Summary:
When you hit a target block that is next to an observer by any projectile, the observer doesn't detect its update.
Steps to Reproduce:
Place a target block
Place an observer facing the target block
Place redstone behind the observer
Hit the target block with a projectile
Notice no pulse is emitted
Linked issues
is duplicated by 1
Attachments
Comments 13
I've noticed this issue as well. I hope it gets fixed, as it would allow many interesting redstone things to be built.
@DelightfulHam when a block updates that shouldn't necessarily mean that the block should look different. For instance, when you power a hopper to lock it, that count as an update and if there is an observer facing it, it will detect it emitting a redstone signal although the hopper looks the same.
Found that out today as well, on windows 10 version, as I was trying to detect a hit on target from under it (which exclude the use of a comparator)
An alternative I found for now : you can use a redstone lamp under the target, and point an observer at the lamp. You will get a signal from the observer when the lamp turn on (and another when it turn off) Or a (sticky) piston to redirect the signal where you want.
For info, the wiki page about target mentions:
"The target also provides a block update when hit, meaning that an observer can detect if the target has been hit and has produced a redstone signal."
.. Which I guess make this behavior true in Java at least
Thank you for your report!
However, this is a duplicate of MCPE-61978.
Observers are broken in Windows 10 PC Bedrock v1.16.100.56 Beta. It appears observers are always "ON", and the observer indicator is not "ON". This breaks most farms which use observers. Note: this may relate to MCPE-61978 and MCPE-100302
Technically, the block doesn't look different. Even so, there is already a bug report somewhere about certain updates not being detected. Correct me if I'm wrong but this would be a duplicate?