def receiveMsgFromStudent(self, msg):
#DEBUG if msg.type != TeachingMsg.TRAFFIC:
#DEBUG print('=== TEACHERS RECEIVES ===\n%s\n=== End ===' % msg.data)
if msg.type == TeachingMsg.ATC_TEXT_CHAT:
lines = msg.strData().split('\n')
if len(lines) == 2:
signals.incomingAtcTextMsg.emit(
ChatMessage(student_callsign,
lines[1],
recipient=lines[0],
private=True))
else:
print(
'ERROR: Invalid format in received ATC text chat from student.'
)
elif msg.type == TeachingMsg.STRIP_EXCHANGE:
line_sep = msg.strData().split('\n', maxsplit=1)
toATC = line_sep[0]
strip = Strip.fromEncodedDetails(
'' if len(line_sep) < 2 else line_sep[1])
strip.writeDetail(received_from_detail, student_callsign)
if toATC != teacher_callsign:
strip.writeDetail(sent_to_detail, toATC)
signals.receiveStrip.emit(strip)
elif msg.type == TeachingMsg.WEATHER: # requesting weather information
if msg.strData() == settings.primary_METAR_station:
self.sendWeather()
elif msg.type == TeachingMsg.TRAFFIC: # acknowledging a traffic message
if self.noACK_traffic_count > 0:
self.noACK_traffic_count -= 1
else:
print('ERROR: Student acknowledging unsent traffic?!')
elif msg.type == TeachingMsg.CPDLC:
# Msg format in 2 lines, first being ACFT callsign, second is either of the following:
# - connect/disconnect: "0" or "1"
# - data authority transfer: CPDLC_transfer_cmd_prefix + ATC callsign transferring to/from
# - other: CPDLC_message_cmd_prefix + encoded message string
try:
acft_callsign, line2 = msg.strData().split('\n', maxsplit=1)
if line2 == '0': # ACFT disconnected by student
if env.cpdlc.isConnected(acft_callsign):
env.cpdlc.endDataLink(acft_callsign)
else: # student is rejecting a connection (unable CPDLC)
QMessageBox.warning(
self.gui, 'CPDLC connection failed',
'Student is not accepting CPDLC connections.')
elif line2 == '1': # student confirming ACFT log-on
env.cpdlc.beginDataLink(acft_callsign, student_callsign)
elif line2.startswith(
CPDLC_transfer_cmd_prefix
): # student transferring or confirming transfer
atc = line2[len(CPDLC_transfer_cmd_prefix):]
if env.cpdlc.isConnected(
acft_callsign
): # student initiating transfer to next ATC
env.cpdlc.endDataLink(acft_callsign, transferTo=atc)
else: # student confirming proposed transfer
env.cpdlc.beginDataLink(acft_callsign,
student_callsign,
transferFrom=atc)
elif line2.startswith(CPDLC_message_cmd_prefix
): # student ATC sent a message
encoded_msg = line2[len(CPDLC_message_cmd_prefix):]
link = env.cpdlc.currentDataLink(acft_callsign)
if link == None:
print(
'Ignored CPDLC message sent to %s while not connected.'
% acft_callsign)
else:
link.appendMessage(
CpdlcMessage.fromText(False, encoded_msg))
else:
print('Error decoding CPDLC command from student:', line2)
except (IndexError, ValueError):
print('Error decoding CPDLC message value from student')
else:
print('ERROR: Unhandled message type from student: %s' % msg.type)
def receiveMsgFromTeacher(self, msg):
#DEBUG if msg.type != TeachingMsg.TRAFFIC:#
#DEBUG print('=== STUDENT RECEIVES ===\n%s\n=== End ===' % msg.data)
if msg.type == TeachingMsg.ACFT_KILLED:
callsign = msg.strData()
if env.cpdlc.isConnected(callsign):
env.cpdlc.endDataLink(callsign)
for acft in pop_all(self.traffic,
lambda a: a.identifier == callsign):
signals.aircraftKilled.emit(acft)
elif msg.type == TeachingMsg.TRAFFIC: # traffic update; contains FGMS packet
fgms_packet = msg.binData()
update_FgmsAircraft_list(self.traffic, fgms_packet)
send_packet_to_views(fgms_packet)
self.teacher.sendMessage(TeachingMsg(TeachingMsg.TRAFFIC))
elif msg.type == TeachingMsg.SIM_PAUSED:
self.teacher_paused_at = now()
signals.sessionPaused.emit()
elif msg.type == TeachingMsg.SIM_RESUMED:
pause_delay = now() - self.teacher_paused_at
for acft in self.traffic:
acft.moveHistoryTimesForward(pause_delay)
self.teacher_paused_at = None
signals.sessionResumed.emit()
elif msg.type == TeachingMsg.ATC_TEXT_CHAT:
lines = msg.strData().split('\n')
if len(lines) == 2:
signals.incomingAtcTextMsg.emit(
ChatMessage(lines[0],
lines[1],
recipient=student_callsign,
private=True))
else:
print(
'ERROR: Invalid format in received ATC text chat from teacher.'
)
elif msg.type == TeachingMsg.STRIP_EXCHANGE:
line_sep = msg.strData().split('\n', maxsplit=1)
fromATC = line_sep[0]
strip = Strip.fromEncodedDetails(
'' if len(line_sep) < 2 else line_sep[1])
strip.writeDetail(received_from_detail, fromATC)
signals.receiveStrip.emit(strip)
elif msg.type == TeachingMsg.SX_LIST:
to_remove = set(env.ATCs.knownATCs())
to_remove.discard(teacher_callsign)
for line in msg.strData().split('\n'):
if line != '': # last line is empty
lst = line.rsplit('\t', maxsplit=1)
try:
frq = CommFrequency(lst[1]) if len(lst) == 2 else None
except ValueError:
frq = None
env.ATCs.updateATC(lst[0], None, None, frq)
to_remove.discard(lst[0])
for atc in to_remove:
env.ATCs.removeATC(atc)
env.ATCs.refreshViews()
elif msg.type == TeachingMsg.WEATHER:
metar = msg.strData()
station = metar.split(' ', maxsplit=1)[0]
if station == settings.primary_METAR_station and metar != self.known_METAR:
self.known_METAR = metar
signals.newWeather.emit(station, Weather(metar))
elif msg.type == TeachingMsg.PTT: # msg format: "b acft" where b is '1' or '0' for PTT on/off; acft is caller's identifier
line_sep = msg.strData().split(' ', maxsplit=1)
try:
ptt = bool(int(line_sep[0]))
caller = next(acft for acft in self.getAircraft()
if acft.identifier == line_sep[1])
if ptt:
env.rdf.receiveSignal(caller.identifier,
lambda acft=caller: acft.coords())
else:
env.rdf.dieSignal(caller.identifier)
except StopIteration:
print('Ignored PTT message from teacher (unknown ACFT %s).' %
line_sep[1])
except (ValueError, IndexError):
print('Error decoding PTT message value from teacher')
elif msg.type == TeachingMsg.CPDLC:
try:
acft_callsign, line2 = msg.strData().split('\n', maxsplit=1)
if line2 == '0': # ACFT is disconnecting
env.cpdlc.endDataLink(acft_callsign)
elif line2 == '1': # ACFT is connecting (CAUTION: teacher needs confirmation of accepted connection)
if settings.controller_pilot_data_link:
env.cpdlc.beginDataLink(acft_callsign,
student_callsign)
self.teacher.sendMessage(
TeachingMsg(
TeachingMsg.CPDLC,
data=('%s\n%d' %
(acft_callsign,
settings.controller_pilot_data_link))))
elif line2.startswith(CPDLC_transfer_cmd_prefix
): # ACFT being transferred to me
if settings.controller_pilot_data_link: # CAUTION: teacher needs confirmation of accepted connection
xfr_auth = line2[len(CPDLC_transfer_cmd_prefix):]
env.cpdlc.beginDataLink(acft_callsign,
student_callsign,
transferFrom=xfr_auth)
self.teacher.sendMessage(TeachingMsg(TeachingMsg.CPDLC, \
data=('%s\n%s%s' % (acft_callsign, CPDLC_transfer_cmd_prefix, xfr_auth))))
else:
self.teacher.sendMessage(
TeachingMsg(TeachingMsg.CPDLC,
data=('%s\n0' % acft_callsign)))
elif line2.startswith(
CPDLC_message_cmd_prefix): # ACFT sending a message
encoded_msg = line2[len(CPDLC_message_cmd_prefix):]
link = env.cpdlc.currentDataLink(acft_callsign)
if link == None:
print(
'Ignored CPDLC message sent from %s while not connected.'
% acft_callsign)
else:
link.appendMessage(
CpdlcMessage.fromText(False, encoded_msg))
else:
print('Error decoding CPDLC command from teacher:', line2)
except (IndexError, ValueError):
print('Error decoding CPDLC message value from teacher')
else:
print('Unhandled message type from teacher: %s' % msg.type)