Changed View3D add-remove interface to an ObservableList

#story[1196]

racevisionGame/src/main/java/visualiser/Controllers/HostController.java

@@ -1,6 +1,8 @@
 package visualiser.Controllers;
 
 import com.interactivemesh.jfx.importer.stl.StlMeshImporter;
+import javafx.collections.FXCollections;
+import javafx.collections.ObservableList;
 import javafx.fxml.FXML;
 import javafx.scene.control.Alert;
 import javafx.scene.control.ButtonType;
@@ -11,6 +13,7 @@ import javafx.scene.layout.GridPane;
 import javafx.scene.shape.Box;
 import javafx.scene.shape.Mesh;
 import javafx.scene.shape.MeshView;
+import javafx.scene.shape.Shape3D;
 import javafx.scene.transform.Rotate;
 import mock.app.Event;
 import mock.exceptions.EventConstructionException;
@@ -60,7 +63,10 @@ public class HostController extends Controller {
 
     @Override
     public void initialize(URL location, ResourceBundle resources) {
+        ObservableList<Shape3D> shapes = FXCollections.observableArrayList();
+
         view3D = new View3D();
+        view3D.setItems(shapes);
         playerContainer.add(view3D, 0,0);
 
         URL asset = HostController.class.getClassLoader().getResource("assets/V1.2 Complete Boat.stl");
@@ -68,10 +74,9 @@ public class HostController extends Controller {
         StlMeshImporter importer = new StlMeshImporter();
         importer.read(asset);
         MeshView mesh = new MeshView(importer.getImport());
-
         mesh.getTransforms().add(new Rotate(-90, Rotate.X_AXIS));
+        shapes.add(mesh);
 
-        view3D.addShape(mesh);
         view3D.setPivot(mesh);
         view3D.setDistance(50);
         view3D.setYaw(45);