s&box

nixx 8 days ago

Note that if you try to change the position of the GameObject inside this method, it will not work if you are using SetParent with keepWorldPosition: true (the default).
https://github.com/Facepunch/sbox-issues/issues/8724

There is a workaround:

 	protected override void OnParentChanged( GameObject oldParent, GameObject newParent )
	{
		_ = MoveAfterwards();
	}

	// we need to wait so we're outside of OnParentChanged
	async Task MoveAfterwards()
	{
		await Task.Yield();

		// it's possible the owner changed during that time, so tell the current owner of the object to move it.
		MoveIntoPosition();
	}

	[Rpc.Owner]
	public void MoveIntoPosition()
	{
		WorldTransform = GameObject.Parent.WorldTransform;
	}

You may not need the third level of indirection if you're not changing owner at the same time, so you can just put the movement directly after Task.Yield().