贪吃蛇Java源码.docVIP

/***************************************************************************文件名：GreedSnake.java*作者：C.Jason*要点分析：*1）主要部分已经集成为一个对象SnakeModel，利用键盘控制实现操作。*************************************************************************/import java.awt.*;import java.awt.event.*;import javax.swing.*;import java.util.*;//＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝//Main Class//＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝public class GreedSnake implements KeyListener{JFrame mainFrame;Canvas paintCanvas;JLabel labelScore;//计分牌SnakeModel snakeModel=null;// 蛇public static final int canvasWidth=200;public static final int canvasHeight=300;public static final int nodeWidth=10;public static final int nodeHeight=10;////GreedSnake():初始化游戏界面//public GreedSnake(){//设置界面元素mainFrame=new JFrame(GreedSnake);Container cp=mainFrame.getContentPane();labelScore=new JLabel(Score:);cp.add(labelScore,BorderLayout.NORTH);paintCanvas=new Canvas();paintCanvas.setSize(canvasWidth+1,canvasHeight+1);paintCanvas.addKeyListener(this);cp.add(paintCanvas,BorderLayout.CENTER);JPanel panelButtom=new JPanel();panelButtom.setLayout(new BorderLayout());JLabel labelHelp;// 帮助信息labelHelp=new JLabel(PageUp, PageDown for speed;,JLabel.CENTER);panelButtom.add(labelHelp,BorderLayout.NORTH);labelHelp=new JLabel(ENTER or R or S for start;,JLabel.CENTER);panelButtom.add(labelHelp,BorderLayout.CENTER);labelHelp=new JLabel(SPACE or P for pause,JLabel.CENTER);panelButtom.add(labelHelp,BorderLayout.SOUTH);cp.add(panelButtom,BorderLayout.SOUTH);mainFrame.addKeyListener(this);mainFrame.pack();mainFrame.setResizable(false);mainFrame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);mainFrame.setVisible(true);begin();}////keyPressed():按??检测//public void keyPressed(KeyEvent e){int keyCode=e.getKeyCode();if(snakeModel.running) switch(keyCode){case KeyEvent.VK_UP:snakeModel.changeDirection(SnakeModel.UP);break;case KeyEvent.VK_DOWN:snakeModel.changeDirection(SnakeModel.DO