Java简单实现的五子棋

![开始界面](https://img-blog.youkuaiyun.com/20160705230450338)
实现的基本思路
1.绘制好基本的框架界面(棋盘,菜单等)
2.能够在其棋盘上绘制棋子
3.将棋子的位置规格化(就是摆放到网格的交叉点上,还要具有一定的偏差能力)
4.判断游戏是否结束
5.优化程序

//主窗体MainFrame

package com.FIveChess.View;

import java.awt.BorderLayout;

import javax.swing.JFrame;

/***
 * 主窗体
 * @author XHH
 *
 */
public class MainFrame extends JFrame{
    public MainFrame() {
        init();
        setVisible(true);
        addBoardPanel();
    }

    //添加棋盘
    private void addBoardPanel() {
        ChessBoard chessBoard=new ChessBoard(this);
        this.add(chessBoard);

    }
    //设置窗体的基本框架
    public void init(){
        setTitle("简单五子棋");//窗体标题
        setSize(800,800);//窗体大小
        setLocationRelativeTo(null);//居中
        setDefaultCloseOperation(3);
    }


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

//棋盘

package com.FIveChess.View;

import java.awt.Color;
import java.awt.Dimension;
import java.awt.Graphics;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;

import javax.swing.JOptionPane;
import javax.swing.JPanel;

public class ChessBoard extends JPanel{
    MainFrame mainFrame;
    //存放棋子状态的二维数组,0--无棋子
    // 1--黑棋,2--白旗
    int [][]chess=new int[18][18];
    int x,y;
    boolean chessFlag=true; //为true时黑 false--白
    public ChessBoard(MainFrame f) {
        this.mainFrame=f;
        init();
        addMouseListener(new MouseAdapter() {
            @Override
            public void mouseClicked(MouseEvent e) {

                //获取当前点击点的坐标
                x=e.getX()-40;
                y=e.getY()-40;
                int xIndex=x%40>20?x/40+1:x/40;
                int yIndex=y%40>20?y/40+1:y/40;
                //控制不能在已经有棋子的地方下子
                if(chess[xIndex][yIndex]!=0)return;
                if(chessFlag)
                {
                    chess[xIndex][yIndex]=1;
                    chessFlag=false;
                }
                else 
                {
                    chess[xIndex][yIndex]=2;
                    chessFlag=true;
                }
                //重绘,否则即使点击了也不会显示
                mainFrame.repaint();
                //判断游戏是否结束
                if(checkGameIsOver(xIndex,yIndex)){
                    JOptionPane.showMessageDialog(null, "游戏胜利");
                    for(int i=0;i<chess.length;i++)
                    {
                        for(int j=0;j<chess[i].length;j++)
                        {
                            chess[i][j]=0;
                        }
                    }   
                    mainFrame.repaint();
                }
            }


        });

    }
    private void init() {
        setBackground(Color.gray);
        //可以自己去设置图片显得更好看


    }
    //重写paint方法
    @Override
    public void paint(Graphics g) {
        super.paint(g);
        //画棋盘
        for(int i=0;i<18;i++){
            //竖线
            g.drawLine(40+40*i, 40, 40+40*i, 720);
            //横线
            g.drawLine(40, 40+40*i, 720, 40+40*i);
        }
        //画棋子
        for(int i=0;i<chess.length;i++)
        {
            for(int j=0;j<chess[i].length;j++)
            {
                if(chess[i][j]==1)//画黑棋子
                {
                    g.setColor(Color.BLACK);
                    g.fillOval(40+i*40-18, 40+j*40-18, 36, 36);
                }
                if(chess[i][j]==2)//画白棋子
                {
                    g.setColor(Color.WHITE);
                    g.fillOval(40+i*40-18, 40+j*40-18, 36, 36);
                }

