1 /******************************************************************************
3 * Written by Durk Talsma, started May 5, 2004.
5 * This program is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU General Public License as
7 * published by the Free Software Foundation; either version 2 of the
8 * License, or (at your option) any later version.
10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
20 ****************************************************************************
22 *****************************************************************************/
40 #include <simgear/compiler.h>
41 #include <simgear/sg_inlines.h>
42 #include <simgear/math/sg_geodesy.hxx>
43 #include <simgear/props/props.hxx>
44 #include <simgear/structure/subsystem_mgr.hxx>
45 #include <simgear/xml/easyxml.hxx>
47 #include <AIModel/AIFlightPlan.hxx>
48 #include <AIModel/AIManager.hxx>
49 #include <AIModel/AIAircraft.hxx>
50 #include <Airports/simple.hxx>
51 #include <Main/fg_init.hxx> // That's pretty ugly, but I need fgFindAirportID
54 #include "SchedFlight.hxx"
55 #include "TrafficMgr.hxx"
57 /******************************************************************************
58 * the FGAISchedule class contains data members and code to maintain a
59 * schedule of Flights for an artificially controlled aircraft.
60 *****************************************************************************/
61 FGAISchedule::FGAISchedule()
76 FGAISchedule::FGAISchedule(string mdl,
87 FGScheduledFlightVec flt)*/
88 FGAISchedule::FGAISchedule(string model,
105 flightIdentifier = flightId;
114 /*for (FGScheduledFlightVecIterator i = flt.begin();
117 flights.push_back(new FGScheduledFlight((*(*i))));*/
128 FGAISchedule::FGAISchedule(const FGAISchedule &other)
130 modelPath = other.modelPath;
131 homePort = other.homePort;
132 livery = other.livery;
133 registration = other.registration;
135 flightIdentifier = other.flightIdentifier;
136 flights = other.flights;
137 AIManagerRef = other.AIManagerRef;
138 acType = other.acType;
139 airline = other.airline;
140 m_class = other.m_class;
141 firstRun = other.firstRun;
142 radius = other.radius;
143 groundOffset = other.groundOffset;
144 flightType = other.flightType;
146 distanceToUser = other.distanceToUser;
147 currentDestination = other.currentDestination;
148 firstRun = other.firstRun;
149 runCount = other.runCount;
151 lastRun = other.lastRun;
152 initialized = other.initialized;
158 FGAISchedule::~FGAISchedule()
160 // remove related object from AI manager
163 FGAIManager* aimgr = (FGAIManager *) globals-> get_subsystem("ai-model");
165 aimgr->destroyObject(AIManagerRef);
169 /* for (FGScheduledFlightVecIterator flt = flights.begin(); flt != flights.end(); flt++)
176 bool FGAISchedule::init()
179 //SGTime* currTimeDate = globals->get_time_params();
181 //tm *temp = currTimeDate->getGmt();
183 //sgTimeFormatTime(&targetTimeDate, buffer);
184 //cout << "Scheduled Time " << buffer << endl;
185 //cout << "Time :" << time(NULL) << " SGTime : " << sgTimeGetGMT(temp) << endl;
186 /*for (FGScheduledFlightVecIterator i = flights.begin();
190 //i->adjustTime(now);
191 if (!((*i)->initializeAirports()))
194 //sort(flights.begin(), flights.end());
195 // Since time isn't initialized yet when this function is called,
196 // Find the closest possible airport.
197 // This should give a reasonable initialization order.
198 //setClosestDistanceToUser();
202 bool FGAISchedule::update(time_t now, const SGVec3d& userCart)
207 //remainingTimeEnroute,
212 scheduleFlights(now);
213 if (flights.empty()) { // No flights available for this aircraft
218 // Sort all the scheduled flights according to scheduled departure time.
219 // Because this is done at every update, we only need to check the status
220 // of the first listed flight.
221 //sort(flights.begin(), flights.end(), compareScheduledFlights);
224 if (fgGetBool("/sim/traffic-manager/instantaneous-action") == true) {
225 deptime = now; // + rand() % 300; // Wait up to 5 minutes until traffic starts moving to prevent too many aircraft
226 // from cluttering the gate areas.
