McRogueFace/deps_linux/libtcod/console.h

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/* BSD 3-Clause License
*
* Copyright © 2008-2022, Jice and the libtcod contributors.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* 3. Neither the name of the copyright holder nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef TCOD_CONSOLE_H_
#define TCOD_CONSOLE_H_
#include <stdbool.h>
#ifdef __cplusplus
#include <algorithm>
#include <array>
#include <memory>
#include <optional>
#include <stdexcept>
#include <utility>
#include "error.hpp"
#endif // __cplusplus
#include "color.h"
#include "config.h"
#include "error.h"
#include "tileset.h"
/**
* \enum TCOD_bkgnd_flag_t
*
* Background color blend modes.
*/
typedef enum {
TCOD_BKGND_NONE,
TCOD_BKGND_SET,
TCOD_BKGND_MULTIPLY,
TCOD_BKGND_LIGHTEN,
TCOD_BKGND_DARKEN,
TCOD_BKGND_SCREEN,
TCOD_BKGND_COLOR_DODGE,
TCOD_BKGND_COLOR_BURN,
TCOD_BKGND_ADD,
TCOD_BKGND_ADDA,
TCOD_BKGND_BURN,
TCOD_BKGND_OVERLAY,
TCOD_BKGND_ALPH,
TCOD_BKGND_DEFAULT
} TCOD_bkgnd_flag_t;
/**
* \enum TCOD_alignment_t
*
* Print justification options.
*/
typedef enum { TCOD_LEFT, TCOD_RIGHT, TCOD_CENTER } TCOD_alignment_t;
/***************************************************************************
@brief The raw data for a single TCOD_Console tile.
\rst
.. versionadded:: 1.19
\endrst
*/
typedef struct TCOD_ConsoleTile {
#ifdef __cplusplus
bool operator==(const TCOD_ConsoleTile& rhs) const noexcept { return ch == rhs.ch && fg == rhs.fg && bg == rhs.bg; }
bool operator!=(const TCOD_ConsoleTile& rhs) const noexcept { return !(*this == rhs); }
#endif // __cplusplus
/***************************************************************************
@brief The Unicode codepoint for this tile.
*/
int ch;
/***************************************************************************
@brief The tile glyph color, rendered on top of the background.
*/
TCOD_ColorRGBA fg;
/***************************************************************************
@brief The tile background color, rendered behind the glyph.
*/
TCOD_ColorRGBA bg;
} TCOD_ConsoleTile;
/***************************************************************************
@brief A libtcod console containing a grid of tiles with `{ch, fg, bg}` information.
@details In C++ this struct has several convience methods to make working with consoles easier.
Note that all tile references are to TCOD_ConsoleTile structs and will include an alpha channel.
For C++ code examples see `tcod::Console`.
\rst
.. versionadded:: 1.19
\endrst
*/
struct TCOD_Console {
#ifdef __cplusplus
/***************************************************************************
@brief Return a pointer to the beginning of this consoles tile data.
*/
[[nodiscard]] auto begin() noexcept -> TCOD_ConsoleTile* { return tiles; }
/***************************************************************************
@brief Return a const pointer to the beginning of this consoles tile data.
*/
[[nodiscard]] auto begin() const noexcept -> const TCOD_ConsoleTile* { return tiles; }
/***************************************************************************
@brief Return a pointer to the end of this consoles tile data.
*/
[[nodiscard]] auto end() noexcept -> TCOD_ConsoleTile* { return tiles + elements; }
/***************************************************************************
@brief Return a const pointer to the end of this consoles tile data.
*/
[[nodiscard]] auto end() const noexcept -> const TCOD_ConsoleTile* { return tiles + elements; }
/***************************************************************************
@brief Clear a console by setting all tiles to the provided TCOD_ConsoleTile object.
@param tile A TCOD_ConsoleTile reference which will be used to clear the console.
*/
void clear(const TCOD_ConsoleTile& tile = {0x20, {255, 255, 255, 255}, {0, 0, 0, 255}}) noexcept {
for (auto& it : *this) it = tile;
}
/***************************************************************************
@brief Return a reference to the tile at `xy`.
