Rhythm Lunatic

5.2 is a dead branch.

STATSMAN:GetFinalEvalStateStats is blank, it returns StageStats.

Inside the ActorFrame docs. ``` SetUpdateFunction( LuaReference UpdateFunction ) Sets the ActorFrame's update function to the specified Lua function. ``` This does not say what an update function is... A...

`scale_or_crop_background` has no explanation but it's fairly self explanatory, a short description could be added that says something like "Scales the sprite to either be cropped or cover the screen...

``` Grade STATSMAN:GetBestGrade() Returns the best grade. ``` Should say something like "Compares the grades of the current stage for all enabled players and returns the best one".

I've encountered this crash too. InputEventPlus passes the raw name of the button mapped or not, so my guess is MakeUpper() can't handle the name of the button.

Tested and confirmed working. Video proof https://youtu.be/OYs63xCk5d4

Adding "usb" to CMakeLists.txt in the SMDATA_LINK_LIB causes a linker error on Windows.

Not sure "usb" is required in the cmake in the first place, since I took it out and it still works. But my fork already had libusb0 implemented so there...

libusb isn't merged as far as I know. But this PR introduces it. It might be better to redo the PR using the [starworlds](https://github.com/chrispable/stepmania/tree/starworlds) fork for libusb since it doesn't...