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/* $Id$ */
/** @file road_map.cpp Complex road accessors. */
#include "stdafx.h"
#include "station_map.h"
#include "tunnelbridge_map.h"
RoadBits GetAnyRoadBits(TileIndex tile, RoadType rt, bool straight_tunnel_bridge_entrance)
{
if (!HasTileRoadType(tile, rt)) return ROAD_NONE;
switch (GetTileType(tile)) {
case MP_ROAD:
switch (GetRoadTileType(tile)) {
default:
case ROAD_TILE_NORMAL: return GetRoadBits(tile, rt);
case ROAD_TILE_CROSSING: return GetCrossingRoadBits(tile);
case ROAD_TILE_DEPOT: return DiagDirToRoadBits(GetRoadDepotDirection(tile));
}
case MP_STATION:
if (!IsRoadStopTile(tile)) return ROAD_NONE;
if (IsDriveThroughStopTile(tile)) return (GetRoadStopDir(tile) == DIAGDIR_NE) ? ROAD_X : ROAD_Y;
return DiagDirToRoadBits(GetRoadStopDir(tile));
case MP_TUNNELBRIDGE:
if (GetTunnelBridgeTransportType(tile) != TRANSPORT_ROAD) return ROAD_NONE;
return straight_tunnel_bridge_entrance ?
AxisToRoadBits(DiagDirToAxis(GetTunnelBridgeDirection(tile))) :
DiagDirToRoadBits(ReverseDiagDir(GetTunnelBridgeDirection(tile)));
default: return ROAD_NONE;
}
}
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