- In SE17's first loop, the player's position is unconditionally backed up. This means jumping in the elevator, even while its not in motion is uninterpolated for the player.
- Removing these interpolation calls fixes that, however there is a hitch now when the elevator is going back down.
- If the sign of
qis positive, we back up the player's Z coordinate to fix the aforementioned hitch.
- Also remove
actor[j].bpos.z = sprite[j].z;call that's covered