] = 64 # Hero sprite
super().__init__(x=x, y=y, hp=30, defense=2, power=5, **kwargs)
self.entity_type = "player"
class OrcEntity(CombatEntity):
"""Orc: HP=10, Defense=0, Power=3"""
def __init__(self, x, y, **kwargs):
kwargs['sprite_index'] = 65 # Orc sprite
super().__init__(x=x, y=y, hp=10, defense=0, power=3, **kwargs)
self.entity_type = "orc"
class TrollEntity(CombatEntity):
"""Troll: HP=16, Defense=1, Power=4"""
def __init__(self, x, y, **kwargs):
kwargs['sprite_index'] = 66 # Troll sprite
super().__init__(x=x, y=y, hp=16, defense=1, power=4, **kwargs)
self.entity_type = "troll"
```
#### 3. Combat Integration
- Extend `on_bump()` from Part 5 to include combat
- Add attack animations (quick bump toward target)
- Console messages initially, UI messages in Part 7
- Death changes sprite and removes blocking
### Key Differences from Original Tutorial
- No Fighter component - stats are direct attributes
- No AI component - behavior in entity methods
- Integrated animations for visual feedback
- Simpler architecture overall
---
## Part 7: Creating the Interface
### Overview
Add visual UI elements including health bars, message logs, and colored feedback for combat events.
### Core Components
#### 1. Health Bar
```python
class HealthBar:
"""Health bar that reads entity HP directly"""
def __init__(self, entity, pos=(10, 740), size=(200, 20)):
self.entity = entity # Direct reference!
# Background (dark red)
self.bg = mcrfpy.Frame(pos=pos, size=size)
self.bg.fill_color = mcrfpy.Color(64, 16, 16)
# Foreground (green)
self.fg = mcrfpy.Frame(pos=pos, size=size)
self.fg.fill_color = mcrfpy.Color(0, 96, 0)
# Text overlay
self.text = mcrfpy.Caption(
pos=(pos[0] + 5, pos[1] + 2),
text=f"HP: {entity.hp}/{entity.max_hp}"
)
def update(self):
"""Update based on entity's current HP"""
ratio = self.entity.hp / self.entity.max_hp
self.fg.w = int(self.bg.w * ratio)
self.text.text = f"HP: {self.entity.hp}/{self.entity.max_hp}"
# Color changes at low health
if ratio < 0.25:
self.fg.fill_color = mcrfpy.Color(196, 16, 16) # Red
elif ratio < 0.5:
self.fg.fill_color = mcrfpy.Color(196, 196, 16) # Yellow
```
#### 2. Message Log
```python
class MessageLog:
"""Scrolling message log for combat feedback"""
def __init__(self, pos=(10, 600), size=(400, 120), max_messages=6):
self.frame = mcrfpy.Frame(pos=pos, size=size)
self.messages = [] # List of (text, color) tuples
self.captions = [] # Pre-allocated Caption pool
def add_message(self, text, color=None):
"""Add message with optional color"""
# Handle duplicate detection (x2, x3, etc.)
# Update caption display
```
#### 3. Color System
```python
class Colors:
# Combat colors
PLAYER_ATTACK = mcrfpy.Color(224, 224, 224)
ENEMY_ATTACK = mcrfpy.Color(255, 192, 192)
PLAYER_DEATH = mcrfpy.Color(255, 48, 48)
ENEMY_DEATH = mcrfpy.Color(255, 160, 48)
HEALTH_RECOVERED = mcrfpy.Color(0, 255, 0)
```
### UI Layout
- Health bar at bottom of screen
- Message log above health bar
- Direct binding to entity attributes
- Real-time updates during gameplay
---
## Part 8: Items and Inventory
### Overview
Implement items as entities, inventory management, and a hotbar-style UI for item usage.
### Core Components
#### 1. Item Entities
```python
class ItemEntity(mcrfpy.Entity):
"""Base class for pickupable items"""
def __init__(self, x, y, name, sprite, **kwargs):
kwargs['sprite_index'] = sprite
super().__init__(x=x, y=y, **kwargs)
self.item_name = name
self.blocks_movement = False
self.item_type = "generic"
class HealingPotion(ItemEntity):
"""Consumable healing item"""
def __init__(self, x, y, healing_amount=4):
super().__init__(x, y, "Healing Potion", sprite=33)
self.healing_amount = healing_amount
self.item_type = "consumable"
def use(self, user):
"""Use the potion - returns (success, message)"""
if hasattr(user, 'hp'):
healed = min(self.healing_amount, user.max_hp - user.hp)
if healed > 0:
user.hp += healed
return True, f"You heal {healed} HP!"
```
#### 2. Inventory System
```python
class InventoryMixin:
"""Mixin for entities with inventory"""
def __init__(self, *args, capacity=10, **kwargs):
super().__init__(*args, **kwargs)
self.inventory = []
self.inventory_capacity = capacity
def pickup_item(self, item):
"""Pick up an item entity"""
if len(self.inventory) >= self.inventory_capacity:
return False, "Inventory full!"
self.inventory.append(item)
item.die() # Remove from grid
return True, f"Picked up {item.item_name}."
```
#### 3. Inventory UI
```python
class InventoryDisplay:
"""Hotbar-style inventory display"""
def __init__(self, entity, pos=(200, 700), slots=10):
# Create slot frames and sprites
# Number keys 1-9, 0 for slots
# Highlight selected slot
# Update based on entity.inventory
```
### Key Features
- Items exist as entities on the grid
- Direct inventory attribute on player
- Hotkey-based usage (1-9, 0)
- Visual hotbar display
- Item effects (healing, future: damage boost, etc.)
---
## Implementation Timeline
### Tuesday Morning (Priority 1: Core Systems)
1. **8:00-9:30**: Implement CombatEntity and entity types
2. **9:30-10:30**: Add combat to bump interactions
3. **10:30-11:30**: Basic health display (text or simple bar)
4. **11:30-12:00**: ItemEntity and pickup system
### Tuesday Afternoon (Priority 2: Integration)
1. **1:00-2:00**: Message log implementation
2. **2:00-3:00**: Full health bar with colors
3. **3:00-4:00**: Inventory UI (hotbar)
4. **4:00-5:00**: Testing and bug fixes
### Tuesday Evening (Priority 3: Polish)
1. **5:00-6:00**: Combat animations and effects
2. **6:00-7:00**: Sound integration (use CoS splat sounds)
3. **7:00-8:00**: Additional item types
4. **8:00-9:00**: Documentation and cleanup
---
## Testing Strategy
### Automated Tests
```python
# tests/test_part6_combat.py
- Test damage calculation
- Test death mechanics
- Test combat messages
# tests/test_part7_ui.py
- Test health bar updates
- Test message log scrolling
- Test color system
# tests/test_part8_inventory.py
- Test item pickup/drop
- Test inventory capacity
- Test item usage
```
### Visual Tests
- Screenshot combat states
- Verify UI element positioning
- Check animation smoothness
---
## File Structure
```
roguelike_tutorial/
├── part_6.py # Combat implementation
├── part_7.py # UI enhancements
├── part_8.py # Inventory system
├── combat.py # Shared combat utilities
├── ui_components.py # Reusable UI classes
├── colors.py # Color definitions
└── items.py # Item definitions
```
---
## Risk Mitigation
### Potential Issues
1. **Performance**: Many UI updates per frame
- Solution: Update only on state changes
2. **Entity Collection Bugs**: Known segfault issues
- Solution: Use index-based access when needed
3. **Animation Timing**: Complex with turn-based combat
- Solution: Queue animations, process sequentially
### Fallback Options
1. Start with console messages, add UI later
2. Simple health numbers before bars
3. Basic inventory list before hotbar
---
## Success Criteria
### Part 6
- [x] Entities can have HP and take damage
- [x] Death changes sprite and walkability
- [x] Combat messages appear
- [x] Player can kill enemies
### Part 7
- [x] Health bar shows current/max HP
- [x] Messages appear in scrolling log
- [x] Colors differentiate message types
- [x] UI updates in real-time
### Part 8
- [x] Items can be picked up
- [x] Inventory has capacity limit
- [x] Items can be used/consumed
- [x] Hotbar shows inventory items
---
## Notes for Implementation
1. **Keep It Simple**: Start with minimum viable features
2. **Build Incrementally**: Test each component before integrating
3. **Use Part 5**: Leverage existing entity interaction system
4. **Document Well**: Clear comments for tutorial purposes
5. **Visual Feedback**: McRogueFace excels at animations - use them!
---
## Comparison with Original Tutorial
### What We Keep
- Same combat formula (power - defense)
- Same entity stats (Player, Orc, Troll)
- Same item types (healing potions to start)
- Same UI elements (health bar, message log)
### What's Different
- Direct inheritance instead of components
- Integrated animations and visual effects
- Hotbar inventory instead of menu
- Built-in sound support
- Cleaner architecture overall
### What's Better
- More Pythonic with real inheritance
- Better visual feedback
- Smoother animations
- Simpler to understand
- Leverages McRogueFace's strengths
---
## Conclusion
This implementation plan leverages McRogueFace's support for Python entity inheritance to create a clean, intuitive tutorial series. By using direct attributes instead of components, we simplify the architecture while maintaining all the functionality of the original tutorial. The addition of animations, sound effects, and rich UI elements showcases McRogueFace's capabilities while keeping the code beginner-friendly.
The Tuesday delivery timeline is aggressive but achievable by focusing on core functionality first, then integration, then polish. The modular design allows for easy testing and incremental development.

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# Simple TCOD Tutorial Part 1 - Drawing the player sprite and moving it around
This is Part 1 of the Simple TCOD Tutorial adapted for McRogueFace. It implements the sophisticated, refactored TCOD tutorial approach with professional architecture from day one.
## Running the Code
From your tutorial build directory (separate from the engine development build):
```bash
cd simple_tcod_tutorial/build
./mcrogueface scripts/main.py
```
Note: The `scripts` folder should be a symlink to your `simple_tcod_tutorial` directory.
## Architecture Overview
### Package Structure
```
simple_tcod_tutorial/
├── main.py # Entry point - ties everything together
├── game/ # Game package with proper separation
│ ├── __init__.py
│ ├── entity.py # Entity class - all game objects
│ ├── engine.py # Engine class - game coordinator
│ ├── actions.py # Action classes - command pattern
│ └── input_handlers.py # Input handling - extensible system
```
### Key Concepts Demonstrated
1. **Entity-Centric Design**
- Everything in the game is an Entity
- Entities have position, appearance, and behavior
- Designed to scale to items, NPCs, and effects
2. **Action-Based Command Pattern**
- All player actions are Action objects
- Separates input from game logic
- Enables undo, replay, and AI using same system
3. **Professional Input Handling**
- BaseEventHandler for different input contexts
- Complete movement key support (arrows, numpad, vi, WASD)
- Ready for menus, targeting, and other modes
4. **Engine as Coordinator**
- Manages game state without becoming a god object
- Delegates to appropriate systems
- Clean boundaries between systems
5. **Type Safety**
- Full type annotations throughout
- Forward references with TYPE_CHECKING
- Modern Python best practices
## Differences from Vanilla McRogueFace Tutorial
### Removed
- Animation system (instant movement instead)
- Complex UI elements (focus on core mechanics)
- Real-time features (pure turn-based)
- Visual effects (camera following, smooth scrolling)
- Entity color property (sprites handle appearance)
### Added
- Complete movement key support
- Professional architecture patterns
- Proper package structure
- Type annotations
- Action-based design
- Extensible handler system
- Proper exit handling (Escape/Q actually quits)
### Adapted
- Grid rendering with proper centering
- Simplified entity system (position + sprite ID)
- Using simple_tutorial.png sprite sheet (12 sprites)
- Floor tiles using ground sprites (indices 1 and 2)
- Direct sprite indices instead of character mapping
## Learning Objectives
Students completing Part 1 will understand:
- How to structure a game project professionally
- The value of entity-centric design
- Command pattern for game actions
- Input handling that scales to complex UIs
- Type-driven development in Python
- Architecture that grows without refactoring
## What's Next
Part 2 will add:
- The GameMap class for world representation
- Tile-based movement and collision
- Multiple entities in the world
- Basic terrain (walls and floors)
- Rendering order for entities
The architecture we've built in Part 1 makes these additions natural and painless, demonstrating the value of starting with good patterns.

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# Simple TCOD Tutorial Part 2 - The generic Entity, the map, and walls
This is Part 2 of the Simple TCOD Tutorial adapted for McRogueFace. Building on Part 1's foundation, we now introduce proper world representation and collision detection.
## Running the Code
From your tutorial build directory:
```bash
cd simple_tcod_tutorial/build
./mcrogueface scripts/main.py
```
## New Architecture Components
### GameMap Class (`game/game_map.py`)
The GameMap inherits from `mcrfpy.Grid` and adds:
- **Tile Management**: Uses Grid's built-in point system with walkable property
- **Entity Container**: Manages entity lifecycle with `add_entity()` and `remove_entity()`
- **Spatial Queries**: `get_entities_at()`, `get_blocking_entity_at()`, `is_walkable()`
- **Direct Integration**: Leverages Grid's walkable and tilesprite properties
### Tiles System (`game/tiles.py`)
- **Simple Tile Types**: Using NamedTuple for clean tile definitions
- **Tile Types**: Floor (walkable) and Wall (blocks movement)
- **Grid Integration**: Maps directly to Grid point properties
- **Future-Ready**: Includes transparency for FOV system in Part 4
### Entity Placement System
- **Bidirectional References**: Entities know their map, maps track their entities
- **`place()` Method**: Handles all bookkeeping when entities move between maps
- **Lifecycle Management**: Automatic cleanup when entities leave maps
## Key Changes from Part 1
### Engine Updates
- Replaced direct grid management with GameMap
- Engine creates and configures the GameMap
- Player is placed using the new `place()` method
### Movement System
- MovementAction now checks `is_walkable()` before moving
- Collision detection for both walls and blocking entities
- Clean separation between validation and execution
### Visual Changes
- Walls rendered as trees (sprite index 3)
- Border of walls around the map edge
- Floor tiles still use alternating pattern
## Architectural Benefits
### McRogueFace Integration
- **No NumPy Dependency**: Uses Grid's native tile management
- **Direct Walkability**: Grid points have built-in walkable property
- **Unified System**: Visual and logical tile data in one place
### Separation of Concerns
- **GameMap**: Knows about tiles and spatial relationships
- **Engine**: Coordinates high-level game state
- **Entity**: Manages its own lifecycle through `place()`
- **Actions**: Validate their own preconditions
### Extensibility
- Easy to add new tile types
- Simple to implement different map generation
- Ready for FOV, pathfinding, and complex queries
- Entity system scales to items and NPCs
### Type Safety
- TYPE_CHECKING imports prevent circular dependencies
- Proper type hints throughout
- Forward references maintain clean architecture
## What's Next
Part 3 will add:
- Procedural dungeon generation
- Room and corridor creation
- Multiple entities in the world
- Foundation for enemy placement
The architecture established in Part 2 makes these additions straightforward, demonstrating the value of proper design from the beginning.

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# Simple TCOD Tutorial Part 3 - Generating a dungeon
This is Part 3 of the Simple TCOD Tutorial adapted for McRogueFace. We now add procedural dungeon generation to create interesting, playable levels.
## Running the Code
From your tutorial build directory:
```bash
cd simple_tcod_tutorial/build
./mcrogueface scripts/main.py
```
## New Features
### Procedural Generation Module (`game/procgen.py`)
This dedicated module demonstrates separation of concerns - dungeon generation logic is kept separate from the game map implementation.
#### RectangularRoom Class
- **Clean Abstraction**: Represents a room with position and dimensions
- **Utility Properties**:
- `center` - Returns room center for connections
- `inner` - Returns slice objects for efficient carving
- **Intersection Detection**: `intersects()` method prevents overlapping rooms
#### Tunnel Generation
- **L-Shaped Corridors**: Simple but effective connection method
- **Iterator Pattern**: `tunnel_between()` yields coordinates efficiently
- **Random Variation**: 50/50 chance of horizontal-first vs vertical-first
#### Dungeon Generation Algorithm
```python
def generate_dungeon(max_rooms, room_min_size, room_max_size,
map_width, map_height, engine) -> GameMap:
```
- **Simple Algorithm**: Try to place random rooms, reject overlaps
- **Automatic Connection**: Each room connects to the previous one
- **Player Placement**: First room contains the player
- **Entity-Centric**: Uses `player.place()` for proper lifecycle
## Architecture Benefits
### Modular Design
- Generation logic separate from GameMap
- Easy to swap algorithms later
- Room class reusable for other features
### Forward Thinking
- Engine parameter anticipates entity spawning
- Room list available for future features
- Iterator-based tunnel generation is memory efficient
### Clean Integration
- Works seamlessly with existing entity placement
- Respects GameMap's tile management
- No special cases or hacks needed
## Visual Changes
- Map size increased to 80x45 for better dungeons
- Zoom reduced to 1.0 to see more of the map
- Random room layouts each time
- Connected rooms and corridors
## Algorithm Details
The generation follows these steps:
1. Start with a map filled with walls
2. Try to place up to `max_rooms` rooms
3. For each room attempt:
- Generate random size and position
- Check for intersections with existing rooms
- If valid, carve out the room
- Connect to previous room (if any)
4. Place player in center of first room
This simple algorithm creates playable dungeons while being easy to understand and modify.
## What's Next
Part 4 will add:
- Field of View (FOV) system
- Explored vs unexplored areas
- Light and dark tile rendering
- Torch radius around player
The modular dungeon generation makes it easy to add these visual features without touching the generation code.

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# Part 4: Field of View and Exploration
## Overview
Part 4 introduces the Field of View (FOV) system, transforming our fully-visible dungeon into an atmospheric exploration experience. We leverage McRogueFace's built-in FOV capabilities and perspective system for efficient rendering.
## What's New in Part 4
### Field of View System
- **FOV Calculation**: Using `Grid.compute_fov()` with configurable radius
- **Perspective System**: Grid tracks which entity is the viewer
- **Visibility States**: Unexplored (black), explored (dark), visible (lit)
- **Automatic Updates**: FOV recalculates on player movement
### Implementation Details
#### FOV with McRogueFace's Grid
Unlike TCOD which uses numpy arrays for visibility tracking, McRogueFace's Grid has built-in FOV support:
```python
# In GameMap.update_fov()
self.compute_fov(viewer_x, viewer_y, radius, light_walls=True, algorithm=mcrfpy.FOV_BASIC)
```
The Grid automatically:
- Tracks which tiles have been explored
- Applies appropriate color overlays (shroud, dark, light)
- Updates entity visibility based on FOV
#### Perspective System
McRogueFace uses a perspective-based rendering approach:
```python
# Set the viewer
self.game_map.perspective = self.player
# Grid automatically renders from this entity's viewpoint
```
This is more efficient than manually updating tile colors every turn.
#### Color Overlays
We define overlay colors but let the Grid handle application:
```python
# In tiles.py
SHROUD = mcrfpy.Color(0, 0, 0, 255) # Unexplored
DARK = mcrfpy.Color(100, 100, 150, 128) # Explored but not visible
LIGHT = mcrfpy.Color(255, 255, 255, 0) # Currently visible
```
### Key Differences from TCOD
| TCOD Approach | McRogueFace Approach |
|---------------|----------------------|
| `visible` and `explored` numpy arrays | Grid's built-in FOV state |
| Manual tile color switching | Automatic overlay system |
| `tcod.map.compute_fov()` | `Grid.compute_fov()` |
| Render conditionals for each tile | Perspective-based rendering |
### Movement and FOV Updates
The action system now updates FOV after player movement:
```python
# In MovementAction.perform()
if self.entity == engine.player:
engine.update_fov()
```
## Architecture Notes
### Why Grid Perspective?
The perspective system provides several benefits:
1. **Efficiency**: No per-tile color updates needed
2. **Flexibility**: Easy to switch viewpoints (for debugging or features)
3. **Automatic**: Grid handles all rendering details
4. **Clean**: Separates game logic from rendering concerns
### Entity Visibility
Entities automatically update their visibility state:
```python
# After FOV calculation
self.player.update_visibility()
```
This ensures entities are only rendered when visible to the current perspective.
## Files Modified
- `game/tiles.py`: Added FOV color overlay constants
- `game/game_map.py`: Added `update_fov()` method
- `game/engine.py`: Added FOV initialization and update method
- `game/actions.py`: Update FOV after player movement
- `main.py`: Updated part description
## What's Next
Part 5 will add enemies to our dungeon, introducing:
- Enemy entities with AI
- Combat system
- Turn-based gameplay
- Health and damage
The FOV system will make enemies appear and disappear as you explore, adding tension and strategy to the gameplay.
## Learning Points
1. **Leverage Framework Features**: Use McRogueFace's built-in systems rather than reimplementing
2. **Perspective-Based Design**: Think in terms of viewpoints, not global state
3. **Automatic Systems**: Let the framework handle rendering details
4. **Clean Integration**: FOV updates fit naturally into the action system
## Running Part 4
```bash
cd simple_tcod_tutorial/build
./mcrogueface scripts/main.py
```
You'll now see:
- Black unexplored areas
- Dark blue tint on previously seen areas
- Full brightness only in your field of view
- Smooth exploration as you move through the dungeon

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# Part 5: Placing Enemies and Fighting Them
## Overview
Part 5 brings our dungeon to life with enemies! We add rats and spiders that populate the rooms, implement a combat system with melee attacks, and handle entity death by turning creatures into gravestones.
## What's New in Part 5
### Actor System
- **Actor Class**: Extends Entity with combat stats (HP, defense, power)
- **Combat Properties**: Health tracking, damage calculation, alive status
- **Death Handling**: Entities become gravestones when killed
### Enemy Types
Using our sprite sheet, we have two enemy types:
- **Rat** (sprite 5): 10 HP, 0 defense, 3 power - Common enemy
- **Spider** (sprite 4): 16 HP, 1 defense, 4 power - Tougher enemy
### Combat System
#### Bump-to-Attack
When the player tries to move into an enemy:
```python
# In MovementAction.perform()
target = engine.game_map.get_blocking_entity_at(dest_x, dest_y)
if target:
if self.entity == engine.player:
from game.entity import Actor
if isinstance(target, Actor) and target != engine.player:
return MeleeAction(self.entity, self.dx, self.dy).perform(engine)
```
#### Damage Calculation
Simple formula with defense reduction:
```python
damage = attacker.power - target.defense
```
#### Death System
Dead entities become gravestones:
```python
def die(self) -> None:
"""Handle death by becoming a gravestone."""
self.sprite_index = 6 # Tombstone sprite
self.blocks_movement = False
self.name = f"Grave of {self.name}"
```
### Entity Factories
Factory functions create pre-configured entities:
```python
def rat(x: int, y: int, texture: mcrfpy.Texture) -> Actor:
return Actor(
x=x, y=y,
sprite_id=5, # Rat sprite
texture=texture,
name="Rat",
hp=10, defense=0, power=3,
)
```
### Dungeon Population
Enemies are placed randomly in rooms:
```python
def place_entities(room, dungeon, max_monsters, texture):
number_of_monsters = random.randint(0, max_monsters)
for _ in range(number_of_monsters):
x = random.randint(room.x1 + 1, room.x2 - 1)
y = random.randint(room.y1 + 1, room.y2 - 1)
if not any(entity.x == x and entity.y == y for entity in dungeon.entities):
# 80% rats, 20% spiders
if random.random() < 0.8:
monster = entity_factories.rat(x, y, texture)
else:
monster = entity_factories.spider(x, y, texture)
monster.place(x, y, dungeon)
```
## Key Implementation Details
### FOV and Enemy Visibility
Enemies are automatically shown/hidden by the FOV system:
```python
def update_fov(self) -> None:
# Update visibility for all entities
for entity in self.game_map.entities:
entity.update_visibility()
```
### Action System Extension
The action system now handles combat:
- **MovementAction**: Detects collision, triggers attack
- **MeleeAction**: New action for melee combat
- Actions remain decoupled from entity logic
### Gravestone System
Instead of removing dead entities:
- Sprite changes to tombstone (index 6)
- Name changes to "Grave of [Name]"
- No longer blocks movement
- Remains visible as dungeon decoration
## Architecture Notes
### Why Actor Extends Entity?
- Maintains entity hierarchy
- Combat stats only for creatures
- Future items/decorations won't have HP
- Clean separation of concerns
### Why Factory Functions?
- Centralized entity configuration
- Easy to add new enemy types
- Consistent stat management
- Type-safe entity creation
### Combat in Actions
Combat logic lives in actions, not entities:
- Entities store stats
- Actions perform combat
- Clean separation of data and behavior
- Extensible for future combat types
## Files Modified
- `game/entity.py`: Added Actor class with combat stats and death handling
- `game/entity_factories.py`: New module with entity creation functions
- `game/actions.py`: Added MeleeAction for combat
- `game/procgen.py`: Added enemy placement in rooms
- `game/engine.py`: Updated to use Actor type and handle all entity visibility
- `main.py`: Updated to use entity factories and Part 5 description
## What's Next
Part 6 will enhance the combat experience with:
- Health display UI
- Game over conditions
- Combat messages window
- More strategic combat mechanics
## Learning Points
1. **Entity Specialization**: Use inheritance to add features to specific entity types
2. **Factory Pattern**: Centralize object creation for consistency
3. **State Transformation**: Dead entities become decorations, not deletions
4. **Action Extensions**: Combat fits naturally into the action system
5. **Automatic Systems**: FOV handles entity visibility without special code
## Running Part 5
```bash
cd simple_tcod_tutorial/build
./mcrogueface scripts/main.py
```
You'll now encounter rats and spiders as you explore! Walk into them to attack. Dead enemies become gravestones that mark your battles.
## Sprite Adaptations
Following our sprite sheet (`sprite_sheet.md`), we made these thematic changes:
- Orcs → Rats (same stats, different sprite)
- Trolls → Spiders (same stats, different sprite)
- Corpses → Gravestones (all use same tombstone sprite)
The gameplay remains identical to the TCOD tutorial, just with different visual theming.

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@ -1,187 +0,0 @@
# Part 6: Doing (and Taking) Damage
## Overview
Part 6 transforms our basic combat into a complete gameplay loop with visual feedback, enemy AI, and win/lose conditions. We add a health bar, message log, enemy AI that pursues the player, and proper game over handling.
## What's New in Part 6
### User Interface Components
#### Health Bar
A visual representation of the player's current health:
```python
class HealthBar:
def create_ui(self) -> List[mcrfpy.UIDrawable]:
# Dark red background
self.background = mcrfpy.Frame(pos=(x, y), size=(width, height))
self.background.fill_color = mcrfpy.Color(100, 0, 0, 255)
# Bright colored bar (green/yellow/red based on HP)
self.bar = mcrfpy.Frame(pos=(x, y), size=(width, height))
# Text overlay showing HP numbers
self.text = mcrfpy.Caption(pos=(x+5, y+2),
text=f"HP: {hp}/{max_hp}")
```
The bar changes color based on health percentage:
- Green (>60% health)
- Yellow (30-60% health)
- Red (<30% health)
#### Message Log
A scrolling combat log that replaces console print statements:
```python
class MessageLog:
def __init__(self, max_messages: int = 5):
self.messages: deque[str] = deque(maxlen=max_messages)
def add_message(self, message: str) -> None:
self.messages.append(message)
self.update_display()
```
Messages include:
- Combat actions ("Rat attacks Player for 3 hit points.")
- Death notifications ("Spider is dead!")
- Game state changes ("You have died! Press Escape to quit.")
### Enemy AI System
#### Basic AI Component
Enemies now actively pursue and attack the player:
```python
class BasicAI:
def take_turn(self, engine: Engine) -> None:
distance = max(abs(dx), abs(dy)) # Chebyshev distance
if distance <= 1:
# Adjacent: Attack!
MeleeAction(self.entity, attack_dx, attack_dy).perform(engine)
elif distance <= 6:
# Can see player: Move closer
MovementAction(self.entity, move_dx, move_dy).perform(engine)
```
#### Turn-Based System
After each player action, all enemies take their turn:
```python
def handle_enemy_turns(self) -> None:
for entity in self.game_map.entities:
if isinstance(entity, Actor) and entity.ai and entity.is_alive:
entity.ai.take_turn(self)
```
### Game Over Condition
When the player dies:
1. Game state flag is set (`engine.game_over = True`)
2. Player becomes a gravestone (sprite changes)
3. Input is restricted (only Escape works)
4. Death message appears in the message log
```python
def handle_player_death(self) -> None:
self.game_over = True
self.message_log.add_message("You have died! Press Escape to quit.")
```
## Architecture Improvements
### UI Module (`game/ui.py`)
Separates UI concerns from game logic:
- `MessageLog`: Manages combat messages
- `HealthBar`: Displays player health
- Clean interface for updating displays
### AI Module (`game/ai.py`)
Encapsulates enemy behavior:
- `BasicAI`: Simple pursue-and-attack behavior
- Extensible for different AI types
- Uses existing action system
### Turn Management
Player actions trigger enemy turns:
- Movement → Enemy turns
- Attack → Enemy turns
- Wait → Enemy turns
- Maintains turn-based feel
## Key Implementation Details
### UI Updates
Health bar updates occur:
- After player takes damage
- Automatically via `engine.update_ui()`
- Color changes based on HP percentage
### Message Flow
Combat messages follow this pattern:
1. Action generates message text
2. `engine.message_log.add_message(text)`
3. Message appears in UI Caption
4. Old messages scroll up
### AI Decision Making
Basic AI uses simple rules:
1. Check if player is adjacent → Attack
2. Check if player is visible (within 6 tiles) → Move toward
3. Otherwise → Do nothing
### Game State Management
The `game_over` flag prevents:
- Player movement
- Player attacks
- Player waiting
- But allows Escape to quit
## Files Modified
- `game/ui.py`: New module for UI components
- `game/ai.py`: New module for enemy AI
- `game/engine.py`: Added UI setup, enemy turns, game over handling
- `game/entity.py`: Added AI component to Actor
- `game/entity_factories.py`: Attached AI to enemies
- `game/actions.py`: Integrated message log, added enemy turn triggers
- `main.py`: Updated part description
## What's Next
Part 7 will expand the user interface further with:
- More detailed entity inspection
- Possibly inventory display
- Additional UI panels
- Mouse interaction
## Learning Points
1. **UI Separation**: Keep UI logic separate from game logic
2. **Component Systems**: AI as a component allows different behaviors
3. **Turn-Based Flow**: Player action → Enemy reactions creates tactical gameplay
4. **Visual Feedback**: Health bars and message logs improve player understanding
5. **State Management**: Game over flag controls available actions
## Running Part 6
```bash
cd simple_tcod_tutorial/build
./mcrogueface scripts/main.py
```
You'll now see:
- Health bar at the top showing your current HP
- Message log at the bottom showing combat events
- Enemies that chase you when you're nearby
- Enemies that attack when adjacent
- Death state when HP reaches 0
## Combat Strategy
With enemy AI active, combat becomes more tactical:
- Enemies pursue when they see you
- Fighting in corridors limits how many can attack
- Running away is sometimes the best option
- Health management becomes critical
The game now has a complete combat loop with clear win/lose conditions!

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@ -1,204 +0,0 @@
# Part 7: Creating the User Interface
## Overview
Part 7 significantly enhances the user interface, transforming our roguelike from a basic game into a more polished experience. We add mouse interaction, help displays, information panels, and better visual feedback systems.
## What's New in Part 7
### Mouse Interaction
#### Click-to-Inspect System
Since McRogueFace doesn't have mouse motion events, we use click events to show entity information:
```python
def grid_click_handler(pixel_x, pixel_y, button, state):
# Convert pixel coordinates to grid coordinates
grid_x = int(pixel_x / (self.tile_size * self.zoom))
grid_y = int(pixel_y / (self.tile_size * self.zoom))
# Update hover display for this position
self.update_mouse_hover(grid_x, grid_y)
```
Click displays show:
- Entity names
- Current HP for living creatures
- Multiple entities if stacked (e.g., "Grave of Rat")
#### Mouse Handler Registration
The click handler is registered as a local function to avoid issues with bound methods:
```python
# Use a local function instead of a bound method
self.game_map.click = grid_click_handler
```
### Help System
#### Toggle Help Display
Press `?`, `H`, or `F1` to show/hide help:
```python
class HelpDisplay:
def toggle(self) -> None:
self.visible = not self.visible
self.panel.frame.visible = self.visible
```
The help panel includes:
- Movement controls for all input methods
- Combat instructions
- Mouse usage tips
- Gameplay strategies
### Information Panels
#### Player Stats Panel
Always-visible panel showing:
- Player name
- Current/Max HP
- Power and Defense stats
- Current grid position
```python
class InfoPanel:
def create_ui(self, title: str) -> List[mcrfpy.Drawable]:
# Semi-transparent background frame
self.frame = mcrfpy.Frame(pos=(x, y), size=(width, height))
self.frame.fill_color = mcrfpy.Color(20, 20, 40, 200)
# Title and content captions as children
self.frame.children.append(self.title_caption)
self.frame.children.append(self.content_caption)
```
#### Reusable Panel System
The `InfoPanel` class provides:
- Titled panels with borders
- Semi-transparent backgrounds
- Easy content updates
- Consistent visual style
### Enhanced UI Components
#### MouseHoverDisplay Class
Manages tooltip-style hover information:
- Follows mouse position
- Shows/hides automatically
- Offset to avoid cursor overlap
- Multiple entity support
#### UI Module Organization
Clean separation of UI components:
- `MessageLog`: Combat messages
- `HealthBar`: HP visualization
- `MouseHoverDisplay`: Entity inspection
- `InfoPanel`: Generic information display
- `HelpDisplay`: Keyboard controls
## Architecture Improvements
### UI Composition
Using McRogueFace's parent-child system:
```python
# Add caption as child of frame
self.frame.children.append(self.text_caption)
```
Benefits:
- Automatic relative positioning
- Group visibility control
- Clean hierarchy
### Event Handler Extensions
Input handler now manages:
- Keyboard input (existing)
- Mouse motion (new)
- Mouse clicks (prepared for future)
- UI toggles (help display)
### Dynamic Content Updates
All UI elements support real-time updates:
```python
def update_stats_panel(self) -> None:
stats_text = f"""Name: {self.player.name}
HP: {self.player.hp}/{self.player.max_hp}
Power: {self.player.power}
Defense: {self.player.defense}"""
self.stats_panel.update_content(stats_text)
```
## Key Implementation Details
### Mouse Coordinate Conversion
Pixel to grid conversion:
```python
grid_x = int(x / (self.engine.tile_size * self.engine.zoom))
grid_y = int(y / (self.engine.tile_size * self.engine.zoom))
```
### Visibility Management
UI elements can be toggled:
- Help panel starts hidden
- Mouse hover hides when not over entities
- Panels can be shown/hidden dynamically
### Color and Transparency
UI uses semi-transparent overlays:
- Panel backgrounds: `Color(20, 20, 40, 200)`
- Hover tooltips: `Color(255, 255, 200, 255)`
- Borders and outlines for readability
## Files Modified
- `game/ui.py`: Added MouseHoverDisplay, InfoPanel, HelpDisplay classes
- `game/engine.py`: Integrated new UI components, mouse hover handling
- `game/input_handlers.py`: Added mouse motion handling, help toggle
- `main.py`: Registered mouse handlers, updated part description
## What's Next
Part 8 will add items and inventory:
- Collectible items (potions, equipment)
- Inventory management UI
- Item usage mechanics
- Equipment system
## Learning Points
1. **UI Composition**: Use parent-child relationships for complex UI
2. **Event Delegation**: Separate input handling from UI updates
3. **Information Layers**: Multiple UI systems can coexist (hover, panels, help)
4. **Visual Polish**: Small touches like transparency and borders improve UX
5. **Reusable Components**: Generic panels can be specialized for different uses
## Running Part 7
```bash
cd simple_tcod_tutorial/build
./mcrogueface scripts/main.py
```
New features to try:
- Click on entities to see their details
- Press ? or H to toggle help display
- Watch the stats panel update as you take damage
- See entity HP in hover tooltips
- Notice the visual polish in UI panels
## UI Design Principles
### Consistency
- All panels use similar visual style
- Consistent color scheme
- Uniform text sizing
### Non-Intrusive
- Semi-transparent panels don't block view
- Hover info appears near cursor
- Help can be toggled off
### Information Hierarchy
- Critical info (health) always visible
- Contextual info (hover) on demand
- Help info toggleable
The UI now provides a professional feel while maintaining the roguelike aesthetic!

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@ -1,297 +0,0 @@
# Part 8: Items and Inventory
## Overview
Part 8 transforms our roguelike into a proper loot-driven game by adding items that can be collected, managed, and used. We implement a flexible inventory system with capacity limits, create consumable items like healing potions, and build UI for inventory management.
## What's New in Part 8
### Parent-Child Entity Architecture
#### Flexible Entity Ownership
Entities now have parent containers, allowing them to exist in different contexts:
```python
class Entity(mcrfpy.Entity):
def __init__(self, parent: Optional[Union[GameMap, Inventory]] = None):
self.parent = parent
@property
def gamemap(self) -> Optional[GameMap]:
"""Get the GameMap through the parent chain"""
if isinstance(self.parent, Inventory):
return self.parent.gamemap
return self.parent
```
Benefits:
- Items can exist in the world or in inventories
- Clean ownership transfer when picking up/dropping
- Automatic visibility management
### Inventory System
#### Container-Based Design
The inventory acts like a specialized entity container:
```python
class Inventory:
def __init__(self, capacity: int):
self.capacity = capacity
self.items: List[Item] = []
self.parent: Optional[Actor] = None
def add_item(self, item: Item) -> None:
if len(self.items) >= self.capacity:
raise Impossible("Your inventory is full.")
