Question

我必须创建两个球，这些球在使用javaFX碰撞时会改变方向。

在一本教程书中，有一个有关碰撞的解释，但似乎不起作用。

这里是管理碰撞的球类：

private void controleerBotsing() {
   if (this.intersects(andereBal.getLayoutBounds())) {
      double temp = dx;
      dx = andereBal.dx;
      andereBal.dx = temp;

      temp = dy;
      dy = andereBal.dy;
      andereBal.dy = temp;
   }
}

在我的代码中，我的球类是这样的：

package vbxxyy;

import javafx.geometry.Bounds;
import javafx.scene.paint.Color;
import javafx.scene.paint.CycleMethod;
import javafx.scene.paint.RadialGradient;
import javafx.scene.paint.Stop;
import javafx.scene.shape.Circle;

public class Biljartbal extends Circle {
    private final int straal;
    private final Color kleur;
    private final double maxX, maxY;
    private double dx, dy;

    public Biljartbal(int x, int y, int straal, Color kleur, double maxX, double maxY) {
        super(x, y, straal);
        this.kleur = kleur;
        this.straal = straal;
        this.maxX = maxX;
        this.maxY = maxY;
        final RadialGradient gradient = new RadialGradient(0, 0, .35, .35, .5,
                true, CycleMethod.NO_CYCLE, new Stop(0.0, Color.WHITE), new Stop(1.0, kleur));
        this.setFill(gradient);
        dx = 3 * Math.random() + 1;
        dy = 4 * Math.random() + 1;
    }

    public void verplaats() {
        setCenterX(getCenterX() + dx);
        setCenterY(getCenterY() + dy);
        // Als je voorbij de linker- of rechterkant bent, draai dan de x-richting om
        if((getCenterX() < straal) || (getCenterX() >= maxX - straal))
            dx = -dx;
        // Als je voorbij de onder- of bovenkant bent, draai dan de y-richting om
        if((getCenterY() >= maxY - straal) || (getCenterY() < straal))
            dy = -dy;
    }
}

还有带有时间表和关键帧的窗格，如下所示：

package vbxxyy;

import javafx.animation.KeyFrame;
import javafx.animation.Timeline;
import javafx.scene.layout.Pane;
import javafx.scene.paint.Color;
import javafx.util.Duration;

public class Vb1205 {
    public final Biljartbal bal, bal2;
    public final KeyFrame keyframe1, keyframe2;
    public final Timeline timeline1, timeline2;

    public Vb1205(Pane p) {
        bal = new Biljartbal(30, 40, 20, Color.RED, p.getWidth(), p.getHeight());
        bal2 = new Biljartbal(30, 40, 20, Color.BLUE, p.getWidth(), p.getHeight());
        p.getChildren().addAll(bal, bal2);

        keyframe1 = new KeyFrame(Duration.millis(15), e -> bal.verplaats());
        keyframe2 = new KeyFrame(Duration.millis(15), e -> bal2.verplaats());
        timeline1 = new Timeline(keyframe1);
        timeline2 = new Timeline(keyframe2);
        timeline1.setCycleCount(Timeline.INDEFINITE);
        timeline2.setCycleCount(Timeline.INDEFINITE);
        timeline1.play();
        timeline2.play();
    }
}

是否有解决两个球之间碰撞的解决方案？

有人可以帮助我吗？

JavaFX-冲突管理

0 个答案: