clientapplet.java

互联网多人联机对垒游戏-分服务端、客户端

import javax.swing.JApplet;
import javax.swing.JButton;
import javax.swing.JPanel;
import java.awt.Graphics;
import java.awt.Color;
import javax.swing.JLabel;
import java.awt.Image;
import javax.swing.ImageIcon;
import java.awt.Toolkit;
import java.awt.Cursor;
import java.awt.Point;
import java.awt.MediaTracker;
import java.net.Socket;
import java.io.PrintStream;
import java.io.InputStreamReader;
import java.io.BufferedReader;
import java.net.UnknownHostException;
import java.io.IOException;
import java.util.StringTokenizer;
import java.awt.event.ActionListener;
import java.awt.event.ActionEvent;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.event.MouseListener;
import java.awt.event.MouseEvent;
import javax.swing.JOptionPane;
import java.awt.GridLayout;
import java.awt.GridBagLayout;
import java.awt.GridBagConstraints;
import javax.swing.JScrollPane;
import javax.swing.JTextArea;
import javax.swing.JTextField;
import javax.swing.JScrollBar;
import java.awt.event.KeyListener;
import java.awt.event.KeyEvent;
import java.net.URL;
public class ClientApplet extends JApplet{
	JPanel jPane=new JPanel();
	//
	Image tableImage,manImage,meImage;
	Cursor meCursor;  //主人光标
	LoginPane[] loginPane=new LoginPane[2];  //初始化两张台,台号从0开始编号.
	//
	int win_w;
	int win_h;
	//
	int serverInPort=6817;  //服务器的输入端口号
	int serverOutPort=6818;  //服务器的输出端口号
	String serverName;  //服务器名字
	Socket outSocket;  //客户端用于输出的socket套接字
	Socket inSocket;  //客户端用于输入的socket套接字
	PrintStream writer;  //客户端输出流
	BufferedReader reader;  //客户端输入缓冲流
	//
	ReadThread readThread;  //客户端读数据线程
	RefreshThread refreshThread; //客户端台面刷新线程
	//
	int currentTable=-1;  //当前台号
	int currentChair=-1;  //当前坐椅号
	//
	int registerTable=-1;  //正申请的台号
	int registerChair=-1;  //正申请的椅子号
	//
	PlayPane playPane;  //对弈面板

	public void init(){
		win_w=getSize().width;
		win_h=getSize().height;
		//
		MediaTracker tracker=new MediaTracker(this);
		tableImage=getImage(getCodeBase(),"image/table.jpg");
		tracker.addImage(tableImage,1);
		manImage=getImage(getCodeBase(),"image/man.gif");
		tracker.addImage(manImage,2);
		meImage=getImage(getCodeBase(),"image/me.gif");
		tracker.addImage(meImage,3);
		Image curImage=getImage(getCodeBase(),"image/mecursor.jpg");  //光标图标
		tracker.addImage(curImage,4);
		try{
			tracker.waitForAll();  //启动和等待图象加载完毕.
		}catch(InterruptedException e){
			System.out.println("加载图象文件失败");
		}
		//光标设置
		meCursor=Toolkit.getDefaultToolkit().createCustomCursor(curImage,new Point(0,0),"me");
		//
		GridLayout gLayout=new GridLayout(2,1,0,5);  //2行1列网格布局(垂直间隙为5)
		jPane.setLayout(gLayout);
		jPane.setBackground(Color.blue);  //蓝色背景(实际使棋台之间的间隙为蓝色)
		//
		loginPane[0]=new LoginPane(0);  //创建第1张棋台(索引号0)
		jPane.add(loginPane[0]);
		//
		loginPane[1]=new LoginPane(1);  //创建第2张棋台(索引号1)
		jPane.add(loginPane[1]);
		//
		getContentPane().add(jPane);  
		//
		serverName=getCodeBase().getHost();
		try{
			outSocket=new Socket(serverName,serverInPort); //注意客户端的out相当于服务器的in。
			inSocket=new Socket(serverName,serverOutPort);
			writer=new PrintStream(outSocket.getOutputStream());
			reader=new BufferedReader(new InputStreamReader(inSocket.getInputStream()));
		}catch(UnknownHostException e){
			System.out.println("创建客户端socket失败.");
		}catch(IOException e){
			System.out.println("创建客户端输入输出流失败.");
		}
		//
		readThread=new ReadThread();  //启动读数据线程
		readThread.start();
		//
		refreshThread=new RefreshThread();  //启动刷新台面线程
		refreshThread.start();
	}

