<----SKIPPED LINES---->




    if current_angles and time.time() > next_write:
      if current_angles[1] >= configuration['minimum_altitude_servo_tracking']:
        if VERBOSE:
          Log('Flight #: %s current_angles: %s' % (
              messageboard.DisplayFlightNumber(flight), str(current_angles)))
        laser_rgb = LaserRGBFlight(flight)
        link.Write((*current_angles, *laser_rgb))
        last_angles = current_angles

      else:
        link.Write((*last_angles, *LASER_RGB_OFF))

      next_write = time.time() + WRITE_DELAY_TIME

  link.Close(SHUTDOWN_TEXT)


LASER_RGB_OFF = (0, 0, 0)
def LaserRGBFlight(flight):
  """Based on flight attributes, set the laser."""
  if not flight:
    return LASER_RGB_OFF
  return 1, 0, 0



















def DifferentFlights(f1, f2):
  """True if both squawk and flight number different; false otherwise."""
  if f1 is None and f2 is None:
    return True
  if f1 is None or f2 is None:
    return True

  if (
      f1.get('flight_number') != f2.get('flight_number')
      and f1.get('squawk') != f2.get('squawk')):
    return True
  return False


def FloatToAlphanumericStr(x, decimals, total_length, sign=True):
  """Formats a float as a string without a decimal point.

  Since the decimal point is controlled independently on the alphanumeric display,




                            <----SKIPPED LINES---->

                            <----SKIPPED LINES---->




    if current_angles and time.time() > next_write:
      if current_angles[1] >= configuration['minimum_altitude_servo_tracking']:
        if VERBOSE:
          Log('Flight #: %s current_angles: %s' % (
              messageboard.DisplayFlightNumber(flight), str(current_angles)))
        laser_rgb = LaserRGBFlight(flight)
        link.Write((*current_angles, *laser_rgb))
        last_angles = current_angles

      else:
        link.Write((*last_angles, *LASER_RGB_OFF))

      next_write = time.time() + WRITE_DELAY_TIME

  link.Close(SHUTDOWN_TEXT)


LASER_RGB_OFF = (0, 0, 0)
def LaserRGBFlight(flight):
  """Based on flight attributes, set the laser."""
  # Possible assignment based on:
  #   - ascending / descending / level
  #   - to SFO / from SFO / other
  #   - big plane / med plane / small plane
  #   - low alt / med alt / high alt
  #   - low speed / med speed / high speed
  #   - rare destination / common destination
  red = False
  green = False
  blue = False

  aircraft_length = AircraftLength(flight)
  if AircraftLength(flight) > 50:
    red = True
  elif AircraftLength(flight) > 30:
    green = True
  else:
    blue = True

  return red, green, blue


def DifferentFlights(f1, f2):
  """True if both squawk and flight number different; false otherwise."""
  if f1 is None and f2 is None:
    return True
  if f1 is None or f2 is None:
    return True

  if (
      f1.get('flight_number') != f2.get('flight_number')
      and f1.get('squawk') != f2.get('squawk')):
    return True
  return False


def FloatToAlphanumericStr(x, decimals, total_length, sign=True):
  """Formats a float as a string without a decimal point.

  Since the decimal point is controlled independently on the alphanumeric display,




                            <----SKIPPED LINES---->