msgpanel.java

“贪食蛇”游戏小程序设计与制作。实现贪食蛇游戏的运行

import java.awt.*;
import java.applet.Applet;
import java.awt.event.*;
class MsgPanel extends Applet implements MouseListener{
	Label msg=new Label("欢迎进入贪食蛇游戏");
	Label go=new Label("点击进入");
	MainFrame mf;
	Images im=new Images();
	MsgPanel(MainFrame mf){
		this.mf=mf;
		msg.setFont(new Font("楷体",Font.BOLD,36));
		msg.setForeground(Color.blue);
		msg.setAlignment(Label.CENTER);
		go.setFont(new Font("宋体",Font.BOLD,20));
		go.setForeground(Color.green);
		go.setAlignment(Label.CENTER);
		this.setLayout(null);
		msg.setBounds(0,50,450,50);
		go.setBounds(0,300,450,50);
		add(msg);add(go);
		go.addMouseListener(this);
			im.setBounds(150,100,150,168);
			this.add(im); 
	}

	MsgPanel(MainFrame mf,String s){
		this(mf);
		msg.setText(s);
		go.setText("再来一次");
	}
class Images extends Panel{
	Image t;
	Toolkit tool;
	Images(){
		tool=this.getToolkit();
		t=tool.getImage("3.jpg");
			
	}
	public void paint(Graphics g){
			
		g.drawImage(t,0,0,this);
			
	} 
} 
	public void mouseReleased(MouseEvent e){
	}
	public void mousePressed(MouseEvent e){
	}
	public void mouseExited(MouseEvent e){
		go.setForeground(Color.green);
	}
	public void mouseEntered(MouseEvent e){
		go.setForeground(Color.red);
	}
	public void mouseClicked(MouseEvent e){
		mf.start();
	}

}