unity3d中实现聊天功能的C#代码_教程

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发表于 2011-9-23 14:21:55 |只看该作者 |倒序浏览

using UnityEngine;

using System.Collections;
public class Chat : MonoBehaviour {
      bool usingChat = false;

bool showChat = false;
string inputField = "";
Vector2 scrollposition;

int width = 500;

int height = 200;

string playerName;

float lastUnfocusTime = 0;

Rect window;
ArrayList playerList = new ArrayList();

class PlayerNode

{

      public string playerName;

      public NetworkPlayer player;//NetworkPlayer是一个数据结构，保存着你可以从网络定位的另一位玩家的信息。比如，基于NetworkPlayer你可以向另外一个玩家发送消息。
}

ArrayList chatEntries=new ArrayList();

class ChatEntry

{

      public string name="";

      public string text="";

}

      // Use this for initialization

      void Start () {

      window = new Rect(Screen.width / 2-width/2,Screen.height-height+5,width,height);

      }

void OnConnectedToServer()

{

            playerName = PlayerPrefs.GetString("playerName","");

      if(playerName=="")

      {

         playerName = "RandomName"+Random.Range(1,999);

      }

      ShowChatWindow();

      networkView.RPC("TellServerOurName",RPCMode.Server,playerName);//在所有连接端调用一个RPC函数。

      addGameChatMessage(playerName+" hase just joined the chat!");

}

void OnServerInitialized()

{

            playerName = PlayerPrefs.GetString("playerName","");

      if(playerName=="")

      {

         playerName = "RandomName"+Random.Range(1,999);

      }

      ShowChatWindow();

      PlayerNode newEntry =new  PlayerNode();

      newEntry.playerName = playerName;

      newEntry.player = Network.player;

      playerList.Add(newEntry);

      addGameChatMessage(playerName+" hase just joined the chat!");

}

PlayerNode GetPlayerNode(NetworkPlayer netPlay)

{

      foreach(PlayerNode entry in playerList)

      {

         if(entry.player==netPlay)

         {

            return entry;

         }



      }

      Debug.LogError("GetPlayNode:Requested a playernode of non-existing player!");

      return null;

}

void OnPlayerDisconnected(NetworkPlayer netPlayer)//当一个玩家从服务器上断开时在服务器端调用。

{

      addGameChatMessage("A Player has discinnected");

      playerList.Remove(GetPlayerNode(netPlayer));

}

void OnDisconnectedFromServer()

{

      CloseChatWindow();

}

[RPC]

void TellServerOurName(string name,NetworkMessageInfo info)//NetworkMessageInfo 网络数据信息,刚从网络接收的数据的相关信息会被保存到这个结构中。它揭示了从哪里来（数据源），什么时间发送和什么网络视图发送；其中包括：数据源、发送时间、网络视图。http://3d.ceeger.com/Script/NetworkMessageInfo/NetworkMessageInfo.html
{

      PlayerNode newEntry = new PlayerNode();

      newEntry.playerName = playerName;

      newEntry.player = Network.player;

      playerList.Add(newEntry);

      addGameChatMessage(playerName+" has just joined the chat!");

}

      void CloseChatWindow()

{

      showChat = false;

      inputField = "";

      chatEntries = new ArrayList();

}

      void ShowChatWindow()

{

      showChat = true;

      inputField = "";

      chatEntries = new ArrayList();

}





      void OnGUI () {

      if (!showChat) return;

      if(Event.current.type==EventType.keyDown && Event.current.character=='
' & inputField.Length<=0)

      {

         if(lastUnfocusTime + .25f < Time.time)

         {

            usingChat = true;

            GUI.FocusWindow(5);

            GUI.FocusControl("Chat input field");

         }

      }

      window = GUI.Window(5,window,GlobalChatWindow,"");

      }
void GlobalChatWindow(int id)

{

      GUILayout.BeginVertical();

      GUILayout.Space(10);

      GUILayout.EndVertical();
      scrollposition = GUILayout.BeginScrollView(scrollposition);
      foreach(ChatEntry entry in chatEntries)

      {

         GUILayout.BeginHorizontal();

         if (entry.name == " - ")

         {

            GUILayout.Label(entry.name + entry.text);

         }

         else

         {

            GUILayout.Label(entry.name+": "+entry.text);

         }

         GUILayout.EndHorizontal();

         GUILayout.Space(2);

      }
      GUILayout.EndScrollView();

      if(Event.current.type==EventType.keyDown && Event.current.character=='
' & inputField.Length>0)

      {

         HitEnter(inputField);

      }

      GUI.SetNextControlName("Chat input field");

      inputField = GUILayout.TextField(inputField);
      if(Input.GetKeyDown("mouse 0"))

      {

         if(usingChat)

         {

            usingChat = false;

            GUI.UnfocusWindow();

            lastUnfocusTime = Time.time;

         }

      }

}

      void HitEnter(string msg)

      {

         msg = msg.Replace('
',' ');

         networkView.RPC("ApplyGlobalChatText",RPCMode.All,playerName,msg);

      }

[RPC]

void ApplyGlobalChatText(string name,string msg)

{

      ChatEntry entry=new ChatEntry();

   entry.name=name;

   entry.text=msg;
   chatEntries.Add(entry);
   if(chatEntries.Count>4)

   {

         chatEntries.RemoveAt(0);

   }

   scrollposition.y=1000000;

   inputField="";

}

void addGameChatMessage(string str)

{

      ApplyGlobalChatText(" - ",str);

      if(Network.connections.Length>0)

      {

         networkView.RPC("ApplyGlobalChatText",RPCMode.Others," - ",str);

      }

}

}