            }
        }
    }

    private boolean checkGameIsOver(int xIndex,int yIndex) {
        //获取当前的棋子
        int currentChess=chess[xIndex][yIndex];
        int count=1; //棋子计数器
        int tempXIndex = xIndex;
        int tempYIndex = yIndex;
        //不同的判断方向 上下、左右、左斜、右斜
        int[][][] allChanges = { 
                { { -1, -1 }, { 1, 1 } }, 
                { { 1, -1 }, { -1, 1 } }, 
                { { 0, -1 }, { 0, 1 } },
                { { -1, 0 }, { 1, 0 } } };
        for (int j = 0; j < allChanges.length; j++) {
            int[][] changes = allChanges[j];
            count = 1;
            for (int[] change : changes) {
                tempXIndex = xIndex;
                tempYIndex = yIndex;
                while (true) {
                    tempXIndex = tempXIndex + change[0];
                    tempYIndex = tempYIndex + change[1];

                    if (tempXIndex < 0 || tempXIndex > 20 || tempYIndex < 0 || tempYIndex > 20) {
                        break;
                    }

                    int i = chess[tempXIndex][tempYIndex];
                    //当前走的方向有颜色相同的棋子就+1
                    if (i == currentChess) {
                        count++;
                    } else {
                        break;
                    }
                }
            }
            if (count >= 5) {
                return true;
            }
        }
        return false;
    }

