java写的贪吃蛇小游戏
游戏的主启动类
import javax.swing.*;//游戏的主启动类public class StarGame {public static void main(String[] args) {JFrame jFrame = new JFrame(); jFrame.add(new GamePanel()); //窗口的坐标与大小 jFrame.setBounds(10,10,900,720); //窗口大小不可变 jFrame.setResizable(false); //设置窗口为可见的 jFrame.setVisible(true); //退出窗口 jFrame.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE); }}
游戏的面板
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;//游戏的面板public class GamePanel extends JPanel implements KeyListener, ActionListener {//定义蛇的数据结构 int length;//蛇的长度 int[] snakeX = new int[600];//蛇的x坐标25*25 int[] snakeY = new int[500];//蛇的y坐标25*25 String fx; //游戏当前的状态:开始、停止 boolean isStart = false;//默认是不开始！ //食物的坐标 int foodx; int foody; Random random = new Random(); //成绩 int score; //游戏失败状态 boolean isFail = false; //定时器 以ms为单位 1000ms=1s Timer timer = new Timer(100,this);//100ms执行一次 //构造器 public GamePanel(){init(); //获得焦点事件 this.setFocusable(true); //获得键盘监听事件 this.addKeyListener(this); //游戏一开始，定时器就启动 timer.start(); } //初始化方法 public void init(){length = 3; snakeX[0]=100;snakeY[0]=100;//脑袋的坐标 snakeX[1]=75;snakeY[1]=100;//第一个身体的坐标 snakeX[2]=50;snakeY[2]=100;//第二个身体的坐标 fx = "R";//初始方向向右 foodx = 25 25 * random.nextInt(34); foody = 75 25 * random.nextInt(24); //初始化成绩 score = 0; } //绘制面板 @Override protected void paintComponent(Graphics g) {//用来清屏 super.paintComponent(g); //绘制静态的画板 setBackground(Color.WHITE); //广告头 Data.header.paintIcon(this,g,25,11); //矩形面板 g.fillRect(25,75,850,600); //画积分 g.setColor(Color.white); g.setFont(new Font("微软雅黑",Font.BOLD,18)); g.drawString("长度:" length,750,34); g.drawString("分数:" score,750,51); //把食物画上去 Data.foot.paintIcon(this,g,foodx,foody); //把小蛇画上去 if(fx.equals("R")){Data.right.paintIcon(this,g,snakeX[0],snakeY[0]);//蛇头初始化向右 }else if(fx.equals("L")){Data.left.paintIcon(this,g,snakeX[0],snakeY[0]);//蛇头初始化向左 }else if(fx.equals("U")){Data.up.paintIcon(this,g,snakeX[0],snakeY[0]);//蛇头初始化向上 }else if(fx.equals("D")){Data.down.paintIcon(this,g,snakeX[0],snakeY[0]);//蛇头初始化向下 } for (int i = 1; i < length; i ) {Data.body.paintIcon(this,g,snakeX[i],snakeY[i]); } //Data.body.paintIcon(this,g,snakeX[1],snakeY[1]);//第一个身体的坐标 //Data.body.paintIcon(this,g,snakeX[2],snakeY[2]);//第二个身体的坐标 //游戏状态 if (isStart==false){//设置字体颜色 g.setColor(Color.white); g.setFont(new Font("微软雅黑",Font.BOLD,40));//设置字体 g.drawString("按下空格开始游戏",300,300); } if(isFail){g.setColor(Color.red); g.setFont(new Font("微软雅黑",Font.BOLD,40));//设置字体 g.drawString("游戏失败，按下空格重新开始！",300,300); } } //键盘监听事件 @Override public void keyPressed(KeyEvent e) {int keyCode = e.getKeyCode();//获得键盘按键是哪一个 if(keyCode == e.VK_SPACE){//如果按下的空格键 if(isFail){//重新开始 isFail = false; init(); }else {isStart = !isStart;//取反 } repaint(); } //小蛇移动 if(keyCode == KeyEvent.VK_UP){fx = "U"; }else if(keyCode == KeyEvent.VK_DOWN){fx = "D"; }else if(keyCode == KeyEvent.VK_LEFT){fx = "L"; }else if(keyCode == KeyEvent.VK_RIGHT){fx = "R"; } } //事件监听··需要通过固定事件来刷新，1s=10次 @Override public void actionPerformed(ActionEvent e) {//吃食物 if(snakeX[0] == foodx && snakeY[0] == foody){//小蛇长度 1 length ; //分数 10 score = score 10; //再次随机食物 foodx = 25 25 * random.nextInt(34); foody = 75 25 * random.nextInt(24); } if(isStart && isFail == false){//如果游戏是开始状态，就让小蛇动起来！ //移动 for (int i = length-1; i > 0; i--) {snakeX[i] = snakeX[i-1]; snakeY[i] = snakeY[i-1]; } //走向 if(fx.equals("R")){snakeX[0] = snakeX[0] 25; if(snakeX[0]>850){ snakeX[0] = 25; }//边界判断 }else if(fx.equals("L")){snakeX[0] = snakeX[0]-25; if(snakeX[0]<25){ snakeX[0] = 850; }//边界判断 }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;} } //失败判断，撞到自己就算失败 for (int i = 1; i < length; i ) {if(snakeX[0] == snakeX[i] && snakeY[0] == snakeY[i]){isFail = true; } } repaint();//重画页面 } timer.start();//定时器开启； } @Override public void keyTyped(KeyEvent e) {} @Override public void keyReleased(KeyEvent e) {}}
游戏的素材类
import javax.swing.*;import java.net.URL;public class Data {public static URL headerURL = Data.class.getResource("static/header.png"); public static ImageIcon header = new ImageIcon(headerURL); public static URL upURL = Data.class.getResource("static/up.png"); public static ImageIcon up = new ImageIcon(upURL); public static URL downURL = Data.class.getResource("static/down.png"); public static ImageIcon down = new ImageIcon(downURL); public static URL bodyURL = Data.class.getResource("static/body.png"); public static ImageIcon body = new ImageIcon(bodyURL); public static URL leftURL = Data.class.getResource("static/left.png"); public static ImageIcon left = new ImageIcon(leftURL); public static URL rightURL = Data.class.getResource("static/right.png"); public static ImageIcon right = new ImageIcon(rightURL); public static URL footURL = Data.class.getResource("static/foot.png"); public static ImageIcon foot = new ImageIcon(footURL);
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