OpenTTD-patches/road_map.c
peter1138 0ed4582d75 (svn r5798) - Fix [r5062]: When expanding a town, the test to check if a tile is a
road depot also excluded all non-road tile types (i.e. bridges/tunnels 
with road.) Thanks to Graphite for finding this.
2006-08-07 06:21:59 +00:00

65 lines
1.5 KiB
C

/* $Id$ */
#include "stdafx.h"
#include "openttd.h"
#include "bridge_map.h"
#include "functions.h"
#include "road_map.h"
#include "station.h"
#include "tunnel_map.h"
#include "station_map.h"
#include "depot.h"
RoadBits GetAnyRoadBits(TileIndex tile)
{
switch (GetTileType(tile)) {
case MP_STREET:
switch (GetRoadTileType(tile)) {
default:
case ROAD_TILE_NORMAL: return GetRoadBits(tile);
case ROAD_TILE_CROSSING: return GetCrossingRoadBits(tile);
case ROAD_TILE_DEPOT: return DiagDirToRoadBits(GetRoadDepotDirection(tile));
}
case MP_STATION:
if (!IsRoadStopTile(tile)) return 0;
return DiagDirToRoadBits(GetRoadStopDir(tile));
case MP_TUNNELBRIDGE:
if (IsBridge(tile)) {
if (IsBridgeMiddle(tile)) {
if (!IsTransportUnderBridge(tile) ||
GetBridgeTransportType(tile) != TRANSPORT_ROAD) {
return 0;
}
return GetRoadBitsUnderBridge(tile);
} else {
// ending
if (GetBridgeTransportType(tile) != TRANSPORT_ROAD) return 0;
return DiagDirToRoadBits(ReverseDiagDir(GetBridgeRampDirection(tile)));
}
} else {
// tunnel
if (GetTunnelTransportType(tile) != TRANSPORT_ROAD) return 0;
return DiagDirToRoadBits(ReverseDiagDir(GetTunnelDirection(tile)));
}
default: return 0;
}
}
TrackBits GetAnyRoadTrackBits(TileIndex tile)
{
uint32 r;
// Don't allow building through road depot tiles.
if (IsTileType(tile, MP_STREET) && IsTileDepotType(tile, TRANSPORT_ROAD)) {
return 0;
}
r = GetTileTrackStatus(tile, TRANSPORT_ROAD);
return (byte)(r | (r >> 8));
}