private static void GetBuffer(ISimGameWorldReadWriteAccessor accessor, Entity?sourceOrDestination, out DynamicBuffer <InventoryItemReference>?buffer)
{
buffer = accessor.HasComponent <InventoryItemReference>(sourceOrDestination.GetValueOrDefault())
? (DynamicBuffer <InventoryItemReference>?)accessor.GetBuffer <InventoryItemReference>(sourceOrDestination.Value) : null;
}
