Extraction only for certain slots

[DiabolicaTrix]

Hi, I am making a block with an inventory. Currently, hoppers can extract every single item, but I would like to only allow it to extract items from certain slots. I tried to override the extractItem method and only allow extraction for these slots but it also prevents the player from extracting items.

 

TileEntityShowcase.java: https://gist.github.com/DiabolicaTrix/771fec8aca0f080f9c75d271a5aa1ae5

TileEntityBase.java: https://gist.github.com/DiabolicaTrix/d849d0b351197871e6a689cc2de048c4

ItemStackHandlerBase.java: https://gist.github.com/DiabolicaTrix/35cd8e0ebd4b9353069324afcae2f273

ContainerShowcase.java: https://gist.github.com/DiabolicaTrix/b162d609e1244316fcb1d126546fe81f

ContainerShowcaseInventory.java: https://gist.github.com/DiabolicaTrix/cea6106842dfcdb70da34a6ae246194d

SlotShowcase.java: https://gist.github.com/DiabolicaTrix/2b18e4f4ad8dd3307a717e1211aea57c

[Draco18s]

Here's an example of an IItemHandler that does not allow extraction.

https://github.com/Draco18s/ReasonableRealism/blob/1.12.1/src/main/java/com/draco18s/hardlib/api/internal/inventory/OutputItemStackHandler.java

[DiabolicaTrix]

Works like a charm, thanks to both of you!