src/ATC/atc_mgr.cxx

   1 /******************************************************************************
   2  * atc_mgr.cxx
   3  * Written by Durk Talsma, started August 1, 2010.
   4  *
   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.
   9  *
  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.
  14  *
  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.
  18  *
  19  *
  20  **************************************************************************/
  21
  22
  23 #ifdef HAVE_CONFIG_H
  24 #  include "config.h"
  25 #endif
  26
  27 #include <iostream>
  28
  29 #include <Airports/dynamics.hxx>
  30 #include <Airports/airport.hxx>
  31 #include <Scenery/scenery.hxx>
  32 #include "atc_mgr.hxx"
  33
  34
  35 using std::string;
  36
  37 FGATCManager::FGATCManager() :
  38     controller(NULL),
  39     prevController(NULL),
  40     networkVisible(false),
  41     initSucceeded(false)
  42 {
  43 }
  44
  45 FGATCManager::~FGATCManager() {
  46 }
  47
  48 void FGATCManager::init() {
  49     SGSubsystem::init();
  50
  51     int leg = 0;
  52
  53     trans_num = globals->get_props()->getNode("/sim/atc/transmission-num", true);
  54
  55     // find a reasonable controller for our user's aircraft..
  56     // Let's start by working out the following three scenarios:
  57     // Starting on ground at a parking position
  58     // Starting on ground at the runway.
  59     // Starting in the Air
  60     bool onGround  = fgGetBool("/sim/presets/onground");
  61     string runway  = fgGetString("/sim/atc/runway");
  62     string airport = fgGetString("/sim/presets/airport-id");
  63     string parking = fgGetString("/sim/presets/parkpos");
  64
  65
  66     // Create an (invisible) AIAircraft represenation of the current
  67     // Users, aircraft, that mimicks the user aircraft's behavior.
  68     string callsign= fgGetString("/sim/multiplay/callsign");
  69     double longitude = fgGetDouble("/position/longitude-deg");
  70     double latitude  = fgGetDouble("/position/latitude-deg");
  71     double altitude  = fgGetDouble("/position/altitude-ft");
  72     double heading   = fgGetDouble("/orientation/heading-deg");
  73     double speed     = fgGetDouble("/velocities/groundspeed-kt");
  74     double aircraftRadius = 40; // note that this is currently hardcoded to a one-size-fits all JumboJet value. Should change later;
  75
  76
  77     ai_ac.setCallSign ( callsign  );
  78     ai_ac.setLongitude( longitude );
  79     ai_ac.setLatitude ( latitude  );
  80     ai_ac.setAltitude ( altitude  );
  81     ai_ac.setPerformance("", "jet_transport");
  82
  83     // NEXT UP: Create a traffic Schedule and fill that with appropriate information. This we can use to flight planning.
  84     // Note that these are currently only defaults.
  85     FGAISchedule *trafficRef = new FGAISchedule;
  86     trafficRef->setFlightType("gate");
  87
  88     FGScheduledFlight *flight =  new FGScheduledFlight;
  89     flight->setDepartureAirport(airport);
  90     flight->setArrivalAirport(airport);
  91     flight->initializeAirports();
  92     flight->setFlightRules("IFR");
  93     flight->setCallSign(callsign);
  94
  95     trafficRef->assign(flight);
  96     FGAIFlightPlan *fp = 0;
  97     ai_ac.setTrafficRef(trafficRef);
  98
  99     string flightPlanName = airport + "-" + airport + ".xml";
 100     //double cruiseAlt = 100; // Doesn't really matter right now.
 101     //double courseToDest = 180; // Just use something neutral; this value might affect the runway that is used though...
 102     //time_t deptime = 0;        // just make sure how flightplan processing is affected by this...
 103
 104
 105     FGAirport *apt = FGAirport::findByIdent(airport);
 106     if (apt && onGround) {// && !runway.empty()) {
 107         FGAirportDynamics* dcs = apt->getDynamics();
 108         ParkingAssignment pk(dcs->getParkingByName(parking));
 109
 110         // No valid parking location, so either at the runway or at a random location.