# Transfer ownership
self.items.append(item)
item.parent = self
item.visible = False # Hide from map
```
Features:
- Capacity limits (26 items for letter selection)
- Clean item transfer between world and inventory
- Automatic visual management
### Item System
#### Item Entity Class
Items are entities with consumable components:
```python
class Item(Entity):
def __init__(self, consumable: Optional = None):
super().__init__(blocks_movement=False)
self.consumable = consumable
if consumable:
consumable.parent = self
```
#### Consumable Components
Modular system for item effects:
```python
class HealingConsumable(Consumable):
def activate(self, action: ItemAction) -> None:
if consumer.hp >= consumer.max_hp:
raise Impossible("You are already at full health.")
amount_recovered = min(self.amount, consumer.max_hp - consumer.hp)
consumer.hp += amount_recovered
self.consume() # Remove item after use
```
### Exception-Driven Feedback
#### Clean Error Handling
Using exceptions for user feedback:
```python
class Impossible(Exception):
"""Action cannot be performed"""
pass
class PickupAction(Action):
def perform(self, engine: Engine) -> None:
if not items_here:
raise Impossible("There is nothing here to pick up.")
try:
inventory.add_item(item)
engine.message_log.add_message(f"You picked up the {item.name}!")
except Impossible as e:
engine.message_log.add_message(str(e))
```
Benefits:
- Consistent error messaging
- Clean control flow
- Centralized feedback handling
### Inventory UI
#### Modal Inventory Screen
Interactive inventory management:
```python
class InventoryEventHandler(BaseEventHandler):
def create_ui(self) -> None:
# Semi-transparent background
self.background = mcrfpy.Frame(pos=(100, 100), size=(400, 400))
self.background.fill_color = mcrfpy.Color(0, 0, 0, 200)
# List items with letter keys
for i, item in enumerate(inventory.items):
item_caption = mcrfpy.Caption(
pos=(20, 80 + i * 20),
text=f"{chr(ord('a') + i)}) {item.name}"
)
```
Features:
- Letter-based selection (a-z)
- Separate handlers for use/drop
- ESC to cancel
- Visual feedback
### Enhanced Actions
#### Item Actions
New actions for item management:
```python
class PickupAction(Action):
"""Pick up items at current location"""
class ItemAction(Action):
"""Base for item usage actions"""
class DropAction(ItemAction):
"""Drop item from inventory"""
```
Each action:
- Self-validates
- Provides feedback
- Triggers enemy turns
## Architecture Improvements
### Component Relationships
Parent-based component system:
```python
# Components know their parent
consumable.parent = item
item.parent = inventory
inventory.parent = actor
actor.parent = gamemap
gamemap.engine = engine
```
Benefits:
- Access to game context from any component
- Clean ownership transfer
- Simplified entity lifecycle
### Input Handler States
Modal UI through handler switching:
```python
# Main game
engine.current_handler = MainGameEventHandler(engine)
# Open inventory
engine.current_handler = InventoryActivateHandler(engine)
# Back to game
engine.current_handler = MainGameEventHandler(engine)
```
### Entity Lifecycle Management
Proper creation and cleanup:
```python
# Item spawning
item = entity_factories.health_potion(x, y, texture)
item.place(x, y, dungeon)
# Pickup
inventory.add_item(item) # Removes from map
# Drop
inventory.drop(item) # Returns to map
# Death
actor.die() # Drops all items
```
## Key Implementation Details
### Visibility Management
Items hide/show based on container:
```python
def add_item(self, item):
item.visible = False # Hide when in inventory
def drop(self, item):
item.visible = True # Show when on map
```
### Inventory Capacity
Limited to alphabet keys:
```python
if len(inventory.items) >= 26:
raise Impossible("Your inventory is full.")
```
### Item Generation
Procedural item placement:
```python
def place_entities(room, dungeon, max_monsters, max_items, texture):
# Place 0-2 items per room
number_of_items = random.randint(0, max_items)
for _ in range(number_of_items):
if space_available:
item = entity_factories.health_potion(x, y, texture)
item.place(x, y, dungeon)
```
## Files Modified
- `game/entity.py`: Added parent system, Item class, inventory to Actor
- `game/inventory.py`: New inventory container system
- `game/consumable.py`: New consumable component system
- `game/exceptions.py`: New Impossible exception
- `game/actions.py`: Added PickupAction, ItemAction, DropAction
- `game/input_handlers.py`: Added InventoryEventHandler classes
- `game/engine.py`: Added current_handler, inventory UI methods
- `game/procgen.py`: Added item generation
- `game/entity_factories.py`: Added health_potion factory
- `game/ui.py`: Updated help text with inventory controls
- `main.py`: Updated to Part 8, handler management
## What's Next
Part 9 will add ranged attacks and targeting:
- Targeting UI for selecting enemies
- Ranged damage items (lightning staff)
- Area-of-effect items (fireball staff)
- Confusion effects
## Learning Points
1. **Container Architecture**: Entity ownership through parent relationships
2. **Component Systems**: Modular, reusable components with parent references
3. **Exception Handling**: Clean error propagation and user feedback
4. **Modal UI**: State-based input handling for different screens
5. **Item Systems**: Flexible consumable architecture for varied effects
6. **Lifecycle Management**: Proper entity creation, transfer, and cleanup
## Running Part 8
```bash
cd simple_tcod_tutorial/build
./mcrogueface scripts/main.py
```
New features to try:
- Press G to pick up healing potions
- Press I to open inventory and use items
- Press O to drop items from inventory
- Heal yourself when injured in combat
- Manage limited inventory space (26 slots)
- Items drop from dead enemies
## Design Principles
### Flexibility Through Composition
- Items gain behavior through consumable components
- Easy to add new item types
- Reusable effect system
### Clean Ownership Transfer
- Entities always have clear parent
- Automatic visibility management
- No orphaned entities
### User-Friendly Feedback
- Clear error messages
- Consistent UI patterns
- Intuitive controls
The inventory system provides the foundation for equipment, spells, and complex item interactions in future parts!

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@ -1,625 +0,0 @@
"""
McRogueFace Tutorial - Part 5: Entity Interactions
This tutorial builds on Part 4 by adding:
- Entity class hierarchy (PlayerEntity, EnemyEntity, BoulderEntity, ButtonEntity)
- Non-blocking movement animations with destination tracking
- Bump interactions (combat, pushing)
- Step-on interactions (buttons, doors)
- Concurrent enemy AI with smooth animations
Key concepts:
- Entities inherit from mcrfpy.Entity for proper C++/Python integration
- Logic operates on destination positions during animations
- Player input is processed immediately, not blocked by animations
"""
import mcrfpy
import random
# ============================================================================
# Entity Classes - Inherit from mcrfpy.Entity
# ============================================================================
class GameEntity(mcrfpy.Entity):
"""Base class for all game entities with interaction logic"""
def __init__(self, x, y, **kwargs):
# Extract grid before passing to parent
grid = kwargs.pop('grid', None)
super().__init__(x=x, y=y, **kwargs)
# Current position is tracked by parent Entity.x/y
# Add destination tracking for animation system
self.dest_x = x
self.dest_y = y
self.is_moving = False
# Game properties
self.blocks_movement = True
self.hp = 10
self.max_hp = 10
self.entity_type = "generic"
# Add to grid if provided
if grid:
grid.entities.append(self)
def start_move(self, new_x, new_y, duration=0.2, callback=None):
"""Start animating movement to new position"""
self.dest_x = new_x
self.dest_y = new_y
self.is_moving = True
# Create animations for smooth movement
if callback:
# Only x animation needs callback since they run in parallel
anim_x = mcrfpy.Animation("x", float(new_x), duration, "easeInOutQuad", callback=callback)
else:
anim_x = mcrfpy.Animation("x", float(new_x), duration, "easeInOutQuad")
anim_y = mcrfpy.Animation("y", float(new_y), duration, "easeInOutQuad")
anim_x.start(self)
anim_y.start(self)
def get_position(self):
"""Get logical position (destination if moving, otherwise current)"""
if self.is_moving:
return (self.dest_x, self.dest_y)
return (int(self.x), int(self.y))
def on_bump(self, other):
"""Called when another entity tries to move into our space"""
return False # Block movement by default
def on_step(self, other):
"""Called when another entity steps on us (non-blocking)"""
pass
def take_damage(self, damage):
"""Apply damage and handle death"""
self.hp -= damage
if self.hp <= 0:
self.hp = 0
self.die()
def die(self):
"""Remove entity from grid"""
# The C++ die() method handles removal from grid
super().die()
class PlayerEntity(GameEntity):
"""The player character"""
def __init__(self, x, y, **kwargs):
kwargs['sprite_index'] = 64 # Hero sprite
super().__init__(x=x, y=y, **kwargs)
self.damage = 3
self.entity_type = "player"
self.blocks_movement = True
def on_bump(self, other):
"""Player bumps into something"""
if other.entity_type == "enemy":
# Deal damage
other.take_damage(self.damage)
return False # Can't move into enemy space
elif other.entity_type == "boulder":
# Try to push
dx = self.dest_x - int(self.x)
dy = self.dest_y - int(self.y)
return other.try_push(dx, dy)
return False
class EnemyEntity(GameEntity):
"""Basic enemy with AI"""
def __init__(self, x, y, **kwargs):
kwargs['sprite_index'] = 65 # Enemy sprite
super().__init__(x=x, y=y, **kwargs)
self.damage = 1
self.entity_type = "enemy"
self.ai_state = "wander"
self.hp = 5
self.max_hp = 5
def on_bump(self, other):
"""Enemy bumps into something"""
if other.entity_type == "player":
other.take_damage(self.damage)
return False
return False
def can_see_player(self, player_pos, grid):
"""Check if enemy can see the player position"""
# Simple check: within 6 tiles and has line of sight
mx, my = self.get_position()
px, py = player_pos
dist = abs(px - mx) + abs(py - my)
if dist > 6:
return False
# Use libtcod for line of sight
line = list(mcrfpy.libtcod.line(mx, my, px, py))
if len(line) > 7: # Too far
return False
for x, y in line[1:-1]: # Skip start and end points
cell = grid.at(x, y)
if cell and not cell.transparent:
return False
return True
def ai_turn(self, grid, player):
"""Decide next move"""
px, py = player.get_position()
mx, my = self.get_position()
# Simple AI: move toward player if visible
if self.can_see_player((px, py), grid):
# Calculate direction toward player
dx = 0
dy = 0
if px > mx:
dx = 1
elif px < mx:
dx = -1
if py > my:
dy = 1
elif py < my:
dy = -1
# Prefer cardinal movement
if dx != 0 and dy != 0:
# Pick horizontal or vertical based on greater distance
if abs(px - mx) > abs(py - my):
dy = 0
else:
dx = 0
return (mx + dx, my + dy)
else:
# Random movement
dx, dy = random.choice([(0,1), (0,-1), (1,0), (-1,0)])
return (mx + dx, my + dy)
class BoulderEntity(GameEntity):
"""Pushable boulder"""
def __init__(self, x, y, **kwargs):
kwargs['sprite_index'] = 7 # Boulder sprite
super().__init__(x=x, y=y, **kwargs)
self.entity_type = "boulder"
self.pushable = True
def try_push(self, dx, dy):
"""Attempt to push boulder in direction"""
new_x = int(self.x) + dx
new_y = int(self.y) + dy
# Check if destination is free
if can_move_to(new_x, new_y):
self.start_move(new_x, new_y)
return True
return False
class ButtonEntity(GameEntity):
"""Pressure plate that triggers when stepped on"""
def __init__(self, x, y, target=None, **kwargs):
kwargs['sprite_index'] = 8 # Button sprite
super().__init__(x=x, y=y, **kwargs)
self.blocks_movement = False # Can be walked over
self.entity_type = "button"
self.pressed = False
self.pressed_by = set() # Track who's pressing
self.target = target # Door or other triggerable
def on_step(self, other):
"""Activate when stepped on"""
if other not in self.pressed_by:
self.pressed_by.add(other)
if not self.pressed:
self.pressed = True
self.sprite_index = 9 # Pressed sprite
if self.target:
self.target.activate()
def on_leave(self, other):
"""Deactivate when entity leaves"""
if other in self.pressed_by:
self.pressed_by.remove(other)
if len(self.pressed_by) == 0 and self.pressed:
self.pressed = False
self.sprite_index = 8 # Unpressed sprite
if self.target:
self.target.deactivate()
class DoorEntity(GameEntity):
"""Door that can be opened by buttons"""
def __init__(self, x, y, **kwargs):
kwargs['sprite_index'] = 3 # Closed door sprite
super().__init__(x=x, y=y, **kwargs)
self.entity_type = "door"
self.is_open = False
def activate(self):
"""Open the door"""
self.is_open = True
self.blocks_movement = False
self.sprite_index = 11 # Open door sprite
def deactivate(self):
"""Close the door"""
self.is_open = False
self.blocks_movement = True
self.sprite_index = 3 # Closed door sprite
# ============================================================================
# Global Game State
# ============================================================================
# Create and activate a new scene
mcrfpy.createScene("tutorial")
mcrfpy.setScene("tutorial")
# Load the texture
texture = mcrfpy.Texture("assets/tutorial2.png", 16, 16)
# Create a grid of tiles
grid_width, grid_height = 40, 30
zoom = 2.0
grid_size = grid_width * zoom * 16, grid_height * zoom * 16
grid_position = (1024 - grid_size[0]) / 2, (768 - grid_size[1]) / 2
# Create the grid
grid = mcrfpy.Grid(
pos=grid_position,
grid_size=(grid_width, grid_height),
texture=texture,
size=grid_size,
)
grid.zoom = zoom
# Define tile types
FLOOR_TILES = [0, 1, 2, 4, 5, 6, 8, 9, 10]
WALL_TILES = [3, 7, 11]
# Game state
player = None
enemies = []
all_entities = []
is_player_turn = True
move_duration = 0.2
# ============================================================================
# Dungeon Generation (from Part 3)
# ============================================================================
class Room:
def __init__(self, x, y, width, height):
self.x1 = x
self.y1 = y
self.x2 = x + width
self.y2 = y + height
def center(self):
return ((self.x1 + self.x2) // 2, (self.y1 + self.y2) // 2)
def intersects(self, other):
return (self.x1 <= other.x2 and self.x2 >= other.x1 and
self.y1 <= other.y2 and self.y2 >= other.y1)
def create_room(room):
"""Carve out a room in the grid"""
for x in range(room.x1 + 1, room.x2):
for y in range(room.y1 + 1, room.y2):
cell = grid.at(x, y)
if cell:
cell.walkable = True
cell.transparent = True
cell.tilesprite = random.choice(FLOOR_TILES)
def create_l_shaped_hallway(x1, y1, x2, y2):
"""Create L-shaped hallway between two points"""
corner_x = x2
corner_y = y1
if random.random() < 0.5:
corner_x = x1
corner_y = y2
for x, y in mcrfpy.libtcod.line(x1, y1, corner_x, corner_y):
cell = grid.at(x, y)
if cell:
cell.walkable = True
cell.transparent = True
cell.tilesprite = random.choice(FLOOR_TILES)
for x, y in mcrfpy.libtcod.line(corner_x, corner_y, x2, y2):
cell = grid.at(x, y)
if cell:
cell.walkable = True
cell.transparent = True
cell.tilesprite = random.choice(FLOOR_TILES)
def generate_dungeon():
"""Generate a simple dungeon with rooms and hallways"""
# Initialize all cells as walls
for x in range(grid_width):
for y in range(grid_height):
cell = grid.at(x, y)
if cell:
cell.walkable = False
cell.transparent = False
cell.tilesprite = random.choice(WALL_TILES)
rooms = []
num_rooms = 0
for _ in range(30):
w = random.randint(4, 8)
h = random.randint(4, 8)
x = random.randint(0, grid_width - w - 1)
y = random.randint(0, grid_height - h - 1)
new_room = Room(x, y, w, h)
# Check if room intersects with existing rooms
if any(new_room.intersects(other_room) for other_room in rooms):
continue
create_room(new_room)
if num_rooms > 0:
# Connect to previous room
new_x, new_y = new_room.center()
prev_x, prev_y = rooms[num_rooms - 1].center()
create_l_shaped_hallway(prev_x, prev_y, new_x, new_y)
rooms.append(new_room)
num_rooms += 1
return rooms
# ============================================================================
# Entity Management
# ============================================================================
def get_entities_at(x, y):
"""Get all entities at a specific position (including moving ones)"""
entities = []
for entity in all_entities:
ex, ey = entity.get_position()
if ex == x and ey == y:
entities.append(entity)
return entities
def get_blocking_entity_at(x, y):
"""Get the first blocking entity at position"""
for entity in get_entities_at(x, y):
if entity.blocks_movement:
return entity
return None
def can_move_to(x, y):
"""Check if a position is valid for movement"""
if x < 0 or x >= grid_width or y < 0 or y >= grid_height:
return False
cell = grid.at(x, y)
if not cell or not cell.walkable:
return False
# Check for blocking entities
if get_blocking_entity_at(x, y):
return False
return True
def can_entity_move_to(entity, x, y):
"""Check if specific entity can move to position"""
if x < 0 or x >= grid_width or y < 0 or y >= grid_height:
return False
cell = grid.at(x, y)
if not cell or not cell.walkable:
return False
# Check for other blocking entities (not self)
blocker = get_blocking_entity_at(x, y)
if blocker and blocker != entity:
return False
return True
# ============================================================================
# Turn Management
# ============================================================================
def process_player_move(key):
"""Handle player input with immediate response"""
global is_player_turn
if not is_player_turn or player.is_moving:
return # Not player's turn or still animating
px, py = player.get_position()
new_x, new_y = px, py
# Calculate movement direction
if key == "W" or key == "Up":
new_y -= 1
elif key == "S" or key == "Down":
new_y += 1
elif key == "A" or key == "Left":
new_x -= 1
elif key == "D" or key == "Right":
new_x += 1
else:
return # Not a movement key
if new_x == px and new_y == py:
return # No movement
# Check what's at destination
cell = grid.at(new_x, new_y)
if not cell or not cell.walkable:
return # Can't move into walls
blocking_entity = get_blocking_entity_at(new_x, new_y)
if blocking_entity:
# Try bump interaction
if not player.on_bump(blocking_entity):
# Movement blocked, but turn still happens
is_player_turn = False
mcrfpy.setTimer("enemy_turn", process_enemy_turns, 50)
return
# Movement is valid - start player animation
is_player_turn = False
player.start_move(new_x, new_y, duration=move_duration, callback=player_move_complete)
# Update grid center to follow player
grid_anim_x = mcrfpy.Animation("center_x", (new_x + 0.5) * 16, move_duration, "linear")
grid_anim_y = mcrfpy.Animation("center_y", (new_y + 0.5) * 16, move_duration, "linear")
grid_anim_x.start(grid)
grid_anim_y.start(grid)
# Start enemy turns after a short delay (so player sees their move start first)
mcrfpy.setTimer("enemy_turn", process_enemy_turns, 50)
def process_enemy_turns(timer_name):
"""Process all enemy AI decisions and start their animations"""
enemies_to_move = []
for enemy in enemies:
if enemy.hp <= 0: # Skip dead enemies
continue
if enemy.is_moving:
continue # Skip if still animating
# AI decides next move based on player's destination
target_x, target_y = enemy.ai_turn(grid, player)
# Check if move is valid
cell = grid.at(target_x, target_y)
if not cell or not cell.walkable:
continue
# Check what's at the destination
blocking_entity = get_blocking_entity_at(target_x, target_y)
if blocking_entity and blocking_entity != enemy:
# Try bump interaction
enemy.on_bump(blocking_entity)
# Enemy doesn't move but still took its turn
else:
# Valid move - add to list
enemies_to_move.append((enemy, target_x, target_y))
# Start all enemy animations simultaneously
for enemy, tx, ty in enemies_to_move:
enemy.start_move(tx, ty, duration=move_duration)
def player_move_complete(anim, entity):
"""Called when player animation finishes"""
global is_player_turn
player.is_moving = False
# Check for step-on interactions at new position
for entity in get_entities_at(int(player.x), int(player.y)):
if entity != player and not entity.blocks_movement:
entity.on_step(player)
# Update FOV from new position
update_fov()
# Player's turn is ready again
is_player_turn = True
def update_fov():
"""Update field of view from player position"""
px, py = int(player.x), int(player.y)
grid.compute_fov(px, py, radius=8)
player.update_visibility()
# ============================================================================
# Input Handling
# ============================================================================
def handle_keys(key, state):
"""Handle keyboard input"""
if state == "start":
# Movement keys
if key in ["W", "Up", "S", "Down", "A", "Left", "D", "Right"]:
process_player_move(key)
# Register the key handler
mcrfpy.keypressScene(handle_keys)
# ============================================================================
# Initialize Game
# ============================================================================
# Generate dungeon
rooms = generate_dungeon()
# Place player in first room
if rooms:
start_x, start_y = rooms[0].center()
player = PlayerEntity(start_x, start_y, grid=grid)
all_entities.append(player)
# Place enemies in other rooms
for i in range(1, min(6, len(rooms))):
room = rooms[i]
ex, ey = room.center()
enemy = EnemyEntity(ex, ey, grid=grid)
enemies.append(enemy)
all_entities.append(enemy)
# Place some boulders
for i in range(3):
room = random.choice(rooms[1:])
bx = random.randint(room.x1 + 1, room.x2 - 1)
by = random.randint(room.y1 + 1, room.y2 - 1)
if can_move_to(bx, by):
boulder = BoulderEntity(bx, by, grid=grid)
all_entities.append(boulder)
# Place a button and door in one of the rooms
if len(rooms) > 2:
button_room = rooms[-2]
door_room = rooms[-1]
# Place door at entrance to last room
dx, dy = door_room.center()
door = DoorEntity(dx, door_room.y1, grid=grid)
all_entities.append(door)
# Place button in second to last room
bx, by = button_room.center()
button = ButtonEntity(bx, by, target=door, grid=grid)
all_entities.append(button)
# Set grid perspective to player
grid.perspective = player
grid.center_x = (start_x + 0.5) * 16
grid.center_y = (start_y + 0.5) * 16
# Initial FOV calculation
update_fov()
# Add grid to scene
mcrfpy.sceneUI("tutorial").append(grid)
# Show instructions
title = mcrfpy.Caption((320, 10),
text="Part 5: Entity Interactions - WASD to move, bump enemies, push boulders!",
)
title.fill_color = mcrfpy.Color(255, 255, 255, 255)
mcrfpy.sceneUI("tutorial").append(title)
print("Part 5: Entity Interactions - Tutorial loaded!")
print("- Bump into enemies to attack them")
print("- Push boulders by walking into them")
print("- Step on buttons to open doors")
print("- Enemies will pursue you when they can see you")

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# Part 0 - Setting Up McRogueFace
Welcome to the McRogueFace Roguelike Tutorial! This tutorial will teach you how to create a complete roguelike game using the McRogueFace game engine. Unlike traditional Python libraries, McRogueFace is a complete, portable game engine that includes everything you need to make and distribute games.
## What is McRogueFace?
McRogueFace is a high-performance game engine with Python scripting support. Think of it like Unity or Godot, but specifically designed for roguelikes and 2D games. It includes:
- A complete Python 3.12 runtime (no installation needed!)
- High-performance C++ rendering and entity management
- Built-in UI components and scene management
- Integrated audio system
- Professional sprite-based graphics
- Easy distribution - your players don't need Python installed!
## Prerequisites
Before starting this tutorial, you should:
- Have basic Python knowledge (variables, functions, classes)
- Be comfortable editing text files
- Have a text editor (VS Code, Sublime Text, Notepad++, etc.)
That's it! Unlike other roguelike tutorials, you don't need Python installed - McRogueFace includes everything.
## Getting McRogueFace
### Step 1: Download the Engine
1. Visit the McRogueFace releases page
2. Download the version for your operating system:
- `McRogueFace-Windows.zip` for Windows
- `McRogueFace-MacOS.zip` for macOS
- `McRogueFace-Linux.zip` for Linux
### Step 2: Extract the Archive
Extract the downloaded archive to a folder where you want to develop your game. You should see this structure:
```
McRogueFace/
├── mcrogueface (or mcrogueface.exe on Windows)
├── scripts/
│ └── game.py
├── assets/
│ ├── sprites/
│ ├── fonts/
│ └── audio/
└── lib/
```
### Step 3: Run the Engine
Run the McRogueFace executable:
- **Windows**: Double-click `mcrogueface.exe`
- **Mac/Linux**: Open a terminal in the folder and run `./mcrogueface`
You should see a window open with the default McRogueFace demo. This shows the engine is working correctly!
## Your First McRogueFace Script
Let's modify the engine to display "Hello Roguelike!" instead of the default demo.
### Step 1: Open game.py
Open `scripts/game.py` in your text editor. You'll see the default demo code. Replace it entirely with:
```python
import mcrfpy
# Create a new scene called "hello"
mcrfpy.createScene("hello")
# Switch to our new scene
mcrfpy.setScene("hello")
# Get the UI container for our scene
ui = mcrfpy.sceneUI("hello")
# Create a text caption
caption = mcrfpy.Caption("Hello Roguelike!", 400, 300)
caption.font_size = 32
caption.fill_color = mcrfpy.Color(255, 255, 255) # White text
# Add the caption to our scene
ui.append(caption)
# Create a smaller instruction caption
instruction = mcrfpy.Caption("Press ESC to exit", 400, 350)
instruction.font_size = 16
instruction.fill_color = mcrfpy.Color(200, 200, 200) # Light gray
ui.append(instruction)
# Set up a simple key handler
def handle_keys(key, state):
if state == "start" and key == "Escape":
mcrfpy.setScene(None) # This exits the game
mcrfpy.keypressScene(handle_keys)
print("Hello Roguelike is running!")
```
### Step 2: Save and Run
1. Save the file
2. If McRogueFace is still running, it will automatically reload!
3. If not, run the engine again
You should now see "Hello Roguelike!" displayed in the window.
### Step 3: Understanding the Code
Let's break down what we just wrote:
1. **Import mcrfpy**: This is McRogueFace's Python API
2. **Create a scene**: Scenes are like game states (menu, gameplay, inventory, etc.)
3. **UI elements**: We create Caption objects for text display
4. **Colors**: McRogueFace uses RGB colors (0-255 for each component)
5. **Input handling**: We set up a callback for keyboard input
6. **Scene switching**: Setting the scene to None exits the game
## Key Differences from Pure Python Development
### The Game Loop
Unlike typical Python scripts, McRogueFace runs your code inside its game loop:
1. The engine starts and loads `scripts/game.py`
2. Your script sets up scenes, UI elements, and callbacks
3. The engine runs at 60 FPS, handling rendering and input
4. Your callbacks are triggered by game events
### Hot Reloading
McRogueFace can reload your scripts while running! Just save your changes and the engine will reload automatically. This makes development incredibly fast.
### Asset Pipeline
McRogueFace includes a complete asset system:
- **Sprites**: Place images in `assets/sprites/`
- **Fonts**: TrueType fonts in `assets/fonts/`
- **Audio**: Sound effects and music in `assets/audio/`
We'll explore these in later lessons.
## Testing Your Setup
Let's create a more interactive test to ensure everything is working properly:
```python
import mcrfpy
# Create our test scene
mcrfpy.createScene("test")
mcrfpy.setScene("test")
ui = mcrfpy.sceneUI("test")
# Create a background frame
background = mcrfpy.Frame(0, 0, 1024, 768)
background.fill_color = mcrfpy.Color(20, 20, 30) # Dark blue-gray
ui.append(background)
# Title text
title = mcrfpy.Caption("McRogueFace Setup Test", 512, 100)
title.font_size = 36
title.fill_color = mcrfpy.Color(255, 255, 100) # Yellow
ui.append(title)
# Status text that will update
status_text = mcrfpy.Caption("Press any key to test input...", 512, 300)
status_text.font_size = 20
status_text.fill_color = mcrfpy.Color(200, 200, 200)
ui.append(status_text)
# Instructions
instructions = [
"Arrow Keys: Test movement input",
"Space: Test action input",
"Mouse Click: Test mouse input",
"ESC: Exit"
]
y_offset = 400
for instruction in instructions:
inst_caption = mcrfpy.Caption(instruction, 512, y_offset)
inst_caption.font_size = 16
inst_caption.fill_color = mcrfpy.Color(150, 150, 150)
ui.append(inst_caption)
y_offset += 30
# Input handler
def handle_input(key, state):
if state != "start":
return
if key == "Escape":
mcrfpy.setScene(None)
else:
status_text.text = f"You pressed: {key}"
status_text.fill_color = mcrfpy.Color(100, 255, 100) # Green
# Set up input handling
mcrfpy.keypressScene(handle_input)
print("Setup test is running! Try pressing different keys.")
```
## Troubleshooting
### Engine Won't Start
- **Windows**: Make sure you extracted all files, not just the .exe
- **Mac**: You may need to right-click and select "Open" the first time
- **Linux**: Make sure the file is executable: `chmod +x mcrogueface`
### Scripts Not Loading
- Ensure your script is named exactly `game.py` in the `scripts/` folder
- Check the console output for Python errors
- Make sure you're using Python 3 syntax
### Performance Issues
- McRogueFace should run smoothly at 60 FPS
- If not, check if your graphics drivers are updated
- The engine shows FPS in the window title
## What's Next?
Congratulations! You now have McRogueFace set up and running. You've learned:
- How to download and run the McRogueFace engine
- The basic structure of a McRogueFace project
- How to create scenes and UI elements
- How to handle keyboard input
- The development workflow with hot reloading
In Part 1, we'll create our player character and implement movement. We'll explore McRogueFace's entity system and learn how to create a game world.
## Why McRogueFace?
Before we continue, let's highlight why McRogueFace is excellent for roguelike development:
1. **No Installation Hassles**: Your players just download and run - no Python needed!
2. **Professional Performance**: C++ engine core means smooth gameplay even with hundreds of entities
3. **Built-in Features**: UI, audio, scenes, and animations are already there
4. **Easy Distribution**: Just zip your game folder and share it
5. **Rapid Development**: Hot reloading and Python scripting for quick iteration
Ready to make a roguelike? Let's continue to Part 1!

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@ -1,33 +0,0 @@
import mcrfpy
# Create a new scene called "hello"
mcrfpy.createScene("hello")
# Switch to our new scene
mcrfpy.setScene("hello")
# Get the UI container for our scene
ui = mcrfpy.sceneUI("hello")
# Create a text caption
caption = mcrfpy.Caption("Hello Roguelike!", 400, 300)
caption.font_size = 32
caption.fill_color = mcrfpy.Color(255, 255, 255) # White text
# Add the caption to our scene
ui.append(caption)
# Create a smaller instruction caption
instruction = mcrfpy.Caption("Press ESC to exit", 400, 350)
instruction.font_size = 16
instruction.fill_color = mcrfpy.Color(200, 200, 200) # Light gray
ui.append(instruction)
# Set up a simple key handler
def handle_keys(key, state):
if state == "start" and key == "Escape":
mcrfpy.setScene(None) # This exits the game
mcrfpy.keypressScene(handle_keys)
print("Hello Roguelike is running!")

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@ -1,55 +0,0 @@
import mcrfpy
# Create our test scene
mcrfpy.createScene("test")
mcrfpy.setScene("test")
ui = mcrfpy.sceneUI("test")
# Create a background frame
background = mcrfpy.Frame(0, 0, 1024, 768)
background.fill_color = mcrfpy.Color(20, 20, 30) # Dark blue-gray
ui.append(background)
# Title text
title = mcrfpy.Caption("McRogueFace Setup Test", 512, 100)
title.font_size = 36
title.fill_color = mcrfpy.Color(255, 255, 100) # Yellow
ui.append(title)
# Status text that will update
status_text = mcrfpy.Caption("Press any key to test input...", 512, 300)
status_text.font_size = 20
status_text.fill_color = mcrfpy.Color(200, 200, 200)
ui.append(status_text)
# Instructions
instructions = [
"Arrow Keys: Test movement input",
"Space: Test action input",
"Mouse Click: Test mouse input",
"ESC: Exit"
]
y_offset = 400
for instruction in instructions:
inst_caption = mcrfpy.Caption(instruction, 512, y_offset)
inst_caption.font_size = 16
inst_caption.fill_color = mcrfpy.Color(150, 150, 150)
ui.append(inst_caption)
y_offset += 30
# Input handler
def handle_input(key, state):
if state != "start":
return
if key == "Escape":
mcrfpy.setScene(None)
else:
status_text.text = f"You pressed: {key}"
status_text.fill_color = mcrfpy.Color(100, 255, 100) # Green
# Set up input handling
mcrfpy.keypressScene(handle_input)
print("Setup test is running! Try pressing different keys.")

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# Part 1 - Drawing the '@' Symbol and Moving It Around
In Part 0, we set up McRogueFace and created a simple "Hello Roguelike" scene. Now it's time to create the foundation of our game: a player character that can move around the screen.
In traditional roguelikes, the player is represented by the '@' symbol. We'll honor that tradition while taking advantage of McRogueFace's powerful sprite-based rendering system.
## Understanding McRogueFace's Architecture
Before we dive into code, let's understand two key concepts in McRogueFace:
### Grid - The Game World
A `Grid` represents your game world. It's a 2D array of tiles where each tile can be:
- **Walkable or not** (for collision detection)
- **Transparent or not** (for field of view, which we'll cover later)
- **Have a visual appearance** (sprite index and color)
Think of the Grid as the dungeon floor, walls, and other static elements.
### Entity - Things That Move
An `Entity` represents anything that can move around on the Grid:
- The player character
- Monsters
- Items (if you want them to be thrown or moved)
- Projectiles
Entities exist "on top of" the Grid and automatically handle smooth movement animation between tiles.
## Creating Our Game World
Let's start by creating a simple room for our player to move around in. Create a new `game.py`:
```python
import mcrfpy
# Define some constants for our tile types
FLOOR_TILE = 0
WALL_TILE = 1
PLAYER_SPRITE = 2
# Window configuration
mcrfpy.createScene("game")
mcrfpy.setScene("game")
# Configure window properties
window = mcrfpy.Window.get()
window.title = "McRogueFace Roguelike - Part 1"
# Get the UI container for our scene
ui = mcrfpy.sceneUI("game")
# Create a dark background
background = mcrfpy.Frame(0, 0, 1024, 768)
background.fill_color = mcrfpy.Color(0, 0, 0)
ui.append(background)
```
Now we need to set up our tileset. For this tutorial, we'll use ASCII-style sprites. McRogueFace comes with a built-in ASCII tileset:
```python
# Load the ASCII tileset
# This tileset has characters mapped to sprite indices
# For example: @ = 64, # = 35, . = 46
tileset = mcrfpy.Texture("assets/sprites/ascii_tileset.png", 16, 16)
# Create the game grid
# 50x30 tiles is a good size for a roguelike
GRID_WIDTH = 50
GRID_HEIGHT = 30
grid = mcrfpy.Grid(grid_x=GRID_WIDTH, grid_y=GRID_HEIGHT, texture=tileset)
grid.position = (100, 100) # Position on screen
grid.size = (800, 480) # Size in pixels
# Add the grid to our UI
ui.append(grid)
```
## Initializing the Game World
Now let's fill our grid with a simple room:
```python
def create_room():
"""Create a room with walls around the edges"""
# Fill everything with floor tiles first
for y in range(GRID_HEIGHT):
for x in range(GRID_WIDTH):
cell = grid.at(x, y)
cell.walkable = True
cell.transparent = True
cell.sprite_index = 46 # '.' character
cell.color = mcrfpy.Color(50, 50, 50) # Dark gray floor
# Create walls around the edges
for x in range(GRID_WIDTH):
# Top wall
cell = grid.at(x, 0)
cell.walkable = False
cell.transparent = False
cell.sprite_index = 35 # '#' character
cell.color = mcrfpy.Color(100, 100, 100) # Gray walls
# Bottom wall
cell = grid.at(x, GRID_HEIGHT - 1)
cell.walkable = False
cell.transparent = False
cell.sprite_index = 35 # '#' character
cell.color = mcrfpy.Color(100, 100, 100)
for y in range(GRID_HEIGHT):
# Left wall
cell = grid.at(0, y)
cell.walkable = False
cell.transparent = False
cell.sprite_index = 35 # '#' character
cell.color = mcrfpy.Color(100, 100, 100)
# Right wall
cell = grid.at(GRID_WIDTH - 1, y)
cell.walkable = False
cell.transparent = False
cell.sprite_index = 35 # '#' character
cell.color = mcrfpy.Color(100, 100, 100)
# Create the room
create_room()
```
## Creating the Player
Now let's add our player character:
```python
# Create the player entity
player = mcrfpy.Entity(x=GRID_WIDTH // 2, y=GRID_HEIGHT // 2, grid=grid)
player.sprite_index = 64 # '@' character
player.color = mcrfpy.Color(255, 255, 255) # White
# The entity is automatically added to the grid when we pass grid= parameter
# This is equivalent to: grid.entities.append(player)
```
## Handling Input
McRogueFace uses a callback system for input. For a turn-based roguelike, we only care about key presses, not releases:
```python
def handle_input(key, state):
"""Handle keyboard input for player movement"""
# Only process key presses, not releases
if state != "start":
return
# Movement deltas
dx, dy = 0, 0
# Arrow keys
if key == "Up":
dy = -1
elif key == "Down":
dy = 1
elif key == "Left":
dx = -1
elif key == "Right":
dx = 1
# Numpad movement (for true roguelike feel!)
elif key == "Num7": # Northwest
dx, dy = -1, -1
elif key == "Num8": # North
dy = -1
elif key == "Num9": # Northeast
dx, dy = 1, -1
elif key == "Num4": # West
dx = -1
elif key == "Num6": # East
dx = 1
elif key == "Num1": # Southwest
dx, dy = -1, 1
elif key == "Num2": # South
dy = 1
elif key == "Num3": # Southeast
dx, dy = 1, 1
# Escape to quit
elif key == "Escape":
mcrfpy.setScene(None)
return
# If there's movement, try to move the player
if dx != 0 or dy != 0:
move_player(dx, dy)
# Register the input handler
mcrfpy.keypressScene(handle_input)
```
## Implementing Movement with Collision Detection
Now let's implement the movement function with proper collision detection:
```python
def move_player(dx, dy):
"""Move the player if the destination is walkable"""
# Calculate new position
new_x = player.x + dx
new_y = player.y + dy
# Check bounds
if new_x < 0 or new_x >= GRID_WIDTH or new_y < 0 or new_y >= GRID_HEIGHT:
return
# Check if the destination is walkable
destination = grid.at(new_x, new_y)
if destination.walkable:
# Move the player
player.x = new_x
player.y = new_y
# The entity will automatically animate to the new position!
```
## Adding Visual Polish
Let's add some UI elements to make our game look more polished:
```python
# Add a title
title = mcrfpy.Caption("McRogueFace Roguelike", 512, 30)
title.font_size = 24
title.fill_color = mcrfpy.Color(255, 255, 100) # Yellow
ui.append(title)
# Add instructions
instructions = mcrfpy.Caption("Arrow Keys or Numpad to move, ESC to quit", 512, 60)
instructions.font_size = 16
instructions.fill_color = mcrfpy.Color(200, 200, 200) # Light gray
ui.append(instructions)
# Add a status line at the bottom
status = mcrfpy.Caption("@ You", 100, 600)
status.font_size = 18
status.fill_color = mcrfpy.Color(255, 255, 255)
ui.append(status)
```
## Complete Code
Here's the complete `game.py` for Part 1:
```python
import mcrfpy
# Window configuration
mcrfpy.createScene("game")
mcrfpy.setScene("game")
window = mcrfpy.Window.get()
window.title = "McRogueFace Roguelike - Part 1"
# Get the UI container for our scene
ui = mcrfpy.sceneUI("game")
# Create a dark background
background = mcrfpy.Frame(0, 0, 1024, 768)
background.fill_color = mcrfpy.Color(0, 0, 0)
ui.append(background)
# Load the ASCII tileset
tileset = mcrfpy.Texture("assets/sprites/ascii_tileset.png", 16, 16)
# Create the game grid
GRID_WIDTH = 50
GRID_HEIGHT = 30
grid = mcrfpy.Grid(grid_x=GRID_WIDTH, grid_y=GRID_HEIGHT, texture=tileset)
grid.position = (100, 100)
grid.size = (800, 480)
ui.append(grid)
def create_room():
"""Create a room with walls around the edges"""
# Fill everything with floor tiles first
for y in range(GRID_HEIGHT):
for x in range(GRID_WIDTH):
cell = grid.at(x, y)
cell.walkable = True
cell.transparent = True
cell.sprite_index = 46 # '.' character
cell.color = mcrfpy.Color(50, 50, 50) # Dark gray floor
# Create walls around the edges
for x in range(GRID_WIDTH):
# Top wall
cell = grid.at(x, 0)
cell.walkable = False
cell.transparent = False
cell.sprite_index = 35 # '#' character
cell.color = mcrfpy.Color(100, 100, 100) # Gray walls
# Bottom wall
cell = grid.at(x, GRID_HEIGHT - 1)
cell.walkable = False
cell.transparent = False
cell.sprite_index = 35 # '#' character
cell.color = mcrfpy.Color(100, 100, 100)
for y in range(GRID_HEIGHT):
# Left wall
cell = grid.at(0, y)
cell.walkable = False
cell.transparent = False
cell.sprite_index = 35 # '#' character
cell.color = mcrfpy.Color(100, 100, 100)
# Right wall
cell = grid.at(GRID_WIDTH - 1, y)
cell.walkable = False
cell.transparent = False
cell.sprite_index = 35 # '#' character
cell.color = mcrfpy.Color(100, 100, 100)
# Create the room
create_room()
# Create the player entity
player = mcrfpy.Entity(x=GRID_WIDTH // 2, y=GRID_HEIGHT // 2, grid=grid)
player.sprite_index = 64 # '@' character
player.color = mcrfpy.Color(255, 255, 255) # White
def move_player(dx, dy):
"""Move the player if the destination is walkable"""
# Calculate new position
new_x = player.x + dx
new_y = player.y + dy
# Check bounds
if new_x < 0 or new_x >= GRID_WIDTH or new_y < 0 or new_y >= GRID_HEIGHT:
return
# Check if the destination is walkable
destination = grid.at(new_x, new_y)
if destination.walkable:
# Move the player
player.x = new_x
player.y = new_y
def handle_input(key, state):
"""Handle keyboard input for player movement"""
# Only process key presses, not releases
if state != "start":
return
# Movement deltas
dx, dy = 0, 0
# Arrow keys
if key == "Up":
dy = -1
elif key == "Down":
dy = 1
elif key == "Left":
dx = -1
elif key == "Right":
dx = 1
# Numpad movement (for true roguelike feel!)
elif key == "Num7": # Northwest
dx, dy = -1, -1
elif key == "Num8": # North
dy = -1
elif key == "Num9": # Northeast
dx, dy = 1, -1
elif key == "Num4": # West
dx = -1
elif key == "Num6": # East
dx = 1
elif key == "Num1": # Southwest
dx, dy = -1, 1
elif key == "Num2": # South
dy = 1
elif key == "Num3": # Southeast
dx, dy = 1, 1
# Escape to quit
elif key == "Escape":
mcrfpy.setScene(None)
return
# If there's movement, try to move the player
if dx != 0 or dy != 0:
move_player(dx, dy)
# Register the input handler
mcrfpy.keypressScene(handle_input)
# Add UI elements
title = mcrfpy.Caption("McRogueFace Roguelike", 512, 30)
title.font_size = 24
title.fill_color = mcrfpy.Color(255, 255, 100)
ui.append(title)
instructions = mcrfpy.Caption("Arrow Keys or Numpad to move, ESC to quit", 512, 60)
instructions.font_size = 16
instructions.fill_color = mcrfpy.Color(200, 200, 200)
ui.append(instructions)
status = mcrfpy.Caption("@ You", 100, 600)
status.font_size = 18
status.fill_color = mcrfpy.Color(255, 255, 255)
ui.append(status)
print("Part 1: The @ symbol moves!")
