SyncVar Hook help

Unity Engine
1

I am a bit confused and would like to ask for some help getting this piece of code to work.

Here is what i try to accomplish:

  1. I have a button that trigger: “OpenMenu”
  2. “anim_Menu.SetBool (“isOut”, true);” trigger an animation that moves the menu into the scene

It does not work!

using UnityEngine;
using UnityEngine.Networking;
using System.Collections;
using UnityEngine.UI;

public class UI_Menu : NetworkBehaviour {

    public Animator anim_Menu;
    public Button btn_OpenMenu;

    [SyncVar(hook = "UI_DoMenu")] private bool _openMenu = false;

    // Use this for initialization
    void Awake () {
        anim_Menu.SetBool ("isOut", true);
    }

    void UI_DoMenu (bool value) {
        print ("UI_DoMenu: " + value);
        if (_openMenu) {
            OpenMenu ();
        }
    }

    [Client]
    public void OpenMenu () {
        print ("OpenMenu: " + isLocalPlayer);
        if (isLocalPlayer) {
            anim_Menu.SetBool ("isOut", true);
            btn_OpenMenu.interactable = false;
            Cmd_OpenMenuProperty (true);
        }
    }

    [Command]
    void Cmd_OpenMenuProperty (bool value) {
        print ("Cmd_OpenMenuProperty: " + hasAuthority);

        if (hasAuthority) {
            _openMenu = value;
        }
    }
}
2

Somewhat fixed with this code, but it does not work if i click on the client side:

using UnityEngine;
using UnityEngine.Networking;
using System.Collections;
using UnityEngine.UI;

public class UI_Menu : NetworkBehaviour {

    public Animator anim_Menu;
    public Button btn_OpenMenu;

    [SyncVar(hook = "SV_DoMenu")] private bool _openMenu = false;

    // Use this for initialization
    void Awake () {
        SetMenu ();
    }


    void SetMenu() {
        anim_Menu.SetBool ("isOut", true);
    }

    public void Btn_OpenMenu () {
        print ("Btn_OpenMenu: " + isLocalPlayer);
        Cmd_OpenMenuProperty (true);
    }

    [Command]
    void Cmd_OpenMenuProperty (bool value) {
        print ("Cmd_OpenMenuProperty: " + hasAuthority);
        _openMenu = value;
    }

    public void SV_DoMenu (bool value) {
        print ("SV_DoMenu: " + value);
        if (value) {
            Client_OpenMenu ();
        }
    }

    [Client]
    public void Client_OpenMenu () {
        print ("Client_OpenMenu");
        anim_Menu.SetBool ("isOut", false);
        btn_OpenMenu.interactable = true;
        Cmd_OpenMenuProperty (true);
    }

}

I have the following setup:

[ 20mb image hosting](http:// 20mb image hosting)

Do i need NetworkIdentity for these UI’s given that i try to trigger it locally. When i add it, things looks weird.

Here is the menu i move, down in the bottom left is the one that trigger the animation.

upload photos

3

If I am not mistaken you have to assign your _openMenu variable in the hook function. I hope it helps.

    public void SV_DoMenu (bool value) {
        _openMenu = value; <-- Here
        print ("SV_DoMenu: " + value);
        if (value) {
            Client_OpenMenu ();
        }
4

I get: “Trying to send command for object without authority.” on the

public void Btn_OpenMenu () {
        Cmd_OpenMenuProperty (true);
    }

I do not really understand how to fix that as the menu itself, IMHO, do not need to be a network object as it is the bool that trigger. The only thing i want to do is to bring down the menu on both sides.

What would be the simplest way of doing that?

5

If you want to allow client to call a function on the server without needing [Command]s or authority, you need to use Network Messages. You also don’t need Network Behaviours to send Messages

6

When I get the “Trying to (…) without authority” then I disable this component and I only enable it when it’s loaded OnStartLocalPlayer like this but remember to disable it on the prefab first. Hope this helps!

public override void OnStartLocalPlayer()
{
    this.enabled = true;
}