tron@3146: /* $Id$ */
tron@3146: 
tron@3146: #include "stdafx.h"
tron@3146: #include "openttd.h"
tron@3196: #include "bridge_map.h"
tron@3150: #include "functions.h"
tron@3146: #include "road_map.h"
tron@3146: #include "station.h"
tron@3154: #include "tunnel_map.h"
celestar@3404: #include "station_map.h"
KUDr@3927: #include "depot.h"
tron@3146: 
tron@3146: 
tron@3146: RoadBits GetAnyRoadBits(TileIndex tile)
tron@3146: {
tron@3146: 	switch (GetTileType(tile)) {
tron@3146: 		case MP_STREET:
rubidium@3793: 			switch (GetRoadTileType(tile)) {
tron@3146: 				default:
rubidium@3793: 				case ROAD_TILE_NORMAL:   return GetRoadBits(tile);
rubidium@3793: 				case ROAD_TILE_CROSSING: return GetCrossingRoadBits(tile);
rubidium@3793: 				case ROAD_TILE_DEPOT:    return DiagDirToRoadBits(GetRoadDepotDirection(tile));
tron@3146: 			}
tron@3146: 
tron@3146: 		case MP_STATION:
celestar@3404: 			if (!IsRoadStopTile(tile)) return 0;
celestar@3404: 			return DiagDirToRoadBits(GetRoadStopDir(tile));
tron@3146: 
tron@3146: 		case MP_TUNNELBRIDGE:
tron@3977: 			if (IsBridge(tile)) {
tron@3977: 				if (IsBridgeMiddle(tile)) {
tron@3977: 					if (!IsTransportUnderBridge(tile) ||
glx@4777: 							GetTransportTypeUnderBridge(tile) != TRANSPORT_ROAD) {
tron@3977: 						return 0;
tron@3977: 					}
tron@3977: 					return GetRoadBitsUnderBridge(tile);
tron@3977: 				} else {
tron@3977: 					// ending
tron@3977: 					if (GetBridgeTransportType(tile) != TRANSPORT_ROAD) return 0;
tron@3977: 					return DiagDirToRoadBits(ReverseDiagDir(GetBridgeRampDirection(tile)));
tron@3977: 				}
tron@3977: 			} else {
tron@3977: 				// tunnel
tron@3154: 				if (GetTunnelTransportType(tile) != TRANSPORT_ROAD) return 0;
tron@3154: 				return DiagDirToRoadBits(ReverseDiagDir(GetTunnelDirection(tile)));
tron@3146: 			}
tron@3146: 
tron@3146: 		default: return 0;
tron@3146: 	}
tron@3146: }
tron@3150: 
tron@3150: 
tron@3150: TrackBits GetAnyRoadTrackBits(TileIndex tile)
tron@3150: {
peter1138@4233: 	uint32 r;
peter1138@4233: 
KUDr@4615: 	// Don't allow local authorities to build roads through road depots or road stops.
KUDr@4615: 	if ((IsTileType(tile, MP_STREET) && IsTileDepotType(tile, TRANSPORT_ROAD)) || IsTileType(tile, MP_STATION)) {
peter1138@4233: 		return 0;
KUDr@3927: 	}
peter1138@4233: 
peter1138@4233: 	r = GetTileTrackStatus(tile, TRANSPORT_ROAD);
peter1138@4233: 	return (byte)(r | (r >> 8));
tron@3150: }