[MC-2112] Adjusted speed does not affect sprint-jumping/falling/floating with levitation/floating with NoGravity Created: 03/Nov/12  Updated: 07/Dec/24

Status: Reopened
Project: Minecraft: Java Edition
Component/s: None
Affects Version/s: Minecraft 1.4.2, Minecraft 1.4.3, Minecraft 1.4.7, Minecraft 1.5, Minecraft 1.7.5, Minecraft 1.8.8, Minecraft 15w39c, Minecraft 15w40a, Minecraft 15w40b, Minecraft 1.9.2, Minecraft 1.9.3 Pre-Release 1, Minecraft 1.10.2, Minecraft 16w32a, Minecraft 16w32b, Minecraft 16w33a, Minecraft 16w35a, Minecraft 17w06a, Minecraft 1.12.2, Minecraft 18w11a, Minecraft 18w15a, Minecraft 18w22c, Minecraft 1.13.1, Minecraft 1.13.2, Minecraft 18w50a, Minecraft 1.14 Pre-Release 5, 1.14.4, 1.15.2, 20w06a, 20w13b, 1.16 Pre-release 1, 1.16.1, 1.16.2 Pre-release 1, 1.16.2, 1.16.3, 1.16.4, 20w46a, 20w48a, 20w49a, 20w51a, 21w03a, 1.16.5, 21w05a, 21w05b, 21w06a, 21w07a, 21w11a, 21w15a, 21w17a, 1.17 Release Candidate 2, 1.17, 1.17.1, 21w39a, 1.18.1, 1.18.2, 1.19, 1.19.1, 1.19.2, 1.19.3, 23w05a, 1.19.4 Pre-release 2, 1.19.4, 23w14a, 1.20 Release Candidate 1, 1.20, 1.20.1, 23w31a, 23w32a, 23w33a, 1.20.2, 1.20.4, 1.20.5, 1.20.6, 1.21 Pre-Release 4, 24w33a, 1.21.1, 1.21.4
Fix Version/s: None

Type: Bug
Reporter: Dennison Richter Assignee: Unassigned
Resolution: Unresolved Votes: 68
Labels: None

Attachments: PNG File 2021-05-13_10.08.02.png     File MC-2112.mp4    
Issue Links:
Duplicate
is duplicated by MC-5438 Speed modifiers have no effect when t... Resolved
is duplicated by MC-10562 Effect Of Speed Doenst Jump Correcly Resolved
is duplicated by MC-12851 Beacon speed and jumping behavior Resolved
is duplicated by MC-29376 using slowness effects 127 dont work ... Resolved
is duplicated by MC-44108 Slowness effect has no effect when in... Resolved
is duplicated by MC-47314 When player speed is above 1, your ju... Resolved
is duplicated by MC-50174 Speed effects have no effect when the... Resolved
is duplicated by MC-68380 player can move with effect slowness ... Resolved
is duplicated by MC-71539 Cannot freeze players completely due ... Resolved
is duplicated by MC-84817 Movable while having slowness effect. Resolved
is duplicated by MC-101345 Speed doesn't work while leviating Resolved
is duplicated by MC-124165 No Gravity mobs move with moving attr... Resolved
is duplicated by MC-124651 Slowness and Speed do not affect aeri... Resolved
is duplicated by MC-213686 Jumping while sprinting with a speed ... Resolved
is duplicated by MC-220156 Slowness effect doesn't prevent sprin... Resolved
is duplicated by MC-227736 Slowness and speed effects don't work... Resolved
is duplicated by MC-253015 Effects not applying Resolved
is duplicated by MC-268323 `minecraft:generic.movement_speed` do... Resolved
is duplicated by MC-271258 Jumping negates movement_speed attribute Resolved
is duplicated by MC-271657 Speed potion doesn't increase flying ... Resolved
is duplicated by MC-2832 'Jump boost' effect negates forward m... Resolved
Relates
relates to MC-278279 Squid can move when attribute minecra... Open
relates to MCPE-61425 Flying in Creative is unaffected by t... Resolved
relates to MC-40949 Flying mobs do not obey generic.movem... Reopened
relates to MC-269477 Movement speed attribute does not aff... Resolved
CHK:
Confirmation Status: Confirmed
Category:
Player
Mojang Priority: Normal
Area: Platform

 Description   

When the player's speed is adjusted, the affects are not applied when sprint-jumping. Players under the affects of slowness potions, for instance, can still sprint-jump at nearly normal speeds. They are only slowed during the brief moments that they touch the ground.

Similarly, players in creative mode do not have their flying speed affected by speed potions. It seems Minecraft does not apply these affects to player motion when the player is airborne in general.

Steps to Reproduce

  • Give yourself the slowness effect:
    /effect give @s minecraft:slowness 100 5 true
  • Start running and take note of the speed at which you're traveling.
  • Start running and jumping and notice how you are now traveling much faster.

