Adds semi-realistic crafting with unlockable recipes to Minetest, and removes the craft grid.

By rubenwardy
License: LGPLv2.1+

rubenwardy (CC BY-SA 3.0): crafting_slot_*.png

Neuromancer (CC BY-SA 3.0): crafting_furnace_*.png

BlockMen (CC BY-SA 3.0): gui_*.png

paramat (CC BY-SA 3.0) creative_trash_icon.png (derived from a texture by kilbith, same license)

Any recipes must be designed such that any particular item can only be used as one of the ingredients.

For example, you can't have the following recipe as default:wood could be used twice: default:wood, group:wood.

• crafting.register_type(name)

  • Register a type type used when searching for recipes

• crafting.register_recipe(def)

  • Returns id.
  • def a table with the following fields:
    • type - one of the registered types.
    • output - the result of the craft, eg: default:stone 3.
    • items - A list of ingredients, eg: {"stone", "wood 3"}.
    • level - level of station required.
    • always_known - If true, this recipe will never need to be unlocked.

• crafting.get_recipe(id)

  • Get recipe by ID

• crafting.get_unlocked(name)

  • name is the player's name
  • Returns a dictionary of recipe output to boolean.

• crafting.unlock(name, v)

  • name is the player's name
  • v is a single output or list of outputs

• crafting.get_all_for_player(player, type, level)

  • Returns a list of results, each a table
    • items - a key-value table, key being item name and value being a table:
      • have - how many the player has
      • need - how many of this item needed
    • recipe - the recipe
    • craftable - is craftable?
  • craftable is a table of the items the player can craft with the items they have.
  • uncraftable is a table of items the player knows about, but is missing items for.

• crafting.get_all(type, level, item_hash, unlocked)

  • Returns same as above.
  • item_hash - a table with keys being item names or group names (eg: group:wood) and the value being the number required.
  • unlocked - a list of outputs the player has unlocked.

• crafting.set_item_hashes_from_list(inv, listname, item_hash)

  • Iterates through the list and adds or updates entries in item_hash representing the number of items for each names and group.

• crafting.find_required_items(inv, listname, recipe)

  • Returns a list of stacks to take, or nil if the required items could not be found.

• crafting.has_required_items(inv, listname, recipe)

  • Returns true if the "main" list in inv contains the required items.

• crafting.perform_craft(name, inv, listname, outlistname, recipe)

  • Will try to take itemsfrom listname and put output in the outlistname list in inv.
  • Returns true on success.

• crafting.make_result_selector(player, type, level, size, context)

  • Generates a paginated form which a search box.
  • type - craft type.
  • size - how many slots to show on a page.
  • context - server-side storage between show and submit, can be {}.
    • crafting_page - page to show

• crafting.result_select_on_receive_results(player, type, level, context, fields)

  • Handles form submissions for the result selector.
  • Returns true if the formspec should be shown again.

• crafting.make_on_rightclick(type, level, inv_size)

  • Returns a function to be used as on_rightclick for node work stations.

• crafting.create_async_station(name, type, level, def_inactive, def_active)

  • Makes a station which players put items into and then leave to craft.
  • Registers two nodes - inactive and active versions of the station.

Installation:

# Dependencies for linter and test framework
sudo apt install luarocks
sudo luarocks install luacheck
sudo luarocks install busted

# Set up git hook to disallow commiting when linter or tests fail
./utils/setup.sh