tunnel_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 TUNNEL_MAP_H
00013 #define TUNNEL_MAP_H
00014 
00015 #include "direction_func.h"
00016 #include "rail_type.h"
00017 #include "road_type.h"
00018 #include "transport_type.h"
00019 #include "road_map.h"
00020 
00021 
00028 static inline bool IsTunnel(TileIndex t)
00029 {
00030   assert(IsTileType(t, MP_TUNNELBRIDGE));
00031   return !HasBit(_m[t].m5, 7);
00032 }
00033 
00039 static inline bool IsTunnelTile(TileIndex t)
00040 {
00041   return IsTileType(t, MP_TUNNELBRIDGE) && IsTunnel(t);
00042 }
00043 
00044 TileIndex GetOtherTunnelEnd(TileIndex);
00045 bool IsTunnelInWay(TileIndex, uint z);
00046 bool IsTunnelInWayDir(TileIndex tile, uint z, DiagDirection dir);
00047 
00055 static inline void MakeRoadTunnel(TileIndex t, Owner o, DiagDirection d, RoadTypes r)
00056 {
00057   SetTileType(t, MP_TUNNELBRIDGE);
00058   SetTileOwner(t, o);
00059   _m[t].m2 = 0;
00060   _m[t].m3 = 0;
00061   _m[t].m4 = 0;
00062   _m[t].m5 = TRANSPORT_ROAD << 2 | d;
00063   SB(_m[t].m6, 2, 4, 0);
00064   _me[t].m7 = 0;
00065   SetRoadOwner(t, ROADTYPE_ROAD, o);
00066   if (o != OWNER_TOWN) SetRoadOwner(t, ROADTYPE_TRAM, o);
00067   SetRoadTypes(t, r);
00068 }
00069 
00077 static inline void MakeRailTunnel(TileIndex t, Owner o, DiagDirection d, RailType r)
00078 {
00079   SetTileType(t, MP_TUNNELBRIDGE);
00080   SetTileOwner(t, o);
00081   _m[t].m2 = 0;
00082   _m[t].m3 = r;
00083   _m[t].m4 = 0;
00084   _m[t].m5 = TRANSPORT_RAIL << 2 | d;
00085   SB(_m[t].m6, 2, 4, 0);
00086   _me[t].m7 = 0;
00087 }
00088 
00089 #endif /* TUNNEL_MAP_H */

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