Backport from 2.2... from memory, because I left my code access. :V
WIP because I need to figure out a good way to tackle the joy axis config update shenanigans...
Hub @ https://github.com/TehRealSalt/SRB2/tree/jump-spin-axes
Digiku said they'd handle the new button defaults so \m/
Needs the config default-changing shenanigans done still, not sure how to tackle that yet. Now the game is TOTALLY playable from a fresh install if you just plug in a controller.