public void draw() {
background(0);
fill(255);
if (!paused) timeline.moveForward();
if (dragging) drawOrbits(timeline.getFutureObjectStates());
else drawOrbits(timeline.getPastObjectStates());
ArrayList objects = timeline.getStatefulObjects();
for (int i = 0; i < objects.size(); i++) {
CelestialObject obj = (CelestialObject) objects.get(i);
obj.display();
}
}
public void btnFastForward_OnClick(int theValue) {
timeline.moveForward();
}