So I'm making a game where it spawns random obstacles towards you and you have to pretty much dodge it. I'm trying to make it so that when your character gets too close to a certain obstacle (birds), then that obstacle will move towards you. Currently, it makes all the birds move towards you, but I only wanted that one. Any ideas? Here's a look at the game so far (with stand in sprites).
http://dl.dropbox.com/u/4055367/repulsion.cap