24 bool IsValidTile(TileIndex tile);

    24 bool IsValidTile(TileIndex tile);

    25 

    25 

    26 uint GetPartialZ(int x, int y, Slope corners);

    26 uint GetPartialZ(int x, int y, Slope corners);

    27 uint GetSlopeZ(int x, int y);

    27 uint GetSlopeZ(int x, int y);

    28 void GetSlopeZOnEdge(Slope tileh, DiagDirection edge, int *z1, int *z2);

    28 void GetSlopeZOnEdge(Slope tileh, DiagDirection edge, int *z1, int *z2);

    29 

    30 

    30 static inline Point RemapCoords(int x, int y, int z)

    31 static inline Point RemapCoords(int x, int y, int z)

    31 {

    32 {

    32 	Point pt;

    33 	Point pt;

    33 	pt.x = (y - x) * 2;

    34 	pt.x = (y - x) * 2;