cpp/openttd-patchpack/source Changeset - r21024:19cdb93700c9

Changeset - r21024:19cdb93700c9

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rubidium - 11 years ago 2013-11-25 13:13:35
rubidium@openttd.org

(svn r26104) -Fix: do not attempt to do stuff with an invalid direction, especially using it as index into a table

1 file changed with 1 insertions and 1 deletions:

src/town_cmd.cpp

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src/town_cmd.cpp

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@@ @@ -1317,7 +1317,7 @@ static int GrowTownAtRoad(Town *t, TileI @@
 		/* Exclude the source position from the bitmask
 		 * and return if no more road blocks available */
 		cur_rb &= ~DiagDirToRoadBits(ReverseDiagDir(target_dir));
+		if (IsValidDiagDirection(target_dir)) cur_rb &= ~DiagDirToRoadBits(ReverseDiagDir(target_dir));
 		if (cur_rb == ROAD_NONE) {
 			return _grow_town_result;
+		}

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