# landscape.h

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    00001 /* $Id: landscape.h 15582 2009-02-25 21:24:42Z frosch $ */
    00002
    00005 #ifndef LANDSCAPE_H
    00006 #define LANDSCAPE_H
    00007
    00008 #include "core/geometry_type.hpp"
    00009 #include "tile_cmd.h"
    00010 #include "slope_type.h"
    00011 #include "direction_type.h"
    00012
    00013 enum {
    00014   SNOW_LINE_MONTHS = 12,
    00015   SNOW_LINE_DAYS   = 32,
    00016 };
    00017
    00020 struct SnowLine {
    00021   byte table[SNOW_LINE_MONTHS][SNOW_LINE_DAYS];
    00022   byte highest_value;
    00023   byte lowest_value;
    00024 };
    00025
    00026 bool IsSnowLineSet(void);
    00027 void SetSnowLine(byte table[SNOW_LINE_MONTHS][SNOW_LINE_DAYS]);
    00028 byte GetSnowLine(void);
    00029 byte HighestSnowLine(void);
    00030 byte LowestSnowLine(void);
    00031 void ClearSnowLine(void);
    00032
    00033 uint GetPartialZ(int x, int y, Slope corners);
    00034 uint GetSlopeZ(int x, int y);
    00035 void GetSlopeZOnEdge(Slope tileh, DiagDirection edge, int *z1, int *z2);
    00036 int GetSlopeZInCorner(Slope tileh, Corner corner);
    00037 Slope GetFoundationSlope(TileIndex tile, uint *z);
    00038
    00039 static inline Point RemapCoords(int x, int y, int z)
    00040 {
    00041   Point pt;
    00042   pt.x = (y - x) * 2;
    00043   pt.y = y + x - z;
    00044   return pt;
    00045 }
    00046
    00047 static inline Point RemapCoords2(int x, int y)
    00048 {
    00049   return RemapCoords(x, y, GetSlopeZ(x, y));
    00050 }
    00051
    00052 uint ApplyFoundationToSlope(Foundation f, Slope *s);
    00053 void DrawFoundation(TileInfo *ti, Foundation f);
    00054
    00055 void DoClearSquare(TileIndex tile);
    00056 void RunTileLoop();
    00057
    00058 void InitializeLandscape();
    00059 void GenerateLandscape(byte mode);
    00060
    00061 #endif /* LANDSCAPE_H */