How to handle Drag in Unity?

Question

Android

Hello.
I would like to know how to handle drag(swipe) across the screen. Or rather, not just a drag in some direction (left / right, bottom / top), but, for example, that the player, by swiping his finger across the screen, formed a square or triangle. If there are any text or video lessons on this topic, then I would very much like to see it.
P.s. I'm concerned about handling specific shapes, not necessarily straight lines. Thank you in advance.

Answer 1

www.theappguruz.com/blog/draw-line-mouse-move-dete...