Once you start working on a 2D game, the question of how to set up a proper render order will come up very early on. Render order, at least in the way I will be using the term, determines which parts of your 2D game get rendered (drawn, displayed, shown) in front of (i.e. later than) other parts.
U...
Movement on stairs has been the bane of my existence for a long time. I first added it to our old prototype in late 2017 and the code stayed more or less the same up until recently. It was barely good enough for our prototype, and it was never meant to stick around until release.
However...