private Joystick joystick;
private Vector buttonListeners;
private Vector joystickListeners;
public GRTXboxController(int channel, int pollTime, String id) {
joystick = new Joystick(channel);
setSleepTime(pollTime);
setState("leftXValue", 0.0);
setState("leftYValue", 0.0);
// setState("zValue", 0.0);
for (int i = 0; i <= NUM_OF_BUTTONS; i++) {