java打地鼠游戏

学习java中的图片处理

import java.awt.Cursor;
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.util.Random;

import javax.swing.ImageIcon;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JMenu;
import javax.swing.JMenuBar;
import javax.swing.JMenuItem;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.Timer;

public class HitMouse extends JFrame implements ActionListener,MouseListener{
	boolean isOver=false;//设置标记，游戏是否结束
	private String dir="./images/";//图片目录，当前工程下
	JLabel jlbMouse;//地鼠
	Timer timer;//时间定时器
	Random random;//随机数对象，即生成地鼠的位置
	int delay=1100;//延迟时间
	Toolkit tk;
	Image image;
	Cursor myCursor;
	JLabel showNum,currentGrade,hitNum;
	int showNumber=0,hitNumber=0,currentGrades=1;

	public HitMouse(){
		super("打地鼠");
		this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		this.setSize(449, 395);
		this.setLocationRelativeTo(null);//设置窗口在屏幕中心
		setbackground();//设置背景
		this.getContentPane().setLayout(null);//设置框架布局模式为空，只有这样，才能知道图片的真正位置
		//设置鼠标为锤子图片
		tk = Toolkit.getDefaultToolkit();
		image = tk.createImage(dir+"chui1.png");
		myCursor = tk.createCustomCursor(image, new Point(10,10), "xxx");
		this.setCursor(myCursor);

		setMessage();//设置一些提示信息
		//在背景图片的基础上设置地鼠图片
		ImageIcon imageMouse = new ImageIcon(dir+"dishu.png");
		jlbMouse = new JLabel(imageMouse);
		jlbMouse.setSize(80,80);
		this.getContentPane().add(jlbMouse);
		jlbMouse.setVisible(false);
		jlbMouse.addMouseListener(this);//添加鼠标监听
		//定时器
		timer = new Timer(delay,this);
		random = new Random();
		timer.start();

		addMenu();//添加菜单

		this.setResizable(false);//设置窗口大小不能改变
		this.setVisible(true);
	}

	private void addMenu() {
		JMenuBar menubar = new JMenuBar();
		this.setJMenuBar(menubar);
		JMenu game = new JMenu("游戏");
		JMenuItem jitemNew = new JMenuItem("新游戏");
		jitemNew.setActionCommand("new");
		jitemNew.addActionListener(this);
		JMenuItem jitemPause = new JMenuItem("暂停");
		jitemPause.setActionCommand("pause");
		jitemPause.addActionListener(this);
		JMenuItem jitemExit = new JMenuItem("退出");
		jitemExit.setActionCommand("exit");
		jitemExit.addActionListener(this);
		game.add(jitemNew);
		game.add(jitemPause);
		game.addSeparator();//菜单里设置分隔线
		game.add(jitemExit);
		menubar.add(game);
	}

	private void setbackground() {
		((JPanel)(this.getContentPane())).setOpaque(false);//如果为 true，则该组件绘制其边界内的所有像素。否则该组件可能不绘制部分或所有像素，从而允许其底层像素透视出来。
		ImageIcon bgImage = new ImageIcon("images/beijing.jpg");
		JLabel bgLabel = new JLabel(bgImage);
		bgLabel.setBounds(0, 25, bgImage.getIconWidth(), bgImage.getIconHeight());
		this.getLayeredPane().add(bgLabel, new Integer(Integer.MIN_VALUE));//设置背景图片的层次最低

	}

	private void setMessage() {
		ImageIcon showNumb = new ImageIcon(dir+"chuxiancishu.png");
		JLabel showLabel = new JLabel(showNumb);
		showLabel.setBounds(8, 8, 92, 80);
		this.getContentPane().add(showLabel);
		showNum = new JLabel("0");
		showNum.setBounds(110, 8, 92, 80);
		this.getContentPane().add(showNum);

		ImageIcon hitNumb = new ImageIcon(dir+"chuxiancishu.png");
		JLabel hitLabel = new JLabel(hitNumb);
		hitLabel.setBounds(148, 8, 92, 80);
		this.getContentPane().add(hitLabel);
		hitNum = new JLabel("0");
		hitNum.setBounds(251, 8, 92, 80);
		this.getContentPane().add(hitNum);

