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131 lines
3.2 KiB
131 lines
3.2 KiB
/** |
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* @file lighting.h |
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* |
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* Interface of light and vision. |
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*/ |
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#pragma once |
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#include <array> |
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#include <vector> |
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#include <function_ref.hpp> |
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#include "automap.h" |
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#include "engine.h" |
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#include "engine/point.hpp" |
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#include "utils/attributes.h" |
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#include "utils/stdcompat/invoke_result_t.hpp" |
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#include "utils/stdcompat/optional.hpp" |
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namespace devilution { |
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#define MAXLIGHTS 32 |
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#define MAXVISION 32 |
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/** 16 light levels + infravision + stone curse + red for pause/death screen */ |
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#define LIGHTSIZE (19 * 256) |
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#define NO_LIGHT -1 |
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struct LightPosition { |
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Point tile; |
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/** Pixel offset from tile. */ |
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Displacement offset; |
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/** Prevous position. */ |
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Point old; |
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}; |
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struct Light { |
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LightPosition position; |
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int _lradius; |
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int _lid; |
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bool _ldel; |
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bool _lunflag; |
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int oldRadius; |
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bool _lflags; |
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}; |
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extern Light VisionList[MAXVISION]; |
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extern int VisionCount; |
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extern int VisionId; |
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extern Light Lights[MAXLIGHTS]; |
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extern uint8_t ActiveLights[MAXLIGHTS]; |
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extern int ActiveLightCount; |
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constexpr char LightsMax = 15; |
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extern std::array<uint8_t, LIGHTSIZE> LightTables; |
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extern bool DisableLighting; |
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extern bool UpdateLighting; |
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void DoLighting(Point position, int nRadius, int Lnum); |
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void DoUnVision(Point position, int nRadius); |
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void DoVision(Point position, int radius, MapExplorationType doAutomap, bool visible); |
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void MakeLightTable(); |
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#ifdef _DEBUG |
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void ToggleLighting(); |
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#endif |
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void InitLighting(); |
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int AddLight(Point position, int r); |
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void AddUnLight(int i); |
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void ChangeLightRadius(int i, int r); |
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void ChangeLightXY(int i, Point position); |
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void ChangeLightOffset(int i, Displacement offset); |
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void ChangeLight(int i, Point position, int r); |
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void ProcessLightList(); |
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void SavePreLighting(); |
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void InitVision(); |
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int AddVision(Point position, int r, bool mine); |
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void ChangeVisionRadius(int id, int r); |
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void ChangeVisionXY(int id, Point position); |
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void ProcessVisionList(); |
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void lighting_color_cycling(); |
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constexpr int MaxCrawlRadius = 18; |
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/** |
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* CrawlTable specifies X- and Y-coordinate deltas from a missile target coordinate. |
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* |
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* n=4 |
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* |
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* y |
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* ^ |
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* | 1 |
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* | 3#4 |
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* | 2 |
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* +-----> x |
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* |
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* n=16 |
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* |
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* y |
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* ^ |
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* | 314 |
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* | B7 8C |
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* | F # G |
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* | D9 AE |
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* | 526 |
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* +-------> x |
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*/ |
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bool DoCrawl(unsigned radius, tl::function_ref<bool(Displacement)> function); |
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bool DoCrawl(unsigned minRadius, unsigned maxRadius, tl::function_ref<bool(Displacement)> function); |
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template <typename F> |
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auto Crawl(unsigned radius, F function) -> invoke_result_t<decltype(function), Displacement> |
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{ |
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invoke_result_t<decltype(function), Displacement> result; |
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DoCrawl(radius, [&result, &function](Displacement displacement) -> bool { |
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result = function(displacement); |
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return !result; |
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}); |
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return result; |
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} |
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template <typename F> |
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auto Crawl(unsigned minRadius, unsigned maxRadius, F function) -> invoke_result_t<decltype(function), Displacement> |
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{ |
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invoke_result_t<decltype(function), Displacement> result; |
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DoCrawl(minRadius, maxRadius, [&result, &function](Displacement displacement) -> bool { |
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result = function(displacement); |
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return !result; |
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}); |
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return result; |
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} |
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} // namespace devilution
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