}

效果图
美化界面的部分就不写了。。。

简单 五子棋的客户端部分程序 //chessClient.java:客户端主程序。 //userPad.java:客户端的界面。 //chessPad.java:棋盘的绘制。 //chessServer.java:服务器端。 //可同时容纳50个人同时在线下棋,聊天。 import java.awt.*; import java.awt.event.*; import java.io.*; import java.net.*; import java.util.*; class clientThread extends Thread{ chessClient chessclient; clientThread(chessClient chessclient){ this.chessclient=chessclient; } public void acceptMessage(String recMessage){ if(recMessage.startsWith("/userlist ")){ StringTokenizer userToken=new StringTokenizer(recMessage," "); int userNumber=0; chessclient.userpad.userList.removeAll(); chessclient.inputpad.userChoice.removeAll(); chessclient.inputpad.userChoice.addItem("所有人"); while(userToken.hasMoreTokens()){ String user=(String)userToken.nextToken(" "); if(userNumber>0 && !user.startsWith("[inchess]")){ chessclient.userpad.userList.add(user); chessclient.inputpad.userChoice.addItem(user); } userNumber++; } chessclient.inputpad.userChoice.select("所有人"); } else if(recMessage.startsWith("/yourname ")){ chessclient.chessClientName=recMessage.substring(10); chessclient.setTitle("Java五子棋客户端 "+"用户名:"+chessclient.chessClientName); } else if(recMessage.equals("/reject")){ try{ chessclient.chesspad.statusText.setText("不能加入游戏"); chessclient.controlpad.cancelGameButton.setEnabled(false); chessclient.controlpad.joinGameButton.setEnabled(true); chessclient.controlpad.creatGameButton.setEnabled(true); } catch(Exception ef){ chessclient.chatpad.chatLineArea.setText("chessclient.chesspad.chessSocket.close无法关闭"); } chessclient.controlpad.joinGameButton.setEnabled(true); } else if(recMessage.startsWith("/peer ")){ chessclient.chesspad.chessPeerName=recMessage.substring(6); if(chessclient.isServer){ chessclient.chesspad.chessColor=1; chessclient.chesspad.isMouseEnabled=true; chessclient.chesspad.statusText.setText("请黑棋下子"); } else if(chessclient.isClient){ chessclient.chesspad.chessColor=-1; chessclient.chesspad.statusText.setText("已加入游戏,等待对方下子..."); } } else if(recMessage.equals("/youwin")){ chessclient.isOnChess=false; chessclient.chesspad.chessVictory(chessclient.chesspad.chessColor); chessclient.chesspad.statusText.setText("对方退出,请点放弃游戏退出连接"); chessclient.chesspad.isMouseEnabled=false; } else if(recMessage.equals("/OK")){ chessclient.chesspad.statusText.setText("创建游戏成功,等待别人加入..."); } else if(recMessage.equals("/error")){ chessclient.chatpad.chatLineArea.append("传输错误:请退出程序,重新加入 \n"); } else{ chessclient.chatpad.chatLineArea.append(recMessage+"\n"); chessclient.chatpad.chatLineArea.setCaretPosition( chessclient.chatpad.chatLineArea.getText().length()); } } public void run(){ String message=""; try{ while(true){ message=chessclient.in.readUTF(); acceptMessage(message); } } catch(IOException es){ } } } public class chessClient extends Frame implements ActionListener,KeyListener{ userPad userpad=new userPad(); chatPad chatpad=new chatPad(); controlPad controlpad=new controlPad(); chessPad chesspad=new chessPad(); inputPad inputpad=new inputPad(); Socket chatSocket; DataInputStream in; DataOutputStream out; String chessClientName=null; String host=null; int port=4331; boolean isOnChat=false; //在聊天? boolean isOnChess=false; //在下棋? boolean isGameConnected=false; //下棋的客户端连接? boolean isServer=false; //如果是下棋的主机 boolean isClient=false; //如果是下棋的客户端 Panel southPanel=new Panel(); Panel northPanel=new Panel(); Panel centerPanel=new Panel(); Panel westPanel=new Panel(); Panel eastPanel=new Panel(); chessClient( ){ super("Java五子棋客户端"); setLayout(new BorderLayout()); host=controlpad.inputIP.getText(); westPanel.setLayout(new BorderLayout()); westPanel.add(userpad,BorderLayout.NORTH); westPanel.add(chatpad,BorderLayout.CENTER); westPanel.setBackground(Color.pink); inputpad.inputwords.addKeyListener(this); chesspad.host=controlpad.inputIP.getText(); centerPanel.add(chesspad,BorderLayout.CENTER); centerPanel.add(inputpad,BorderLayout.SOUTH); centerPanel.setBackground(Color.pink); controlpad.connectButton.addActionListener(this); controlpad.creatGameButton.addActionListener(this); controlpad.joinGameButton.addActionListener(this); controlpad.cancelGameButton.addActionListener(this); controlpad.exitGameButton.addActionListener(this); controlpad.creatGameButton.setEnabled(false); controlpad.joinGameButton.setEnabled(false); controlpad.cancelGameButton.setEnabled(false); southPanel.add(controlpad,BorderLayout.CENTER); southPanel.setBackground(Color.pink); addWindowListener(new WindowAdapter(){ public void windowClosing(WindowEvent e){ if(isOnChat){ try{ chatSocket.close(); }catch(Exception ed){ } } if(isOnChess || isGameConnected){ try{ chesspad.chessSocket.close(); }catch(Exception ee){ } } System.exit(0); } public void windowActivated(WindowEvent ea){ } }); add(westPanel,BorderLayout.WEST); add(centerPanel,BorderLayout.CENTER); add(southPanel,BorderLayout.SOUTH); pack(); setSize(670,548); setVisible(true); setResizable(false); validate(); } public boolean