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105 lines
2.5 KiB
105 lines
2.5 KiB
/** |
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* @file engine.h |
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* |
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* of basic engine helper functions: |
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* - Sprite blitting |
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* - Drawing |
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* - Angle calculation |
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* - Memory allocation |
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* - File loading |
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* - Video playback |
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*/ |
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#pragma once |
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#include <algorithm> |
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#include <array> |
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#include <cstdint> |
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#include <cstdlib> |
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#include <memory> |
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#include <tuple> |
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#include <utility> |
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// We include `cinttypes` here so that it is included before `inttypes.h` |
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// to work around a bug in older GCC versions on some platforms, |
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// where including `inttypes.h` before `cinttypes` leads to missing |
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// defines for `PRIuMAX` et al. SDL transitively includes `inttypes.h`. |
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// See https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97044 |
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#include <cinttypes> |
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#include <SDL.h> |
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#ifdef USE_SDL1 |
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#include "utils/sdl2_to_1_2_backports.h" |
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#endif |
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#include "appfat.h" |
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#include "engine/point.hpp" |
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#include "engine/size.hpp" |
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#include "engine/surface.hpp" |
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#include "utils/stdcompat/cstddef.hpp" |
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#define TILE_WIDTH 64 |
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#define TILE_HEIGHT 32 |
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namespace devilution { |
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#if __cplusplus >= 201703L |
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template <typename V, typename X, typename... Xs> |
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constexpr bool IsAnyOf(const V &v, X x, Xs... xs) |
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{ |
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return v == x || ((v == xs) || ...); |
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} |
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template <typename V, typename X, typename... Xs> |
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constexpr bool IsNoneOf(const V &v, X x, Xs... xs) |
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{ |
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return v != x && ((v != xs) && ...); |
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} |
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#else |
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template <typename V, typename X> |
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constexpr bool IsAnyOf(const V &v, X x) |
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{ |
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return v == x; |
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} |
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template <typename V, typename X, typename... Xs> |
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constexpr bool IsAnyOf(const V &v, X x, Xs... xs) |
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{ |
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return IsAnyOf(v, x) || IsAnyOf(v, xs...); |
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} |
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template <typename V, typename X> |
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constexpr bool IsNoneOf(const V &v, X x) |
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{ |
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return v != x; |
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} |
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template <typename V, typename X, typename... Xs> |
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constexpr bool IsNoneOf(const V &v, X x, Xs... xs) |
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{ |
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return IsNoneOf(v, x) && IsNoneOf(v, xs...); |
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} |
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#endif |
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/** |
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* @brief Calculate the best fit direction between two points |
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* @param start Tile coordinate |
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* @param destination Tile coordinate |
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* @return A value from the direction enum |
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*/ |
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Direction GetDirection(Point start, Point destination); |
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/** |
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* @brief Calculate Width2 from the orginal Width |
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* Width2 is needed for savegame compatiblity and to render animations centered |
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* @return Returns Width2 |
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*/ |
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int CalculateWidth2(int width); |
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inline int GetAnimationFrame(int frames, int fps = 60) |
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{ |
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int frame = (SDL_GetTicks() / fps) % frames; |
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return frame > frames ? 0 : frame; |
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} |
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} // namespace devilution
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