Multiplayer Action

Hi, i want to destroy a barrel in multiplayer game. I made a script, but only server can destroy barrel. Clients are not able to do that. Some ideas what i do wrong?

Code (csharp):

1.  
2. public class Barrel: NetworkBehaviour {
3.  
4.     [Client]
5.     void OnMouseDown()
6.     {
7.             CmdTest();
8.     }
9.    
10.     [Command]
11.     void CmdTest()
12.     {
13.         Destroy(gameObject);
14.         RpcDestroy();
15.     }
16.    
17.     [ClientRpc]
18.     void RpcDestroy()
19.     {
20.         Destroy(gameObject);
21.     }
22. }
23.  

 

Code (CSharp):

1. [Command]
2. void CmdTest()
3. {
4.    NetworkServer.Destroy(gameObject);
5. }

This should do the trick. It will be destroyed on server and then applied to all connected players

 

Your, and my script example is working well, but only if host press the barrel. If client click on the barrel nothing happens, even on client.

 

Because if it's an non-player object then you have to re-assign the authority before sending a command.

But before reassigning authority check this one, I want to see if it works.

Code (CSharp):

1. [Command]
2. public void CmdTest(GameObject gameObject)
3. {
4.    NetworkServer.Destroy(gameObject);  
5. }

if not then:

Code (CSharp):

1. [Command]
2. public void CmdAssignAuthority(GameObject barrelObject, NetworkConnection myConnection)
3. {
4.    barrelObject.GetComponent<NetworkIdentity>().AssignClientAuthority(myConnection);
5. }

and then call destroy.

NetworkConnection you can find on any NetworkBehaviour script and it's called: connectionToClient

 

Code (csharp):

1. CmdAssignAuthority(barrel, connectionToClient);

or

Code (csharp):

1. CmdAssignAuthority(barrel, NetworkBehaviour.connectionToClient);

are not working. I don't understand how can i make it work

 

This is my script for now:

Code (csharp):

1.  
2. using UnityEngine;
3. using UnityEngine.Networking;
4. using System.Collections;
5.  
6. public class BarrelDestroying: NetworkBehaviour {
7.  
8.  
9.         public NetworkConnection connectionToClient;
10.         public GameObject barrel;
11.  
12.  
13.     [Client]
14.     void OnMouseDown()
15.     {
16.             CmdAssignAuthority(barrel, connectionToClient);
17.     }
18.    
19.     [Command]
20.     public void CmdAssignAuthority(GameObject barrelObject, NetworkConnection myConnection)
21.     {
22.       barrelObject.GetComponent<NetworkIdentity>().AssignClientAuthority(myConnection);
23.       Debug.Log("Acces Granted");
24.     }
25. }
26.  

Im getting an error:

Code (csharp):

1.  
2. UNetWeaver error: Command [BarrelDestroying:CmdAssignAuthority] cannot use a NetworkConnection as a parameter. To access a player object's connection on the server use connectionToClient
3.  

I don't understand what am i doing wrong.

 

Sorry I misguided you, I noticed myself that you cannot pass NetworkConnection to [Command] method.
Well if you want it to do something when clicked maybe this approach:

Code (CSharp):

1. void Update()
2. {
3.    if( ! isLocalPlayer) return;
4.  
5.    if(Input.GetKeyDown(Mouse.0)
6.    {
7.      Ray ray = Camera.main.ScreenPointToRay(Input.mousePosition);
8.      RaycastHit hit;
9.      if(Physics.Raycast(ray, out hit, 100f)
10.      {
11.         CmdDoSomethingWithBarrel(hit.collider.gameObject);
12.      }
13. }

Code (CSharp):

1. [Command]
2. public void CmdDoSomethingWithBarrel(GameObject barrel)
3. {
4.    barrel.GetComponent<BarrelComponent>().DoSomething();
5.    NetworkServer.Destroy();
6. }

if not then this last chance:

Code (CSharp):

1. [Command]
2. private void CmdReassignAuthority(GameObject barrel)
3. {
4.    barrel.GetComponent<NetworkIdentity>().AssignClientAuthority(connectionToClient);
5.    NetworkServer.Destroy();
6. }
7.  
8.  

About that NetworkConnection you missunderstood me or I described it poorly, anyway you can access it in every NetworkBehaviour component just by typing: connectionToClient, you don't have to cache it or anything

 

Ehh..
When im using the second solution client on start receive an error:

Code (csharp):

1.  
2. InvalidOperationException: out of sync
3.  

When client click on barrel:

Code (csharp):

1.  
2. Trying to send command for object without authority.
3.  

Both not working.
Maybe someone from unity team has solution for this?
If there is no solution for that, then how to make multiplayer interactions with door, etc?