[2.8pre-291-g4770b9b]Bug: Slope physics behaving abnormally

[Leonard2]

Using the usual 181:Plane_Align method is fine however when using the sector tilt things (9502) the physics changes somehow..
It seems that walking on slopes using sector tilt things remove that "gravity effect" of slopes.

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Here's a minimal exemple WAD:

slopephys.wad

(3.58 KiB) Downloaded 29 times

Notes:

• Both slopes uses a 45° angle.
• The blue slope uses sector tilt thing.
• The red slope uses plane align line.
• I only tested this in UDMF format so I don't know if the behavior is the same in hexen format.

[Graf Zahl]

It looks like you hit the threshold between climbable and non-climbable slopes here. Above a certain degree you cannot stand on slopes anymore but slide down.

[Enjay]

But the point here is that the two slopes are apparently identical, except that one is created with the line special and the other with a slope thing, yet the behaviour of the player on the two slopes is different.

[Graf Zahl]

Meaning they are NOT identical! It looks like the slope is right at the threshold for being climbable, one slightly above, one slightly below.