231 FGScheduledFlight* flight = flights.front();
233 deptime = flight->getDepartureTime();
234 //cerr << "Settiing departure time " << deptime << endl;
238 // Check if this aircraft has been released.
239 FGTrafficManager *tmgr = (FGTrafficManager *) globals->get_subsystem("traffic-manager");
240 if (tmgr->isReleased(AIManagerRef)) {
243 return true; // in visual range, let the AIManager handle it
247 // This flight entry is entirely in the past, do we need to
248 // push it forward in time to the next scheduled departure.
249 if (flight->getArrivalTime() < now) {
250 SG_LOG (SG_GENERAL, SG_BULK, "Traffic Manager: Flight is in the Past");
251 // Don't just update: check whether we need to load a new leg. etc.
252 // This update occurs for distant aircraft, so we can update the current leg
253 // and detach it from the current list of aircraft.
255 flights.erase(flights.begin()); // pop_front(), effectively
259 FGAirport* dep = flight->getDepartureAirport();
260 FGAirport* arr = flight->getArrivalAirport();
265 double speed = 450.0;
267 totalTimeEnroute = flight->getArrivalTime() - flight->getDepartureTime();
268 if (flight->getDepartureTime() < now) {
269 elapsedTimeEnroute = now - flight->getDepartureTime();
270 //remainingTimeEnroute = totalTimeEnroute - elapsedTimeEnroute;
271 double x = elapsedTimeEnroute / (double) totalTimeEnroute;
273 // current pos is based on great-circle course between departure/arrival,
274 // with percentage of distance travelled, based upon percentage of time
276 double course, az2, distanceM;
277 SGGeodesy::inverse(dep->geod(), arr->geod(), course, az2, distanceM);
278 double coveredDistance = distanceM * x;
280 SGGeodesy::direct(dep->geod(), course, coveredDistance, position, az2);
282 SG_LOG (SG_GENERAL, SG_BULK, "Traffic Manager: Flight is in progress, %=" << x);
283 speed = ((distanceM - coveredDistance) * SG_METER_TO_NM) / 3600.0;
286 //remainingTimeEnroute = totalTimeEnroute;
287 elapsedTimeEnroute = 0;
288 position = dep->geod();
289 SG_LOG (SG_GENERAL, SG_BULK, "Traffic Manager: Flight is pending, departure in "
290 << flight->getDepartureTime() - now << " seconds ");
293 // departure / arrival coincident
294 //remainingTimeEnroute = totalTimeEnroute = 0.0;
295 elapsedTimeEnroute = 0;
296 position = dep->geod();
299 // cartesian calculations are more numerically stable over the (potentially)
300 // large distances involved here: see bug #80
301 distanceToUser = dist(userCart, SGVec3d::fromGeod(position)) * SG_METER_TO_NM;
303 // If distance between user and simulated aircaft is less
304 // then 500nm, create this flight. At jet speeds 500 nm is roughly
305 // one hour flight time, so that would be a good approximate point
306 // to start a more detailed simulation of this aircraft.
307 SG_LOG (SG_GENERAL, SG_BULK, "Traffic manager: " << registration << " is scheduled for a flight from "
308 << dep->getId() << " to " << arr->getId() << ". Current distance to user: "
310 if (distanceToUser >= TRAFFICTOAIDISTTOSTART) {
311 return true; // out of visual range, for the moment.
