Java打地鼠小游戏

随便做了个小游戏，很简单，问题可能也有蛮多。主要是学习一些图新界面，和线程的的知识，请多指教，大家可以继续改进
package HitMouse;

import java.awt.Cursor;
import java.awt.Font;
import java.awt.Image;
import java.awt.Point;
import java.awt.Toolkit;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;
import java.sql.Time;
import java.util.Random;

import javax.swing.BorderFactory;
import javax.swing.ImageIcon;
import javax.swing.JDialog;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.SwingConstants;
import javax.swing.Timer;
import javax.swing.border.BevelBorder;
import javax.swing.event.AncestorEvent;
import javax.swing.event.AncestorListener;

public class HitMouse extends JFrame implements ActionListener, MouseListener {
private static final JLabel gradeLabel = null;
String dir=”./images/”;
JLabel jlbMouse;
Timer time;//定时器
Random orandom;//随机数
int delay=1000;
int grade=0,timeHit=0,timeshow=0;
JLabel labelGree;
JLabel labelShow;
JLabel labelHit;
boolean isHit=false;
private int timeShow;
public HitMouse() {
//主框架
this.setTitle(“打地鼠游戏”);
this.setLocation(200, 200);
this.setSize(438, 375);
this.setResizable(false);
//this.getContentPane().setLayout(null);//与面板显示冲突
this.setDefaultCloseOperation(EXIT_ON_CLOSE);

    setBak();//背景函数
    //设置光标
    Toolkit tk=Toolkit.getDefaultToolkit();//返回一个Tookit对象
    Image myImage=tk.createImage(dir+"chui1.png");
    Cursor myCursor=tk.createCustomCursor(myImage, new Point(10, 10), "XXX");
    //加入光标
    mySetCursor(1);

    //加入地鼠图片
    ImageIcon lbImage=new ImageIcon(dir+"dishu.png");
    jlbMouse=new JLabel(lbImage);
    jlbMouse.setLocation(100, 100);
    jlbMouse.setSize(80, 80);
    this.getContentPane().add(jlbMouse);
    jlbMouse.addMouseListener(this);
    jlbMouse.setVisible(false);

    time =new Timer(delay, this);
    orandom=new Random();
    time.start();


    //用一个面板  来加 出现次数 当前等级 打击次数等···
    JPanel jpanel=new JPanel();
    jpanel.setBorder(BorderFactory.createBevelBorder(BevelBorder.LOWERED));
    jpanel.setBounds(0, 0, 438,375);
    jpanel.setOpaque(false);
    this.getContentPane().add(jpanel);

    //出现次数
    labelShow = new JLabel("0",new ImageIcon(dir+"chuxiancishu.png"),SwingConstants.CENTER);
    labelShow.setFont(new Font("幼圆",Font.BOLD,20));
    labelShow.setSize(146, 40);
    jpanel.add(labelShow);


    //打击次数 
    labelHit = new JLabel("0",new ImageIcon(dir+"dazhongcishu.png"),SwingConstants.CENTER);
    labelHit.setFont(new Font("幼圆",Font.BOLD,20));
    labelHit.setSize(146, 40);
    jpanel.add(labelHit);

    labelGree= new JLabel("0",new ImageIcon(dir+"dangqiandengji.png"),SwingConstants.CENTER);
    labelGree.setFont(new Font("幼圆",Font.BOLD,20));
    labelGree.setSize(146, 40);
    jpanel.add(labelGree);


    this.setVisible(true);



}

private void setBak() {
    ((JPanel)(this.getContentPane())).setOpaque(false);//设置透明度
    ImageIcon bgimage=new ImageIcon(dir+"beijing.jpg");
    JLabel bglabel=new JLabel(bgimage);
    bglabel.setBounds(0, 0, bgimage.getIconWidth(),  bgimage.getIconHeight());
    //this.add(bglabel);//这样不行要分成来显示图片
     this.getLayeredPane().add(bglabel, new Integer(Integer.MIN_VALUE));//设置权限,
     //public JLayeredPane getLayeredPane()返回此窗体的 layeredPane 对象。 允许分层
}

public static void main(String[] args) {
    HitMouse hitmouse=new HitMouse();

