How to implement the stand-alone version of backgammon in Java

Java五子棋设计流程：

1.创建窗口和设计一个棋盘界面

2.实现鼠标点击，棋子出现，黑白棋轮流下

3.能够判断输赢

4.添加按钮功能

实现结果图：

import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Cursor;
import java.awt.FlowLayout;
import java.awt.Graphics;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.KeyEvent;
import java.awt.event.KeyListener;
import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
import javax.imageio.ImageIO;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
 
public class Test {
 
    public static void main(String[] args) {
        new MyFrame();
        
    }
}
 
class MyFrame extends JFrame implements MouseListener{
    
    //保存坐标
    int x;
    int y;
    int x1;
    int y1;
    //黑子数
    //白子数
    //1是黑下，2是白下
    //默认开始是黑旗先下
    int flag=1;
    //表示游戏是否结束
    //true游戏开始，false游戏结束，不能再下
    boolean canPlay=true;
    //保存之前下过的棋子的坐标
    //'0'代表没有棋子，'1'代表黑棋，'2'代表白棋
    int [][]allChess=new int[19][19];
    //int [][]allChess=new int[25][25];
    //当前棋子的总数
    int chessSum=0;
    BufferedImage bgImage =null;
    
    JButton withdraw=new JButton("悔棋");
    JButton restart=new JButton("重新开始");
    JButton exit=new JButton("退出");
    JPanel south=new JPanel();
    
    public MyFrame() {
        this.setTitle("五子棋");
        setSize(630,700);
        setLayout(new BorderLayout()); 
        setLocationRelativeTo(null); 
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        try {
            bgImage=ImageIO.read(new File("C:\\Users\\us\\Desktop\\1.jpg"));
        } catch (IOException e1) {
            
            e1.printStackTrace();
        }
        addMouseListener(this);//将窗体加入监听
        
        south.setLayout(new FlowLayout(FlowLayout.LEFT,60,30));
        
        south.add(restart);
        south.add(withdraw);
        south.add(exit);
        //初始化按钮事件监听器内部类 
        MybuttonListener buttonListener =new MybuttonListener();
        //将三个按钮事件注册监听事件
        restart.addActionListener(buttonListener);
        withdraw.addActionListener(buttonListener);
        exit.addActionListener(buttonListener);
        //将按钮面板加到窗体的南部
        this.add(south,BorderLayout.SOUTH);
        
        setVisible(true);
    }
    
    public void paint(Graphics g) {
        
        int tempSum=chessSum;
        //棋盘
        g.drawImage(bgImage,8,30,this);
        
        for(int colum=58;colum<600 ;colum=colum+30){//行
         g.drawLine(38,colum,578,colum);
        }
        for(int rand=38;rand<600;rand=rand+30){//列
         g.drawLine(rand, 58,rand, 598);
        }
        //黑点
        g.fillOval(122, 143, 10, 10); 
        g.fillOval(484, 143, 10, 10);
        g.fillOval(122, 504, 10, 10);
        g.fillOval(303, 353, 10, 10);
        g.fillOval(484, 503, 10, 10);
        g.fillOval(122, 355, 10, 10);
        g.fillOval(484, 355, 10, 10);
        g.fillOval(303, 145, 10, 10);
        g.fillOval(303, 503, 10, 10);
        
        for(int i=0;i<allChess.length;i++) {
            for(int j=0;j<allChess.length;++j) {
             //下黑子
                if(allChess[i][j]==1) {
                    int tempX=i*30+38;//左边界到棋盘的距离
                    int tempY=j*30+58;//上边界到棋盘的距离
                     g.setColor(Color.black);
                     g.fillOval(tempX-13,tempY-13,25,25);
                    
                    
                }
                 
                 
                //下白子
                if(allChess[i][j]==2) {
                    int tempX=i*30+38;
                    int tempY=j*30+58;
                    g.setColor(Color.white);
                    g.fillOval(tempX-13,tempY-13,25,25);
                    
                    
                        
                    
                    
                }
                
                
                 
            }
        }
        //最后棋子用红框表示
        if(chessSum>0) {
         g.setColor(Color.red);
         g.drawRect(x*30+38-13, y*30+58-13, 25,25);
        }
        //g.setColor(Color.red);
        //g.drawRect(x1*30+38-13, y1*30+58-13, 25,25);
        chessSum++;
        System.out.println("总数为"+(chessSum-1));
    }
 
    
    public void mouseClicked(MouseEvent e) {
             x=e.getX();
             y=e.getY();
         //System.out.println("x="+e.getX()+" "+"y="+e.getY());
       if(canPlay) {
           
         if(x>=38&&x<=588&&y>=58&&y<=620) {
             
            x=(x-38)/30;//38起点，适应19x19
            y=(y-58)/30;
            if(allChess[x][y]==0){//此点没有棋子，才可下
            //判断该由哪方下棋
            if(flag==1) {//&#39;1&#39;代表由黑方下
                allChess[x][y]=1;//&#39;1&#39;表示此处放黑棋
                this.checkFive();//判断黑棋是否五子相连
                
                flag=2;
            }
            else {
                allChess[x][y]=2;//&#39;2&#39;表示此处放白棋
                this.checkFive();//判断白棋是否五子相连
                
                flag=1;//&#39;1&#39;代表由黑方下
            }
          this.repaint();
        }
       }
      }
          
