简单的飞机游戏（Java）

package Fly.Game; import java.awt.Color; import java.awt.Font; import java.awt.Graphics; import java.awt.event.MouseEvent; import java.awt.event.MouseListener; import java.awt.event.MouseMotionListener; import java.net.URL; import java.util.ArrayList; import java.util.List; import javax.swing.ImageIcon; import javax.swing.JPanel; public class JPanel_game extends JPanel implements MouseMotionListener,MouseListener{ int x,y; //主机的坐标 int xx[]; int yy[];//背景星星数组 Font[] fonts; List<Choose> downs; //下落 List<Choose> fires; //上升的子弹 int fires_speed = 20; //运动的速度（数值越大 速度越慢） int downs_speed = 60; //飞机数量 int sum = 0; Boolean isFires=false; public JPanel_game() { // TODO Auto-generated constructor stub this.addMouseMotionListener(this); this.addMouseListener(this); x=150; y=600; //设置主机坐标 xx = new int[50];yy = new int[50]; for(int i = 0 ; i<50;i++){ xx[i]=(int)(Math.random()*400); yy[i]=(int)(Math.random()*700); } fonts = new Font[4]; //设置字体 四个参数 fonts[0] = new Font("微软雅黑", Font.BOLD, 18); fonts[1] = new Font("微软雅黑", Font.BOLD, 24); fonts[2] = new Font("微软雅黑", Font.BOLD, 14); fonts[3] = new Font("微软雅黑", Font.BOLD, 32); downs = new ArrayList<Choose>(); fires = new ArrayList<Choose>(); } @Override public void paint(Graphics g) { // TODO Auto-generated method stub super.paint(g); //调用Choose Choose choose = new Choose(); //背景图片 import java.net.URL; URL B_img = getClass().getResource("back.jpg"); ImageIcon B_icon = new ImageIcon(B_img); g.drawImage(B_icon.getImage(), 0, 0, 400, 700,null); //显示飞机数量 g.setColor(Color.white); g.drawString("干掉飞机："+sum+"架", 10, 20); //画星星 // g.setColor(Color.white); g.setColor(new Color((int)(Math.random()*0xffffff))); //随机颜色 for(int i=0; i<xx.length;i++){ g.setFont(fonts[(int)(Math.random()*4)]); //改变字体大小 g.drawString("★", xx[i], yy[i]); } //显示主机 URL My_img = getClass().getResource("el_0.gif"); ImageIcon My_icon = new ImageIcon(My_img); g.drawImage(My_icon.getImage(), x, y, 60, 60,null); //显示敌机 for(int i=0;i<downs.size();i++){ choose = downs.get(i); choose.draw(g); } //显示子弹 for(int i=0;i<fires.size();i++){ choose = fires.get(i); choose.draw(g); } } //创建线程 public void st() { // TODO Auto-generated method stub Thread th = new Thread(){ @Override public void run() { // TODO Auto-generated method stub super.run(); int count = 0; //设定速度初始值 while (true) { count++; if(count%downs_speed==0){ //当count 自增到60的时候，敌机开始往下落 Choose ch = new Choose(); int tem_x = (int) (Math.random()*400); //敌机的x轴坐标 int tem_y = -40; //y轴坐标 ch.setX(tem_x); //将数据放进X ch.setY(tem_y); ch.setR(20); ch.setType(1); ch.setOperation(1); //将信息加入 downs集合 downs.add(ch); } for(int i=0;i<downs.size();i++){ Choose c = downs.get(i); c.move(); if(c.getY()>=JPanel_game.this.getHeight()){ downs.remove(i); } } //子弹往上升的动作 if(isFires&&count%fires_speed==0){ //isFires满足ture //count%fires_speed==0 Choose ch = new Choose(); ch.setR(10); ch.setX(x+20); ch.setY(y); ch.setType(0); ch.setOperation(0); fires.add(ch); } for(int i=0;i<fires.size();i++){ Choose c = fires.get(i); c.move(); if(c.getY()<0){ fires.remove(i); } } //判断飞机子弹是否接触 //敌r+飞r <=2R 则消除 for(int i=0;i<fires.size();i++){ for(int j=0;j<downs.size();j++){ if(i<fires.size()&&j<downs.size()&&fires.get(i).isTouch(downs.get(j))){ ////&&fires.get(i).isTouch(downs.get(j)) 对半径判断的引用 fires.remove(i); downs.remove(j); sum++; } } } try { //休眠时间 Thread.sleep(5); } catch (InterruptedException e) { // TODO Auto-generated catch block e.printStackTrace(); } repaint(); } } }; th.start(); } @Override public void mouseClicked(MouseEvent e) { // TODO Auto-generated method stub } @Override public void mousePressed(MouseEvent e) { // TODO Auto-generated method stub isFires = true; } //按下 @Override public void mouseReleased(MouseEvent e) { // TODO Auto-generated method stub isFires = false; } @Override public void mouseEntered(MouseEvent e) { // TODO Auto-generated method stub } @Override public void mouseExited(MouseEvent e) { // TODO Auto-generated method stub } //按下移动 @Override public void mouseDragged(MouseEvent e) { // TODO Auto-generated method stub x=e.getX()-20; y=e.getY()-20; repaint(); } @Override public void mouseMoved(MouseEvent e) { // TODO Auto-generated method stub x=e.getX()-20; y=e.getY()-20; repaint(); } }