```
## Understanding What We've Built
Let's review the key concepts we've implemented:
1. **Grid-Entity Architecture**: The Grid represents our static world (floors and walls), while the Entity (player) moves on top of it.
2. **Collision Detection**: By checking the `walkable` property of grid cells, we prevent the player from walking through walls.
3. **Turn-Based Input**: By only responding to key presses (not releases), we've created true turn-based movement.
4. **Visual Feedback**: The Entity system automatically animates movement between tiles, giving smooth visual feedback.
## Exercises
Try these modifications to deepen your understanding:
1. **Add More Rooms**: Create multiple rooms connected by corridors
2. **Different Tile Types**: Add doors (walkable but different appearance)
3. **Sprint Movement**: Hold Shift to move multiple tiles at once
4. **Mouse Support**: Click a tile to pathfind to it (we'll cover pathfinding properly later)
## ASCII Sprite Reference
Here are some useful ASCII character indices for the default tileset:
- @ (player): 64
- # (wall): 35
- . (floor): 46
- + (door): 43
- ~ (water): 126
- % (item): 37
- ! (potion): 33
## What's Next?
In Part 2, we'll expand our world with:
- A proper Entity system for managing multiple objects
- NPCs that can also move around
- A more interesting map layout
- The beginning of our game architecture
The foundation is set - you have a player character that can move around a world with collision detection. This is the core of any roguelike game!

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@ -1,162 +0,0 @@
import mcrfpy
# Window configuration
mcrfpy.createScene("game")
mcrfpy.setScene("game")
window = mcrfpy.Window.get()
window.title = "McRogueFace Roguelike - Part 1"
# Get the UI container for our scene
ui = mcrfpy.sceneUI("game")
# Create a dark background
background = mcrfpy.Frame(0, 0, 1024, 768)
background.fill_color = mcrfpy.Color(0, 0, 0)
ui.append(background)
# Load the ASCII tileset
tileset = mcrfpy.Texture("assets/sprites/ascii_tileset.png", 16, 16)
# Create the game grid
GRID_WIDTH = 50
GRID_HEIGHT = 30
grid = mcrfpy.Grid(grid_x=GRID_WIDTH, grid_y=GRID_HEIGHT, texture=tileset)
grid.position = (100, 100)
grid.size = (800, 480)
ui.append(grid)
def create_room():
"""Create a room with walls around the edges"""
# Fill everything with floor tiles first
for y in range(GRID_HEIGHT):
for x in range(GRID_WIDTH):
cell = grid.at(x, y)
cell.walkable = True
cell.transparent = True
cell.sprite_index = 46 # '.' character
cell.color = mcrfpy.Color(50, 50, 50) # Dark gray floor
# Create walls around the edges
for x in range(GRID_WIDTH):
# Top wall
cell = grid.at(x, 0)
cell.walkable = False
cell.transparent = False
cell.sprite_index = 35 # '#' character
cell.color = mcrfpy.Color(100, 100, 100) # Gray walls
# Bottom wall
cell = grid.at(x, GRID_HEIGHT - 1)
cell.walkable = False
cell.transparent = False
cell.sprite_index = 35 # '#' character
cell.color = mcrfpy.Color(100, 100, 100)
for y in range(GRID_HEIGHT):
# Left wall
cell = grid.at(0, y)
cell.walkable = False
cell.transparent = False
cell.sprite_index = 35 # '#' character
cell.color = mcrfpy.Color(100, 100, 100)
# Right wall
cell = grid.at(GRID_WIDTH - 1, y)
cell.walkable = False
cell.transparent = False
cell.sprite_index = 35 # '#' character
cell.color = mcrfpy.Color(100, 100, 100)
# Create the room
create_room()
# Create the player entity
player = mcrfpy.Entity(x=GRID_WIDTH // 2, y=GRID_HEIGHT // 2, grid=grid)
player.sprite_index = 64 # '@' character
player.color = mcrfpy.Color(255, 255, 255) # White
def move_player(dx, dy):
"""Move the player if the destination is walkable"""
# Calculate new position
new_x = player.x + dx
new_y = player.y + dy
# Check bounds
if new_x < 0 or new_x >= GRID_WIDTH or new_y < 0 or new_y >= GRID_HEIGHT:
return
# Check if the destination is walkable
destination = grid.at(new_x, new_y)
if destination.walkable:
# Move the player
player.x = new_x
player.y = new_y
def handle_input(key, state):
"""Handle keyboard input for player movement"""
# Only process key presses, not releases
if state != "start":
return
# Movement deltas
dx, dy = 0, 0
# Arrow keys
if key == "Up":
dy = -1
elif key == "Down":
dy = 1
elif key == "Left":
dx = -1
elif key == "Right":
dx = 1
# Numpad movement (for true roguelike feel!)
elif key == "Num7": # Northwest
dx, dy = -1, -1
elif key == "Num8": # North
dy = -1
elif key == "Num9": # Northeast
dx, dy = 1, -1
elif key == "Num4": # West
dx = -1
elif key == "Num6": # East
dx = 1
elif key == "Num1": # Southwest
dx, dy = -1, 1
elif key == "Num2": # South
dy = 1
elif key == "Num3": # Southeast
dx, dy = 1, 1
# Escape to quit
elif key == "Escape":
mcrfpy.setScene(None)
return
# If there's movement, try to move the player
if dx != 0 or dy != 0:
move_player(dx, dy)
# Register the input handler
mcrfpy.keypressScene(handle_input)
# Add UI elements
title = mcrfpy.Caption("McRogueFace Roguelike", 512, 30)
title.font_size = 24
title.fill_color = mcrfpy.Color(255, 255, 100)
ui.append(title)
instructions = mcrfpy.Caption("Arrow Keys or Numpad to move, ESC to quit", 512, 60)
instructions.font_size = 16
instructions.fill_color = mcrfpy.Color(200, 200, 200)
ui.append(instructions)
status = mcrfpy.Caption("@ You", 100, 600)
status.font_size = 18
status.fill_color = mcrfpy.Color(255, 255, 255)
ui.append(status)
print("Part 1: The @ symbol moves!")

View File

@ -1,562 +0,0 @@
# Part 2 - The Generic Entity, the Render Functions, and the Map
In Part 1, we created a player character that could move around a simple room. Now it's time to build a proper architecture for our roguelike. We'll create a flexible entity system, a proper map structure, and organize our code for future expansion.
## Understanding Game Architecture
Before diving into code, let's understand the architecture we're building:
1. **Entities**: Anything that can exist in the game world (player, monsters, items)
2. **Game Map**: The dungeon structure with tiles that can be walls or floors
3. **Game Engine**: Coordinates everything - entities, map, input, and rendering
In McRogueFace, we'll adapt these concepts to work with the engine's scene-based architecture.
## Creating a Flexible Entity System
While McRogueFace provides a built-in `Entity` class, we'll create a wrapper to add game-specific functionality:
```python
class GameObject:
"""Base class for all game objects (player, monsters, items)"""
def __init__(self, x, y, sprite_index, color, name, blocks=False):
self.x = x
self.y = y
self.sprite_index = sprite_index
self.color = color
self.name = name
self.blocks = blocks # Does this entity block movement?
self._entity = None # The McRogueFace entity
self.grid = None # Reference to the grid
def attach_to_grid(self, grid):
"""Attach this game object to a McRogueFace grid"""
self.grid = grid
self._entity = mcrfpy.Entity(x=self.x, y=self.y, grid=grid)
self._entity.sprite_index = self.sprite_index
self._entity.color = self.color
def move(self, dx, dy):
"""Move by the given amount if possible"""
if not self.grid:
return
new_x = self.x + dx
new_y = self.y + dy
# Update our position
self.x = new_x
self.y = new_y
# Update the visual entity
if self._entity:
self._entity.x = new_x
self._entity.y = new_y
def destroy(self):
"""Remove this entity from the game"""
if self._entity and self.grid:
# Find and remove from grid's entity list
for i, entity in enumerate(self.grid.entities):
if entity == self._entity:
del self.grid.entities[i]
break
self._entity = None
```
## Building the Game Map
Let's create a proper map class that manages our dungeon:
```python
class GameMap:
"""Manages the game world"""
def __init__(self, width, height):
self.width = width
self.height = height
self.grid = None
self.entities = [] # List of GameObjects
def create_grid(self, tileset):
"""Create the McRogueFace grid"""
self.grid = mcrfpy.Grid(grid_x=self.width, grid_y=self.height, texture=tileset)
self.grid.position = (100, 100)
self.grid.size = (800, 480)
# Initialize all tiles as walls
self.fill_with_walls()
return self.grid
def fill_with_walls(self):
"""Fill the entire map with wall tiles"""
for y in range(self.height):
for x in range(self.width):
self.set_tile(x, y, walkable=False, transparent=False,
sprite_index=35, color=(100, 100, 100))
def set_tile(self, x, y, walkable, transparent, sprite_index, color):
"""Set properties for a specific tile"""
if 0 <= x < self.width and 0 <= y < self.height:
cell = self.grid.at(x, y)
cell.walkable = walkable
cell.transparent = transparent
cell.sprite_index = sprite_index
cell.color = mcrfpy.Color(*color)
def create_room(self, x1, y1, x2, y2):
"""Carve out a room in the map"""
# Make sure coordinates are in the right order
x1, x2 = min(x1, x2), max(x1, x2)
y1, y2 = min(y1, y2), max(y1, y2)
# Carve out floor tiles
for y in range(y1, y2 + 1):
for x in range(x1, x2 + 1):
self.set_tile(x, y, walkable=True, transparent=True,
sprite_index=46, color=(50, 50, 50))
def create_tunnel_h(self, x1, x2, y):
"""Create a horizontal tunnel"""
for x in range(min(x1, x2), max(x1, x2) + 1):
self.set_tile(x, y, walkable=True, transparent=True,
sprite_index=46, color=(50, 50, 50))
def create_tunnel_v(self, y1, y2, x):
"""Create a vertical tunnel"""
for y in range(min(y1, y2), max(y1, y2) + 1):
self.set_tile(x, y, walkable=True, transparent=True,
sprite_index=46, color=(50, 50, 50))
def is_blocked(self, x, y):
"""Check if a tile blocks movement"""
# Check map boundaries
if x < 0 or x >= self.width or y < 0 or y >= self.height:
return True
# Check if tile is walkable
if not self.grid.at(x, y).walkable:
return True
# Check if any blocking entity is at this position
for entity in self.entities:
if entity.blocks and entity.x == x and entity.y == y:
return True
return False
def add_entity(self, entity):
"""Add a GameObject to the map"""
self.entities.append(entity)
entity.attach_to_grid(self.grid)
def get_blocking_entity_at(self, x, y):
"""Return any blocking entity at the given position"""
for entity in self.entities:
if entity.blocks and entity.x == x and entity.y == y:
return entity
return None
```
## Creating the Game Engine
Now let's build our game engine to tie everything together:
```python
class Engine:
"""Main game engine that manages game state"""
def __init__(self):
self.game_map = None
self.player = None
self.entities = []
# Create the game scene
mcrfpy.createScene("game")
mcrfpy.setScene("game")
# Configure window
window = mcrfpy.Window.get()
window.title = "McRogueFace Roguelike - Part 2"
# Get UI container
self.ui = mcrfpy.sceneUI("game")
# Add background
background = mcrfpy.Frame(0, 0, 1024, 768)
background.fill_color = mcrfpy.Color(0, 0, 0)
self.ui.append(background)
# Load tileset
self.tileset = mcrfpy.Texture("assets/sprites/ascii_tileset.png", 16, 16)
# Create the game world
self.setup_game()
# Setup input handling
self.setup_input()
# Add UI elements
self.setup_ui()
def setup_game(self):
"""Initialize the game world"""
# Create the map
self.game_map = GameMap(50, 30)
grid = self.game_map.create_grid(self.tileset)
self.ui.append(grid)
# Create some rooms
self.game_map.create_room(10, 10, 20, 20)
self.game_map.create_room(30, 15, 40, 25)
self.game_map.create_room(15, 22, 25, 28)
# Connect rooms with tunnels
self.game_map.create_tunnel_h(20, 30, 15)
self.game_map.create_tunnel_v(20, 22, 20)
# Create player
self.player = GameObject(15, 15, 64, (255, 255, 255), "Player", blocks=True)
self.game_map.add_entity(self.player)
# Create an NPC
npc = GameObject(35, 20, 64, (255, 255, 0), "NPC", blocks=True)
self.game_map.add_entity(npc)
self.entities.append(npc)
# Create some items (non-blocking)
potion = GameObject(12, 12, 33, (255, 0, 255), "Potion", blocks=False)
self.game_map.add_entity(potion)
self.entities.append(potion)
def handle_movement(self, dx, dy):
"""Handle player movement"""
new_x = self.player.x + dx
new_y = self.player.y + dy
# Check if movement is blocked
if not self.game_map.is_blocked(new_x, new_y):
self.player.move(dx, dy)
else:
# Check if we bumped into an entity
target = self.game_map.get_blocking_entity_at(new_x, new_y)
if target:
print(f"You bump into the {target.name}!")
def setup_input(self):
"""Setup keyboard input handling"""
def handle_keys(key, state):
if state != "start":
return
# Movement keys
movement = {
"Up": (0, -1),
"Down": (0, 1),
"Left": (-1, 0),
"Right": (1, 0),
"Num7": (-1, -1),
"Num8": (0, -1),
"Num9": (1, -1),
"Num4": (-1, 0),
"Num6": (1, 0),
"Num1": (-1, 1),
"Num2": (0, 1),
"Num3": (1, 1),
}
if key in movement:
dx, dy = movement[key]
self.handle_movement(dx, dy)
elif key == "Escape":
mcrfpy.setScene(None)
mcrfpy.keypressScene(handle_keys)
def setup_ui(self):
"""Setup UI elements"""
# Title
title = mcrfpy.Caption("McRogueFace Roguelike - Part 2", 512, 30)
title.font_size = 24
title.fill_color = mcrfpy.Color(255, 255, 100)
self.ui.append(title)
# Instructions
instructions = mcrfpy.Caption("Explore the dungeon! ESC to quit", 512, 60)
instructions.font_size = 16
instructions.fill_color = mcrfpy.Color(200, 200, 200)
self.ui.append(instructions)
```
## Putting It All Together
Here's the complete `game.py` file:
```python
import mcrfpy
class GameObject:
"""Base class for all game objects (player, monsters, items)"""
def __init__(self, x, y, sprite_index, color, name, blocks=False):
self.x = x
self.y = y
self.sprite_index = sprite_index
self.color = color
self.name = name
self.blocks = blocks
self._entity = None
self.grid = None
def attach_to_grid(self, grid):
"""Attach this game object to a McRogueFace grid"""
self.grid = grid
self._entity = mcrfpy.Entity(x=self.x, y=self.y, grid=grid)
self._entity.sprite_index = self.sprite_index
self._entity.color = mcrfpy.Color(*self.color)
def move(self, dx, dy):
"""Move by the given amount if possible"""
if not self.grid:
return
new_x = self.x + dx
new_y = self.y + dy
self.x = new_x
self.y = new_y
if self._entity:
self._entity.x = new_x
self._entity.y = new_y
class GameMap:
"""Manages the game world"""
def __init__(self, width, height):
self.width = width
self.height = height
self.grid = None
self.entities = []
def create_grid(self, tileset):
"""Create the McRogueFace grid"""
self.grid = mcrfpy.Grid(grid_x=self.width, grid_y=self.height, texture=tileset)
self.grid.position = (100, 100)
self.grid.size = (800, 480)
self.fill_with_walls()
return self.grid
def fill_with_walls(self):
"""Fill the entire map with wall tiles"""
for y in range(self.height):
for x in range(self.width):
self.set_tile(x, y, walkable=False, transparent=False,
sprite_index=35, color=(100, 100, 100))
def set_tile(self, x, y, walkable, transparent, sprite_index, color):
"""Set properties for a specific tile"""
if 0 <= x < self.width and 0 <= y < self.height:
cell = self.grid.at(x, y)
cell.walkable = walkable
cell.transparent = transparent
cell.sprite_index = sprite_index
cell.color = mcrfpy.Color(*color)
def create_room(self, x1, y1, x2, y2):
"""Carve out a room in the map"""
x1, x2 = min(x1, x2), max(x1, x2)
y1, y2 = min(y1, y2), max(y1, y2)
for y in range(y1, y2 + 1):
for x in range(x1, x2 + 1):
self.set_tile(x, y, walkable=True, transparent=True,
sprite_index=46, color=(50, 50, 50))
def create_tunnel_h(self, x1, x2, y):
"""Create a horizontal tunnel"""
for x in range(min(x1, x2), max(x1, x2) + 1):
self.set_tile(x, y, walkable=True, transparent=True,
sprite_index=46, color=(50, 50, 50))
def create_tunnel_v(self, y1, y2, x):
"""Create a vertical tunnel"""
for y in range(min(y1, y2), max(y1, y2) + 1):
self.set_tile(x, y, walkable=True, transparent=True,
sprite_index=46, color=(50, 50, 50))
def is_blocked(self, x, y):
"""Check if a tile blocks movement"""
if x < 0 or x >= self.width or y < 0 or y >= self.height:
return True
if not self.grid.at(x, y).walkable:
return True
for entity in self.entities:
if entity.blocks and entity.x == x and entity.y == y:
return True
return False
def add_entity(self, entity):
"""Add a GameObject to the map"""
self.entities.append(entity)
entity.attach_to_grid(self.grid)
def get_blocking_entity_at(self, x, y):
"""Return any blocking entity at the given position"""
for entity in self.entities:
if entity.blocks and entity.x == x and entity.y == y:
return entity
return None
class Engine:
"""Main game engine that manages game state"""
def __init__(self):
self.game_map = None
self.player = None
self.entities = []
mcrfpy.createScene("game")
mcrfpy.setScene("game")
window = mcrfpy.Window.get()
window.title = "McRogueFace Roguelike - Part 2"
self.ui = mcrfpy.sceneUI("game")
background = mcrfpy.Frame(0, 0, 1024, 768)
background.fill_color = mcrfpy.Color(0, 0, 0)
self.ui.append(background)
self.tileset = mcrfpy.Texture("assets/sprites/ascii_tileset.png", 16, 16)
self.setup_game()
self.setup_input()
self.setup_ui()
def setup_game(self):
"""Initialize the game world"""
self.game_map = GameMap(50, 30)
grid = self.game_map.create_grid(self.tileset)
self.ui.append(grid)
self.game_map.create_room(10, 10, 20, 20)
self.game_map.create_room(30, 15, 40, 25)
self.game_map.create_room(15, 22, 25, 28)
self.game_map.create_tunnel_h(20, 30, 15)
self.game_map.create_tunnel_v(20, 22, 20)
self.player = GameObject(15, 15, 64, (255, 255, 255), "Player", blocks=True)
self.game_map.add_entity(self.player)
npc = GameObject(35, 20, 64, (255, 255, 0), "NPC", blocks=True)
self.game_map.add_entity(npc)
self.entities.append(npc)
potion = GameObject(12, 12, 33, (255, 0, 255), "Potion", blocks=False)
self.game_map.add_entity(potion)
self.entities.append(potion)
def handle_movement(self, dx, dy):
"""Handle player movement"""
new_x = self.player.x + dx
new_y = self.player.y + dy
if not self.game_map.is_blocked(new_x, new_y):
self.player.move(dx, dy)
else:
target = self.game_map.get_blocking_entity_at(new_x, new_y)
if target:
print(f"You bump into the {target.name}!")
def setup_input(self):
"""Setup keyboard input handling"""
def handle_keys(key, state):
if state != "start":
return
movement = {
"Up": (0, -1), "Down": (0, 1),
"Left": (-1, 0), "Right": (1, 0),
"Num7": (-1, -1), "Num8": (0, -1), "Num9": (1, -1),
"Num4": (-1, 0), "Num6": (1, 0),
"Num1": (-1, 1), "Num2": (0, 1), "Num3": (1, 1),
}
if key in movement:
dx, dy = movement[key]
self.handle_movement(dx, dy)
elif key == "Escape":
mcrfpy.setScene(None)
mcrfpy.keypressScene(handle_keys)
def setup_ui(self):
"""Setup UI elements"""
title = mcrfpy.Caption("McRogueFace Roguelike - Part 2", 512, 30)
title.font_size = 24
title.fill_color = mcrfpy.Color(255, 255, 100)
self.ui.append(title)
instructions = mcrfpy.Caption("Explore the dungeon! ESC to quit", 512, 60)
instructions.font_size = 16
instructions.fill_color = mcrfpy.Color(200, 200, 200)
self.ui.append(instructions)
# Create and run the game
engine = Engine()
print("Part 2: Entities and Maps!")
```
## Understanding the Architecture
### GameObject Class
Our `GameObject` class wraps McRogueFace's `Entity` and adds:
- Game logic properties (name, blocking)
- Position tracking independent of the visual entity
- Easy attachment/detachment from grids
### GameMap Class
The `GameMap` manages:
- The McRogueFace `Grid` for visual representation
- A list of all entities in the map
- Collision detection including entity blocking
- Map generation utilities (rooms, tunnels)
### Engine Class
The `Engine` coordinates everything:
- Scene and UI setup
- Game state management
- Input handling
- Entity-map interactions
## Key Improvements from Part 1
1. **Proper Entity Management**: Multiple entities can exist and interact
2. **Blocking Entities**: Some entities block movement, others don't
3. **Map Generation**: Tools for creating rooms and tunnels
4. **Collision System**: Checks both tiles and entities
5. **Organized Code**: Clear separation of concerns
## Exercises
1. **Add More Entity Types**: Create different sprites for monsters, items, and NPCs
2. **Entity Interactions**: Make items disappear when walked over
3. **Random Map Generation**: Place rooms and tunnels randomly
4. **Entity Properties**: Add health, damage, or other attributes to GameObjects
## What's Next?
In Part 3, we'll implement proper dungeon generation with:
- Procedurally generated rooms
- Smart tunnel routing
- Entity spawning
- The beginning of a real roguelike dungeon!
We now have a solid foundation with proper entity management and map structure. This architecture will serve us well as we add more complex features to our roguelike!

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@ -1,217 +0,0 @@
import mcrfpy
class GameObject:
"""Base class for all game objects (player, monsters, items)"""
def __init__(self, x, y, sprite_index, color, name, blocks=False):
self.x = x
self.y = y
self.sprite_index = sprite_index
self.color = color
self.name = name
self.blocks = blocks
self._entity = None
self.grid = None
def attach_to_grid(self, grid):
"""Attach this game object to a McRogueFace grid"""
self.grid = grid
self._entity = mcrfpy.Entity(x=self.x, y=self.y, grid=grid)
self._entity.sprite_index = self.sprite_index
self._entity.color = mcrfpy.Color(*self.color)
def move(self, dx, dy):
"""Move by the given amount if possible"""
if not self.grid:
return
new_x = self.x + dx
new_y = self.y + dy
self.x = new_x
self.y = new_y
if self._entity:
self._entity.x = new_x
self._entity.y = new_y
class GameMap:
"""Manages the game world"""
def __init__(self, width, height):
self.width = width
self.height = height
self.grid = None
self.entities = []
def create_grid(self, tileset):
"""Create the McRogueFace grid"""
self.grid = mcrfpy.Grid(grid_x=self.width, grid_y=self.height, texture=tileset)
self.grid.position = (100, 100)
self.grid.size = (800, 480)
self.fill_with_walls()
return self.grid
def fill_with_walls(self):
"""Fill the entire map with wall tiles"""
for y in range(self.height):
for x in range(self.width):
self.set_tile(x, y, walkable=False, transparent=False,
sprite_index=35, color=(100, 100, 100))
def set_tile(self, x, y, walkable, transparent, sprite_index, color):
"""Set properties for a specific tile"""
if 0 <= x < self.width and 0 <= y < self.height:
cell = self.grid.at(x, y)
cell.walkable = walkable
cell.transparent = transparent
cell.sprite_index = sprite_index
cell.color = mcrfpy.Color(*color)
def create_room(self, x1, y1, x2, y2):
"""Carve out a room in the map"""
x1, x2 = min(x1, x2), max(x1, x2)
y1, y2 = min(y1, y2), max(y1, y2)
for y in range(y1, y2 + 1):
for x in range(x1, x2 + 1):
self.set_tile(x, y, walkable=True, transparent=True,
sprite_index=46, color=(50, 50, 50))
def create_tunnel_h(self, x1, x2, y):
"""Create a horizontal tunnel"""
for x in range(min(x1, x2), max(x1, x2) + 1):
self.set_tile(x, y, walkable=True, transparent=True,
sprite_index=46, color=(50, 50, 50))
def create_tunnel_v(self, y1, y2, x):
"""Create a vertical tunnel"""
for y in range(min(y1, y2), max(y1, y2) + 1):
self.set_tile(x, y, walkable=True, transparent=True,
sprite_index=46, color=(50, 50, 50))
def is_blocked(self, x, y):
"""Check if a tile blocks movement"""
if x < 0 or x >= self.width or y < 0 or y >= self.height:
return True
if not self.grid.at(x, y).walkable:
return True
for entity in self.entities:
if entity.blocks and entity.x == x and entity.y == y:
return True
return False
def add_entity(self, entity):
"""Add a GameObject to the map"""
self.entities.append(entity)
entity.attach_to_grid(self.grid)
def get_blocking_entity_at(self, x, y):
"""Return any blocking entity at the given position"""
for entity in self.entities:
if entity.blocks and entity.x == x and entity.y == y:
return entity
return None
class Engine:
"""Main game engine that manages game state"""
def __init__(self):
self.game_map = None
self.player = None
self.entities = []
mcrfpy.createScene("game")
mcrfpy.setScene("game")
window = mcrfpy.Window.get()
window.title = "McRogueFace Roguelike - Part 2"
self.ui = mcrfpy.sceneUI("game")
background = mcrfpy.Frame(0, 0, 1024, 768)
background.fill_color = mcrfpy.Color(0, 0, 0)
self.ui.append(background)
self.tileset = mcrfpy.Texture("assets/sprites/ascii_tileset.png", 16, 16)
self.setup_game()
self.setup_input()
self.setup_ui()
def setup_game(self):
"""Initialize the game world"""
self.game_map = GameMap(50, 30)
grid = self.game_map.create_grid(self.tileset)
self.ui.append(grid)
self.game_map.create_room(10, 10, 20, 20)
self.game_map.create_room(30, 15, 40, 25)
self.game_map.create_room(15, 22, 25, 28)
self.game_map.create_tunnel_h(20, 30, 15)
self.game_map.create_tunnel_v(20, 22, 20)
self.player = GameObject(15, 15, 64, (255, 255, 255), "Player", blocks=True)
self.game_map.add_entity(self.player)
npc = GameObject(35, 20, 64, (255, 255, 0), "NPC", blocks=True)
self.game_map.add_entity(npc)
self.entities.append(npc)
potion = GameObject(12, 12, 33, (255, 0, 255), "Potion", blocks=False)
self.game_map.add_entity(potion)
self.entities.append(potion)
def handle_movement(self, dx, dy):
"""Handle player movement"""
new_x = self.player.x + dx
new_y = self.player.y + dy
if not self.game_map.is_blocked(new_x, new_y):
self.player.move(dx, dy)
else:
target = self.game_map.get_blocking_entity_at(new_x, new_y)
if target:
print(f"You bump into the {target.name}!")
def setup_input(self):
"""Setup keyboard input handling"""
def handle_keys(key, state):
if state != "start":
return
movement = {
"Up": (0, -1), "Down": (0, 1),
"Left": (-1, 0), "Right": (1, 0),
"Num7": (-1, -1), "Num8": (0, -1), "Num9": (1, -1),
"Num4": (-1, 0), "Num6": (1, 0),
"Num1": (-1, 1), "Num2": (0, 1), "Num3": (1, 1),
}
if key in movement:
dx, dy = movement[key]
self.handle_movement(dx, dy)
elif key == "Escape":
mcrfpy.setScene(None)
mcrfpy.keypressScene(handle_keys)
def setup_ui(self):
"""Setup UI elements"""
title = mcrfpy.Caption("McRogueFace Roguelike - Part 2", 512, 30)
title.font_size = 24
title.fill_color = mcrfpy.Color(255, 255, 100)
self.ui.append(title)
instructions = mcrfpy.Caption("Explore the dungeon! ESC to quit", 512, 60)
instructions.font_size = 16
instructions.fill_color = mcrfpy.Color(200, 200, 200)
self.ui.append(instructions)
# Create and run the game
engine = Engine()
print("Part 2: Entities and Maps!")

View File

@ -1,548 +0,0 @@
# Part 3 - Generating a Dungeon
In Parts 1 and 2, we created a player that could move around and interact with a hand-crafted dungeon. Now it's time to generate dungeons procedurally - a core feature of any roguelike game!
## The Plan
We'll create a dungeon generator that:
1. Places rectangular rooms randomly
2. Ensures rooms don't overlap
3. Connects rooms with tunnels
4. Places the player in the first room
This is a classic approach used by many roguelikes, and it creates interesting, playable dungeons.
## Creating a Room Class
First, let's create a class to represent rectangular rooms:
```python
class RectangularRoom:
"""A rectangular room with its position and size"""
def __init__(self, x, y, width, height):
self.x1 = x
self.y1 = y
self.x2 = x + width
self.y2 = y + height
@property
def center(self):
"""Return the center coordinates of the room"""
center_x = (self.x1 + self.x2) // 2
center_y = (self.y1 + self.y2) // 2
return center_x, center_y
@property
def inner(self):
"""Return the inner area of the room as a tuple of slices
This property returns the area inside the walls.
We'll add 1 to min coordinates and subtract 1 from max coordinates.
"""
return self.x1 + 1, self.y1 + 1, self.x2 - 1, self.y2 - 1
def intersects(self, other):
"""Return True if this room overlaps with another RectangularRoom"""
return (
self.x1 <= other.x2
and self.x2 >= other.x1
and self.y1 <= other.y2
and self.y2 >= other.y1
)
```
## Implementing Tunnel Generation
Since McRogueFace doesn't include line-drawing algorithms, let's implement simple L-shaped tunnels:
```python
def tunnel_between(start, end):
"""Return an L-shaped tunnel between two points"""
x1, y1 = start
x2, y2 = end
# Randomly decide whether to go horizontal first or vertical first
if random.random() < 0.5:
# Horizontal, then vertical
corner_x = x2
corner_y = y1
else:
# Vertical, then horizontal
corner_x = x1
corner_y = y2
# Generate the coordinates
# First line: from start to corner
for x in range(min(x1, corner_x), max(x1, corner_x) + 1):
yield x, y1
for y in range(min(y1, corner_y), max(y1, corner_y) + 1):
yield corner_x, y
# Second line: from corner to end
for x in range(min(corner_x, x2), max(corner_x, x2) + 1):
yield x, corner_y
for y in range(min(corner_y, y2), max(corner_y, y2) + 1):
yield x2, y
```
## The Dungeon Generator
Now let's update our GameMap class to generate dungeons:
```python
import random
class GameMap:
"""Manages the game world"""
def __init__(self, width, height):
self.width = width
self.height = height
self.grid = None
self.entities = []
self.rooms = [] # Keep track of rooms for game logic
def generate_dungeon(
self,
max_rooms,
room_min_size,
room_max_size,
player
):
"""Generate a new dungeon map"""
# Start with everything as walls
self.fill_with_walls()
for r in range(max_rooms):
# Random width and height
room_width = random.randint(room_min_size, room_max_size)
room_height = random.randint(room_min_size, room_max_size)
# Random position without going out of bounds
x = random.randint(0, self.width - room_width - 1)
y = random.randint(0, self.height - room_height - 1)
# Create the room
new_room = RectangularRoom(x, y, room_width, room_height)
# Check if it intersects with any existing room
if any(new_room.intersects(other_room) for other_room in self.rooms):
continue # This room intersects, so go to the next attempt
# If we get here, it's a valid room
# Carve out this room
self.carve_room(new_room)
# Place the player in the center of the first room
if len(self.rooms) == 0:
player.x, player.y = new_room.center
if player._entity:
player._entity.x, player._entity.y = new_room.center
else:
# All rooms after the first:
# Tunnel between this room and the previous one
self.carve_tunnel(self.rooms[-1].center, new_room.center)
# Finally, append the new room to the list
self.rooms.append(new_room)
def carve_room(self, room):
"""Carve out a room"""
inner_x1, inner_y1, inner_x2, inner_y2 = room.inner
for y in range(inner_y1, inner_y2):
for x in range(inner_x1, inner_x2):
self.set_tile(x, y, walkable=True, transparent=True,
sprite_index=46, color=(50, 50, 50))
def carve_tunnel(self, start, end):
"""Carve a tunnel between two points"""
for x, y in tunnel_between(start, end):
self.set_tile(x, y, walkable=True, transparent=True,
sprite_index=46, color=(30, 30, 40)) # Slightly different color for tunnels
```
## Complete Code
Here's the complete `game.py` with procedural dungeon generation:
```python
import mcrfpy
import random
class GameObject:
"""Base class for all game objects"""
def __init__(self, x, y, sprite_index, color, name, blocks=False):
self.x = x
self.y = y
self.sprite_index = sprite_index
self.color = color
self.name = name
self.blocks = blocks
self._entity = None
self.grid = None
def attach_to_grid(self, grid):
"""Attach this game object to a McRogueFace grid"""
self.grid = grid
self._entity = mcrfpy.Entity(x=self.x, y=self.y, grid=grid)
self._entity.sprite_index = self.sprite_index
self._entity.color = mcrfpy.Color(*self.color)
def move(self, dx, dy):
"""Move by the given amount"""
if not self.grid:
return
self.x += dx
self.y += dy
if self._entity:
self._entity.x = self.x
self._entity.y = self.y
class RectangularRoom:
"""A rectangular room with its position and size"""
def __init__(self, x, y, width, height):
self.x1 = x
self.y1 = y
self.x2 = x + width
self.y2 = y + height
@property
def center(self):
"""Return the center coordinates of the room"""
center_x = (self.x1 + self.x2) // 2
center_y = (self.y1 + self.y2) // 2
return center_x, center_y
@property
def inner(self):
"""Return the inner area of the room"""
return self.x1 + 1, self.y1 + 1, self.x2 - 1, self.y2 - 1
def intersects(self, other):
"""Return True if this room overlaps with another"""
return (
self.x1 <= other.x2
and self.x2 >= other.x1
and self.y1 <= other.y2
and self.y2 >= other.y1
)
def tunnel_between(start, end):
"""Return an L-shaped tunnel between two points"""
x1, y1 = start
x2, y2 = end
if random.random() < 0.5:
corner_x = x2
corner_y = y1
else:
corner_x = x1
corner_y = y2
# Generate the coordinates
for x in range(min(x1, corner_x), max(x1, corner_x) + 1):
yield x, y1
for y in range(min(y1, corner_y), max(y1, corner_y) + 1):
yield corner_x, y
for x in range(min(corner_x, x2), max(corner_x, x2) + 1):
yield x, corner_y
for y in range(min(corner_y, y2), max(corner_y, y2) + 1):
yield x2, y
class GameMap:
"""Manages the game world"""
def __init__(self, width, height):
self.width = width
self.height = height
self.grid = None
self.entities = []
self.rooms = []
def create_grid(self, tileset):
"""Create the McRogueFace grid"""
self.grid = mcrfpy.Grid(grid_x=self.width, grid_y=self.height, texture=tileset)
self.grid.position = (100, 100)
self.grid.size = (800, 480)
return self.grid
def fill_with_walls(self):
"""Fill the entire map with wall tiles"""
for y in range(self.height):
for x in range(self.width):
self.set_tile(x, y, walkable=False, transparent=False,
sprite_index=35, color=(100, 100, 100))
def set_tile(self, x, y, walkable, transparent, sprite_index, color):
"""Set properties for a specific tile"""
if 0 <= x < self.width and 0 <= y < self.height:
cell = self.grid.at(x, y)
cell.walkable = walkable
cell.transparent = transparent
cell.sprite_index = sprite_index
cell.color = mcrfpy.Color(*color)
def generate_dungeon(self, max_rooms, room_min_size, room_max_size, player):
"""Generate a new dungeon map"""
self.fill_with_walls()
for r in range(max_rooms):
room_width = random.randint(room_min_size, room_max_size)
room_height = random.randint(room_min_size, room_max_size)
x = random.randint(0, self.width - room_width - 1)
y = random.randint(0, self.height - room_height - 1)
new_room = RectangularRoom(x, y, room_width, room_height)
if any(new_room.intersects(other_room) for other_room in self.rooms):
continue
self.carve_room(new_room)
if len(self.rooms) == 0:
player.x, player.y = new_room.center
if player._entity:
player._entity.x, player._entity.y = new_room.center
else:
self.carve_tunnel(self.rooms[-1].center, new_room.center)
self.rooms.append(new_room)
def carve_room(self, room):
"""Carve out a room"""
inner_x1, inner_y1, inner_x2, inner_y2 = room.inner
for y in range(inner_y1, inner_y2):
for x in range(inner_x1, inner_x2):
self.set_tile(x, y, walkable=True, transparent=True,
sprite_index=46, color=(50, 50, 50))
def carve_tunnel(self, start, end):
"""Carve a tunnel between two points"""
for x, y in tunnel_between(start, end):
self.set_tile(x, y, walkable=True, transparent=True,
sprite_index=46, color=(30, 30, 40))
def is_blocked(self, x, y):
"""Check if a tile blocks movement"""
if x < 0 or x >= self.width or y < 0 or y >= self.height:
return True
if not self.grid.at(x, y).walkable:
return True
for entity in self.entities:
if entity.blocks and entity.x == x and entity.y == y:
return True
return False
def add_entity(self, entity):
"""Add a GameObject to the map"""
self.entities.append(entity)
entity.attach_to_grid(self.grid)
class Engine:
"""Main game engine"""
def __init__(self):
self.game_map = None
self.player = None
self.entities = []
mcrfpy.createScene("game")
mcrfpy.setScene("game")
window = mcrfpy.Window.get()
window.title = "McRogueFace Roguelike - Part 3"
self.ui = mcrfpy.sceneUI("game")
background = mcrfpy.Frame(0, 0, 1024, 768)
background.fill_color = mcrfpy.Color(0, 0, 0)
self.ui.append(background)
self.tileset = mcrfpy.Texture("assets/sprites/ascii_tileset.png", 16, 16)
self.setup_game()
self.setup_input()
self.setup_ui()
def setup_game(self):
"""Initialize the game world"""
self.game_map = GameMap(80, 45)
grid = self.game_map.create_grid(self.tileset)
self.ui.append(grid)
# Create player (before dungeon generation)
self.player = GameObject(0, 0, 64, (255, 255, 255), "Player", blocks=True)
# Generate the dungeon
self.game_map.generate_dungeon(
max_rooms=30,
room_min_size=6,
room_max_size=10,
player=self.player
)
# Add player to map
self.game_map.add_entity(self.player)
# Add some monsters in random rooms
for i in range(5):
if i < len(self.game_map.rooms) - 1: # Don't spawn in first room
room = self.game_map.rooms[i + 1]
x, y = room.center
# Create an orc
orc = GameObject(x, y, 111, (63, 127, 63), "Orc", blocks=True)
self.game_map.add_entity(orc)
self.entities.append(orc)
def handle_movement(self, dx, dy):
"""Handle player movement"""
new_x = self.player.x + dx
new_y = self.player.y + dy
if not self.game_map.is_blocked(new_x, new_y):
self.player.move(dx, dy)
def setup_input(self):
"""Setup keyboard input handling"""
def handle_keys(key, state):
if state != "start":
return
movement = {
"Up": (0, -1), "Down": (0, 1),
"Left": (-1, 0), "Right": (1, 0),
"Num7": (-1, -1), "Num8": (0, -1), "Num9": (1, -1),
"Num4": (-1, 0), "Num6": (1, 0),
"Num1": (-1, 1), "Num2": (0, 1), "Num3": (1, 1),
}
if key in movement:
dx, dy = movement[key]
self.handle_movement(dx, dy)
elif key == "Escape":
mcrfpy.setScene(None)
elif key == "Space":
# Regenerate the dungeon
self.regenerate_dungeon()
mcrfpy.keypressScene(handle_keys)
def regenerate_dungeon(self):
"""Generate a new dungeon"""
# Clear existing entities
self.game_map.entities.clear()
self.game_map.rooms.clear()
self.entities.clear()
# Clear the entity list in the grid
if self.game_map.grid:
self.game_map.grid.entities.clear()
# Regenerate
self.game_map.generate_dungeon(
max_rooms=30,
room_min_size=6,
room_max_size=10,
player=self.player
)
# Re-add player
self.game_map.add_entity(self.player)
# Add new monsters
for i in range(5):
if i < len(self.game_map.rooms) - 1:
room = self.game_map.rooms[i + 1]
x, y = room.center
orc = GameObject(x, y, 111, (63, 127, 63), "Orc", blocks=True)
self.game_map.add_entity(orc)
self.entities.append(orc)
def setup_ui(self):
"""Setup UI elements"""
title = mcrfpy.Caption("Procedural Dungeon Generation", 512, 30)
title.font_size = 24
title.fill_color = mcrfpy.Color(255, 255, 100)
self.ui.append(title)
instructions = mcrfpy.Caption("Arrow keys to move, SPACE to regenerate, ESC to quit", 512, 60)
instructions.font_size = 16
instructions.fill_color = mcrfpy.Color(200, 200, 200)
self.ui.append(instructions)
# Create and run the game
engine = Engine()
print("Part 3: Procedural Dungeon Generation!")