Observed Behavior

Adjusted movement speed isn't considered when mid-air.

Expected Behavior

Adjusted movement speed would be considered even when mid-air.



 Comments   
Comment by [Mod] Jiingy [ 08/May/24 ]

Related to MC-161071 MC-172801 MC-247426

Comment by Nicoder [ 06/Feb/24 ]

Can confirm in 1.20.4, also applies to the `minecraft:generic.movement_speed` attribute in addition to potion effects

Comment by Brain81505 [ 11/Feb/23 ]

Can confirm in 23w06a

Comment by Brain81505 [ 01/Feb/23 ]

Can confirm in 23w05a

Comment by Ugo Flickerman [ 06/Aug/22 ]

@HubbiGamingTV dude, if it'd be OP, then everything is OP. Like, with this bug one can just sprintjump away of the effect. Right now, slowness effect is completely useless because of this bug.

That's why it is a bug that should be fixed asap. I still dont understand why it hasn't yet been fixed. It's anchient, there is a mob that uses it, there is no incentive in using the slowness effect as a debuff and it even is supposed to be the """downside""""of a powerful potion effect

Comment by [Mod] Avoma [ 06/Aug/22 ]

Can confirm in 1.19.2.

Comment by [Mod] Avoma [ 28/Jul/22 ]

Can confirm in 1.19.1. HubbiGamingTV, the "Mojang Priority" assigned to this ticket states otherwise and that the current behavior is a valid bug.

Comment by HubbiGamingTV [ 22/Jul/22 ]

speed only effects ground movement to stop it from being overpowerd

Comment by [Mod] Avoma [ 08/Jun/22 ]

Can confirm in 1.19.

Comment by [Mod] Avoma [ 02/Mar/22 ]

Can confirm in 1.18.2.

Comment by [Mod] Avoma [ 16/Dec/21 ]

Can confirm in 1.18.1.

Comment by [Mod] Avoma [ 04/Oct/21 ]

I am able to confirm this behavior in 21w39a. Here are some extra details regarding this issue.

The Bug:

Adjusted movement speed isn't considered when mid-air.

Steps to Reproduce:

  • Give yourself the slowness effect.
  • /effect give @s minecraft:slowness 100 5 true
  • Start running and take note of the speed at which you're traveling.
  • Start running and jumping and notice how you are now traveling much faster.

Observed Behavior:

Adjusted movement speed isn't considered when mid-air.

Expected Behavior:

Adjusted movement speed would be considered even when mid-air.

Comment by [Mod] Avoma [ 18/Jul/21 ]

Can confirm in 1.17.1.

Comment by [Mod] Avoma [ 16/Jun/21 ]

Can confirm in 1.17.

Comment by [Mod] Avoma [ 30/Apr/21 ]

Can confirm in 21w17a.

Comment by [Mod] Avoma [ 19/Apr/21 ]

Can confirm in 21w15a. Here are some steps to reproduce this issue:

Steps to Reproduce:

  • Effect yourself with slowness.
/effect give @s minecraft:slowness 100 5 true
  • Start running and notice the speed at which you are traveling at.
  • Start running and jumping.
    →  Notice how you are now traveling much faster.
Comment by [Mod] Avoma [ 18/Mar/21 ]

Can confirm in 21w11a.

Comment by [Mod] Avoma [ 18/Feb/21 ]

Can confirm in 21w07a. Video attached.

Comment by [Mod] Avoma [ 12/Feb/21 ]

Can confirm in 21w06a.

Comment by [Mod] Avoma [ 04/Feb/21 ]

Can confirm in 21w05b.

Comment by [Mod] Avoma [ 03/Feb/21 ]

Can confirm in 21w05a.

Comment by [Mod] Avoma [ 21/Jan/21 ]

Can confirm in 21w03a.

Comment by [Mod] Avoma [ 24/Dec/20 ]

Can confirm in 20w51a. Requesting Ownership.

Comment by [Mod] Avoma [ 25/Nov/20 ]

Can confirm in 20w48a.

Comment by [Mod] Avoma [ 22/Nov/20 ]

I'd like to request the ownership of this report as the reporter has been inactive since March 2014.

Comment by [Helper] gaspoweredpick [ 12/Nov/20 ]

This also happens with the new freezing effect in 20w46a.

Comment by W_V [ 19/Sep/20 ]

In 1.16.3

Comment by W_V [ 24/Jun/20 ]

In 1.16.1

Comment by W_V [ 01/Apr/20 ]

Confirmed for 20w13b

Comment by Eugene Levin [ 17/Sep/19 ]

Since this was reopened, it affects 1.14, 1.14.1, 1.14.2, 1.14.3, and 1.14.4.

