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authorbelugas <belugas@openttd.org>2007-06-08 17:54:18 +0000
committerbelugas <belugas@openttd.org>2007-06-08 17:54:18 +0000
commite8c6d571508fbb49636b7fc1b70b58813d2caaa3 (patch)
treecd5fc9ecbc88d18cd0dec7eeae1bc0713a76e991 /src/newgrf_commons.cpp
parent6983d0b547ce9248a658ffa5d6c76c860d08a72e (diff)
downloadopenttd-e8c6d571508fbb49636b7fc1b70b58813d2caaa3.tar.xz
(svn r10066) -Codechange: Expose function GetNearbyTile by moving it to newgrf_commons.[cpp|h]. Will be used by industries in a few.
Diffstat (limited to 'src/newgrf_commons.cpp')
-rw-r--r--src/newgrf_commons.cpp10
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);
+}