Some more work on AI/ATC interaction.

* Added an AIAircraft that is shadowing the user aircraft's behavior, in terms of AI / ATC interactions
* Set up a shadow AI FlightPlan that is used for tracking the user's aircraft.

src/AIModel/AIFlightPlan.hxx

@@ -1,4 +1,4 @@
-// FGAIFlightPlan - class for loading and storing  AI flight plans
+// // FGAIFlightPlan - class for loading and storing  AI flight plans
 // Written by David Culp, started May 2004
 // - davidculp2@comcast.net
 //
@@ -89,10 +89,14 @@ public:
 
   void    create(FGAIAircraft *, FGAirport *dep, FGAirport *arr, int leg, double alt, double speed, double lat, double lon,
 		 bool firstLeg, double radius, const std::string& fltType, const std::string& aircraftType, const std::string& airline, double distance);
+  void createPushBack(FGAIAircraft *, bool, FGAirport*, double, double, double, const std::string&, const std::string&, const std::string&);
+  void createTakeOff(FGAIAircraft *, bool, FGAirport *, double, const std::string&);
 
   void setLeg(int val) { leg = val;}
   void setTime(time_t st) { start_time = st; }
   int getGate() const { return gateId; }
+  void setGate(int id) { gateId = id; };
+
   double getLeadInAngle() const { return leadInAngle; }
   const std::string& getRunway() const;
   
@@ -139,9 +143,7 @@ private:
   FGTaxiRoute *taxiRoute;
   std::string name;
 
-  void createPushBack(FGAIAircraft *, bool, FGAirport*, double, double, double, const std::string&, const std::string&, const std::string&);
   void createPushBackFallBack(FGAIAircraft *, bool, FGAirport*, double, double, double, const std::string&, const std::string&, const std::string&);
-  void createTakeOff(FGAIAircraft *, bool, FGAirport *, double, const std::string&);
   void createClimb(FGAIAircraft *, bool, FGAirport *, double, double, const std::string&);
   void createCruise(FGAIAircraft *, bool, FGAirport*, FGAirport*, double, double, double, double, const std::string&);
   void createDescent(FGAIAircraft *, FGAirport *,  double latitude, double longitude, double speed, double alt,const std::string&, double distance);

src/ATC/atc_mgr.cxx

@@ -46,6 +46,8 @@ void FGATCManager::init() {
     currentATCDialog = new FGATCDialogNew;
     currentATCDialog->init();
 
+    int leg = 0;
+
     // find a reasonable controller for our user's aircraft..
     // Let's start by working out the following three scenarios: 
     // Starting on ground at a parking position
@@ -56,35 +58,104 @@ void FGATCManager::init() {
     string airport = fgGetString("/sim/presets/airport-id");
     string parking = fgGetString("/sim/presets/parkpos");
     
