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92 lines
2.6 KiB
92 lines
2.6 KiB
/** |
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* @file automap_render.cpp |
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* |
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* Line drawing routines for the automap. |
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*/ |
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#include "engine/render/automap_render.hpp" |
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namespace devilution { |
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namespace { |
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enum class DirectionX { |
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EAST = 1, |
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WEST = -1, |
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}; |
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enum class DirectionY { |
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SOUTH = 1, |
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NORTH = -1, |
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}; |
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template <DirectionX DirX, DirectionY DirY> |
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void DrawMapLine(const Surface &out, Point from, int height, std::uint8_t colorIndex) |
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{ |
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while (height-- > 0) { |
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out.SetPixel({ from.x, from.y + 1 }, 0); |
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out.SetPixel(from, colorIndex); |
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from.x += static_cast<int>(DirX); |
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out.SetPixel({ from.x, from.y + 1 }, 0); |
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out.SetPixel(from, colorIndex); |
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from.x += static_cast<int>(DirX); |
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from.y += static_cast<int>(DirY); |
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} |
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out.SetPixel({ from.x, from.y + 1 }, 0); |
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out.SetPixel(from, colorIndex); |
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} |
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template <DirectionX DirX, DirectionY DirY> |
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void DrawMapLineSteep(const Surface &out, Point from, int width, std::uint8_t colorIndex) |
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{ |
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while (width-- > 0) { |
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out.SetPixel(from, colorIndex); |
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from.y += static_cast<int>(DirY); |
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out.SetPixel(from, colorIndex); |
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from.y += static_cast<int>(DirY); |
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from.x += static_cast<int>(DirX); |
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} |
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out.SetPixel(from, colorIndex); |
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} |
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} // namespace |
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void DrawMapLineNE(const Surface &out, Point from, int height, std::uint8_t colorIndex) |
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{ |
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DrawMapLine<DirectionX::EAST, DirectionY::NORTH>(out, from, height, colorIndex); |
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} |
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void DrawMapLineSE(const Surface &out, Point from, int height, std::uint8_t colorIndex) |
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{ |
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DrawMapLine<DirectionX::EAST, DirectionY::SOUTH>(out, from, height, colorIndex); |
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} |
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void DrawMapLineNW(const Surface &out, Point from, int height, std::uint8_t colorIndex) |
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{ |
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DrawMapLine<DirectionX::WEST, DirectionY::NORTH>(out, from, height, colorIndex); |
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} |
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void DrawMapLineSW(const Surface &out, Point from, int height, std::uint8_t colorIndex) |
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{ |
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DrawMapLine<DirectionX::WEST, DirectionY::SOUTH>(out, from, height, colorIndex); |
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} |
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void DrawMapLineSteepNE(const Surface &out, Point from, int width, std::uint8_t colorIndex) |
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{ |
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DrawMapLineSteep<DirectionX::EAST, DirectionY::NORTH>(out, from, width, colorIndex); |
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} |
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void DrawMapLineSteepSE(const Surface &out, Point from, int width, std::uint8_t colorIndex) |
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{ |
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DrawMapLineSteep<DirectionX::EAST, DirectionY::SOUTH>(out, from, width, colorIndex); |
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} |
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void DrawMapLineSteepNW(const Surface &out, Point from, int width, std::uint8_t colorIndex) |
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{ |
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DrawMapLineSteep<DirectionX::WEST, DirectionY::NORTH>(out, from, width, colorIndex); |
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} |
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void DrawMapLineSteepSW(const Surface &out, Point from, int width, std::uint8_t colorIndex) |
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{ |
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DrawMapLineSteep<DirectionX::WEST, DirectionY::SOUTH>(out, from, width, colorIndex); |
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} |
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} // namespace devilution
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