Question

我正在尝试进行碰撞检测，并设法实际做到这一点然而它抛出一个java.lang.OutOfMemoryError：Java堆空间，我相信它是因为不断检查xPosition和yPosition的位置

    public void fireBullet(Graphics g, int pow, int angle, int size) {
    Rectangle bullet = new Rectangle(xPos - size/2, yPos - size/2, size, size);
    g.setColor(new Color(200,255,255));
    g.fillOval(bullet.x, bullet.y, bullet.width, bullet.height);    
    if (LevelType.EASY != null & bullet.intersects(Level1.getBoundsR())){
    System.out.println("hi from level 1");
    xPosition = 50;
    yPosition = 350;
    this.setFocusable(false);
    new Something().setVisible(true);
        }

并且在PaintComponent中的这个类之后我有

fireBullet(g, xPosition, yPosition, 10);

我还将VM参数设置为-Xms512M -Xmx2048M，并在任务管理器上观察我的内存运行速度有多快，我说它在30秒左右就消失了。

关注

Exception in thread "AWT-EventQueue-0" java.lang.OutOfMemoryError: Java heap space
at java.awt.image.DataBufferByte.<init>(Unknown Source)
at java.awt.image.ComponentSampleModel.createDataBuffer(Unknown Source)
at java.awt.image.Raster.createWritableRaster(Unknown Source)
at javax.imageio.ImageTypeSpecifier.createBufferedImage(Unknown Source)
at javax.imageio.ImageReader.getDestination(Unknown Source)
at com.sun.imageio.plugins.png.PNGImageReader.readImage(Unknown Source)
at com.sun.imageio.plugins.png.PNGImageReader.read(Unknown Source)
at javax.imageio.ImageIO.read(Unknown Source)
at javax.imageio.ImageIO.read(Unknown Source)
at cannonGame.GamePanel.paintComponent(GamePanel.java:99)
at javax.swing.JComponent.paint(Unknown Source)
at javax.swing.JComponent.paintToOffscreen(Unknown Source)
at javax.swing.RepaintManager$PaintManager.paintDoubleBuffered(Unknown Source)
at javax.swing.RepaintManager$PaintManager.paint(Unknown Source)
at javax.swing.RepaintManager.paint(Unknown Source)
at javax.swing.JComponent._paintImmediately(Unknown Source)
at javax.swing.JComponent.paintImmediately(Unknown Source)
at javax.swing.RepaintManager$3.run(Unknown Source)
at javax.swing.RepaintManager$3.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(Unknown Source)
at javax.swing.RepaintManager.paintDirtyRegions(Unknown Source)
at javax.swing.RepaintManager.paintDirtyRegions(Unknown Source)
at javax.swing.RepaintManager.prePaintDirtyRegions(Unknown Source)
at javax.swing.RepaintManager.access$1100(Unknown Source)
at javax.swing.RepaintManager$ProcessingRunnable.run(Unknown Source)
at java.awt.event.InvocationEvent.dispatch(Unknown Source)
at java.awt.EventQueue.dispatchEventImpl(Unknown Source)
at java.awt.EventQueue.access$200(Unknown Source)
at java.awt.EventQueue$3.run(Unknown Source)
at java.awt.EventQueue$3.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)

加上我已经注释掉了碰撞检测代码，你们是对的，不是吗。

另一个关注所以我已经检查了GamePanel.java:99中的内容，发现这个代码我并没有真正使用，它就在那里，我删除了它，现在一切都很顺利。

    BufferedImage myPicture = null;
    try {
        myPicture = ImageIO.read(new File("resources/Level1Bk.jpg"));
    } catch (IOException e) {
        System.out.println(e);
        e.printStackTrace();
    }
    JLabel picLabel = new JLabel(new ImageIcon(myPicture));
    add(picLabel);

因为@Oleg Estekhin提到每张重画都会画一幅新照片，谢谢你

java.lang.OutOfMemoryError：带有碰撞检测的Java堆空间

0 个答案: