# tree_map.h

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    00001 /* $Id$ */
    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
    00026 enum TreeType {
    00027   TREE_INVALID      = -1,
    00028   TREE_TEMPERATE    = 0x00,
    00029   TREE_SUB_ARCTIC   = 0x0C,
    00030   TREE_RAINFOREST   = 0x14,
    00031   TREE_CACTUS       = 0x1B,
    00032   TREE_SUB_TROPICAL = 0x1C,
    00033   TREE_TOYLAND      = 0x20,
    00034 };
    00035
    00043 enum {
    00044   TREE_COUNT_TEMPERATE    = TREE_SUB_ARCTIC   - TREE_TEMPERATE,
    00045   TREE_COUNT_SUB_ARCTIC   = TREE_RAINFOREST   - TREE_SUB_ARCTIC,
    00046   TREE_COUNT_RAINFOREST   = TREE_CACTUS       - TREE_RAINFOREST,
    00047   TREE_COUNT_SUB_TROPICAL = TREE_SUB_TROPICAL - TREE_CACTUS,
    00048   TREE_COUNT_TOYLAND      = 9
    00049 };
    00050
    00056 enum TreeGround {
    00057   TREE_GROUND_GRASS       = 0,
    00058   TREE_GROUND_ROUGH       = 1,
    00059   TREE_GROUND_SNOW_DESERT = 2,
    00060   TREE_GROUND_SHORE       = 3,
    00061 };
    00062
    00063
    00076 static inline TreeType GetTreeType(TileIndex t)
    00077 {
    00078   assert(IsTileType(t, MP_TREES));
    00079   return (TreeType)_m[t].m3;
    00080 }
    00081
    00091 static inline TreeGround GetTreeGround(TileIndex t)
    00092 {
    00093   assert(IsTileType(t, MP_TREES));
    00094   return (TreeGround)GB(_m[t].m2, 4, 2);
    00095 }
    00096
    00116 static inline uint GetTreeDensity(TileIndex t)
    00117 {
    00118   assert(IsTileType(t, MP_TREES));
    00119   return GB(_m[t].m2, 6, 2);
    00120 }
    00121
    00133 static inline void SetTreeGroundDensity(TileIndex t, TreeGround g, uint d)
    00134 {
    00135   assert(IsTileType(t, MP_TREES)); // XXX incomplete
    00136   SB(_m[t].m2, 4, 2, g);
    00137   SB(_m[t].m2, 6, 2, d);
    00138 }
    00139
    00151 static inline uint GetTreeCount(TileIndex t)
    00152 {
    00153   assert(IsTileType(t, MP_TREES));
    00154   return GB(_m[t].m5, 6, 2) + 1;
    00155 }
    00156
    00168 static inline void AddTreeCount(TileIndex t, int c)
    00169 {
    00170   assert(IsTileType(t, MP_TREES)); // XXX incomplete
    00171   _m[t].m5 += c << 6;
    00172 }
    00173
    00183 static inline uint GetTreeGrowth(TileIndex t)
    00184 {
    00185   assert(IsTileType(t, MP_TREES));
    00186   return GB(_m[t].m5, 0, 3);
    00187 }
    00188
    00198 static inline void AddTreeGrowth(TileIndex t, int a)
    00199 {
    00200   assert(IsTileType(t, MP_TREES)); // XXX incomplete
    00201   _m[t].m5 += a;
    00202 }
    00203
    00214 static inline void SetTreeGrowth(TileIndex t, uint g)
    00215 {
    00216   assert(IsTileType(t, MP_TREES)); // XXX incomplete
    00217   SB(_m[t].m5, 0, 3, g);
    00218 }
    00219
    00228 static inline uint GetTreeCounter(TileIndex t)
    00229 {
    00230   assert(IsTileType(t, MP_TREES));
    00231   return GB(_m[t].m2, 0, 4);
    00232 }
    00233
    00243 static inline void AddTreeCounter(TileIndex t, int a)
    00244 {
    00245   assert(IsTileType(t, MP_TREES)); // XXX incomplete
    00246   _m[t].m2 += a;
    00247 }
    00248
    00258 static inline void SetTreeCounter(TileIndex t, uint c)
    00259 {
    00260   assert(IsTileType(t, MP_TREES)); // XXX incomplete
    00261   SB(_m[t].m2, 0, 4, c);
    00262 }
    00263
    00276 static inline void MakeTree(TileIndex t, TreeType type, uint count, uint growth, TreeGround ground, uint density)
    00277 {
    00278   SetTileType(t, MP_TREES);
    00279   SetTileOwner(t, OWNER_NONE);
    00280   _m[t].m2 = density << 6 | ground << 4 | 0;
    00281   _m[t].m3 = type;
    00282   _m[t].m4 = 0 << 5 | 0 << 2;
    00283   _m[t].m5 = count << 6 | growth;
    00284   SB(_m[t].m6, 2, 4, 0);
    00285   _me[t].m7 = 0;
    00286 }
    00287
    00288 #endif /* TREE_MAP_H */