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Posted

Hello, Im beginning to learn how to mod with forge, I previously was messing around with spigot but wanted to switch from plugins to full fledged modding.

I'm trying to make a recipe for turning a block into charcoal
 

  ShapedRecipeBuilder.shaped(RecipeCategory.MISC, ModItems.CHARCOAL_BLOCK_ITEM.get())
    .pattern("CCC")
    .pattern("CCC")
    .pattern("CCC")
    .define('C', Items.CHARCOAL)
    .unlockedBy(getHasName(Items.CHARCOAL), has(Items.CHARCOAL))
    .save(pRecipeOutput);

This is under an Override build Recipes class and registered with data gen

However I get this error that I don't understand the reason behind why I'm getting it
 

Quote

java.lang.ClassCastException: class net.minecraft.world.item.crafting.ShapelessRecipe cannot be cast to class net.minecraft.world.item.crafting.AbstractCookingRecipe (net.minecraft.world.item.crafting.ShapelessRecipe and net.minecraft.world.item.crafting.AbstractCookingRecipe are in module [email protected] of loader 'TRANSFORMER' @7c5d1d25)

This removes the normal recipe of smelting any wood log into charcoal, but my custom recipe is there and works

Any help with the proper way of doing this and solving this issue is appreciated :)

ps:
Is the only way to make recipes with forge is through Minecraft's datapack system??
Am I to belive that Spigot has a better implementation of custom recipes then Forge, a Mod API??

Posted

Pretty sure you get that error because ShapelessRecipe is only for recipes that are crafted using a grid, and don't need to be arranged in a certain way. You have to use AbstractCookingRecipe for any recipe that uses the [smeltable item - fuel item - result item] combination.

But I don't think you really need to be messing with code here for recipes. You should just be able to copy what the minecraft\recipes\iron_ingot_from_smelting_raw_iron.json does and replace the ingredient item and your result item:
 

{
  "type": "minecraft:smelting",
  "category": "misc",
  "cookingtime": 200,
  "experience": 0.7,
  "group": "iron_ingot",
  "ingredient": {
    "item": "minecraft:raw_iron"
  },
  "result": "minecraft:iron_ingot"
}

or just add the block to the logs_that_burn_tag since the Minecraft recipe for charcoal uses that:

{
  "type": "minecraft:smelting",
  "category": "misc",
  "cookingtime": 200,
  "experience": 0.15,
  "ingredient": {
    "tag": "minecraft:logs_that_burn"
  },
  "result": "minecraft:charcoal"
}

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