This will allow us to simplify the checks for background input and push
them further down into the architecture, into the ControllerEmu layer.
The new setting isn't actually used yet, though.
Do the scaling in the code that interprets the results.
This also removes the templatization of things and changes the interface
to always take a double.
This does add a bit more code to the users of GetState, especially when
having to deal with focus management, but this will be cleaned up very
soon, as focus and focus-related options will be centralized inside the
input platforms themselves, rather than spread out across all the input
plugins.
Most users will have something in the radius or deadzone fields, so
don't bother filtering out 'extra' work. This also lets us clean up
the modifier implementation.
It was only used for really old joypads which we really don't want to
support. If users have these joypads, they should look into using
something at the OS level, as games shouldn't need to have this
transformation; it should be done by the OS and driver.
It substantially complicates the code and doesn't really provide any
functionality. According to the forums, the Android app is out of date
and has been broken for quite a while.
If we want to add this back, I'd write an app that speaks a more native
Wiimote protocol, and we can hook that up to the backend quite easily.
It could even be over our NetPlay protocol!