omokclient.java

一个用于网络对战的五子棋客户端程序

/*
   作者:黄渊 220300124   陈烨 220300123   参考资料:JAVA编程基础、应用实例
*/
import java.awt.*;
import java.net.*;
import java.io.*;
import java.util.*;
import java.awt.event.*;
import java.awt.geom.*;
import javax.swing.*;

class OmokBoard extends Canvas{                          //五子棋盘类
	public static final int BLACK=1,WHITE=-1;           //黑白子常数
	private int[][] map;                                 //map数组
	private int size;                                    //棋盘大小
	private int cell;                                    //棋盘单元格大小
	private String info="游戏终止";                      //游戏状态字符串
	private int color=BLACK;
	
	//若为true,则表示用户可以放置棋子
	//若为false,则表示用户不可放置棋子
	private boolean enable=false;
	
	private boolean running=false;                       //显示游戏是否运行的变量
	private PrintWriter writer;                          //向对方棋手传递信息的流
	private Graphics gboard,gbuff;                     
	private Image buff;
	
	
	OmokBoard(int s,int c){                              //五子棋盘的构造函数（s=15,c=30)
		this.size=s;
		this.cell=c;
		
		map=new int[size+2][];                           //确定map函数的大小
		for(int i=0;i<map.length;i++)
		map[i]=new int[size+2];
		
		setBackground(new Color(150,200,254));           //设定五子棋盘的背景色
		setSize(size*(cell+1)+size,size*(cell+1)+size);  //计算棋盘的大小
		
		//棋盘鼠标事件
		addMouseListener(new MouseAdapter(){
			public void mousePressed(MouseEvent me){     //鼠标按下事件  
				if(!enable)return;                        
				
				//将鼠标坐标转换为map坐标
				int x=(int)Math.round(me.getX()/(double)cell);
				int y=(int)Math.round(me.getY()/(double)cell);
				
				//如果不是在下棋区内的坐标，则退出事件
				if(x==0||y==0||x==size+1||y==size+1)return;
				
				//如果不是在下棋区内的坐标，但该单位已经有子了，照样退出按下鼠标事件
				if(map[x][y]==BLACK||map[x][y]==WHITE)return;
				
				//向对方棋手发送棋子坐标的信息
				writer.println("[STONE]"+x+" "+y);
				//给坐标发颜色，显现出棋子来
				map[x][y]=color;
				
				//检查获胜与否
				if(check(new Point(x,y),color)){
					info="获胜";
					writer.println("[WIN]");
				}
				
				else info="等待对方落子";
				repaint();             //绘制棋盘
				
				//用户不可下子
				//若对手下完子，则将enable的值改成true,此时用户方可落子
				enable=false;
			}
		});
	}
	
	
	public boolean isRunning(){                             //获取游戏的运行状态
		return running;
	}
	
	public void startGame(String col){                      //开始游戏       
		running=true;
		if(col.equals("BLACK")){                            //若黑棋被选中
			enable=true;
			color=BLACK;
			info=" 开始游戏。。。请落子";
		}
		else{                                               //选种百棋
			enable=false; 
			color=WHITE;
			info="开始游戏。。。请等待对方落子"; 
		}
	}
	
	public void stopGame(){                                  //停止游戏
		reset();                                             //初始化棋盘
		writer.println("[STOPGAME]");                        //向对手发信息
		enable=false;
		running=false;
	}
	
	public void putOpponent(int x,int y){
		map[x][y]=-color;
		info="对手已经落子，请落子";
		repaint();
	}
	
	public void setEnable(boolean enable){
		this.enable=enable;
	}
	
	public void setWriter(PrintWriter writer){
		this.writer=writer;
	}
	
	public void update(Graphics g){                            //调用repaint()时自动调用
		paint(g);                                              //调用paint()方法
	}
	public void paint(Graphics g){                             //绘制画面
  		if(gbuff==null){
			buff=createImage(getWidth(),getHeight());
			gbuff=buff.getGraphics();
		}
		drawBoard(g);                                          //绘制棋盘
	}
	
	public void reset(){                                       //初始化棋盘
		for(int i=0;i<map.length;i++)
		for(int j=0;j<map[i].length;j++)
		map[i][j]=0;
		info="游戏终止";
		repaint();
	} 
	
