这期内容当中小编将会给大家带来有关使用Java编写一个弹球小游戏，文章内容丰富且以专业的角度为大家分析和叙述，阅读完这篇文章希望大家可以有所收获。
具体内容如下
import java.awt.Canvas;
import java.awt.Color;
import java.awt.Dimension;
import java.awt.Font;
import java.awt.Frame;
import java.awt.Graphics;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.KeyAdapter;
import java.awt.event.KeyEvent;
import java.awt.event.KeyListener;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import javax.swing.Timer;
public class PinBallGame {
//创建窗口对象
private Frame frame = new Frame("弹球游戏");
//桌面宽度
private final int TABLE_WTDTH = 300;
//桌面高度
private final int TABLE_HEIGHT = 400;
//球拍的高度和宽度
private final int RACKET_WIDTH = 60;
private final int RACKET_HETGHT = 20;
//小球的大小
private final int BALL_SIZE = 16;
//定义变量，记录小球的坐标
private int ballX = 120;
private int ballY = 20;
//定义变量，记录小球在x和y方向上分别移动的速度
private int speedY = 10;
private int speedX = 5;
//定义变量，记录球拍的坐标
private int racketX = 120;
private final int racketY = 340;
//定义变量，标识当前游戏是否已结束
private boolean isOver = false;
//声明一个定时器
private Timer timer;
//自定义一个类，继承Canvas，充当画布
@SuppressWarnings("serial")
private class MyCanvas extends Canvas{
@Override
public void paint(Graphics g) {
//TODO 在这里绘制内容
if (isOver) {
//游戏结束
g.setColor(Color.BLUE);
g.setFont(new Font("Times",Font.BOLD,30));
g.drawString("游戏结束！", 50, 200);
}else{
//游戏中
//绘制小球
g.setColor(Color.RED);
g.fillOval(ballX, ballY, BALL_SIZE, BALL_SIZE);
//绘制球拍
g.setColor(Color.PINK);
g.fillRect(racketX, racketY, RACKET_WIDTH, RACKET_HETGHT);
}
}
}
//创建绘画区域
MyCanvas drawArea = new MyCanvas();
public void init() {
//组装视图，游戏逻辑的控制
//完成球拍坐标的变化
KeyListener listener = new KeyAdapter() {
@Override
public void keyPressed(KeyEvent e) {
//获取当前按下的键
int keyCode = e.getKeyCode();
if (keyCode == KeyEvent.VK_LEFT) {
//<- 应该向左移动
if (racketX>0) {
racketX -= 10;
}
}
if (keyCode == KeyEvent.VK_RIGHT) {
//-> 应该向右移动
if (racketX <(TABLE_WTDTH - RACKET_WIDTH)) {
racketX += 10;
}
}
}
};
//给Frame和drawArea注测监听器
frame.addKeyListener(listener);
drawArea.addKeyListener(listener);
//小球坐标的控制
ActionListener task = new ActionListener() {
@Override
public void actionPerformed(ActionEvent arg0) {
//根据边界范围，修正速度
if (ballX<=0 || ballX>=(TABLE_WTDTH-BALL_SIZE)) {
speedX = -speedX;
}
if (ballY <= 0 || (ballY > racketY-BALL_SIZE && ballX>racketX && ballX < racketX+RACKET_WIDTH)) {
speedY = -speedY;
}
if (ballY > racketY-BALL_SIZE && (ballX < racketX || ballX > racketX+RACKET_WIDTH)) {
//当前小球超出了球拍的范围，游戏结束
//停止定时器
timer.stop();
//修改游戏是否结束的标记
isOver = true;
//重绘界面
drawArea.repaint();
}
//更新小球的坐标，重绘界面
ballX += speedX;
ballY += speedY;
//重绘界面
drawArea.repaint();
}
};
timer = new Timer(100, task);
timer.start();
drawArea.setPreferredSize(new Dimension(TABLE_WTDTH,TABLE_HEIGHT));
frame.add(drawArea);
//设置frame很好大小，并可视
frame.pack();
frame.setVisible(true);
frame.setLocationRelativeTo(null);
frame.addWindowListener(new WindowAdapter() {
@Override
public void windowClosing(WindowEvent e) {
System.exit(0);
}
});
}
public static void main(String[] args) {
new PinBallGame().init();
}
}上述就是小编为大家分享的使用Java编写一个弹球小游戏了，如果刚好有类似的疑惑，不妨参照上述分析进行理解。如果想知道更多相关知识，欢迎关注创新互联行业资讯频道。