	public void destroy(){  //applet被摧毁
		writer.println("exit:"+currentTable+","+currentChair);  //向服务器发送退出信息
		refreshThread.refreshStop=true;  //使刷新线程的内部循环立即终止
		refreshThread=null; //停止刷新线程
		try{
			reader.close();
			writer.close();
			inSocket.close();
			outSocket.close();
		}catch(IOException e){}
		readThread=null;  //停止读数据线程
	}	
	//游戏台类
	class LoginPane extends JPanel implements ActionListener{
		ChairButton[] chairButton=new ChairButton[2];  //充当椅子的按钮
		JLabel[] imageLabel=new JLabel[2];  //显示人员坐姿的图片标签
		JButton playButton=new JButton("开始对弈");
		JLabel tableLabel=new JLabel(new ImageIcon(tableImage));  //显示棋桌的图片标签
		LoginPane(int tableNum){
			setBackground(Color.green);  //绿色背景
			setLayout(null);
			chairButton[0]=new ChairButton(tableNum,0);  //从0开始编号
			chairButton[0].setText("上方座位");
			chairButton[1]=new ChairButton(tableNum,1);
			chairButton[1].setText("下方座位");
			//
			imageLabel[0]=new JLabel();
			imageLabel[1]=new JLabel();
			//
			add(chairButton[0]);
			add(imageLabel[0]);
			add(chairButton[1]);
			add(imageLabel[1]);
			add(playButton); 
			add(tableLabel); 
			//
			chairButton[0].setBounds(52,10,85,40);
			imageLabel[0].setBounds(50,10,85,40);
			chairButton[1].setBounds(52,160,85,40);
			imageLabel[1].setBounds(50,160,85,40);
			playButton.setBounds(154,70,85,40);
			tableLabel.setBounds(40,58,105,93);
			//
			chairButton[0].setVisible(false);
			chairButton[1].setVisible(false);
			playButton.setEnabled(false);
			//添加按钮鼠标单击事件监听器
			chairButton[0].addActionListener(this);
			chairButton[1].addActionListener(this);
			playButton.addActionListener(this);
			
		}
		public void actionPerformed(ActionEvent e){
			Object srcObject=e.getSource();
			if(srcObject==chairButton[0]){
				registerTable=chairButton[0].tableNum;  //记录申请的台号
				registerChair=chairButton[0].chairNum;  //记录申请的椅子号
				writer.println("logout:"+currentTable+","+currentChair); //先注销上次占用的座位
				writer.println("login:"+chairButton[0].tableNum+","+chairButton[0].chairNum);  //申请该座位入坐
			}
			else if(srcObject==chairButton[1]){
				registerTable=chairButton[1].tableNum;  //记录申请的台号
				registerChair=chairButton[1].chairNum;  //记录申请的椅子号
				writer.println("logout:"+currentTable+","+currentChair); //先注销上次占用的座位
				writer.println("login:"+chairButton[1].tableNum+","+chairButton[1].chairNum);  //申请该座位入坐
			}
			else if(srcObject==playButton){
				writer.println("play!");  //向对方请求对弈
			}
		}
	}
	//椅子类
	class ChairButton extends JButton{
		int tableNum;  //台号
		int chairNum;  //椅子号
		ChairButton(int tNum,int cNum){
			tableNum=tNum;
			chairNum=cNum;
		}
	}
	//游戏面板类
	class PlayPane extends JPanel{
		ChessPane chessPane=new ChessPane(); //棋盘面板
		MsgPane msgPane=new MsgPane();  //聊天消息面板
		ControlPane controlPane=new ControlPane();  //游戏控制面板
		GridBagLayout gridBagLayout=new GridBagLayout();  //3行1列的网格包布局
		GridBagConstraints gbc=new GridBagConstraints();
		PlayPane(){
			setLayout(gridBagLayout);
			//添加棋盘面板
			gbc.gridx=0;
			gbc.gridy=0;
			gbc.weightx=100;
			gbc.weighty=60;
			gbc.fill=GridBagConstraints.BOTH;
			gridBagLayout.setConstraints(chessPane,gbc);
			add(chessPane);
			//添加聊天消息面板
			gbc.gridx=0;
			gbc.gridy=1;
			gbc.weightx=100;
			gbc.weighty=30;
			gbc.fill=GridBagConstraints.BOTH;
			gridBagLayout.setConstraints(msgPane,gbc);
			add(msgPane);
			//添加游戏控制面板
			gbc.gridx=0;
			gbc.gridy=2;
			gbc.weightx=100;
			gbc.weighty=10;
			gbc.fill=GridBagConstraints.BOTH;
			gridBagLayout.setConstraints(controlPane,gbc);
			add(controlPane);
		}
	}
	//棋盘面板类
	class ChessPane extends JPanel implements MouseListener{  //棋盘面板
		int chessBoard_w;  //正方形棋盘宽度
		int chessBoard_x;  //棋盘的左上角位置坐标
		int chessBoard_y;
		int cell_w;  //正方形棋盘方格宽度
		boolean canGo=false;  //可否走棋的标志
		int[] chessOn=new int[9];  //记录棋盘9个格子落子情况(0--未落子,1自己落子,2对方落子).数组元素初始化后均为0.
		//
		Image ovalImage,crossImage;  //显示在棋盘格中的圆形和交叉图象
		ChessPane(){
			chessBoard_w=160;
			chessBoard_x=(win_w-chessBoard_w)/2;
			chessBoard_y=30;
			cell_w=chessBoard_w/3;
			//
			MediaTracker tracker=new MediaTracker(this);
			ovalImage=getImage(getCodeBase(),"image/oval.gif");
			tracker.addImage(ovalImage,1);
			crossImage=getImage(getCodeBase(),"image/cross.gif");
			tracker.addImage(crossImage,2);
			try{
				tracker.waitForAll();  //启动和等待图象加载完毕.
			}catch(InterruptedException e){
				System.out.println("加载图象文件失败");
			}
			//
			addMouseListener(this);
		}

