[MCPE-14199] Fence gates, daylight sensors, observers, and leaves cut redstone wire as if they were solid opaque Created: 19/Apr/16  Updated: 03/Jun/17  Resolved: 02/Dec/16

Status: Resolved
Project: Minecraft (Bedrock codebase)
Component/s: None
Affects Version/s: 0.14.1, 0.14.2, 0.14.3, 0.15.4, 0.15.6, 0.15.7, 0.15.90.2, 0.15.90.7, 0.15.10, 0.15.90.8, 0.16.0, 0.16.1, 0.17.0.1
Fix Version/s: 1.0.0.0

Type: Bug
Reporter: PHO
Resolution: Fixed Votes: 5
Labels: daylight_detector, fence_gate, leaves, observer, piston, redstone, redstone_dust

Attachments: PNG File Screenshot_2016-06-20-19-22-24.png     PNG File hoppers-cut-redstone-wire.png    
Issue Links:
Relates
relates to MCPE-15742 Redstone on top of hoppers can send a... Resolved
relates to MCPE-14174 Redstone does not align correctly whe... Resolved
relates to MCPE-14910 Piston Transparency !! Resolved
relates to MCPE-15851 Observers are not consistent regardin... Resolved
Confirmation Status: Confirmed
Platform: Tablet - iOS - iPad 3
CHK:
ADO: 43657

 Description   

Note: leaves are only affected by this when using fast graphics/fast leaves and after turning the wire on and off after changing the setting.

In the screenshot shown below, you can see a line of redstone dust being "functionally" cut by a hopper but "visually" not.

The reason why the lamp behind the hopper is lit would be that the redstone "line" next to it is treated internally as a directionless redstone dot.

Edit:
Hoppers now works as intended but there are other blocks which still exhibit similar behaviour, see picture and comments:

UPDATE: Fixed completely for piston heads as of 0.15.90.8 and for leaves as of 0.17.0.2.



 Comments   
Comment by [Mojang] Mega_Spud (Jay Wells) [ 02/Dec/16 ]

Fixed in 1.0.0.0

Comment by Zeb [ 07/Oct/16 ]

Fixed for piston heads in 0.15.90.8 (0.16.0 beta build 5). Update the title/description to reflect this.

Comment by Zeb [ 05/Oct/16 ]

Affects 0.15.10. (Tested on Windows 10.)

Comment by Zeb [ 16/Sep/16 ]

Affects 0.16.0 beta build 4 AKA 0.15.90.7.

Comment by Zeb [ 03/Sep/16 ]

Confirmed for 0.15.90.2. (Tested on Pocket Edition.)

Comment by Zeb [ 01/Sep/16 ]

Confirmed for 0.15.7. (Tested on Windows 10.)

Comment by Zeb [ 27/Aug/16 ]

Confirmed for 0.15.6. (Tested on Windows 10.) This may be related to MCPE-14910 or quite possibly even be the SAME issue.

Comment by Zeb [ 08/Aug/16 ]

Confirmed for 0.15.4. (Tested on Windows 10.)

This issue should be renamed to reflect the fact that hoppers are not affected by this bug, but the other blocks in the picture still are.

Comment by AMAN4700 [ 08/Aug/16 ]

Please respond and add the current version if you can reproduce this issue.

Comment by Zeb [ 20/Jun/16 ]

@Mega_Spud: Created a bug report. MCPE-15742.

EDIT:

Also, I can confirm that all the blocks shown in Screenshot_2016-06-20-19-22-24.png are affected by this bug in 0.15.0, though it is fixed for hoppers. (Tested on Windows 10.)

Comment by [Mojang] Mega_Spud (Jay Wells) [ 20/Jun/16 ]

zebulanstanphill@gmail.com File a new report for hoppers powering redstone downwards if you like. It'll get confirmed one way or the other eventually that way.

Comment by ItsPlantseed [ 20/Jun/16 ]

Please don't close this issue, I don't know if I need to create a new issue, because I just test it with fence gates, daylight sensor, extended piston head, leaves, and new observer block.

  1. The fence gates, leaves and daylight sensor just like the hoppers, but the daylight sensor only happen before it transferring a redstone source.
  2. But the extended piston head and the observer don't have the "redstone attached to wall" texture, the redstone dust at the top connected to them and don't receive a redstone power.

Surprisingly, the leaves can only produced when the fancy graphics is off, I don't know if the leaves will change the block state once you change the transparent-nontransparent texture, this mean you can create a trap that only working if the fancy graphics option is off.

Comment by Zeb [ 20/Jun/16 ]

Fixed in 0.15.0. (Tested in Windows 10.) Well, sort of. Hoppers no longer cut off redstone wire, and you can now have redstone wire travelling upwards easily using hoppers (like slabs/stairs) AND you can make it go downwards too, which is different from slabs, stairs, & Java edition hoppers, which just act like slabs/stairs. Probably unintentional.

https://youtu.be/rC0zbhGJsLw

Not sure if a new bug should be opened or if this one should stay open or if the new hopper mechanic is intentional.

Comment by PHO [ 11/May/16 ]

In fact I'm totally unsure what is the correct behavior in this case because hoppers are very special: No other partially-transparent blocks (like top-half slabs) respond to redstone input.

Case How the redstone dust below the hopper should be Whether the hopper should be affected by dust next to it
A Line. Treat hoppers just like top-half slabs. Not affected, because the redstone wire isn't really pointing at the hopper.
B Line Affected, because there is a wire pointing towards it even though the wire doesn't stop there.
C Dot Affected as usual

C is very unlikely to be correct (as hoppers aren't opaque) but A and B both make sense...

Comment by kaleb418 [ 11/May/16 ]

Ah - I see now what you're saying. Re-opening...

Comment by PHO [ 28/Apr/16 ]

Yes. Still affects 0.14.2.

Comment by [Mojang] MissMarzenia (Aleksandra Zajac) [ 27/Apr/16 ]

Thanks for the report. I have submitted it for testing.
Can you reproduce in 14.2?

Generated at Sat Jan 11 15:02:49 UTC 2025 using Jira 9.12.2#9120002-sha1:301bf498dd45d800842af0b84230f1bb58606c13.