diff options
Diffstat (limited to 'src/newgrf_commons.cpp')
| -rw-r--r-- | src/newgrf_commons.cpp | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/src/newgrf_commons.cpp b/src/newgrf_commons.cpp index 5291bbac9..9e796aa60 100644 --- a/src/newgrf_commons.cpp +++ b/src/newgrf_commons.cpp @@ -165,3 +165,13 @@ uint32 GetTerrainType(TileIndex tile) } } +TileIndex GetNearbyTile(byte parameter, TileIndex tile) +{ + int8 x = GB(parameter, 0, 4); + int8 y = GB(parameter, 4, 4); + + if (x >= 8) x -= 16; + if (y >= 8) y -= 16; + + return tile + TileDiffXY(x, y); +} |