Block reference

Crafting CPU

The Crafting CPU is the execution block behind Crafting I/O. It stores the active 3x3 recipe pattern, exposes preview information, and crafts against adjacent input and output handlers.

Craft execution endpoint Recipe preview Partially implemented

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In game

Busy flag and naming.

Right click opens endpoint naming.
Shift-right-click toggles the busy flag and prints the current CPU state summary.
Name tags also rename the endpoint locally.

Python commands

Recipe and execution methods.

recipe_slot_count(), recipe_slot(slot), and recipe().
set_recipe_slot(slot, item_id, count) and clear_recipe().
preview(): structured preview with recipe id, result item, and result count.
craft(input_side, output_side, crafts): perform immediate crafting through the adjacent handlers on those sides.
craft_queued(input_side, output_side): execute queued work on the CPU itself.
is_busy() and set_busy(busy).
queued_jobs() and set_queued_jobs(count).
side_aliases(), state(), and rename(name).

cpu = get_device("crafting_cpu")

if cpu is not None:
    cpu.set_recipe_slot(0, "minecraft:oak_planks", 1)
    cpu.set_recipe_slot(1, "minecraft:oak_planks", 1)
    cpu.set_recipe_slot(3, "minecraft:oak_planks", 1)
    cpu.set_recipe_slot(4, "minecraft:oak_planks", 1)
    screen.show("Preview", cpu.preview())
    crafted = cpu.craft("west", "east", 1)
    screen.show("Craft", {"crafted": crafted})