我需要设计一个有两个玩家的游戏。每个人都有一个球，应该能够左右移动球，第一个球员带有’a’‘d’按钮，第二个球员带有右，左箭头按钮。但是，当前一名球员需要等待另一名球员的动作完成才能移动自己的球。我该如何解决这个问题？这是我的代码的相关部分：

    public class AnimationWindow extends JPanel{

      public AnimationWindow()
        {

            super();
            ....
            ....
            cezmiMover();

        }



public void cezmiMover(){

        this.getInputMap().put(KeyStroke.getKeyStroke('a'), "left1");
        this.getActionMap().put("left1", new AbstractAction() {

            public void actionPerformed(ActionEvent e) {

                board.cezmi1.moveLeft();
            }
        });

        this.getInputMap().put(KeyStroke.getKeyStroke('d'), "right1");
        this.getActionMap().put("right1", new AbstractAction() {

            public void actionPerformed(ActionEvent e) {

                board.cezmi1.moveRight();
            }
        });

        this.getInputMap().put(KeyStroke.getKeyStroke("LEFT"), "left2");
        this.getActionMap().put("left2", new AbstractAction() {

            public void actionPerformed(ActionEvent e) {

                board.cezmi2.moveLeft();
            }
        });

        this.getInputMap().put(KeyStroke.getKeyStroke("RIGHT"), "right2");
        this.getActionMap().put("right2", new AbstractAction() {

            public void actionPerformed(ActionEvent e) {

                board.cezmi2.moveRight();
            }
        }); 
    }
}