Giant green thing coming to get you -- kinda unsettling. Neat motion trails, though. I wouldn't be able to figure out how Macy predicts where you're going to be and makes a random path that ends up there perfectly. It's like an endless chase scene.
It doesn't predict where you are going. it just goes towards you. Ok lemme tell you some insides. It takes a random trail out of several trails. It rotates it that it goes closer to you. It scales that it is closer to you. If it is far, it is more probable to choose a straight line trail. That's what there is to it. It doesn't predict your movements.