如何在JavaFX的intersects方法中添加侦听器？

Question

我正在尝试为我的程序设计类制作“类似蛙跳的游戏”，但似乎无法弄清如何检测碰撞。 我找到了ImageView.intersects方法，但该方法仅在我首次运行该程序时有效，并且在事情开始移动时不会更新。 我也看过BooleanProperty但没有成功

public class DisplayPane extends Pane {
    public ImageView vehicle;
    private final Image lamboImage = new Image("File:Lambo.jpg");
    private final Image skiImage = new Image("File:ski.jpg");

    private Rectangle firstObstacle;
    private TranslateTransition firstTransition;


    public DisplayPane() {
vehicle = new ImageView(lamboImage);
        vehicle.setPreserveRatio(true);
        vehicle.setFitWidth(150);
        vehicle.setY(400);
        getChildren().add(vehicle);
        vehicle.setFocusTraversable(true);
        vehicle.setOnKeyTyped(this::ProcessKeyType);

        firstObstacle = new Rectangle(200, 0, 30, 30);
        firstObstacle.setFill(Color.RED);
        firstTransition = new TranslateTransition(Duration.seconds(2), firstObstacle);
        firstTransition.setByY((800));
        firstTransition.setCycleCount(Animation.INDEFINITE);
        firstTransition.play();

        getChildren().add(firstObstacle);
        if (vehicle.intersects(firstObstacle.getBoundsInLocal())) {
            System.out.println("Gsme over");
        }
    }