tron@2955: /* $Id$ */
tron@2955: 
tron@3145: #ifndef CLEAR_MAP_H
tron@3145: #define CLEAR_MAP_H
tron@2955: 
tron@2955: #include "macros.h"
tron@3076: #include "tile.h"
tron@2955: 
tron@2955: /* ground type, m5 bits 2...4
tron@2955:  * valid densities (bits 0...1) in comments after the enum
tron@2955:  */
tron@2955: typedef enum ClearGround {
tron@2955: 	CL_GRASS  = 0, // 0-3
tron@2955: 	CL_ROUGH  = 1, // 3
tron@2955: 	CL_ROCKS  = 2, // 3
tron@2955: 	CL_FIELDS = 3, // 3
tron@2955: 	CL_SNOW   = 4, // 0-3
tron@2955: 	CL_DESERT = 5  // 1,3
tron@2955: } ClearGround;
tron@2955: 
tron@2955: static inline ClearGround GetClearGround(TileIndex t) { return GB(_m[t].m5, 2, 3); }
tron@2955: static inline bool IsClearGround(TileIndex t, ClearGround ct) { return GetClearGround(t) == ct; }
tron@2955: 
tron@2955: static inline void AddClearDensity(TileIndex t, int d) { _m[t].m5 += d; }
tron@2955: static inline uint GetClearDensity(TileIndex t) { return GB(_m[t].m5, 0, 2); }
tron@2955: 
tron@2955: static inline void AddClearCounter(TileIndex t, int c) { _m[t].m5 += c << 5; }
tron@2955: static inline uint GetClearCounter(TileIndex t) { return GB(_m[t].m5, 5, 3); }
tron@2955: static inline void SetClearCounter(TileIndex t, uint c) { SB(_m[t].m5, 5, 3, c); }
tron@2955: 
tron@2955: /* Sets type and density in one go, also sets the counter to 0 */
tron@2955: static inline void SetClearGroundDensity(TileIndex t, ClearGround type, uint density)
tron@2955: {
tron@2955: 	_m[t].m5 = 0 << 5 | type << 2 | density;
tron@2955: }
tron@2955: 
tron@2979: static inline uint GetFieldType(TileIndex t) { return GB(_m[t].m3, 0, 4); }
tron@2979: static inline void SetFieldType(TileIndex t, uint f) { SB(_m[t].m3, 0, 4, f); }
tron@2979: 
tron@2979: /* Is used by tree tiles, too */
tron@2979: static inline uint GetFenceSE(TileIndex t) { return GB(_m[t].m4, 2, 3); }
tron@2979: static inline void SetFenceSE(TileIndex t, uint h) { SB(_m[t].m4, 2, 3, h); }
tron@2979: 
tron@2979: static inline uint GetFenceSW(TileIndex t) { return GB(_m[t].m4, 5, 3); }
tron@2979: static inline void SetFenceSW(TileIndex t, uint h) { SB(_m[t].m4, 5, 3, h); }
tron@2979: 
tron@3076: 
tron@3076: static inline void MakeClear(TileIndex t, ClearGround g, uint density)
tron@3076: {
tron@3076: 	SetTileType(t, MP_CLEAR);
tron@3076: 	SetTileOwner(t, OWNER_NONE);
tron@3076: 	_m[t].m2 = 0;
tron@3076: 	_m[t].m3 = 0;
tron@3076: 	_m[t].m4 = 0 << 5 | 0 << 2;
tron@3076: 	_m[t].m5 = 0 << 5 | g << 2 | density;
tron@3076: }
tron@3076: 
tron@2955: #endif