Revert "gravity now also framerate-independent"
Revert "gravity now also framerate-independent"

This reverts commit 6c4ee2e10244078f3ca5b127796eae6d219b2fa2.

NolanNicholson/nolannicholson.github.io,NolanNicholson/nolannicholson.github.io,NolanNicholson/nolannicholson.github.io