学习java跟着做的一个小游戏，顺便练习一下如何使用GitHub.zip

package cn.xy.game; import java.awt.Color; import java.awt.Font; import java.awt.Frame; import java.awt.Graphics; import java.awt.Image; import java.awt.event.KeyAdapter; import java.awt.event.KeyEvent; import java.awt.event.WindowAdapter; import java.awt.event.WindowEvent; import java.util.ArrayList; import java.util.Date; import javax.swing.JFrame; public class MyGameFrame extends Frame{ Image planeImage = GameUtil.GetImage("Images/plane.png"); Image bgImg = GameUtil.GetImage("Images/bg.jpg"); Plane plane = new Plane(planeImage,250,250,5); ArrayList<Shell> shellList = new ArrayList<Shell>(); Explode bao; Date startTime = new Date(); Date endTime; int period; //持续时间 @Override public void paint(Graphics g) { g.drawImage(bgImg, 0, 0, null); plane.drawSelf(g); //画出飞机本身 //画出容器中所有的子弹 for(int i=0;i<shellList.size();i++){ Shell b = shellList.get(i); b.draw(g); //飞机和所有炮弹对象进行矩形检测 boolean peng = b.getRect().intersects(plane.getRect()); if(peng){ plane.live = false; //飞机死掉,画面不显示 endTime = new Date(); if(bao==null){ bao = new Explode(plane.x,plane.y); } bao.draw(g); } } if(!plane.live){ if(endTime==null){ endTime = new Date(); } int period = (int)((endTime.getTime()-startTime.getTime())/1000); printInfo(g, "时间："+period+"秒", 50, 120, 260, Color.white); } } public void printInfo(Graphics g,String str,int size,int x,int y,Color color){ Color c = g.getColor(); g.setColor(color); Font f = new Font("宋体",Font.BOLD,size); g.setFont(f); g.drawString(str,x,y); g.setColor(c); } class PaintThread extends Thread{ @Override public void run() { while(true) { repaint(); try { Thread.sleep(40); }catch(InterruptedException e) { e.printStackTrace(); } } } } class KeyMonitor extends KeyAdapter{ @Override public void keyPressed(KeyEvent e) { // TODO Auto-generated method stub plane.addDirection(e); } @Override public void keyReleased(KeyEvent e) { // TODO Auto-generated method stub plane.minusDirection(e); } } public void launchFrame() { this.setTitle("xy"); this.setVisible(true); this.setSize(Constant.GAME_WIDTH, Constant.GAME_HEIGHT); this.setLocation(300, 300); this.addWindowListener(new WindowAdapter(){ @Override public void windowClosing(WindowEvent e) { System.exit(0); } }); for(int i=0;i<50;i++){ Shell b = new Shell(); shellList.add(b); } new PaintThread().start(); addKeyListener(new KeyMonitor()); } public static void main(String[] args) { MyGameFrame frame = new MyGameFrame(); frame.launchFrame(); } //双缓冲 private Image offScreenImage = null; public void update(Graphics g) { if(offScreenImage == null) offScreenImage = this.createImage(Constant.GAME_WIDTH,Constant.GAME_HEIGHT);//这是游戏窗口的宽度和高度 Graphics gOff = offScreenImage.getGraphics(); paint(gOff); g.drawImage(offScreenImage, 0, 0, null); } }