Blend function installed

src/engine/objects/Zone.java

@@ -229,13 +229,7 @@ public class Zone extends AbstractGameObject {
         }
 
         this.setBounds();
-
-        try {
-            this.worldAltitude = ZoneManager.caclulateWorldAltitude(this);
-        } catch (Exception e) {
-            throw new RuntimeException(e);
-        }
-
+        this.worldAltitude = ZoneManager.caclulateWorldAltitude(this);
         setSeaLevel();
     }