In 1.13.0.9, most effects are fixed. Please read comment below.
In summary
Block effects at the Lower South-East (X+, Z+, and Y-) override blocks closest to entities.
In depth
When the lower north-west portion of an entity's hitbox interacts with blocks while that portion is hanging off of the block's north or west edge, the next interaction point is chosen in this order: less than 3 blocks down (Y-), less than 3 blocks south (Z+), then less than 3 blocks east (X+); negating the actual closest block if it so happens to be anywhere north, west, or less than .375 blocks under the lowest point of the entity's hitbox (bottom trapdoor, carpet, scaffolding, repeater, comparator, composter, lily pad etc.) (Not a stonecutter, any slab, enchanting table, lectern, fence, wall, hopper, end portal frame, brewing stand, bell, campfire, cauldron, or daylight detector).
If there isn't a block to interact with, different portions of the lower hitbox are used until any block, including physics-less blocks (buttons, pressure plates, tall grass, vines, signs, water, lava, torches, fence gates, etc.) is found (If not, air could be used, making the stone sound, but I'm not sure.) This is easily reproduced with shulkers, boats, or a trapdoor placed at the bottom of a block space (but is possible with any placeholder block), combined with a slime block or farmland. Anything that counts as a block can be used, but slime blocks and farmland are easier since the slime block bounce effect and the farmland trampling effect occurs when the player "interacts" with it by jumping.
In gameplay
Another way to reproduce this is to make an area made of one block (planks) surrounded by another block (grass blocks). Run along the inside edge of the area about .3 blocks inwards, then run along the outside of it at the same distance. This should produce different/ unintentional sounds and particles of those two blocks.
In this video, I use trapdoors to allow entities (myself) to mimic sneaking off of a block to help with testing for this bug (a completely different issue, but still useful).
Linked issues
is duplicated by 1
Attachments
Comments 11
migrated
In 1.13.0.9, all effects are fixed except "...less than .375 blocks under the lowest point of the entity's hitbox".
I've noticed that, at 2:38 to 2:43 in the youtube video you linked me to , that the sound and effect of the block seemed to be dependent on which one you were looking at. I don't know if this has any effect on the results, but try the procedure again, taking this into account.
At 4:36 the particles indicate some kind of discrepancy in the location of the player. Like with your boat collision report, I suggest getting a friend to observe the effects of these experiments. I can't say much more, except that this looks like the developers somehow figured out how to get computers to use voodoo.
I've noticed that, at 2:38 to 2:43 in the youtube video you linked me to , that the sound and effect of the block seemed to be dependent on which one you were looking at. I don't know if this has any effect on the results, but try the procedure again, taking this into account.
At 4:36 the particles indicate some kind of discrepancy in the location of the player. Like with your boat collision report, I suggest getting a friend to observe the effects of these experiments. I can't say much more, except that this looks like the developers somehow figured out how to get computers to use voodoo.
Since 1.13.0.9, that video is mostly irrelevant now. The only issue that remains revolves around blocks that are less than .375 blocks tall such as trapdoors, carpets, scaffolding, repeaters, comparators, the inside of composters, and lily pads.
If I interpret this correctly this means MCPE-64684 is a duplicate/relative of this bug?
If I interpret this correctly this means MCPE-64684 is a duplicate/relative of this bug?
If I interpret this correctly this means MCPE-64684 is a duplicate/relative of this bug?
I don't think that updating this ticket is a good idea anymore. The difference between MCPE-46706 and MCPE-64684, at this point, describes the same issue.
For example, the player can interact with a slime block if there is a short space (a trapdoor, carpet, repeater, comparator, the inside of composter, or lily pad) placed on top of the block, which also plays the sound that the slime block makes. Basically, since 1.13.0.9, all that remains is MCPE-64684, and since that ticket is already confirmed with an ADO, marking it as a duplicate of MCPE-46706 would be too cumbersome. The situation would be better if MCPE-46706 were marked invalid, fixed, or cannot reproduce instead.
As for the scaffolding issue, MCPE-53279 might have to be reopened.