New force shield ability
Since the force shield ability in reveries has proven to be pretty well-liked I may as well submit it here.
The force stop now stores your current momentum while holding down spin and redirects it to where you're facing once spin is released. Z momentum is intentionally not restored to increase this ability's recovery utility.
This also adds player->shieldactive for storing shield ability related values.
5/14/2022 Test build here: srb2force.exe
Edited by pastel