贪吃蛇

此游戏主要包括三个类：

主启动类：GameStart游戏面板类：GamePanel数据中心类：Data

话不多说，直接开始

主启动类：GameStart

package com.teng.Snake; import javax.swing.*; //游戏的主启动类 public class GameStart{ public static void main(String[] args) { JFrame jFrame = new JFrame("小梁学Java之贪吃蛇游戏"); jFrame.add(new GamePanel());//添加面板 jFrame.setVisible(true); jFrame.setResizable(false);//设置窗口大小不可变 jFrame.setBounds(100,100,915,720); jFrame.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE); } }

游戏面板类：GamePanel

package com.teng.Snake; import com.sun.deploy.security.SandboxSecurity; import javafx.scene.input.KeyCode; import javax.swing.*; import java.awt.*; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import java.awt.event.KeyEvent; import java.awt.event.KeyListener; import java.util.Random; //游戏面板 public class GamePanel extends JPanel implements KeyListener, ActionListener { //定义蛇的数据 int length;//定义蛇的长度 int[] snakeX = new int[600];//蛇的X坐标 int[] snakeY = new int[500];//蛇的Y坐标 String fx;//定义方向 int score;//定义当前长度 int top;//定义最高长度 //定义食物坐标 int foodx; int foody; Random random = new Random(); boolean isStart = false;//设置游戏初始状态为等待开始 boolean isOver = false;//判定游戏失败，默认为否 boolean isStop = false;//判定游戏暂停，默认为否 Timer timer = new Timer(100,this);//监听对象为本窗口，且100ms执行一次 public GamePanel(){ init(); this.setFocusable(true); this.addKeyListener(this);//添加键盘监听事件 timer.start();//游戏开始的时候定时器就启动 } //初始化方法 public void init(){ length = 3; snakeX[0] = 100;snakeY[0] = 100;//蛇的头部; snakeX[1] = 75;snakeY[1] = 100;//蛇的第一节身体; snakeX[2] = 50;snakeY[2] = 100;//蛇的第二节身体; fx = "R"; foodx = 25+25*random.nextInt(34); foody = 75+25*random.nextInt(24); score = 0; } //绘制面板 @Override protected void paintComponent(Graphics g) {//游戏中的东西都用这支画笔来画 super.paintComponent(g);//清屏 Data.head.paintIcon(this,g,25,11);//顶部的广告栏 g.fillRect(25,75,850,600);//游戏界面 this.setBackground(Color.white); //计分板 g.setColor(Color.white); g.setFont(new Font("微软雅黑",Font.BOLD,18)); g.drawString("当前长度为："+score,650,30); g.drawString("历史最高为："+top,650,53); //绘制蛇 //通过“fx”变量来判断蛇头的初始化方向 if (fx.equals("R")) Data.right.paintIcon(this,g,snakeX[0],snakeY[0]); else if(fx.equals("L")) Data.left.paintIcon(this,g,snakeX[0],snakeY[0]); else if(fx.equals("U")) Data.up.paintIcon(this,g,snakeX[0],snakeY[0]); else if(fx.equals("D")) Data.down.paintIcon(this,g,snakeX[0],snakeY[0]); for (int i = 1; i g.setColor(Color.RED); g.setFont(new Font("华文行楷",Font.BOLD,50)); g.drawString("按下空格键开始游戏",220,300); } if(isStart == false && isOver == false && isStop == true){ g.setColor(Color.RED); g.setFont(new Font("华文行楷",Font.BOLD,50)); g.drawString("游戏已暂停，按下空格键继续游戏",50,300); } if(isOver == true){ g.setColor(Color.RED); g.setFont(new Font("华文行楷",Font.BOLD,50)); g.drawString("游戏结束,按下空格重新开始",120,300); } } //键盘监听 @Override public void keyPressed(KeyEvent e) { int keyCode = e.getKeyCode();//获取按下的按钮码 if(keyCode == KeyEvent.VK_SPACE){//如果按下的是空格 if(isOver) { isOver = false; isStop = false; } else { isStart = !isStart; isStop = true; } } repaint();//重画 //小蛇移动 if(keyCode == KeyEvent.VK_UP) fx = "U"; if(keyCode == KeyEvent.VK_DOWN) fx = "D"; if(keyCode == KeyEvent.VK_LEFT) fx = "L"; if(keyCode == KeyEvent.VK_RIGHT) fx = "R"; } //事件监听——通过固定的事件来刷新 @Override public void actionPerformed(ActionEvent e) { if(isStart == true && isOver == false){//如果游戏是开始状态 //移动 for (int i = length-1; i >0 ; i--) { snakeX[i] = snakeX[i-1]; snakeY[i] = snakeY[i-1]; } //控制走向 if(fx.equals("U")){ snakeY[0] = snakeY[0]-25; //边界判断 if (snakeY[0] snakeX[0] = snakeX[0]-25; if (snakeX[0] length ++; score ++; if(score>=top) top = score; foodx = 25+25*random.nextInt(34); foody = 75+25*random.nextInt(24); } //判定游戏结束 for (int i = 1; i isOver = true; init(); } } repaint(); } timer.start();//定时器开启 } @Override public void keyReleased(KeyEvent e) { } @Override public void keyTyped(KeyEvent e) { } }

数据中心类：Data

package com.teng.Snake; import javax.swing.*; import java.net.URL; //数据中心 public class Data { public static URL headURL = Data.class.getResource("statics/head.png"); public static URL foodURL = Data.class.getResource("statics/food.png"); public static URL upURL = Data.class.getResource("statics/up.png"); public static URL downURL = Data.class.getResource("statics/down.png"); public static URL leftURL = Data.class.getResource("statics/left.png"); public static URL rightURL = Data.class.getResource("statics/right.png"); public static URL bodyURL = Data.class.getResource("statics/body.png"); public static ImageIcon head = new ImageIcon(headURL); public static ImageIcon food = new ImageIcon(foodURL); public static ImageIcon up = new ImageIcon(upURL); public static ImageIcon down = new ImageIcon(downURL); public static ImageIcon left = new ImageIcon(leftURL); public static ImageIcon right = new ImageIcon(rightURL); public static ImageIcon body = new ImageIcon(bodyURL); }

运行图：
游戏初始界面：

游戏运行界面：

游戏暂停界面：

游戏结束界面：

总结

贪吃蛇游戏汇总了GUI编程所学知识游戏还可以进行大量优化，比如失败判定加一个边界、食物不会刷新到小蛇身体的坐标、游戏难度分级，甚至还想加个数据库记录最高分哈哈哈哈(日后慢慢来嘿嘿)

最后附上游戏源码：
链接：https://pan.baidu.com/s/1bH87OmWSssTtLUacN3KThw
提取码：gqas