Alchemy Recipe (alchemy_recipe)

An alchemy recipe is a vanilla recipe type registered by the mod. It tells an alchemy workstation which materials it accepts, what temperature and furnace tier it needs, how long a batch runs and what it produces on success or on failure.

File Location

Alchemy recipes are ordinary recipe files, so they go in data/<namespace>/recipe/ within your data pack, exactly like a crafting or smelting recipe.

Purpose: Vanilla recipe type (mxt:alchemy), not a datapack registry.

The filename corresponds to its ID. For example, data/example/recipe/toxicity_pill.json has the ID example:toxicity_pill.

Every file declares the mod's recipe type:

{
  "type": "mxt:alchemy"
}

Fields

Field	Type	Default	Description
type	String	required	Must be mxt:alchemy.
inputs	Identifier[]	required	The item IDs the workstation must hold. At least one entry. Order does not matter: the list is compared with the input items as a multiset, so an item used twice has to be listed twice.
target_temperature	NumberProvider	required	The temperature the batch is supposed to run at.
temperature_tolerance	NumberProvider	0	How far the workstation temperature may deviate from target_temperature. A tick outside the tolerance spoils the batch.
minimum_furnace_tier	Integer	0	The minimum furnace tier of the workstation. A lower tier rejects the start.
duration	NumberProvider	required	The number of ticks the batch runs. It must be finite and greater than 0.
minimum_aura	Map<Holder<aura>, NumberProvider>	{}	The minimum amount of each aura at the workstation position. Every listed entry has to be satisfied; a zone that sets alchemy_env_bonus satisfies the whole requirement by itself.
success_outputs	Identifier[]	required	The item IDs produced when the batch finishes unspoiled. At least one entry; each ID yields one item.
failure_outputs	Identifier[]	[]	The item IDs produced when the batch is spoiled. Each ID yields one item.
success_action	EntityAction	mxt:no_op	The action run on the owner when the batch finishes unspoiled.
failure_action	EntityAction	mxt:no_op	The action run on the owner when the batch is spoiled.
success_block_action	BlockAction	mxt:no_op	The block action run at the workstation when the batch finishes unspoiled.
failure_block_action	BlockAction	mxt:no_op	The block action run at the workstation when the batch is spoiled.

Behaviour

A batch can start when the workstation holds exactly the declared inputs, its furnace tier is at least minimum_furnace_tier, and the aura at its position satisfies minimum_aura. It then runs for duration ticks while the workstation temperature is compared against target_temperature within temperature_tolerance; a single tick outside the tolerance spoils the rest of the batch. When the last tick passes, the recipe emits success_outputs or failure_outputs depending on whether it was spoiled, and then runs the matching entity action on the owner and the matching block action at the workstation.

The workstation environment is described by Aura Zone: the aura the recipe asks for is read from the position, and a zone whose rules set alchemy_env_bonus satisfies minimum_aura by itself, because the flag is a plain yes/no with no magnitude to scale an aura pool by. Without that flag the recipe's own minimums are compared against the zone's actual pools, exactly as before.

Unresolvable aura keys are dropped

minimum_aura is decoded as a map, and an entry whose key is not a resolvable aura ID is dropped with a warning in the log instead of failing the load. A typo therefore reads as "this aura is not required" rather than as an error.

Example

{
  "type": "mxt:alchemy",
  "inputs": ["minecraft:red_mushroom", "minecraft:honey_bottle"],
  "target_temperature": 600,
  "temperature_tolerance": 50,
  "minimum_furnace_tier": 1,
  "duration": 200,
  "minimum_aura": { "mxt:common": 200 },
  "success_outputs": ["minecraft:honey_bottle"],
  "failure_outputs": ["minecraft:glass_bottle"],
  "success_action": { "type": "mxt:add_resource", "resource": "mxt:common", "amount": 5 },
  "success_block_action": { "type": "mxt:change_aura", "aura": { "mxt:common": 20 } }
}

The items it produces are given their pill and toxicity rules by Pill Binding, and its materials can be declared as spirit herbs by Spirit Herb.