 111         if (pk.isValid()) {
 112             dcs->setParkingAvailable(pk.parking()->guid(), false);
 113             fp = new FGAIFlightPlan;
 114             controller = apt->getDynamics()->getStartupController();
 115             int stationFreq = apt->getDynamics()->getGroundFrequency(1);
 116             if (stationFreq > 0)
 117             {
 118                 //cerr << "Setting radio frequency to : " << stationFreq << endl;
 119                 fgSetDouble("/instrumentation/comm[0]/frequencies/selected-mhz", ((double) stationFreq / 100.0));
 120             }
 121             leg = 1;
 122             //double, lat, lon, head; // Unused variables;
 123             //int getId = apt->getDynamics()->getParking(gateId, &lat, &lon, &head);
 124             aircraftRadius = pk.parking()->getRadius();
 125             string fltType = pk.parking()->getType(); // gate / ramp, ga, etc etc.
 126             string aircraftType; // Unused.
 127             string airline;      // Currently used for gate selection, but a fallback mechanism will apply when not specified.
 128             fp->setGate(pk);
 129             if (!(fp->createPushBack(&ai_ac,
 130                                      false,
 131                                      apt,
 132                                      aircraftRadius,
 133                                      fltType,
 134                                      aircraftType,
 135                                      airline))) {
 136                 controller = 0;
 137                 return;
 138             }
 139
 140
 141
 142         } else if (!runway.empty()) {
 143             controller = apt->getDynamics()->getTowerController();
 144             int stationFreq = apt->getDynamics()->getTowerFrequency(2);
 145             if (stationFreq > 0)
 146             {
 147                 //cerr << "Setting radio frequency to in airfrequency: " << stationFreq << endl;
 148                 fgSetDouble("/instrumentation/comm[0]/frequencies/selected-mhz", ((double) stationFreq / 100.0));
 149             }
 150             fp = new FGAIFlightPlan;
 151             leg = 3;
 152             string fltType = "ga";
 153             fp->setRunway(runway);
 154             fp->createTakeOff(&ai_ac, false, apt, 0, fltType);
 155             ai_ac.setTakeOffStatus(2);
 156         } else {
 157                 // We're on the ground somewhere. Handle this case later.
 158         }
 159
 160         if (fp) {
 161             fp->getLastWaypoint()->setName( fp->getLastWaypoint()->getName() + string("legend"));
 162         }
 163      } else {
 164         controller = 0;
 165      }
 166
 167     // Create an initial flightplan and assign it to the ai_ac. We won't use this flightplan, but it is necessary to
 168     // keep the ATC code happy.
 169     if (fp) {
 170         fp->restart();
 171         fp->setLeg(leg);
 172         ai_ac.SetFlightPlan(fp);
 173     }
 174     if (controller) {
 175         controller->announcePosition(ai_ac.getID(), fp, fp->getCurrentWaypoint()->getRouteIndex(),
 176                                       ai_ac._getLatitude(), ai_ac._getLongitude(), heading, speed, altitude,
 177                                       aircraftRadius, leg, &ai_ac);
 178
 179     //dialog.init();
 180
 181    //osg::Node* node = apt->getDynamics()->getGroundNetwork()->getRenderNode();
 182    //cerr << "Adding groundnetWork to the scenegraph::init" << endl;
 183    //globals->get_scenery()->get_scene_graph()->addChild(node);
 184    }
 185    initSucceeded = true;
 186 }
 187
 188 void FGATCManager::addController(FGATCController *controller) {
 189     activeStations.push_back(controller);
 190 }
 191
 192 void FGATCManager::update ( double time ) {
 193     //cerr << "ATC update code is running at time: " << time << endl;
 194     // Test code: let my virtual co-pilot handle ATC:
 195
 196
 197
 198     FGAIFlightPlan *fp = ai_ac.GetFlightPlan();
 199
 200     /* test code : find out how the routing develops */
 201     if (fp) {
 202         int size = fp->getNrOfWayPoints();
 203         //cerr << "Setting pos" << pos << " ";
 204         //cerr << "setting intentions " ;
 205         // This indicates that we have run out of waypoints: Im future versions, the
 206         // user should be able to select a new route, but for now just shut down the
 207         // system.
