x01.Weiqi.3 网络对弈

为简化，只实现了两个用户的网络对弈。但在此基础上，即使去实现一个具有商业价值的网络对弈程序，应该也不是什么难事。毕竟，核心的问题已经解决了。

首先，是服务端。新建一个 WinForm 项目 Server。在主窗口中，添加一个按钮m_ButtonStartServer，双击，在 click 事件中，实现TcpListener 的诸多功能。

主窗口文件 MainForm.cs 内容如下：

MainForm

namespace Server
{
public partial class MainForm : Form
{
TcpListener m_TcpListener;
List < User > m_Users = new List < User > (); // 为简化，只作 2 想

public MainForm()
{
InitializeComponent();
}

private void ButtonStartServer_Click( object sender, EventArgs e)
{
IPAddress ip = Dns.GetHostAddresses(Dns.GetHostName())[ 0 ];
m_TcpListener = new TcpListener(ip, 51000 );
m_TcpListener.Start();

ThreadStart threadStart = new ThreadStart(ListenClient);
Thread thread = new Thread(threadStart);
thread.Start();

MessageBox.Show( " Start server success! " );
}

void ListenClient()
{
while ( true )
{
TcpClient client = null ;
try
{
client = m_TcpListener.AcceptTcpClient();
}
catch
{
break ; // 以此退出？
}
User user = new User(client);
m_Users.Add(user);

ParameterizedThreadStart ptStart = new ParameterizedThreadStart(ReceiveData);
Thread thread = new Thread(ptStart);
thread.Start(user);
}
}

void ReceiveData( object u)
{
User user = (User)u;
while ( true )
{
string data = user.Reader.ReadLine();
for ( int i = 0 ; i < 2 ; i ++ )
{
string color = i % 2 == 0 ? " black " : " white " ;
m_Users[i].Writer.WriteLine( string .Format( " {0},{1} " , color, data));
m_Users[i].Writer.Flush();
}
}
}

protected override void OnClosing(CancelEventArgs e)
{
base .OnClosing(e);

foreach (var item in m_Users)
{
item.Client.Close();
}
m_TcpListener.Stop();
}
}
}

其中，User 是为方便用户管理而添加的类。

代码文件 User.cs 内容如下：

User

namespace Server
{
class User
{
public TcpClient Client { get ; private set ; }
public StreamReader Reader { get ; private set ; }
public StreamWriter Writer { get ; private set ; }
public User(TcpClient client)
{
this .Client = client;
NetworkStream netStream = client.GetStream();
Reader = new StreamReader(netStream, System.Text.Encoding.UTF8);
Writer = new StreamWriter(netStream, System.Text.Encoding.UTF8);
}
}
}

如此，服务端就算完成。

客户端，直接从 BoardBase 继承，类名为：InetBoard。

代码文件 InetBoard.cs 内容如下：

InetBoard

namespace x01.Weiqi.Board
{
public class InetBoard : BoardBase
{
int m_Col = - 1 , m_Row = - 1 , m_StepCount = - 1 ;
string m_Color = string .Empty;
TcpClient m_Client = null ;
StreamWriter m_Writer = null ;
StreamReader m_Reader = null ;
int m_Count = 0 ;
System.Windows.Forms.Timer m_Timer = new System.Windows.Forms.Timer();

public InetBoard( int size = 38 )
: base (size)
{
m_Timer.Tick += new EventHandler(Timer_Tick);
m_Timer.Start();

InitClient();
}

void Timer_Tick( object sender, EventArgs e)
{
Draw();
}

void Draw()
{
int col = m_Col;
int row = m_Row;
if (NotIn(col, row))
{
return ;
}
DrawChess(col, row);
Eat(col, row);

m_Count ++ ;
}

void InitClient()
{
// 测试，取主机即可。实际，应为服务器域名
m_Client = new TcpClient(Dns.GetHostName(), 51000 );
m_Writer = new StreamWriter(m_Client.GetStream(), Encoding.UTF8);
m_Reader = new StreamReader(m_Client.GetStream(), Encoding.UTF8);

Thread thread = new Thread( new ThreadStart(Receive));
thread.Start();
}

void Receive()
{
while ( true )
{
string data = m_Reader.ReadLine();
string [] step = data.Split( ' , ' );
m_Color = step[ 0 ];
m_Col = int .Parse(step[ 1 ]);
m_Row = int .Parse(step[ 2 ]);
m_StepCount = int .Parse(step[ 3 ]);
}
}

void Send( string data)
{
m_Writer.WriteLine(data);
m_Writer.Flush();
}

protected override void OnMouseLeftButtonDown(System.Windows.Input.MouseButtonEventArgs e)
{
base .OnMouseLeftButtonDown(e);

if (m_Color == " black " && IsBlack != false )
{
return ;
}

if (m_Color == " white " && IsBlack == false )
{
return ;
}

int col = ( int )e.GetPosition( this ).X / ChessSize;
int row = ( int )e.GetPosition( this ).Y / ChessSize;

string data = string .Format( " {0},{1},{2} " , col, row, m_Count + 1 );
Send(data);
}
}
}

用户控件 Chess 只能在 STA 中处理，故添加了一个 Timer。逻辑不复杂，不详叙。

用法：

1. 运行Server，效果图如下：

2. 启动两个 x01.Weiqi，从菜单中选择 Inet 项。用户1和2的运行效果图如下：

源代码可从 http://www.cnblogs.com/china_x01  的 download\code\x01.Weiqi 获取。

Copyright (c) 2011 by x01([email protected])，未经许可，请勿转载。