#42 player can no longer jump

[Ozkan Sezer]

Reported by Rugxulo: "[...] When fighting Death, I used a summoned
monster (or two??) and won, but oddly it seemed to somewhat fall
through the floor. I'm not sure that's related, but here's the BIG
BUG: Now I can't jump. Literally, besides the vocalization, it does
absolutely nothing (though at very start of level 3 it barely slides
me but literally nothing else). It was seemingly fine until then.
Re-loading doesn't help. Re-starting doesn't help. [...] This is with
stock 1.5.5 (Win64 PE32+, glh2.exe) using (uHexen2) patched Hexen2
(no Portals) *.pak installs."

Attached crusader_lvl2_Death.zip is just before entering Death's lair,
attached crusader_lvl3_nojump.zip is after defeating him and changed
hub to Egypt where the player is unable to jump.

To be looked into.

[Ozkan Sezer]

save from "before" (can jump)

[Ozkan Sezer]

save from "after" (can not jump)

[Ozkan Sezer]

The save in egypt1 shows that the player entity has the velocity:
"velocity" "-1.524707 -1.524707 -0.431773"
.. which may be normal, but more importantly his is negative:
"scale" "-1.568001"

He can't "jump", because jumping will adjust his z velocity like:
self.velocity_z = self.velocity_z + 270*self.scale;
(see client.hc::PlayerJump)

Now to find out how the hell did that happen...