print("Press SPACE to generate a new dungeon")
```
## Understanding the Algorithm
Our dungeon generation algorithm is simple but effective:
1. **Start with solid walls** - The entire map begins filled with wall tiles
2. **Try to place rooms** - Generate random rooms and check for overlaps
3. **Connect with tunnels** - Each new room connects to the previous one
4. **Place entities** - The player starts in the first room, monsters in others
### Room Placement
The algorithm attempts to place `max_rooms` rooms, but may place fewer if many attempts result in overlapping rooms. This is called "rejection sampling" - we generate random rooms and reject ones that don't fit.
### Tunnel Design
Our L-shaped tunnels are simple but effective. They either go:
- Horizontal first, then vertical
- Vertical first, then horizontal
This creates variety while ensuring all rooms are connected.
## Experimenting with Parameters
Try adjusting these parameters to create different dungeon styles:
```python
# Sparse dungeon with large rooms
self.game_map.generate_dungeon(
max_rooms=10,
room_min_size=10,
room_max_size=15,
player=self.player
)
# Dense dungeon with small rooms
self.game_map.generate_dungeon(
max_rooms=50,
room_min_size=4,
room_max_size=6,
player=self.player
)
```
## Visual Enhancements
Notice how we gave tunnels a slightly different color:
- Rooms: `color=(50, 50, 50)` - Medium gray
- Tunnels: `color=(30, 30, 40)` - Darker with blue tint
This subtle difference helps players understand the dungeon layout.
## Exercises
1. **Different Room Shapes**: Create circular or cross-shaped rooms
2. **Better Tunnel Routing**: Implement A* pathfinding for more natural tunnels
3. **Room Types**: Create special rooms (treasure rooms, trap rooms)
4. **Dungeon Themes**: Use different tile sets and colors for different dungeon levels
## What's Next?
In Part 4, we'll implement Field of View (FOV) so the player can only see parts of the dungeon they've explored. This will add mystery and atmosphere to our procedurally generated dungeons!
Our dungeon generator is now creating unique, playable levels every time. The foundation of a true roguelike is taking shape!

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@ -1,312 +0,0 @@
import mcrfpy
import random
class GameObject:
"""Base class for all game objects"""
def __init__(self, x, y, sprite_index, color, name, blocks=False):
self.x = x
self.y = y
self.sprite_index = sprite_index
self.color = color
self.name = name
self.blocks = blocks
self._entity = None
self.grid = None
def attach_to_grid(self, grid):
"""Attach this game object to a McRogueFace grid"""
self.grid = grid
self._entity = mcrfpy.Entity(x=self.x, y=self.y, grid=grid)
self._entity.sprite_index = self.sprite_index
self._entity.color = mcrfpy.Color(*self.color)
def move(self, dx, dy):
"""Move by the given amount"""
if not self.grid:
return
self.x += dx
self.y += dy
if self._entity:
self._entity.x = self.x
self._entity.y = self.y
class RectangularRoom:
"""A rectangular room with its position and size"""
def __init__(self, x, y, width, height):
self.x1 = x
self.y1 = y
self.x2 = x + width
self.y2 = y + height
@property
def center(self):
"""Return the center coordinates of the room"""
center_x = (self.x1 + self.x2) // 2
center_y = (self.y1 + self.y2) // 2
return center_x, center_y
@property
def inner(self):
"""Return the inner area of the room"""
return self.x1 + 1, self.y1 + 1, self.x2 - 1, self.y2 - 1
def intersects(self, other):
"""Return True if this room overlaps with another"""
return (
self.x1 <= other.x2
and self.x2 >= other.x1
and self.y1 <= other.y2
and self.y2 >= other.y1
)
def tunnel_between(start, end):
"""Return an L-shaped tunnel between two points"""
x1, y1 = start
x2, y2 = end
if random.random() < 0.5:
corner_x = x2
corner_y = y1
else:
corner_x = x1
corner_y = y2
# Generate the coordinates
for x in range(min(x1, corner_x), max(x1, corner_x) + 1):
yield x, y1
for y in range(min(y1, corner_y), max(y1, corner_y) + 1):
yield corner_x, y
for x in range(min(corner_x, x2), max(corner_x, x2) + 1):
yield x, corner_y
for y in range(min(corner_y, y2), max(corner_y, y2) + 1):
yield x2, y
class GameMap:
"""Manages the game world"""
def __init__(self, width, height):
self.width = width
self.height = height
self.grid = None
self.entities = []
self.rooms = []
def create_grid(self, tileset):
"""Create the McRogueFace grid"""
self.grid = mcrfpy.Grid(grid_x=self.width, grid_y=self.height, texture=tileset)
self.grid.position = (100, 100)
self.grid.size = (800, 480)
return self.grid
def fill_with_walls(self):
"""Fill the entire map with wall tiles"""
for y in range(self.height):
for x in range(self.width):
self.set_tile(x, y, walkable=False, transparent=False,
sprite_index=35, color=(100, 100, 100))
def set_tile(self, x, y, walkable, transparent, sprite_index, color):
"""Set properties for a specific tile"""
if 0 <= x < self.width and 0 <= y < self.height:
cell = self.grid.at(x, y)
cell.walkable = walkable
cell.transparent = transparent
cell.sprite_index = sprite_index
cell.color = mcrfpy.Color(*color)
def generate_dungeon(self, max_rooms, room_min_size, room_max_size, player):
"""Generate a new dungeon map"""
self.fill_with_walls()
for r in range(max_rooms):
room_width = random.randint(room_min_size, room_max_size)
room_height = random.randint(room_min_size, room_max_size)
x = random.randint(0, self.width - room_width - 1)
y = random.randint(0, self.height - room_height - 1)
new_room = RectangularRoom(x, y, room_width, room_height)
if any(new_room.intersects(other_room) for other_room in self.rooms):
continue
self.carve_room(new_room)
if len(self.rooms) == 0:
player.x, player.y = new_room.center
if player._entity:
player._entity.x, player._entity.y = new_room.center
else:
self.carve_tunnel(self.rooms[-1].center, new_room.center)
self.rooms.append(new_room)
def carve_room(self, room):
"""Carve out a room"""
inner_x1, inner_y1, inner_x2, inner_y2 = room.inner
for y in range(inner_y1, inner_y2):
for x in range(inner_x1, inner_x2):
self.set_tile(x, y, walkable=True, transparent=True,
sprite_index=46, color=(50, 50, 50))
def carve_tunnel(self, start, end):
"""Carve a tunnel between two points"""
for x, y in tunnel_between(start, end):
self.set_tile(x, y, walkable=True, transparent=True,
sprite_index=46, color=(30, 30, 40))
def is_blocked(self, x, y):
"""Check if a tile blocks movement"""
if x < 0 or x >= self.width or y < 0 or y >= self.height:
return True
if not self.grid.at(x, y).walkable:
return True
for entity in self.entities:
if entity.blocks and entity.x == x and entity.y == y:
return True
return False
def add_entity(self, entity):
"""Add a GameObject to the map"""
self.entities.append(entity)
entity.attach_to_grid(self.grid)
class Engine:
"""Main game engine"""
def __init__(self):
self.game_map = None
self.player = None
self.entities = []
mcrfpy.createScene("game")
mcrfpy.setScene("game")
window = mcrfpy.Window.get()
window.title = "McRogueFace Roguelike - Part 3"
self.ui = mcrfpy.sceneUI("game")
background = mcrfpy.Frame(0, 0, 1024, 768)
background.fill_color = mcrfpy.Color(0, 0, 0)
self.ui.append(background)
self.tileset = mcrfpy.Texture("assets/sprites/ascii_tileset.png", 16, 16)
self.setup_game()
self.setup_input()
self.setup_ui()
def setup_game(self):
"""Initialize the game world"""
self.game_map = GameMap(80, 45)
grid = self.game_map.create_grid(self.tileset)
self.ui.append(grid)
# Create player (before dungeon generation)
self.player = GameObject(0, 0, 64, (255, 255, 255), "Player", blocks=True)
# Generate the dungeon
self.game_map.generate_dungeon(
max_rooms=30,
room_min_size=6,
room_max_size=10,
player=self.player
)
# Add player to map
self.game_map.add_entity(self.player)
# Add some monsters in random rooms
for i in range(5):
if i < len(self.game_map.rooms) - 1: # Don't spawn in first room
room = self.game_map.rooms[i + 1]
x, y = room.center
# Create an orc
orc = GameObject(x, y, 111, (63, 127, 63), "Orc", blocks=True)
self.game_map.add_entity(orc)
self.entities.append(orc)
def handle_movement(self, dx, dy):
"""Handle player movement"""
new_x = self.player.x + dx
new_y = self.player.y + dy
if not self.game_map.is_blocked(new_x, new_y):
self.player.move(dx, dy)
def setup_input(self):
"""Setup keyboard input handling"""
def handle_keys(key, state):
if state != "start":
return
movement = {
"Up": (0, -1), "Down": (0, 1),
"Left": (-1, 0), "Right": (1, 0),
"Num7": (-1, -1), "Num8": (0, -1), "Num9": (1, -1),
"Num4": (-1, 0), "Num6": (1, 0),
"Num1": (-1, 1), "Num2": (0, 1), "Num3": (1, 1),
}
if key in movement:
dx, dy = movement[key]
self.handle_movement(dx, dy)
elif key == "Escape":
mcrfpy.setScene(None)
elif key == "Space":
# Regenerate the dungeon
self.regenerate_dungeon()
mcrfpy.keypressScene(handle_keys)
def regenerate_dungeon(self):
"""Generate a new dungeon"""
# Clear existing entities
self.game_map.entities.clear()
self.game_map.rooms.clear()
self.entities.clear()
# Clear the entity list in the grid
if self.game_map.grid:
self.game_map.grid.entities.clear()
# Regenerate
self.game_map.generate_dungeon(
max_rooms=30,
room_min_size=6,
room_max_size=10,
player=self.player
)
# Re-add player
self.game_map.add_entity(self.player)
# Add new monsters
for i in range(5):
if i < len(self.game_map.rooms) - 1:
room = self.game_map.rooms[i + 1]
x, y = room.center
orc = GameObject(x, y, 111, (63, 127, 63), "Orc", blocks=True)
self.game_map.add_entity(orc)
self.entities.append(orc)
def setup_ui(self):
"""Setup UI elements"""
title = mcrfpy.Caption("Procedural Dungeon Generation", 512, 30)
title.font_size = 24
title.fill_color = mcrfpy.Color(255, 255, 100)
self.ui.append(title)
instructions = mcrfpy.Caption("Arrow keys to move, SPACE to regenerate, ESC to quit", 512, 60)
instructions.font_size = 16
instructions.fill_color = mcrfpy.Color(200, 200, 200)
self.ui.append(instructions)
# Create and run the game
engine = Engine()
print("Part 3: Procedural Dungeon Generation!")
print("Press SPACE to generate a new dungeon")

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@ -1,520 +0,0 @@
# Part 4 - Field of View
One of the defining features of roguelikes is exploration and discovery. In Part 3, we could see the entire dungeon at once. Now we'll implement Field of View (FOV) so players can only see what their character can actually see, adding mystery and tactical depth to our game.
## Understanding Field of View
Field of View creates three distinct visibility states for each tile:
1. **Visible**: Currently in the player's line of sight
2. **Explored**: Previously seen but not currently visible
3. **Unexplored**: Never seen (completely hidden)
This creates the classic "fog of war" effect where you remember the layout of areas you've explored, but can't see current enemy positions unless they're in your view.
## McRogueFace's FOV System
Good news! McRogueFace includes built-in FOV support through its C++ engine. We just need to enable and configure it. The engine uses an efficient shadowcasting algorithm that provides smooth, realistic line-of-sight calculations.
Let's update our code to use FOV:
```python
class GameObject:
"""Base class for all game objects"""
def __init__(self, x, y, sprite_index, color, name, blocks=False):
self.x = x
self.y = y
self.sprite_index = sprite_index
self.color = color
self.name = name
self.blocks = blocks
self._entity = None
self.grid = None
def attach_to_grid(self, grid):
"""Attach this game object to a McRogueFace grid"""
self.grid = grid
self._entity = mcrfpy.Entity(x=self.x, y=self.y, grid=grid)
self._entity.sprite_index = self.sprite_index
self._entity.color = mcrfpy.Color(*self.color)
def move(self, dx, dy):
"""Move by the given amount"""
if not self.grid:
return
self.x += dx
self.y += dy
if self._entity:
self._entity.x = self.x
self._entity.y = self.y
# Update FOV when player moves
if self.name == "Player":
self.update_fov()
def update_fov(self):
"""Update field of view from this entity's position"""
if self._entity and self.grid:
self._entity.update_fov(radius=8)
```
## Configuring Visibility Rendering
McRogueFace automatically handles the rendering of visible/explored/unexplored tiles. We need to set up our grid to use perspective-based rendering:
```python
class GameMap:
"""Manages the game world"""
def create_grid(self, tileset):
"""Create the McRogueFace grid"""
self.grid = mcrfpy.Grid(grid_x=self.width, grid_y=self.height, texture=tileset)
self.grid.position = (100, 100)
self.grid.size = (800, 480)
# Enable perspective rendering (0 = first entity = player)
self.grid.perspective = 0
return self.grid
```
## Visual Appearance Configuration
Let's define how our tiles look in different visibility states:
```python
# Color configurations for visibility states
COLORS_VISIBLE = {
'wall': (100, 100, 100), # Light gray
'floor': (50, 50, 50), # Dark gray
'tunnel': (30, 30, 40), # Dark blue-gray
}
COLORS_EXPLORED = {
'wall': (50, 50, 70), # Darker, bluish
'floor': (20, 20, 30), # Very dark
'tunnel': (15, 15, 25), # Almost black
}
# Update the tile-setting methods to store the tile type
def set_tile(self, x, y, walkable, transparent, sprite_index, tile_type):
"""Set properties for a specific tile"""
if 0 <= x < self.width and 0 <= y < self.height:
cell = self.grid.at(x, y)
cell.walkable = walkable
cell.transparent = transparent
cell.sprite_index = sprite_index
# Store both visible and explored colors
cell.color = mcrfpy.Color(*COLORS_VISIBLE[tile_type])
# The engine will automatically darken explored tiles
```
## Complete Implementation
Here's the complete updated `game.py` with FOV:
```python
import mcrfpy
import random
# Color configurations for visibility
COLORS_VISIBLE = {
'wall': (100, 100, 100),
'floor': (50, 50, 50),
'tunnel': (30, 30, 40),
}
class GameObject:
"""Base class for all game objects"""
def __init__(self, x, y, sprite_index, color, name, blocks=False):
self.x = x
self.y = y
self.sprite_index = sprite_index
self.color = color
self.name = name
self.blocks = blocks
self._entity = None
self.grid = None
def attach_to_grid(self, grid):
"""Attach this game object to a McRogueFace grid"""
self.grid = grid
self._entity = mcrfpy.Entity(x=self.x, y=self.y, grid=grid)
self._entity.sprite_index = self.sprite_index
self._entity.color = mcrfpy.Color(*self.color)
def move(self, dx, dy):
"""Move by the given amount"""
if not self.grid:
return
self.x += dx
self.y += dy
if self._entity:
self._entity.x = self.x
self._entity.y = self.y
# Update FOV when player moves
if self.name == "Player":
self.update_fov()
def update_fov(self):
"""Update field of view from this entity's position"""
if self._entity and self.grid:
self._entity.update_fov(radius=8)
class RectangularRoom:
"""A rectangular room with its position and size"""
def __init__(self, x, y, width, height):
self.x1 = x
self.y1 = y
self.x2 = x + width
self.y2 = y + height
@property
def center(self):
center_x = (self.x1 + self.x2) // 2
center_y = (self.y1 + self.y2) // 2
return center_x, center_y
@property
def inner(self):
return self.x1 + 1, self.y1 + 1, self.x2 - 1, self.y2 - 1
def intersects(self, other):
return (
self.x1 <= other.x2
and self.x2 >= other.x1
and self.y1 <= other.y2
and self.y2 >= other.y1
)
def tunnel_between(start, end):
"""Return an L-shaped tunnel between two points"""
x1, y1 = start
x2, y2 = end
if random.random() < 0.5:
corner_x = x2
corner_y = y1
else:
corner_x = x1
corner_y = y2
for x in range(min(x1, corner_x), max(x1, corner_x) + 1):
yield x, y1
for y in range(min(y1, corner_y), max(y1, corner_y) + 1):
yield corner_x, y
for x in range(min(corner_x, x2), max(corner_x, x2) + 1):
yield x, corner_y
for y in range(min(corner_y, y2), max(corner_y, y2) + 1):
yield x2, y
class GameMap:
"""Manages the game world"""
def __init__(self, width, height):
self.width = width
self.height = height
self.grid = None
self.entities = []
self.rooms = []
def create_grid(self, tileset):
"""Create the McRogueFace grid"""
self.grid = mcrfpy.Grid(grid_x=self.width, grid_y=self.height, texture=tileset)
self.grid.position = (100, 100)
self.grid.size = (800, 480)
# Enable perspective rendering (0 = first entity = player)
self.grid.perspective = 0
return self.grid
def fill_with_walls(self):
"""Fill the entire map with wall tiles"""
for y in range(self.height):
for x in range(self.width):
self.set_tile(x, y, walkable=False, transparent=False,
sprite_index=35, tile_type='wall')
def set_tile(self, x, y, walkable, transparent, sprite_index, tile_type):
"""Set properties for a specific tile"""
if 0 <= x < self.width and 0 <= y < self.height:
cell = self.grid.at(x, y)
cell.walkable = walkable
cell.transparent = transparent
cell.sprite_index = sprite_index
cell.color = mcrfpy.Color(*COLORS_VISIBLE[tile_type])
def generate_dungeon(self, max_rooms, room_min_size, room_max_size, player):
"""Generate a new dungeon map"""
self.fill_with_walls()
for r in range(max_rooms):
room_width = random.randint(room_min_size, room_max_size)
room_height = random.randint(room_min_size, room_max_size)
x = random.randint(0, self.width - room_width - 1)
y = random.randint(0, self.height - room_height - 1)
new_room = RectangularRoom(x, y, room_width, room_height)
if any(new_room.intersects(other_room) for other_room in self.rooms):
continue
self.carve_room(new_room)
if len(self.rooms) == 0:
player.x, player.y = new_room.center
if player._entity:
player._entity.x, player._entity.y = new_room.center
else:
self.carve_tunnel(self.rooms[-1].center, new_room.center)
self.rooms.append(new_room)
def carve_room(self, room):
"""Carve out a room"""
inner_x1, inner_y1, inner_x2, inner_y2 = room.inner
for y in range(inner_y1, inner_y2):
for x in range(inner_x1, inner_x2):
self.set_tile(x, y, walkable=True, transparent=True,
sprite_index=46, tile_type='floor')
def carve_tunnel(self, start, end):
"""Carve a tunnel between two points"""
for x, y in tunnel_between(start, end):
self.set_tile(x, y, walkable=True, transparent=True,
sprite_index=46, tile_type='tunnel')
def is_blocked(self, x, y):
"""Check if a tile blocks movement"""
if x < 0 or x >= self.width or y < 0 or y >= self.height:
return True
if not self.grid.at(x, y).walkable:
return True
for entity in self.entities:
if entity.blocks and entity.x == x and entity.y == y:
return True
return False
def add_entity(self, entity):
"""Add a GameObject to the map"""
self.entities.append(entity)
entity.attach_to_grid(self.grid)
class Engine:
"""Main game engine"""
def __init__(self):
self.game_map = None
self.player = None
self.entities = []
self.fov_radius = 8
mcrfpy.createScene("game")
mcrfpy.setScene("game")
window = mcrfpy.Window.get()
window.title = "McRogueFace Roguelike - Part 4"
self.ui = mcrfpy.sceneUI("game")
background = mcrfpy.Frame(0, 0, 1024, 768)
background.fill_color = mcrfpy.Color(0, 0, 0)
self.ui.append(background)
self.tileset = mcrfpy.Texture("assets/sprites/ascii_tileset.png", 16, 16)
self.setup_game()
self.setup_input()
self.setup_ui()
def setup_game(self):
"""Initialize the game world"""
self.game_map = GameMap(80, 45)
grid = self.game_map.create_grid(self.tileset)
self.ui.append(grid)
# Create player
self.player = GameObject(0, 0, 64, (255, 255, 255), "Player", blocks=True)
# Generate the dungeon
self.game_map.generate_dungeon(
max_rooms=30,
room_min_size=6,
room_max_size=10,
player=self.player
)
# Add player to map
self.game_map.add_entity(self.player)
# Add monsters in random rooms
for i in range(10):
if i < len(self.game_map.rooms) - 1:
room = self.game_map.rooms[i + 1]
x, y = room.center
# Randomly offset from center
x += random.randint(-2, 2)
y += random.randint(-2, 2)
# Make sure position is walkable
if self.game_map.grid.at(x, y).walkable:
if i % 2 == 0:
# Create an orc
orc = GameObject(x, y, 111, (63, 127, 63), "Orc", blocks=True)
self.game_map.add_entity(orc)
self.entities.append(orc)
else:
# Create a troll
troll = GameObject(x, y, 84, (0, 127, 0), "Troll", blocks=True)
self.game_map.add_entity(troll)
self.entities.append(troll)
# Initial FOV calculation
self.player.update_fov()
def handle_movement(self, dx, dy):
"""Handle player movement"""
new_x = self.player.x + dx
new_y = self.player.y + dy
if not self.game_map.is_blocked(new_x, new_y):
self.player.move(dx, dy)
def setup_input(self):
"""Setup keyboard input handling"""
def handle_keys(key, state):
if state != "start":
return
movement = {
"Up": (0, -1), "Down": (0, 1),
"Left": (-1, 0), "Right": (1, 0),
"Num7": (-1, -1), "Num8": (0, -1), "Num9": (1, -1),
"Num4": (-1, 0), "Num6": (1, 0),
"Num1": (-1, 1), "Num2": (0, 1), "Num3": (1, 1),
}
if key in movement:
dx, dy = movement[key]
self.handle_movement(dx, dy)
elif key == "Escape":
mcrfpy.setScene(None)
elif key == "v":
# Toggle FOV on/off
if self.game_map.grid.perspective == 0:
self.game_map.grid.perspective = -1 # Omniscient
print("FOV disabled - omniscient view")
else:
self.game_map.grid.perspective = 0 # Player perspective
print("FOV enabled - player perspective")
elif key == "Plus" or key == "Equals":
# Increase FOV radius
self.fov_radius = min(self.fov_radius + 1, 20)
self.player._entity.update_fov(radius=self.fov_radius)
print(f"FOV radius: {self.fov_radius}")
elif key == "Minus":
# Decrease FOV radius
self.fov_radius = max(self.fov_radius - 1, 3)
self.player._entity.update_fov(radius=self.fov_radius)
print(f"FOV radius: {self.fov_radius}")
mcrfpy.keypressScene(handle_keys)
def setup_ui(self):
"""Setup UI elements"""
title = mcrfpy.Caption("Field of View", 512, 30)
title.font_size = 24
title.fill_color = mcrfpy.Color(255, 255, 100)
self.ui.append(title)
instructions = mcrfpy.Caption("Arrow keys to move | V to toggle FOV | +/- to adjust radius | ESC to quit", 512, 60)
instructions.font_size = 16
instructions.fill_color = mcrfpy.Color(200, 200, 200)
self.ui.append(instructions)
# FOV indicator
self.fov_text = mcrfpy.Caption(f"FOV Radius: {self.fov_radius}", 900, 100)
self.fov_text.font_size = 14
self.fov_text.fill_color = mcrfpy.Color(150, 200, 255)
self.ui.append(self.fov_text)
# Create and run the game
engine = Engine()
print("Part 4: Field of View!")
print("Press V to toggle FOV on/off")
print("Press +/- to adjust FOV radius")
```
## How FOV Works
McRogueFace's built-in FOV system uses a shadowcasting algorithm that:
1. **Casts rays** from the player's position to tiles within the radius
2. **Checks transparency** along each ray path
3. **Marks tiles as visible** if the ray reaches them unobstructed
4. **Remembers explored tiles** automatically
The engine handles all the complex calculations in C++ for optimal performance.
## Visibility States in Detail
### Visible Tiles
- Currently in the player's line of sight
- Rendered at full brightness
- Show current entity positions
### Explored Tiles
- Previously seen but not currently visible
- Rendered darker/muted
- Show remembered terrain but not entities
### Unexplored Tiles
- Never been in the player's FOV
- Rendered as black/invisible
- Complete mystery to the player
## FOV Parameters
You can customize FOV behavior:
```python
# Basic FOV update
entity.update_fov(radius=8)
# The grid's perspective property controls rendering:
grid.perspective = 0 # Use first entity's FOV (player)
grid.perspective = 1 # Use second entity's FOV
grid.perspective = -1 # Omniscient (no FOV, see everything)
```
## Performance Considerations
McRogueFace's C++ FOV implementation is highly optimized:
- Uses efficient shadowcasting algorithm
- Only recalculates when needed
- Handles large maps smoothly
- Automatically culls entities outside FOV
## Visual Polish
The engine automatically handles visual transitions:
- Smooth color changes between visibility states
- Entities fade in/out of view
- Explored areas remain visible but dimmed
## Exercises
1. **Variable Vision**: Give different entities different FOV radii
2. **Light Sources**: Create torches that expand local FOV
3. **Blind Spots**: Add pillars that create interesting shadows
4. **X-Ray Vision**: Temporary power-up to see through walls
## What's Next?
In Part 5, we'll place enemies throughout the dungeon and implement basic interactions. With FOV in place, enemies will appear and disappear as you explore, creating tension and surprise!
Field of View transforms our dungeon from a tactical puzzle into a mysterious world to explore. The fog of war adds atmosphere and gameplay depth that's essential to the roguelike experience.

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@ -1,334 +0,0 @@
import mcrfpy
import random
# Color configurations for visibility
COLORS_VISIBLE = {
'wall': (100, 100, 100),
'floor': (50, 50, 50),
'tunnel': (30, 30, 40),
}
class GameObject:
"""Base class for all game objects"""
def __init__(self, x, y, sprite_index, color, name, blocks=False):
self.x = x
self.y = y
self.sprite_index = sprite_index
self.color = color
self.name = name
self.blocks = blocks
self._entity = None
self.grid = None
def attach_to_grid(self, grid):
"""Attach this game object to a McRogueFace grid"""
self.grid = grid
self._entity = mcrfpy.Entity(x=self.x, y=self.y, grid=grid)
self._entity.sprite_index = self.sprite_index
self._entity.color = mcrfpy.Color(*self.color)
def move(self, dx, dy):
"""Move by the given amount"""
if not self.grid:
return
self.x += dx
self.y += dy
if self._entity:
self._entity.x = self.x
self._entity.y = self.y
# Update FOV when player moves
if self.name == "Player":
self.update_fov()
def update_fov(self):
"""Update field of view from this entity's position"""
if self._entity and self.grid:
self._entity.update_fov(radius=8)
class RectangularRoom:
"""A rectangular room with its position and size"""
def __init__(self, x, y, width, height):
self.x1 = x
self.y1 = y
self.x2 = x + width
self.y2 = y + height
@property
def center(self):
center_x = (self.x1 + self.x2) // 2
center_y = (self.y1 + self.y2) // 2
return center_x, center_y
@property
def inner(self):
return self.x1 + 1, self.y1 + 1, self.x2 - 1, self.y2 - 1
def intersects(self, other):
return (
self.x1 <= other.x2
and self.x2 >= other.x1
and self.y1 <= other.y2
and self.y2 >= other.y1
)
def tunnel_between(start, end):
"""Return an L-shaped tunnel between two points"""
x1, y1 = start
x2, y2 = end
if random.random() < 0.5:
corner_x = x2
corner_y = y1
else:
corner_x = x1
corner_y = y2
for x in range(min(x1, corner_x), max(x1, corner_x) + 1):
yield x, y1
for y in range(min(y1, corner_y), max(y1, corner_y) + 1):
yield corner_x, y
for x in range(min(corner_x, x2), max(corner_x, x2) + 1):
yield x, corner_y
for y in range(min(corner_y, y2), max(corner_y, y2) + 1):
yield x2, y
class GameMap:
"""Manages the game world"""
def __init__(self, width, height):
self.width = width
self.height = height
self.grid = None
self.entities = []
self.rooms = []
def create_grid(self, tileset):
"""Create the McRogueFace grid"""
self.grid = mcrfpy.Grid(grid_x=self.width, grid_y=self.height, texture=tileset)
self.grid.position = (100, 100)
self.grid.size = (800, 480)
# Enable perspective rendering (0 = first entity = player)
self.grid.perspective = 0
return self.grid
def fill_with_walls(self):
"""Fill the entire map with wall tiles"""
for y in range(self.height):
for x in range(self.width):
self.set_tile(x, y, walkable=False, transparent=False,
sprite_index=35, tile_type='wall')
def set_tile(self, x, y, walkable, transparent, sprite_index, tile_type):
"""Set properties for a specific tile"""
if 0 <= x < self.width and 0 <= y < self.height:
cell = self.grid.at(x, y)
cell.walkable = walkable
cell.transparent = transparent
cell.sprite_index = sprite_index
cell.color = mcrfpy.Color(*COLORS_VISIBLE[tile_type])
def generate_dungeon(self, max_rooms, room_min_size, room_max_size, player):
"""Generate a new dungeon map"""
self.fill_with_walls()
for r in range(max_rooms):
room_width = random.randint(room_min_size, room_max_size)
room_height = random.randint(room_min_size, room_max_size)
x = random.randint(0, self.width - room_width - 1)
y = random.randint(0, self.height - room_height - 1)
new_room = RectangularRoom(x, y, room_width, room_height)
if any(new_room.intersects(other_room) for other_room in self.rooms):
continue
self.carve_room(new_room)
if len(self.rooms) == 0:
player.x, player.y = new_room.center
if player._entity:
player._entity.x, player._entity.y = new_room.center
else:
self.carve_tunnel(self.rooms[-1].center, new_room.center)
self.rooms.append(new_room)
def carve_room(self, room):
"""Carve out a room"""
inner_x1, inner_y1, inner_x2, inner_y2 = room.inner
for y in range(inner_y1, inner_y2):
for x in range(inner_x1, inner_x2):
self.set_tile(x, y, walkable=True, transparent=True,
sprite_index=46, tile_type='floor')
def carve_tunnel(self, start, end):
"""Carve a tunnel between two points"""
for x, y in tunnel_between(start, end):
self.set_tile(x, y, walkable=True, transparent=True,
sprite_index=46, tile_type='tunnel')
def is_blocked(self, x, y):
"""Check if a tile blocks movement"""
if x < 0 or x >= self.width or y < 0 or y >= self.height:
return True
if not self.grid.at(x, y).walkable:
return True
for entity in self.entities:
if entity.blocks and entity.x == x and entity.y == y:
return True
return False
def add_entity(self, entity):
"""Add a GameObject to the map"""
self.entities.append(entity)
entity.attach_to_grid(self.grid)
class Engine:
"""Main game engine"""
def __init__(self):
self.game_map = None
self.player = None
self.entities = []
self.fov_radius = 8
mcrfpy.createScene("game")
mcrfpy.setScene("game")
window = mcrfpy.Window.get()
window.title = "McRogueFace Roguelike - Part 4"
self.ui = mcrfpy.sceneUI("game")
background = mcrfpy.Frame(0, 0, 1024, 768)
background.fill_color = mcrfpy.Color(0, 0, 0)
self.ui.append(background)
self.tileset = mcrfpy.Texture("assets/sprites/ascii_tileset.png", 16, 16)
self.setup_game()
self.setup_input()
self.setup_ui()
def setup_game(self):
"""Initialize the game world"""
self.game_map = GameMap(80, 45)
grid = self.game_map.create_grid(self.tileset)
self.ui.append(grid)
# Create player
self.player = GameObject(0, 0, 64, (255, 255, 255), "Player", blocks=True)
# Generate the dungeon
self.game_map.generate_dungeon(
max_rooms=30,
room_min_size=6,
room_max_size=10,
player=self.player
)
# Add player to map
self.game_map.add_entity(self.player)
# Add monsters in random rooms
for i in range(10):
if i < len(self.game_map.rooms) - 1:
room = self.game_map.rooms[i + 1]
x, y = room.center
# Randomly offset from center
x += random.randint(-2, 2)
y += random.randint(-2, 2)
# Make sure position is walkable
if self.game_map.grid.at(x, y).walkable:
if i % 2 == 0:
# Create an orc
orc = GameObject(x, y, 111, (63, 127, 63), "Orc", blocks=True)
self.game_map.add_entity(orc)
self.entities.append(orc)
else:
# Create a troll
troll = GameObject(x, y, 84, (0, 127, 0), "Troll", blocks=True)
self.game_map.add_entity(troll)
self.entities.append(troll)
# Initial FOV calculation
self.player.update_fov()
def handle_movement(self, dx, dy):
"""Handle player movement"""
new_x = self.player.x + dx
new_y = self.player.y + dy
if not self.game_map.is_blocked(new_x, new_y):
self.player.move(dx, dy)
def setup_input(self):
"""Setup keyboard input handling"""
def handle_keys(key, state):
if state != "start":
return
movement = {
"Up": (0, -1), "Down": (0, 1),
"Left": (-1, 0), "Right": (1, 0),
"Num7": (-1, -1), "Num8": (0, -1), "Num9": (1, -1),
"Num4": (-1, 0), "Num6": (1, 0),
"Num1": (-1, 1), "Num2": (0, 1), "Num3": (1, 1),
}
if key in movement:
dx, dy = movement[key]
self.handle_movement(dx, dy)
elif key == "Escape":
mcrfpy.setScene(None)
elif key == "v":
# Toggle FOV on/off
if self.game_map.grid.perspective == 0:
self.game_map.grid.perspective = -1 # Omniscient
print("FOV disabled - omniscient view")
else:
self.game_map.grid.perspective = 0 # Player perspective
print("FOV enabled - player perspective")
elif key == "Plus" or key == "Equals":
# Increase FOV radius
self.fov_radius = min(self.fov_radius + 1, 20)
self.player._entity.update_fov(radius=self.fov_radius)
print(f"FOV radius: {self.fov_radius}")
elif key == "Minus":
# Decrease FOV radius
self.fov_radius = max(self.fov_radius - 1, 3)
self.player._entity.update_fov(radius=self.fov_radius)
print(f"FOV radius: {self.fov_radius}")
mcrfpy.keypressScene(handle_keys)
def setup_ui(self):
"""Setup UI elements"""
title = mcrfpy.Caption("Field of View", 512, 30)
title.font_size = 24
title.fill_color = mcrfpy.Color(255, 255, 100)
self.ui.append(title)
instructions = mcrfpy.Caption("Arrow keys to move | V to toggle FOV | +/- to adjust radius | ESC to quit", 512, 60)
instructions.font_size = 16
instructions.fill_color = mcrfpy.Color(200, 200, 200)
self.ui.append(instructions)
# FOV indicator
self.fov_text = mcrfpy.Caption(f"FOV Radius: {self.fov_radius}", 900, 100)
self.fov_text.font_size = 14
self.fov_text.fill_color = mcrfpy.Color(150, 200, 255)
self.ui.append(self.fov_text)
# Create and run the game
engine = Engine()
print("Part 4: Field of View!")
print("Press V to toggle FOV on/off")
print("Press +/- to adjust FOV radius")

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@ -1,570 +0,0 @@
# Part 5 - Placing Enemies and Kicking Them (Harmlessly)
Now that we have Field of View working, it's time to populate our dungeon with enemies! In this part, we'll:
- Place enemies randomly in rooms
- Implement entity-to-entity collision detection
- Create basic interactions (bumping into enemies)
- Set the stage for combat in Part 6
## Enemy Spawning System
First, let's create a system to spawn enemies in our dungeon rooms. We'll avoid placing them in the first room (where the player starts) to give players a safe starting area.