 208         if (size < 3) {
 209             //cerr << "Shutting down the atc_mgr" << endl;
 210             return;
 211         }
 212 #if 0
 213         // Test code: Print how far we're progressing along the taxi route.
 214         //std::cerr << "Size of waypoint cue " << size << " ";
 215         for (int i = 0; i < size; i++) {
 216             int val = fp->getRouteIndex(i);
 217             //std::cerr << fp->getWayPoint(i)->getName() << " ";
 218             //if ((val) && (val != pos)) {
 219             //    intentions.push_back(val);
 220             //    std::cerr << "[done ] " << std::endl;
 221             //}
 222         }
 223         //std::cerr << "[done ] " << std::endl;
 224 #endif
 225     }
 226     if (fp) {
 227         //cerr << "Currently at leg : " << fp->getLeg() << endl;
 228     }
 229     double longitude = fgGetDouble("/position/longitude-deg");
 230     double latitude  = fgGetDouble("/position/latitude-deg");
 231     double heading   = fgGetDouble("/orientation/heading-deg");
 232     double speed     = fgGetDouble("/velocities/groundspeed-kt");
 233     double altitude  = fgGetDouble("/position/altitude-ft");
 234
 235     /*
 236     SGGeod me(SGGeod::fromDegM(longitude,
 237                                latitude,
 238                                altitude));
 239     SGGeod wpt1(SGGeod::fromDegM(fp->getWayPoint(1)->getLongitude(),
 240                                 fp->getWayPoint(1)->getLatitude(),
 241                                 fp->getWayPoint(1)->getAltitude()));
 242     SGGeod wpt2(SGGeod::fromDegM(fp->getWayPoint(1)->getLongitude(),
 243                                 fp->getWayPoint(1)->getLatitude(),
 244                                 fp->getWayPoint(1)->getAltitude()));
 245
 246     double course1, az1, dist1;
 247     double course2, az2, dist2;
 248     SGGeodesy::inverse(me, wpt1, course1, az1, dist1);
 249
 250     cerr << "Bearing to nearest waypoint : " << course1 << " " << dist1 << ". (course " << course2 << ")." <<  endl;
 251     */
 252     ai_ac.setLatitude(latitude);
 253     ai_ac.setLongitude(longitude);
 254     ai_ac.setAltitude(altitude);
 255     ai_ac.setHeading(heading);
 256     ai_ac.setSpeed(speed);
 257     ai_ac.update(time);
 258     controller = ai_ac.getATCController();
 259     FGATCDialogNew::instance()->update(time);
 260     if (controller) {
 261        //cerr << "name of previous waypoint : " << fp->getPreviousWaypoint()->getName() << endl;
 262
 263         //cerr << "Running FGATCManager::update()" << endl;
 264         //cerr << "Currently under control of " << controller->getName() << endl;
 265         controller->updateAircraftInformation(ai_ac.getID(),
 266                                               latitude,
 267                                               longitude,
 268                                               heading,
 269                                               speed,
 270                                               altitude, time);
 271         //string airport = fgGetString("/sim/presets/airport-id");
 272         //FGAirport *apt = FGAirport::findByIdent(airport);
 273         // AT this stage we should update the flightplan, so that waypoint incrementing is conducted as well as leg loading.
 274         int n = trans_num->getIntValue();
 275         if (n == 1) {
 276             //cerr << "Toggling ground network visibility " << networkVisible << endl;
 277             networkVisible = !networkVisible;
 278             trans_num->setIntValue(-1);
 279         }
 280         if ((controller != prevController) && (prevController)) {
 281             prevController->render(false);
 282         }
 283         controller->render(networkVisible);
 284
 285         //cerr << "Adding groundnetWork to the scenegraph::update" << endl;
 286         prevController = controller;
 287    }
 288    for (AtcVecIterator atc = activeStations.begin(); atc != activeStations.end(); atc++) {
 289        (*atc)->update(time);
 290    }
 291 }