tron@2186: /* $Id$ */
tron@2186: 
tron@1209: #ifndef TILE_H
tron@1209: #define TILE_H
tron@926: 
tron@1394: #include "macros.h"
tron@1209: #include "map.h"
tron@3636: #include "slope.h"
tron@1035: 
matthijs@1944: typedef enum TileTypes {
tron@1214: 	MP_CLEAR,
tron@1214: 	MP_RAILWAY,
tron@1214: 	MP_STREET,
tron@1214: 	MP_HOUSE,
tron@1214: 	MP_TREES,
tron@1214: 	MP_STATION,
tron@1214: 	MP_WATER,
tron@1214: 	MP_VOID, // invisible tiles at the SW and SE border
tron@1214: 	MP_INDUSTRY,
celestar@5590: 	//MP_TUNNELBRIDGE,
celestar@5590: 	MP_TUNNEL,
ludde@2125: 	MP_UNMOVABLE,
celestar@5590: 	MP_RAILWAY_BRIDGE,
celestar@5590: 	MP_STREET_BRIDGE
tron@1214: } TileType;
tron@1214: 
belugas@3379: typedef enum TropicZones {
rubidium@4344: 	TROPICZONE_INVALID    = 0,
rubidium@4344: 	TROPICZONE_DESERT     = 1,
belugas@3379: 	TROPICZONE_RAINFOREST = 2,
belugas@3379: } TropicZone;
tron@1211: 
tron@3636: Slope GetTileSlope(TileIndex tile, uint *h);
tron@1335: uint GetTileZ(TileIndex tile);
tron@3773: uint GetTileMaxZ(TileIndex tile);
tron@1335: 
tron@1044: static inline uint TileHeight(TileIndex tile)
tron@1044: {
tron@1044: 	assert(tile < MapSize());
tron@2049: 	return GB(_m[tile].type_height, 0, 4);
tron@1044: }
tron@1044: 
tron@1059: static inline void SetTileHeight(TileIndex tile, uint height)
tron@1059: {
tron@1059: 	assert(tile < MapSize());
tron@1059: 	assert(height < 16);
tron@2049: 	SB(_m[tile].type_height, 0, 4, height);
tron@1059: }
tron@1059: 
tron@1041: static inline uint TilePixelHeight(TileIndex tile)
tron@1035: {
tron@4077: 	return TileHeight(tile) * TILE_HEIGHT;
tron@1035: }
tron@1035: 
tron@1214: static inline TileType GetTileType(TileIndex tile)
tron@1035: {
tron@1035: 	assert(tile < MapSize());
KUDr@3900: 	return (TileType)GB(_m[tile].type_height, 4, 4);
tron@1035: }
tron@1035: 
tron@1214: static inline void SetTileType(TileIndex tile, TileType type)
tron@1059: {
tron@1059: 	assert(tile < MapSize());
tron@4010: 	/* VOID tiles (and no others) are exactly allowed at the lower left and right
tron@4077: 	 * edges of the map */
tron@4010: 	assert((TileX(tile) == MapMaxX() || TileY(tile) == MapMaxY()) == (type == MP_VOID));
tron@2049: 	SB(_m[tile].type_height, 4, 4, type);
tron@1059: }
tron@1059: 
tron@1214: static inline bool IsTileType(TileIndex tile, TileType type)
tron@1035: {
tron@1214: 	return GetTileType(tile) == type;
tron@1035: }
tron@1035: 
ludde@2125: 
tron@1333: static inline Owner GetTileOwner(TileIndex tile)
matthijs@1330: {
tron@1333: 	assert(tile < MapSize());
tron@1898: 	assert(!IsTileType(tile, MP_HOUSE));
tron@1898: 	assert(!IsTileType(tile, MP_VOID));
tron@1898: 	assert(!IsTileType(tile, MP_INDUSTRY));
tron@1898: 
KUDr@3900: 	return (Owner)_m[tile].m1;
matthijs@1330: }
matthijs@1330: 
tron@1902: static inline void SetTileOwner(TileIndex tile, Owner owner)
tron@1902: {
tron@1902: 	assert(tile < MapSize());
tron@1902: 	assert(!IsTileType(tile, MP_HOUSE));
tron@1902: 	assert(!IsTileType(tile, MP_VOID));
tron@1902: 	assert(!IsTileType(tile, MP_INDUSTRY));
tron@1902: 
tron@2360: 	_m[tile].m1 = owner;
tron@1902: }
tron@1902: 
matthijs@1330: static inline bool IsTileOwner(TileIndex tile, Owner owner)
matthijs@1330: {
matthijs@1330: 	return GetTileOwner(tile) == owner;
matthijs@1330: }
matthijs@1330: 
belugas@3379: /**
belugas@3379:  * Set the tropic zone
belugas@3379:  * @param tile the tile to set the zone of
belugas@3379:  * @param type the new type
belugas@3379:  * @pre assert(tile < MapSize());
belugas@3379:  */
belugas@3379: static inline void SetTropicZone(TileIndex tile, TropicZone type)
belugas@3379: {
belugas@3379: 	assert(tile < MapSize());
belugas@3379: 	SB(_m[tile].extra, 0, 2, type);
belugas@3379: }
belugas@3379: 
belugas@3379: /**
belugas@3379:  * Get the tropic zone
belugas@3379:  * @param tile the tile to get the zone of
belugas@3379:  * @pre assert(tile < MapSize());
belugas@3379:  * @return the zone type
belugas@3379:  */
belugas@3379: static inline TropicZone GetTropicZone(TileIndex tile)
belugas@3379: {
belugas@3379: 	assert(tile < MapSize());
belugas@3379: 	return (TropicZone)GB(_m[tile].extra, 0, 2);
belugas@3379: }
Darkvater@2436: #endif /* TILE_H */