McRogueFace/tests/benchmark_moving_entities.py

153 lines
3.8 KiB
Python

"""
Benchmark: Moving Entities Performance Test
This benchmark measures McRogueFace's performance with 50 randomly moving
entities on a 100x100 grid.
Expected results:
- Should maintain 60 FPS
- Entity render time should be <3ms
- Grid render time will be higher due to constant updates (no dirty flag benefit)
Usage:
./build/mcrogueface --exec tests/benchmark_moving_entities.py
Press F3 to toggle performance overlay
Press ESC to exit
"""
import mcrfpy
import sys
import random
# Create the benchmark scene
mcrfpy.createScene("benchmark")
mcrfpy.setScene("benchmark")
# Get scene UI
ui = mcrfpy.sceneUI("benchmark")
# Create a 100x100 grid
grid = mcrfpy.Grid(
grid_size=(100, 100),
pos=(0, 0),
size=(1024, 768)
)
# Simple floor pattern
for x in range(100):
for y in range(100):
cell = grid.at((x, y))
cell.tilesprite = 0
cell.color = (40, 40, 40, 255)
# Create 50 entities with random positions and velocities
entities = []
ENTITY_COUNT = 50
for i in range(ENTITY_COUNT):
entity = mcrfpy.Entity(
grid_pos=(random.randint(0, 99), random.randint(0, 99)),
sprite_index=random.randint(10, 20) # Use varied sprites
)
# Give each entity a random velocity
entity.velocity_x = random.uniform(-0.5, 0.5)
entity.velocity_y = random.uniform(-0.5, 0.5)
grid.entities.append(entity)
entities.append(entity)
ui.append(grid)
# Instructions caption
instructions = mcrfpy.Caption(
text=f"Moving Entities Benchmark ({ENTITY_COUNT} entities)\n"
"Press F3 for performance overlay\n"
"Press ESC to exit\n"
"Goal: 60 FPS with entities moving",
pos=(10, 10),
fill_color=(255, 255, 0, 255)
)
ui.append(instructions)
# Benchmark info
print("=" * 60)
print("MOVING ENTITIES BENCHMARK")
print("=" * 60)
print(f"Entity count: {ENTITY_COUNT}")
print("Grid size: 100x100 cells")
print("Expected FPS: 60")
print("")
print("Entities move randomly and bounce off walls.")
print("This tests entity rendering performance and position updates.")
print("")
print("Press F3 in-game to see real-time performance metrics.")
print("=" * 60)
# Exit handler
def handle_key(key, state):
if key == "Escape" and state:
print("\nBenchmark ended by user")
sys.exit(0)
mcrfpy.keypressScene(handle_key)
# Update entity positions
def update_entities(ms):
dt = ms / 1000.0 # Convert to seconds
for entity in entities:
# Update position
new_x = entity.x + entity.velocity_x
new_y = entity.y + entity.velocity_y
# Bounce off walls
if new_x < 0 or new_x >= 100:
entity.velocity_x = -entity.velocity_x
new_x = max(0, min(99, new_x))
if new_y < 0 or new_y >= 100:
entity.velocity_y = -entity.velocity_y
new_y = max(0, min(99, new_y))
# Update entity position
entity.x = new_x
entity.y = new_y
# Run movement update every frame (16ms)
mcrfpy.setTimer("movement", update_entities, 16)
# Benchmark statistics
frame_count = 0
start_time = None
def benchmark_timer(ms):
global frame_count, start_time
if start_time is None:
import time
start_time = time.time()
frame_count += 1
# After 10 seconds, print summary
import time
elapsed = time.time() - start_time
if elapsed >= 10.0:
print("\n" + "=" * 60)
print("BENCHMARK COMPLETE")
print("=" * 60)
print(f"Frames rendered: {frame_count}")
print(f"Time elapsed: {elapsed:.2f}s")
print(f"Average FPS: {frame_count / elapsed:.1f}")
print(f"Entities: {ENTITY_COUNT}")
print("")
print("Check profiler overlay (F3) for detailed timing breakdown.")
print("Entity render time and total frame time are key metrics.")
print("=" * 60)
# Don't exit - let user review
mcrfpy.setTimer("benchmark", benchmark_timer, 100)