vrctools@docs:~/docs/world-utils/guides$ man owner-feature-gate

World Utilities / Guides

Owner-controlled features

Let the instance owner switch a feature off for everyone while each player can still opt out.

Some features need two switches: the instance owner decides whether a feature is available at all (say, a loud particle show), and each player decides whether they personally want it. The feature should run only when both agree.

[ Synchronized Boolean ] "show allowed"  (owner panel) ─┐
                                                        ├─▶ [ Boolean Operation: AND ] ─▶ [ Local Boolean ] "show on"
[ Persisted Boolean    ] "show wanted"   (settings)   ──┘                                       │
                                                                                                 ▼
                                                                              [ Object Toggle ] Particle Show

Steps

Following the best practices, each value goes into the group matching its kind.

1. Global switch - add a Synchronized Boolean named Show Allowed to Global Settings, default true. Put a Toggle Button for it on an owner-only panel (see below).
2. Personal switch - add a Persisted Boolean named Show Wanted to Persisted Settings with key settings.show_wanted, default true, and a Toggle Button in the regular settings menu.
3. Result - add a Local Boolean named Show On to Local Settings/Derived. Its default does not matter; the converter overwrites it.
4. Combine - add a Boolean Operation converter:
   • Target: Type LOCAL, Target Show On, Operation AND
   • A: Type SYNCHRONIZED, Component Show Allowed
   • B: Type LOCAL, Component Show Wanted
5. Apply - add an Object Toggle with source Show On and the particle system as target.

Why a local result? The converter runs on every client. Writing into a synchronized value would make every player take ownership of it in turn - a local result costs nothing and is always correct.

Restricting the owner panel

Anyone can write to a synchronized value, so the owner switch is only as protected as the UI that changes it. World Utilities doesn’t decide who counts as “owner” for you - instance owner, world author, a moderator list - but a tiny script can show the panel to the right people:

using UdonSharp;
using UnityEngine;
using VRC.SDKBase;

public class OwnerOnly : UdonSharpBehaviour {
  public GameObject panel;

  private void Start() { this._Refresh(); }

  public override void OnPlayerLeft(VRCPlayerApi player) {
    // mastership moves to another player when the master leaves - re-check once it has settled
    this.SendCustomEventDelayedSeconds(nameof(this._Refresh), 1f);
  }

  public void _Refresh() {
    // the instance master is usually the person who created the instance
    this.panel.SetActive(Networking.IsMaster);
  }
}

Networking.IsMaster follows the instance master, which changes when that player leaves. If you need the actual instance creator, check Networking.IsInstanceOwner instead.