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I am trying to build a game where you are limited to a certain number of items in a stack, instead of generating the number of items, I track how many are present, and I use a spawner object that generates clones on dragStart to simulate dragging from a pile. what I want to do is if the player attempts to drag from the pile when there are no more items, then the item will tint to be darker and drag will be prevented. but I want to re-enable dragging if we drop an item into the area, thus adding to the stack. I was wondering if there was a way to prevent a drag conditionally onDragStart, or do I have to toggle drag on/off with conditionals outside of the onDragStart and onDragEnd events.