Slime block doesn't bounce on the edge and player/mob takes fall damage

Okay, just investigated a bit: The bounce effect only works if 50% or more of your player is directly on the block.
Might be intended.

Okay, thanks for the information!

If the 50% rule is true, it isn't entirely intuitive. It makes sense if there's another block directly beside the slime block, but not when there is an air block/open space, as just happened when I discovered this issue.

Took fall damage while falling on an "air" block, see screenshot.

I've looked into it, and it seems that Minecraft looks for the block you are closest to (I think in the coordinates in the location of the block), and uses it as base to see if you are on a slime block, and not if you are colliding with one. Same can be seen with falling particles. If you fall next to lava, just enough not to fall into it, you will see lava particles, not particles of the block you are on top of.

Still in 10c

Confirmed for 14w17a

Confirmed for 14w19a.

This is intentional.

Resource(s):
Sethbling
Minecraft chang log

Sethbling: NOT official resource!

"Intentional" or not, this needs to be addressed. This is a problem for mapmaking and defies the basic logic of the slime block bounce. This also happens if slime blocks are a mound and not a flat surface. You can fall 100% above slime blocks, but if there is one higher than the others and you are not perfectly centered then DEATH. This is severely impacting using slime blocks in mapmaking.

@unknown did assign himself to the ticket, and didn't mark it "Works As Intended", so it very likely isn't. The problem is that one part of the code (which block affects the player) only seems to consider a single point, but another part (bounding boxes) considers an area. While that may have been intentional before, the consequences of that behavior intersected with Slime blocks probably isn't. Fixing it probably won't be a trivial change, however. Would you like it if landing mostly on a block next to lava also counted you as landing on the lava?

This is actually a duplicate of MC-1133, they are both the same underlying problem.

Not a dupe on grounds that this doesn't talk about the footsteps being completely silent.

Yes it is. Both this and MC-1133 are symptoms of the same issue- entities only check for the block directly beneath them, not the one they are actually standing on.

MC-1133 is NOT the same issue. It specifically refers to being completely at the edge, before that point the issue does not occur. These irrelevant comments are diluting the issue.

And so does this one. Try actually reading the issue.

@unknown is right. When the center of the player / entity is over the corner of the block, the block below the center of the player is checked.

@unknown: You can stop updating this ticket, since it was resolved as duplicate of MC-1133 quite a long time ago.