tile_map.h

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00001 /* $Id: tile_map.h 15190 2009-01-21 02:31:55Z Yexo $ */
00002 
00005 #ifndef TILE_MAP_H
00006 #define TILE_MAP_H
00007 
00008 #include "tile_type.h"
00009 #include "slope_type.h"
00010 #include "company_type.h"
00011 #include "map_func.h"
00012 #include "core/bitmath_func.hpp"
00013 #include "settings_type.h"
00014 
00026 static inline uint TileHeight(TileIndex tile)
00027 {
00028   assert(tile < MapSize());
00029   return GB(_m[tile].type_height, 0, 4);
00030 }
00031 
00042 static inline void SetTileHeight(TileIndex tile, uint height)
00043 {
00044   assert(tile < MapSize());
00045   assert(height <= MAX_TILE_HEIGHT);
00046   SB(_m[tile].type_height, 0, 4, height);
00047 }
00048 
00057 static inline uint TilePixelHeight(TileIndex tile)
00058 {
00059   return TileHeight(tile) * TILE_HEIGHT;
00060 }
00061 
00069 static inline TileType GetTileType(TileIndex tile)
00070 {
00071   assert(tile < MapSize());
00072   return (TileType)GB(_m[tile].type_height, 4, 4);
00073 }
00074 
00087 static inline void SetTileType(TileIndex tile, TileType type)
00088 {
00089   assert(tile < MapSize());
00090   /* VOID tiles (and no others) are exactly allowed at the lower left and right
00091    * edges of the map. If _settings_game.construction.freeform_edges is true,
00092    * the upper edges of the map are also VOID tiles. */
00093   assert((TileX(tile) == MapMaxX() || TileY(tile) == MapMaxY() || (_settings_game.construction.freeform_edges && (TileX(tile) == 0 || TileY(tile) == 0))) == (type == MP_VOID));
00094   SB(_m[tile].type_height, 4, 4, type);
00095 }
00096 
00106 static inline bool IsTileType(TileIndex tile, TileType type)
00107 {
00108   return GetTileType(tile) == type;
00109 }
00110 
00117 static inline bool IsValidTile(TileIndex tile)
00118 {
00119   return tile < MapSize() && !IsTileType(tile, MP_VOID);
00120 }
00121 
00134 static inline Owner GetTileOwner(TileIndex tile)
00135 {
00136   assert(IsValidTile(tile));
00137   assert(!IsTileType(tile, MP_HOUSE));
00138   assert(!IsTileType(tile, MP_INDUSTRY));
00139 
00140   return (Owner)_m[tile].m1;
00141 }
00142 
00154 static inline void SetTileOwner(TileIndex tile, Owner owner)
00155 {
00156   assert(IsValidTile(tile));
00157   assert(!IsTileType(tile, MP_HOUSE));
00158   assert(!IsTileType(tile, MP_INDUSTRY));
00159 
00160   _m[tile].m1 = owner;
00161 }
00162 
00170 static inline bool IsTileOwner(TileIndex tile, Owner owner)
00171 {
00172   return GetTileOwner(tile) == owner;
00173 }
00174 
00181 static inline void SetTropicZone(TileIndex tile, TropicZone type)
00182 {
00183   assert(tile < MapSize());
00184   SB(_m[tile].m6, 0, 2, type);
00185 }
00186 
00193 static inline TropicZone GetTropicZone(TileIndex tile)
00194 {
00195   assert(tile < MapSize());
00196   return (TropicZone)GB(_m[tile].m6, 0, 2);
00197 }
00198 
00199 Slope GetTileSlope(TileIndex tile, uint *h);
00200 uint GetTileZ(TileIndex tile);
00201 uint GetTileMaxZ(TileIndex tile);
00202 
00203 #endif /* TILE_TYPE_H */

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