Android Gestures/Swipe Captures

Is there any “free” Scripts to capture a sliding finger o my android screen?

The point is if player slides on screen from left to the right so character must move to right and vice-versa…

I am looking for any scripts or plugins…
Case no free scripts are available, what is the best payed choice?

Att,
Marcello

If you just want u/d/l/r swipes, try https://dl.dropboxusercontent.com/u/97948256/SwipeDetctor.cs