[MC-16143] Sprinting and Speed effect not working

When sprinting in creative, sprinting is as slow as walking.

Linked issues

is duplicated by 35

MC-16160 Walking is / seems to be faster dan sprinting Resolved

MC-16163 Speed potions/beacon doesn't work Resolved

MC-16177 Sprint does not work correctly Resolved

MC-16184 Sprinting speed same as regular wakling Resolved

MC-16192 Sprinting Is the Same Speed/Slower Than Walking. Resolved

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Comments 17

Tails 2013-05-23T16:02:17Z

Confirmed. Sprinting is broken.

wobst.michael 2013-05-23T16:04:53Z

Can confirm it as well. Sprinting is definately broken.

Tomas Watchorn 2013-05-23T16:11:24Z

The same problem occurs with speed potions

Donald Arno 2013-05-23T16:37:57Z

yep same here, no running away from mobs fast

SullyTheUnusual 2013-05-23T16:50:31Z

Confirmed.

7 more comments

Tails 2013-05-23T17:03:31Z

Sprint-jumping on the other hand works.

Carl Lystad 2013-05-23T20:06:17Z

Created a simple test rig to show the problem; A line of repeaters set to maximum delay triggered by a tripwire at the start, with another bank of repeaters set to latch the first line when the finishing tripwire is triggered. Dirt block shows where the light stopped when sprinting or walking, birch block shows where the line stopped when sprint-jumping the whole length. Will test again after loading 13w19a for comparison.

Carl Lystad 2013-05-23T20:24:39Z

Comparison picture after testing in 13w19a. Far block is walking (same position as the dirt block from other picture), near block is sprint-jumping (Close to same position as birch block in other picture), middle block is regular sprinting.

Further testing with Speed II effect active showed same results as walking and normal sprinting in 13w21a.

Aaron Loyd 2013-05-23T21:27:32Z

I can confirm this in survival/adventure mode as well.

Daniel "Glampkoo" 2013-05-23T22:23:19Z

Confirmed. very annoying specially in my parkour map ruins it all.

WolfieMario 2013-05-23T23:12:52Z

This also applies to the Slowness effect.

Robert Krause 2013-05-23T23:34:34Z

I can confirm that you speed up while in mid-air if you jump while running.

Mike Kolbe 2013-05-24T00:07:33Z

Besides sprinting, swiftness potions do not seem to work either

Jonathen Stacy 2013-05-24T04:22:38Z

Speed is not working for beacons in survival unless jumping while sprinting.

Kaden Warner 2013-05-24T12:48:13Z

Confirmed

Tomas Watchorn 2013-05-25T07:00:17Z

I can confirm that slowness effects do not slow you down and instead keep you at walking speed

Ed Kelly 2013-05-27T20:31:25Z

I think that this has to do with the new "Attribute System" that the snapshot post on mojang.com mentions.

My server spit out this message when I tried to sprint the first time on 21a:

2013-05-26 16:55:45 [WARNING] Ignoring unknown attribute 'Speed'

And... I just realized that this issue is resolved already. :/