@Override public void keyPressed(KeyEvent e) { // TODO Auto-generated method stub if (e.getKeyCode() == KeyEvent.VK_W) { this.hero.setDirection(0); hero.moveUp(); } else if (e.getKeyCode() == KeyEvent.VK_D) { this.hero.setDirection(1); hero.moveRight(); } else if (e.getKeyCode() == KeyEvent.VK_S) { this.hero.setDirection(2); hero.moveDown(); } else if (e.getKeyCode() == KeyEvent.VK_A) { this.hero.setDirection(3); hero.moveLeft(); } // 判断玩家是否按下J键 则开火 if (e.getKeyCode() == KeyEvent.VK_J) { if (this.hero.bombs.size() <= 40) { hero.fire(); } } this.repaint(); }