313 return createAIAircraft(flight, speed, deptime);
316 bool FGAISchedule::validModelPath(const std::string& modelPath)
318 SGPath mp(globals->get_fg_root());
321 mp.append(modelPath);
323 mp_ai.append(modelPath);
325 return mp.exists() || mp_ai.exists();
328 bool FGAISchedule::createAIAircraft(FGScheduledFlight* flight, double speedKnots, time_t deptime)
330 FGAirport* dep = flight->getDepartureAirport();
331 FGAirport* arr = flight->getArrivalAirport();
332 string flightPlanName = dep->getId() + "-" + arr->getId() + ".xml";
333 SG_LOG(SG_GENERAL, SG_INFO, "Traffic manager: Creating AIModel from:" << flightPlanName);
335 // Only allow traffic to be created when the model path (or the AI version of mp) exists
336 SGPath mp(globals->get_fg_root());
339 mp.append(modelPath);
341 mp_ai.append(modelPath);
343 if (!mp.exists() && !mp_ai.exists()) {
344 SG_LOG(SG_GENERAL, SG_WARN, "TrafficManager: Could not load model " << mp_ai.str());
348 FGAIAircraft *aircraft = new FGAIAircraft(this);
349 aircraft->setPerformance(m_class); //"jet_transport";
350 aircraft->setCompany(airline); //i->getAirline();
351 aircraft->setAcType(acType); //i->getAcType();
352 aircraft->setPath(modelPath.c_str());
353 //aircraft->setFlightPlan(flightPlanName);
354 aircraft->setLatitude(position.getLatitudeDeg());
355 aircraft->setLongitude(position.getLongitudeDeg());
356 aircraft->setAltitude(flight->getCruiseAlt()*100); // convert from FL to feet
357 aircraft->setSpeed(0);
358 aircraft->setBank(0);
360 courseToDest = SGGeodesy::courseDeg(position, arr->geod());
361 FGAIFlightPlan *fp = new FGAIFlightPlan(aircraft, flightPlanName, courseToDest, deptime,
362 dep, arr, true, radius,
363 flight->getCruiseAlt()*100,
364 position.getLatitudeDeg(),
365 position.getLongitudeDeg(),
366 speedKnots, flightType, acType,
368 if (fp->isValidPlan()) {
369 aircraft->SetFlightPlan(fp);
370 FGAIManager* aimgr = (FGAIManager *) globals-> get_subsystem("ai-model");
371 aimgr->attach(aircraft);
372 AIManagerRef = aircraft->getID();
377 //hand back the flights that had already been scheduled
378 while (!flights.empty()) {
379 flights.front()->release();
380 flights.erase(flights.begin());
386 // Create an initial heading for user controlled aircraft.
387 void FGAISchedule::setHeading()
389 courseToDest = SGGeodesy::courseDeg((*flights.begin())->getDepartureAirport()->geod(), (*flights.begin())->getArrivalAirport()->geod());
392 void FGAISchedule::scheduleFlights(time_t now)
394 if (!flights.empty()) {
397 //string startingPort;
398 string userPort = fgGetString("/sim/presets/airport-id");
399 SG_LOG(SG_GENERAL, SG_BULK, "Scheduling Flights for : " << modelPath << " " << registration << " " << homePort);
400 FGScheduledFlight *flight = NULL;
402 if (currentDestination.empty()) {
403 flight = findAvailableFlight(userPort, flightIdentifier, now, (now+6400));
405 flight = findAvailableFlight(currentDestination, flightIdentifier);
407 flight = findAvailableFlight(currentDestination, flightIdentifier);
412 currentDestination = flight->getArrivalAirport()->getId();
413 //cerr << "Current destination " << currentDestination << endl;
415 string departurePort = flight->getDepartureAirport()->getId();
416 if (userPort == departurePort) {
427 dep = flight->getDepartureTime();
428 arr = flight->getArrivalTime();
429 string depT = asctime(gmtime(&dep));
430 string arrT = asctime(gmtime(&arr));
432 depT = depT.substr(0,24);
433 arrT = arrT.substr(0,24);
434 SG_LOG(SG_GENERAL, SG_BULK, " Flight " << flight->getCallSign() << ":"
435 << " " << flight->getDepartureAirport()->getId() << ":"
436 << " " << depT << ":"
437 << " \"" << flight->getArrivalAirport()->getId() << "\"" << ":"
438 << " " << arrT << ":");
440 flights.push_back(flight);
441 } while (currentDestination != homePort);
442 SG_LOG(SG_GENERAL, SG_BULK, " Done ");
445 bool FGAISchedule::next()
447 if (!flights.empty()) {
448 flights.front()->release();
449 flights.erase(flights.begin());
452 FGScheduledFlight *flight = findAvailableFlight(currentDestination, flightIdentifier);
457 currentDestination = flight->getArrivalAirport()->getId();
460 dep = flight->getDepartureTime();
461 arr = flight->getArrivalTime();
462 string depT = asctime(gmtime(&dep));
463 string arrT = asctime(gmtime(&arr));
465 depT = depT.substr(0,24);
466 arrT = arrT.substr(0,24);
467 //cerr << " " << flight->getCallSign() << ":"
468 // << " " << flight->getDepartureAirport()->getId() << ":"
469 // << " " << depT << ":"
470 // << " \"" << flight->getArrivalAirport()->getId() << "\"" << ":"
471 // << " " << arrT << ":" << endl;
473 flights.push_back(flight);
477 FGScheduledFlight* FGAISchedule::findAvailableFlight (const string ¤tDestination,
479 time_t min, time_t max)
481 time_t now = time(NULL) + fgGetLong("/sim/time/warp");
483 FGTrafficManager *tmgr = (FGTrafficManager *) globals->get_subsystem("traffic-manager");
484 FGScheduledFlightVecIterator fltBegin, fltEnd;
485 fltBegin = tmgr->getFirstFlight(req);
486 fltEnd = tmgr->getLastFlight(req);
489 //cerr << "Finding available flight " << endl;
491 // Traverse every registered flight
492 if (fltBegin == fltEnd) {
493 //cerr << "No Flights Scheduled for " << req << endl;
496 for (FGScheduledFlightVecIterator i = fltBegin; i != fltEnd; i++) {
497 (*i)->adjustTime(now);
498 //sort(fltBegin, fltEnd, compareScheduledFlights);
499 //cerr << counter++ << endl;
501 std::sort(fltBegin, fltEnd, compareScheduledFlights);
502 for (FGScheduledFlightVecIterator i = fltBegin; i != fltEnd; i++) {
505 if (!(*i)->isAvailable()) {
506 //cerr << (*i)->getCallSign() << "is no longer available" << endl;
509 if (!((*i)->getRequirement() == req)) {
512 if (!(((*i)->getArrivalAirport()) && ((*i)->getDepartureAirport()))) {
515 if (!(currentDestination.empty())) {
516 if (currentDestination != (*i)->getDepartureAirport()->getId()) {
517 //cerr << (*i)->getCallSign() << "Doesn't match destination" << endl;
518 //cerr << "Current Destination " << currentDestination << "Doesnt match flight's " <<
519 // (*i)->getArrivalAirport()->getId() << endl;
523 if (flights.size()) {
524 time_t arrival = flights.back()->getArrivalTime();
525 int groundTime = groundTimeFromRadius();
526 if ((*i)->getDepartureTime() < (arrival+(groundTime)))
530 time_t dep = (*i)->getDepartureTime();
531 if ((dep < min) || (dep > max))
535 // So, if we actually get here, we have a winner
536 //cerr << "found flight: " << req << " : " << currentDestination << " : " <<
537 // (*i)->getArrivalAirport()->getId() << endl;
542 // if currentDestination has a value, does it match departure of next flight?
543 // is departure time later than planned arrival?
544 // is departure port valid?
545 // is arrival port valid?
546 //cerr << "Ack no flight found: " << endl;
550 int FGAISchedule::groundTimeFromRadius()
554 else if (radius < 15)
556 else if (radius < 20)
558 else if (radius < 25)
560 else if (radius < 30)
567 double FGAISchedule::getSpeed()
569 FGScheduledFlightVecIterator i = flights.begin();
571 FGAirport* dep = (*i)->getDepartureAirport(),
572 *arr = (*i)->getArrivalAirport();
573 double dist = SGGeodesy::distanceNm(dep->geod(), arr->geod());
574 double remainingTimeEnroute = (*i)->getArrivalTime() - (*i)->getDepartureTime();
576 double speed = dist / (remainingTimeEnroute/3600.0);
577 SG_CLAMP_RANGE(speed, 300.0, 500.0);
581 void FGAISchedule::setScore ()
584 score = ((double) hits / (double) runCount);
586 if (homePort == fgGetString("/sim/presets/airport-id")) {
595 bool compareSchedules(FGAISchedule*a, FGAISchedule*b)
600 bool FGAISchedule::operator< (const FGAISchedule &other) const
602 //cerr << "Sorting " << registration << " and " << other.registration << endl;
603 double currentScore = score * (1.5 - lastRun);
604 double otherScore = other.score * (1.5 - other.lastRun);
605 return currentScore > otherScore;