added 'Shell' and 'ShellControl' and editet the two visitors 'Visitor' and 'VoidVisitor'

Projekte/battleship/client/src/main/java/pp/battleship/client/gui/ShellControl.java

@@ -0,0 +1,41 @@
+package pp.battleship.client.gui;
+
+import com.jme3.renderer.RenderManager;
+import com.jme3.renderer.ViewPort;
+import com.jme3.scene.Spatial;
+import com.jme3.scene.control.AbstractControl;
+import pp.battleship.model.Shell;
+import pp.battleship.model.ShipMap;
+
+public class ShellControl extends AbstractControl {
+
+    private Shell shell;
+    private ShipMap map;
+
+    private static final Float HEIGHT = 0f;
+
+    public ShellControl(Shell shell, ShipMap map){
+        this.shell=shell;
+        this.map=map;
+    }
+
+    @Override
+    protected void controlUpdate(float tpf) {
+        if (spatial == null) return;
+        if(spatial.getLocalTranslation().getY()<=HEIGHT){
+            spatial.getParent().detachChild(spatial);
+        }
+        else{
+            spatial.move(0,-0.5f*tpf,0);
+        }
+    }
+
+    @Override
+    protected void controlRender(RenderManager rm, ViewPort vp) {
+
+    }
+
+    public Shell getShell(){
+        return shell;
+    }
+}

Projekte/battleship/model/src/main/java/pp/battleship/model/Shell.java

@@ -0,0 +1,31 @@
+package pp.battleship.model;
+
+public class Shell implements Item {
+
+    private IntPoint target;
+
+    public Shell(IntPoint target){
+        this.target=target;
+    }
+
+
+
+
+
+
+
+
+    @Override
+    public <T> T accept(Visitor<T> visitor) {
+        return visitor.visit(this);
+    }
+
+    @Override
+    public void accept(VoidVisitor visitor) {
+        visitor.visit(this);
+    }
+
+    public IntPoint getTarget(){
+        return target;
+    }
+}

Projekte/battleship/model/src/main/java/pp/battleship/model/Visitor.java

@@ -28,4 +28,6 @@ public interface Visitor<T> {
      * @return the result of visiting the Battleship element
      */
     T visit(Battleship ship);
+
+    T visit(Shell shell);
 }

Projekte/battleship/model/src/main/java/pp/battleship/model/VoidVisitor.java

@@ -25,4 +25,6 @@ public interface VoidVisitor {
      * @param ship the Battleship element to visit
      */
     void visit(Battleship ship);
+
+    void visit(Shell shell);
 }