town_map.h

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00001 /* $Id: town_map.h 18809 2010-01-15 16:41:15Z rubidium $ */
00002 
00003 /*
00004  * This file is part of OpenTTD.
00005  * OpenTTD is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2.
00006  * OpenTTD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
00007  * See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>.
00008  */
00009 
00012 #ifndef TOWN_MAP_H
00013 #define TOWN_MAP_H
00014 
00015 #include "road_map.h"
00016 #include "house.h"
00017 
00024 static inline TownID GetTownIndex(TileIndex t)
00025 {
00026   assert(IsTileType(t, MP_HOUSE) || (IsTileType(t, MP_ROAD) && !IsRoadDepot(t)));
00027   return _m[t].m2;
00028 }
00029 
00036 static inline void SetTownIndex(TileIndex t, TownID index)
00037 {
00038   assert(IsTileType(t, MP_HOUSE) || (IsTileType(t, MP_ROAD) && !IsRoadDepot(t)));
00039   _m[t].m2 = index;
00040 }
00041 
00049 static inline HouseID GetCleanHouseType(TileIndex t)
00050 {
00051   assert(IsTileType(t, MP_HOUSE));
00052   return _m[t].m4 | (GB(_m[t].m3, 6, 1) << 8);
00053 }
00054 
00061 static inline HouseID GetHouseType(TileIndex t)
00062 {
00063   return GetTranslatedHouseID(GetCleanHouseType(t));
00064 }
00065 
00072 static inline void SetHouseType(TileIndex t, HouseID house_id)
00073 {
00074   assert(IsTileType(t, MP_HOUSE));
00075   _m[t].m4 = GB(house_id, 0, 8);
00076   SB(_m[t].m3, 6, 1, GB(house_id, 8, 1));
00077 }
00078 
00084 static inline bool LiftHasDestination(TileIndex t)
00085 {
00086   return HasBit(_me[t].m7, 0);
00087 }
00088 
00095 static inline void SetLiftDestination(TileIndex t, byte dest)
00096 {
00097   SetBit(_me[t].m7, 0);
00098   SB(_me[t].m7, 1, 3, dest);
00099 }
00100 
00106 static inline byte GetLiftDestination(TileIndex t)
00107 {
00108   return GB(_me[t].m7, 1, 3);
00109 }
00110 
00117 static inline void HaltLift(TileIndex t)
00118 {
00119   SB(_me[t].m7, 0, 4, 0);
00120 }
00121 
00127 static inline byte GetLiftPosition(TileIndex t)
00128 {
00129   return GB(_m[t].m6, 2, 6);
00130 }
00131 
00137 static inline void SetLiftPosition(TileIndex t, byte pos)
00138 {
00139   SB(_m[t].m6, 2, 6, pos);
00140 }
00141 
00148 static inline byte GetHouseAnimationFrame(TileIndex t)
00149 {
00150   assert(IsTileType(t, MP_HOUSE));
00151   return GB(_m[t].m6, 2, 6) | (GB(_m[t].m3, 5, 1) << 6);
00152 }
00153 
00160 static inline void SetHouseAnimationFrame(TileIndex t, byte frame)
00161 {
00162   assert(IsTileType(t, MP_HOUSE));
00163   SB(_m[t].m6, 2, 6, GB(frame, 0, 6));
00164   SB(_m[t].m3, 5, 1, GB(frame, 6, 1));
00165 }
00166 
00172 static inline bool IsHouseCompleted(TileIndex t)
00173 {
00174   assert(IsTileType(t, MP_HOUSE));
00175   return HasBit(_m[t].m3, 7);
00176 }
00177 
00183 static inline void SetHouseCompleted(TileIndex t, bool status)
00184 {
00185   assert(IsTileType(t, MP_HOUSE));
00186   SB(_m[t].m3, 7, 1, !!status);
00187 }
00188 
