[MC-8281] Positive Y speed discarded upon exiting loaded region Created: 25/Jan/13  Updated: 13/May/17  Resolved: 14/Feb/17

Status: Resolved
Project: Minecraft: Java Edition
Component/s: None
Affects Version/s: Snapshot 13w04a, Minecraft 1.5.1, Minecraft 14w30c, Minecraft 1.8.1-pre3
Fix Version/s: None

Type: Bug
Reporter: Ultimate Omicron Assignee: Unassigned
Resolution: Incomplete Votes: 1
Labels: chunk, player, tnt, void

CHK:
Confirmation Status: Community Consensus

 Description   

After big explosions, the player can sometimes fly off with such a high speed that it will exit the loaded region before the server can load/generate new chunks. Since recent versions, a fix for dropping to the void after teleporting was added that discards the player's Y speed when not inside any chunk. However, this breaks some cannon designs.

A solution would be to only remove negative Y speeds when exiting the loaded region; This lets these vertical speed mechanics work as before without breaking the previous void fix.



 Comments   
Comment by user-f2760 (Inactive) [ 14/Feb/17 ]

Ticket resolved as incomplete, because no answer in a reasonable amount of time (1+ year), if it still happens, please update the ticket.

Comment by Kumasasa [ 06/Dec/15 ]

Is this still an issue in the current Minecraft Snapshot 15w49b or later? If so, please update the affected versions in order to best aid Mojang ensuring bugs are still valid in the latest releases/pre-releases.

Comment by Galaxy_2Alex [ 25/Oct/14 ]

Reopened, thanks.

Comment by Ultimate Omicron [ 25/Oct/14 ]

Confirmed on latest 1.8.1 pre3 using tnt player cannon.

It's very difficult to reproduce now that chunks load really fast but it's still there.

Comment by Galaxy_2Alex [ 25/Oct/14 ]

Is this still a concern in the current Minecraft version 1.8.1 Prerelease 3 / Launcher version 1.5.3 or later? If so, please update the affected versions in order to best aid Mojang ensuring bugs are still valid in the latest releases/pre-releases.

Comment by Ultimate Omicron [ 27/Jul/14 ]

I bet this is too difficult if not impossible to reproduce in latest due to extreme optimizations. Besides, cannons that explode so violently aren't even a concern as they somewhat break the expected game behavior and instantly kill anything with health in a 20 block radius from it.

I will, though, try and recover my cannon map and attempt to recreate this issue. I'll have to rebuild it because a piston timing issue in a recent snapshot destroyed the cannon. Hang on.

e> using a /fill cannon I managed to reproduce the problem with view distance set to 2 and 150 tnt charges.

Comment by Ultimate Omicron [ 28/Mar/13 ]

Forgot to say; Reconfirmed in latest.

Comment by Tails [ 17/Mar/13 ]

Is this still a concern in the current Minecraft version? If so, please update the affected versions in order to best aid Mojang ensuring bugs are still valid in the latest releases/pre-releases.

Comment by Ultimate Omicron [ 26/Jan/13 ]

The map file attached to MC-6584 can display this effect. After i precised the true cause of the problem in that issue, i made a new issue to better illustrate the error and a possible fix.

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