	private void drawLine(){ 
	    String line = "a        b        c       d        e        f        g        h         i         j        k         l        m       n        o";
        char [] rowNum1 = {'1','2','3','4','5','6','7','8','9'};
        char [] rowNum2={'1','0','1','1','1','2','1','3','1','4','1','5'};                                   //在棋盘上画线
		gbuff.setColor(Color.black);
		gbuff.drawString(line,25,15);
		for(int i=0;i<9;i++){
            gbuff.drawChars(rowNum1,i,1,10,35+i*30);
        }
        for(int i=9,j=0;i<15;i++,j+=2){
            gbuff.drawChars(rowNum2,j,2,10,35+i*30);
        }
		for(int i=1;i<=size;i++){
			gbuff.drawLine(cell,i*cell,cell*size,i*cell);
			gbuff.drawLine(i*cell,cell,i*cell,cell*size);
		}
	    gbuff.drawLine(25,25,25,455);
	    gbuff.drawLine(25,25,455,25);
	    gbuff.drawLine(455,25,455,455);
	    gbuff.drawLine(25,455,455,455);
	}
	
	private void drawBlack(int x,int y){                         //在（x,y)上绘制黑棋
		Graphics2D gbuff=(Graphics2D)this.gbuff;
		gbuff.setColor(Color.black);
		gbuff.fillOval(x*cell-cell/2,y*cell-cell/2,cell,cell);
	}
	private void drawWhite(int x,int y){                         //在（x,y)上绘制白棋
		gbuff.setColor(Color.white);
		gbuff.fillOval(x*cell-cell/2,y*cell-cell/2,cell,cell);
	}
	private void drawStones(){                                   //绘制map中的所有棋子
		for(int x=1;x<=size;x++)
		for(int y=1;y<=size;y++){
			if(map[x][y]==BLACK)
			drawBlack(x,y);
			else if(map[x][y]==WHITE)
			drawWhite(x,y);
		}
	}
	
	synchronized private void drawBoard(Graphics g){              //绘制棋盘
		gbuff.clearRect(0,0,getWidth(),getHeight());
		drawLine();
		drawStones();
		gbuff.setColor(Color.red);
		gbuff.drawString(info,30,470);
		g.drawImage(buff,0,0,this);
	}
	
	private boolean check(Point p,int col){                       //获胜判定
		if(count(p,1,0,col)+count(p,-1,0,col)==4)
		return true;
		if(count(p,0,1,col)+count(p,0,-1,col)==4)
		return true;
		if(count(p,-1,-1,col)+count(p,1,1,col)==4)
		return true;
		if(count(p,1,-1,col)+count(p,-1,1,col)==4)
		return true;
		return false;
	}
	
	private int count(Point p,int dx,int dy,int col){
		int i=0;
		for(;map[p.x+(i+1)*dx][p.y+(i+1)*dy]==col;i++);
		return i;
	}
	}
	public class OmokClient extends Frame implements Runnable,ActionListener{
		private TextArea msgView=new TextArea("",1,1,1);       //显示消息的多行文本框
		private TextField sendBox=new TextField("");           //记录待发消息的对话框
		private TextField nameBox=new TextField();             //用户名对话框
		private TextField roomBox=new TextField("");          //房间号对话框
		
		private Label pInfo=new Label("待机室：名");
	    
	    private java.awt.List pList=new java.awt.List();  //显示用户名单列表
	    //private Button computerButton=new Button("人机对战");     
	    private Button startButton=new Button("准备");
	    private Button stopButton=new Button("弃权");
	    private Button enterButton=new Button("入场");
     	private Button exitButton=new Button("去待机室");
     	
     	//
     	private Label infoView=new Label("< JAVA 五子棋 >",1);
     	
     	private OmokBoard board=new OmokBoard(15,30);           //棋盘对象
     	private BufferedReader reader;                          //输入流
     	private PrintWriter writer;                             //输出流
     	private Socket socket;                                  //套接字
     	private int roomNumber=-1;                              //房间号
     	private String userName=null;                           //用户名                       
     	public OmokClient(String title){                        //构造函数  
     		super(title);
     		setLayout(null);
     		this.setResizable(false);                                    //不使用任何布局
     		
     		//创建并排列各种组件
     		msgView.setEditable(false);
     		infoView.setBounds(10,30,480,30);
     		infoView.setBackground(new Color(150,200,254));
     		board.setLocation(10,70);
     		add(infoView);
     		add(board);
     		Panel p=new Panel();
     		p.setBackground(new Color(150,200,254));
     		p.setLayout(new GridLayout(3,3));
     		p.add(new Label("名字：",2));
     		p.add(nameBox);
     		p.add(new Label("房间号：",2));
     		p.add(roomBox);
     		p.add(enterButton);
     		p.add(exitButton);
     		enterButton.setEnabled(true);
     		p.setBounds(500,30,250,70);
     		
     		Panel p2=new Panel();
     		p2.setBackground(new Color(150,200,254));
     		p2.setLayout(new BorderLayout());
     		Panel p2_1=new Panel();
     		//p2_1.add(computerButton);
     		p2_1.add(startButton);
     		p2_1.add(stopButton);
     		p2.add(pInfo,"North");
     		p2.add(pList,"Center");
     		p2.add(p2_1,"South");