+
+    // Create an (invisible) AIAircraft represenation of the current
+    // Users, aircraft, that mimicks the user aircraft's behavior.
+    string callsign= fgGetString("/sim/multiplay/callsign");
+    double longitude = fgGetDouble("/position/longitude-deg");
+    double latitude  = fgGetDouble("/position/latitude-deg");
+    double altitude  = fgGetDouble("/position/altitude-ft");
+    double heading   = fgGetDouble("/orientation/heading-deg");
+    double speed     = fgGetDouble("/velocities/groundspeed-kt");
+    double aircraftRadius = 40; // note that this is currently hardcoded to a one-size-fits all JumboJet value. Should change later;
+
+    // Next, 
+
+    ai_ac.setCallSign ( callsign  );
+    ai_ac.setLongitude( longitude );
+    ai_ac.setLatitude ( latitude  );
+    ai_ac.setAltitude ( altitude  );
+    ai_ac.setPerformance("jet_transport");
+
+    FGAIFlightPlan *fp = new FGAIFlightPlan;
+    
+    string flightPlanName = airport + "-" + airport + ".xml";
+    double cruiseAlt = 100; // Doesn't really matter right now.
+    double courseToDest = 180; // Just use something neutral; this value might affect the runway that is used though...
+    time_t deptime = 0;        // just make sure how flightplan processing is affected by this...
+
+
     FGAirport *apt = FGAirport::findByIdent(airport); 
+    FGAirportDynamics* dcs = apt->getDynamics();
+    int park_index = dcs->getNrOfParkings() - 1;
     cerr << "found information: " << runway << " " << airport << ": parking = " << parking << endl;
     if (onGround) {
-        if (parking.empty()) {
+        while (park_index >= 0 && dcs->getParkingName(park_index) != parking) park_index--;
+            if (park_index < 0) {
+                  SG_LOG( SG_GENERAL, SG_ALERT,
+                          "Failed to find parking position " << parking <<
+                           " at airport " << airport );
+             }
+        if (parking.empty() || (park_index < 0)) {
             controller = apt->getDynamics()->getTowerController();
             int stationFreq = apt->getDynamics()->getTowerFrequency(2);
             cerr << "Setting radio frequency to in airfrequency: " << stationFreq << endl;
             fgSetDouble("/instrumentation/comm[0]/frequencies/selected-mhz", ((double) stationFreq / 100.0));
-
+            leg = 4;
+            string fltType = "ga";
+            fp->createTakeOff(&ai_ac, false, apt, 0, fltType);
         } else {
             controller = apt->getDynamics()->getGroundNetwork();
             int stationFreq = apt->getDynamics()->getGroundFrequency(2);
             cerr << "Setting radio frequency to : " << stationFreq << endl;
             fgSetDouble("/instrumentation/comm[0]/frequencies/selected-mhz", ((double) stationFreq / 100.0));
-
+            leg = 2;
+            //double, lat, lon, head; // Unused variables;
+            //int getId = apt->getDynamics()->getParking(gateId, &lat, &lon, &head);
+            FGParking* parking = dcs->getParking(park_index);
+            aircraftRadius = parking->getRadius();
+            string fltType = parking->getType(); // gate / ramp, ga, etc etc. 
+            string aircraftType; // Unused.
+            string airline;      // Currently used for gate selection, but a fallback mechanism will apply when not specified.
+            fp->setGate(park_index);
+            fp->createPushBack(&ai_ac,
+                               false, 
+                               apt, 
+                               latitude,
+                               longitude,
+                               aircraftRadius,
+                               fltType,
+                               aircraftType,
+                               airline);
          } 
      } else {
         controller = 0;
      }
-    //controller = 
+
+    // Create an initial flightplan and assign it to the ai_ac. We won't use this flightplan, but it is necessary to
+    // keep the ATC code happy. 
+    
+    
+    fp->restart();
+    ai_ac.SetFlightPlan(fp);
+    if (controller) {
+        controller->announcePosition(ai_ac.getID(), fp, fp->getCurrentWaypoint()->routeIndex,
+                                      ai_ac._getLatitude(), ai_ac._getLongitude(), heading, speed, altitude,
+                                      aircraftRadius, leg, &ai_ac);
 
     //dialog.init();
    }
+}
 
 void FGATCManager::addController(FGATCController *controller) {
     activeStations.push_back(controller);
 }
 
+
+
 void FGATCManager::update ( double time ) {
     //cerr << "ATC update code is running at time: " << time << endl;
    currentATCDialog->update(time);
+
+
 }

src/ATC/atc_mgr.hxx

@@ -36,6 +36,8 @@
 
 #include <ATC/trafficcontrol.hxx>
 #include <ATC/atcdialog.hxx>
+
+#include <AIModel/AIAircraft.hxx>
 //class FGATCController;
 
 
@@ -46,6 +48,7 @@ class FGATCManager : public SGSubsystem
 {
 private:
   AtcVec activeStations;
+  FGAIAircraft ai_ac;
   FGATCController *controller; // The ATC controller that is responsible for the user's aircraft. 
   //FGATCDialogNew dialog;  // note that this variable should really replace the ugly global "currentATCDialog();