```python
def spawn_enemies_in_room(room, game_map, max_enemies=2):
"""Spawn between 0 and max_enemies in a room"""
import random
number_of_enemies = random.randint(0, max_enemies)
for i in range(number_of_enemies):
# Try to find a valid position
attempts = 10
while attempts > 0:
# Random position within room bounds
x = random.randint(room.x1 + 1, room.x2 - 1)
y = random.randint(room.y1 + 1, room.y2 - 1)
# Check if position is valid
if not game_map.is_blocked(x, y):
# 80% chance for orc, 20% for troll
if random.random() < 0.8:
enemy = GameObject(x, y, 111, (63, 127, 63), "Orc", blocks=True)
else:
enemy = GameObject(x, y, 84, (0, 127, 0), "Troll", blocks=True)
game_map.add_entity(enemy)
break
attempts -= 1
```
## Enhanced Collision Detection
We need to improve our collision detection to check for entities, not just walls:
```python
class GameMap:
"""Manages the game world"""
def get_blocking_entity_at(self, x, y):
"""Return any blocking entity at the given position"""
for entity in self.entities:
if entity.blocks and entity.x == x and entity.y == y:
return entity
return None
def is_blocked(self, x, y):
"""Check if a tile blocks movement"""
# Check boundaries
if x < 0 or x >= self.width or y < 0 or y >= self.height:
return True
# Check walls
if not self.grid.at(x, y).walkable:
return True
# Check entities
if self.get_blocking_entity_at(x, y):
return True
return False
```
## Action System Introduction
Let's create a simple action system to handle different types of interactions:
```python
class Action:
"""Base class for all actions"""
pass
class MovementAction(Action):
"""Action for moving an entity"""
def __init__(self, dx, dy):
self.dx = dx
self.dy = dy
class BumpAction(Action):
"""Action for bumping into something"""
def __init__(self, dx, dy, target=None):
self.dx = dx
self.dy = dy
self.target = target
class WaitAction(Action):
"""Action for waiting/skipping turn"""
pass
```
## Handling Player Actions
Now let's update our movement handling to support bumping into enemies:
```python
def handle_player_turn(self, action):
"""Process the player's action"""
if isinstance(action, MovementAction):
dest_x = self.player.x + action.dx
dest_y = self.player.y + action.dy
# Check what's at the destination
target = self.game_map.get_blocking_entity_at(dest_x, dest_y)
if target:
# We bumped into something!
print(f"You kick the {target.name} in the shins, much to its annoyance!")
elif not self.game_map.is_blocked(dest_x, dest_y):
# Move the player
self.player.move(action.dx, action.dy)
# Update message
self.status_text.text = "Exploring the dungeon..."
else:
# Bumped into a wall
self.status_text.text = "Ouch! You bump into a wall."
elif isinstance(action, WaitAction):
self.status_text.text = "You wait..."
```
## Complete Updated Code
Here's the complete `game.py` with enemy placement and interactions:
```python
import mcrfpy
import random
# Color configurations
COLORS_VISIBLE = {
'wall': (100, 100, 100),
'floor': (50, 50, 50),
'tunnel': (30, 30, 40),
}
# Actions
class Action:
"""Base class for all actions"""
pass
class MovementAction(Action):
"""Action for moving an entity"""
def __init__(self, dx, dy):
self.dx = dx
self.dy = dy
class WaitAction(Action):
"""Action for waiting/skipping turn"""
pass
class GameObject:
"""Base class for all game objects"""
def __init__(self, x, y, sprite_index, color, name, blocks=False):
self.x = x
self.y = y
self.sprite_index = sprite_index
self.color = color
self.name = name
self.blocks = blocks
self._entity = None
self.grid = None
def attach_to_grid(self, grid):
"""Attach this game object to a McRogueFace grid"""
self.grid = grid
self._entity = mcrfpy.Entity(x=self.x, y=self.y, grid=grid)
self._entity.sprite_index = self.sprite_index
self._entity.color = mcrfpy.Color(*self.color)
def move(self, dx, dy):
"""Move by the given amount"""
if not self.grid:
return
self.x += dx
self.y += dy
if self._entity:
self._entity.x = self.x
self._entity.y = self.y
# Update FOV when player moves
if self.name == "Player":
self.update_fov()
def update_fov(self):
"""Update field of view from this entity's position"""
if self._entity and self.grid:
self._entity.update_fov(radius=8)
class RectangularRoom:
"""A rectangular room with its position and size"""
def __init__(self, x, y, width, height):
self.x1 = x
self.y1 = y
self.x2 = x + width
self.y2 = y + height
@property
def center(self):
center_x = (self.x1 + self.x2) // 2
center_y = (self.y1 + self.y2) // 2
return center_x, center_y
@property
def inner(self):
return self.x1 + 1, self.y1 + 1, self.x2 - 1, self.y2 - 1
def intersects(self, other):
return (
self.x1 <= other.x2
and self.x2 >= other.x1
and self.y1 <= other.y2
and self.y2 >= other.y1
)
def tunnel_between(start, end):
"""Return an L-shaped tunnel between two points"""
x1, y1 = start
x2, y2 = end
if random.random() < 0.5:
corner_x = x2
corner_y = y1
else:
corner_x = x1
corner_y = y2
for x in range(min(x1, corner_x), max(x1, corner_x) + 1):
yield x, y1
for y in range(min(y1, corner_y), max(y1, corner_y) + 1):
yield corner_x, y
for x in range(min(corner_x, x2), max(corner_x, x2) + 1):
yield x, corner_y
for y in range(min(corner_y, y2), max(corner_y, y2) + 1):
yield x2, y
def spawn_enemies_in_room(room, game_map, max_enemies=2):
"""Spawn between 0 and max_enemies in a room"""
number_of_enemies = random.randint(0, max_enemies)
enemies_spawned = []
for i in range(number_of_enemies):
# Try to find a valid position
attempts = 10
while attempts > 0:
# Random position within room bounds
x = random.randint(room.x1 + 1, room.x2 - 1)
y = random.randint(room.y1 + 1, room.y2 - 1)
# Check if position is valid
if not game_map.is_blocked(x, y):
# 80% chance for orc, 20% for troll
if random.random() < 0.8:
enemy = GameObject(x, y, 111, (63, 127, 63), "Orc", blocks=True)
else:
enemy = GameObject(x, y, 84, (0, 127, 0), "Troll", blocks=True)
game_map.add_entity(enemy)
enemies_spawned.append(enemy)
break
attempts -= 1
return enemies_spawned
class GameMap:
"""Manages the game world"""
def __init__(self, width, height):
self.width = width
self.height = height
self.grid = None
self.entities = []
self.rooms = []
def create_grid(self, tileset):
"""Create the McRogueFace grid"""
self.grid = mcrfpy.Grid(grid_x=self.width, grid_y=self.height, texture=tileset)
self.grid.position = (100, 100)
self.grid.size = (800, 480)
# Enable perspective rendering
self.grid.perspective = 0
return self.grid
def fill_with_walls(self):
"""Fill the entire map with wall tiles"""
for y in range(self.height):
for x in range(self.width):
self.set_tile(x, y, walkable=False, transparent=False,
sprite_index=35, tile_type='wall')
def set_tile(self, x, y, walkable, transparent, sprite_index, tile_type):
"""Set properties for a specific tile"""
if 0 <= x < self.width and 0 <= y < self.height:
cell = self.grid.at(x, y)
cell.walkable = walkable
cell.transparent = transparent
cell.sprite_index = sprite_index
cell.color = mcrfpy.Color(*COLORS_VISIBLE[tile_type])
def generate_dungeon(self, max_rooms, room_min_size, room_max_size, player, max_enemies_per_room):
"""Generate a new dungeon map"""
self.fill_with_walls()
for r in range(max_rooms):
room_width = random.randint(room_min_size, room_max_size)
room_height = random.randint(room_min_size, room_max_size)
x = random.randint(0, self.width - room_width - 1)
y = random.randint(0, self.height - room_height - 1)
new_room = RectangularRoom(x, y, room_width, room_height)
if any(new_room.intersects(other_room) for other_room in self.rooms):
continue
self.carve_room(new_room)
if len(self.rooms) == 0:
# First room - place player
player.x, player.y = new_room.center
if player._entity:
player._entity.x, player._entity.y = new_room.center
else:
# All other rooms - add tunnel and enemies
self.carve_tunnel(self.rooms[-1].center, new_room.center)
spawn_enemies_in_room(new_room, self, max_enemies_per_room)
self.rooms.append(new_room)
def carve_room(self, room):
"""Carve out a room"""
inner_x1, inner_y1, inner_x2, inner_y2 = room.inner
for y in range(inner_y1, inner_y2):
for x in range(inner_x1, inner_x2):
self.set_tile(x, y, walkable=True, transparent=True,
sprite_index=46, tile_type='floor')
def carve_tunnel(self, start, end):
"""Carve a tunnel between two points"""
for x, y in tunnel_between(start, end):
self.set_tile(x, y, walkable=True, transparent=True,
sprite_index=46, tile_type='tunnel')
def get_blocking_entity_at(self, x, y):
"""Return any blocking entity at the given position"""
for entity in self.entities:
if entity.blocks and entity.x == x and entity.y == y:
return entity
return None
def is_blocked(self, x, y):
"""Check if a tile blocks movement"""
if x < 0 or x >= self.width or y < 0 or y >= self.height:
return True
if not self.grid.at(x, y).walkable:
return True
if self.get_blocking_entity_at(x, y):
return True
return False
def add_entity(self, entity):
"""Add a GameObject to the map"""
self.entities.append(entity)
entity.attach_to_grid(self.grid)
class Engine:
"""Main game engine"""
def __init__(self):
self.game_map = None
self.player = None
self.entities = []
mcrfpy.createScene("game")
mcrfpy.setScene("game")
window = mcrfpy.Window.get()
window.title = "McRogueFace Roguelike - Part 5"
self.ui = mcrfpy.sceneUI("game")
background = mcrfpy.Frame(0, 0, 1024, 768)
background.fill_color = mcrfpy.Color(0, 0, 0)
self.ui.append(background)
self.tileset = mcrfpy.Texture("assets/sprites/ascii_tileset.png", 16, 16)
self.setup_game()
self.setup_input()
self.setup_ui()
def setup_game(self):
"""Initialize the game world"""
self.game_map = GameMap(80, 45)
grid = self.game_map.create_grid(self.tileset)
self.ui.append(grid)
# Create player
self.player = GameObject(0, 0, 64, (255, 255, 255), "Player", blocks=True)
# Generate the dungeon
self.game_map.generate_dungeon(
max_rooms=30,
room_min_size=6,
room_max_size=10,
player=self.player,
max_enemies_per_room=2
)
# Add player to map
self.game_map.add_entity(self.player)
# Store reference to all entities
self.entities = [e for e in self.game_map.entities if e != self.player]
# Initial FOV calculation
self.player.update_fov()
def handle_player_turn(self, action):
"""Process the player's action"""
if isinstance(action, MovementAction):
dest_x = self.player.x + action.dx
dest_y = self.player.y + action.dy
# Check what's at the destination
target = self.game_map.get_blocking_entity_at(dest_x, dest_y)
if target:
# We bumped into something!
print(f"You kick the {target.name} in the shins, much to its annoyance!")
self.status_text.text = f"You kick the {target.name}!"
elif not self.game_map.is_blocked(dest_x, dest_y):
# Move the player
self.player.move(action.dx, action.dy)
self.status_text.text = ""
else:
# Bumped into a wall
self.status_text.text = "Blocked!"
elif isinstance(action, WaitAction):
self.status_text.text = "You wait..."
def setup_input(self):
"""Setup keyboard input handling"""
def handle_keys(key, state):
if state != "start":
return
action = None
# Movement keys
movement = {
"Up": (0, -1), "Down": (0, 1),
"Left": (-1, 0), "Right": (1, 0),
"Num7": (-1, -1), "Num8": (0, -1), "Num9": (1, -1),
"Num4": (-1, 0), "Num5": (0, 0), "Num6": (1, 0),
"Num1": (-1, 1), "Num2": (0, 1), "Num3": (1, 1),
}
if key in movement:
dx, dy = movement[key]
if dx == 0 and dy == 0:
action = WaitAction()
else:
action = MovementAction(dx, dy)
elif key == "Period":
action = WaitAction()
elif key == "Escape":
mcrfpy.setScene(None)
return
# Process the action
if action:
self.handle_player_turn(action)
mcrfpy.keypressScene(handle_keys)
def setup_ui(self):
"""Setup UI elements"""
title = mcrfpy.Caption("Placing Enemies", 512, 30)
title.font_size = 24
title.fill_color = mcrfpy.Color(255, 255, 100)
self.ui.append(title)
instructions = mcrfpy.Caption("Arrow keys to move | . to wait | Bump into enemies! | ESC to quit", 512, 60)
instructions.font_size = 16
instructions.fill_color = mcrfpy.Color(200, 200, 200)
self.ui.append(instructions)
# Status text
self.status_text = mcrfpy.Caption("", 512, 600)
self.status_text.font_size = 18
self.status_text.fill_color = mcrfpy.Color(255, 200, 200)
self.ui.append(self.status_text)
# Entity count
entity_count = len(self.entities)
count_text = mcrfpy.Caption(f"Enemies: {entity_count}", 900, 100)
count_text.font_size = 14
count_text.fill_color = mcrfpy.Color(150, 150, 255)
self.ui.append(count_text)
# Create and run the game
engine = Engine()
print("Part 5: Placing Enemies!")
print("Try bumping into enemies - combat coming in Part 6!")
```
## Understanding Entity Interactions
### Collision Detection
Our system now checks three things when the player tries to move:
1. **Map boundaries** - Can't move outside the map
2. **Wall tiles** - Can't walk through walls
3. **Blocking entities** - Can't walk through enemies
### The Action System
We've introduced a simple action system that will grow in Part 6:
- `Action` - Base class for all actions
- `MovementAction` - Represents attempted movement
- `WaitAction` - Skip a turn (important for turn-based games)
### Entity Spawning
Enemies are placed randomly in rooms with these rules:
- Never in the first room (player's starting room)
- Random number between 0 and max per room
- 80% orcs, 20% trolls
- Must be placed on walkable, unoccupied tiles
## Visual Feedback
With FOV enabled, enemies will appear and disappear as you explore:
- Enemies in sight are fully visible
- Enemies in explored but dark areas are hidden
- Creates tension and surprise encounters
## Exercises
1. **More Enemy Types**: Add different sprites and names (goblins, skeletons)
2. **Enemy Density**: Adjust spawn rates based on dungeon depth
3. **Special Rooms**: Create rooms with guaranteed enemies or treasures
4. **Better Feedback**: Add sound effects or visual effects for bumping
## What's Next?
In Part 6, we'll transform those harmless kicks into a real combat system! We'll add:
- Health points for all entities
- Damage calculations
- Death and corpses
- Combat messages
- The beginning of a real roguelike!
Right now our enemies are just obstacles. Soon they'll fight back!

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@ -1,388 +0,0 @@
import mcrfpy
import random
# Color configurations
COLORS_VISIBLE = {
'wall': (100, 100, 100),
'floor': (50, 50, 50),
'tunnel': (30, 30, 40),
}
# Actions
class Action:
"""Base class for all actions"""
pass
class MovementAction(Action):
"""Action for moving an entity"""
def __init__(self, dx, dy):
self.dx = dx
self.dy = dy
class WaitAction(Action):
"""Action for waiting/skipping turn"""
pass
class GameObject:
"""Base class for all game objects"""
def __init__(self, x, y, sprite_index, color, name, blocks=False):
self.x = x
self.y = y
self.sprite_index = sprite_index
self.color = color
self.name = name
self.blocks = blocks
self._entity = None
self.grid = None
def attach_to_grid(self, grid):
"""Attach this game object to a McRogueFace grid"""
self.grid = grid
self._entity = mcrfpy.Entity(x=self.x, y=self.y, grid=grid)
self._entity.sprite_index = self.sprite_index
self._entity.color = mcrfpy.Color(*self.color)
def move(self, dx, dy):
"""Move by the given amount"""
if not self.grid:
return
self.x += dx
self.y += dy
if self._entity:
self._entity.x = self.x
self._entity.y = self.y
# Update FOV when player moves
if self.name == "Player":
self.update_fov()
def update_fov(self):
"""Update field of view from this entity's position"""
if self._entity and self.grid:
self._entity.update_fov(radius=8)
class RectangularRoom:
"""A rectangular room with its position and size"""
def __init__(self, x, y, width, height):
self.x1 = x
self.y1 = y
self.x2 = x + width
self.y2 = y + height
@property
def center(self):
center_x = (self.x1 + self.x2) // 2
center_y = (self.y1 + self.y2) // 2
return center_x, center_y
@property
def inner(self):
return self.x1 + 1, self.y1 + 1, self.x2 - 1, self.y2 - 1
def intersects(self, other):
return (
self.x1 <= other.x2
and self.x2 >= other.x1
and self.y1 <= other.y2
and self.y2 >= other.y1
)
def tunnel_between(start, end):
"""Return an L-shaped tunnel between two points"""
x1, y1 = start
x2, y2 = end
if random.random() < 0.5:
corner_x = x2
corner_y = y1
else:
corner_x = x1
corner_y = y2
for x in range(min(x1, corner_x), max(x1, corner_x) + 1):
yield x, y1
for y in range(min(y1, corner_y), max(y1, corner_y) + 1):
yield corner_x, y
for x in range(min(corner_x, x2), max(corner_x, x2) + 1):
yield x, corner_y
for y in range(min(corner_y, y2), max(corner_y, y2) + 1):
yield x2, y
def spawn_enemies_in_room(room, game_map, max_enemies=2):
"""Spawn between 0 and max_enemies in a room"""
number_of_enemies = random.randint(0, max_enemies)
enemies_spawned = []
for i in range(number_of_enemies):
# Try to find a valid position
attempts = 10
while attempts > 0:
# Random position within room bounds
x = random.randint(room.x1 + 1, room.x2 - 1)
y = random.randint(room.y1 + 1, room.y2 - 1)
# Check if position is valid
if not game_map.is_blocked(x, y):
# 80% chance for orc, 20% for troll
if random.random() < 0.8:
enemy = GameObject(x, y, 111, (63, 127, 63), "Orc", blocks=True)
else:
enemy = GameObject(x, y, 84, (0, 127, 0), "Troll", blocks=True)
game_map.add_entity(enemy)
enemies_spawned.append(enemy)
break
attempts -= 1
return enemies_spawned
class GameMap:
"""Manages the game world"""
def __init__(self, width, height):
self.width = width
self.height = height
self.grid = None
self.entities = []
self.rooms = []
def create_grid(self, tileset):
"""Create the McRogueFace grid"""
self.grid = mcrfpy.Grid(grid_x=self.width, grid_y=self.height, texture=tileset)
self.grid.position = (100, 100)
self.grid.size = (800, 480)
# Enable perspective rendering
self.grid.perspective = 0
return self.grid
def fill_with_walls(self):
"""Fill the entire map with wall tiles"""
for y in range(self.height):
for x in range(self.width):
self.set_tile(x, y, walkable=False, transparent=False,
sprite_index=35, tile_type='wall')
def set_tile(self, x, y, walkable, transparent, sprite_index, tile_type):
"""Set properties for a specific tile"""
if 0 <= x < self.width and 0 <= y < self.height:
cell = self.grid.at(x, y)
cell.walkable = walkable
cell.transparent = transparent
cell.sprite_index = sprite_index
cell.color = mcrfpy.Color(*COLORS_VISIBLE[tile_type])
def generate_dungeon(self, max_rooms, room_min_size, room_max_size, player, max_enemies_per_room):
"""Generate a new dungeon map"""
self.fill_with_walls()
for r in range(max_rooms):
room_width = random.randint(room_min_size, room_max_size)
room_height = random.randint(room_min_size, room_max_size)
x = random.randint(0, self.width - room_width - 1)
y = random.randint(0, self.height - room_height - 1)
new_room = RectangularRoom(x, y, room_width, room_height)
if any(new_room.intersects(other_room) for other_room in self.rooms):
continue
self.carve_room(new_room)
if len(self.rooms) == 0:
# First room - place player
player.x, player.y = new_room.center
if player._entity:
player._entity.x, player._entity.y = new_room.center
else:
# All other rooms - add tunnel and enemies
self.carve_tunnel(self.rooms[-1].center, new_room.center)
spawn_enemies_in_room(new_room, self, max_enemies_per_room)
self.rooms.append(new_room)
def carve_room(self, room):
"""Carve out a room"""
inner_x1, inner_y1, inner_x2, inner_y2 = room.inner
for y in range(inner_y1, inner_y2):
for x in range(inner_x1, inner_x2):
self.set_tile(x, y, walkable=True, transparent=True,
sprite_index=46, tile_type='floor')
def carve_tunnel(self, start, end):
"""Carve a tunnel between two points"""
for x, y in tunnel_between(start, end):
self.set_tile(x, y, walkable=True, transparent=True,
sprite_index=46, tile_type='tunnel')
def get_blocking_entity_at(self, x, y):
"""Return any blocking entity at the given position"""
for entity in self.entities:
if entity.blocks and entity.x == x and entity.y == y:
return entity
return None
def is_blocked(self, x, y):
"""Check if a tile blocks movement"""
if x < 0 or x >= self.width or y < 0 or y >= self.height:
return True
if not self.grid.at(x, y).walkable:
return True
if self.get_blocking_entity_at(x, y):
return True
return False
def add_entity(self, entity):
"""Add a GameObject to the map"""
self.entities.append(entity)
entity.attach_to_grid(self.grid)
class Engine:
"""Main game engine"""
def __init__(self):
self.game_map = None
self.player = None
self.entities = []
mcrfpy.createScene("game")
mcrfpy.setScene("game")
window = mcrfpy.Window.get()
window.title = "McRogueFace Roguelike - Part 5"
self.ui = mcrfpy.sceneUI("game")
background = mcrfpy.Frame(0, 0, 1024, 768)
background.fill_color = mcrfpy.Color(0, 0, 0)
self.ui.append(background)
self.tileset = mcrfpy.Texture("assets/sprites/ascii_tileset.png", 16, 16)
self.setup_game()
self.setup_input()
self.setup_ui()
def setup_game(self):
"""Initialize the game world"""
self.game_map = GameMap(80, 45)
grid = self.game_map.create_grid(self.tileset)
self.ui.append(grid)
# Create player
self.player = GameObject(0, 0, 64, (255, 255, 255), "Player", blocks=True)
# Generate the dungeon
self.game_map.generate_dungeon(
max_rooms=30,
room_min_size=6,
room_max_size=10,
player=self.player,
max_enemies_per_room=2
)
# Add player to map
self.game_map.add_entity(self.player)
# Store reference to all entities
self.entities = [e for e in self.game_map.entities if e != self.player]
# Initial FOV calculation
self.player.update_fov()
def handle_player_turn(self, action):
"""Process the player's action"""
if isinstance(action, MovementAction):
dest_x = self.player.x + action.dx
dest_y = self.player.y + action.dy
# Check what's at the destination
target = self.game_map.get_blocking_entity_at(dest_x, dest_y)
if target:
# We bumped into something!
print(f"You kick the {target.name} in the shins, much to its annoyance!")
self.status_text.text = f"You kick the {target.name}!"
elif not self.game_map.is_blocked(dest_x, dest_y):
# Move the player
self.player.move(action.dx, action.dy)
self.status_text.text = ""
else:
# Bumped into a wall
self.status_text.text = "Blocked!"
elif isinstance(action, WaitAction):
self.status_text.text = "You wait..."
def setup_input(self):
"""Setup keyboard input handling"""
def handle_keys(key, state):
if state != "start":
return
action = None
# Movement keys
movement = {
"Up": (0, -1), "Down": (0, 1),
"Left": (-1, 0), "Right": (1, 0),
"Num7": (-1, -1), "Num8": (0, -1), "Num9": (1, -1),
"Num4": (-1, 0), "Num5": (0, 0), "Num6": (1, 0),
"Num1": (-1, 1), "Num2": (0, 1), "Num3": (1, 1),
}
if key in movement:
dx, dy = movement[key]
if dx == 0 and dy == 0:
action = WaitAction()
else:
action = MovementAction(dx, dy)
elif key == "Period":
action = WaitAction()
elif key == "Escape":
mcrfpy.setScene(None)
return
# Process the action
if action:
self.handle_player_turn(action)
mcrfpy.keypressScene(handle_keys)
def setup_ui(self):
"""Setup UI elements"""
title = mcrfpy.Caption("Placing Enemies", 512, 30)
title.font_size = 24
title.fill_color = mcrfpy.Color(255, 255, 100)
self.ui.append(title)
instructions = mcrfpy.Caption("Arrow keys to move | . to wait | Bump into enemies! | ESC to quit", 512, 60)
instructions.font_size = 16
instructions.fill_color = mcrfpy.Color(200, 200, 200)
self.ui.append(instructions)
# Status text
self.status_text = mcrfpy.Caption("", 512, 600)
self.status_text.font_size = 18
self.status_text.fill_color = mcrfpy.Color(255, 200, 200)
self.ui.append(self.status_text)
# Entity count
entity_count = len(self.entities)
count_text = mcrfpy.Caption(f"Enemies: {entity_count}", 900, 100)
count_text.font_size = 14
count_text.fill_color = mcrfpy.Color(150, 150, 255)
self.ui.append(count_text)
# Create and run the game
engine = Engine()
print("Part 5: Placing Enemies!")
print("Try bumping into enemies - combat coming in Part 6!")

View File

@ -1,743 +0,0 @@
# Part 6 - Doing (and Taking) Some Damage
It's time to turn our harmless kicks into real combat! In this part, we'll implement:
- Health points for all entities
- A damage calculation system
- Death and corpse mechanics
- Combat feedback messages
- The foundation of tactical roguelike combat
## Adding Combat Stats
First, let's enhance our GameObject class with combat capabilities:
```python
class GameObject:
"""Base class for all game objects"""
def __init__(self, x, y, sprite_index, color, name,
blocks=False, hp=0, defense=0, power=0):
self.x = x
self.y = y
self.sprite_index = sprite_index
self.color = color
self.name = name
self.blocks = blocks
self._entity = None
self.grid = None
# Combat stats
self.max_hp = hp
self.hp = hp
self.defense = defense
self.power = power
@property
def is_alive(self):
"""Returns True if this entity can act"""
return self.hp > 0
def take_damage(self, amount):
"""Apply damage to this entity"""
damage = amount - self.defense
if damage > 0:
self.hp -= damage
# Check for death
if self.hp <= 0 and self.hp + damage > 0:
self.die()
return damage
def die(self):
"""Handle entity death"""
if self.name == "Player":
# Player death is special - we'll handle it differently
self.sprite_index = 64 # Stay as @ but change color
self.color = (127, 0, 0) # Dark red
if self._entity:
self._entity.color = mcrfpy.Color(127, 0, 0)
print("You have died!")
else:
# Enemy death
self.sprite_index = 37 # % character for corpse
self.color = (127, 0, 0) # Dark red
self.blocks = False # Corpses don't block
self.name = f"remains of {self.name}"
if self._entity:
self._entity.sprite_index = 37
self._entity.color = mcrfpy.Color(127, 0, 0)
```
## The Combat System
Now let's implement actual combat when entities bump into each other:
```python
class MeleeAction(Action):
"""Action for melee attacks"""
def __init__(self, attacker, target):
self.attacker = attacker
self.target = target
def perform(self):
"""Execute the attack"""
if not self.target.is_alive:
return # Can't attack the dead
damage = self.attacker.power - self.target.defense
if damage > 0:
attack_desc = f"{self.attacker.name} attacks {self.target.name} for {damage} damage!"
self.target.take_damage(damage)
else:
attack_desc = f"{self.attacker.name} attacks {self.target.name} but does no damage."
return attack_desc
```
## Entity Factories
Let's create factory functions for consistent entity creation:
```python
def create_player(x, y):
"""Create the player entity"""
return GameObject(
x=x, y=y,
sprite_index=64, # @
color=(255, 255, 255),
name="Player",
blocks=True,
hp=30,
defense=2,
power=5
)
def create_orc(x, y):
"""Create an orc enemy"""
return GameObject(
x=x, y=y,
sprite_index=111, # o
color=(63, 127, 63),
name="Orc",
blocks=True,
hp=10,
defense=0,
power=3
)
def create_troll(x, y):
"""Create a troll enemy"""
return GameObject(
x=x, y=y,
sprite_index=84, # T
color=(0, 127, 0),
name="Troll",
blocks=True,
hp=16,
defense=1,
power=4
)
```
## The Message Log
Combat needs feedback! Let's create a simple message log:
```python
class MessageLog:
"""Manages game messages"""
def __init__(self, max_messages=5):
self.messages = []
self.max_messages = max_messages
def add_message(self, text, color=(255, 255, 255)):
"""Add a message to the log"""
self.messages.append((text, color))
# Keep only recent messages
if len(self.messages) > self.max_messages:
self.messages.pop(0)
def render(self, ui, x, y, line_height=20):
"""Render messages to the UI"""
for i, (text, color) in enumerate(self.messages):
caption = mcrfpy.Caption(text, x, y + i * line_height)
caption.font_size = 14
caption.fill_color = mcrfpy.Color(*color)
ui.append(caption)
```
## Complete Implementation
Here's the complete `game.py` with combat:
```python
import mcrfpy
import random
# Color configurations
COLORS_VISIBLE = {
'wall': (100, 100, 100),
'floor': (50, 50, 50),
'tunnel': (30, 30, 40),
}
# Message colors
COLOR_PLAYER_ATK = (230, 230, 230)
COLOR_ENEMY_ATK = (255, 200, 200)
COLOR_PLAYER_DIE = (255, 100, 100)
COLOR_ENEMY_DIE = (255, 165, 0)
# Actions
class Action:
"""Base class for all actions"""
pass
class MovementAction(Action):
"""Action for moving an entity"""
def __init__(self, dx, dy):
self.dx = dx
self.dy = dy
class MeleeAction(Action):
"""Action for melee attacks"""
def __init__(self, attacker, target):
self.attacker = attacker
self.target = target
def perform(self):
"""Execute the attack"""
if not self.target.is_alive:
return None
damage = self.attacker.power - self.target.defense
if damage > 0:
attack_desc = f"{self.attacker.name} attacks {self.target.name} for {damage} damage!"
self.target.take_damage(damage)
# Choose color based on attacker
if self.attacker.name == "Player":
color = COLOR_PLAYER_ATK
else:
color = COLOR_ENEMY_ATK
return attack_desc, color
else:
attack_desc = f"{self.attacker.name} attacks {self.target.name} but does no damage."
return attack_desc, (150, 150, 150)
class WaitAction(Action):
"""Action for waiting/skipping turn"""
pass
class GameObject:
"""Base class for all game objects"""
def __init__(self, x, y, sprite_index, color, name,
blocks=False, hp=0, defense=0, power=0):
self.x = x
self.y = y
self.sprite_index = sprite_index
self.color = color
self.name = name
self.blocks = blocks
self._entity = None
self.grid = None
# Combat stats
self.max_hp = hp
self.hp = hp
self.defense = defense
self.power = power
@property
def is_alive(self):
"""Returns True if this entity can act"""
return self.hp > 0
def attach_to_grid(self, grid):
"""Attach this game object to a McRogueFace grid"""
self.grid = grid
self._entity = mcrfpy.Entity(x=self.x, y=self.y, grid=grid)
self._entity.sprite_index = self.sprite_index
self._entity.color = mcrfpy.Color(*self.color)
def move(self, dx, dy):
"""Move by the given amount"""
if not self.grid:
return
self.x += dx
self.y += dy
if self._entity:
self._entity.x = self.x
self._entity.y = self.y
# Update FOV when player moves
if self.name == "Player":
self.update_fov()
def update_fov(self):
"""Update field of view from this entity's position"""
if self._entity and self.grid:
self._entity.update_fov(radius=8)
def take_damage(self, amount):
"""Apply damage to this entity"""
self.hp -= amount
# Check for death
if self.hp <= 0:
self.die()
def die(self):
"""Handle entity death"""
if self.name == "Player":
# Player death
self.sprite_index = 64 # Stay as @
self.color = (127, 0, 0) # Dark red
if self._entity:
self._entity.color = mcrfpy.Color(127, 0, 0)
else:
# Enemy death
self.sprite_index = 37 # % character for corpse
self.color = (127, 0, 0) # Dark red
self.blocks = False # Corpses don't block
self.name = f"remains of {self.name}"
if self._entity:
self._entity.sprite_index = 37
self._entity.color = mcrfpy.Color(127, 0, 0)
# Entity factories
def create_player(x, y):
"""Create the player entity"""
return GameObject(
x=x, y=y,
sprite_index=64, # @
color=(255, 255, 255),
name="Player",
blocks=True,
hp=30,
defense=2,
power=5
)
def create_orc(x, y):
"""Create an orc enemy"""
return GameObject(
x=x, y=y,
sprite_index=111, # o
color=(63, 127, 63),
name="Orc",
blocks=True,
hp=10,
defense=0,
power=3
)
def create_troll(x, y):
"""Create a troll enemy"""
return GameObject(
x=x, y=y,
sprite_index=84, # T
color=(0, 127, 0),
name="Troll",
blocks=True,
hp=16,
defense=1,
power=4
)
class RectangularRoom:
"""A rectangular room with its position and size"""
def __init__(self, x, y, width, height):
self.x1 = x
self.y1 = y
self.x2 = x + width
self.y2 = y + height
@property
def center(self):
center_x = (self.x1 + self.x2) // 2
center_y = (self.y1 + self.y2) // 2
return center_x, center_y
@property
def inner(self):
return self.x1 + 1, self.y1 + 1, self.x2 - 1, self.y2 - 1
def intersects(self, other):
return (
self.x1 <= other.x2
and self.x2 >= other.x1
and self.y1 <= other.y2
and self.y2 >= other.y1
)
def tunnel_between(start, end):
"""Return an L-shaped tunnel between two points"""
x1, y1 = start
x2, y2 = end
if random.random() < 0.5:
corner_x = x2
corner_y = y1
else:
corner_x = x1
corner_y = y2
for x in range(min(x1, corner_x), max(x1, corner_x) + 1):
yield x, y1
for y in range(min(y1, corner_y), max(y1, corner_y) + 1):
yield corner_x, y
for x in range(min(corner_x, x2), max(corner_x, x2) + 1):
yield x, corner_y
for y in range(min(corner_y, y2), max(corner_y, y2) + 1):
yield x2, y
def spawn_enemies_in_room(room, game_map, max_enemies=2):
"""Spawn between 0 and max_enemies in a room"""
number_of_enemies = random.randint(0, max_enemies)
enemies_spawned = []
for i in range(number_of_enemies):
attempts = 10
while attempts > 0:
x = random.randint(room.x1 + 1, room.x2 - 1)
y = random.randint(room.y1 + 1, room.y2 - 1)
if not game_map.is_blocked(x, y):
# 80% chance for orc, 20% for troll
if random.random() < 0.8:
enemy = create_orc(x, y)
else:
enemy = create_troll(x, y)
game_map.add_entity(enemy)
enemies_spawned.append(enemy)
break
attempts -= 1
return enemies_spawned
class GameMap:
"""Manages the game world"""
def __init__(self, width, height):
self.width = width
self.height = height
self.grid = None
self.entities = []
self.rooms = []
def create_grid(self, tileset):
"""Create the McRogueFace grid"""
self.grid = mcrfpy.Grid(grid_x=self.width, grid_y=self.height, texture=tileset)
self.grid.position = (100, 100)
self.grid.size = (800, 480)
# Enable perspective rendering
self.grid.perspective = 0
return self.grid
def fill_with_walls(self):
"""Fill the entire map with wall tiles"""
for y in range(self.height):
for x in range(self.width):
self.set_tile(x, y, walkable=False, transparent=False,
sprite_index=35, tile_type='wall')
def set_tile(self, x, y, walkable, transparent, sprite_index, tile_type):
"""Set properties for a specific tile"""
if 0 <= x < self.width and 0 <= y < self.height:
cell = self.grid.at(x, y)
cell.walkable = walkable
cell.transparent = transparent
cell.sprite_index = sprite_index
cell.color = mcrfpy.Color(*COLORS_VISIBLE[tile_type])
def generate_dungeon(self, max_rooms, room_min_size, room_max_size, player, max_enemies_per_room):
"""Generate a new dungeon map"""
self.fill_with_walls()
for r in range(max_rooms):
room_width = random.randint(room_min_size, room_max_size)
room_height = random.randint(room_min_size, room_max_size)
x = random.randint(0, self.width - room_width - 1)
y = random.randint(0, self.height - room_height - 1)
new_room = RectangularRoom(x, y, room_width, room_height)
if any(new_room.intersects(other_room) for other_room in self.rooms):
continue
self.carve_room(new_room)
if len(self.rooms) == 0:
# First room - place player
player.x, player.y = new_room.center
if player._entity:
player._entity.x, player._entity.y = new_room.center
else:
# All other rooms - add tunnel and enemies
self.carve_tunnel(self.rooms[-1].center, new_room.center)
spawn_enemies_in_room(new_room, self, max_enemies_per_room)
self.rooms.append(new_room)
def carve_room(self, room):
"""Carve out a room"""
inner_x1, inner_y1, inner_x2, inner_y2 = room.inner
for y in range(inner_y1, inner_y2):
for x in range(inner_x1, inner_x2):
self.set_tile(x, y, walkable=True, transparent=True,
sprite_index=46, tile_type='floor')
def carve_tunnel(self, start, end):
"""Carve a tunnel between two points"""
for x, y in tunnel_between(start, end):
self.set_tile(x, y, walkable=True, transparent=True,
sprite_index=46, tile_type='tunnel')
def get_blocking_entity_at(self, x, y):
"""Return any blocking entity at the given position"""
for entity in self.entities:
if entity.blocks and entity.x == x and entity.y == y:
return entity
return None
def is_blocked(self, x, y):
"""Check if a tile blocks movement"""
if x < 0 or x >= self.width or y < 0 or y >= self.height:
return True
if not self.grid.at(x, y).walkable:
return True
if self.get_blocking_entity_at(x, y):
return True
return False
def add_entity(self, entity):
"""Add a GameObject to the map"""
self.entities.append(entity)
entity.attach_to_grid(self.grid)
class Engine:
"""Main game engine"""
def __init__(self):
self.game_map = None
self.player = None
self.entities = []
self.messages = [] # Simple message log
self.max_messages = 5
mcrfpy.createScene("game")
mcrfpy.setScene("game")
window = mcrfpy.Window.get()
window.title = "McRogueFace Roguelike - Part 6"
self.ui = mcrfpy.sceneUI("game")
background = mcrfpy.Frame(0, 0, 1024, 768)
background.fill_color = mcrfpy.Color(0, 0, 0)
self.ui.append(background)
self.tileset = mcrfpy.Texture("assets/sprites/ascii_tileset.png", 16, 16)
self.setup_game()
self.setup_input()
self.setup_ui()
def add_message(self, text, color=(255, 255, 255)):
"""Add a message to the log"""
self.messages.append((text, color))
if len(self.messages) > self.max_messages:
self.messages.pop(0)
self.update_message_display()
def update_message_display(self):
"""Update the message display"""
# Clear old messages
for caption in self.message_captions:
# Remove from UI (McRogueFace doesn't have remove, so we hide it)
caption.text = ""
# Display current messages
for i, (text, color) in enumerate(self.messages):
if i < len(self.message_captions):
self.message_captions[i].text = text
self.message_captions[i].fill_color = mcrfpy.Color(*color)
def setup_game(self):
"""Initialize the game world"""
self.game_map = GameMap(80, 45)
grid = self.game_map.create_grid(self.tileset)
self.ui.append(grid)
# Create player
self.player = create_player(0, 0)
# Generate the dungeon
self.game_map.generate_dungeon(
max_rooms=30,
room_min_size=6,
room_max_size=10,
player=self.player,
max_enemies_per_room=2
)
# Add player to map
self.game_map.add_entity(self.player)
# Store reference to all entities
self.entities = [e for e in self.game_map.entities if e != self.player]
# Initial FOV calculation
self.player.update_fov()
# Welcome message
self.add_message("Welcome to the dungeon!", (100, 100, 255))
def handle_player_turn(self, action):
"""Process the player's action"""
if not self.player.is_alive:
return
if isinstance(action, MovementAction):
dest_x = self.player.x + action.dx
dest_y = self.player.y + action.dy
# Check what's at the destination
target = self.game_map.get_blocking_entity_at(dest_x, dest_y)
if target:
# Attack!
attack = MeleeAction(self.player, target)
result = attack.perform()
if result:
text, color = result
self.add_message(text, color)
# Check if target died
if not target.is_alive:
death_msg = f"The {target.name.replace('remains of ', '')} is dead!"
