How do I manipulate touch input?

Is there a way to transpose touch input?

If the left side is 0%, right side is 100%-

I would like to touch the middle and have it respond as if I touched it at 25%.

Touch the right side and I get 50%.

Touch the left side and I get 0%.

I need to transpose my Touch input X by 1/2.

Is this possible?

Easiest would be to make a tiny invisible sprite, get the input coordinate/2 and set that as the sprites x,y. Then do a collision check to see what it overlaps.

For 1 axis you only halve the X or Y.

That would take 2 events (on touch) and (on overlap),and I cant think of a way to hack the touch input directly.

Interesting idea... similar to how I thought I might have to do it but I wasn't so sure about the collision thing.

Thanks I will be looking into this!