public override void Bind(ViewBase view)
 {
     base.Bind(view);
     view.BindProperty(Character.JumpStateProperty, JumpStateChanged);
     view.BindProperty(Character.MovementStateProperty, MovementStateChanged);
     view.BindCommandExecuted(Character.PickUpCoin, CoinPickedUp);
     Character.IsOnTheGroundProperty
         .DistinctUntilChanged()
         .Where(value => value)
         .Subscribe(value => Landed())
         .DisposeWith(view);
 }