[MC-4118] Half-Slabs allow Redstone Connections

Relates to 1.5 "Redstone Update"

http://www.youtube.com/watch?v=nfBVAexor3s (From 0:40 onward. If the video does not work, an attachment has been added to counter such removal.)

The attachment's "Sandstone" slabs are powered from a redstone torch underneath the stone block. Redstone torches cannot power half slabs.

What I expected to happen was...:
Half-slabs not carring signals via upward staggered placement (Shown in picture.)

What actually happened was...:
Instead, the redstone current is sent up the staggered placement of half-slabs.

Steps to Reproduce:
1. Look at attached image or see linked video above starting from 0:40

Linked issues

is duplicated by

MC-9007 Redstone Signals can only travel flat and diagonally upwards between slabs, not down.

MC-152968 redstone signal not running down the sides of non-solid blocks

MC-187836 Redstone goes above slabs

MC-238597 Redstone and slabs are weird

MC-278492 Redstone ladders not working down

relates to

MC-3311 Transparent blocks disallow downwards redstone connectivity

MC-7335 Redstone and stairs

Attachments

Comments

CubeTheThird 2012-12-04T12:09:24Z

This issue ticket is not very clear. Please follow this as a guidline.

Ian Carlson 2012-12-04T12:12:52Z

Added a few things to make it "Clearer" even though it's exactly the same as it was before.

CubeTheThird 2012-12-04T12:15:34Z

This is not a bug, but a feature request, and should be posted on the MC forums here.

Ian Carlson 2012-12-04T12:17:08Z

This is definitely a bug, when it breaks redstone logic.

CubeTheThird 2012-12-04T12:26:00Z

This behaviour follows directly with redstone logic (see minecraft wiki here. Because the block is opaque, redstone current will travel up (but not down) half-slabs.

Ian Carlson 2012-12-04T12:26:06Z

Thread for it: http://www.minecraftforum.net/topic/1589446-mc-4118-half-slabs-allow-redstone-connections/

Ian Carlson 2012-12-04T15:25:30Z

So it's not a suggestion either. How do you suppose I go about this then?

Ian Carlson 2012-12-04T15:34:04Z

Made a modification request instead I guess:

http://www.minecraftforum.net/topic/1589558-request-redstone-realism/

Daniel 2012-12-30T11:57:55Z

Work As Intended.

Anon Ymus 2012-12-30T16:28:48Z

Clarification on why this works as intended: Redstone current can pass through the block because it is transparent (this also works with glass). So each piece of redstone is actually connected to two different pieces on the same side. It doesn't work downwards because slabs do not conduct redstone.

FaRo1 2020-04-30T01:05:23Z

@unknown That doesn't explain why it connects logically (not visually, at least not fully) at all. It should either not connect and not transmit power or connect and transmit power in both directions.

Anon Ymus 2020-05-01T02:19:26Z

Hmm, yeah that doesn't make much sense. Now that you can place redstone on glass, the issue is even more apparent there. The wire shows as connected (even up the side of the glass) but redstone current can only be sent up. Feel free to review.

FaRo1 2020-05-01T05:42:26Z

Review? What do you mean? You're the mod, only you can mark for review.

Anon Ymus 2020-05-02T02:59:50Z

I'm not the one who resolved it and it was resolved many years ago, so I'm not going to reopen it. Mojang can certainly review this bug if they want.

FaRo1 2020-05-02T04:34:16Z

I've heard a few times of a mod-only field that marks a report for review for Mojang. I have never seen how this worked, but probably another moderator knows that.