Hi everyone, I have a basic network level loading question.

To test the project, I use two copies of my unity project and use one Unity instance to launch the server, and the other one to run the client.

I followed the guidelines described in Unity's documentation

I have a scene with one gameobject and a camera. The gameobject has a component NetworkManager. On the client, it instantiates a NetworkClientManager and on the server it instantiates a NetworkServerManager.

I successfully managed to connect the client and the server. So I tried to load a level from the server, but the client get disconnected during the level loading.

This is the server code

using UnityEngine;
using System.Collections;

[RequireComponent(typeof(NetworkView))]
public class NetworkServerManager : MonoBehaviour
{
    private int LastLoadedLevelPrefix = 0;
    public NetworkConnectionError NetworkStatus {get;private set;}

    void Awake()
    {
       // Network group for network management
       networkView.group = 1;
    }

    void Start()
    {
       // Initialize server when NetworkServerManager is started
       NetworkStatus = Network.InitializeServer(10, 25000);  
    }

    void OnPlayerConnected(NetworkPlayer player) 
    {
        Debug.Log("Player connected " + player.ToString());
    }

    // This is called on the server
    void OnPlayerDisconnected(NetworkPlayer player) 
    {
       Debug.Log("Player disconnected " + player.ToString());
    }

    void OnGUI()
    {
       if (NetworkStatus == NetworkConnectionError.NoError && GUI.Button(new Rect(0, 0, 128, 64), "Load Level")) 
       {
         Network.RemoveRPCsInGroup(0);
         Network.RemoveRPCsInGroup(1);
         networkView.RPC("LoadLevel", RPCMode.AllBuffered, "main", LastLoadedLevelPrefix + 1);
       }
    }

    [RPC]
    void LoadLevel(string levelName, int prefix)
    {
       LastLoadedLevelPrefix = prefix;

       Network.SetSendingEnabled(0, false);
       Network.isMessageQueueRunning = false;

       Network.SetLevelPrefix(prefix);
       Application.LoadLevel("main");
       Debug.Log("Loading level");
    }

    void OnLevelWasLoaded(int level)
    {
       Debug.Log("Sending data");
       Network.isMessageQueueRunning = true;
       Network.SetSendingEnabled(0, true);
    }
}

And now, the client side code :

using UnityEngine;
using System.Collections;

[RequireComponent(typeof(NetworkView))]
public class NetworkClientManager : MonoBehaviour
{
    public NetworkConnectionError? NetworkStatus { get; private set;}

    public void Connect(string ip)
    {
       NetworkStatus = Network.Connect(ip, 25000);
    }

    public void Disconnect()
    {
       Network.Disconnect(200);
    }

    void Awake()
    {
       networkView.group = 1;
    }

    void OnEnable()
    {
       NetworkStatus = null;
    }

    void OnDisable()
    {
       Disconnect();
    }

    void OnConnectedToServer()
    {
       Debug.Log("Connected to server");
    }

    void OnGUI()
    {
       if (GUI.Button(new Rect(0, 0, 128, 64), "Disconnect")) 
       {
            Disconnect();
       }
    }

    void OnDisconnectedFromServer(NetworkDisconnection info) 
    {
       Debug.Log("Disconnected " + info.ToString());
       NetworkStatus = null;
       Destroy(this);
    }

    [RPC]
    void LoadLevel(string level, int levelPrefix)
    {
       Network.SetSendingEnabled(0, false);
       Network.isMessageQueueRunning = false;

       Network.SetLevelPrefix(levelPrefix);

       Application.LoadLevel(level);
       Debug.Log(Network.peerType);
    }

    void OnLevelWasLoaded(int level)
    {
       Debug.Log(Network.peerType);
       ObserverManager.ObserverCamera.gameObject.active = true;

       Debug.Log("Sending data");
       Network.isMessageQueueRunning = true;
       Network.SetSendingEnabled(0, true);
    }
}

The logs on the server are:

• Running as server. Player ID is 0.
• New connection established (127.0.0.1:62466)
• Network protocol version -2130706432 connected
• New scope index 0 is now in scope for SceneID: 3 Level Prefix: 0
• Allocated 2 batches of size 50 for player 1
• Sent initalization to player 1
• Player connected 1
• 0 RPC function were removed with RemoveRPC
• 0 RPC function were removed with RemoveRPC
• Loading level
• Sent RPC call 'LoadLevel' to all connected clients
• Added RPC 'LoadLevel' to buffer.
• Sending data
• A client has disconnected from this server. Player ID 1, IP 127.0.0.1:62466
• Player disconnected 1

And on the client :

• Running as client. No player ID set yet.
• Connected to 127.0.0.1:25000
• Connected to server
• Set player ID to 3
• Received RPC 'LoadLevel'- mode 2 - sender 127.0.0.1:25000
• Relay RPC - name: LoadLevel - mode 2 - sender 127.0.0.1:25000
• Client
• Disconnected
• Sending data

Well, you can see on the client the two logs : "Client", followed by "Disconnected" which are the two calls to Debug.Log(Network.peerType) on LoadLevel and OnLevelWasLoaded

But the OnDisconnectedFromServer method is never called ...

What am I missing ?