Added "arrow" pointing to next mark on third person view

#story[1195]

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

@@ -3,6 +3,7 @@ package visualiser.Controllers;
 import com.interactivemesh.jfx.importer.stl.StlMeshImporter;
 import javafx.animation.AnimationTimer;
 import javafx.application.Platform;
+import javafx.beans.value.ChangeListener;
 import javafx.collections.FXCollections;
 import javafx.collections.ListChangeListener;
 import javafx.collections.ObservableList;
@@ -20,6 +21,7 @@ import javafx.scene.layout.StackPane;
 import javafx.scene.paint.Color;
 import javafx.scene.paint.Material;
 import javafx.scene.paint.PhongMaterial;
+import javafx.scene.shape.Box;
 import javafx.scene.shape.MeshView;
 import javafx.scene.shape.Shape3D;
 import javafx.scene.shape.Sphere;
@@ -79,6 +81,9 @@ public class RaceController extends Controller {
     private View3D view3D;
     private ObservableList<Subject3D> viewSubjects;
 
+    private Subject3D nextMarkArrow;
+    private ChangeListener<? super GPSCoordinate> pointToMark;
+
     /**
      * The arrow controller.
      */
@@ -110,6 +115,7 @@ public class RaceController extends Controller {
      * Ctor.
      */
     public RaceController() {
+        this.nextMarkArrow = new Annotation3D(new Box(1,3,0));
     }
 
     @Override
@@ -307,7 +313,7 @@ public class RaceController extends Controller {
             if(curr != null && visualiserRace.getVisualiserRaceState().isVisualiserBoat(curr.getSourceID())) {
                 addThirdPersonAnnotations(curr);
             } else {
-                removeThirdPersonAnnotations();
+                removeThirdPersonAnnotations(prev);
             }
         });
 
@@ -357,19 +363,35 @@ public class RaceController extends Controller {
     }
 
     private void addThirdPersonAnnotations(Subject3D subject3D) {
+        viewSubjects.add(nextMarkArrow);
+
         try {
             VisualiserBoat boat = visualiserRace.getVisualiserRaceState().getBoat(subject3D.getSourceID());
-            boat.bearingProperty().addListener((o, prev, curr) -> {
+            this.pointToMark = (o, prev, curr) -> {
                 CompoundMark target = boat.getCurrentLeg().getEndCompoundMark();
                 Bearing headingToMark = GPSCoordinate.calculateBearing(boat.getPosition(), target.getAverageGPSCoordinate());
-                System.out.println(headingToMark.degrees() - boat.getBearing().degrees());
-            });
+
+                nextMarkArrow.setY(10);
+                nextMarkArrow.setX(subject3D.getPosition().getX());
+                nextMarkArrow.setZ(subject3D.getPosition().getZ());
+                nextMarkArrow.setHeading(headingToMark.degrees());
+            };
+
+            boat.positionProperty().addListener(pointToMark);
         } catch (BoatNotFoundException e) {
             e.printStackTrace();
         }
     }
 
-    private void removeThirdPersonAnnotations() {
+    private void removeThirdPersonAnnotations(Subject3D subject3D) {
+        viewSubjects.remove(nextMarkArrow);
+
+        try {
+            VisualiserBoat boat = visualiserRace.getVisualiserRaceState().getBoat(subject3D.getSourceID());
+            boat.positionProperty().removeListener(pointToMark);
+        } catch (BoatNotFoundException e) {
+            e.printStackTrace();
+        }
     }
 
     /**

racevisionGame/src/main/java/visualiser/layout/Annotation3D.java

@@ -0,0 +1,24 @@
+package visualiser.layout;
+
+import javafx.scene.shape.Shape3D;
+
+/**
+ * Created by connortaylorbrown on 13/09/17.
+ */
+public class Annotation3D extends Subject3D {
+    /**
+     * Constructor for view subject wrapper
+     *
+     * @param mesh to be rendered
+     */
+    public Annotation3D(Shape3D mesh) {
+        super(mesh, 0);
+    }
+
+    /**
+     * Prevent rescaling of this subject
+     * @param scale ignored
+     */
+    @Override
+    public void setScale(double scale) {}
+}