}

@Override
public void actionPerformed(ActionEvent e) {
    int ran = orandom.nextInt(9);

    switch(ran){
    case 0:
        jlbMouse.setLocation(56, 63);break;
    case 1:
        jlbMouse.setLocation(322, 204);break;
    case 2:
        jlbMouse.setLocation(185, 204);break;
    case 3:
        jlbMouse.setLocation(48, 203);break;
    case 4:
        jlbMouse.setLocation(298, 133);break;
    case 5:
        jlbMouse.setLocation(162, 133);break;
    case 6:
        jlbMouse.setLocation(22, 133);break;
    case 7:
        jlbMouse.setLocation(311, 63);break;
    case 8:
        jlbMouse.setLocation(186, 63);break;
    }
    timeshow++;
    labelShow.setText(""+timeshow);
    jlbMouse.setVisible(true);
    ImageIcon imageIconDishu = new ImageIcon(dir+"dishu.png");
    jlbMouse.setIcon(imageIconDishu);
    isHit=false;

    //游戏玩输的处理
            if(timeshow>15){
                time.stop();
                int a = JOptionPane.showConfirmDialog(this, "很遗憾，您输了，不服，重来吗","您输了!!!",JOptionPane.YES_NO_OPTION);
                if(a==JOptionPane.YES_OPTION){
                    mySetCursor(1);
                    delay=1000;
                    grade = 1;
                    timeshow=0;
                    timeHit=0;
                    gradeLabel.setText(""+grade);
                    labelShow.setText(""+timeshow);
                labelHit.setText(""+timeHit);   
                    time.start();
                }
            }
}

@Override
public void mouseClicked(MouseEvent e) {
}

@Override
public void mousePressed(MouseEvent e) {
    //设置光标
  mySetCursor(2);

    if(e.getSource()==jlbMouse&& !isHit){
    isHit=true; 
    timeHit++;
    labelHit.setText(""+timeHit);
    ImageIcon datouimage=new ImageIcon(dir+"datou.png");
    jlbMouse.setIcon(datouimage);//换图片 接口
    this.setVisible(true);}

    //游戏规则
    if(timeHit>8){
        delay-=500;
        if(delay<0){
            jlbMouse.setVisible(false);
            time.stop();
            int a = JOptionPane.showConfirmDialog(this, "您打通关了，要重新来吗?","恭喜!!!",JOptionPane.YES_NO_OPTION);
            if(a==JOptionPane.YES_OPTION){
                grade = 0;
                delay=1000;
            }else{
                System.exit(0);
            }
        }
        grade++;
        timeHit=0;
        timeshow=0;
        time.stop();

        jlbMouse.setVisible(false);
        mySetCursor(1);//锤子复位
        JOptionPane.showConfirmDialog(this,"进入第"+grade+"关 加油！","升级",JOptionPane.CLOSED_OPTION);

        labelShow.setText(""+timeshow);
        labelHit.setText(""+timeHit);
        labelGree.setText(""+grade);


        time.start();
        }
    }

@Override
public void mouseReleased(MouseEvent e) {
    mySetCursor(1);
}

@Override
public void mouseEntered(MouseEvent e) {
}

@Override
public void mouseExited(MouseEvent e) {
}
 private void mySetCursor(int i) {
     Toolkit tk = Toolkit.getDefaultToolkit();
     Image image;
     if(i==1){
         image= tk.createImage(dir+"chui1.png");
     }else{
         image= tk.createImage(dir+"chui2.png");
     }
     Cursor myCursor = tk.createCustomCursor(image, new Point(10,10), "yyy");
     this.setCursor(myCursor);

 }

}