00199 static inline void MakeHouseTile(TileIndex t, TownID tid, byte counter, byte stage, HouseID type, byte random_bits)
00200 {
00201   assert(IsTileType(t, MP_CLEAR));
00202 
00203   SetTileType(t, MP_HOUSE);
00204   _m[t].m1 = random_bits;
00205   _m[t].m2 = tid;
00206   _m[t].m3 = 0;
00207   SetHouseType(t, type);
00208   SetHouseCompleted(t, stage == TOWN_HOUSE_COMPLETED);
00209   _m[t].m5 = IsHouseCompleted(t) ? 0 : (stage << 3 | counter);
00210   SetHouseAnimationFrame(t, 0);
00211   _me[t].m7 = HouseSpec::Get(type)->processing_time;
00212 }
00213 
00235 static inline byte GetHouseBuildingStage(TileIndex t)
00236 {
00237   assert(IsTileType(t, MP_HOUSE));
00238   return IsHouseCompleted(t) ? (byte)TOWN_HOUSE_COMPLETED : GB(_m[t].m5, 3, 2);
00239 }
00240 
00247 static inline byte GetHouseConstructionTick(TileIndex t)
00248 {
00249   assert(IsTileType(t, MP_HOUSE));
00250   return IsHouseCompleted(t) ? 0 : GB(_m[t].m5, 0, 3);
00251 }
00252 
00260 static inline void IncHouseConstructionTick(TileIndex t)
00261 {
00262   assert(IsTileType(t, MP_HOUSE));
00263   AB(_m[t].m5, 0, 5, 1);
00264 
00265   if (GB(_m[t].m5, 3, 2) == TOWN_HOUSE_COMPLETED) {
00266     /* House is now completed.
00267      * Store the year of construction as well, for newgrf house purpose */
00268     SetHouseCompleted(t, true);
00269   }
00270 }
00271 
00278 static inline void ResetHouseAge(TileIndex t)
00279 {
00280   assert(IsTileType(t, MP_HOUSE) && IsHouseCompleted(t));
00281   _m[t].m5 = 0;
00282 }
00283 
00289 static inline void IncrementHouseAge(TileIndex t)
00290 {
00291   assert(IsTileType(t, MP_HOUSE));
00292   if (IsHouseCompleted(t) && _m[t].m5 < 0xFF) _m[t].m5++;
00293 }
00294 
00301 static inline Year GetHouseAge(TileIndex t)
00302 {
00303   assert(IsTileType(t, MP_HOUSE));
00304   return IsHouseCompleted(t) ? _m[t].m5 : 0;
00305 }
00306 
00314 static inline void SetHouseRandomBits(TileIndex t, byte random)
00315 {
00316   assert(IsTileType(t, MP_HOUSE));
00317   _m[t].m1 = random;
00318 }
00319 
00327 static inline byte GetHouseRandomBits(TileIndex t)
00328 {
00329   assert(IsTileType(t, MP_HOUSE));
00330   return _m[t].m1;
00331 }
00332 
00340 static inline void SetHouseTriggers(TileIndex t, byte triggers)
00341 {
00342   assert(IsTileType(t, MP_HOUSE));
00343   SB(_m[t].m3, 0, 5, triggers);
00344 }
00345 
00353 static inline byte GetHouseTriggers(TileIndex t)
00354 {
00355   assert(IsTileType(t, MP_HOUSE));
00356   return GB(_m[t].m3, 0, 5);
00357 }
00358 
00365 static inline byte GetHouseProcessingTime(TileIndex t)
00366 {
00367   assert(IsTileType(t, MP_HOUSE));
00368   return _me[t].m7;
00369 }
00370 
00377 static inline void SetHouseProcessingTime(TileIndex t, byte time)
00378 {
00379   assert(IsTileType(t, MP_HOUSE));
00380   _me[t].m7 = time;
00381 }
00382 
00388 static inline void DecHouseProcessingTime(TileIndex t)
00389 {
00390   assert(IsTileType(t, MP_HOUSE));
00391   _me[t].m7--;
00392 }
00393 
00394 #endif /* TOWN_MAP_H */

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