[1.8] How can I change item's NBT during crafting

[KriszDev]

Hello everyone.

 

I have an item let's call it PowerDrill and I want to craft it with a battery item to charge it (change a specific field in NBT and give both back). I have the charge level stored in both item's NBT. How can I make it possible to change their NBT when they are placed in a crafting grid?

 

Thanks for any reply.

[Failender]

create ur own implementation of IRecipe and in getCraftingResult add the needed NBT to the stack before returning it

[KriszDev]

create ur own implementation of IRecipe and in getCraftingResult add the needed NBT to the stack before returning it

 

Many many thanks. What does getRecipeSize() do? When do I have to change it if I have a shapeless recipe?