Mouse sensitivity adjustment sliders range too narrow

[rabfulton]

Just remembered this game existed and glad to see it still exists!

I had trouble getting my mouse sensitivity to anywhere near a reasonable value using the in game options. I guess this could be related to hidpi modern mice and/or modern screen sizes/dpi's. Although easily fixed by finding the manual and editing neverballrc, it would be nice if the in game slider covered a wider range or allowed to input a value.

Aquick search in the code revealed in ball/st_conf.c:

#define MOUSE_RANGE_MIN 100
#define MOUSE_RANGE_INC 50
#define MOUSE_RANGE_MAX (MOUSE_RANGE_MIN + (MOUSE_RANGE_INC * 10))

If I am correct this suggest a max value of 100 + 50*10 = 600.

For me a value of about 1000 felt right (playing on linux with logitech mx anywhere 3 mouse at 1920x1200). I suspect a more correct way to get a value for range min/max would be to query the screen dpi and resolution and use that to come up with numbers that relate to the users particular hardware setup (just a thought and I may be entirely wrong about this!).