[MC-111636] Player sometimes slows down when using firework flying boost while flying straight down

The bug

Using a firework to boost the player while flying straight down at high speed can slow down the player. Expected behaviour: Player speeding up.

Linked issues

duplicates 1

MC-138973 Firework rockets set player velocity to a set value instead of increasing player velocity Open

Attachments

Minecraft 1.11.1 20.12.2016 16_28_56.mp4

Comments 6

schuelermine 2016-12-20T17:18:17Z

EDIT: Added "Expected behaviour"

Griffin Roy Sego 2017-06-02T05:18:34Z

Happens with me too, and I'm on iMac.

SunCat 2017-06-02T21:39:09Z

@unknown, in which version of minecraft did it happen?
Please always add MC version in the future.

wobst.michael 2018-08-07T18:35:14Z

Is this still an issue in the most recent versions (currently that is 1.13, or the latest snapshot 18w31a) of Minecraft? If so, please update the affected versions and help us keeping this ticket updated from time to time. If you are the owner/reporter of this ticket, you can modify the affected version(s) yourself.

Sonicwave 2019-03-31T19:35:31Z

Can confirm in 1.13.2 and 19w13b; using fireworks while falling down at a high speed and with elytra activated will suddenly decrease the descent rate. This also occurs if the player is flying horizontally faster than the firework boosting speed (by leveling out after falling or using Riptide tridents).

[Mod] turbo 2023-10-28T11:14:35Z

This is actually a duplicate of MC-138973.