[PhotonNetwork] How can I stock a allocateViewID from a player and reuse it later with another player ?

Questions & Answers
1

Hi everybody,

I’m trying to create a multiplayers game for fun. But I have a little problem with OnPhotonSerializeView() and/or the viewID (i don’t know the real cause of my issue).

In short, when you join a room, you are not in the game yet. There is a list of players split in 2 teams. Here is the problem :

  • if the “master” creates the room and begins to play, and another player joins the game later, only the first one sees the other moves.
  • but if the 2 players enter the game together, they see each other moving… Strange…

Now, how i tried to do that :
in the room, if you are the master, you start the game by opening the map and sending a rpc to the ready players to join.

When a player joins the game, he sends a buffered rpc in order to :

  • spawn in the map for each player in game
  • add his name in a list of players in game that all the players hold (and when a player joins the others, he knows who he has to spawn in his map)

so, the code to spawn (in short) followed by the script to synchronize the movement :

`

public void SpawnOnNetwork ()
{
	photonView.RPC("NewPlayer", PhotonTargets.AllBuffered, PhotonNetwork.player, PhotonNetwork.AllocateViewID());
}

[RPC] void NewPlayer (PhotonPlayer p, int id)
{
	// If i'm inGame => spawn the player
	if ((State)PhotonNetwork.player.customProperties["s"] == State.inGame)
		StartCoroutine(SpawnPlayer(p, id));

	Add (p, id);  // List<Player> avec Player = (PhotonPlayer , int)
}

IEnumerator SpawnPlayer (PhotonPlayer p, int id)
{
	Transform newPlayer = Instantiate(player, Vector3.zero, player.transform.rotation) as Transform;
	newPlayer.GetComponent<PhotonView>().viewID = id;

	if (p.isLocal) {
		newPlayer.name = "MyPlayer";
		newPlayer.position = new Vector3 (Random.Range(0.5f,1.5f), 1.5f, Random.Range(0.5f,1.5f));
		ActivePlayer (newPlayer); // set scripts to control the player
	}
	else {
		newPlayer.name = "OtherPlayer";
		yield return StartCoroutine(AskPosition(p)); // get the position of the player
		Player_Controller pc = newPlayer.GetComponent<Player_Controller>() as Player_Controller;
		pc.startPos = lastOtherPlayerPos;
		pc.endPos = lastOtherPlayerPos;
		lastOtherPlayerPos = Vector3.zero;
	}
}

IEnumerator AskPosition (PhotonPlayer p)
{
	photonView.RPC("Give", p, PhotonNetwork.player);
	while (lastOtherPlayerPos.Equals(Vector3.zero))
		yield return null;
}

[RPC] void Give (PhotonPlayer p)
{
	photonView.RPC("Receive", p, GameObject.Find("MyPlayer").transform.position);
}

[RPC] void Receive (Vector3 position)
{
	lastOtherPlayerPos = position;
}

public void SpawnPlayers ()
{
	foreach (Player p in playersInGame)
		StartCoroutine(SpawnPlayer (p.p, p.id));
}


public class Player_Controller : Photon.MonoBehaviour {

...
public Vector3 startPos;
public Vector3 endPos;
...

void Update ()
{
	if (photonView.isMine)
	{
		// control of the player
	}
	else
	{
		SyncedMovement();
	}
}

void SyncedMovement()
{
	...
	syncTime += Time.deltaTime;
	transform.position = Vector3.Lerp(startPos, endPos, syncTime / syncDelay);
	transform.rotation = Quaternion.Lerp(startRot, endRot, syncTime / syncDelay);
}

void OnPhotonSerializeView(PhotonStream stream, PhotonMessageInfo info)
{
	if (stream.isWriting)
	{
		stream.SendNext(transform.position);
		stream.SendNext(transform.rotation);
        ...
	}
	else
	{
		endPos = (Vector3)stream.ReceiveNext();
		startPos = transform.position;
		endRot = (Quaternion)stream.ReceiveNext();
		startRot = transform.rotation;
        ...
		
		syncTime = 0f;
		syncDelay = Time.time - lastSyncTime;
		lastSyncTime = Time.time;
	}
}

}
`

last time, i had a alert in unity console about it : “Received OnSerialization for view ID 1001. We have no such PhotonView!” but i don’t know where it comes from…

if you have a solution, or a better idea to do sth similar, i’m interested !!!
Thanks a lot for your time !!!
Antoine
ps: sorry for any language mistakes… :wink:

2

Actually, I’m pretty sure the issue comes from the viewID and the AllocateViewID…
However, i don’t understand why if the both players spawn at the same time, it works… But, if the id is stocked in the list and used when the player joins the game later, it doesn’t work anymore :confused: