Uncraft and Unfurnace

Minecraft is very good at letting you build things. It is not good at letting
you change your mind. This mod adds the two blocks that undo it.

== UNCRAFTING TABLE ==

Drop an item into the table and its ingredients appear in the grid, faded.
That is only a preview: nothing has been spent, the item is still whole, and
the ghosted parts cannot leave the table. The moment you reach in and take
one of them, the item comes apart for real and the rest are yours.

– No experience cost. Ever.
– Damage and enchantments don’t matter. A pickaxe worn down to its last hit
  still gives back every ingot and stick.
– Put a book, or a book and quill, in the slot on the left and the item’s
  enchantments move onto an enchanted book instead of being lost. Mending
  survives the trip.
– Netherite gear gives back all three things the smithing upgrade consumed:
  the upgrade template, the diamond item and the netherite ingot.
– Some things only come apart in batches — four planks make one log, nine
  nuggets make one ingot. The table tells you how many it still needs.

== UNFURNACE ==

A furnace running backwards. Feed it fuel like any other furnace and it
undoes smelting: cooked food back to raw, glass back to sand, ingots back to
raw metal, stone back to cobblestone, charcoal back to a log. Its mouth glows
cold instead of hot while it works.

== NOTHING IS DUPLICATED ==

Both blocks refuse the trades that would print items out of nothing. Ores are
never handed back, because ore can be re-mined with Fortune. Tools and armour
are never handed back either, because they smelt down into nuggets. Shulker
boxes and other containers keep their contents instead of being taken apart.

== IT KNOWS YOUR OTHER MODS ==

Nothing here is hard-coded. Both blocks read the recipes the game has
actually loaded and turn them inside out, so items added by other mods and by
datapacks come apart correctly with no patches and no config.

== ADVANCEMENTS ==

Seven of them, from opening your first table to taking a hundred items apart.

== RECIPES ==

Uncrafting Table
    Crafting Table   Crafting Table   Crafting Table
    Planks           Diamond          Planks
    Crafting Table   Crafting Table   Crafting Table

Unfurnace
    Stone Bricks     Stone Bricks     Stone Bricks
    Charcoal         Furnace          Coal
    Charcoal         Redstone         Coal