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@@ -32,32 +32,48 @@ bool IsSnowLineSet();
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void SetSnowLine(byte table[SNOW_LINE_MONTHS][SNOW_LINE_DAYS]);
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byte GetSnowLine();
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byte HighestSnowLine();
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byte LowestSnowLine();
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void ClearSnowLine();
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uint GetPartialZ(int x, int y, Slope corners);
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uint GetSlopeZ(int x, int y);
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void GetSlopeZOnEdge(Slope tileh, DiagDirection edge, int *z1, int *z2);
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int GetSlopeZInCorner(Slope tileh, Corner corner);
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Slope GetFoundationSlope(TileIndex tile, uint *z);
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/**
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* Map 3D world or tile coordinate to equivalent 2D coordinate as used in the viewports and smallmap.
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* @param x X world or tile coordinate (runs in SW direction in the 2D view).
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* @param y Y world or tile coordinate (runs in SE direction in the 2D view).
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* @param z Z world or tile coordinate (runs in N direction in the 2D view).
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* @return Equivalent coordinate in the 2D view.
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* @see RemapCoords2
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*/
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static inline Point RemapCoords(int x, int y, int z)
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{
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Point pt;
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pt.x = (y - x) * 2;
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pt.y = y + x - z;
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return pt;
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}
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/**
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* Map 3D world or tile coordinate to equivalent 2D coordinate as used in the viewports and smallmap.
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* Same as #RemapCoords, except the Z coordinate is read from the map.
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* @param x X world or tile coordinate (runs in SW direction in the 2D view).
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* @param y Y world or tile coordinate (runs in SE direction in the 2D view).
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* @return Equivalent coordinate in the 2D view.
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* @see RemapCoords
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*/
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static inline Point RemapCoords2(int x, int y)
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{
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return RemapCoords(x, y, GetSlopeZ(x, y));
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}
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uint ApplyFoundationToSlope(Foundation f, Slope *s);
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void DrawFoundation(TileInfo *ti, Foundation f);
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bool HasFoundationNW(TileIndex tile, Slope slope_here, uint z_here);
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bool HasFoundationNE(TileIndex tile, Slope slope_here, uint z_here);
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void DoClearSquare(TileIndex tile);
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void RunTileLoop();
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