Two finger dragging/rotation of a sprite?

Im making a 2D game where the player jumps and you move the "earth" beneath him.

Character does not jump until two fingers are on the screen and while he is in the air, you move the two fingers and in theory, the points beneath the fingers form a line segment which becomes a bar which you move to rotate/drag the world beneath his feet and repeat, moving the sprite towards a goal. Im currently unable to do this because I don't know how to use touch input controls

Im relatively new to Unity and I am unable to find a tutorial that answers this specific problem. Any links to videos, code snippets, or suggestions would be appreciated. Thank you!

Raskolnikov

P.S. C# would be appreciated too.