self.add_message(death_msg, COLOR_ENEMY_DIE)
elif not self.game_map.is_blocked(dest_x, dest_y):
# Move the player
self.player.move(action.dx, action.dy)
elif isinstance(action, WaitAction):
pass # Do nothing
# Enemy turns
self.handle_enemy_turns()
def handle_enemy_turns(self):
"""Let all enemies take their turn"""
for entity in self.entities:
if entity.is_alive:
# Simple AI: if player is adjacent, attack. Otherwise, do nothing.
dx = entity.x - self.player.x
dy = entity.y - self.player.y
distance = abs(dx) + abs(dy)
if distance == 1: # Adjacent to player
attack = MeleeAction(entity, self.player)
result = attack.perform()
if result:
text, color = result
self.add_message(text, color)
# Check if player died
if not self.player.is_alive:
self.add_message("You have died!", COLOR_PLAYER_DIE)
def setup_input(self):
"""Setup keyboard input handling"""
def handle_keys(key, state):
if state != "start":
return
action = None
# Movement keys
movement = {
"Up": (0, -1), "Down": (0, 1),
"Left": (-1, 0), "Right": (1, 0),
"Num7": (-1, -1), "Num8": (0, -1), "Num9": (1, -1),
"Num4": (-1, 0), "Num5": (0, 0), "Num6": (1, 0),
"Num1": (-1, 1), "Num2": (0, 1), "Num3": (1, 1),
}
if key in movement:
dx, dy = movement[key]
if dx == 0 and dy == 0:
action = WaitAction()
else:
action = MovementAction(dx, dy)
elif key == "Period":
action = WaitAction()
elif key == "Escape":
mcrfpy.setScene(None)
return
# Process the action
if action:
self.handle_player_turn(action)
mcrfpy.keypressScene(handle_keys)
def setup_ui(self):
"""Setup UI elements"""
title = mcrfpy.Caption("Combat System", 512, 30)
title.font_size = 24
title.fill_color = mcrfpy.Color(255, 255, 100)
self.ui.append(title)
instructions = mcrfpy.Caption("Attack enemies by bumping into them!", 512, 60)
instructions.font_size = 16
instructions.fill_color = mcrfpy.Color(200, 200, 200)
self.ui.append(instructions)
# Player stats
self.hp_text = mcrfpy.Caption(f"HP: {self.player.hp}/{self.player.max_hp}", 50, 100)
self.hp_text.font_size = 18
self.hp_text.fill_color = mcrfpy.Color(255, 100, 100)
self.ui.append(self.hp_text)
# Message log
self.message_captions = []
for i in range(self.max_messages):
caption = mcrfpy.Caption("", 50, 620 + i * 20)
caption.font_size = 14
caption.fill_color = mcrfpy.Color(200, 200, 200)
self.ui.append(caption)
self.message_captions.append(caption)
# Timer to update HP display
def update_stats(dt):
self.hp_text.text = f"HP: {self.player.hp}/{self.player.max_hp}"
if self.player.hp <= 0:
self.hp_text.fill_color = mcrfpy.Color(127, 0, 0)
elif self.player.hp < self.player.max_hp // 3:
self.hp_text.fill_color = mcrfpy.Color(255, 100, 100)
else:
self.hp_text.fill_color = mcrfpy.Color(0, 255, 0)
mcrfpy.setTimer("update_stats", update_stats, 100)
# Create and run the game
engine = Engine()
print("Part 6: Combat System!")
print("Attack enemies to defeat them, but watch your HP!")

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@ -1,568 +0,0 @@
import mcrfpy
import random
# Color configurations
COLORS_VISIBLE = {
'wall': (100, 100, 100),
'floor': (50, 50, 50),
'tunnel': (30, 30, 40),
}
# Message colors
COLOR_PLAYER_ATK = (230, 230, 230)
COLOR_ENEMY_ATK = (255, 200, 200)
COLOR_PLAYER_DIE = (255, 100, 100)
COLOR_ENEMY_DIE = (255, 165, 0)
# Actions
class Action:
"""Base class for all actions"""
pass
class MovementAction(Action):
"""Action for moving an entity"""
def __init__(self, dx, dy):
self.dx = dx
self.dy = dy
class MeleeAction(Action):
"""Action for melee attacks"""
def __init__(self, attacker, target):
self.attacker = attacker
self.target = target
def perform(self):
"""Execute the attack"""
if not self.target.is_alive:
return None
damage = self.attacker.power - self.target.defense
if damage > 0:
attack_desc = f"{self.attacker.name} attacks {self.target.name} for {damage} damage!"
self.target.take_damage(damage)
# Choose color based on attacker
if self.attacker.name == "Player":
color = COLOR_PLAYER_ATK
else:
color = COLOR_ENEMY_ATK
return attack_desc, color
else:
attack_desc = f"{self.attacker.name} attacks {self.target.name} but does no damage."
return attack_desc, (150, 150, 150)
class WaitAction(Action):
"""Action for waiting/skipping turn"""
pass
class GameObject:
"""Base class for all game objects"""
def __init__(self, x, y, sprite_index, color, name,
blocks=False, hp=0, defense=0, power=0):
self.x = x
self.y = y
self.sprite_index = sprite_index
self.color = color
self.name = name
self.blocks = blocks
self._entity = None
self.grid = None
# Combat stats
self.max_hp = hp
self.hp = hp
self.defense = defense
self.power = power
@property
def is_alive(self):
"""Returns True if this entity can act"""
return self.hp > 0
def attach_to_grid(self, grid):
"""Attach this game object to a McRogueFace grid"""
self.grid = grid
self._entity = mcrfpy.Entity(x=self.x, y=self.y, grid=grid)
self._entity.sprite_index = self.sprite_index
self._entity.color = mcrfpy.Color(*self.color)
def move(self, dx, dy):
"""Move by the given amount"""
if not self.grid:
return
self.x += dx
self.y += dy
if self._entity:
self._entity.x = self.x
self._entity.y = self.y
# Update FOV when player moves
if self.name == "Player":
self.update_fov()
def update_fov(self):
"""Update field of view from this entity's position"""
if self._entity and self.grid:
self._entity.update_fov(radius=8)
def take_damage(self, amount):
"""Apply damage to this entity"""
self.hp -= amount
# Check for death
if self.hp <= 0:
self.die()
def die(self):
"""Handle entity death"""
if self.name == "Player":
# Player death
self.sprite_index = 64 # Stay as @
self.color = (127, 0, 0) # Dark red
if self._entity:
self._entity.color = mcrfpy.Color(127, 0, 0)
else:
# Enemy death
self.sprite_index = 37 # % character for corpse
self.color = (127, 0, 0) # Dark red
self.blocks = False # Corpses don't block
self.name = f"remains of {self.name}"
if self._entity:
self._entity.sprite_index = 37
self._entity.color = mcrfpy.Color(127, 0, 0)
# Entity factories
def create_player(x, y):
"""Create the player entity"""
return GameObject(
x=x, y=y,
sprite_index=64, # @
color=(255, 255, 255),
name="Player",
blocks=True,
hp=30,
defense=2,
power=5
)
def create_orc(x, y):
"""Create an orc enemy"""
return GameObject(
x=x, y=y,
sprite_index=111, # o
color=(63, 127, 63),
name="Orc",
blocks=True,
hp=10,
defense=0,
power=3
)
def create_troll(x, y):
"""Create a troll enemy"""
return GameObject(
x=x, y=y,
sprite_index=84, # T
color=(0, 127, 0),
name="Troll",
blocks=True,
hp=16,
defense=1,
power=4
)
class RectangularRoom:
"""A rectangular room with its position and size"""
def __init__(self, x, y, width, height):
self.x1 = x
self.y1 = y
self.x2 = x + width
self.y2 = y + height
@property
def center(self):
center_x = (self.x1 + self.x2) // 2
center_y = (self.y1 + self.y2) // 2
return center_x, center_y
@property
def inner(self):
return self.x1 + 1, self.y1 + 1, self.x2 - 1, self.y2 - 1
def intersects(self, other):
return (
self.x1 <= other.x2
and self.x2 >= other.x1
and self.y1 <= other.y2
and self.y2 >= other.y1
)
def tunnel_between(start, end):
"""Return an L-shaped tunnel between two points"""
x1, y1 = start
x2, y2 = end
if random.random() < 0.5:
corner_x = x2
corner_y = y1
else:
corner_x = x1
corner_y = y2
for x in range(min(x1, corner_x), max(x1, corner_x) + 1):
yield x, y1
for y in range(min(y1, corner_y), max(y1, corner_y) + 1):
yield corner_x, y
for x in range(min(corner_x, x2), max(corner_x, x2) + 1):
yield x, corner_y
for y in range(min(corner_y, y2), max(corner_y, y2) + 1):
yield x2, y
def spawn_enemies_in_room(room, game_map, max_enemies=2):
"""Spawn between 0 and max_enemies in a room"""
number_of_enemies = random.randint(0, max_enemies)
enemies_spawned = []
for i in range(number_of_enemies):
attempts = 10
while attempts > 0:
x = random.randint(room.x1 + 1, room.x2 - 1)
y = random.randint(room.y1 + 1, room.y2 - 1)
if not game_map.is_blocked(x, y):
# 80% chance for orc, 20% for troll
if random.random() < 0.8:
enemy = create_orc(x, y)
else:
enemy = create_troll(x, y)
game_map.add_entity(enemy)
enemies_spawned.append(enemy)
break
attempts -= 1
return enemies_spawned
class GameMap:
"""Manages the game world"""
def __init__(self, width, height):
self.width = width
self.height = height
self.grid = None
self.entities = []
self.rooms = []
def create_grid(self, tileset):
"""Create the McRogueFace grid"""
self.grid = mcrfpy.Grid(grid_x=self.width, grid_y=self.height, texture=tileset)
self.grid.position = (100, 100)
self.grid.size = (800, 480)
# Enable perspective rendering
self.grid.perspective = 0
return self.grid
def fill_with_walls(self):
"""Fill the entire map with wall tiles"""
for y in range(self.height):
for x in range(self.width):
self.set_tile(x, y, walkable=False, transparent=False,
sprite_index=35, tile_type='wall')
def set_tile(self, x, y, walkable, transparent, sprite_index, tile_type):
"""Set properties for a specific tile"""
if 0 <= x < self.width and 0 <= y < self.height:
cell = self.grid.at(x, y)
cell.walkable = walkable
cell.transparent = transparent
cell.sprite_index = sprite_index
cell.color = mcrfpy.Color(*COLORS_VISIBLE[tile_type])
def generate_dungeon(self, max_rooms, room_min_size, room_max_size, player, max_enemies_per_room):
"""Generate a new dungeon map"""
self.fill_with_walls()
for r in range(max_rooms):
room_width = random.randint(room_min_size, room_max_size)
room_height = random.randint(room_min_size, room_max_size)
x = random.randint(0, self.width - room_width - 1)
y = random.randint(0, self.height - room_height - 1)
new_room = RectangularRoom(x, y, room_width, room_height)
if any(new_room.intersects(other_room) for other_room in self.rooms):
continue
self.carve_room(new_room)
if len(self.rooms) == 0:
# First room - place player
player.x, player.y = new_room.center
if player._entity:
player._entity.x, player._entity.y = new_room.center
else:
# All other rooms - add tunnel and enemies
self.carve_tunnel(self.rooms[-1].center, new_room.center)
spawn_enemies_in_room(new_room, self, max_enemies_per_room)
self.rooms.append(new_room)
def carve_room(self, room):
"""Carve out a room"""
inner_x1, inner_y1, inner_x2, inner_y2 = room.inner
for y in range(inner_y1, inner_y2):
for x in range(inner_x1, inner_x2):
self.set_tile(x, y, walkable=True, transparent=True,
sprite_index=46, tile_type='floor')
def carve_tunnel(self, start, end):
"""Carve a tunnel between two points"""
for x, y in tunnel_between(start, end):
self.set_tile(x, y, walkable=True, transparent=True,
sprite_index=46, tile_type='tunnel')
def get_blocking_entity_at(self, x, y):
"""Return any blocking entity at the given position"""
for entity in self.entities:
if entity.blocks and entity.x == x and entity.y == y:
return entity
return None
def is_blocked(self, x, y):
"""Check if a tile blocks movement"""
if x < 0 or x >= self.width or y < 0 or y >= self.height:
return True
if not self.grid.at(x, y).walkable:
return True
if self.get_blocking_entity_at(x, y):
return True
return False
def add_entity(self, entity):
"""Add a GameObject to the map"""
self.entities.append(entity)
entity.attach_to_grid(self.grid)
class Engine:
"""Main game engine"""
def __init__(self):
self.game_map = None
self.player = None
self.entities = []
self.messages = [] # Simple message log
self.max_messages = 5
mcrfpy.createScene("game")
mcrfpy.setScene("game")
window = mcrfpy.Window.get()
window.title = "McRogueFace Roguelike - Part 6"
self.ui = mcrfpy.sceneUI("game")
background = mcrfpy.Frame((0, 0), (1024, 768))
background.fill_color = mcrfpy.Color(0, 0, 0)
self.ui.append(background)
self.tileset = mcrfpy.Texture("assets/sprites/ascii_tileset.png", 16, 16)
self.setup_game()
self.setup_input()
self.setup_ui()
def add_message(self, text, color=(255, 255, 255)):
"""Add a message to the log"""
self.messages.append((text, color))
if len(self.messages) > self.max_messages:
self.messages.pop(0)
self.update_message_display()
def update_message_display(self):
"""Update the message display"""
# Clear old messages
for caption in self.message_captions:
# Remove from UI (McRogueFace doesn't have remove, so we hide it)
caption.text = ""
# Display current messages
for i, (text, color) in enumerate(self.messages):
if i < len(self.message_captions):
self.message_captions[i].text = text
self.message_captions[i].fill_color = mcrfpy.Color(*color)
def setup_game(self):
"""Initialize the game world"""
self.game_map = GameMap(80, 45)
grid = self.game_map.create_grid(self.tileset)
self.ui.append(grid)
# Create player
self.player = create_player(0, 0)
# Generate the dungeon
self.game_map.generate_dungeon(
max_rooms=30,
room_min_size=6,
room_max_size=10,
player=self.player,
max_enemies_per_room=2
)
# Add player to map
self.game_map.add_entity(self.player)
# Store reference to all entities
self.entities = [e for e in self.game_map.entities if e != self.player]
# Initial FOV calculation
self.player.update_fov()
# Welcome message
self.add_message("Welcome to the dungeon!", (100, 100, 255))
def handle_player_turn(self, action):
"""Process the player's action"""
if not self.player.is_alive:
return
if isinstance(action, MovementAction):
dest_x = self.player.x + action.dx
dest_y = self.player.y + action.dy
# Check what's at the destination
target = self.game_map.get_blocking_entity_at(dest_x, dest_y)
if target:
# Attack!
attack = MeleeAction(self.player, target)
result = attack.perform()
if result:
text, color = result
self.add_message(text, color)
# Check if target died
if not target.is_alive:
death_msg = f"The {target.name.replace('remains of ', '')} is dead!"
self.add_message(death_msg, COLOR_ENEMY_DIE)
elif not self.game_map.is_blocked(dest_x, dest_y):
# Move the player
self.player.move(action.dx, action.dy)
elif isinstance(action, WaitAction):
pass # Do nothing
# Enemy turns
self.handle_enemy_turns()
def handle_enemy_turns(self):
"""Let all enemies take their turn"""
for entity in self.entities:
if entity.is_alive:
# Simple AI: if player is adjacent, attack. Otherwise, do nothing.
dx = entity.x - self.player.x
dy = entity.y - self.player.y
distance = abs(dx) + abs(dy)
if distance == 1: # Adjacent to player
attack = MeleeAction(entity, self.player)
result = attack.perform()
if result:
text, color = result
self.add_message(text, color)
# Check if player died
if not self.player.is_alive:
self.add_message("You have died!", COLOR_PLAYER_DIE)
def setup_input(self):
"""Setup keyboard input handling"""
def handle_keys(key, state):
if state != "start":
return
action = None
# Movement keys
movement = {
"Up": (0, -1), "Down": (0, 1),
"Left": (-1, 0), "Right": (1, 0),
"Num7": (-1, -1), "Num8": (0, -1), "Num9": (1, -1),
"Num4": (-1, 0), "Num5": (0, 0), "Num6": (1, 0),
"Num1": (-1, 1), "Num2": (0, 1), "Num3": (1, 1),
}
if key in movement:
dx, dy = movement[key]
if dx == 0 and dy == 0:
action = WaitAction()
else:
action = MovementAction(dx, dy)
elif key == "Period":
action = WaitAction()
elif key == "Escape":
mcrfpy.setScene(None)
return
# Process the action
if action:
self.handle_player_turn(action)
mcrfpy.keypressScene(handle_keys)
def setup_ui(self):
"""Setup UI elements"""
title = mcrfpy.Caption("Combat System", 512, 30)
title.font_size = 24
title.fill_color = mcrfpy.Color(255, 255, 100)
self.ui.append(title)
instructions = mcrfpy.Caption("Attack enemies by bumping into them!", 512, 60)
instructions.font_size = 16
instructions.fill_color = mcrfpy.Color(200, 200, 200)
self.ui.append(instructions)
# Player stats
self.hp_text = mcrfpy.Caption(f"HP: {self.player.hp}/{self.player.max_hp}", 50, 100)
self.hp_text.font_size = 18
self.hp_text.fill_color = mcrfpy.Color(255, 100, 100)
self.ui.append(self.hp_text)
# Message log
self.message_captions = []
for i in range(self.max_messages):
caption = mcrfpy.Caption("", 50, 620 + i * 20)
caption.font_size = 14
caption.fill_color = mcrfpy.Color(200, 200, 200)
self.ui.append(caption)
self.message_captions.append(caption)
# Timer to update HP display
def update_stats(dt):
self.hp_text.text = f"HP: {self.player.hp}/{self.player.max_hp}"
if self.player.hp <= 0:
self.hp_text.fill_color = mcrfpy.Color(127, 0, 0)
elif self.player.hp < self.player.max_hp // 3:
self.hp_text.fill_color = mcrfpy.Color(255, 100, 100)
else:
self.hp_text.fill_color = mcrfpy.Color(0, 255, 0)
mcrfpy.setTimer("update_stats", update_stats, 100)
# Create and run the game
engine = Engine()
print("Part 6: Combat System!")
print("Attack enemies to defeat them, but watch your HP!")

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"""
McRogueFace Tutorial - Part 0: Introduction to Scene, Texture, and Grid
This tutorial introduces the basic building blocks:
- Scene: A container for UI elements and game state
- Texture: Loading image assets for use in the game
- Grid: A tilemap component for rendering tile-based worlds
"""
import mcrfpy
import random
# Create and activate a new scene
mcrfpy.createScene("tutorial")
mcrfpy.setScene("tutorial")
# Load the texture (4x3 tiles, 64x48 pixels total, 16x16 per tile)
texture = mcrfpy.Texture("assets/tutorial2.png", 16, 16)
# Create a grid of tiles
# Each tile is 16x16 pixels, so with 3x zoom: 16*3 = 48 pixels per tile
grid_width, grid_height = 25, 20 # width, height in number of tiles
# calculating the size in pixels to fit the entire grid on-screen
zoom = 2.0
grid_size = grid_width * zoom * 16, grid_height * zoom * 16
# calculating the position to center the grid on the screen - assuming default 1024x768 resolution
grid_position = (1024 - grid_size[0]) / 2, (768 - grid_size[1]) / 2
grid = mcrfpy.Grid(
pos=grid_position,
grid_size=(grid_width, grid_height),
texture=texture,
size=grid_size, # height and width on screen
)
grid.zoom = zoom
grid.center = (grid_width/2.0)*16, (grid_height/2.0)*16 # center on the middle of the central tile
# Define tile types
FLOOR_TILES = [0, 1, 2, 4, 5, 6, 8, 9, 10]
WALL_TILES = [3, 7, 11]
# Fill the grid with a simple pattern
for y in range(grid_height):
for x in range(grid_width):
# Create walls around the edges
if x == 0 or x == grid_width-1 or y == 0 or y == grid_height-1:
tile_index = random.choice(WALL_TILES)
else:
# Fill interior with floor tiles
tile_index = random.choice(FLOOR_TILES)
# Set the tile at this position
point = grid.at(x, y)
if point:
point.tilesprite = tile_index
# Add the grid to the scene
mcrfpy.sceneUI("tutorial").append(grid)
# Add a title caption
title = mcrfpy.Caption((320, 10),
text="McRogueFace Tutorial - Part 0",
)
title.fill_color = mcrfpy.Color(255, 255, 255, 255)
mcrfpy.sceneUI("tutorial").append(title)
# Add instructions
instructions = mcrfpy.Caption((280, 750),
text="Scene + Texture + Grid = Tilemap!",
)
instructions.font_size=18
instructions.fill_color = mcrfpy.Color(200, 200, 200, 255)
mcrfpy.sceneUI("tutorial").append(instructions)
print("Tutorial Part 0 loaded!")
print(f"Created a {grid.grid_size[0]}x{grid.grid_size[1]} grid")
print(f"Grid positioned at ({grid.x}, {grid.y})")

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"""
McRogueFace Tutorial - Part 1: Entities and Keyboard Input
This tutorial builds on Part 0 by adding:
- Entity: A game object that can be placed in a grid
- Keyboard handling: Responding to key presses to move the entity
"""
import mcrfpy
import random
# Create and activate a new scene
mcrfpy.createScene("tutorial")
mcrfpy.setScene("tutorial")
# Load the texture (4x3 tiles, 64x48 pixels total, 16x16 per tile)
texture = mcrfpy.Texture("assets/tutorial2.png", 16, 16)
# Load the hero sprite texture (32x32 sprite sheet)
hero_texture = mcrfpy.Texture("assets/custom_player.png", 16, 16)
# Create a grid of tiles
# Each tile is 16x16 pixels, so with 3x zoom: 16*3 = 48 pixels per tile
grid_width, grid_height = 25, 20 # width, height in number of tiles
# calculating the size in pixels to fit the entire grid on-screen
zoom = 2.0
grid_size = grid_width * zoom * 16, grid_height * zoom * 16
# calculating the position to center the grid on the screen - assuming default 1024x768 resolution
grid_position = (1024 - grid_size[0]) / 2, (768 - grid_size[1]) / 2
grid = mcrfpy.Grid(
pos=grid_position,
grid_size=(grid_width, grid_height),
texture=texture,
size=grid_size, # height and width on screen
)
grid.zoom = zoom
grid.center = (grid_width/2.0)*16, (grid_height/2.0)*16 # center on the middle of the central tile
# Define tile types
FLOOR_TILES = [0, 1, 2, 4, 5, 6, 8, 9, 10]
WALL_TILES = [3, 7, 11]
# Fill the grid with a simple pattern
for y in range(grid_height):
for x in range(grid_width):
# Create walls around the edges
if x == 0 or x == grid_width-1 or y == 0 or y == grid_height-1:
tile_index = random.choice(WALL_TILES)
else:
# Fill interior with floor tiles
tile_index = random.choice(FLOOR_TILES)
# Set the tile at this position
point = grid.at(x, y)
if point:
point.tilesprite = tile_index
# Add the grid to the scene
mcrfpy.sceneUI("tutorial").append(grid)
# Create a player entity at position (4, 4)
player = mcrfpy.Entity(
(4, 4), # Entity positions are tile coordinates
texture=hero_texture,
sprite_index=0 # Use the first sprite in the texture
)
# Add the player entity to the grid
grid.entities.append(player)
# Define keyboard handler
def handle_keys(key, state):
"""Handle keyboard input to move the player"""
if state == "start": # Only respond to key press, not release
# Get current player position in grid coordinates
px, py = player.x, player.y
# Calculate new position based on key press
if key == "W" or key == "Up":
py -= 1
elif key == "S" or key == "Down":
py += 1
elif key == "A" or key == "Left":
px -= 1
elif key == "D" or key == "Right":
px += 1
# Update player position (no collision checking yet)
player.x = px
player.y = py
# Register the keyboard handler
mcrfpy.keypressScene(handle_keys)
# Add a title caption
title = mcrfpy.Caption((320, 10),
text="McRogueFace Tutorial - Part 1",
)
title.fill_color = mcrfpy.Color(255, 255, 255, 255)
mcrfpy.sceneUI("tutorial").append(title)
# Add instructions
instructions = mcrfpy.Caption((200, 750),
text="Use WASD or Arrow Keys to move the hero!",
)
instructions.font_size=18
instructions.fill_color = mcrfpy.Color(200, 200, 200, 255)
mcrfpy.sceneUI("tutorial").append(instructions)
print("Tutorial Part 1 loaded!")
print(f"Player entity created at grid position (4, 4)")
print("Use WASD or Arrow keys to move!")

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"""
McRogueFace Tutorial - Part 1: Entities and Keyboard Input
This tutorial builds on Part 0 by adding:
- Entity: A game object that can be placed in a grid
- Keyboard handling: Responding to key presses to move the entity
"""
import mcrfpy
import random
# Create and activate a new scene
mcrfpy.createScene("tutorial")
mcrfpy.setScene("tutorial")
# Load the texture (4x3 tiles, 64x48 pixels total, 16x16 per tile)
texture = mcrfpy.Texture("assets/tutorial2.png", 16, 16)
# Load the hero sprite texture (32x32 sprite sheet)
hero_texture = mcrfpy.Texture("assets/custom_player.png", 16, 16)
# Create a grid of tiles
# Each tile is 16x16 pixels, so with 3x zoom: 16*3 = 48 pixels per tile
grid_width, grid_height = 25, 20 # width, height in number of tiles
# calculating the size in pixels to fit the entire grid on-screen
zoom = 2.0
grid_size = grid_width * zoom * 16, grid_height * zoom * 16
# calculating the position to center the grid on the screen - assuming default 1024x768 resolution
grid_position = (1024 - grid_size[0]) / 2, (768 - grid_size[1]) / 2
grid = mcrfpy.Grid(
pos=grid_position,
grid_size=(grid_width, grid_height),
texture=texture,
size=grid_size, # height and width on screen
)
grid.zoom = 3.0 # we're not using the zoom variable! It's going to be really big!
# Define tile types
FLOOR_TILES = [0, 1, 2, 4, 5, 6, 8, 9, 10]
WALL_TILES = [3, 7, 11]
# Fill the grid with a simple pattern
for y in range(grid_height):
for x in range(grid_width):
# Create walls around the edges
if x == 0 or x == grid_width-1 or y == 0 or y == grid_height-1:
tile_index = random.choice(WALL_TILES)
else:
# Fill interior with floor tiles
tile_index = random.choice(FLOOR_TILES)
# Set the tile at this position
point = grid.at(x, y)
if point:
point.tilesprite = tile_index
# Add the grid to the scene
mcrfpy.sceneUI("tutorial").append(grid)
# Create a player entity at position (4, 4)
player = mcrfpy.Entity(
(4, 4), # Entity positions are tile coordinates
texture=hero_texture,
sprite_index=0 # Use the first sprite in the texture
)
# Add the player entity to the grid
grid.entities.append(player)
grid.center = (player.x + 0.5) * 16, (player.y + 0.5) * 16 # grid center is in texture/pixel coordinates
# Define keyboard handler
def handle_keys(key, state):
"""Handle keyboard input to move the player"""
if state == "start": # Only respond to key press, not release
# Get current player position in grid coordinates
px, py = player.x, player.y
# Calculate new position based on key press
if key == "W" or key == "Up":
py -= 1
elif key == "S" or key == "Down":
py += 1
elif key == "A" or key == "Left":
px -= 1
elif key == "D" or key == "Right":
px += 1
# Update player position (no collision checking yet)
player.x = px
player.y = py
grid.center = (player.x + 0.5) * 16, (player.y + 0.5) * 16 # grid center is in texture/pixel coordinates
# Register the keyboard handler
mcrfpy.keypressScene(handle_keys)
# Add a title caption
title = mcrfpy.Caption((320, 10),
text="McRogueFace Tutorial - Part 1",
)
title.fill_color = mcrfpy.Color(255, 255, 255, 255)
mcrfpy.sceneUI("tutorial").append(title)
# Add instructions
instructions = mcrfpy.Caption((200, 750),
text="Use WASD or Arrow Keys to move the hero!",
)
instructions.font_size=18
instructions.fill_color = mcrfpy.Color(200, 200, 200, 255)
mcrfpy.sceneUI("tutorial").append(instructions)
print("Tutorial Part 1 loaded!")
print(f"Player entity created at grid position (4, 4)")
print("Use WASD or Arrow keys to move!")

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"""
McRogueFace Tutorial - Part 2: Animated Movement
This tutorial builds on Part 1 by adding:
- Animation system for smooth movement
- Movement that takes 0.5 seconds per tile
- Input blocking during movement animation
"""
import mcrfpy
import random
# Create and activate a new scene
mcrfpy.createScene("tutorial")
mcrfpy.setScene("tutorial")
# Load the texture (4x3 tiles, 64x48 pixels total, 16x16 per tile)
texture = mcrfpy.Texture("assets/tutorial2.png", 16, 16)
# Load the hero sprite texture (32x32 sprite sheet)
hero_texture = mcrfpy.Texture("assets/custom_player.png", 16, 16)
# Create a grid of tiles
# Each tile is 16x16 pixels, so with 3x zoom: 16*3 = 48 pixels per tile
grid_width, grid_height = 25, 20 # width, height in number of tiles
# calculating the size in pixels to fit the entire grid on-screen
zoom = 2.0
grid_size = grid_width * zoom * 16, grid_height * zoom * 16
# calculating the position to center the grid on the screen - assuming default 1024x768 resolution
grid_position = (1024 - grid_size[0]) / 2, (768 - grid_size[1]) / 2
grid = mcrfpy.Grid(
pos=grid_position,
grid_size=(grid_width, grid_height),
texture=texture,
size=grid_size, # height and width on screen
)
grid.zoom = 3.0 # we're not using the zoom variable! It's going to be really big!
# Define tile types
FLOOR_TILES = [0, 1, 2, 4, 5, 6, 8, 9, 10]
WALL_TILES = [3, 7, 11]
# Fill the grid with a simple pattern
for y in range(grid_height):
for x in range(grid_width):
# Create walls around the edges
if x == 0 or x == grid_width-1 or y == 0 or y == grid_height-1:
tile_index = random.choice(WALL_TILES)
else:
# Fill interior with floor tiles
tile_index = random.choice(FLOOR_TILES)
# Set the tile at this position
point = grid.at(x, y)
if point:
point.tilesprite = tile_index
# Add the grid to the scene
mcrfpy.sceneUI("tutorial").append(grid)
# Create a player entity at position (4, 4)
player = mcrfpy.Entity(
(4, 4), # Entity positions are tile coordinates
texture=hero_texture,
sprite_index=0 # Use the first sprite in the texture
)
# Add the player entity to the grid
grid.entities.append(player)
grid.center = (player.x + 0.5) * 16, (player.y + 0.5) * 16 # grid center is in texture/pixel coordinates
# Movement state tracking
is_moving = False
move_animations = [] # Track active animations
# Animation completion callback
def movement_complete(runtime):
"""Called when movement animation completes"""
global is_moving
is_moving = False
# Ensure grid is centered on final position
grid.center = (player.x + 0.5) * 16, (player.y + 0.5) * 16
motion_speed = 0.30 # seconds per tile
# Define keyboard handler
def handle_keys(key, state):
"""Handle keyboard input to move the player"""
global is_moving, move_animations
if state == "start" and not is_moving: # Only respond to key press when not moving
# Get current player position in grid coordinates
px, py = player.x, player.y
new_x, new_y = px, py
# Calculate new position based on key press
if key == "W" or key == "Up":
new_y -= 1
elif key == "S" or key == "Down":
new_y += 1
elif key == "A" or key == "Left":
new_x -= 1
elif key == "D" or key == "Right":
new_x += 1
# If position changed, start movement animation
if new_x != px or new_y != py:
is_moving = True
# Create animations for player position
anim_x = mcrfpy.Animation("x", float(new_x), motion_speed, "easeInOutQuad")
anim_y = mcrfpy.Animation("y", float(new_y), motion_speed, "easeInOutQuad")
anim_x.start(player)
anim_y.start(player)
# Animate grid center to follow player
center_x = mcrfpy.Animation("center_x", (new_x + 0.5) * 16, motion_speed, "linear")
center_y = mcrfpy.Animation("center_y", (new_y + 0.5) * 16, motion_speed, "linear")
center_x.start(grid)
center_y.start(grid)
# Set a timer to mark movement as complete
mcrfpy.setTimer("move_complete", movement_complete, 500)
# Register the keyboard handler
mcrfpy.keypressScene(handle_keys)
# Add a title caption
title = mcrfpy.Caption((320, 10),
text="McRogueFace Tutorial - Part 2",
)
title.fill_color = mcrfpy.Color(255, 255, 255, 255)
mcrfpy.sceneUI("tutorial").append(title)
# Add instructions
instructions = mcrfpy.Caption((150, 750),
text="Smooth movement! Each step takes 0.5 seconds.",
)
instructions.font_size=18
instructions.fill_color = mcrfpy.Color(200, 200, 200, 255)
mcrfpy.sceneUI("tutorial").append(instructions)
print("Tutorial Part 2 loaded!")
print(f"Player entity created at grid position (4, 4)")
print("Movement is now animated over 0.5 seconds per tile!")
print("Use WASD or Arrow keys to move!")

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"""
McRogueFace Tutorial - Part 2: Enhanced with Single Move Queue
This tutorial builds on Part 2 by adding:
- Single queued move system for responsive input
- Debug display showing position and queue status
- Smooth continuous movement when keys are held
- Animation callbacks to prevent race conditions
"""
import mcrfpy
import random
# Create and activate a new scene
mcrfpy.createScene("tutorial")
mcrfpy.setScene("tutorial")
# Load the texture (4x3 tiles, 64x48 pixels total, 16x16 per tile)
texture = mcrfpy.Texture("assets/tutorial2.png", 16, 16)
# Load the hero sprite texture (32x32 sprite sheet)
hero_texture = mcrfpy.Texture("assets/custom_player.png", 16, 16)
# Create a grid of tiles
# Each tile is 16x16 pixels, so with 3x zoom: 16*3 = 48 pixels per tile
grid_width, grid_height = 25, 20 # width, height in number of tiles
# calculating the size in pixels to fit the entire grid on-screen
zoom = 2.0
grid_size = grid_width * zoom * 16, grid_height * zoom * 16
# calculating the position to center the grid on the screen - assuming default 1024x768 resolution
grid_position = (1024 - grid_size[0]) / 2, (768 - grid_size[1]) / 2
grid = mcrfpy.Grid(
pos=grid_position,
grid_size=(grid_width, grid_height),
texture=texture,
size=grid_size, # height and width on screen
)
grid.zoom = 3.0 # we're not using the zoom variable! It's going to be really big!
