* Fixed bug where being pushed off a platform whilst charging a spindash would leave you in your charging frames instead of your rolling ones when you hit the ground (http://gfycat.com/MassiveThreadbareItalianbrownbear for how it works now, http://gfycat.com/MarvelousEnlightenedAuk is how it used to work)
* Fixed bug where spindashing on top of a bubble spawnpoint led to you being able to move around in spindash frames (no gif since obvious desired behaviour is obvious)
* Spindash animation speeds up the faster you'll shoot off.
* The spin charging mechanism is now scale-independent, and only multiplies by scale when shooting off - less FixedMul calls, and potentially deals with weird quirks of changing scale whilst spindashing that nobody's discovered because there's no place to find that in the main game!
Also:
* Climbing animation defaults to rolling instead of walking, because what.
Skewing direction is decided per in-level wall by the Lower Unpegged flag on in-level linedefs themselves, since they already decide the stuff for FOF wall pegging as it is. That is unless Transfer Line is involved which moves everything to the control sector linedefs instead...
Cutscene switch fix
Yet another fix for SUGOI, lol: apparently going from a final level's post-cutscene straight to a custom credits cutscene gets the latter stuck forever in the first scene (because the game accidentally stops the cutscene responder from realising the custom credits cutscene is running). This branch of course makes a fix for that.
See merge request !108
Wall collision fixes
Fixes included in this branch:
* A fix for a specific crash encountered in a SUGOI map (sound familiar?) caused by bouncing off a wall adjacent to a slope
* A fix for solid midtextures not accounting for Effect 3/Peg Midtexture properly (https://mb.srb2.org/showthread.php?t=41462)
* A fix for solid midtextures not accounting for texture y offsets properly for non-Lower Unpegged/Peg Midtextured midtextures
* A fix for solid midtextures not accounting for "infinite" repeats (Repeat Midtexture + no repeat count set)
* ~~A fix for Effect 4 on Polyobject First Line making that particular linedef's midtexture solid in addition to making planes visible - this is not wanted if you want a polyobject with both visible planes and full intangibility.~~ Apparently they never did this anyway, don't mind me \o/
See merge request !104
Fix non-player objects having busted step-up/down on slopes
Why the fuck did I make this a player conditional in the first place holy shit
See merge request !103
RA menu can be opened if the game is modified, but Start can't be selected. (Obvious reason: so scripts to display info can be used easier)
Fixed the stupid background for messages in the Record Attack menu, it was bugging me
Also, I added more sortscale handling in the places where I forgot it.
I probably need some help with the maths here to get this to work nicely. http://gfycat.com/LimpAgedDowitcher
http://i.imgur.com/UyOKX5u.png <-- this common glitch with crawlas given MF_PAPER (THEY'RE NOT GOOD AT TURNING NEAR EDGES) used to show the behind-crawlas in front of the front-crawlas.
Unfortunately, I've just discovered this issue (which happens with the old version of the sorting code too): http://i.imgur.com/QNjbATB.png but to be fair these crawlas have gotten stuck inside the edges of this platform, so I'm not sure I can do anything about this without cutting off Sonic's feet when he stands on the ground? shrug
* MF_AMBUSH is now MF2_AMBUSH, because it's something you turn on in a map editor, not with a SOC definition.
* Where MF_AMBUSH was is now MF_PAPER.
* MF_PAPER accesses all the stuff I did previously in this branch...
* ...as well as turn on paper-thin collision detection between mobjs, which I've gotten working but isn't perfect but it's still good enough for non-solid objects!!
* recognising that the offsets weren't going to be accurate if you just SWAPPED yscale and yscale2 over 180 degrees
* taking scale into account consistently
also, some optimisations
