[MC-6486] Variable redstone strength causing strange update behavior Created: 07/Jan/13  Updated: 06/Sep/15  Resolved: 22/Jan/13

Status: Resolved
Project: Minecraft: Java Edition
Component/s: None
Affects Version/s: Snapshot 13w01a, Snapshot 13w01b, Snapshot 13w02b
Fix Version/s: Snapshot 13w04a

Type: Bug
Reporter: asdf Assignee: [Mojang] Jeb (Jens Bergensten)
Resolution: Fixed Votes: 13
Labels: redstone
Environment:

Windows 7 home premium, Service Pack 1
Java Recommended Version 7, Update 10


Attachments: PNG File 2013-01-06_23.29.28.png     PNG File 2013-01-06_23.29.38.png     PNG File 2013-01-06_23.33.58.png     PNG File 2013-01-06_23.35.56.png     PNG File 2013-01-06_23.36.05.png     PNG File 2013-01-12_15.48.04.png     PNG File 2013-01-12_15.48.10.png     PNG File 2013-01-12_15.48.15.png    
Issue Links:
Duplicate
is duplicated by MC-6717 Piston arm bug Resolved
Relates
relates to MC-127 Piston extended and retracted at the ... Resolved
Confirmation Status: Unconfirmed
Game Mode: Creative

 Description   

The new variable redstone strength is having some strange effects on certain blocks. When an object such as a weighted pressure plate or daylight sensor is placed, hooked up to a line connected to a row of pistons, and slowly increased in power, The redstone seems to cut out for a split second, causing the next piston to get stuck in a position where it is both extended and retracted at the same time. Which pistons get stuck is 100% reproducible every time the machine is reset, but changes when the machine is moved or rotated.

Please note that this is not a duplicate of MC-127, as far as I can tell, as the pistons getting stuck seems to be a by-product of a bug with the redstone, not the actual bug I am reporting.



 Comments   
Comment by asdf [ 27/Feb/13 ]

Please give a screenshot or video of it happening, showing with F3 what snapshot you're in.

Comment by Tails [ 27/Feb/13 ]

No it's not.

Comment by yut951121 [ 27/Feb/13 ]

This is happening again in 13w07a & 13w09a

Comment by asdf [ 22/Jan/13 ]

Yeah! Go Jeb! Assuming it is in fact fixed and not just no longer reproducing in his end...

Comment by Keith [ 13/Jan/13 ]

Note: still present in 13w02b.

Comment by GCSX [ 12/Jan/13 ]

Added 3 screenshot of a mechanism proving this behavior.

The two pistons receive inverted and synchronized power, making their arms to stagger.

The first is the system once built, the second is then system swithed on and the last is the system switched off again.

Notice the bug on the right piston.

Comment by GCSX [ 12/Jan/13 ]

Hi! I reproduced this bug and I found that it is not directly related to signal strength.
The problem is caused by some pistons retracting and expanding again, while an adjacent piston is extending, resulting in a situation similar to the one I have described for MC-6717 (two piston arms staggered).

Comment by kyle kelley [ 12/Jan/13 ]

i hate this bug

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