Add a callback for RecipeMap that called when a recipe is added

[Taskeren]

This feature gives the convenience to the 3rd-party mods that need to either read or modify the existing recipes, so they don't need to iterate them after the mod that owns the machine initialized.

[serenibyss]

Can this functionality not be achieved already by a downstream recipemap?

[Taskeren]

I don't use downstream before.
In my case, I want to know every recipe from a RecipeMap, and have something changed and add to my other RecipeMaps.
My solution for now, is to iterate the recipes after GT5U, but sometimes it loses some recipe maybe because some mods are registering later. With callbacks, no matter how late the recipe is added, it always triggers the callback, and I can handle them without loading phase restriction.

[serenibyss]

I don't use downstream before. In my case, I want to know every recipe from a RecipeMap, and have something changed and add to my other RecipeMaps. My solution for now, is to iterate the recipes after GT5U, but sometimes it loses some recipe maybe because some mods are registering later. With callbacks, no matter how late the recipe is added, it always triggers the callback, and I can handle them without loading phase restriction.

You can do this with a downstream recipe map just fine. For example for the implosion compressor, electric implosion compressor recipes are added via a downstream map:

GT5-Unofficial/src/main/java/gregtech/api/recipe/RecipeMaps.java

Lines 1252 to 1257 in f8d3383

	RecipeMaps.implosionRecipes.addDownstream(
	IRecipeMap.newRecipeMap(
	b -> BartWorksRecipeMaps.electricImplosionCompressorRecipes.doAdd(
	b.copy()
	.duration(1 * TICK)
	.eut(TierEU.RECIPE_UEV))));

[Taskeren]

I don't use downstream before. In my case, I want to know every recipe from a RecipeMap, and have something changed and add to my other RecipeMaps. My solution for now, is to iterate the recipes after GT5U, but sometimes it loses some recipe maybe because some mods are registering later. With callbacks, no matter how late the recipe is added, it always triggers the callback, and I can handle them without loading phase restriction.

You can do this with a downstream recipe map just fine. For example for the implosion compressor, electric implosion compressor recipes are added via a downstream map:

GT5-Unofficial/src/main/java/gregtech/api/recipe/RecipeMaps.java

Lines 1252 to 1257 in f8d3383

	RecipeMaps.implosionRecipes.addDownstream(
	IRecipeMap.newRecipeMap(
	b -> BartWorksRecipeMaps.electricImplosionCompressorRecipes.doAdd(
	b.copy()
	.duration(1 * TICK)
	.eut(TierEU.RECIPE_UEV))));

Replied on https://discord.com/channels/181078474394566657/603348502637969419/1339848796556755039
I think it's better to talk on Discord.