ClientRpc Weapon change and Network Identity Problems

Hey,

I am currently trying my best to programm an online FPS with the Networking functionality built into Unity. However while setiing up a script for equiping and unequiping weapons, I have run into some problems.

This is my code for doing this:

Code (CSharp):

1.  
2. [SerializeField]
3.  
4.     private Transform weaponHolder;
5.  
6.     [SerializeField]
7.     private Transform secondaryWeaponHolster;
8.  
9.     [SerializeField]
10.     private Transform primaryWeaponHolster;
11.  
12. [SerializeField]
13.     private GameObject primaryWeapon;
14.  
15.     [SerializeField]
16.     private GameObject secondaryWeapon;
17.  
18.     private GameObject currentWeapon;
19.  

Code (CSharp):

1.    
2.  
3. [Command]
4.     void CmdEquipWeapon(GameObject _weapon)
5.     {
6.         RpcEquipWeapon(_weapon);
7.     }
8.  
9.  
10. [ClientRpc]
11.     void RpcEquipWeapon(GameObject _weapon)
12.     {
13.         RpcUnequipCurrentWeapon();
14.         currentWeapon = _weapon;
15.  
16.         currentWeapon.transform.SetParent(weaponHolder);
17.         currentWeapon.transform.position = weaponHolder.position;
18.         currentWeapon.transform.rotation = weaponHolder.rotation;
19.     }
20.  
21.     [ClientRpc]
22.     void RpcUnequipCurrentWeapon()
23.     {
24.         if(currentWeapon != null)
25.         {
26.             if(currentWeapon == primaryWeapon)
27.             {
28.                 currentWeapon.transform.SetParent(primaryWeaponHolster);
29.                 currentWeapon.transform.position = primaryWeaponHolster.position;
30.                 currentWeapon.transform.rotation = primaryWeaponHolster.rotation;
31.             }
32.             else if(currentWeapon == secondaryWeapon)
33.             {
34.                 currentWeapon.transform.SetParent(secondaryWeaponHolster);
35.                 currentWeapon.transform.position = secondaryWeaponHolster.position;
36.                 currentWeapon.transform.rotation = secondaryWeaponHolster.rotation;
37.             }
38.             currentWeapon = null;
39.         }
40.     }

Some explanations:

• I have two weapons: a primary and a secondary (these are already instantiated (in the Start() method))
• For both I have "Holsters" (basically just positions on the player, where they can passively stored)
• The weapon Holder is a transform that represents the hands of the player
• current weapon stores the weapon which is currently being used. This variable is later accesed by another script that "shoots"

This code works offline (if I remove the command and make the Rpcs normal voids). However when I try it out on a server I get an error stating that my weapon object needs a network Identity. I tried adding one but it did not help.

I also searched on the forums for solutions, but the only one I found was this one:
https://forum.unity.com/threads/networking-weapon-switching-in-a-multiplayer-fps.455277/
(It did not work...)

Thanks in advance
Philipp

 

What I did for weapons was use a synchronized integer index representing the weapon equipped for each slot.

i.e.
0 = nothing equipped
1 = gun
2 = sword
3 = axe

Then when the index changes you can destroy the old weapon attached to the transform node, then instantiate and attach a new weapon to the node.