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57 lines
1.6 KiB
C++
57 lines
1.6 KiB
C++
/* $Id$ */
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/** @file road_map.cpp */
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#include "stdafx.h"
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#include "openttd.h"
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#include "bridge_map.h"
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#include "tile_cmd.h"
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#include "road_map.h"
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#include "station.h"
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#include "tunnel_map.h"
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#include "station_map.h"
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#include "depot.h"
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#include "tunnelbridge_map.h"
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RoadBits GetAnyRoadBits(TileIndex tile, RoadType rt)
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{
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if (!HasBit(GetRoadTypes(tile), rt)) return ROAD_NONE;
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switch (GetTileType(tile)) {
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case MP_ROAD:
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switch (GetRoadTileType(tile)) {
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default:
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case ROAD_TILE_NORMAL: return GetRoadBits(tile, rt);
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case ROAD_TILE_CROSSING: return GetCrossingRoadBits(tile);
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case ROAD_TILE_DEPOT: return DiagDirToRoadBits(GetRoadDepotDirection(tile));
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}
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case MP_STATION:
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if (!IsRoadStopTile(tile)) return ROAD_NONE;
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if (IsDriveThroughStopTile(tile)) return (GetRoadStopDir(tile) == DIAGDIR_NE) ? ROAD_X : ROAD_Y;
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return DiagDirToRoadBits(GetRoadStopDir(tile));
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case MP_TUNNELBRIDGE:
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if (GetTunnelBridgeTransportType(tile) != TRANSPORT_ROAD) return ROAD_NONE;
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return DiagDirToRoadBits(ReverseDiagDir(GetTunnelBridgeDirection(tile)));
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default: return ROAD_NONE;
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}
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}
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TrackBits GetAnyRoadTrackBits(TileIndex tile, RoadType rt)
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{
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uint32 r;
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/* Don't allow local authorities to build roads through road depots or road stops. */
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if ((IsTileType(tile, MP_ROAD) && IsTileDepotType(tile, TRANSPORT_ROAD)) || (IsTileType(tile, MP_STATION) && !IsDriveThroughStopTile(tile)) || !HasBit(GetRoadTypes(tile), rt)) {
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return TRACK_BIT_NONE;
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}
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r = GetTileTrackStatus(tile, TRANSPORT_ROAD, RoadTypeToRoadTypes(rt));
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return (TrackBits)(byte)(r | (r >> 8));
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}
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