以前用java写的贪吃蛇游戏

private class SnakePanel extends JPanel
{
private ImageIcon snake = new ImageIcon("GeedSnake.jpe");

public void paintComponent(Graphics g)
{
super.paintComponent(g);
snake.paintIcon(this,g,0,0);
}
}
/*
*键盘控制类,控制蛇头的移动方向
*/
private class ControlKeyListener extends KeyAdapter {

private int direction = -2;
public void keyPressed(KeyEvent ke)
{
if (!game.isPlaying()) return;

switch (ke.getKeyCode()) {
case KeyEvent.VK_DOWN:
if(direction/SnakeBody.DOWN!=-1)
{
game.changeDirection(SnakeBody.DOWN);
direction = -1;
}
break;
case KeyEvent.VK_LEFT:
if(direction/SnakeBody.LEFT!=-1)
{
game.changeDirection(SnakeBody.LEFT);
direction = -2;
}
break;
case KeyEvent.VK_RIGHT:
if(direction/SnakeBody.RIGHT!=-1)
{
game.changeDirection(SnakeBody.RIGHT);
direction = 2;
break;
}
case KeyEvent.VK_UP:
if(direction/SnakeBody.UP!=-1)
{
game.changeDirection(SnakeBody.UP);
direction = 1;
break;
}
default:
break;
}
}
}
}

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