54 lines
1.3 KiB
C
54 lines
1.3 KiB
C
/* $Id$ */
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#include "stdafx.h"
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#include "openttd.h"
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#include "functions.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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RoadBits GetAnyRoadBits(TileIndex tile)
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{
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switch (GetTileType(tile)) {
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case MP_STREET:
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switch (GetRoadType(tile)) {
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default:
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case ROAD_NORMAL: return GetRoadBits(tile);
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case ROAD_CROSSING: return GetCrossingRoadBits(tile);
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case ROAD_DEPOT: return DiagDirToRoadBits(GB(_m[tile].m5, 0, 2));
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}
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case MP_STATION:
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if (!IsRoadStationTile(tile)) return 0;
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return DiagDirToRoadBits(GetRoadStationDir(tile));
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case MP_TUNNELBRIDGE:
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if (_m[tile].m5 & 0x80) {
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// bridge
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if (_m[tile].m5 & 0x40) {
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// middle part
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if ((_m[tile].m5 & 0x38) != 0x28) return 0; // no road under bridge
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return _m[tile].m5 & 1 ? ROAD_X : ROAD_Y;
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} else {
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// ending
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if (GB(_m[tile].m5, 1, 2) != TRANSPORT_ROAD) return 0; // not a road bridge
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return _m[tile].m5 & 1 ? ROAD_Y : ROAD_X;
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}
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} else {
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// tunnel
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if (GetTunnelTransportType(tile) != TRANSPORT_ROAD) return 0;
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return DiagDirToRoadBits(ReverseDiagDir(GetTunnelDirection(tile)));
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}
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default: return 0;
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}
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}
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TrackBits GetAnyRoadTrackBits(TileIndex tile)
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{
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uint32 r = GetTileTrackStatus(tile, TRANSPORT_ROAD);
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return (byte)(r | (r >> 8));
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}
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