Dispatch / Dispose KeyPressed：动作执行事件

Question

我正在制作Pacman游戏，但它与正常游戏略有不同。该游戏最初有3次机会。机会1由用户通过光标控制，所有移动都记录在文件中，直到Pacman被鬼魂抓住。

因此，简而言之，我想调度/处置KeyPressed事件，以便不会调用已执行的操作事件，我将手动调用它。我的代码如下：

    addKeyListener(new TAdapter());


 class TAdapter extends KeyAdapter {
        public void keyPressed(KeyEvent e) {

          int key = e.getKeyCode();

          if (ingame)
          {
            if (key == KeyEvent.VK_LEFT)
            {
             System.out.println("moved L");
              reqdx=-1;
              reqdy=0;
                try {
                    if(bw!=null)
                        bw.write("L");
                } catch (IOException ex) {
                    Logger.getLogger(Board.class.getName()).log(Level.SEVERE, null, ex);
                }
            }
            else if (key == KeyEvent.VK_RIGHT)
            {System.out.println("moved R");
              reqdx=1;
              reqdy=0;
                try {
                    if(bw!=null)
                        bw.write("R");
                } catch (IOException ex) {
                    Logger.getLogger(Board.class.getName()).log(Level.SEVERE, null, ex);
                }
            }
            else if (key == KeyEvent.VK_UP)
            {System.out.println("moved U");
              reqdx=0;
              reqdy=-1;
                try {
                    if(bw!=null)
                        bw.write("U");
                } catch (IOException ex) {
                    Logger.getLogger(Board.class.getName()).log(Level.SEVERE, null, ex);
                }
            }
            else if (key == KeyEvent.VK_DOWN)
            {System.out.println("moved D");
              reqdx=0;
              reqdy=1;
                try {
                    if(bw!=null)
                        bw.write("D");
                } catch (IOException ex) {
                    Logger.getLogger(Board.class.getName()).log(Level.SEVERE, null, ex);
                }
            }
            else if (key == KeyEvent.VK_ESCAPE && timer.isRunning())
            {
              ingame=false;
            }
            else if (key == KeyEvent.VK_PAUSE) {
                if (timer.isRunning())
                    timer.stop();
                else timer.start();
            }
          }
          else
          {
           if (key == 's' || key == 'S')
          {
              ingame=true;
              GameInit();
            }
          }
      }

          public void keyReleased(KeyEvent e) {
              int key = e.getKeyCode();

              if (key == Event.LEFT || key == Event.RIGHT ||
                 key == Event.UP ||  key == Event.DOWN)
              {
                reqdx=0;
                reqdy=0;
              }
          }
      }

    public void actionPerformed(ActionEvent e) {
        System.out.println("action performed : " + e);

        PlayGame();
    }


 public void PlayGame(Graphics2D g2d) throws IOException {
        if (dying) {
            Death();
        } else {
            if(pacsleft<=2)
            {  
                System.out.println(pacsleft + " Yessss");

            }
              MovePacMan();
            DrawPacMan(g2d);
            moveGhosts(g2d);
            CheckMaze();
        }
    }

我想在这里发送所有事件，条件如下。

  if(pacsleft<=2)
                {  
                    System.out.println(pacsleft + " Yessss");

                }