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73 lines
2.1 KiB
C++
73 lines
2.1 KiB
C++
#ifndef BBGE_RENDERGRID_H
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#define BBGE_RENDERGRID_H
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#include "Vector.h"
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#include "DataStructures.h"
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struct RenderState;
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enum GridDrawOrder
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{
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GRID_DRAW_LRTB = 0, // the default. ignores grid.z
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GRID_DRAW_LRBT = 1, // Y axis inverted
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GRID_DRAW_WORLDMAP = 2, // LRTB order, uses grid.z as alpha
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GRID_DRAW_DEFAULT = GRID_DRAW_LRTB
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};
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enum GridType
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{
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GRID_UNDEFINED = 0,
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GRID_WAVY = 1,
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GRID_STRIP = 2, // quad is in strip mode
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GRID_INTERP = 3, // quad is in grid mode
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};
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class RenderGrid
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{
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public:
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RenderGrid(size_t w, size_t h);
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~RenderGrid();
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void init(size_t w, size_t h);
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void reset();
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void resetWithAlpha(float a);
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void update(float dt);
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void render(const RenderState& rs, const Vector& upperLeftTexCoords, const Vector& lowerRightTexCoords) const;
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void renderDebugPoints(const RenderState& rs) const;
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void setAlpha(size_t x, size_t y, float a);
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void setSegs(float dgox, float dgoy, float dgmx, float dgmy, float dgtm, bool dgo);
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void setStripPoints(bool vert, const Vector *points, size_t n);
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void setFromWavy(const Vector *wavy, size_t len, float width);
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size_t width() const { return grid.width(); }
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size_t height() const { return grid.height(); }
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size_t linearsize() const { return grid.linearsize(); }
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const Vector *data() const { return grid.data(); }
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Vector *data() { return grid.data(); }
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Array2d<Vector>& array2d() { return grid; }
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const Array2d<Vector>& array2d() const { return grid; }
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static void ResetWithAlpha(Vector* dst, size_t w, size_t h, float alpha);
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protected:
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Array2d<Vector> grid;
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float gridTimer;
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float drawGridOffsetX;
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float drawGridOffsetY;
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float drawGridModX;
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float drawGridModY;
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float drawGridTimeMultiplier;
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bool drawGridOut;
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public:
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unsigned char gridType; // unsigned char to save space
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unsigned char drawOrder;
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void render_LRTB(const RenderState& rs, const Vector& upperLeftTexCoords, const Vector& lowerRightTexCoords) const;
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void render_LRBT(const RenderState& rs, const Vector& upperLeftTexCoords, const Vector& lowerRightTexCoords) const;
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void render_WithAlpha(const RenderState& rs, const Vector& upperLeftTexCoords, const Vector& lowerRightTexCoords) const;
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};
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#endif
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