		ImageIcon grade = new ImageIcon(dir+"dangqiandengji.png");
		JLabel gradeLabel = new JLabel(grade);
		gradeLabel.setBounds(288, 8, 92, 80);
		this.getContentPane().add(gradeLabel);
		currentGrade = new JLabel("1");
		currentGrade.setBounds(391, 8, 92, 80);
		this.getContentPane().add(currentGrade);
	}

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

	public void actionPerformed(ActionEvent e) {
		//对菜单项注册事件监听
		if(e.getSource() instanceof JMenuItem){
			menuItemFun(e);
		}

		int ran=random.nextInt(9);//随机生成一个0~9（不包括9）的随机数
		ImageIcon imageMouse = new ImageIcon(dir+"dishu.png");//保证每次随机生成的地鼠图片都是为没被打时的图片
		jlbMouse.setIcon(imageMouse);
		switch(ran){
		case 0:jlbMouse.setLocation(55, 63);break;
		case 1:jlbMouse.setLocation(321, 204);break;
		case 2:jlbMouse.setLocation(184, 204);break;
		case 3:jlbMouse.setLocation(47, 203);break;
		case 4:jlbMouse.setLocation(297, 133);break;
		case 5:jlbMouse.setLocation(161, 133);break;
		case 6:jlbMouse.setLocation(21, 133);break;
		case 7:jlbMouse.setLocation(310, 63);break;
		case 8:jlbMouse.setLocation(185, 63);break;
		}

		jlbMouse.setVisible(true);

		showNumber++;
		showNum.setText(""+showNumber);

		if( !gamePlan() ){//判断游戏是否结束，并显示游戏进程
			timer.stop();
		}

	}
	//监听菜单功能功能
	private void menuItemFun(ActionEvent e) {
		if (e.getActionCommand().equalsIgnoreCase("new")) {//新游戏
			timer.stop();
			showNumber=0;
			hitNumber=0;
			currentGrades=1;
			delay=1000;
			isOver=false;
			showNum.setText(""+showNumber);
			hitNum.setText(""+hitNumber);
			currentGrade.setText(""+currentGrades);
			timer = new Timer(delay,this);
			timer.start();
		}
		if (e.getActionCommand().equalsIgnoreCase("exit")) {//退出
			System.exit(EXIT_ON_CLOSE);
		}

		if (e.getActionCommand().equalsIgnoreCase("pause")) {//暂停
			timer.stop();
			JOptionPane.showMessageDialog(this, "继续请按“确定”");
			timer.start();
		}
	}

	private boolean gamePlan() {
		if(showNumber-hitNumber > 8){
			JOptionPane.showMessageDialog(this, "Game Over !");
			isOver=true;
			return false;
		}
		if(hitNumber > 5){
			hitNumber=0;
			showNumber=0;
			currentGrades++;
			if(delay>100){
				delay-=50;
			}else if(delay>=500){
				delay=500;
			}
			timer.setDelay(delay);
			hitNum.setText(""+hitNumber);
			showNum.setText(""+showNumber);
			currentGrade.setText(""+currentGrades);
		}
		return true;
	}

	public void mouseClicked(MouseEvent e) {

	}

	public void mousePressed(MouseEvent e) {
		if(isOver){
			return ;
		}
		image = tk.createImage(dir+"chui2.png");
		myCursor = tk.createCustomCursor(image, new Point(10,10), "xxx");
		this.setCursor(myCursor);//鼠标按下时，鼠标显示打下去的图片，模拟打的动作
		//如果打中地鼠，则地鼠换成被打中的图片，模拟地鼠被打
		if(e.getSource()==jlbMouse){
			ImageIcon imageIconHit = new ImageIcon(dir+"datou.png");
			jlbMouse.setIcon(imageIconHit);
			jlbMouse.setVisible(true);
		}

		hitNumber++;
		hitNum.setText(""+hitNumber);
	}

	public void mouseReleased(MouseEvent e) {
		if(isOver){
			return ;
		}
		//当鼠标放松以后，鼠标变回原来没按下时的图片
		image = tk.createImage(dir+"chui1.png");
		myCursor = tk.createCustomCursor(image, new Point(10,10), "xxx");
		this.setCursor(myCursor);
	}

	public void mouseEntered(MouseEvent e) {

	}

	public void mouseExited(MouseEvent e) {

	}

}