如何获取JPanel上图像的位置（x，y坐标）

Question

如何获取JPanel中图像的位置（x，y坐标）

其实我正在做pacman游戏。吃豆子（图像）在Jpanel的迷宫中移动。我想知道pacman（图像）的xy坐标来检查图像的位置。

public class Pacman extends JPanel{

public Image pacLeft  ;
int x = 0;
int y = 0;
int xa = 0;
int ya = 0;
private Board board;

Pacman(Board board){
    this.board = board;
    pacLeft = new ImageIcon("pac.png").getImage();
}
public void move(){
    if(x + xa > 0 && x + xa < board.getWidth()-pacLeft.getWidth(board))
        x = x+xa;
    if(y + ya > 0 && y+ya < board.getHeight()-pacLeft.getHeight(board))
        y = y+ya;

}


@Override
public void paint(Graphics g) {
   g.drawImage(pacLeft,x,y,this);
}


public void keyPressed(KeyEvent e){
    if(e.getKeyCode() == KeyEvent.VK_LEFT){
        xa = -1; 
    }

    if(e.getKeyCode() == KeyEvent.VK_RIGHT)
        xa = 1;
    if(e.getKeyCode() == KeyEvent.VK_UP)
        ya = -1;
    if(e.getKeyCode() == KeyEvent.VK_DOWN)
        ya = 1;

}
public void KeyReleased(KeyEvent e){
    xa = 0;
    ya = 0;
}


}