[1.16.4]Best Practice getting type of items for DataGeneration?

[Cratthorax]

Good morning,

so I'm currently in the process of converting my recipes to DataGeneration(1.7.x to 1.16.x).

In the past I would simply copypasta groups of code blocks, primarily due to laziness and lack of time. I want to change that, and if it's just to render my code a little bit more professionell. 

I remember in the past you could "group up" item types by calling their material, but no matter how much I'm trying to convert this method, and browsing the Forge/MC Snapshot files, I don't think this method is available any more(correct me if I'm wrong). So, in code, here's what I mean:

 

//I want to turn this...
ShapelessRecipeBuilder.shapelessRecipe(
	Items.STRING)
          .addIngredient(Items.WHITE_WOOL, 2)
          .addCriterion("has_wool", hasItem(Items.WHITE_WOOL)).build(consumer);

ShapelessRecipeBuilder.shapelessRecipe(
	Items.STRING)
          .addIngredient(Items.BLACK_WOOL, 2)
          .addCriterion("has_wool", hasItem(Items.BLACK_WOOL)).build(consumer);
//...into something like this...
ShapelessRecipeBuilder.shapelessRecipe(
	Items.STRING)
          .addIngredient((any)ItemType(of).WOOL, 2)
          .addCriterion("has_wool", hasItem((any)ItemType(of).WOOL)).build(consumer);
	

 

Material, ItemType, or an ItemArray, what would you recommend? I'd need that info to actually browse the correct files.

Edited October 29, 2021 by Cratthorax

[Cratthorax]

Utilizing tags it needs an IItemProvider?

[Cratthorax]

Some of the recipe methods, like .smeltingRecipe(), won't compile without casting an IItemProvider argument in front of ItemTags.WOOL.

Let me see if it does what's proposed.

[Cratthorax]

Can I even nest a for loop into the .smeltingRecipe() method?

[Cratthorax]

And I don't know how to loop through ItemTags. Unfortunately a List.array would only work for strings. DF!