[MC-5037] Riding a pig / horse with a cape causes it to not behave as expected

The bug

Whenever a player wearing a cape rides a pig moving at a velocity higher than stationary, the cape will glitch out and spin wildly around to random locations on the player's body.

Code analysis

Code analysis / fix by @unknown can be found in this comment.

Linked issues

is duplicated by 2

MC-21034 Cape Flails While Riding Horse Resolved

MC-48959 Cape going sideways when on a horse Resolved

relates to 2

MC-111418 Cape angle resets while falling Open

MC-126084 Cape render when sprinting underwater Resolved

Attachments

Comments 9

connor byers 2013-03-15T13:16:37Z

confirmed

connor byers 2013-03-18T13:33:37Z

1.5 and 13w11a.

I have a Crowdin Translator cape and I can make a video of this.

Lukas B 2013-04-19T14:54:53Z

Also happens with horses in 13w16a Snapshot.

Samuel Shank 2014-08-07T22:09:34Z

confirmed for 14w32b

galaxy_2alex 2016-09-26T22:16:01Z

Behavior has slightly changed during the latest versions. On Singleplayer, riding with a pig seems to be working fine with a cape, with a horse, it makes the cape drift to the left. I am currently unable to test for Multiplayer, but this issue still exists to a certain extent.

CDES5 2016-12-10T16:28:39Z

Is this still a problem in Minecraft 1.11?

Justin White 2016-12-16T04:09:54Z

Confirmed cape drifting in 1.11.

bemoty 2017-08-06T16:36:19Z

Can confirm for 1.12 and 1.12.1.

violine1101 2017-12-30T14:03:47Z

Fixed for horses, not fixed for pigs (as of 17w50a)