		public void paint(Graphics g){
			Graphics2D g2D=(Graphics2D)g;
			g2D.setBackground(Color.black);  //只有Graphics2D提供了setBackground方法
			g2D.clearRect(0,0,win_w,win_h);
			g.setColor(Color.yellow);
			g.drawRect(chessBoard_x,chessBoard_y,chessBoard_w,chessBoard_w);
			for(int i=1;i<=2;i++){  //画棋盘中间的两条横线
				g.drawLine(chessBoard_x,chessBoard_y+i*cell_w,chessBoard_x+chessBoard_w,chessBoard_y+i*cell_w);
			}
			for(int j=1;j<=2;j++){  //画棋盘中间的两条竖线
				g.drawLine(chessBoard_x+j*cell_w,chessBoard_y,chessBoard_x+j*cell_w,chessBoard_y+chessBoard_w);
			}
			for(int m=1;m<=3;m++){  //判断是否绘制棋子
				for(int n=1;n<=3;n++){  //第m行、第n列的棋格
					if(chessOn[3*(m-1)+n-1]==1){  //自己落了棋子,显示一个圆形。
						g.drawImage(ovalImage,chessBoard_x+(n-1)*cell_w,chessBoard_y+(m-1)*cell_w,this);
					}
					else if(chessOn[3*(m-1)+n-1]==2){  //对方落了棋子，显示一个交叉。
						g.drawImage(crossImage,chessBoard_x+(n-1)*cell_w,chessBoard_y+(m-1)*cell_w,this);
					}
				}
			}
		}		
		
		public void mouseReleased(MouseEvent e){
			if(canGo){  //是否可走棋
				int x=e.getX();
				int y=e.getY();
				int cellIndex;  //单击的棋格索引
				cellIndex=inWhatCell(x,y); //取得落下的棋格
				if(cellIndex!=-1 ){ //棋子落在棋盘内
					if(chessOn[cellIndex]==0){  //该格还没有落子
						canGo=false;  //等待对方下子
						chessOn[cellIndex]=1;  //设置该棋格已落子(1表示自己落子,2表示对方落子.)
						writer.println("go:"+cellIndex); //将该步棋发给对方显示出来
						repaint();  //刷新棋盘面板
						if(isChessOnLine()){  //3子同一线,自己嬴了.
							writer.println("win:"+cellIndex); //发送自己嬴棋信息给服务器(转对弈方)  
							JOptionPane.showMessageDialog(null,"恭喜您，您嬴了对方!","系统提示",JOptionPane.INFORMATION_MESSAGE); //弹出提示对话框
							playPane.controlPane.restartButton.setEnabled(true);  //设置"重新对弈"按钮有效
						}
						else{  //当前并没有3子处于一条直线上(和或负)
							if(isChessFull()){  //棋盘满了(双方都不能再下棋子),可断定双方打和.
								writer.println("peace:"+cellIndex); //通知对方打和
								JOptionPane.showMessageDialog(null,"双方打和，未分胜负.","系统提示",JOptionPane.INFORMATION_MESSAGE); //弹出提示对话框
								playPane.controlPane.restartButton.setEnabled(true);  //设置"重新对弈"按钮有效
							}
						}
					}	
				}
			}	
		}

		public void mouseClicked(MouseEvent e){}
		public void mouseEntered(MouseEvent e){}
		public void mouseExited(MouseEvent e){}
		public void mousePressed(MouseEvent e){}
		
		public int inWhatCell(int x,int y){
			int cell_x,cell_y; //第i行、第j列棋格的右下角坐标
			for(int i=1;i<=3;i++){
				for(int j=1;j<=3;j++){