       }
    
    
    //判断五子相连
    public  void checkFive(){
        //把要下的棋子颜色保存
        int color=allChess[x][y];
        //计算已连棋子个数
        int count=1;
        
        //判断横向右边是否五子
        for(int i=1;i<5;i++) {
            if(x>=15)
                break;
            if(color==allChess[x+i][y]) {
                count++;
            }
            checkWin(count);
        }
        count=1;
        
        //判断横向左边是否五子
        for(int i=1;i<5;i++) {
            if(x<=3)//当棋子左边无法连成五子，直接退出
                break;
            
            if(color==allChess[x-i][y]) {
                count++;
            }
            checkWin(count);
        }
        count=1;
        
        //判断竖向下边是否五子
        for(int i=1;i<5;i++) {
            if(y>=15)//当棋子左边无法连成五子，直接退出
                break;
            if(color==allChess[x][y+i]) {
                count++;
            }
            checkWin(count);
        }
        count=1;
        
        //判断竖向上边是否五子
        for(int i=1;i<5;i++) {
            if(y<=3)//当棋子竖向上边无法连成五子，直接退出
                break;
            if(color==allChess[x][y-i]) {
                count++;
            }
            checkWin(count);
        }
        count=1;
        
        //判断右斜上边是否五子
        for(int i=1;i<5;i++) {
            if(y<=3||x>=15)//当棋子右斜上边无法连成五子，直接退出
                break;
            if(color==allChess[x+i][y-i]) {
                count++;
            }
            checkWin(count);
        }
        count=1;
        
        //判断左斜向下边是否五子
        for(int i=1;i<5;i++) {
            if(x<=3||y>=15)//当棋子左斜向下边无法连成五子，直接退出
                break;
            
            if(color==allChess[x-i][y+i]) {
                count++;
            }
            checkWin(count);
        }
        count=1;
        
        //判断左斜向上边是否五子
        for(int i=1;i<5;i++) {
            if(x<=3||y<=3)
                break;
            if(color==allChess[x-i][y-i]) {
                count++;
            }
            checkWin(count);
        }
        count=1;
        
        //判断右斜向下边是否五子
        for(int i=1;i<5;i++) {
            if(y>=15||x>=15)
                break;
            if(color==allChess[x+i][y+i]) {
                count++;
            }
            checkWin(count);                
            
        }
        count=1;
        
    }

    public void mouseEntered(MouseEvent e) {
         x1=e.getX();
         y1=e.getY();
         if(x1>=38&&x1<=588&&y1>=58&&y1<=620) {
             
             setCursor(new Cursor(Cursor.HAND_CURSOR));
            
         }
        
    }
        
    public void mouseExited(MouseEvent arg0) {
        // TODO Auto-generated method stub
        
    }
 
    public void mousePressed(MouseEvent arg0) {
        
        
    }
 
    public void mouseReleased(MouseEvent e) {
        
 }
     
    public void checkWin(int count) {
       
       if(count>=5) {//五子相连
          
         if(allChess[x][y]==1) {
            JOptionPane.showMessageDialog(this, "黑方胜出!!!!!!");
         }
         if(allChess[x][y]==2) {
            JOptionPane.showMessageDialog(this, "白方胜出!!!!!!");
         }
         canPlay=false;//游戏结束
       }
    }
    
    //重新开始
    public void restartGame(){
        for(int i=0;i<allChess.length;i++) {
            for(int j=0;j<allChess.length;j++) {
                allChess[i][j]=0;
            }
        }
        flag=1;//默认开始是黑旗先下
        canPlay=true;
        repaint();
    }
    
    //悔棋
    public void goback() {
      if(allChess[x][y]!=0) {//当棋盘有棋子，才能悔棋
        allChess[x][y]=0;
        if(flag==1) {
            flag=2;
            repaint();
        }
        else {
            flag=1;
            repaint();
        }
      }
    }
    
    //按钮事件监听器内部类 
    class MybuttonListener  implements ActionListener{
        public void actionPerformed(ActionEvent e) {
            if(e.getSource()==restart) {
                restartGame();
            }
            if(e.getSource()==withdraw) {
                goback();
            }
            if(e.getSource()==exit) {
                System.exit(0);  
            }
        }
    }
}

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