tree_map.h

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00001 /* $Id: tree_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 TREE_MAP_H
00013 #define TREE_MAP_H
00014 
00015 #include "tile_map.h"
00016 
00028 enum TreeType {
00029   TREE_INVALID      = -1,   
00030   TREE_TEMPERATE    = 0x00, 
00031   TREE_SUB_ARCTIC   = 0x0C, 
00032   TREE_RAINFOREST   = 0x14, 
00033   TREE_CACTUS       = 0x1B, 
00034   TREE_SUB_TROPICAL = 0x1C, 
00035   TREE_TOYLAND      = 0x20, 
00036 };
00037 
00045 enum {
00046   TREE_COUNT_TEMPERATE    = TREE_SUB_ARCTIC   - TREE_TEMPERATE,  
00047   TREE_COUNT_SUB_ARCTIC   = TREE_RAINFOREST   - TREE_SUB_ARCTIC, 
00048   TREE_COUNT_RAINFOREST   = TREE_CACTUS       - TREE_RAINFOREST, 
00049   TREE_COUNT_SUB_TROPICAL = TREE_SUB_TROPICAL - TREE_CACTUS,     
00050   TREE_COUNT_TOYLAND      = 9                                    
00051 };
00052 
00058 enum TreeGround {
00059   TREE_GROUND_GRASS       = 0, 
00060   TREE_GROUND_ROUGH       = 1, 
00061   TREE_GROUND_SNOW_DESERT = 2, 
00062   TREE_GROUND_SHORE       = 3, 
00063   TREE_GROUND_ROUGH_SNOW  = 4, 
00064 };
00065 
00066 
00079 static inline TreeType GetTreeType(TileIndex t)
00080 {
00081   assert(IsTileType(t, MP_TREES));
00082   return (TreeType)_m[t].m3;
00083 }
00084 
00094 static inline TreeGround GetTreeGround(TileIndex t)
00095 {
00096   assert(IsTileType(t, MP_TREES));
00097   return (TreeGround)GB(_m[t].m2, 6, 3);
00098 }
00099 
00119 static inline uint GetTreeDensity(TileIndex t)
00120 {
00121   assert(IsTileType(t, MP_TREES));
00122   return GB(_m[t].m2, 4, 2);
00123 }
00124 
00136 static inline void SetTreeGroundDensity(TileIndex t, TreeGround g, uint d)
00137 {
00138   assert(IsTileType(t, MP_TREES)); // XXX incomplete
00139   SB(_m[t].m2, 4, 2, d);
00140   SB(_m[t].m2, 6, 3, g);
00141 }
00142 
00154 static inline uint GetTreeCount(TileIndex t)
00155 {
00156   assert(IsTileType(t, MP_TREES));
00157   return GB(_m[t].m5, 6, 2) + 1;
00158 }
00159 
00171 static inline void AddTreeCount(TileIndex t, int c)
00172 {
00173   assert(IsTileType(t, MP_TREES)); // XXX incomplete
00174   _m[t].m5 += c << 6;
00175 }
00176 
00186 static inline uint GetTreeGrowth(TileIndex t)
00187 {
00188   assert(IsTileType(t, MP_TREES));
00189   return GB(_m[t].m5, 0, 3);
00190 }
00191 
00201 static inline void AddTreeGrowth(TileIndex t, int a)
00202 {
00203   assert(IsTileType(t, MP_TREES)); // XXX incomplete
00204   _m[t].m5 += a;
00205 }
00206 
00217 static inline void SetTreeGrowth(TileIndex t, uint g)
00218 {
00219   assert(IsTileType(t, MP_TREES)); // XXX incomplete
00220   SB(_m[t].m5, 0, 3, g);
00221 }
00222 
00231 static inline uint GetTreeCounter(TileIndex t)
00232 {
00233   assert(IsTileType(t, MP_TREES));
00234   return GB(_m[t].m2, 0, 4);
00235 }
00236 
00246 static inline void AddTreeCounter(TileIndex t, int a)
00247 {
00248   assert(IsTileType(t, MP_TREES)); // XXX incomplete
00249   _m[t].m2 += a;
00250 }
00251 
00261 static inline void SetTreeCounter(TileIndex t, uint c)
00262 {
00263   assert(IsTileType(t, MP_TREES)); // XXX incomplete
00264   SB(_m[t].m2, 0, 4, c);
00265 }
00266 
00279 static inline void MakeTree(TileIndex t, TreeType type, uint count, uint growth, TreeGround ground, uint density)
00280 {
00281   SetTileType(t, MP_TREES);
00282   SetTileOwner(t, OWNER_NONE);
00283   _m[t].m2 = ground << 6 | density << 4 | 0;
00284   _m[t].m3 = type;
00285   _m[t].m4 = 0 << 5 | 0 << 2;
00286   _m[t].m5 = count << 6 | growth;
00287   SB(_m[t].m6, 2, 4, 0);
00288   _me[t].m7 = 0;
00289 }
00290 
00291 #endif /* TREE_MAP_H */

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