changelist:
- Added mantling for ledges. Triggered by holding down jump button for at least .1s while falling (if you have a double/triple jump available, that will trigger instead of mantling). Weapons and other movement abilities are disabled during the short mantle animation.
- Added "platform nudging". If you're not trying to move and currently falling, the player controller will shoot out a 3x3 grid of raycasts beneath player and gently nudge the player towards surfaces it detects. Makes parkouring your way up towers, beams, and wires much easier but won't save you if you're falling really quickly.