【Unity】简单聊天室功能的实现方法教程

由於有人問到如何建立聊天室
所以利用 Unity 中內建的 Network 來簡易說明

首先新增一個 Server.cs

using UnityEngine;  
using System.Collections;  

public class Server : MonoBehaviour
{  
	//The number of allowed incoming connections
	public int connections = 4;
	//The port number we want to listen to
	public int port = 25000;

	void OnGUI()
	{
		//Network state
		switch (Network.peerType)
		{
		//Disconnected
		case NetworkPeerType.Disconnected:
			CreateServer();
			break;
		//In server
		case NetworkPeerType.Server:
			OnServer();
			break;
		}
	}

	//Create server button
	void CreateServer()
	{
		if (GUILayout.Button ("Create Server"))
		{
			//Initialize the server
			//Network.InitializeServer(int connections, int listenPort, bool useNat); 
			Network.InitializeServer( connections, port, false );
		}
	}

	//Wait for client and display the client information
	void OnServer()
	{
		GUILayout.Label ( "The Server is startting now, waiting for client connecting." );
		int length = Network.connections.Length;

		for (int cnt = 0; cnt < length; cnt++)
		{
			GUILayout.Label( "-------------------------" );
			GUILayout.Label( "Client " + cnt );
			GUILayout.Label( "Client IP : " + Network.connections[cnt].ipAddress );
			GUILayout.Label( "Client Port : " + Network.connections[cnt].port );
		}
	}
}

Server.cs 腳本主要是用來初始化伺服器
這裡所使用的方法都是 Unity API
這個腳本是用來初始化伺服器提供客戶端連線

接下來新增 Client.cs

using UnityEngine;  
using System.Collections;  

public class Client : MonoBehaviour
{
	public string IP = "127.0.0.1";

	//The port number we want to listen to
	public int port = 25000;

	//The total message
	private string message;
	//The send message
	private string sendMessage = "";

	//The client name
	private string name = "";

	void OnGUI()
	{	
		switch (Network.peerType)
		{	
		case NetworkPeerType.Disconnected:
			StartConnect();
			break;
		case NetworkPeerType.Client:
			OnClient();
			break;	
		}
	}

	void StartConnect()
	{
		if (GUILayout.Button ("Connect to server"))
		{		
			Network.Connect( IP, port );
		}
	}

	void OnClient()
	{
		name = GUILayout.TextField( name, 10 );
		sendMessage = GUILayout.TextField(sendMessage, 25);

		if (GUILayout.Button ("Send Message"))
		{
			//Network send function
			//networkView.RPC(string name, RPCMode mode, params object[] args); 
			GetComponent<NetworkView>().RPC( "ReceiveMessage", RPCMode.All, name, sendMessage );
			sendMessage = "";
		}

		GUILayout.Label ( "Message : " );
		GUILayout.Label ( message );
	}

	//Network receive function
	[RPC]
	void ReceiveMessage(string n, string msg, NetworkMessageInfo info)
	{	
		message += n + " : " + msg + "\n";
	}

}

用來傳遞訊息至其他客戶端
並且接受從其他客戶端傳來的訊息

接下來創建兩個新場景並分別命名為 Server 及 Client
分別將兩個腳本賦予場景中的 Main Camera
並新增 Component → Miscellaneous → Network View 至 Camera 上

 

接著分別輸出兩個場景檔

 

產生出 Server 及 Client 執行檔後
分別執行一次 Server、兩次 Client

 

按下 Create Server 按鈕後
至 Client 端按下 Connect to server 按鈕

 

若伺服端接收成功後
即可開始進行聊天功能測試

測試結果

此範例所用到的 Unity API 彙整
NetworkPeerType
Network.InitializeServer
Network.Connect
NetworkView.RPC