connectServer(String serverIP,int serverPort) throws Exception{ try{ chatSocket=new Socket(serverIP,serverPort); in=new DataInputStream(chatSocket.getInputStream()); out=new DataOutputStream(chatSocket.getOutputStream()); clientThread clientthread=new clientThread(this); clientthread.start(); isOnChat=true; return true; } catch(IOException ex){ chatpad.chatLineArea.setText("chessClient:connectServer:无法连接,建议重新启动程序 \n"); } return false; } public void actionPerformed(ActionEvent e){ if(e.getSource()==controlpad.connectButton){ host=chesspad.host=controlpad.inputIP.getText(); try{ if(connectServer(host,port)){ chatpad.chatLineArea.setText(""); controlpad.connectButton.setEnabled(false); controlpad.creatGameButton.setEnabled(true); controlpad.joinGameButton.setEnabled(true); chesspad.statusText.setText("连接成功,请创建游戏或加入游戏"); } } catch(Exception ei){ chatpad.chatLineArea.setText("controlpad.connectButton:无法连接,建议重新启动程序 \n"); } } if(e.getSource()==controlpad.exitGameButton){ if(isOnChat){ try{ chatSocket.close(); } catch(Exception ed){ } } if(isOnChess || isGameConnected){ try{ chesspad.chessSocket.close(); } catch(Exception ee){ } } System.exit(0); } if(e.getSource()==controlpad.joinGameButton){ String selectedUser=userpad.userList.getSelectedItem(); if(selectedUser==null || selectedUser.startsWith("[inchess]") || selectedUser.equals(chessClientName)){ chesspad.statusText.setText("必须先选定一个有效用户"); } else{ try{ if(!isGameConnected){ if(chesspad.connectServer(chesspad.host,chesspad.port)){ isGameConnected=true; isOnChess=true; isClient=true; controlpad.creatGameButton.setEnabled(false); controlpad.joinGameButton.setEnabled(false); controlpad.cancelGameButton.setEnabled(true); chesspad.chessthread.sendMessage("/joingame "+userpad.userList.getSelectedItem()+" "+chessClientName); } }else{ isOnChess=true; isClient=true; controlpad.creatGameButton.setEnabled(false); controlpad.joinGameButton.setEnabled(false); controlpad.cancelGameButton.setEnabled(true); chesspad.chessthread.sendMessage("/joingame "+userpad.userList.getSelectedItem()+" "+chessClientName); } } catch(Exception ee){ isGameConnected=false; isOnChess=false; isClient=false; controlpad.creatGameButton.setEnabled(true); controlpad.joinGameButton.setEnabled(true); controlpad.cancelGameButton.setEnabled(false); chatpad.chatLineArea.setText("chesspad.connectServer无法连接 \n"+ee); } } } if(e.getSource()==controlpad.creatGameButton){ try{ if(!isGameConnected){ if(chesspad.connectServer(chesspad.host,chesspad.port)){ isGameConnected=true; isOnChess=true; isServer=true; controlpad.creatGameButton.setEnabled(false); controlpad.joinGameButton.setEnabled(false); controlpad.cancelGameButton.setEnabled(true); chesspad.chessthread.sendMessage("/creatgame "+"[inchess]"+chessClientName); } }else{ isOnChess=true; isServer=true; controlpad.creatGameButton.setEnabled(false); controlpad.joinGameButton.setEnabled(false); controlpad.cancelGameButton.setEnabled(true); chesspad.chessthread.sendMessage("/creatgame "+"[inchess]"+chessClientName); } } catch(Exception ec){ isGameConnected=false; isOnChess=false; isServer=false; controlpad.creatGameButton.setEnabled(true); controlpad.joinGameButton.setEnabled(true); controlpad.cancelGameButton.setEnabled(false); ec.printStackTrace(); chatpad.chatLineArea.setText("chesspad.connectServer无法连接 \n"+ec); } } if(e.getSource()==controlpad.cancelGameButton){ if(isOnChess){ chesspad.chessthread.sendMessage("/giveup "+chessClientName); chesspad.chessVictory(-1*chesspad.chessColor); controlpad.creatGameButton.setEnabled(true); controlpad.joinGameButton.setEnabled(true); controlpad.cancelGameButton.setEnabled(false); chesspad.statusText.setText("请建立游戏或者加入游戏"); } if(!isOnChess){ controlpad.creatGameButton.setEnabled(true); controlpad.joinGameButton.setEnabled(true); controlpad.cancelGameButton.setEnabled(false); chesspad.statusText.setText("请建立游戏或者加入游戏"); } isClient=isServer=false; } } public void keyPressed(KeyEvent e){ TextField inputwords=(TextField)e.getSource(); if(e.getKeyCode()==KeyEvent.VK_ENTER){ if(inputpad.userChoice.getSelectedItem().equals("所有人")){ try{ out.writeUTF(inputwords.getText()); inputwords.setText(""); } catch(Exception ea){ chatpad.chatLineArea.setText("chessClient:KeyPressed无法连接,建议重新连接 \n"); userpad.userList.removeAll(); inputpad.userChoice.removeAll(); inputwords.setText(""); controlpad.connectButton.setEnabled(true); } } else{ try{ out.writeUTF("/"+inputpad.userChoice.getSelectedItem()+" "+inputwords.getText()); inputwords.setText(""); } catch(Exception ea){ chatpad.chatLineArea.setText("chessClient:KeyPressed无法连接,建议重新连接 \n"); userpad.userList.removeAll(); inputpad.userChoice.removeAll(); inputwords.setText(""); controlpad.connectButton.setEnabled(true); } } } } public void keyTyped(KeyEvent e){} public void keyReleased(KeyEvent e){} public static void main(String args[]){ chessClient chessClient=new chessClient(); } }
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