tree_map.h

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00001 /* $Id: tree_map.h 19741 2010-04-30 21:01:21Z 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 
00026 enum TreeType {
00027   TREE_TEMPERATE    = 0x00, 
00028   TREE_SUB_ARCTIC   = 0x0C, 
00029   TREE_RAINFOREST   = 0x14, 
00030   TREE_CACTUS       = 0x1B, 
00031   TREE_SUB_TROPICAL = 0x1C, 
00032   TREE_TOYLAND      = 0x20, 
00033   TREE_INVALID      = 0xFF, 
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_TOYLAND    - TREE_SUB_TROPICAL, 
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   TREE_GROUND_ROUGH_SNOW  = 4, 
00062 };
00063 
00064 
00077 static inline TreeType GetTreeType(TileIndex t)
00078 {
00079   assert(IsTileType(t, MP_TREES));
00080   return (TreeType)_m[t].m3;
00081 }
00082 
00092 static inline TreeGround GetTreeGround(TileIndex t)
00093 {
00094   assert(IsTileType(t, MP_TREES));
00095   return (TreeGround)GB(_m[t].m2, 6, 3);
00096 }
00097 
00117 static inline uint GetTreeDensity(TileIndex t)
00118 {
00119   assert(IsTileType(t, MP_TREES));
00120   return GB(_m[t].m2, 4, 2);
00121 }
00122 
00134 static inline void SetTreeGroundDensity(TileIndex t, TreeGround g, uint d)
00135 {
00136   assert(IsTileType(t, MP_TREES)); // XXX incomplete
00137   SB(_m[t].m2, 4, 2, d);
00138   SB(_m[t].m2, 6, 3, g);
00139 }
00140 
00152 static inline uint GetTreeCount(TileIndex t)
00153 {
00154   assert(IsTileType(t, MP_TREES));
00155   return GB(_m[t].m5, 6, 2) + 1;
00156 }
00157 
00169 static inline void AddTreeCount(TileIndex t, int c)
00170 {
00171   assert(IsTileType(t, MP_TREES)); // XXX incomplete
00172   _m[t].m5 += c << 6;
00173 }
00174 
00184 static inline uint GetTreeGrowth(TileIndex t)
00185 {
00186   assert(IsTileType(t, MP_TREES));
00187   return GB(_m[t].m5, 0, 3);
00188 }
00189 
00199 static inline void AddTreeGrowth(TileIndex t, int a)
00200 {
00201   assert(IsTileType(t, MP_TREES)); // XXX incomplete
00202   _m[t].m5 += a;
00203 }
00204 
00215 static inline void SetTreeGrowth(TileIndex t, uint g)
00216 {
00217   assert(IsTileType(t, MP_TREES)); // XXX incomplete
00218   SB(_m[t].m5, 0, 3, g);
00219 }
00220 
00229 static inline uint GetTreeCounter(TileIndex t)
00230 {
00231   assert(IsTileType(t, MP_TREES));
00232   return GB(_m[t].m2, 0, 4);
00233 }
00234 
00244 static inline void AddTreeCounter(TileIndex t, int a)
00245 {
00246   assert(IsTileType(t, MP_TREES)); // XXX incomplete
00247   _m[t].m2 += a;
00248 }
00249 
00259 static inline void SetTreeCounter(TileIndex t, uint c)
00260 {
00261   assert(IsTileType(t, MP_TREES)); // XXX incomplete
00262   SB(_m[t].m2, 0, 4, c);
00263 }
00264 
00277 static inline void MakeTree(TileIndex t, TreeType type, uint count, uint growth, TreeGround ground, uint density)
00278 {
00279   SetTileType(t, MP_TREES);
00280   SetTileOwner(t, OWNER_NONE);
00281   _m[t].m2 = ground << 6 | density << 4 | 0;
00282   _m[t].m3 = type;
00283   _m[t].m4 = 0 << 5 | 0 << 2;
00284   _m[t].m5 = count << 6 | growth;
00285   SB(_m[t].m6, 2, 4, 0);
00286   _me[t].m7 = 0;
00287 }
00288 
00289 #endif /* TREE_MAP_H */

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