diff --git a/src/micropolisj/engine/TileConstants.java b/src/micropolisj/engine/TileConstants.java index 55f5974..e5c5c01 100644 --- a/src/micropolisj/engine/TileConstants.java +++ b/src/micropolisj/engine/TileConstants.java @@ -381,7 +381,7 @@ public class TileConstants public static boolean isDozeable(int tile) { - return (tile & BULLBIT) != 0; + return tile >= 0 && (tile & BULLBIT) != 0; } static boolean isFloodable(int tile)