Boats now reverse smoothly when colliding

- Collision objects specify which boat is colliding
- RaceLogic sets up an observable CollisionCommand when collision bubbles up
- Boats now selectively identify observers of collision

#story[1196]

racevisionGame/src/main/java/mock/model/RaceLogic.java

@@ -2,6 +2,7 @@ package mock.model;
 
 import javafx.animation.AnimationTimer;
 import mock.model.collider.Collision;
+import mock.model.commandFactory.CollisionCommand;
 import mock.model.commandFactory.Command;
 import mock.model.commandFactory.CompositeCommand;
 import mock.model.commandFactory.CommandFactory;
@@ -222,11 +223,9 @@ public class RaceLogic implements RunnableWithFramePeriod, Observer {
 
     @Override
     public void update(Observable o, Object arg) {
-        Collision e = (Collision)arg;
-
-//        if(e.getBearing().degrees() == 0) System.out.println("Ahead");
-//        else if(e.getBearing().degrees() < 90) System.out.println("Starboard");
-//        else if(e.getBearing().degrees() > 270) System.out.println("Port");
-//        else System.out.println("Behind");
+        if(arg instanceof Collision) {
+            Collision collision = (Collision)arg;
+            commands.addCommand(new CollisionCommand(race, (MockBoat)collision.getBoat()));
+        }
     }
 }