00001 /* $Id: road_map.cpp 12390 2008-03-22 10:56:08Z rubidium $ */ 00002 00005 #include "stdafx.h" 00006 #include "openttd.h" 00007 #include "bridge_map.h" 00008 #include "tile_cmd.h" 00009 #include "road_map.h" 00010 #include "station.h" 00011 #include "tunnel_map.h" 00012 #include "station_map.h" 00013 #include "depot.h" 00014 #include "tunnelbridge_map.h" 00015 00016 00017 RoadBits GetAnyRoadBits(TileIndex tile, RoadType rt, bool straight_tunnel_bridge_entrance) 00018 { 00019 if (!HasTileRoadType(tile, rt)) return ROAD_NONE; 00020 00021 switch (GetTileType(tile)) { 00022 case MP_ROAD: 00023 switch (GetRoadTileType(tile)) { 00024 default: 00025 case ROAD_TILE_NORMAL: return GetRoadBits(tile, rt); 00026 case ROAD_TILE_CROSSING: return GetCrossingRoadBits(tile); 00027 case ROAD_TILE_DEPOT: return DiagDirToRoadBits(GetRoadDepotDirection(tile)); 00028 } 00029 00030 case MP_STATION: 00031 if (!IsRoadStopTile(tile)) return ROAD_NONE; 00032 if (IsDriveThroughStopTile(tile)) return (GetRoadStopDir(tile) == DIAGDIR_NE) ? ROAD_X : ROAD_Y; 00033 return DiagDirToRoadBits(GetRoadStopDir(tile)); 00034 00035 case MP_TUNNELBRIDGE: 00036 if (GetTunnelBridgeTransportType(tile) != TRANSPORT_ROAD) return ROAD_NONE; 00037 return straight_tunnel_bridge_entrance ? 00038 AxisToRoadBits(DiagDirToAxis(GetTunnelBridgeDirection(tile))) : 00039 DiagDirToRoadBits(ReverseDiagDir(GetTunnelBridgeDirection(tile))); 00040 00041 default: return ROAD_NONE; 00042 } 00043 } 00044 00045 00046 TrackBits GetAnyRoadTrackBits(TileIndex tile, RoadType rt) 00047 { 00048 /* Don't allow local authorities to build roads through road depots or road stops. */ 00049 if (IsRoadDepotTile(tile) || (IsTileType(tile, MP_STATION) && !IsDriveThroughStopTile(tile)) || !HasTileRoadType(tile, rt)) { 00050 return TRACK_BIT_NONE; 00051 } 00052 00053 return TrackStatusToTrackBits(GetTileTrackStatus(tile, TRANSPORT_ROAD, RoadTypeToRoadTypes(rt))); 00054 }