Question about how this is done

[toxicrecker]

How did you figure out all the mapping and the keyboard and mouse state bytearrays? im asking this as im trying to do something similar with an xbox360 controller

[Alkaid-Benetnash]

Hi, keycode are tracked in keycode.txt, where you can find the description of the data source at the very beginning.
In short, the mapping is taken from the USB HID usage reference (e.g., here is a link).
There are dedicated section for gaming control in these kind of documentations.
Good luck!