Comment by Jessica Mayo [ 18/May/19 ]

The previous workaround for this when using commands to administratively stop a player from moving was to give them a jump boost of greater than 128 (effectively a negative jump boost, due to signed/unsigned byte value conversions).
This workaround no longer works as of 1.14.2-pre2, making this issue a much bigger one again than it has been.
I'd be happy if there was at least a working workaround.

In 1.14.2-pre2 you don't even need to be sprinting. With a slowness effect of 127 and normal jumping you can progress at almost normal walking pace.

Comment by [Mod] Torabi [ 26/Apr/19 ]

zhekalevin, my comment was in response to the claims that this wasn't a bug. As for why it's been postponed, the reason is much the same as why it's been in the game for so long. The player movement code is ancient and ugly. Most of the bugs related to it would be difficult to fix, and there's a considerable risk that attempting to do so would introduce new bugs. It would be safer, cleaner, and easier to overhaul that section of code completely than to make changes to it, and thus most bugs related to it will probably be postponed until they can fit it into their development schedule.

Comment by Fabian Röling [ 26/Apr/19 ]

Please use the "visual" mode to check how your comment looks before you send it, you just caused 52 mails to be sent.

"Postponed" means that it won't be fixed soon, but nobody has claimed it wasn't a bug (since 2016 at least). Postponing can have various reasons, for example if something is hard to fix. I don't know enough about how player movement is handled in the code to tell you how hard or easy this would be to fix.

Comment by Eugene Levin [ 26/Apr/19 ]

Why is this being postponed? This is a huge bug. It allows players to walk at normal speed while jumping for the entire duration of slowness effect.

Torabi, common-sense physics dictates that forward moment should be preserved while jumping, but this bug allows momentum to be gained while in the air. Either you don't understand simple physics, or haven't looked at the bug. It's as much a bug as MC-40949

Mojang, how is this in the game for so long? Players shouldn't be able to negate slowness just by starting to jump.

Comment by libraryaddict [ 02/Oct/15 ]

When people jump while standing still, they shouldn't have the speed modifier.
When people jump while sprint jumping, it doesn't make sense to give them the same speed multiplier as if they were standing still.
Sprint jumping is specifically intended to do long jumps, and ignoring the speed potion is weird.

Comment by [Mod] Torabi [ 02/Oct/15 ]

Simple, common-sense physics dictates that forward momentum should be preserved when you jump. If you're moving quickly on the ground, you should not lose speed when you jump forward in excess of the loss due to air resistance.

Comment by Spake Miner [ 01/Oct/15 ]

I have a feeling this is intentional. As of Minecraft Wiki (http://minecraft.gamepedia.com/Status_effect#List_of_effects ):
Speed: Increases walking speed by 20%
It also makes sense. The potion is supposed to 'make your legs go faster', and in real life, you can't swing your legs while airborne to move forward.

Comment by [Mod] Ezekiel (ezfe) [ 01/Oct/15 ]

Reopened

Comment by libraryaddict [ 24/Oct/14 ]

How is this not a bug.

You can't surely tell me that its 100% intended for players to sprint jump normally when a splash potion of slowness is thrown on them?

Comment by fienxjox [ 23/Oct/14 ]

TrazLander - See the comment above from [Mod] Anon Ymus for why it is considered invalid.

Comment by TrazLander [ 22/Oct/14 ]

Agree. Why was this labeled invalid?

A player cannot move AT ALL when walking, so why should he be allowed to sprint? if walkspeed = 0 just cancel sprint.

Comment by Dennison Richter [ 05/Mar/14 ]

This is clearly a bug as far as I'm concerned. Instead of having this get insta-nixed by the OPINIONS of the moderators, how about you leave this open so that MOJANG can look at it.

Comment by Geoff R [ 15/Jul/13 ]

I think this is very clearly a bug. When you jump you expect forward motion to carry through. It's natural. Jumping in Minecraft at the moment is far from natural, and it has a very detrimental effect on gameplay (especially when potions and boosts are being used).

Comment by Anon Ymus [ 29/Jun/13 ]

This site is for bug reports only. Feature and improvement suggestions are not currently being tracked here.

Comment by Dennison Richter [ 29/Jun/13 ]

Will there at least be a response to this?

Comment by Megan [ 27/Mar/13 ]

I thought this was intended. If you look at Sethbling's Video on this it explains that the faster you are the slower your sprint jump goes (well it depends on which speed you set the potion to). Although he uses MCEdit to help make custom potions, I think this may explain some things. Hopefuly I don't look like an idiot and read the explanation wrong but I hope this helps <http://www.youtube.com/watch?v=SCsoexRngNs

Comment by Kumasasa [ 11/Dec/12 ]

Stop bumping.
Plonk

Comment by Dennison Richter [ 13/Nov/12 ]

Bumpity? I'm not sure why this was overlooked when the effects were introduced, but it'd be very nice to have it fixed. At least a response if no fix is planned.

Or perhaps allow me to join Mojang so I can help you guys fix it myself?

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