Error trap

src/engine/objects/Zone.java

@@ -237,7 +237,12 @@ public class Zone extends AbstractGameObject {
         }
 
         this.setBounds();
+
+        try {
             this.worldAltitude = ZoneManager.caclulateWorldAltitude(this);
+        } catch (Exception e) {
+            throw new RuntimeException(e);
+        }
 
         setSeaLevel();
     }