*/
[[nodiscard]] auto operator[](const std::array<int, 2>& xy) noexcept -> TCOD_ConsoleTile& {
return tiles[get_index(xy)];
}
/***************************************************************************
@brief Return a constant reference to the tile at `xy`.
*/
[[nodiscard]] auto operator[](const std::array<int, 2>& xy) const noexcept -> const TCOD_ConsoleTile& {
return tiles[get_index(xy)];
}
/***************************************************************************
@brief Return a reference to the tile at `xy`.
@throws std::out_of_range if the index is out-of-bounds
*/
[[nodiscard]] auto at(const std::array<int, 2>& xy) -> TCOD_ConsoleTile& { return tiles[bounds_check(xy)]; }
/***************************************************************************
@brief Return a constant reference to the tile at `xy`.
@throws std::out_of_range if the index is out-of-bounds
*/
[[nodiscard]] auto at(const std::array<int, 2>& xy) const -> const TCOD_ConsoleTile& {
return tiles[bounds_check(xy)];
}
/***************************************************************************
@brief Return a reference to the tile at `x`,`y`.
@throws std::out_of_range if the index is out-of-bounds
*/
[[nodiscard]] auto at(int x, int y) -> TCOD_ConsoleTile& { return at({x, y}); }
/***************************************************************************
@brief Return a constant reference to the tile at `x`,`y`.
@throws std::out_of_range if the index is out-of-bounds
*/
[[nodiscard]] auto at(int x, int y) const -> const TCOD_ConsoleTile& { return at({x, y}); }
/***************************************************************************
@brief Convert `xy` into a 1-dimensional index. Out-of-bounds indexes are undefined.
@details This index is normally used to index the tiles attribute.
*/
[[nodiscard]] int get_index(const std::array<int, 2>& xy) const noexcept { return w * xy[1] + xy[0]; }
/***************************************************************************
@brief Return true if `xy` are within the bounds of this console.
*/
[[nodiscard]] bool in_bounds(const std::array<int, 2>& xy) const noexcept {
return 0 <= xy[0] && xy[0] < w && 0 <= xy[1] && xy[1] < h;
}
private:
/***************************************************************************
@brief Checks if `xy` is in bounds then return an in-bounds index.
@throws std::out_of_range if `xy` is out-of-bounds
*/
int bounds_check(const std::array<int, 2>& xy) const {
if (!in_bounds(xy)) {
throw std::out_of_range(
std::string("Out of bounds lookup {") + std::to_string(xy[0]) + ", " + std::to_string(xy[1]) +
"} on console of shape {" + std::to_string(w) + ", " + std::to_string(h) + "}.");
}
return get_index(xy);
}
public:
#endif // __cplusplus
/** Console width and height in tiles. */
int w, h;
/** A contiguous array of console tiles. */
TCOD_ConsoleTile* __restrict tiles;
/** Default background operator for print & print_rect functions. */
TCOD_bkgnd_flag_t bkgnd_flag;
/** Default alignment for print & print_rect functions. */
TCOD_alignment_t alignment;
/** Foreground (text) and background colors. */
TCOD_color_t fore, back;
/** True if a key color is being used. */
bool has_key_color;
/** The current key color for this console. */
TCOD_color_t key_color;
/**
@brief The total length of the tiles array. Same as `w * h`.
\rst
.. versionadded:: 1.16
\endrst
*/
int elements;
/**
@brief A userdata attribute which can be repurposed.
\rst
.. versionadded:: 1.16
\endrst
*/
void* userdata;
/** Internal use. */
void (*on_delete)(struct TCOD_Console* self);
};
typedef struct TCOD_Console TCOD_Console;
typedef struct TCOD_Console* TCOD_console_t;
#ifdef __cplusplus
extern "C" {
#endif // __cplusplus
/**
* Return a new console with a specific number of columns and rows.
*
* \param w Number of columns.
* \param h Number of columns.
* \return A pointer to the new console, or NULL on error.
*/
TCOD_PUBLIC TCOD_NODISCARD TCOD_Console* TCOD_console_new(int w, int h);
/**
* Return the width of a console.
