[1.14.4] Modifying an ItemStack with a custom crafting recipe?

[Invilis]

I have a class for an Item (in this case it extends ArmorItem) with some boolean values. I want to have a recipe that will switch these boolean values, and it depends on the actual Items in the recipe. The main Item is something like a piece of armor, the other is some item that will change the properties of the armor (through the use of the booleans) but keep everything else: durability, enchantments, ect.

I am realizing the class will only be instantiated once for all ItemStacks of this Item, so I suppose I would need to store the information in the ItemStack NBT data or something, but I still need to do something when the crafting takes place.

 

I'm fairly certain the json recipes won't do anything like this, so I need to have it in code. How can this be done?

In the future, for Minecraft 1.16+, I would like to use the smithing table in sort of the same way where the item is upgraded but I don't want another Item, the Item will be the same because there will be many variations and they won't be that much different.

Edited April 30, 2020 by Invilis

[Niprow]

this should help:

 

[Invilis]

That's good, but not quite there yet. I need some way to tell what Item I am using in the recipe because it will have a specific effect. Using getContainerItem I can change the resulting Item but I need the change to depend on what the secondary Item was.

 

The only thing I can think of is to make a custom crafting table block, that way I could have complete control over the ItemStacks involved, at least that's my theory. A game theory.

Edited May 1, 2020 by Invilis

[superminerJG]

I believe you'll need to subclass net.minecraft.item.crafting.SpecialRecipe to create a special crafting recipe (look at ArmorDyeRecipe)

 

Then you need to register a recipe serializer for said SpecialRecipe.