[MC-161888] Enchantment tables do not track the player correctly at high distances from the world origin

When at high distances from the origin of the world (especially beyond 2^24 = 16777216) the enchantment table does not correctly track the player's position, and the book therefore behaves oddly.

A fix can be found in this mod: https://github.com/polgaria/FarLands

Linked issues

relates to

MC-45749 Potion particles spread always from the north-west corner of a block, regardless of impact

MC-76810 Casting issue: Bone meal particles break at high coordinates (floating point precision)

MC-125638 Ignited TNT block create entity offset at high coordinates

Attachments

Comments

Tim "timmyRS" Speckhals 2019-10-09T08:01:27Z

I think you could've put this whole suite of issues into just one issue, which is that particles use a 4-byte floating point number for their X, Y, & Z position, which is notorious for losing precision when you're going to extremely high numbers. If you went far enough into the world, you'd only see particles every 4, 8, 16, etc. blocks.