Java实现贪吃蛇游戏源码
苏泰尔德 人气:01.StartGame
package com.qiang.snake; import javax.swing.*; //游戏的主启动类 public class StartGame { public static void main(String[] args) { JFrame frame = new JFrame(); frame.setResizable(false); //窗口大小不可变 frame.setBounds(10,10,900,720); frame.add(new GamePanel()); frame.setVisible(true); frame.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE); } }
2.Data
package com.qiang.snake; import javax.swing.*; import java.net.URL; //数据中心 public class Data { public static URL headerURL = Data.class.getResource("/statics/header.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 URL foodURL = Data.class.getResource("/statics/food.png"); public static ImageIcon header = new ImageIcon(headerURL); 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); public static ImageIcon food = new ImageIcon(foodURL); }
3.GamePanel
package com.qiang.snake; 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; public class GamePanel extends JPanel implements KeyListener, ActionListener { int lenth; //蛇的长度 int[] snakeX = new int[600]; //蛇的坐标x int[] snakeY = new int[500]; //蛇的坐标y String fx = "R"; //蛇的方向 : R:右 L:左 U:上 D:下 boolean isStart = false; //游戏是否开始 Timer timer = new Timer(100, this); //定时器:第一个参数,就是定时执行时间 //食物 int foodx; int foody; Random random = new Random(); boolean isFail = false; //游戏是否结束 int score; //游戏分数! //构造方法 public GamePanel(){ init();//初始化 this.setFocusable(true); //获取焦点事件 this.addKeyListener(this); //键盘监听事件 timer.start(); } //初始化方法 public void init(){ lenth = 3;//初始小蛇有三节,包括小脑袋 //初始化开始的蛇,给蛇定位, snakeX[0] = 100; snakeY[0] = 100; snakeX[1] = 75; snakeY[1] = 100; snakeX[2] = 50; snakeY[2] = 100; //初始化食物数据 foodx = 25 + 25* random.nextInt(34); foody = 75 + 25* random.nextInt(24); score = 0; //初始化游戏分数 } //画组件 @Override public void paintComponent(Graphics g){ super.paintComponent(g);//清屏 this.setBackground(Color.WHITE); //设置面板的背景色 Data.header.paintIcon(this,g,25,11); //绘制头部信息区域 g.fillRect(25,75,850,600); //绘制游戏区域 //把小蛇画上去 if (fx.equals("R")){ //蛇的头通过方向变量来判断 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 < lenth; i++) { Data.body.paintIcon(this,g,snakeX[i],snakeY[i]); //蛇的身体长度根据lenth来控制 } //画食物 Data.food.paintIcon(this,g,foodx,foody); g.setColor(Color.white); g.setFont(new Font("微软雅黑",Font.BOLD,18)); g.drawString("长度 " + lenth,750,35); g.drawString("分数 " + score,750,50); //游戏提示 if (isStart==false){ g.setColor(Color.white); g.setFont(new Font("微软雅黑",Font.BOLD,40)); g.drawString("按下空格开始游戏!",300,300); } //失败判断 if (isFail){ g.setColor(Color.RED); g.setFont(new Font("微软雅黑",Font.BOLD,40)); g.drawString("失败, 按下空格重新开始",200,300); } } @Override public void keyTyped(KeyEvent e) { } //键盘监听事件 @Override public void keyPressed(KeyEvent e) { int keyCode = e.getKeyCode(); //获取按下的键盘 if (keyCode==KeyEvent.VK_SPACE){ //如果是空格 if (isFail){ //如果游戏失败,从头再来! isFail = false; init(); //重新初始化 }else { //否则,暂停游戏 isStart = !isStart; } repaint(); } //键盘控制走向 if (keyCode==KeyEvent.VK_LEFT){ fx = "L"; }else if (keyCode==KeyEvent.VK_RIGHT){ fx = "R"; }else if (keyCode==KeyEvent.VK_UP){ fx = "U"; }else if (keyCode==KeyEvent.VK_DOWN){ fx = "D"; } } @Override public void keyReleased(KeyEvent e) { } //定时执行的操作 @Override public void actionPerformed(ActionEvent e) { //如果游戏处于开始状态,并且没有结束,则小蛇可以移动 if (isStart && isFail==false){ //右移:即让后一个移到前一个的位置即可 ! for (int i = lenth-1; i > 0; i--) { //除了脑袋都往前移:身体移动 snakeX[i] = snakeX[i-1]; //即第i节(后一节)的位置变为(i-1:前一节)节的位置! snakeY[i] = snakeY[i-1]; } //通过方向控制,头部移动 if (fx.equals("R")){ snakeX[0] = snakeX[0]+25; if (snakeX[0]>850) snakeX[0] = 25; }else if (fx.equals("L")){ snakeX[0] = snakeX[0]-25; if (snakeX[0]<25) snakeX[0] = 850; }else if (fx.equals("U")){ snakeY[0] = snakeY[0]-25; if (snakeY[0]<75) snakeY[0] = 650; }else if (fx.equals("D")){ snakeY[0] = snakeY[0]+25; if (snakeY[0]>650) snakeY[0] = 75; } //吃食物:当蛇的头和食物一样时,算吃到食物! if (snakeX[0]==foodx && snakeY[0]==foody){ //1.长度加一 lenth++; //每吃一个食物,增加积分 score = score + 10; //2.重新生成食物 foodx = 25 + 25* random.nextInt(34); foody = 75 + 25* random.nextInt(24); } //结束判断,头和身体撞到了 for (int i = 1; i < lenth; i++) { //如果头和身体碰撞,那就说明游戏失败 if (snakeX[i]==snakeX[0] && snakeY[i]==snakeY[0] ){ isFail = true; } } repaint(); //需要不断的更新页面实现动画 } timer.start();//让时间动起来! } }
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