So, Is there a way to have an item or tile entity with an inventory that will only be as big as it needs to be? Kind of like an ArrayList implementation? Essentially I have an item that holds different cards, and you should be able to put as many cards in it as you get. So, I have my CardData objects that represent each card you can get, so each "stack" should be the instance of the card item, the rarity, and the quantity of that type. So if you had one "card1" as a common, but two " card1" as rares, then they should be separate. I don't want to just make the inventory reeeealy big to compensate for not having a set size. Is this possible? Like I know you can create a modified version of an ItemStackHandler by extending the one forge provides, but I'm not really how to go about it if that makes sense.

@diesieben07 yeah, its only for the item that can only hold items from my mod, so that shouldn't be a problem. I just have to figure out how to take the IItemHandler and apply it to a container with searchbar, and filter and scrollwheel.. fuuuun times