java实现弹球小游戏

GUI实现弹球小游戏，供大家参考，具体内容如下

先看一下游戏效果图。

一个简单的Demo。也比较简单，新手试着做一做完善改进。

源代码

import Com.Style.FontStyle;import javax.swing.*;import java.awt.*;import java.awt.event.*;/** * @Author： 冀十三 * @DescIption： 弹球小游戏 * @Date:2021--06--10--17:08 */public class Demo extends JFrame { //创建游戏窗口 public Demo() {init(); } //桌面大小 private final int TABLE_WIDTH = 450; private final int TABLE_HEIGHT = 600; //球大小 private final int BALL_SIZE = 15; //球拍大小 private final int RACKET_WIDTH = 120; private final int RACKET_HEIGHT = 20; //记录小球坐标 private double BallX = 100; private double BallY = 200; //记录球拍坐标 private double RACKET_X = 150; private final double RACKET_Y = 380; //记录小球速度 private double speedX = 10; private double speedY = 20; //记录游戏是否结束 private boolean isOver = false; //声明一个积分器 int score= 0; //声明一个计时器。 ActionListener run = new ActionListener() {@Overridepublic void actionPerformed(ActionEvent e) { //更新小球坐标让小球动起来 BallY+=speedY; BallX+=speedX; //重绘界面 mycanvas.repaint(); //碰到两边的时候 if (BallX<=0||BallX>=TABLE_WIDTH-BALL_SIZE){speedX=-speedX; } //碰到上边界的时候 if(BallY<=0){speedY=-speedY; } //接住小球的时候 if ( BallY>=(RACKET_Y-BALL_SIZE)&&BallX>RACKET_X&&BallX<(RACKET_X+RACKET_WIDTH)){//得10分score+=10;speedY=-speedY; } if ((BallY>(RACKET_Y-BALL_SIZE)&&(BallX<RACKET_X||BallX>RACKET_X+RACKET_WIDTH))){timer.stop();isOver=true;mycanvas.repaint(); }} };private Timer timer = new Timer(60, run);//内部类继承Canvas充当画布private class myCanvas extends Canvas { public void paint(Graphics g) {//绘制内容//如果游戏结束if (isOver) { //给画笔颜色 g.setColor(new Color(0xFF9A1B44, true)); //给画笔字体 g.setFont(new Font('宋体', FontStyle.BOLD, 25)); g.drawString('Game Over!', 120, TABLE_HEIGHT / 4); g.drawString('成绩'+score+'分', 120, TABLE_HEIGHT / 3); g.drawString('按空格再来一次', 120, TABLE_HEIGHT / 2);} else { //否则游戏中 //绘制小球 g.setColor(new Color(0xFF09FAA6, true)); g.fillOval((int) BallX, (int) BallY, BALL_SIZE, BALL_SIZE); //画一个积分系统 //上色 g.setColor(new Color(0xE8DC0C77,true)); //给画笔字体 g.setFont(new Font('宋体', FontStyle.BOLD, 25)); g.drawString('得分:'+score, 25, 25); //绘制球拍 g.setColor(new Color(0xFF0E51D7, true)); g.fillRect((int) RACKET_X, (int) RACKET_Y, RACKET_WIDTH, RACKET_HEIGHT); timer.start();} }}//创建绘画区myCanvas mycanvas = new myCanvas();//窗口初始化public void init() { JFrame jFrame = new JFrame(); jFrame.setTitle('弹球小游戏');//窗口名称 jFrame.pack();//自适应布局 jFrame.setVisible(true);//可见 jFrame.add(mycanvas); jFrame.setBounds(500, 200, TABLE_WIDTH, TABLE_HEIGHT); jFrame.setDefaultCloseOperation(WindowConstants.DISPOSE_ON_CLOSE);//关闭 mycanvas.setPreferredSize(new Dimension(TABLE_WIDTH, TABLE_HEIGHT));//画布大小 jFrame.setResizable(false);//大小不可变 KeyListener keyListener = new KeyAdapter() {//重写键盘被按压的方法@Overridepublic void keyPressed(KeyEvent e) { //接收按下的是哪个键 int key = e.getKeyCode(); if (key == KeyEvent.VK_LEFT) {if (RACKET_X >0) { RACKET_X -= 30;} } if (key == KeyEvent.VK_RIGHT) {if (RACKET_X < (TABLE_WIDTH - RACKET_WIDTH )) { RACKET_X += 30;} } if (key == KeyEvent.VK_SPACE) {if (isOver=true) { Demo.main(null);} }} }; //窗口获取键盘监听 jFrame.addKeyListener(keyListener); //键盘获取键盘监听 mycanvas.addKeyListener(keyListener);}public static void main(String[] args) { new Demo();}}

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