osu! touch input support does not handle touch initiated before gameplay

[frenzibyte]

This is a complicated one, opening issue thread for tracking but I'm not sure it can make it to the initial app store release. As such, I'm marking it in the backlog.

Discussed in #31658

^{Originally posted by Hissymaster January 24, 2025}
You might be confused on the glance of the title suggests, so hear me out.

Put it simply, Touching and holding on the loading screen does not make the gameplay use the finger you touch and held with your "tracking" finger.

As follows is what currently happens:

Screen_Recording_20250124_235319.mp4

you will notice, despite me clearly having a finger over the circles, and me tapping the side tk the rythm, it all results in misses.

to put a long story short, the touch and hold that was started on the load screen does nothing, so you have to let go, then touch and hold again to have the gameplay begin to actually track using that finger.

This is a bit inconvinient, and could leave players confused.

I am unsure about the logic behind the touch controls of osu, but put it simply, the touch and hold should continue into the gameplay.

[ranacore]

Surprised someone just noticed it, experienced this tons of times but figured that someone's probably reported it already.