Controls and Parametrization
Animals are generated, they go towards the mouse pointer. They also prefer moving in flocks, but will leave their herds if they get really hungry.
The First slider controls the herd size and the second slider controls targetting.
v4 Leaving herd for food if really hungry
v3 Hunger, eating mechanics, food Sources (Apple Trees - random apple drops)
v2 Flocking (herd like behaviour)
v1 Simple Chasing (the mouse pointer)