Hi. New to C2.
I want the user to be able to swipe the screen either in an up(ish) or down(ish) move, and a line will begin to draw where they touched and spread from that point in 2 directions (left to right if they swiped horizontally for example). The line should stop drawing itself once it hits an immovable solid (like a previously drawn line or a block on the screen).
Can't figure this out.