Movement & Environment Test

Controller recommended!

Had to fiddle with a bunch of shader params for compatibility rendering. Tried to get it to look mostly the same as forwards rendering.

This is a repurposing of my 3D class final and I wanted to see what others think of this new-ish player code.

There's a few issues with the way I'm rotating the player model while on slopes. Namely, a "flicker" when transitioning to the skid animation, and mistaking "stairlike" edges as slopes.

Oh, I should probably mention that the main things I'm testing are the triple jump and "skid jump" / sideflip. Stuff you'd find in a mario game.