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(svn r22659) -Add: [NewGRF] Support for the land slope check callback for stations.

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michi_cc
2011-07-11 16:32:35 +00:00
parent e5dd6f9227
commit d579af11e8
7 changed files with 72 additions and 8 deletions
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6
src/newgrf_commons.cpp
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@@ -413,9 +413,10 @@ uint32 GetTerrainType(TileIndex tile, TileContext context)
* @param parameter The NewGRF "encoded" offset.
* @param tile The tile to base the offset from.
* @param signed_offsets Whether the offsets are to be interpreted as signed or not.
* @param axis Axis of a railways station.
* @return The tile at the offset.
*/
TileIndex GetNearbyTile(byte parameter, TileIndex tile, bool signed_offsets)
TileIndex GetNearbyTile(byte parameter, TileIndex tile, bool signed_offsets, Axis axis)
{
int8 x = GB(parameter, 0, 4);
int8 y = GB(parameter, 4, 4);
@@ -424,7 +425,8 @@ TileIndex GetNearbyTile(byte parameter, TileIndex tile, bool signed_offsets)
if (signed_offsets && y >= 8) y -= 16;
/* Swap width and height depending on axis for railway stations */
if (HasStationTileRail(tile) && GetRailStationAxis(tile) == AXIS_Y) Swap(x, y);
if (axis == INVALID_AXIS && HasStationTileRail(tile)) axis = GetRailStationAxis(tile);
if (axis == AXIS_Y) Swap(x, y);
/* Make sure we never roam outside of the map, better wrap in that case */
return TILE_MASK(tile + TileDiffXY(x, y));