*/
TCOD_PUBLIC TCOD_NODISCARD int TCOD_console_get_width(const TCOD_Console* con);
/**
* Return the height of a console.
*/
TCOD_PUBLIC TCOD_NODISCARD int TCOD_console_get_height(const TCOD_Console* con);
TCOD_PUBLIC void TCOD_console_set_key_color(TCOD_Console* con, TCOD_color_t col);
/**
* Blit from one console to another.
*
* \param src Pointer to the source console.
* \param xSrc The left region of the source console to blit from.
* \param ySrc The top region of the source console to blit from.
* \param wSrc The width of the region to blit from.
* If 0 then it will fill to the maximum width.
* \param hSrc The height of the region to blit from.
* If 0 then it will fill to the maximum height.
* \param dst Pointer to the destination console.
* \param xDst The left corner to blit onto the destination console.
* \param yDst The top corner to blit onto the destination console.
* \param foreground_alpha Foreground blending alpha.
* \param background_alpha Background blending alpha.
*
* If the source console has a key color, this function will use it.
* \rst
* .. versionchanged:: 1.16
* Blits can now handle per-cell alpha transparency.
* \endrst
*/
TCOD_PUBLIC void TCOD_console_blit(
const TCOD_Console* __restrict src,
int xSrc,
int ySrc,
int wSrc,
int hSrc,
TCOD_Console* __restrict dst,
int xDst,
int yDst,
float foreground_alpha,
float background_alpha);
TCOD_PUBLIC void TCOD_console_blit_key_color(
const TCOD_Console* __restrict src,
int xSrc,
int ySrc,
int wSrc,
int hSrc,
TCOD_Console* __restrict dst,
int xDst,
int yDst,
float foreground_alpha,
float background_alpha,
const TCOD_color_t* key_color);
/**
* Delete a console.
*
* \param console A console pointer.
*
* If the console being deleted is the root console, then the display will be
* uninitialized.
*/
TCOD_PUBLIC void TCOD_console_delete(TCOD_Console* console);
TCOD_DEPRECATED("Console defaults have been deprecated.")
TCOD_PUBLIC void TCOD_console_set_default_background(TCOD_Console* con, TCOD_color_t col);
TCOD_DEPRECATED("Console defaults have been deprecated.")
TCOD_PUBLIC void TCOD_console_set_default_foreground(TCOD_Console* con, TCOD_color_t col);
/**
* Clear a console to its default colors and the space character code.
*/
TCOD_PUBLIC void TCOD_console_clear(TCOD_Console* con);
/**
* Blend a background color onto a console tile.
*
* \param con A console pointer.
* \param x The X coordinate, the left-most position being 0.
* \param y The Y coordinate, the top-most position being 0.
* \param col The background color to blend.
* \param flag The blend mode to use.
*/
TCOD_PUBLIC void TCOD_console_set_char_background(
TCOD_Console* con, int x, int y, TCOD_color_t col, TCOD_bkgnd_flag_t flag);
/**
* Change the foreground color of a console tile.
*
* \param con A console pointer.
* \param x The X coordinate, the left-most position being 0.
* \param y The Y coordinate, the top-most position being 0.
* \param col The foreground color to set.
*/
TCOD_PUBLIC void TCOD_console_set_char_foreground(TCOD_Console* con, int x, int y, TCOD_color_t col);
/**
* Change a character on a console tile, without changing its colors.
*
* \param con A console pointer.
* \param x The X coordinate, the left-most position being 0.
* \param y The Y coordinate, the top-most position being 0.
* \param c The character code to set.
*/
TCOD_PUBLIC void TCOD_console_set_char(TCOD_Console* con, int x, int y, int c);
/**
* Draw a character on a console using the default colors.
*
* \param con A console pointer.
* \param x The X coordinate, the left-most position being 0.
* \param y The Y coordinate, the top-most position being 0.
* \param c The character code to place.
* \param flag A TCOD_bkgnd_flag_t flag.
*/
TCOD_PUBLIC void TCOD_console_put_char(TCOD_Console* con, int x, int y, int c, TCOD_bkgnd_flag_t flag);
/**
* Draw a character on the console with the given colors.
*
* \param con A console pointer.
* \param x The X coordinate, the left-most position being 0.