# Define tile types
FLOOR_TILES = [0, 1, 2, 4, 5, 6, 8, 9, 10]
WALL_TILES = [3, 7, 11]
# Fill the grid with a simple pattern
for y in range(grid_height):
for x in range(grid_width):
# Create walls around the edges
if x == 0 or x == grid_width-1 or y == 0 or y == grid_height-1:
tile_index = random.choice(WALL_TILES)
else:
# Fill interior with floor tiles
tile_index = random.choice(FLOOR_TILES)
# Set the tile at this position
point = grid.at(x, y)
if point:
point.tilesprite = tile_index
# Add the grid to the scene
mcrfpy.sceneUI("tutorial").append(grid)
# Create a player entity at position (4, 4)
player = mcrfpy.Entity(
(4, 4), # Entity positions are tile coordinates
texture=hero_texture,
sprite_index=0 # Use the first sprite in the texture
)
# Add the player entity to the grid
grid.entities.append(player)
grid.center = (player.x + 0.5) * 16, (player.y + 0.5) * 16 # grid center is in texture/pixel coordinates
# Movement state tracking
is_moving = False
move_queue = [] # List to store queued moves (max 1 item)
#last_position = (4, 4) # Track last position
current_destination = None # Track where we're currently moving to
current_move = None # Track current move direction
# Store animation references
player_anim_x = None
player_anim_y = None
grid_anim_x = None
grid_anim_y = None
# Debug display caption
debug_caption = mcrfpy.Caption((10, 40),
text="Last: (4, 4) | Queue: 0 | Dest: None",
)
debug_caption.font_size = 16
debug_caption.fill_color = mcrfpy.Color(255, 255, 0, 255)
mcrfpy.sceneUI("tutorial").append(debug_caption)
# Additional debug caption for movement state
move_debug_caption = mcrfpy.Caption((10, 60),
text="Moving: False | Current: None | Queued: None",
)
move_debug_caption.font_size = 16
move_debug_caption.fill_color = mcrfpy.Color(255, 200, 0, 255)
mcrfpy.sceneUI("tutorial").append(move_debug_caption)
def key_to_direction(key):
"""Convert key to direction string"""
if key == "W" or key == "Up":
return "Up"
elif key == "S" or key == "Down":
return "Down"
elif key == "A" or key == "Left":
return "Left"
elif key == "D" or key == "Right":
return "Right"
return None
def update_debug_display():
"""Update the debug caption with current state"""
queue_count = len(move_queue)
dest_text = f"({current_destination[0]}, {current_destination[1]})" if current_destination else "None"
debug_caption.text = f"Last: ({player.x}, {player.y}) | Queue: {queue_count} | Dest: {dest_text}"
# Update movement state debug
current_dir = key_to_direction(current_move) if current_move else "None"
queued_dir = key_to_direction(move_queue[0]) if move_queue else "None"
move_debug_caption.text = f"Moving: {is_moving} | Current: {current_dir} | Queued: {queued_dir}"
# Animation completion callback
def movement_complete(anim, target):
"""Called when movement animation completes"""
global is_moving, move_queue, current_destination, current_move
global player_anim_x, player_anim_y
print(f"In callback for animation: {anim=} {target=}")
# Clear movement state
is_moving = False
current_move = None
current_destination = None
# Clear animation references
player_anim_x = None
player_anim_y = None
# Update last position to where we actually are now
#last_position = (int(player.x), int(player.y))
# Ensure grid is centered on final position
grid.center = (player.x + 0.5) * 16, (player.y + 0.5) * 16
# Check if there's a queued move
if move_queue:
# Pop the next move from the queue
next_move = move_queue.pop(0)
print(f"Processing queued move: {next_move}")
# Process it like a fresh input
process_move(next_move)
update_debug_display()
motion_speed = 0.30 # seconds per tile
def process_move(key):
"""Process a move based on the key"""
global is_moving, current_move, current_destination, move_queue
global player_anim_x, player_anim_y, grid_anim_x, grid_anim_y
# If already moving, just update the queue
if is_moving:
print(f"process_move processing {key=} as a queued move (is_moving = True)")
# Clear queue and add new move (only keep 1 queued move)
move_queue.clear()
move_queue.append(key)
update_debug_display()
return
print(f"process_move processing {key=} as a new, immediate animation (is_moving = False)")
# Calculate new position from current position
px, py = int(player.x), int(player.y)
new_x, new_y = px, py
# Calculate new position based on key press (only one tile movement)
if key == "W" or key == "Up":
new_y -= 1
elif key == "S" or key == "Down":
new_y += 1
elif key == "A" or key == "Left":
new_x -= 1
elif key == "D" or key == "Right":
new_x += 1
# Start the move if position changed
if new_x != px or new_y != py:
is_moving = True
current_move = key
current_destination = (new_x, new_y)
# only animate a single axis, same callback from either
if new_x != px:
player_anim_x = mcrfpy.Animation("x", float(new_x), motion_speed, "easeInOutQuad", callback=movement_complete)
player_anim_x.start(player)
elif new_y != py:
player_anim_y = mcrfpy.Animation("y", float(new_y), motion_speed, "easeInOutQuad", callback=movement_complete)
player_anim_y.start(player)
# Animate grid center to follow player
grid_anim_x = mcrfpy.Animation("center_x", (new_x + 0.5) * 16, motion_speed, "linear")
grid_anim_y = mcrfpy.Animation("center_y", (new_y + 0.5) * 16, motion_speed, "linear")
grid_anim_x.start(grid)
grid_anim_y.start(grid)
update_debug_display()
# Define keyboard handler
def handle_keys(key, state):
"""Handle keyboard input to move the player"""
if state == "start":
# Only process movement keys
if key in ["W", "Up", "S", "Down", "A", "Left", "D", "Right"]:
print(f"handle_keys producing actual input: {key=}")
process_move(key)
# Register the keyboard handler
mcrfpy.keypressScene(handle_keys)
# Add a title caption
title = mcrfpy.Caption((320, 10),
text="McRogueFace Tutorial - Part 2 Enhanced",
)
title.fill_color = mcrfpy.Color(255, 255, 255, 255)
mcrfpy.sceneUI("tutorial").append(title)
# Add instructions
instructions = mcrfpy.Caption((150, 750),
text="One-move queue system with animation callbacks!",
)
instructions.font_size=18
instructions.fill_color = mcrfpy.Color(200, 200, 200, 255)
mcrfpy.sceneUI("tutorial").append(instructions)
print("Tutorial Part 2 Enhanced loaded!")
print(f"Player entity created at grid position (4, 4)")
print("Movement now uses animation callbacks to prevent race conditions!")
print("Use WASD or Arrow keys to move!")

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"""
McRogueFace Tutorial - Part 2: Animated Movement
This tutorial builds on Part 1 by adding:
- Animation system for smooth movement
- Movement that takes 0.5 seconds per tile
- Input blocking during movement animation
"""
import mcrfpy
import random
# Create and activate a new scene
mcrfpy.createScene("tutorial")
mcrfpy.setScene("tutorial")
# Load the texture (4x3 tiles, 64x48 pixels total, 16x16 per tile)
texture = mcrfpy.Texture("assets/tutorial2.png", 16, 16)
# Load the hero sprite texture (32x32 sprite sheet)
hero_texture = mcrfpy.Texture("assets/custom_player.png", 16, 16)
# Create a grid of tiles
# Each tile is 16x16 pixels, so with 3x zoom: 16*3 = 48 pixels per tile
grid_width, grid_height = 25, 20 # width, height in number of tiles
# calculating the size in pixels to fit the entire grid on-screen
zoom = 2.0
grid_size = grid_width * zoom * 16, grid_height * zoom * 16
# calculating the position to center the grid on the screen - assuming default 1024x768 resolution
grid_position = (1024 - grid_size[0]) / 2, (768 - grid_size[1]) / 2
grid = mcrfpy.Grid(
pos=grid_position,
grid_size=(grid_width, grid_height),
texture=texture,
size=grid_size, # height and width on screen
)
grid.zoom = 3.0 # we're not using the zoom variable! It's going to be really big!
# Define tile types
FLOOR_TILES = [0, 1, 2, 4, 5, 6, 8, 9, 10]
WALL_TILES = [3, 7, 11]
# Fill the grid with a simple pattern
for y in range(grid_height):
for x in range(grid_width):
# Create walls around the edges
if x == 0 or x == grid_width-1 or y == 0 or y == grid_height-1:
tile_index = random.choice(WALL_TILES)
else:
# Fill interior with floor tiles
tile_index = random.choice(FLOOR_TILES)
# Set the tile at this position
point = grid.at(x, y)
if point:
point.tilesprite = tile_index
# Add the grid to the scene
mcrfpy.sceneUI("tutorial").append(grid)
# Create a player entity at position (4, 4)
player = mcrfpy.Entity(
(4, 4), # Entity positions are tile coordinates
texture=hero_texture,
sprite_index=0 # Use the first sprite in the texture
)
# Add the player entity to the grid
grid.entities.append(player)
grid.center = (player.x + 0.5) * 16, (player.y + 0.5) * 16 # grid center is in texture/pixel coordinates
# Movement state tracking
is_moving = False
move_animations = [] # Track active animations
# Animation completion callback
def movement_complete(runtime):
"""Called when movement animation completes"""
global is_moving
is_moving = False
# Ensure grid is centered on final position
grid.center = (player.x + 0.5) * 16, (player.y + 0.5) * 16
motion_speed = 0.30 # seconds per tile
# Define keyboard handler
def handle_keys(key, state):
"""Handle keyboard input to move the player"""
global is_moving, move_animations
if state == "start" and not is_moving: # Only respond to key press when not moving
# Get current player position in grid coordinates
px, py = player.x, player.y
new_x, new_y = px, py
# Calculate new position based on key press
if key == "W" or key == "Up":
new_y -= 1
elif key == "S" or key == "Down":
new_y += 1
elif key == "A" or key == "Left":
new_x -= 1
elif key == "D" or key == "Right":
new_x += 1
# If position changed, start movement animation
if new_x != px or new_y != py:
is_moving = True
# Create animations for player position
anim_x = mcrfpy.Animation("x", float(new_x), motion_speed, "easeInOutQuad")
anim_y = mcrfpy.Animation("y", float(new_y), motion_speed, "easeInOutQuad")
anim_x.start(player)
anim_y.start(player)
# Animate grid center to follow player
center_x = mcrfpy.Animation("center_x", (new_x + 0.5) * 16, motion_speed, "linear")
center_y = mcrfpy.Animation("center_y", (new_y + 0.5) * 16, motion_speed, "linear")
center_x.start(grid)
center_y.start(grid)
# Set a timer to mark movement as complete
mcrfpy.setTimer("move_complete", movement_complete, 500)
# Register the keyboard handler
mcrfpy.keypressScene(handle_keys)
# Add a title caption
title = mcrfpy.Caption((320, 10),
text="McRogueFace Tutorial - Part 2",
)
title.fill_color = mcrfpy.Color(255, 255, 255, 255)
mcrfpy.sceneUI("tutorial").append(title)
# Add instructions
instructions = mcrfpy.Caption((150, 750),
"Smooth movement! Each step takes 0.5 seconds.",
)
instructions.font_size=18
instructions.fill_color = mcrfpy.Color(200, 200, 200, 255)
mcrfpy.sceneUI("tutorial").append(instructions)
print("Tutorial Part 2 loaded!")
print(f"Player entity created at grid position (4, 4)")
print("Movement is now animated over 0.5 seconds per tile!")
print("Use WASD or Arrow keys to move!")

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@ -1,313 +0,0 @@
"""
McRogueFace Tutorial - Part 3: Procedural Dungeon Generation
This tutorial builds on Part 2 by adding:
- Binary Space Partition (BSP) dungeon generation
- Rooms connected by hallways using libtcod.line()
- Walkable/non-walkable terrain
- Player spawning in a valid location
- Wall tiles that block movement
Key code references:
- src/scripts/cos_level.py (lines 7-15, 184-217, 218-224) - BSP algorithm
- mcrfpy.libtcod.line() for smooth hallway generation
"""
import mcrfpy
import random
# Create and activate a new scene
mcrfpy.createScene("tutorial")
mcrfpy.setScene("tutorial")
# Load the texture (4x3 tiles, 64x48 pixels total, 16x16 per tile)
texture = mcrfpy.Texture("assets/tutorial2.png", 16, 16)
# Load the hero sprite texture
hero_texture = mcrfpy.Texture("assets/custom_player.png", 16, 16)
# Create a grid of tiles
grid_width, grid_height = 40, 30 # Larger grid for dungeon
# Calculate the size in pixels to fit the entire grid on-screen
zoom = 2.0
grid_size = grid_width * zoom * 16, grid_height * zoom * 16
# Calculate the position to center the grid on the screen
grid_position = (1024 - grid_size[0]) / 2, (768 - grid_size[1]) / 2
# Create the grid with a TCODMap for pathfinding/FOV
grid = mcrfpy.Grid(
pos=grid_position,
grid_size=(grid_width, grid_height),
texture=texture,
size=grid_size,
)
grid.zoom = zoom
# Define tile types
FLOOR_TILES = [0, 1, 2, 4, 5, 6, 8, 9, 10]
WALL_TILES = [3, 7, 11]
# Room class for BSP
class Room:
def __init__(self, x, y, w, h):
self.x1 = x
self.y1 = y
self.x2 = x + w
self.y2 = y + h
self.w = w
self.h = h
def center(self):
"""Return the center coordinates of the room"""
center_x = (self.x1 + self.x2) // 2
center_y = (self.y1 + self.y2) // 2
return (center_x, center_y)
def intersects(self, other):
"""Return True if this room overlaps with another"""
return (self.x1 <= other.x2 and self.x2 >= other.x1 and
self.y1 <= other.y2 and self.y2 >= other.y1)
# Dungeon generation functions
def carve_room(room):
"""Carve out a room in the grid - referenced from cos_level.py lines 117-120"""
# Using individual updates for now (batch updates would be more efficient)
for x in range(room.x1, room.x2):
for y in range(room.y1, room.y2):
if 0 <= x < grid_width and 0 <= y < grid_height:
point = grid.at(x, y)
if point:
point.tilesprite = random.choice(FLOOR_TILES)
point.walkable = True
point.transparent = True
def carve_hallway(x1, y1, x2, y2):
"""Carve a hallway between two points using libtcod.line()
Referenced from cos_level.py lines 184-217, improved with libtcod.line()
"""
# Get all points along the line
# Simple solution: works if your characters have diagonal movement
#points = mcrfpy.libtcod.line(x1, y1, x2, y2)
# We don't, so we're going to carve a path with an elbow in it
points = []
if random.choice([True, False]):
# x1,y1 -> x2,y1 -> x2,y2
points.extend(mcrfpy.libtcod.line(x1, y1, x2, y1))
points.extend(mcrfpy.libtcod.line(x2, y1, x2, y2))
else:
# x1,y1 -> x1,y2 -> x2,y2
points.extend(mcrfpy.libtcod.line(x1, y1, x1, y2))
points.extend(mcrfpy.libtcod.line(x1, y2, x2, y2))
# Carve out each point
for x, y in points:
if 0 <= x < grid_width and 0 <= y < grid_height:
point = grid.at(x, y)
if point:
point.tilesprite = random.choice(FLOOR_TILES)
point.walkable = True
point.transparent = True
def generate_dungeon(max_rooms=10, room_min_size=4, room_max_size=10):
"""Generate a dungeon using simplified BSP approach
Referenced from cos_level.py lines 218-224
"""
rooms = []
# First, fill everything with walls
for y in range(grid_height):
for x in range(grid_width):
point = grid.at(x, y)
if point:
point.tilesprite = random.choice(WALL_TILES)
point.walkable = False
point.transparent = False
# Generate rooms
for _ in range(max_rooms):
# Random room size
w = random.randint(room_min_size, room_max_size)
h = random.randint(room_min_size, room_max_size)
# Random position (with margin from edges)
x = random.randint(1, grid_width - w - 1)
y = random.randint(1, grid_height - h - 1)
new_room = Room(x, y, w, h)
# Check if it overlaps with existing rooms
failed = False
for other_room in rooms:
if new_room.intersects(other_room):
failed = True
break
if not failed:
# Carve out the room
carve_room(new_room)
# If not the first room, connect to previous room
if rooms:
# Get centers
prev_x, prev_y = rooms[-1].center()
new_x, new_y = new_room.center()
# Carve hallway using libtcod.line()
carve_hallway(prev_x, prev_y, new_x, new_y)
rooms.append(new_room)
return rooms
# Generate the dungeon
rooms = generate_dungeon(max_rooms=8, room_min_size=4, room_max_size=8)
# Add the grid to the scene
mcrfpy.sceneUI("tutorial").append(grid)
# Spawn player in the first room
if rooms:
spawn_x, spawn_y = rooms[0].center()
else:
# Fallback spawn position
spawn_x, spawn_y = 4, 4
# Create a player entity at the spawn position
player = mcrfpy.Entity(
(spawn_x, spawn_y),
texture=hero_texture,
sprite_index=0
)
# Add the player entity to the grid
grid.entities.append(player)
grid.center = (player.x + 0.5) * 16, (player.y + 0.5) * 16
# Movement state tracking (from Part 2)
is_moving = False
move_queue = []
current_destination = None
current_move = None
# Store animation references
player_anim_x = None
player_anim_y = None
grid_anim_x = None
grid_anim_y = None
def movement_complete(anim, target):
"""Called when movement animation completes"""
global is_moving, move_queue, current_destination, current_move
global player_anim_x, player_anim_y
is_moving = False
current_move = None
current_destination = None
player_anim_x = None
player_anim_y = None
grid.center = (player.x + 0.5) * 16, (player.y + 0.5) * 16
if move_queue:
next_move = move_queue.pop(0)
process_move(next_move)
motion_speed = 0.20 # Slightly faster for dungeon exploration
def can_move_to(x, y):
"""Check if a position is valid for movement"""
# Boundary check
if x < 0 or x >= grid_width or y < 0 or y >= grid_height:
return False
# Walkability check
point = grid.at(x, y)
if point and point.walkable:
return True
return False
def process_move(key):
"""Process a move based on the key"""
global is_moving, current_move, current_destination, move_queue
global player_anim_x, player_anim_y, grid_anim_x, grid_anim_y
if is_moving:
move_queue.clear()
move_queue.append(key)
return
px, py = int(player.x), int(player.y)
new_x, new_y = px, py
if key == "W" or key == "Up":
new_y -= 1
elif key == "S" or key == "Down":
new_y += 1
elif key == "A" or key == "Left":
new_x -= 1
elif key == "D" or key == "Right":
new_x += 1
# Check if we can move to the new position
if new_x != px or new_y != py:
if can_move_to(new_x, new_y):
is_moving = True
current_move = key
current_destination = (new_x, new_y)
if new_x != px:
player_anim_x = mcrfpy.Animation("x", float(new_x), motion_speed, "easeInOutQuad", callback=movement_complete)
player_anim_x.start(player)
elif new_y != py:
player_anim_y = mcrfpy.Animation("y", float(new_y), motion_speed, "easeInOutQuad", callback=movement_complete)
player_anim_y.start(player)
grid_anim_x = mcrfpy.Animation("center_x", (new_x + 0.5) * 16, motion_speed, "linear")
grid_anim_y = mcrfpy.Animation("center_y", (new_y + 0.5) * 16, motion_speed, "linear")
grid_anim_x.start(grid)
grid_anim_y.start(grid)
else:
# Play a "bump" sound or visual feedback here
print(f"Can't move to ({new_x}, {new_y}) - blocked!")
def handle_keys(key, state):
"""Handle keyboard input to move the player"""
if state == "start":
if key in ["W", "Up", "S", "Down", "A", "Left", "D", "Right"]:
process_move(key)
# Register the keyboard handler
mcrfpy.keypressScene(handle_keys)
# Add UI elements
title = mcrfpy.Caption((320, 10),
text="McRogueFace Tutorial - Part 3: Dungeon Generation",
)
title.fill_color = mcrfpy.Color(255, 255, 255, 255)
mcrfpy.sceneUI("tutorial").append(title)
instructions = mcrfpy.Caption((150, 750),
text=f"Procedural dungeon with {len(rooms)} rooms connected by hallways!",
)
instructions.font_size = 18
instructions.fill_color = mcrfpy.Color(200, 200, 200, 255)
mcrfpy.sceneUI("tutorial").append(instructions)
# Debug info
debug_caption = mcrfpy.Caption((10, 40),
text=f"Grid: {grid_width}x{grid_height} | Player spawned at ({spawn_x}, {spawn_y})",
)
debug_caption.font_size = 16
debug_caption.fill_color = mcrfpy.Color(255, 255, 0, 255)
mcrfpy.sceneUI("tutorial").append(debug_caption)
print("Tutorial Part 3 loaded!")
print(f"Generated dungeon with {len(rooms)} rooms")
print(f"Player spawned at ({spawn_x}, {spawn_y})")
print("Walls now block movement!")
print("Use WASD or Arrow keys to explore the dungeon!")

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"""
McRogueFace Tutorial - Part 4: Field of View
This tutorial builds on Part 3 by adding:
- Field of view calculation using grid.compute_fov()
- Entity perspective rendering with grid.perspective
- Three visibility states: unexplored (black), explored (dark), visible (lit)
- Memory of previously seen areas
- Enemy entity to demonstrate perspective switching
Key code references:
- tests/unit/test_tcod_fov_entities.py (lines 89-118) - FOV with multiple entities
- ROADMAP.md (lines 216-229) - FOV system implementation details
"""
import mcrfpy
import random
# Create and activate a new scene
mcrfpy.createScene("tutorial")
mcrfpy.setScene("tutorial")
# Load the texture (4x3 tiles, 64x48 pixels total, 16x16 per tile)
texture = mcrfpy.Texture("assets/tutorial2.png", 16, 16)
# Load the hero sprite texture
hero_texture = mcrfpy.Texture("assets/custom_player.png", 16, 16)
# Create a grid of tiles
grid_width, grid_height = 40, 30
# Calculate the size in pixels
zoom = 2.0
grid_size = grid_width * zoom * 16, grid_height * zoom * 16
# Calculate the position to center the grid on the screen
grid_position = (1024 - grid_size[0]) / 2, (768 - grid_size[1]) / 2
# Create the grid with a TCODMap for pathfinding/FOV
grid = mcrfpy.Grid(
pos=grid_position,
grid_size=(grid_width, grid_height),
texture=texture,
size=grid_size,
)
grid.zoom = zoom
# Define tile types
FLOOR_TILES = [0, 1, 2, 4, 5, 6, 8, 9, 10]
WALL_TILES = [3, 7, 11]
# Room class for BSP
class Room:
def __init__(self, x, y, w, h):
self.x1 = x
self.y1 = y
self.x2 = x + w
self.y2 = y + h
self.w = w
self.h = h
def center(self):
center_x = (self.x1 + self.x2) // 2
center_y = (self.y1 + self.y2) // 2
return (center_x, center_y)
def intersects(self, other):
return (self.x1 <= other.x2 and self.x2 >= other.x1 and
self.y1 <= other.y2 and self.y2 >= other.y1)
# Dungeon generation functions (from Part 3)
def carve_room(room):
for x in range(room.x1, room.x2):
for y in range(room.y1, room.y2):
if 0 <= x < grid_width and 0 <= y < grid_height:
point = grid.at(x, y)
if point:
point.tilesprite = random.choice(FLOOR_TILES)
point.walkable = True
point.transparent = True
def carve_hallway(x1, y1, x2, y2):
#points = mcrfpy.libtcod.line(x1, y1, x2, y2)
points = []
if random.choice([True, False]):
# x1,y1 -> x2,y1 -> x2,y2
points.extend(mcrfpy.libtcod.line(x1, y1, x2, y1))
points.extend(mcrfpy.libtcod.line(x2, y1, x2, y2))
else:
# x1,y1 -> x1,y2 -> x2,y2
points.extend(mcrfpy.libtcod.line(x1, y1, x1, y2))
points.extend(mcrfpy.libtcod.line(x1, y2, x2, y2))
for x, y in points:
if 0 <= x < grid_width and 0 <= y < grid_height:
point = grid.at(x, y)
if point:
point.tilesprite = random.choice(FLOOR_TILES)
point.walkable = True
point.transparent = True
def generate_dungeon(max_rooms=10, room_min_size=4, room_max_size=10):
rooms = []
# Fill with walls
for y in range(grid_height):
for x in range(grid_width):
point = grid.at(x, y)
if point:
point.tilesprite = random.choice(WALL_TILES)
point.walkable = False
point.transparent = False
# Generate rooms
for _ in range(max_rooms):
w = random.randint(room_min_size, room_max_size)
h = random.randint(room_min_size, room_max_size)
x = random.randint(1, grid_width - w - 1)
y = random.randint(1, grid_height - h - 1)
new_room = Room(x, y, w, h)
failed = False
for other_room in rooms:
if new_room.intersects(other_room):
failed = True
break
if not failed:
carve_room(new_room)
if rooms:
prev_x, prev_y = rooms[-1].center()
new_x, new_y = new_room.center()
carve_hallway(prev_x, prev_y, new_x, new_y)
rooms.append(new_room)
return rooms
# Generate the dungeon
rooms = generate_dungeon(max_rooms=8, room_min_size=4, room_max_size=8)
# Add the grid to the scene
mcrfpy.sceneUI("tutorial").append(grid)
# Spawn player in the first room
if rooms:
spawn_x, spawn_y = rooms[0].center()
else:
spawn_x, spawn_y = 4, 4
# Create a player entity
player = mcrfpy.Entity(
(spawn_x, spawn_y),
texture=hero_texture,
sprite_index=0
)
# Add the player entity to the grid
grid.entities.append(player)
# Create an enemy entity in another room (to demonstrate perspective switching)
enemy = None
if len(rooms) > 1:
enemy_x, enemy_y = rooms[1].center()
enemy = mcrfpy.Entity(
(enemy_x, enemy_y),
texture=hero_texture,
sprite_index=0 # Enemy sprite
)
grid.entities.append(enemy)
# Set the grid perspective to the player by default
# Note: The new perspective system uses entity references directly
grid.perspective = player
# Initial FOV computation
def update_fov():
"""Update field of view from current perspective
Referenced from test_tcod_fov_entities.py lines 89-118
"""
if grid.perspective == player:
grid.compute_fov(int(player.x), int(player.y), radius=8, algorithm=0)
player.update_visibility()
elif enemy and grid.perspective == enemy:
grid.compute_fov(int(enemy.x), int(enemy.y), radius=6, algorithm=0)
enemy.update_visibility()
# Perform initial FOV calculation
update_fov()
# Center grid on current perspective
def center_on_perspective():
if grid.perspective == player:
grid.center = (player.x + 0.5) * 16, (player.y + 0.5) * 16
elif enemy and grid.perspective == enemy:
grid.center = (enemy.x + 0.5) * 16, (enemy.y + 0.5) * 16
center_on_perspective()
# Movement state tracking (from Part 3)
is_moving = False
move_queue = []
current_destination = None
current_move = None
# Store animation references
player_anim_x = None
player_anim_y = None
grid_anim_x = None
grid_anim_y = None
def movement_complete(anim, target):
"""Called when movement animation completes"""
global is_moving, move_queue, current_destination, current_move
global player_anim_x, player_anim_y
is_moving = False
current_move = None
current_destination = None
player_anim_x = None
player_anim_y = None
# Update FOV after movement
update_fov()
center_on_perspective()
if move_queue:
next_move = move_queue.pop(0)
process_move(next_move)
motion_speed = 0.20
def can_move_to(x, y):
"""Check if a position is valid for movement"""
if x < 0 or x >= grid_width or y < 0 or y >= grid_height:
return False
point = grid.at(x, y)
if point and point.walkable:
return True
return False
def process_move(key):
"""Process a move based on the key"""
global is_moving, current_move, current_destination, move_queue
global player_anim_x, player_anim_y, grid_anim_x, grid_anim_y
# Only allow player movement when in player perspective
if grid.perspective != player:
return
if is_moving:
move_queue.clear()
move_queue.append(key)
return
px, py = int(player.x), int(player.y)
new_x, new_y = px, py
if key == "W" or key == "Up":
new_y -= 1
elif key == "S" or key == "Down":
new_y += 1
elif key == "A" or key == "Left":
new_x -= 1
elif key == "D" or key == "Right":
new_x += 1
if new_x != px or new_y != py:
if can_move_to(new_x, new_y):
is_moving = True
current_move = key
current_destination = (new_x, new_y)
if new_x != px:
player_anim_x = mcrfpy.Animation("x", float(new_x), motion_speed, "easeInOutQuad", callback=movement_complete)
player_anim_x.start(player)
elif new_y != py:
player_anim_y = mcrfpy.Animation("y", float(new_y), motion_speed, "easeInOutQuad", callback=movement_complete)
player_anim_y.start(player)
grid_anim_x = mcrfpy.Animation("center_x", (new_x + 0.5) * 16, motion_speed, "linear")
grid_anim_y = mcrfpy.Animation("center_y", (new_y + 0.5) * 16, motion_speed, "linear")
grid_anim_x.start(grid)
grid_anim_y.start(grid)
def handle_keys(key, state):
"""Handle keyboard input"""
if state == "start":
# Movement keys
if key in ["W", "Up", "S", "Down", "A", "Left", "D", "Right"]:
process_move(key)
# Perspective switching
elif key == "Tab":
# Switch perspective between player and enemy
if enemy:
if grid.perspective == player:
grid.perspective = enemy
print("Switched to enemy perspective")
else:
grid.perspective = player
print("Switched to player perspective")
# Update FOV and camera for new perspective
update_fov()
center_on_perspective()
# Register the keyboard handler
mcrfpy.keypressScene(handle_keys)
# Add UI elements
title = mcrfpy.Caption((320, 10),
text="McRogueFace Tutorial - Part 4: Field of View",
)
title.fill_color = mcrfpy.Color(255, 255, 255, 255)
mcrfpy.sceneUI("tutorial").append(title)
instructions = mcrfpy.Caption((150, 720),
text="Use WASD/Arrows to move. Press Tab to switch perspective!",
)
instructions.font_size = 18
instructions.fill_color = mcrfpy.Color(200, 200, 200, 255)
mcrfpy.sceneUI("tutorial").append(instructions)
# FOV info
fov_caption = mcrfpy.Caption((150, 745),
text="FOV: Player (radius 8) | Enemy visible in other room",
)
fov_caption.font_size = 16
fov_caption.fill_color = mcrfpy.Color(100, 200, 255, 255)
mcrfpy.sceneUI("tutorial").append(fov_caption)
# Debug info
debug_caption = mcrfpy.Caption((10, 40),
text=f"Grid: {grid_width}x{grid_height} | Rooms: {len(rooms)} | Perspective: Player",
)
debug_caption.font_size = 16
debug_caption.fill_color = mcrfpy.Color(255, 255, 0, 255)
mcrfpy.sceneUI("tutorial").append(debug_caption)
# Update function for perspective display
def update_perspective_display():
current_perspective = "Player" if grid.perspective == player else "Enemy"
debug_caption.text = f"Grid: {grid_width}x{grid_height} | Rooms: {len(rooms)} | Perspective: {current_perspective}"
if grid.perspective == player:
fov_caption.text = "FOV: Player (radius 8) | Tab to switch perspective"
else:
fov_caption.text = "FOV: Enemy (radius 6) | Tab to switch perspective"
# Timer to update display
def update_display(runtime):
update_perspective_display()
mcrfpy.setTimer("display_update", update_display, 100)
print("Tutorial Part 4 loaded!")
print("Field of View system active!")
print("- Unexplored areas are black")
print("- Previously seen areas are dark")
print("- Currently visible areas are lit")
print("Press Tab to switch between player and enemy perspective!")
print("Use WASD or Arrow keys to move!")

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@ -1,363 +0,0 @@
"""
McRogueFace Tutorial - Part 5: Interacting with other entities
This tutorial builds on Part 4 by adding:
- Subclassing mcrfpy.Entity
- Non-blocking movement animations with destination tracking
- Bump interactions (combat, pushing)
"""
import mcrfpy
import random
# Create and activate a new scene
mcrfpy.createScene("tutorial")
mcrfpy.setScene("tutorial")
# Load the texture (4x3 tiles, 64x48 pixels total, 16x16 per tile)
texture = mcrfpy.Texture("assets/tutorial2.png", 16, 16)
# Load the hero sprite texture
hero_texture = mcrfpy.Texture("assets/custom_player.png", 16, 16)
# Create a grid of tiles
grid_width, grid_height = 40, 30
# Calculate the size in pixels
zoom = 2.0
grid_size = grid_width * zoom * 16, grid_height * zoom * 16
# Calculate the position to center the grid on the screen
grid_position = (1024 - grid_size[0]) / 2, (768 - grid_size[1]) / 2
# Create the grid with a TCODMap for pathfinding/FOV
grid = mcrfpy.Grid(
pos=grid_position,
grid_size=(grid_width, grid_height),
texture=texture,
size=grid_size,
)
grid.zoom = zoom
# Define tile types
FLOOR_TILES = [0, 1, 2, 4, 5, 6, 8, 9, 10]
WALL_TILES = [3, 7, 11]
# Room class for BSP
class Room:
def __init__(self, x, y, w, h):
self.x1 = x
self.y1 = y
self.x2 = x + w
self.y2 = y + h
self.w = w
self.h = h
def center(self):
center_x = (self.x1 + self.x2) // 2
center_y = (self.y1 + self.y2) // 2
return (center_x, center_y)
def intersects(self, other):
return (self.x1 <= other.x2 and self.x2 >= other.x1 and
self.y1 <= other.y2 and self.y2 >= other.y1)
# Dungeon generation functions (from Part 3)
def carve_room(room):
for x in range(room.x1, room.x2):
for y in range(room.y1, room.y2):
if 0 <= x < grid_width and 0 <= y < grid_height:
point = grid.at(x, y)
if point:
point.tilesprite = random.choice(FLOOR_TILES)
point.walkable = True
point.transparent = True
def carve_hallway(x1, y1, x2, y2):
#points = mcrfpy.libtcod.line(x1, y1, x2, y2)
points = []
if random.choice([True, False]):
# x1,y1 -> x2,y1 -> x2,y2
points.extend(mcrfpy.libtcod.line(x1, y1, x2, y1))
points.extend(mcrfpy.libtcod.line(x2, y1, x2, y2))
else:
# x1,y1 -> x1,y2 -> x2,y2
points.extend(mcrfpy.libtcod.line(x1, y1, x1, y2))
points.extend(mcrfpy.libtcod.line(x1, y2, x2, y2))
for x, y in points:
if 0 <= x < grid_width and 0 <= y < grid_height:
point = grid.at(x, y)
if point:
point.tilesprite = random.choice(FLOOR_TILES)
point.walkable = True
point.transparent = True
def generate_dungeon(max_rooms=10, room_min_size=4, room_max_size=10):
rooms = []
# Fill with walls
for y in range(grid_height):
for x in range(grid_width):
point = grid.at(x, y)
if point:
point.tilesprite = random.choice(WALL_TILES)
point.walkable = False
point.transparent = False
# Generate rooms
for _ in range(max_rooms):
w = random.randint(room_min_size, room_max_size)
h = random.randint(room_min_size, room_max_size)
x = random.randint(1, grid_width - w - 1)
y = random.randint(1, grid_height - h - 1)
new_room = Room(x, y, w, h)
failed = False
for other_room in rooms:
if new_room.intersects(other_room):
failed = True
break
if not failed:
carve_room(new_room)
if rooms:
prev_x, prev_y = rooms[-1].center()
new_x, new_y = new_room.center()
carve_hallway(prev_x, prev_y, new_x, new_y)
rooms.append(new_room)
return rooms
# Generate the dungeon
rooms = generate_dungeon(max_rooms=8, room_min_size=4, room_max_size=8)
# Add the grid to the scene
mcrfpy.sceneUI("tutorial").append(grid)
# Spawn player in the first room
if rooms:
spawn_x, spawn_y = rooms[0].center()
else:
spawn_x, spawn_y = 4, 4
class GameEntity(mcrfpy.Entity):
"""An entity whose default behavior is to prevent others from moving into its tile."""
def __init__(self, x, y, walkable=False, **kwargs):
super().__init__(x=x, y=y, **kwargs)
self.walkable = walkable
self.dest_x = x
self.dest_y = y
self.is_moving = False
def get_position(self):
"""Get logical position (destination if moving, otherwise current)"""
if self.is_moving:
return (self.dest_x, self.dest_y)
return (int(self.x), int(self.y))
def on_bump(self, other):
return self.walkable # allow other's motion to proceed if entity is walkable
def __repr__(self):
return f"<{self.__class__.__name__} x={self.x}, y={self.y}, sprite_index={self.sprite_index}>"
class BumpableEntity(GameEntity):
def __init__(self, x, y, **kwargs):
super().__init__(x, y, **kwargs)
def on_bump(self, other):
print(f"Watch it, {other}! You bumped into {self}!")
return False
# Create a player entity
player = GameEntity(
spawn_x, spawn_y,
texture=hero_texture,
sprite_index=0
)
# Add the player entity to the grid
grid.entities.append(player)
for r in rooms:
enemy_x, enemy_y = r.center()
enemy = BumpableEntity(
enemy_x, enemy_y,
grid=grid,
texture=hero_texture,
sprite_index=0 # Enemy sprite
)
# Set the grid perspective to the player by default
# Note: The new perspective system uses entity references directly
grid.perspective = player
# Initial FOV computation
def update_fov():
"""Update field of view from current perspective
Referenced from test_tcod_fov_entities.py lines 89-118
"""
if grid.perspective == player:
grid.compute_fov(int(player.x), int(player.y), radius=8, algorithm=0)
player.update_visibility()
elif enemy and grid.perspective == enemy:
grid.compute_fov(int(enemy.x), int(enemy.y), radius=6, algorithm=0)
enemy.update_visibility()
# Perform initial FOV calculation
update_fov()
# Center grid on current perspective
def center_on_perspective():
if grid.perspective == player:
grid.center = (player.x + 0.5) * 16, (player.y + 0.5) * 16
elif enemy and grid.perspective == enemy:
grid.center = (enemy.x + 0.5) * 16, (enemy.y + 0.5) * 16
center_on_perspective()
# Movement state tracking (from Part 3)
#is_moving = False # make it an entity property
move_queue = []
current_destination = None
current_move = None
# Store animation references
player_anim_x = None
player_anim_y = None
grid_anim_x = None
grid_anim_y = None
def movement_complete(anim, target):
"""Called when movement animation completes"""
global move_queue, current_destination, current_move
global player_anim_x, player_anim_y
player.is_moving = False
current_move = None
current_destination = None
player_anim_x = None
player_anim_y = None
# Update FOV after movement
update_fov()
center_on_perspective()
if move_queue:
next_move = move_queue.pop(0)
process_move(next_move)
motion_speed = 0.20
def can_move_to(x, y):
"""Check if a position is valid for movement"""
if x < 0 or x >= grid_width or y < 0 or y >= grid_height:
return False
point = grid.at(x, y)
if point and point.walkable:
for e in grid.entities:
if not e.walkable and (x, y) == e.get_position(): # blocking the way
e.on_bump(player)
return False
return True # all checks passed, no collision
return False
def process_move(key):
"""Process a move based on the key"""
global current_move, current_destination, move_queue
global player_anim_x, player_anim_y, grid_anim_x, grid_anim_y
# Only allow player movement when in player perspective
if grid.perspective != player:
return
if player.is_moving:
move_queue.clear()
move_queue.append(key)
return
px, py = int(player.x), int(player.y)
new_x, new_y = px, py
if key == "W" or key == "Up":
new_y -= 1
elif key == "S" or key == "Down":
new_y += 1
elif key == "A" or key == "Left":
new_x -= 1
elif key == "D" or key == "Right":
new_x += 1
if new_x != px or new_y != py:
if can_move_to(new_x, new_y):
player.is_moving = True
current_move = key
current_destination = (new_x, new_y)
if new_x != px:
player_anim_x = mcrfpy.Animation("x", float(new_x), motion_speed, "easeInOutQuad", callback=movement_complete)
player_anim_x.start(player)
elif new_y != py:
player_anim_y = mcrfpy.Animation("y", float(new_y), motion_speed, "easeInOutQuad", callback=movement_complete)
player_anim_y.start(player)
grid_anim_x = mcrfpy.Animation("center_x", (new_x + 0.5) * 16, motion_speed, "linear")
grid_anim_y = mcrfpy.Animation("center_y", (new_y + 0.5) * 16, motion_speed, "linear")
grid_anim_x.start(grid)
grid_anim_y.start(grid)
def handle_keys(key, state):
"""Handle keyboard input"""
if state == "start":
# Movement keys
if key in ["W", "Up", "S", "Down", "A", "Left", "D", "Right"]:
process_move(key)
# Register the keyboard handler
mcrfpy.keypressScene(handle_keys)
# Add UI elements
title = mcrfpy.Caption((320, 10),
text="McRogueFace Tutorial - Part 5: Entity Collision",
)
title.fill_color = mcrfpy.Color(255, 255, 255, 255)
mcrfpy.sceneUI("tutorial").append(title)
instructions = mcrfpy.Caption((150, 720),
text="Use WASD/Arrows to move. Try to bump into the other entity!",
)
instructions.font_size = 18
instructions.fill_color = mcrfpy.Color(200, 200, 200, 255)
mcrfpy.sceneUI("tutorial").append(instructions)
# Debug info
debug_caption = mcrfpy.Caption((10, 40),
text=f"Grid: {grid_width}x{grid_height} | Rooms: {len(rooms)} | Perspective: Player",
)
debug_caption.font_size = 16
debug_caption.fill_color = mcrfpy.Color(255, 255, 0, 255)
mcrfpy.sceneUI("tutorial").append(debug_caption)
# Update function for perspective display
def update_perspective_display():
current_perspective = "Player" if grid.perspective == player else "Enemy"
debug_caption.text = f"Grid: {grid_width}x{grid_height} | Rooms: {len(rooms)} | Perspective: {current_perspective}"
# Timer to update display
def update_display(runtime):
update_perspective_display()
mcrfpy.setTimer("display_update", update_display, 100)
print("Tutorial Part 4 loaded!")
print("Field of View system active!")
print("- Unexplored areas are black")
print("- Previously seen areas are dark")
print("- Currently visible areas are lit")
print("Press Tab to switch between player and enemy perspective!")
print("Use WASD or Arrow keys to move!")

