Bookshelf minecraft

This article is about the mechanics of enchanting.

Basic mechanics[]

Whenever the player places an eligible item on the enchanting table, the enchantment levels available are randomly generated for each slot using the formula below.

Minecraft enchanting table bookshelf layout

The enchantment level is dependent upon the number of nearby bookshelves (capped at 15) and which slot position it is in.

Base enchantment level available (base) = (randomInt(1,8) + floor(b / 2) + randomInt(0,b)),

where b is the number of nearby bookshelves (maximum of 15) and x..y generates a uniformly distributed random integer between x and y, inclusive.

This is then modified according to the slot position:

Top slot enchantment level = floor(max(base / 3, 1))

Middle slot enchantment level = floor((base × 2) / 3 + 1)

Bottom slot enchantment level = floor(max(base, b × 2))

where max(x, y) returns the greater of two values x and y.