tile_map.h

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00001 /* $Id: tile_map.h 12303 2008-02-28 00:10:08Z glx $ */
00002 
00005 #ifndef TILE_MAP_H
00006 #define TILE_MAP_H
00007 
00008 #include "tile_type.h"
00009 #include "slope_type.h"
00010 #include "player_type.h"
00011 #include "map_func.h"
00012 #include "core/bitmath_func.hpp"
00013 
00025 static inline uint TileHeight(TileIndex tile)
00026 {
00027   assert(tile < MapSize());
00028   return GB(_m[tile].type_height, 0, 4);
00029 }
00030 
00041 static inline void SetTileHeight(TileIndex tile, uint height)
00042 {
00043   assert(tile < MapSize());
00044   assert(height <= MAX_TILE_HEIGHT);
00045   SB(_m[tile].type_height, 0, 4, height);
00046 }
00047 
00056 static inline uint TilePixelHeight(TileIndex tile)
00057 {
00058   return TileHeight(tile) * TILE_HEIGHT;
00059 }
00060 
00068 static inline TileType GetTileType(TileIndex tile)
00069 {
00070   assert(tile < MapSize());
00071   return (TileType)GB(_m[tile].type_height, 4, 4);
00072 }
00073 
00086 static inline void SetTileType(TileIndex tile, TileType type)
00087 {
00088   assert(tile < MapSize());
00089   /* VOID tiles (and no others) are exactly allowed at the lower left and right
00090    * edges of the map */
00091   assert((TileX(tile) == MapMaxX() || TileY(tile) == MapMaxY()) == (type == MP_VOID));
00092   SB(_m[tile].type_height, 4, 4, type);
00093 }
00094 
00104 static inline bool IsTileType(TileIndex tile, TileType type)
00105 {
00106   return GetTileType(tile) == type;
00107 }
00108 
00115 static inline bool IsValidTile(TileIndex tile)
00116 {
00117   return tile < MapSize() && !IsTileType(tile, MP_VOID);
00118 }
00119 
00132 static inline Owner GetTileOwner(TileIndex tile)
00133 {
00134   assert(IsValidTile(tile));
00135   assert(!IsTileType(tile, MP_HOUSE));
00136   assert(!IsTileType(tile, MP_INDUSTRY));
00137 
00138   return (Owner)_m[tile].m1;
00139 }
00140 
00152 static inline void SetTileOwner(TileIndex tile, Owner owner)
00153 {
00154   assert(IsValidTile(tile));
00155   assert(!IsTileType(tile, MP_HOUSE));
00156   assert(!IsTileType(tile, MP_INDUSTRY));
00157 
00158   _m[tile].m1 = owner;
00159 }
00160 
00168 static inline bool IsTileOwner(TileIndex tile, Owner owner)
00169 {
00170   return GetTileOwner(tile) == owner;
00171 }
00172 
00179 static inline void SetTropicZone(TileIndex tile, TropicZone type)
00180 {
00181   assert(tile < MapSize());
00182   SB(_m[tile].m6, 0, 2, type);
00183 }
00184 
00191 static inline TropicZone GetTropicZone(TileIndex tile)
00192 {
00193   assert(tile < MapSize());
00194   return (TropicZone)GB(_m[tile].m6, 0, 2);
00195 }
00196 
00197 Slope GetTileSlope(TileIndex tile, uint *h);
00198 uint GetTileZ(TileIndex tile);
00199 uint GetTileMaxZ(TileIndex tile);
00200 
00201 #endif /* TILE_TYPE_H */

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