finished ex. 13 + cleanup

Projekte/jme-common/src/main/java/pp/JmeUtil.java

@@ -5,13 +5,14 @@
 import com.jme3.asset.AssetNotFoundException;
 import com.jme3.audio.AudioData;
 import com.jme3.audio.AudioNode;
+import com.jme3.math.Vector3f;
 import pp.util.Util;
 
 import java.lang.System.Logger;
 import java.lang.System.Logger.Level;
 
 public class JmeUtil {
-    private JmeUtil(){ /* Do not initialize */ }
+    private JmeUtil() { /* Do not initialize */ }
 
     private static final Logger LOGGER = System.getLogger(Util.class.getName());
 
@@ -34,4 +35,8 @@ public static AudioNode loadSound(Application app, String name) {
         }
         return null;
     }
+
+    public static Vector3f mapToWorldCord(float x, float y) {
+        return new Vector3f(y + 0.5f, 0, x + 0.5f);
+    }
 }