Added tracking for angle between third person boat and next mark

#story[1195]

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

@@ -27,9 +27,8 @@ import javafx.scene.transform.Translate;
 import javafx.util.Callback;
 import network.Messages.Enums.RaceStatusEnum;
 import shared.dataInput.RaceDataSource;
-import shared.model.CompoundMark;
-import shared.model.Leg;
-import shared.model.Mark;
+import shared.exceptions.BoatNotFoundException;
+import shared.model.*;
 import visualiser.app.App;
 import visualiser.enums.TutorialState;
 import visualiser.gameController.ControllerClient;
@@ -304,6 +303,14 @@ public class RaceController extends Controller {
         // Fix initial bird's-eye position
         view3D.updatePivot(new Translate(250, 0, 210));
 
+        view3D.targetProperty().addListener((o, prev, curr)-> {
+            if(curr != null && visualiserRace.getVisualiserRaceState().isVisualiserBoat(curr.getSourceID())) {
+                addThirdPersonAnnotations(curr);
+            } else {
+                removeThirdPersonAnnotations();
+            }
+        });
+
         // Bind zooming to scrolling
         view3D.setOnScroll(e -> {
             view3D.updateDistance(e.getDeltaY());
@@ -349,6 +356,22 @@ public class RaceController extends Controller {
         });
     }
 
+    private void addThirdPersonAnnotations(Subject3D subject3D) {
+        try {
+            VisualiserBoat boat = visualiserRace.getVisualiserRaceState().getBoat(subject3D.getSourceID());
+            boat.bearingProperty().addListener((o, prev, curr) -> {
+                CompoundMark target = boat.getCurrentLeg().getEndCompoundMark();
+                Bearing headingToMark = GPSCoordinate.calculateBearing(boat.getPosition(), target.getAverageGPSCoordinate());
+                System.out.println(headingToMark.degrees() - boat.getBearing().degrees());
+            });
+        } catch (BoatNotFoundException e) {
+            e.printStackTrace();
+        }
+    }
+
+    private void removeThirdPersonAnnotations() {
+    }
+
     /**
      * Swap the colour of the next mark to pass with the last mark passed
      * @param leg boat has started on

racevisionGame/src/main/java/visualiser/layout/View3D.java

@@ -1,5 +1,7 @@
 package visualiser.layout;
 
+import javafx.beans.property.ObjectProperty;
+import javafx.beans.property.SimpleObjectProperty;
 import javafx.beans.value.ChangeListener;
 import javafx.collections.ListChangeListener;
 import javafx.collections.ObservableList;
@@ -39,7 +41,7 @@ public class View3D extends Pane {
     /**
      * Subject tracked by camera
      */
-    private Subject3D target;
+    private ObjectProperty<Subject3D> target;
     /**
      * Rendering container for shapes
      */
@@ -101,7 +103,7 @@ public class View3D extends Pane {
         this.world = new Group();
         this.shapeMap = new HashMap<>();
         this.sourceMap = new HashMap<>();
-        this.target = null;
+        this.target = new SimpleObjectProperty<>(null);
         this.scene = new SubScene(world, 300, 300);
 
         scene.widthProperty().bind(this.widthProperty());
@@ -184,6 +186,10 @@ public class View3D extends Pane {
         });
     }
 
+    public ObjectProperty<Subject3D> targetProperty() {
+        return target;
+    }
+
     /**
      * Configures camera to third person view
      */
@@ -212,11 +218,12 @@ public class View3D extends Pane {
      * Stop camera from following the last selected subject
      */
     private void untrackSubject() {
-        if(target != null) {
-            target.getPosition().xProperty().removeListener(pivotX);
-            target.getPosition().yProperty().removeListener(pivotY);
-            target.getPosition().zProperty().removeListener(pivotZ);
-            target.getHeading().angleProperty().removeListener(pivotHeading);
+        if(target.get() != null) {
+            target.get().getPosition().xProperty().removeListener(pivotX);
+            target.get().getPosition().yProperty().removeListener(pivotY);
+            target.get().getPosition().zProperty().removeListener(pivotZ);
+            target.get().getHeading().angleProperty().removeListener(pivotHeading);
+            target.setValue(null);
         }
     }
 
@@ -225,15 +232,15 @@ public class View3D extends Pane {
      * @param subject to track
      */
     private void trackSubject(Subject3D subject) {
-        target = subject;
+        target.set(subject);
 
-        updatePivot(target.getPosition());
-        setYaw(target.getHeading().getAngle());
+        updatePivot(target.get().getPosition());
+        setYaw(target.get().getHeading().getAngle());
 
-        target.getPosition().xProperty().addListener(pivotX);
-        target.getPosition().yProperty().addListener(pivotY);
-        target.getPosition().zProperty().addListener(pivotZ);
-        target.getHeading().angleProperty().addListener(pivotHeading);
+        target.get().getPosition().xProperty().addListener(pivotX);
+        target.get().getPosition().yProperty().addListener(pivotY);
+        target.get().getPosition().zProperty().addListener(pivotZ);
+        target.get().getHeading().angleProperty().addListener(pivotHeading);
     }
 
     public void setNearClip(double nearClip) {