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/* $Id$ */

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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 "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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#include "station_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(GetRoadDepotDirection(tile));

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			}

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		case MP_STATION:

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			if (!IsRoadStopTile(tile)) return 0;

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			return DiagDirToRoadBits(GetRoadStopDir(tile));

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		case MP_TUNNELBRIDGE:

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			if (IsBridge(tile)) {

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				if (IsBridgeMiddle(tile)) {

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					if (!IsTransportUnderBridge(tile) ||

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							GetBridgeTransportType(tile) != TRANSPORT_ROAD) {

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						return 0;

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					}

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					return GetRoadBitsUnderBridge(tile);

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				} else {

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					// ending

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					if (GetBridgeTransportType(tile) != TRANSPORT_ROAD) return 0;

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					return DiagDirToRoadBits(ReverseDiagDir(GetBridgeRampDirection(tile)));

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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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}