How do I fade text in upon collision

I have managed to fade the text in upon collision.

But I want the text to fade away the further I am away from it.

So, the closer I get, the more visible, the further away, the less visible.

Text set opacity to (100-distance(text.x, text.y, character.x, character.y)/10)

At 1000px distance the text will be fully transparent, at 0px fully opaque.

Thanks - Figured out how to add it.

Thanks so much!