Basically I'm trying to create a crafting system, where instead of creating a shape and getting a result in the 3x3 table, you open up the custom interface, put the two items in their respective slots and get the output. (e.g., instead of surrounding an apple with gold, put the gold in the first slot, apple in the second, and the result is a golden apple.) I've taken a look at ContainerWorkbench, but what really is the proper way to create a "crafting" slot that looks specifically for two items and provides you with a result?
I already have the interface working, gui, tileentity (which I might not need...) etc. Just wondering specifically about the crafting mechanic. Thanks.