@Override
public void update(GameContainer gc, int delta) throws SlickException {
rand.nextDouble();
if (System.currentTimeMillis() - lastUpdate > simulationDelay) {
lastUpdate = System.currentTimeMillis();
runSimulation();
}
Airplane airplaneHandle;
Iterator<Airplane> it;
it = airQueue.iterator();
while (it.hasNext()) {
airplaneHandle = it.next();
airplaneHandle.update(delta);
}
it = groundQueue.iterator();
while (it.hasNext()) {
airplaneHandle = it.next();
airplaneHandle.update(delta);
}
airplaneHandle = runway.getCurrentAirplane();
if (airplaneHandle != null) airplaneHandle.update(delta);
}
