Photon/Unity - 尝试退出游戏场景进入菜单场景时遇到错误

Question

Upon entering the game, I instantiate the menu and connect to the photon server. In game scene i set onClick event for button to call the method LeaveRoom() .

public class ControlUI : MonoBehaviourPunCallbacks
{
    public void LeaveRoom()
    {
        Destroy(RoomManager.Instance.gameObject);
        StartCoroutine(Disconnect());
    }

    private IEnumerator Disconnect()
    {
        PhotonNetwork.LeaveRoom();
        while (PhotonNetwork.InRoom)
            yield return null;
        SceneManager.LoadScene("Lobby");
    }
}

In result i leave game scene and exit to menu, but in console i get:

Operation SetProperties (252) not called because client is not connected or not ready yet, client state: Leaving
UnityEngine.Debug:LogError (object)
Photon.Realtime.LoadBalancingClient:DebugReturn (ExitGames.Client.Photon.DebugLevel,string) (at Assets/Photon/PhotonRealtime/Code/LoadBalancingClient.cs:2564)
Photon.Realtime.LoadBalancingClient:CheckIfOpCanBeSent (byte,Photon.Realtime.ServerConnection,string) (at Assets/Photon/PhotonRealtime/Code/LoadBalancingClient.cs:2493)
Photon.Realtime.LoadBalancingClient:OpSetPropertiesOfRoom (ExitGames.Client.Photon.Hashtable,ExitGames.Client.Photon.Hashtable,Photon.Realtime.WebFlags) (at Assets/Photon/PhotonRealtime/Code/LoadBalancingClient.cs:2141)
Photon.Realtime.Room:SetCustomProperties (ExitGames.Client.Photon.Hashtable,ExitGames.Client.Photon.Hashtable,Photon.Realtime.WebFlags) (at Assets/Photon/PhotonRealtime/Code/Room.cs:430)
Photon.Pun.PhotonNetwork:SetLevelInPropsIfSynced (object) (at Assets/Photon/PhotonUnityNetworking/Code/PhotonNetworkPart.cs:2178)
Photon.Pun.PhotonNetwork:NewSceneLoaded () (at Assets/Photon/PhotonUnityNetworking/Code/PhotonNetworkPart.cs:1475)
Photon.Pun.PhotonHandler/<>c:<Start>b__13_0 (UnityEngine.SceneManagement.Scene,UnityEngine.SceneManagement.LoadSceneMode) (at Assets/Photon/PhotonUnityNetworking/Code/PhotonHandler.cs:126)
UnityEngine.SceneManagement.SceneManager:Internal_SceneLoaded (UnityEngine.SceneManagement.Scene,UnityEngine.SceneManagement.LoadSceneMode)

I found this article and tried to make a call in a similar way:

public void LeaveRoom()
{
    PhotonNetwork.LeaveRoom();
}
 
public override void OnLeftRoom()
{
    SceneManager.LoadScene("Lobby");
 
    base.OnLeftRoom();
}

but it didn't work for me. By the button phrase my gameController (player) is removed from the room, but the scene doesn't load, the scene doesn't trigger the call OnLeftRoom() .

Answer 1

Don't destroy RoomManager before you leave. Try something like this

public void BackToLobby()
{
    StartCoroutine(IEBackToLobby());
}

IEnumerator IEBackToLobby()
{
    if (PhotonNetwork.InRoom)
    {
        PhotonNetwork.LeaveRoom();
        Destroy(RoomManager.Instance.gameObject);
    }
    else
        yield return null;

    SceneManager.LoadScene("Lobby");
}