changed facade

OGP1718-Worms/src/worms/facade/Facade.java

@@ -53,9 +53,13 @@ public class Facade implements IFacade {
      */
     @Override
     public void jump(Worm worm) throws ModelException {
-
+        try {
             worm.jump();
         }
+        catch(IllegalStateException e) {
+            throw new ModelException(e);
+        }
+    }
 
     /**
      * Returns the total amount of time (in seconds) that a jump of the given worm