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@ -1,645 +0,0 @@
"""
McRogueFace Tutorial - Part 6: Turn-based enemy movement
This tutorial builds on Part 5 by adding:
- Turn cycles where enemies move after the player
- Enemy AI that pursues or wanders
- Shared collision detection for all entities
"""
import mcrfpy
import random
# Create and activate a new scene
mcrfpy.createScene("tutorial")
mcrfpy.setScene("tutorial")
# Load the texture (4x3 tiles, 64x48 pixels total, 16x16 per tile)
texture = mcrfpy.Texture("assets/tutorial2.png", 16, 16)
# Load the hero sprite texture
hero_texture = mcrfpy.Texture("assets/custom_player.png", 16, 16)
# Create a grid of tiles
grid_width, grid_height = 40, 30
# Calculate the size in pixels
zoom = 2.0
grid_size = grid_width * zoom * 16, grid_height * zoom * 16
# Calculate the position to center the grid on the screen
grid_position = (1024 - grid_size[0]) / 2, (768 - grid_size[1]) / 2
# Create the grid with a TCODMap for pathfinding/FOV
grid = mcrfpy.Grid(
pos=grid_position,
grid_size=(grid_width, grid_height),
texture=texture,
size=grid_size,
)
grid.zoom = zoom
# Define tile types
FLOOR_TILES = [0, 1, 2, 4, 5, 6, 8, 9, 10]
WALL_TILES = [3, 7, 11]
# Room class for BSP
class Room:
def __init__(self, x, y, w, h):
self.x1 = x
self.y1 = y
self.x2 = x + w
self.y2 = y + h
self.w = w
self.h = h
def center(self):
center_x = (self.x1 + self.x2) // 2
center_y = (self.y1 + self.y2) // 2
return (center_x, center_y)
def intersects(self, other):
return (self.x1 <= other.x2 and self.x2 >= other.x1 and
self.y1 <= other.y2 and self.y2 >= other.y1)
# Dungeon generation functions (from Part 3)
def carve_room(room):
for x in range(room.x1, room.x2):
for y in range(room.y1, room.y2):
if 0 <= x < grid_width and 0 <= y < grid_height:
point = grid.at(x, y)
if point:
point.tilesprite = random.choice(FLOOR_TILES)
point.walkable = True
point.transparent = True
def carve_hallway(x1, y1, x2, y2):
#points = mcrfpy.libtcod.line(x1, y1, x2, y2)
points = []
if random.choice([True, False]):
# x1,y1 -> x2,y1 -> x2,y2
points.extend(mcrfpy.libtcod.line(x1, y1, x2, y1))
points.extend(mcrfpy.libtcod.line(x2, y1, x2, y2))
else:
# x1,y1 -> x1,y2 -> x2,y2
points.extend(mcrfpy.libtcod.line(x1, y1, x1, y2))
points.extend(mcrfpy.libtcod.line(x1, y2, x2, y2))
for x, y in points:
if 0 <= x < grid_width and 0 <= y < grid_height:
point = grid.at(x, y)
if point:
point.tilesprite = random.choice(FLOOR_TILES)
point.walkable = True
point.transparent = True
def generate_dungeon(max_rooms=10, room_min_size=4, room_max_size=10):
rooms = []
# Fill with walls
for y in range(grid_height):
for x in range(grid_width):
point = grid.at(x, y)
if point:
point.tilesprite = random.choice(WALL_TILES)
point.walkable = False
point.transparent = False
# Generate rooms
for _ in range(max_rooms):
w = random.randint(room_min_size, room_max_size)
h = random.randint(room_min_size, room_max_size)
x = random.randint(1, grid_width - w - 1)
y = random.randint(1, grid_height - h - 1)
new_room = Room(x, y, w, h)
failed = False
for other_room in rooms:
if new_room.intersects(other_room):
failed = True
break
if not failed:
carve_room(new_room)
if rooms:
prev_x, prev_y = rooms[-1].center()
new_x, new_y = new_room.center()
carve_hallway(prev_x, prev_y, new_x, new_y)
rooms.append(new_room)
return rooms
# Generate the dungeon
rooms = generate_dungeon(max_rooms=8, room_min_size=4, room_max_size=8)
# Add the grid to the scene
mcrfpy.sceneUI("tutorial").append(grid)
# Spawn player in the first room
if rooms:
spawn_x, spawn_y = rooms[0].center()
else:
spawn_x, spawn_y = 4, 4
class GameEntity(mcrfpy.Entity):
"""An entity whose default behavior is to prevent others from moving into its tile."""
def __init__(self, x, y, walkable=False, **kwargs):
super().__init__(x=x, y=y, **kwargs)
self.walkable = walkable
self.dest_x = x
self.dest_y = y
self.is_moving = False
def get_position(self):
"""Get logical position (destination if moving, otherwise current)"""
if self.is_moving:
return (self.dest_x, self.dest_y)
return (int(self.x), int(self.y))
def on_bump(self, other):
return self.walkable # allow other's motion to proceed if entity is walkable
def __repr__(self):
return f"<{self.__class__.__name__} x={self.x}, y={self.y}, sprite_index={self.sprite_index}>"
class CombatEntity(GameEntity):
def __init__(self, x, y, hp=10, damage=(1,3), **kwargs):
super().__init__(x=x, y=y, **kwargs)
self.hp = hp
self.damage = damage
def is_dead(self):
return self.hp <= 0
def start_move(self, new_x, new_y, duration=0.2, callback=None):
"""Start animating movement to new position"""
self.dest_x = new_x
self.dest_y = new_y
self.is_moving = True
# Define completion callback that resets is_moving
def movement_done(anim, entity):
self.is_moving = False
if callback:
callback(anim, entity)
# Create animations for smooth movement
anim_x = mcrfpy.Animation("x", float(new_x), duration, "easeInOutQuad", callback=movement_done)
anim_y = mcrfpy.Animation("y", float(new_y), duration, "easeInOutQuad")
anim_x.start(self)
anim_y.start(self)
def can_see(self, target_x, target_y):
"""Check if this entity can see the target position"""
mx, my = self.get_position()
# Simple distance check first
dist = abs(target_x - mx) + abs(target_y - my)
if dist > 6:
return False
# Line of sight check
line = list(mcrfpy.libtcod.line(mx, my, target_x, target_y))
for x, y in line[1:-1]: # Skip start and end
cell = grid.at(x, y)
if cell and not cell.transparent:
return False
return True
def ai_turn(self, player_pos):
"""Decide next move"""
mx, my = self.get_position()
px, py = player_pos
# Simple AI: move toward player if visible
if self.can_see(px, py):
# Calculate direction toward player
dx = 0
dy = 0
if px > mx:
dx = 1
elif px < mx:
dx = -1
if py > my:
dy = 1
elif py < my:
dy = -1
# Prefer cardinal movement
if dx != 0 and dy != 0:
# Pick horizontal or vertical based on greater distance
if abs(px - mx) > abs(py - my):
dy = 0
else:
dx = 0
return (mx + dx, my + dy)
else:
# Random wander
dx, dy = random.choice([(0,1), (0,-1), (1,0), (-1,0)])
return (mx + dx, my + dy)
def ai_turn_dijkstra(self):
"""Decide next move using precomputed Dijkstra map"""
mx, my = self.get_position()
# Get current distance to player
current_dist = grid.get_dijkstra_distance(mx, my)
if current_dist is None or current_dist > 20:
# Too far or unreachable - random wander
dx, dy = random.choice([(0,1), (0,-1), (1,0), (-1,0)])
return (mx + dx, my + dy)
# Check all adjacent cells for best move
best_moves = []
for dx, dy in [(0,1), (0,-1), (1,0), (-1,0)]:
nx, ny = mx + dx, my + dy
# Skip if out of bounds
if nx < 0 or nx >= grid_width or ny < 0 or ny >= grid_height:
continue
# Skip if not walkable
cell = grid.at(nx, ny)
if not cell or not cell.walkable:
continue
# Get distance from this cell
dist = grid.get_dijkstra_distance(nx, ny)
if dist is not None:
best_moves.append((dist, nx, ny))
if best_moves:
# Sort by distance
best_moves.sort()
# If multiple moves have the same best distance, pick randomly
best_dist = best_moves[0][0]
equal_moves = [(nx, ny) for dist, nx, ny in best_moves if dist == best_dist]
if len(equal_moves) > 1:
# Random choice among equally good moves
nx, ny = random.choice(equal_moves)
else:
_, nx, ny = best_moves[0]
return (nx, ny)
else:
# No valid moves
return (mx, my)
# Create a player entity
player = CombatEntity(
spawn_x, spawn_y,
texture=hero_texture,
sprite_index=0
)
# Add the player entity to the grid
grid.entities.append(player)
# Track all enemies
enemies = []
# Spawn enemies in other rooms
for i, room in enumerate(rooms[1:], 1): # Skip first room (player spawn)
if i <= 3: # Limit to 3 enemies for now
enemy_x, enemy_y = room.center()
enemy = CombatEntity(
enemy_x, enemy_y,
texture=hero_texture,
sprite_index=0 # Enemy sprite (borrow player's)
)
grid.entities.append(enemy)
enemies.append(enemy)
# Set the grid perspective to the player by default
# Note: The new perspective system uses entity references directly
grid.perspective = player
# Initial FOV computation
def update_fov():
"""Update field of view from current perspective"""
if grid.perspective == player:
grid.compute_fov(int(player.x), int(player.y), radius=8, algorithm=0)
player.update_visibility()
# Perform initial FOV calculation
update_fov()
# Center grid on current perspective
def center_on_perspective():
if grid.perspective == player:
grid.center = (player.x + 0.5) * 16, (player.y + 0.5) * 16
center_on_perspective()
# Movement state tracking (from Part 3)
#is_moving = False # make it an entity property
move_queue = []
current_destination = None
current_move = None
# Store animation references
player_anim_x = None
player_anim_y = None
grid_anim_x = None
grid_anim_y = None
def movement_complete(anim, target):
"""Called when movement animation completes"""
global move_queue, current_destination, current_move
global player_anim_x, player_anim_y, is_player_turn
player.is_moving = False
current_move = None
current_destination = None
player_anim_x = None
player_anim_y = None
# Update FOV after movement
update_fov()
center_on_perspective()
# Player turn complete, start enemy turns and queued player move simultaneously
is_player_turn = False
process_enemy_turns_and_player_queue()
motion_speed = 0.20
is_player_turn = True # Track whose turn it is
def get_blocking_entity_at(x, y):
"""Get blocking entity at position"""
for e in grid.entities:
if not e.walkable and (x, y) == e.get_position():
return e
return None
def can_move_to(x, y, mover=None):
"""Check if a position is valid for movement"""
if x < 0 or x >= grid_width or y < 0 or y >= grid_height:
return False
point = grid.at(x, y)
if not point or not point.walkable:
return False
# Check for blocking entities
blocker = get_blocking_entity_at(x, y)
if blocker and blocker != mover:
return False
return True
def process_enemy_turns_and_player_queue():
"""Process all enemy AI decisions and player's queued move simultaneously"""
global is_player_turn, move_queue
# Compute Dijkstra map once for all enemies (if using Dijkstra)
if USE_DIJKSTRA:
px, py = player.get_position()
grid.compute_dijkstra(px, py, diagonal_cost=1.41)
enemies_to_move = []
claimed_positions = set() # Track where enemies plan to move
# Collect all enemy moves
for i, enemy in enumerate(enemies):
if enemy.is_dead():
continue
# AI decides next move
if USE_DIJKSTRA:
target_x, target_y = enemy.ai_turn_dijkstra()
else:
target_x, target_y = enemy.ai_turn(player.get_position())
# Check if move is valid and not claimed by another enemy
if can_move_to(target_x, target_y, enemy) and (target_x, target_y) not in claimed_positions:
enemies_to_move.append((enemy, target_x, target_y))
claimed_positions.add((target_x, target_y))
# Start all enemy animations simultaneously
any_enemy_moved = False
if enemies_to_move:
for enemy, tx, ty in enemies_to_move:
enemy.start_move(tx, ty, duration=motion_speed)
any_enemy_moved = True
# Process player's queued move at the same time
if move_queue:
next_move = move_queue.pop(0)
process_player_queued_move(next_move)
else:
# No queued move, set up callback to return control when animations finish
if any_enemy_moved:
# Wait for animations to complete
mcrfpy.setTimer("turn_complete", check_turn_complete, int(motion_speed * 1000) + 50)
else:
# No animations, return control immediately
is_player_turn = True
def process_player_queued_move(key):
"""Process player's queued move during enemy turn"""
global current_move, current_destination
global player_anim_x, player_anim_y, grid_anim_x, grid_anim_y
px, py = int(player.x), int(player.y)
new_x, new_y = px, py
if key == "W" or key == "Up":
new_y -= 1
elif key == "S" or key == "Down":
new_y += 1
elif key == "A" or key == "Left":
new_x -= 1
elif key == "D" or key == "Right":
new_x += 1
if new_x != px or new_y != py:
# Check destination at animation end time (considering enemy destinations)
future_blocker = get_future_blocking_entity_at(new_x, new_y)
if future_blocker:
# Will bump at destination
# Schedule bump for when animations complete
mcrfpy.setTimer("delayed_bump", lambda t: handle_delayed_bump(future_blocker), int(motion_speed * 1000))
elif can_move_to(new_x, new_y, player):
# Valid move, start animation
player.is_moving = True
current_move = key
current_destination = (new_x, new_y)
player.dest_x = new_x
player.dest_y = new_y
# Player animation with callback
player_anim_x = mcrfpy.Animation("x", float(new_x), motion_speed, "easeInOutQuad", callback=player_queued_move_complete)
player_anim_x.start(player)
player_anim_y = mcrfpy.Animation("y", float(new_y), motion_speed, "easeInOutQuad")
player_anim_y.start(player)
# Move camera with player
grid_anim_x = mcrfpy.Animation("center_x", (new_x + 0.5) * 16, motion_speed, "linear")
grid_anim_y = mcrfpy.Animation("center_y", (new_y + 0.5) * 16, motion_speed, "linear")
grid_anim_x.start(grid)
grid_anim_y.start(grid)
else:
# Blocked by wall, wait for turn to complete
mcrfpy.setTimer("turn_complete", check_turn_complete, int(motion_speed * 1000) + 50)
def get_future_blocking_entity_at(x, y):
"""Get entity that will be blocking at position after current animations"""
for e in grid.entities:
if not e.walkable and (x, y) == (e.dest_x, e.dest_y):
return e
return None
def handle_delayed_bump(entity):
"""Handle bump after animations complete"""
global is_player_turn
entity.on_bump(player)
is_player_turn = True
def player_queued_move_complete(anim, target):
"""Called when player's queued movement completes"""
global is_player_turn
player.is_moving = False
update_fov()
center_on_perspective()
is_player_turn = True
def check_turn_complete(timer_name):
"""Check if all animations are complete"""
global is_player_turn
# Check if any entity is still moving
if player.is_moving:
mcrfpy.setTimer("turn_complete", check_turn_complete, 50)
return
for enemy in enemies:
if enemy.is_moving:
mcrfpy.setTimer("turn_complete", check_turn_complete, 50)
return
# All done
is_player_turn = True
def process_move(key):
"""Process a move based on the key"""
global current_move, current_destination, move_queue
global player_anim_x, player_anim_y, grid_anim_x, grid_anim_y, is_player_turn
# Only allow player movement on player's turn
if not is_player_turn:
return
# Only allow player movement when in player perspective
if grid.perspective != player:
return
if player.is_moving:
move_queue.clear()
move_queue.append(key)
return
px, py = int(player.x), int(player.y)
new_x, new_y = px, py
if key == "W" or key == "Up":
new_y -= 1
elif key == "S" or key == "Down":
new_y += 1
elif key == "A" or key == "Left":
new_x -= 1
elif key == "D" or key == "Right":
new_x += 1
if new_x != px or new_y != py:
# Check what's at destination
blocker = get_blocking_entity_at(new_x, new_y)
if blocker:
# Bump interaction (combat will go here later)
blocker.on_bump(player)
# Still counts as a turn
is_player_turn = False
process_enemy_turns_and_player_queue()
elif can_move_to(new_x, new_y, player):
player.is_moving = True
current_move = key
current_destination = (new_x, new_y)
player.dest_x = new_x
player.dest_y = new_y
# Start player move animation
player_anim_x = mcrfpy.Animation("x", float(new_x), motion_speed, "easeInOutQuad", callback=movement_complete)
player_anim_x.start(player)
player_anim_y = mcrfpy.Animation("y", float(new_y), motion_speed, "easeInOutQuad")
player_anim_y.start(player)
# Move camera with player
grid_anim_x = mcrfpy.Animation("center_x", (new_x + 0.5) * 16, motion_speed, "linear")
grid_anim_y = mcrfpy.Animation("center_y", (new_y + 0.5) * 16, motion_speed, "linear")
grid_anim_x.start(grid)
grid_anim_y.start(grid)
def handle_keys(key, state):
"""Handle keyboard input"""
if state == "start":
# Movement keys
if key in ["W", "Up", "S", "Down", "A", "Left", "D", "Right"]:
process_move(key)
# Register the keyboard handler
mcrfpy.keypressScene(handle_keys)
# Add UI elements
title = mcrfpy.Caption((320, 10),
text="McRogueFace Tutorial - Part 6: Turn-based Movement",
)
title.fill_color = mcrfpy.Color(255, 255, 255, 255)
mcrfpy.sceneUI("tutorial").append(title)
instructions = mcrfpy.Caption((150, 720),
text="Use WASD/Arrows to move. Enemies move after you!",
)
instructions.font_size = 18
instructions.fill_color = mcrfpy.Color(200, 200, 200, 255)
mcrfpy.sceneUI("tutorial").append(instructions)
# Debug info
debug_caption = mcrfpy.Caption((10, 40),
text=f"Grid: {grid_width}x{grid_height} | Rooms: {len(rooms)} | Enemies: {len(enemies)}",
)
debug_caption.font_size = 16
debug_caption.fill_color = mcrfpy.Color(255, 255, 0, 255)
mcrfpy.sceneUI("tutorial").append(debug_caption)
# Update function for turn display
def update_turn_display():
turn_text = "Player" if is_player_turn else "Enemy"
alive_enemies = sum(1 for e in enemies if not e.is_dead())
debug_caption.text = f"Grid: {grid_width}x{grid_height} | Turn: {turn_text} | Enemies: {alive_enemies}/{len(enemies)}"
# Configuration toggle
USE_DIJKSTRA = True # Set to False to use old line-of-sight AI
# Timer to update display
def update_display(runtime):
update_turn_display()
mcrfpy.setTimer("display_update", update_display, 100)
print("Tutorial Part 6 loaded!")
print("Turn-based movement system active!")
print(f"Using {'Dijkstra' if USE_DIJKSTRA else 'Line-of-sight'} AI pathfinding")
print("- Enemies move after the player")
print("- Enemies pursue when they can see you" if not USE_DIJKSTRA else "- Enemies use optimal pathfinding")
print("- Enemies wander when they can't" if not USE_DIJKSTRA else "- All enemies share one pathfinding map")
print("Use WASD or Arrow keys to move!")

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@ -1,582 +0,0 @@
"""
McRogueFace Tutorial - Part 6: Turn-based enemy movement
This tutorial builds on Part 5 by adding:
- Turn cycles where enemies move after the player
- Enemy AI that pursues or wanders
- Shared collision detection for all entities
"""
import mcrfpy
import random
# Create and activate a new scene
mcrfpy.createScene("tutorial")
mcrfpy.setScene("tutorial")
# Load the texture (4x3 tiles, 64x48 pixels total, 16x16 per tile)
texture = mcrfpy.Texture("assets/tutorial2.png", 16, 16)
# Load the hero sprite texture
hero_texture = mcrfpy.Texture("assets/custom_player.png", 16, 16)
# Create a grid of tiles
grid_width, grid_height = 40, 30
# Calculate the size in pixels
zoom = 2.0
grid_size = grid_width * zoom * 16, grid_height * zoom * 16
# Calculate the position to center the grid on the screen
grid_position = (1024 - grid_size[0]) / 2, (768 - grid_size[1]) / 2
# Create the grid with a TCODMap for pathfinding/FOV
grid = mcrfpy.Grid(
pos=grid_position,
grid_size=(grid_width, grid_height),
texture=texture,
size=grid_size,
)
grid.zoom = zoom
# Define tile types
FLOOR_TILES = [0, 1, 2, 4, 5, 6, 8, 9, 10]
WALL_TILES = [3, 7, 11]
# Room class for BSP
class Room:
def __init__(self, x, y, w, h):
self.x1 = x
self.y1 = y
self.x2 = x + w
self.y2 = y + h
self.w = w
self.h = h
def center(self):
center_x = (self.x1 + self.x2) // 2
center_y = (self.y1 + self.y2) // 2
return (center_x, center_y)
def intersects(self, other):
return (self.x1 <= other.x2 and self.x2 >= other.x1 and
self.y1 <= other.y2 and self.y2 >= other.y1)
# Dungeon generation functions (from Part 3)
def carve_room(room):
for x in range(room.x1, room.x2):
for y in range(room.y1, room.y2):
if 0 <= x < grid_width and 0 <= y < grid_height:
point = grid.at(x, y)
if point:
point.tilesprite = random.choice(FLOOR_TILES)
point.walkable = True
point.transparent = True
def carve_hallway(x1, y1, x2, y2):
#points = mcrfpy.libtcod.line(x1, y1, x2, y2)
points = []
if random.choice([True, False]):
# x1,y1 -> x2,y1 -> x2,y2
points.extend(mcrfpy.libtcod.line(x1, y1, x2, y1))
points.extend(mcrfpy.libtcod.line(x2, y1, x2, y2))
else:
# x1,y1 -> x1,y2 -> x2,y2
points.extend(mcrfpy.libtcod.line(x1, y1, x1, y2))
points.extend(mcrfpy.libtcod.line(x1, y2, x2, y2))
for x, y in points:
if 0 <= x < grid_width and 0 <= y < grid_height:
point = grid.at(x, y)
if point:
point.tilesprite = random.choice(FLOOR_TILES)
point.walkable = True
point.transparent = True
def generate_dungeon(max_rooms=10, room_min_size=4, room_max_size=10):
rooms = []
# Fill with walls
for y in range(grid_height):
for x in range(grid_width):
point = grid.at(x, y)
if point:
point.tilesprite = random.choice(WALL_TILES)
point.walkable = False
point.transparent = False
# Generate rooms
for _ in range(max_rooms):
w = random.randint(room_min_size, room_max_size)
h = random.randint(room_min_size, room_max_size)
x = random.randint(1, grid_width - w - 1)
y = random.randint(1, grid_height - h - 1)
new_room = Room(x, y, w, h)
failed = False
for other_room in rooms:
if new_room.intersects(other_room):
failed = True
break
if not failed:
carve_room(new_room)
if rooms:
prev_x, prev_y = rooms[-1].center()
new_x, new_y = new_room.center()
carve_hallway(prev_x, prev_y, new_x, new_y)
rooms.append(new_room)
return rooms
# Generate the dungeon
rooms = generate_dungeon(max_rooms=8, room_min_size=4, room_max_size=8)
# Add the grid to the scene
mcrfpy.sceneUI("tutorial").append(grid)
# Spawn player in the first room
if rooms:
spawn_x, spawn_y = rooms[0].center()
else:
spawn_x, spawn_y = 4, 4
class GameEntity(mcrfpy.Entity):
"""An entity whose default behavior is to prevent others from moving into its tile."""
def __init__(self, x, y, walkable=False, **kwargs):
super().__init__(x=x, y=y, **kwargs)
self.walkable = walkable
self.dest_x = x
self.dest_y = y
self.is_moving = False
def get_position(self):
"""Get logical position (destination if moving, otherwise current)"""
if self.is_moving:
return (self.dest_x, self.dest_y)
return (int(self.x), int(self.y))
def on_bump(self, other):
return self.walkable # allow other's motion to proceed if entity is walkable
def __repr__(self):
return f"<{self.__class__.__name__} x={self.x}, y={self.y}, sprite_index={self.sprite_index}>"
class CombatEntity(GameEntity):
def __init__(self, x, y, hp=10, damage=(1,3), **kwargs):
super().__init__(x=x, y=y, **kwargs)
self.hp = hp
self.damage = damage
def is_dead(self):
return self.hp <= 0
def start_move(self, new_x, new_y, duration=0.2, callback=None):
"""Start animating movement to new position"""
self.dest_x = new_x
self.dest_y = new_y
self.is_moving = True
# Define completion callback that resets is_moving
def movement_done(anim, entity):
self.is_moving = False
if callback:
callback(anim, entity)
# Create animations for smooth movement
anim_x = mcrfpy.Animation("x", float(new_x), duration, "easeInOutQuad", callback=movement_done)
anim_y = mcrfpy.Animation("y", float(new_y), duration, "easeInOutQuad")
anim_x.start(self)
anim_y.start(self)
def can_see(self, target_x, target_y):
"""Check if this entity can see the target position"""
mx, my = self.get_position()
# Simple distance check first
dist = abs(target_x - mx) + abs(target_y - my)
if dist > 6:
return False
# Line of sight check
line = list(mcrfpy.libtcod.line(mx, my, target_x, target_y))
for x, y in line[1:-1]: # Skip start and end
cell = grid.at(x, y)
if cell and not cell.transparent:
return False
return True
def ai_turn(self, player_pos):
"""Decide next move"""
mx, my = self.get_position()
px, py = player_pos
# Simple AI: move toward player if visible
if self.can_see(px, py):
# Calculate direction toward player
dx = 0
dy = 0
if px > mx:
dx = 1
elif px < mx:
dx = -1
if py > my:
dy = 1
elif py < my:
dy = -1
# Prefer cardinal movement
if dx != 0 and dy != 0:
# Pick horizontal or vertical based on greater distance
if abs(px - mx) > abs(py - my):
dy = 0
else:
dx = 0
return (mx + dx, my + dy)
else:
# Random wander
dx, dy = random.choice([(0,1), (0,-1), (1,0), (-1,0)])
return (mx + dx, my + dy)
# Create a player entity
player = CombatEntity(
spawn_x, spawn_y,
texture=hero_texture,
sprite_index=0
)
# Add the player entity to the grid
grid.entities.append(player)
# Track all enemies
enemies = []
# Spawn enemies in other rooms
for i, room in enumerate(rooms[1:], 1): # Skip first room (player spawn)
if i <= 3: # Limit to 3 enemies for now
enemy_x, enemy_y = room.center()
enemy = CombatEntity(
enemy_x, enemy_y,
texture=hero_texture,
sprite_index=0 # Enemy sprite (borrow player's)
)
grid.entities.append(enemy)
enemies.append(enemy)
# Set the grid perspective to the player by default
# Note: The new perspective system uses entity references directly
grid.perspective = player
# Initial FOV computation
def update_fov():
"""Update field of view from current perspective"""
if grid.perspective == player:
grid.compute_fov(int(player.x), int(player.y), radius=8, algorithm=0)
player.update_visibility()
# Perform initial FOV calculation
update_fov()
# Center grid on current perspective
def center_on_perspective():
if grid.perspective == player:
grid.center = (player.x + 0.5) * 16, (player.y + 0.5) * 16
center_on_perspective()
# Movement state tracking (from Part 3)
#is_moving = False # make it an entity property
move_queue = []
current_destination = None
current_move = None
# Store animation references
player_anim_x = None
player_anim_y = None
grid_anim_x = None
grid_anim_y = None
def movement_complete(anim, target):
"""Called when movement animation completes"""
global move_queue, current_destination, current_move
global player_anim_x, player_anim_y, is_player_turn
player.is_moving = False
current_move = None
current_destination = None
player_anim_x = None
player_anim_y = None
# Update FOV after movement
update_fov()
center_on_perspective()
# Player turn complete, start enemy turns and queued player move simultaneously
is_player_turn = False
process_enemy_turns_and_player_queue()
motion_speed = 0.20
is_player_turn = True # Track whose turn it is
def get_blocking_entity_at(x, y):
"""Get blocking entity at position"""
for e in grid.entities:
if not e.walkable and (x, y) == e.get_position():
return e
return None
def can_move_to(x, y, mover=None):
"""Check if a position is valid for movement"""
if x < 0 or x >= grid_width or y < 0 or y >= grid_height:
return False
point = grid.at(x, y)
if not point or not point.walkable:
return False
# Check for blocking entities
blocker = get_blocking_entity_at(x, y)
if blocker and blocker != mover:
return False
return True
def process_enemy_turns_and_player_queue():
"""Process all enemy AI decisions and player's queued move simultaneously"""
global is_player_turn, move_queue
enemies_to_move = []
# Collect all enemy moves
for i, enemy in enumerate(enemies):
if enemy.is_dead():
continue
# AI decides next move based on player's position
target_x, target_y = enemy.ai_turn(player.get_position())
# Check if move is valid
if can_move_to(target_x, target_y, enemy):
enemies_to_move.append((enemy, target_x, target_y))
# Start all enemy animations simultaneously
any_enemy_moved = False
if enemies_to_move:
for enemy, tx, ty in enemies_to_move:
enemy.start_move(tx, ty, duration=motion_speed)
any_enemy_moved = True
# Process player's queued move at the same time
if move_queue:
next_move = move_queue.pop(0)
process_player_queued_move(next_move)
else:
# No queued move, set up callback to return control when animations finish
if any_enemy_moved:
# Wait for animations to complete
mcrfpy.setTimer("turn_complete", check_turn_complete, int(motion_speed * 1000) + 50)
else:
# No animations, return control immediately
is_player_turn = True
def process_player_queued_move(key):
"""Process player's queued move during enemy turn"""
global current_move, current_destination
global player_anim_x, player_anim_y, grid_anim_x, grid_anim_y
px, py = int(player.x), int(player.y)
new_x, new_y = px, py
if key == "W" or key == "Up":
new_y -= 1
elif key == "S" or key == "Down":
new_y += 1
elif key == "A" or key == "Left":
new_x -= 1
elif key == "D" or key == "Right":
new_x += 1
if new_x != px or new_y != py:
# Check destination at animation end time (considering enemy destinations)
future_blocker = get_future_blocking_entity_at(new_x, new_y)
if future_blocker:
# Will bump at destination
# Schedule bump for when animations complete
mcrfpy.setTimer("delayed_bump", lambda t: handle_delayed_bump(future_blocker), int(motion_speed * 1000))
elif can_move_to(new_x, new_y, player):
# Valid move, start animation
player.is_moving = True
current_move = key
current_destination = (new_x, new_y)
player.dest_x = new_x
player.dest_y = new_y
# Player animation with callback
player_anim_x = mcrfpy.Animation("x", float(new_x), motion_speed, "easeInOutQuad", callback=player_queued_move_complete)
player_anim_x.start(player)
player_anim_y = mcrfpy.Animation("y", float(new_y), motion_speed, "easeInOutQuad")
player_anim_y.start(player)
# Move camera with player
grid_anim_x = mcrfpy.Animation("center_x", (new_x + 0.5) * 16, motion_speed, "linear")
grid_anim_y = mcrfpy.Animation("center_y", (new_y + 0.5) * 16, motion_speed, "linear")
grid_anim_x.start(grid)
grid_anim_y.start(grid)
else:
# Blocked by wall, wait for turn to complete
mcrfpy.setTimer("turn_complete", check_turn_complete, int(motion_speed * 1000) + 50)
def get_future_blocking_entity_at(x, y):
"""Get entity that will be blocking at position after current animations"""
for e in grid.entities:
if not e.walkable and (x, y) == (e.dest_x, e.dest_y):
return e
return None
def handle_delayed_bump(entity):
"""Handle bump after animations complete"""
global is_player_turn
entity.on_bump(player)
is_player_turn = True
def player_queued_move_complete(anim, target):
"""Called when player's queued movement completes"""
global is_player_turn
player.is_moving = False
update_fov()
center_on_perspective()
is_player_turn = True
def check_turn_complete(timer_name):
"""Check if all animations are complete"""
global is_player_turn
# Check if any entity is still moving
if player.is_moving:
mcrfpy.setTimer("turn_complete", check_turn_complete, 50)
return
for enemy in enemies:
if enemy.is_moving:
mcrfpy.setTimer("turn_complete", check_turn_complete, 50)
return
# All done
is_player_turn = True
def process_move(key):
"""Process a move based on the key"""
global current_move, current_destination, move_queue
global player_anim_x, player_anim_y, grid_anim_x, grid_anim_y, is_player_turn
# Only allow player movement on player's turn
if not is_player_turn:
return
# Only allow player movement when in player perspective
if grid.perspective != player:
return
if player.is_moving:
move_queue.clear()
move_queue.append(key)
return
px, py = int(player.x), int(player.y)
new_x, new_y = px, py
if key == "W" or key == "Up":
new_y -= 1
elif key == "S" or key == "Down":
new_y += 1
elif key == "A" or key == "Left":
new_x -= 1
elif key == "D" or key == "Right":
new_x += 1
if new_x != px or new_y != py:
# Check what's at destination
blocker = get_blocking_entity_at(new_x, new_y)
if blocker:
# Bump interaction (combat will go here later)
blocker.on_bump(player)
# Still counts as a turn
is_player_turn = False
process_enemy_turns_and_player_queue()
elif can_move_to(new_x, new_y, player):
player.is_moving = True
current_move = key
current_destination = (new_x, new_y)
player.dest_x = new_x
player.dest_y = new_y
# Start player move animation
player_anim_x = mcrfpy.Animation("x", float(new_x), motion_speed, "easeInOutQuad", callback=movement_complete)
player_anim_x.start(player)
player_anim_y = mcrfpy.Animation("y", float(new_y), motion_speed, "easeInOutQuad")
player_anim_y.start(player)
# Move camera with player
grid_anim_x = mcrfpy.Animation("center_x", (new_x + 0.5) * 16, motion_speed, "linear")
grid_anim_y = mcrfpy.Animation("center_y", (new_y + 0.5) * 16, motion_speed, "linear")
grid_anim_x.start(grid)
grid_anim_y.start(grid)
def handle_keys(key, state):
"""Handle keyboard input"""
if state == "start":
# Movement keys
if key in ["W", "Up", "S", "Down", "A", "Left", "D", "Right"]:
process_move(key)
# Register the keyboard handler
mcrfpy.keypressScene(handle_keys)
# Add UI elements
title = mcrfpy.Caption((320, 10),
text="McRogueFace Tutorial - Part 6: Turn-based Movement",
)
title.fill_color = mcrfpy.Color(255, 255, 255, 255)
mcrfpy.sceneUI("tutorial").append(title)
instructions = mcrfpy.Caption((150, 720),
text="Use WASD/Arrows to move. Enemies move after you!",
)
instructions.font_size = 18
instructions.fill_color = mcrfpy.Color(200, 200, 200, 255)
mcrfpy.sceneUI("tutorial").append(instructions)
# Debug info
debug_caption = mcrfpy.Caption((10, 40),
text=f"Grid: {grid_width}x{grid_height} | Rooms: {len(rooms)} | Enemies: {len(enemies)}",
)
debug_caption.font_size = 16
debug_caption.fill_color = mcrfpy.Color(255, 255, 0, 255)
mcrfpy.sceneUI("tutorial").append(debug_caption)
# Update function for turn display
def update_turn_display():
turn_text = "Player" if is_player_turn else "Enemy"
alive_enemies = sum(1 for e in enemies if not e.is_dead())
debug_caption.text = f"Grid: {grid_width}x{grid_height} | Turn: {turn_text} | Enemies: {alive_enemies}/{len(enemies)}"
# Timer to update display
def update_display(runtime):
update_turn_display()
mcrfpy.setTimer("display_update", update_display, 100)
print("Tutorial Part 6 loaded!")
print("Turn-based movement system active!")
print("- Enemies move after the player")
print("- Enemies pursue when they can see you")
print("- Enemies wander when they can't")
print("Use WASD or Arrow keys to move!")

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