C＃从另一个类访问变量而不重构类

Question

如何从另一个类访问变量而不重构它？

级＃1：

namespace Server.world 
{ 
    public class WorldData 
    { 
     private entitys.Player[] Players = new entitys.Player[Convert.ToInt16(ConfigurationManager.AppSettings["maxplayers"])]; 

     public entitys.Player this[int i] 
     { 
      get { return Players[i]; } 
      set { Players[i] = value; } 
     } 
    } 
} 

类＃2：构建worldData类：

namespace Server 
{ 
    class StartUp 
    { 
     public Server.tcpserver.TcpServer ListenerTcp = new Server.tcpserver.TcpServer(); 
     public world.WorldData WorldData = new world.WorldData(); 

     /// <summary> 
     /// Server start function 
     /// </summary> 
     public void Start() 
     { 
      string rootFolder = ConfigurationManager.AppSettings["rootfolder"]; 

      if (!Directory.Exists(rootFolder)) 
      { 
       Directory.CreateDirectory(rootFolder); 
       string pathString = Path.Combine(rootFolder, "world"); 
       Directory.CreateDirectory(pathString); 
      } 

      ListenerTcp.StartListening(); 
      //No code below this point 
     } 
    } 
} 

类＃3：

namespace Server.tcpserver 
{ 
    class TcpServer 
    { 
     int counter = 0; 

     public void StartListening() 
     { 
      IPAddress ipAddress = Dns.GetHostEntry("127.0.0.1").AddressList[0]; 
      TcpListener serverSocket = new TcpListener(8888); 
      TcpClient clientSocket = default(TcpClient); 

      serverSocket.Start(); 
      counter = 0; 

      while (true) 
      { 
       counter += 1; 

       clientSocket = serverSocket.AcceptTcpClient(); 
       Server.client.Client Client = new Server.client.Client(clientSocket); 
       Console.WriteLine("Player Connected!"); 
       //get world playerdata here 
      } 
     } 
    } 
} 

我会怎么做呢？我看到处处都找不到它

Answer 1

一种方法是，您可以提供一个构造函数，它使用WorldData的实例或者将WorldData作为属性公开的StartUp实例。

public class TcpServer 
{ 
    int counter = 0; 
    private StartUp startUp: 

    public TcpServer(StartUp startUp) 
    { 
     this.startUp = startUp; 
    } 

    public void StartListening() 
    { 
     // ... 
     var worldData = this.startUp.WorldData;  // <--- !!! 
     // ... 
    } 

    // ... 
} 

现在我也将使用的StartUp构造函数初始化TcpServer：

public class StartUp 
{ 
    public StartUp() 
    { 
     WorldData = new world.WorldData(); 
     ListenerTcp = new Server.tcpserver.TcpServer(this); // <--- !!! 
    } 

    public Server.tcpserver.TcpServer ListenerTcp; 
    public world.WorldData WorldData; 
    // ... 
}