* \param y The Y coordinate, the top-most position being 0.
* \param c The character code to place.
* \param fore The foreground color.
* \param back The background color. This color will not be blended.
*/
TCOD_PUBLIC void TCOD_console_put_char_ex(TCOD_Console* con, int x, int y, int c, TCOD_color_t fore, TCOD_color_t back);
/**
* Set a consoles default background flag.
*
* \param con A console pointer.
* \param flag One of `TCOD_bkgnd_flag_t`.
*/
TCOD_DEPRECATED("Console defaults have been deprecated.")
TCOD_PUBLIC void TCOD_console_set_background_flag(TCOD_Console* con, TCOD_bkgnd_flag_t flag);
/**
* Return a consoles default background flag.
*/
TCOD_DEPRECATED("Console defaults have been deprecated.")
TCOD_PUBLIC TCOD_NODISCARD TCOD_bkgnd_flag_t TCOD_console_get_background_flag(TCOD_Console* con);
/**
* Set a consoles default alignment.
*
* \param con A console pointer.
* \param alignment One of TCOD_alignment_t
*/
TCOD_DEPRECATED("Console defaults have been deprecated.")
TCOD_PUBLIC void TCOD_console_set_alignment(TCOD_Console* con, TCOD_alignment_t alignment);
/**
* Return a consoles default alignment.
*/
TCOD_DEPRECATED("Console defaults have been deprecated.")
TCOD_PUBLIC TCOD_NODISCARD TCOD_alignment_t TCOD_console_get_alignment(TCOD_Console* con);
TCOD_DEPRECATED("Console defaults have been deprecated.")
TCOD_PUBLIC TCOD_NODISCARD TCOD_color_t TCOD_console_get_default_background(TCOD_Console* con);
TCOD_DEPRECATED("Console defaults have been deprecated.")
TCOD_PUBLIC TCOD_NODISCARD TCOD_color_t TCOD_console_get_default_foreground(TCOD_Console* con);
/**
* Return the background color of a console at x,y
*
* \param con A console pointer.
* \param x The X coordinate, the left-most position being 0.
* \param y The Y coordinate, the top-most position being 0.
* \return A TCOD_color_t struct with a copy of the background color.
*/
TCOD_PUBLIC TCOD_NODISCARD TCOD_color_t TCOD_console_get_char_background(const TCOD_Console* con, int x, int y);
/**
* Return the foreground color of a console at x,y
*
* \param con A console pointer.
* \param x The X coordinate, the left-most position being 0.
* \param y The Y coordinate, the top-most position being 0.
* \return A TCOD_color_t struct with a copy of the foreground color.
*/
TCOD_PUBLIC TCOD_NODISCARD TCOD_color_t TCOD_console_get_char_foreground(const TCOD_Console* con, int x, int y);
/**
* Return a character code of a console at x,y
*
* \param con A console pointer.
* \param x The X coordinate, the left-most position being 0.
* \param y The Y coordinate, the top-most position being 0.
* \return The character code.
*/
TCOD_PUBLIC TCOD_NODISCARD int TCOD_console_get_char(const TCOD_Console* con, int x, int y);
/**
Fade the color of the display.
\param val Where at 255 colors are normal and at 0 colors are completely
faded.
\param fade_color Color to fade towards.
\rst
.. deprecated:: 1.19
This function will not work with libtcod contexts.
\endrst
*/
TCOD_DEPRECATED("This function does not support contexts.")
TCOD_PUBLIC
void TCOD_console_set_fade(uint8_t val, TCOD_color_t fade_color);
/**
* Return the fade value.
*
* \return At 255 colors are normal and at 0 colors are completely faded.
*/
TCOD_PUBLIC TCOD_NODISCARD uint8_t TCOD_console_get_fade(void);
/**
* Return the fade color.
*
* \return The current fading color.
*/
TCOD_PUBLIC TCOD_NODISCARD TCOD_color_t TCOD_console_get_fading_color(void);
void TCOD_console_resize_(TCOD_Console* console, int width, int height);
#ifdef __cplusplus
} // extern "C"
#endif // __cplusplus
#endif // TCOD_CONSOLE_H_