public void draw() {
background(0);
// Draw an ellipse at the mouse location
int mx = mouseX;
int my = mouseY;
fill(100);
noStroke();
ellipse(mx, my, 30, 30);
// call some behaviors on our agent
// b.wander();
// b.seek(new Vector3D(mx,my));
b.arrive(new Vector3D(mx, my));
b.run();
}
