User talk:MentalMouse42/Book Mechanics

Starting to analyze book costs.
Use of books clearly doesn't fit neatly into our tables for anvil use. I'm trying to analyze the new rules.

General Notes
(accumulated as I discover things)


 * 1) Using books is cheaper than combining items.  This is as it should be, since we already paid for books at the enchanting table.
 * 2) Naturally, we're not paying repair costs, either.
 * 3) Interestingly, we don't seem to be paying base-value costs for the target item.
 * 4) Combining two books costs the same as combining a book with an item.

Iron picks
Starting with iron picks and the tool enchantments. All the ingot and sacrifice-repair stuff I've tried matches the current table, so I'm focusing on books, combining various levels of enchanted pick with various books:

Efficiency: 0+N: 2, 3, 5, 6, 8 1+N: 2, 2, 4, 5, 7 2+N: X, 3, 3, 4, 6 3+N: X, X, 3, 3, 5 4+N: X, X, X, 4, 4 5+N--> X, X, X, X, 4 N+ Silk Touch: 8, 8, 9, 9, 10 Silk Touch+N: 5, 6, 8, 9, 11

Unbreaking: 0+N:2, 3, 5 1+N: 2, 2, 4 2+N: X, 3, 3 3+N: X, X, 3 N+Silk Touch: 8, 8, 9 Silk Touch +N:  5, 6, 8

Fortune: 0+N: 3, 6, 9 1+N: 4, 4, 7 2+N: X, 5, 5 3+N: X, X, 5 N+Silk Touch: 2, 3, 4 Silk Touch+N: 3, 4, 5

Silk Touch: 0+Silk Touch: 6 Silk Touch+Silk Touch: 6

--Mental Mouse 03:16, 5 January 2013 (UTC)

Books on Books
Combining two books. Fortune and Silk touch result in the same book as the target slot, the others combine in the same way as correspondingly-enchanted items. Yep, multiple-enchant books can be produced.

Efficiency: 1+N: 2, 2, 4, 5, 7 2+N: X, 3, 3, 4, 6 3+N: X, X, 3, 3, 5 4+N: X, X, X, 4, 4 5+N: X, X, X, X, 4 N+Silk Touch: 8, 8, 9, 9, 10 Silk Touch+N: 5, 6, 8, 9, 11

Unbreaking: 1+N: 2, 2, 4 2+N: X, 3, 3 3+N: X, X, 3 N+Silk Touch: 8, 8, 9 Silk Touch+N: 5, 6, 8

Fortune: 1+N: 4, 4, 7 2+N: X, 5, 5 3+N: X, X, 5 N+Silk Touch: 2, 3, 4 Silk Touch+N: 3, 4, 5

Silk Touch+Silk Touch: 6

Unbreaking+Fortune: 1+N: 5, 8, 11 2+N: 5, 8, 11 3+N: 6, 9, 12

Fortune+Unbreaking: 1+N: 4, 5, 7 2+N: 5, 6, 8 3+N: 6, 7, 9

Efficiency+Unbreaking: 1+N: 3, 5, 6 2+N: 4, 5, 7 3+N: 4, 6, 7 4+N: 5, 6, 8 5+N: 5, 7, 8

Efficiency+Fortune: 1+N: 5, 8, 11 2+N: 5, 8, 11 3+N: 6, 9, 12 4+N: 6, 9, 12 5+N: 7, 10, 13

Unbreaking+Efficiency: 1+N: 3, 5, 6, 8, 9 2+N: 4, 5, 7, 8, 10 3+N: 4, 6, 7, 9, 10

Fortune+Efficiency: 1+N: 4, 5, 7, 8, 10 2+N: 5, 6, 8, 9, 11 3+N: 6, 7, 9, 10, 12

Table: tool enchantments
The rows indicate the target item (book/tool), the columns indicate the book that's sacrificed.

Some Notes and guesses:
 * Not paying base cost or repair costs.
 * There's probably a cost for adding an enchantment.
 * Likely there are fractions applied to the enchantment costs, which get rounded at some point.