JavaFX - 为什么分数没有增加？

Question

我刚刚添加了动画部分，现在每当我点击鸭子时它对分数没有任何影响，但是当我注释掉动画代码并且鸭子保持静止时，它会增加。

Full Code

动画:

KeyValue start = new KeyValue(duck.translateXProperty(), 10);
KeyValue end = new KeyValue(duck.translateXProperty(), 400);
KeyFrame startF = new KeyFrame(Duration.ZERO, start);
KeyFrame endF = new KeyFrame(Duration.seconds(10), end);
Timeline tl = new Timeline(startF, endF);
tl.setCycleCount(Timeline.INDEFINITE);
tl.setAutoReverse(true);
tl.play();

点击事件处理器:

scene.setOnMouseClicked(event -> {
        if (duck.contains(event.getX(), event.getY())){
            //increment score
            incrementScore();
            scoreDisplay.setText(""+score+"00");
        }
    });

Answer 1

根据您在问题和评论中所说的内容:

when I comment out the animation code and the duck stays still, it increments just fine

Whenever I click the ducks initial position, it increments the score

我猜你的 ImageView(duck)的边界框没有更新。

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From the ImageView docs :

This variable can be used to alter the location of a node without disturbing its layoutBounds, which makes it useful for animating a node's location.

这意味着图像本身在移动，duck 仍被认为处于其初始位置，因此 contains() 方法将不起作用。您必须找到另一种计算点击次数的方法

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也许您可以使用 getTranslateX() contains() 的属性，它似乎会从几何鸭子中获取视觉鸭子的当前偏移量:

scene.setOnMouseClicked(event -> {
    double rawMouseX = event.getX();
    double rawMouseY = event.getY();

    double normalizedMouseX = rawMouseX - duck.getTranslateX();
    double normalizedMouseY = rawMouseY - duck.getTranslateY();

    if (duck.contains(normalizedMouseX, normalizedMouseY)){
        //increment score
        incrementScore();
        scoreDisplay.setText(""+score+"00");
    }
});

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免责声明:我没有使用 JavaFX 的经验，我主要依靠普通 Java 经验