public void AddDoorItem(Door door, DoorItem item) { if (door.Items == null) { door.Items = new List <DoorItem>(); } door.Items.Add(item); if (door.TryGetDoorOwners(out CSteamID steamID, out CSteamID groupID)) { item.ChangeTransformOwner(steamID, groupID); } item.UpdateSign(string.Empty); }