[BUG][PHYS] Miner turned by Blocker, goes through builder bridge, leaves no hole

[Flopsy]

RetroLemmini 3.2.1

Skip to 44:10 and watch the left side near the Blockers.

I was hoping the miner would have freed the blocker but it got turned but it then just bugs through the builder bridge leaving no hole. I freed the Blockers to test this and the rest of the Lemmings passed over where the miner drowned.

[WillLem]

Most likely related to this bug.

The Miner is moved down 2px at frame 0. I haven't been able to figure out why this is, but I imagine it's so that the sprite lines up correctly with the movement.

It probably does warrant further investigation if this is what we're seeing again and again (i.e. Miners clipping through terrain). In the case reported by Flopsy, the movement takes the Miner's foot position into the water trigger and they transition to Drowner.

The terrain clip, then, is actually built into Miner physics. I need to find out:

1) How far back into Lemmini development history this bug goes.

2) What's the exact reason for this 2px adjustment?

For now, the bug is fixed for cases where the presence of Steel or One-Way-Arrows should turn the Miner. The bug discovered by Flopsy is extremely rare, but should still be guarded against if possible.