# tunnel_map.h

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    00001 /* $Id: tunnel_map.h 23167 2011-11-08 19:44:41Z 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 TUNNEL_MAP_H
    00013 #define TUNNEL_MAP_H
    00014
    00015 #include "road_map.h"
    00016
    00017
    00024 static inline bool IsTunnel(TileIndex t)
    00025 {
    00026   assert(IsTileType(t, MP_TUNNELBRIDGE));
    00027   return !HasBit(_m[t].m5, 7);
    00028 }
    00029
    00035 static inline bool IsTunnelTile(TileIndex t)
    00036 {
    00037   return IsTileType(t, MP_TUNNELBRIDGE) && IsTunnel(t);
    00038 }
    00039
    00040 TileIndex GetOtherTunnelEnd(TileIndex);
    00041 bool IsTunnelInWay(TileIndex, int z);
    00042 bool IsTunnelInWayDir(TileIndex tile, int z, DiagDirection dir);
    00043
    00051 static inline void MakeRoadTunnel(TileIndex t, Owner o, DiagDirection d, RoadTypes r)
    00052 {
    00053   SetTileType(t, MP_TUNNELBRIDGE);
    00054   SetTileOwner(t, o);
    00055   _m[t].m2 = 0;
    00056   _m[t].m3 = 0;
    00057   _m[t].m4 = 0;
    00058   _m[t].m5 = TRANSPORT_ROAD << 2 | d;
    00059   SB(_m[t].m6, 2, 4, 0);
    00060   _me[t].m7 = 0;
    00061   SetRoadOwner(t, ROADTYPE_ROAD, o);
    00062   if (o != OWNER_TOWN) SetRoadOwner(t, ROADTYPE_TRAM, o);
    00063   SetRoadTypes(t, r);
    00064 }
    00065
    00073 static inline void MakeRailTunnel(TileIndex t, Owner o, DiagDirection d, RailType r)
    00074 {
    00075   SetTileType(t, MP_TUNNELBRIDGE);
    00076   SetTileOwner(t, o);
    00077   _m[t].m2 = 0;
    00078   _m[t].m3 = r;
    00079   _m[t].m4 = 0;
    00080   _m[t].m5 = TRANSPORT_RAIL << 2 | d;
    00081   SB(_m[t].m6, 2, 4, 0);
    00082   _me[t].m7 = 0;
    00083 }
    00084
    00085 #endif /* TUNNEL_MAP_H */