s&box Sync Properties Generator

What is [Sync]?

The [Sync] attribute on a property of a s&box Component sends its latest value to other players each time it changes. The owner of the GameObject controls the value — only the owner can change it. Supported types are unmanaged value types (int, bool, Vector3, float, structs), string, and a few reference types Facepunch serializes specifically: GameObject, Component, GameResource.

SyncFlags

Networked Collections

Plain List<T> and Dictionary<K,V>aren't networked — use NetList<T> and NetDictionary<K,V> instead. They share the same indexer / Add / Remove API but stream changes across the network.

public enum AmmoCount { Pistol, Rifle }

public class MyComponent : Component
{
  [Sync] public NetList<int> List { get; set; } = new();
  [Sync] public NetDictionary<AmmoCount,int> Dictionary { get; set; } = new();
}

NetList / NetDictionary do not support the [Property] attribute, and the [Change]callback won't fire on element-level mutations — only when the collection itself is reassigned.

Detecting Changes

public class MyComponent : Component
{
  [Sync, Change( "OnIsRunningChanged" )]
  public bool IsRunning { get; set; }

  private void OnIsRunningChanged( bool oldValue, bool newValue )
  {
    // The value of IsRunning has changed...
  }
}