Java 写的低级落雨游戏

import javax.swing.*;import java.awt.*;import java.awt.event.*;import java.util.Random;public class Myjava extends JFrame implements Runnable,KeyListener{JPanel panel;long start,finish;JLabel me;int che = 1;public Myjava(int width,int height){panel = new JPanel();panel.setLayout(null);panel.setBackground(Color.yellow);me = new JLabel();me.setBackground(Color.blue);me.setOpaque(true);me.setSize(10,10);me.setLocation(width/2,height-100);add(me);add(panel);addKeyListener(this);setSize(width,height);paintFrame();start = System.currentTimeMillis();}public void paintFrame(){setTitle("有一定几率跑过火");Dimension screenSize = getToolkit().getDefaultToolkit().getScreenSize();setLocation(screenSize.width/2-getWidth()/2,screenSize.height/2-getHeight()/2);setDefaultCloseOperation(EXIT_ON_CLOSE);setVisible(true);}public void element(){int i =0;int time = 0;Random r = new Random();int wei = r.nextInt(getWidth());while(time<100)time = r.nextInt(500);JLabel label = new JLabel("火");label.setSize(15,20);//label.setOpaque(true);label.setBackground(Color.yellow);//label.setForeground(Color.red);panel.add(label);label.setLocation(wei,0);while(true){try{Thread.sleep(time);}catch(InterruptedException e){System.out.println(e.getMessage());}i+=10;label.setLocation(wei,i);if(i>this.getHeight()){label.setLocation(wei=r.nextInt(getWidth()),0);i=0;}pzh(label.getLocation());if(time>20)time-=1;if(che==0)break;}}public void run(){element();}public void pzh(Point pl){Point pm = me.getLocation();if(Math.abs(pl.y-pm.y)<10&&Math.abs(pl.x-pm.x)<10){finish = System.currentTimeMillis();int n=JOptionPane.showConfirmDialog(null,"得分:"+(finish-start)/100+"再来一次","你挂了",JOptionPane.YES_NO_OPTION);if(n==JOptionPane.YES_OPTION){che = 0;dispose();start();}else System.exit(0);}}public void keyPressed(KeyEvent e){int step = 10;Point pm = me.getLocation();switch(e.getKeyCode()){case KeyEvent.VK_LEFT:me.setLocation(pm.x-step,pm.y);break;case KeyEvent.VK_RIGHT:me.setLocation(pm.x+step,pm.y);break;case KeyEvent.VK_UP:me.setLocation(pm.x,pm.y-step);break;case KeyEvent.VK_DOWN:me.setLocation(pm.x,pm.y+step);break;}}public void keyReleased(KeyEvent e){}public void keyTyped(KeyEvent e){}public static void start(){Myjava my = new Myjava(400,400);for(int i=0;i<8;i++)new Thread(my).start();}public static void main(String[] args){start();}}

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