The Flixel Power Tools are a package of classes designed to provide extra functionality to your Flixel games. Originally created by Richard Davey (Photon Storm), this is the Flixel Community fork of the library, striving to keep the library living and up to date with the latest version of Flixel.
The check about max velocity in either directions now takes the ABS
value of the current speed into account (before, negative speeds were
not capped)
When both x and y velocity are nonzero, we cap both of them to maxVel *
sqrt(3) / 2, which is mathematically correct and prevent characters
moving diagonal to exceed the max speed (so they don't go faster when
they move diagonally)