Predicate Recipes

Predicate-Recipes are recipes which have special conditions not tied to the vanilla system explicitly
Currently Nexo comes with three main-types of Predicate-Recipes:

Amount-Predicate

This allows you to define the amount of a given Ingredient the recipe requires

Recipe showing a specific amount of an Ingredient is required to craft

amount_test:
  result:
    minecraft_type: DIAMOND
    amount: 3
  ingredients:
    A:
      minecraft_type: IRON_INGOT
      amount: 2
    B:
      minecraft_type: GOLD_INGOT
      amount: 2
    C:
      minecraft_type: COPPER_INGOT
      amount: 2

Replacement-Predicate

This allows you to define an item which should remain after the recipe is crafted
For example, a recipe which takes a Bucket Of Water, and leaves behind a Empty Bucket

This recipe cannot be made through the in-game builders, only directly in files

Recipe which leaves behind an empty Bucket after crafted

replacement_test:
  result:
    minecraft_type: POWDER_SNOW_BUCKET
  ingredients:
    A:
      minecraft_type: SNOWBALL
    B:
      minecraft_type: WATER_BUCKET
      replacement:
        minecraft_type: BUCKET

Durability Damage-Predicate

This allows you to define if an item should take durability damage, instead of immediatley being used up when crafting. For example a knife which takes damage when crafting meat

This recipe cannot be made through the in-game builders, only directly in files

Sword taking damage after "cutting up" Wood when crafting recipe

damage_test:
  result:
    nexo_item: bark
    amount: 8
  ingredients:
    A:
      tag: swords
      damage: 1
    B:
      tag: logs

Transmute Recipes

These are recipes which let you copy over data from one item onto another

forest_sword_to_axe:
  input:
    nexo_item: forest_sword
  material:
    minecraft_type: LAPIS_LAZULI
  result:
    nexo_item: forest_axe
  preserve:
  - damage
  - enchantments
  - custom_name