In osu!, we gain different point values for hitting notes at different times, where 300 is closest to the actual beat within a small window as set by the difficulty, followed by 100 for being a bit out, and 50 a little further out.
Now, I'm wondering how does this match to the visuals. Is this hit window, before, around or after the approach circle touches the beat? So:
X is the 300 window, is it:
Xbefore the circle touches up to when the circle does touch,
X/2before and after the circle touches, or
- From when the circle touches to
Xafter it does so.