Third Party PUN2 - OnPhotonSerializeView() not giving any feedback.

I have a simple script attached to a game object in my scene, its being observed by a PhotonView:

The script looks like this:

Code (CSharp):

1. using Photon.Pun;
2. using System.Collections;
3. using System.Collections.Generic;
4. using UnityEngine;
5.  
6. public class PVTest : MonoBehaviour, IPunObservable {
7.  
8.     private string recievedData = "Nothing!";
9.  
10.     void Update()
11.     {
12.         print(recievedData);
13.     }
14.  
15.     void IPunObservable.OnPhotonSerializeView(PhotonStream stream, PhotonMessageInfo info)
16.     {
17.         if (stream.IsWriting)
18.         {
19.             stream.SendNext(PhotonNetwork.NickName);
20.         }
21.         else if (stream.IsReading)
22.         {
23.             recievedData = stream.ReceiveNext().ToString();
24.         }
25.     }
26. }

I open two instances of my game (One in the editor, the other "Build and Run") and the console only prints the default of "Nothing!", like the OnPhotonSerializeView isn't working at all. What am I doing wrong here?

 

You have to register this class instance to get the callbacks:
Call PhotonNetwork.AddCallbackTarget(this) and PhotonNetwork.RemoveCallbackTarget(this).

Some more about that:
https://doc.photonengine.com/en-us/pun/v2/getting-started/dotnet-callbacks

 

I did this. Unfortunately it didn't work.

Code (CSharp):

1. using Photon.Pun;
2. using UnityEngine;
3.  
4. public class PVTest : MonoBehaviourPunCallbacks {
5.  
6.     private string recievedData = "Nothing!";
7.  
8.     public override void OnEnable()
9.     {
10.         base.OnEnable();
11.         PhotonNetwork.AddCallbackTarget(this);
12.     }
13.  
14.     public override void OnDisable()
15.     {
16.         base.OnDisable();
17.         PhotonNetwork.RemoveCallbackTarget(this);
18.     }
19.  
20.     void Update()
21.     {
22.         print(recievedData);
23.     }
24.  
25.     public void OnPhotonSerializeView(PhotonStream stream, PhotonMessageInfo info)
26.     {
27.         if (stream.IsWriting)
28.         {
29.             print("Working!");
30.             stream.SendNext(PhotonNetwork.NickName);
31.         }
32.         else if (stream.IsReading)
33.         {
34.             recievedData = stream.ReceiveNext().ToString();
35.         }
36.     }
37. }
38.  

 

You should find this works okay...

Code (CSharp):

1. using Photon.Pun;
2. using UnityEngine;
3.  
4. public class PVTest : MonoBehaviourPun, IPunObservable
5. {
6.     private string recievedData = "Nothing!";
7.  
8.     public void OnEnable()
9.     {
10.         PhotonNetwork.AddCallbackTarget(this);
11.     }
12.  
13.     public void OnDisable()
14.     {
15.         PhotonNetwork.RemoveCallbackTarget(this);
16.     }
17.  
18.     void Update()
19.     {
20.         if (photonView.IsMine)
21.             Debug.Log(PhotonNetwork.NickName);
22.         else
23.             Debug.Log(recievedData);
24.     }
25.  
26.     public void OnPhotonSerializeView(PhotonStream stream, PhotonMessageInfo info)
27.     {
28.         if (stream.IsWriting)
29.         {
30.             stream.SendNext(PhotonNetwork.NickName);
31.         }
32.         else if (stream.IsReading)
33.         {
34.             recievedData = stream.ReceiveNext().ToString();
35.         }
36.     }
37.  
38. }

Just to clarify, you should add the script to your player object and drag it into the ObservedComponents field in the PhotonView component and set synchronization mode to UnreliableOnChange.

Also, bear in mind that OnPhotonSerializeView will only be called when you have at least 2 clients in the same room.