Can't get GameObjects to display on client upon connecting to server

Posted the question on Unity Answers but no one has replied yet so I thought I would try my luck here as well.

Here's the link: https://answers.unity.com/questions...o-display-on-client-upon-con.html#answer-form

Insights of any kind are very much welcome! Thanks in advance.

 

You're using NetworkServer.SpawnWithClientAuthority incorrectly. You're instantiating and calling that spawn method in a clientrpc, so doing so on every connected client. You can only spawn a networked object on the server though. You should redesign your code so all of the instantiate/spawn calls only happen on the server.

 

Thanks for the reply!

Alright, I've been changing things around a lot and it some things are quite out of place as I'm desperate and don't really know what I'm doing. I moved all the instantiate/spawn calls to to the Command, but now I don't seem to be able to spawn objects at all on the client. Works fine for the host still.

Here's the new function:

Code (CSharp):

1. void CmdHospitalizePlayer() {  
2.         HospitalPanel = GameObject.Find("HospitalizedPanel");
3.         PlayerNameText.text = PlayerName;
4.         HospitalizedPlayer = Instantiate(HospitalizedPlayerPrefab);
5.         HospitalizedPlayer.name = PlayerName;
6.         if (!(GameObject.Find("/Canvas/LeftPanel/HospitalPanel/HospitalizedPanel/" + HospitalizedPlayer.name))) {
7.             HospitalizedPlayer.transform.SetParent(HospitalizedPanel);
8.         } else {
9.             Debug.Log(HospitalizedPlayer.name + " is already hospitalized.");
10.         }
11.         NetworkServer.SpawnWithClientAuthority(HospitalizedPlayer, connectionToClient);
12.     }

I tried removing the NetworkServer Spawn completely but it didn't change anything.

 

What are you doing with the parenting there? That parenting won't be part of what the server sends to all the clients when it spawns the object. Also it is unsupported to have a NetworkIdentity on a child object, only on the root gameobject.

 

Code (CSharp):

1. [Command]
2.     void CmdHospitalizePlayer() {  
3.         HospitalizedPlayer = Instantiate(HospitalizedPlayerPrefab);
4.         HospitalizedPlayer.name = PlayerName;
5.         if (!(GameObject.Find("/Canvas/LeftPanel/HospitalPanel/HospitalizedPanel/" + HospitalizedPlayer.name))) {
6.             RpcHospitalizePlayer();
7.         } else {
8.             Debug.Log(HospitalizedPlayer.name + " is already hospitalized.");
9.         }
10.     }
11.  
12.     [ClientRpc]
13.     void RpcHospitalizePlayer() {
14.         HospitalPanel = GameObject.Find("HospitalizedPanel");
15.         PlayerNameText.text = PlayerName;
16.  
17.         HospitalizedPlayer.name = PlayerName;
18.  
19.         HospitalizedPlayer.transform.SetParent(HospitalPanel.transform);
20.     }

Tried it this way now. The prefabs still get set on the HospitalPanel only on the host. Sorry for being difficult, still trying to wrap my head around all this multiplayer stuff.

 

That's not going to work either. HospitalizedPlayer is Instantiated on the server, but not even spawned anymore. You're also trying to use a reference to it on the client when the client isn't the one that established the reference. That type of stuff is better placed in the Start method of a script on the object itself.

 

Would you mind giving an example of how it should look like?

 

I don't exactly understand what you're trying to do, so I can't really. What I would do is instantiate/spawn your object from a prefab on the server. Whatever you need to do with it in relation to other scene objects on the clients when it spawns on them I'd do in a Start method. I would not set another object to be the spawned object's parent. Leave the object in the root of the scene hierarchy.

If this is a UI object, I wouldn't do it this way at all. Instead I'd just create the UI object locally and send information back and forth between the clients and server via something like Unet Messages. The Unet instantiate/spawn stuff isn't really made for use with objects in a UI hierarchy.

 

It is indeed all UI. I'll give those Messages a try.

 

Could you possibly come up with an example build of how it should look like? I've banged my head against this for long it's starting to be really frustrating to see no progress.