This looks immensely useful for a project of mine and I'm glad I don't have to code it myself. Thank you so much!

That seems to be the solution, but it presents a new problem: since the game can never just set the speed to 0 and forget about it, the player starts jittering about constantly as their position is reset every time gravity kicks in, thus making the problem worse.

So, I've been working on a game of my own in the Löve engine, and the platforming is getting along pretty well. You can see it in the prototype below. Thanks to MasterShizzle's platforming tutorial , YellowAfterlife's platformer game engine , and the amazing Mr Rescue for their help in my figuring o...