]> git.mxchange.org Git - flightgear.git/blobdiff - src/AIModel/AIAircraft.cxx
Fix a Clang warning, checking signed char as if it was unsigned.
[flightgear.git] / src / AIModel / AIAircraft.cxx
index be0556c8533dad170a0b3c56d981f1162ecf8c82..180f0bfc8b27809e6f500e81d62d8165b0f89cd6 100644 (file)
 #  include <config.h>
 #endif
 
-#include <simgear/route/waypoint.hxx>
 #include <Main/fg_props.hxx>
 #include <Main/globals.hxx>
-#include <Main/viewer.hxx>
+#include <Viewer/viewer.hxx>
 #include <Scenery/scenery.hxx>
 #include <Scenery/tilemgr.hxx>
 #include <Airports/dynamics.hxx>
@@ -47,13 +46,10 @@ using std::string;
 #include "AIAircraft.hxx"
 #include "performancedata.hxx"
 #include "performancedb.hxx"
+#include <signal.h>
 
-
-#define TGT_VS_CUTOFF 10000
 //#include <Airports/trafficcontroller.hxx>
 
-static string tempReg;
-
 FGAIAircraft::FGAIAircraft(FGAISchedule *ref) :
      /* HOT must be disabled for AI Aircraft,
       * otherwise traffic detection isn't working as expected.*/
@@ -122,23 +118,14 @@ void FGAIAircraft::readFromScenario(SGPropertyNode* scFileNode) {
 void FGAIAircraft::bind() {
     FGAIBase::bind();
 
-    props->tie("controls/gear/gear-down",
-               SGRawValueMethods<FGAIAircraft,bool>(*this,
-                                                    &FGAIAircraft::_getGearDown));
-    props->tie("transponder-id",
-               SGRawValueMethods<FGAIAircraft,const char*>(*this,
-                                                    &FGAIAircraft::_getTransponderCode));
-}
-
-
-void FGAIAircraft::unbind() {
-    FGAIBase::unbind();
-
-    props->untie("controls/gear/gear-down");
-    props->untie("transponder-id");
+    tie("controls/gear/gear-down",
+        SGRawValueMethods<FGAIAircraft,bool>(*this,
+                &FGAIAircraft::_getGearDown));
+    tie("transponder-id",
+        SGRawValueMethods<FGAIAircraft,const char*>(*this,
+                &FGAIAircraft::_getTransponderCode));
 }
 
-
 void FGAIAircraft::update(double dt) {
     FGAIBase::update(dt);
     Run(dt);
@@ -157,7 +144,6 @@ void FGAIAircraft::setPerformance(const std::string& acclass) {
 
 
  void FGAIAircraft::Run(double dt) {
-      
       FGAIAircraft::dt = dt;
     
      bool outOfSight = false, 
@@ -194,6 +180,7 @@ void FGAIAircraft::checkVisibility()
 
 void FGAIAircraft::AccelTo(double speed) {
     tgt_speed = speed;
+    //assertSpeed(speed);
     if (!isStationary())
         _needsGroundElevation = true;
 }
@@ -287,9 +274,16 @@ void FGAIAircraft::ProcessFlightPlan( double dt, time_t now ) {
         curr = fp->getCurrentWaypoint();
         next = fp->getNextWaypoint();
     }
+    if (!curr)
+    {
+        // Oops! FIXME
+        return;
+    }
+
     if (! leadPointReached(curr)) {
         controlHeading(curr);
         controlSpeed(curr, next);
+        
             /*
             if (speed < 0) { 
                 cerr << getCallSign() 
@@ -353,19 +347,19 @@ void FGAIAircraft::ProcessFlightPlan( double dt, time_t now ) {
             fp->setLeadDistance(tgt_speed, tgt_heading, curr, next);
         }
 
+
         if (!(prev->getOn_ground()))  // only update the tgt altitude from flightplan if not on the ground
         {
             tgt_altitude_ft = prev->getAltitude();
             if (curr->getCrossat() > -1000.0) {
                 use_perf_vs = false;
-//                 tgt_vs = (curr->getCrossat() - altitude_ft) / (fp->getDistanceToGo(pos.getLatitudeDeg(), pos.getLongitudeDeg(), curr)
-//                          / 6076.0 / speed*60.0);
-//                 if (fabs(tgt_vs) > TGT_VS_CUTOFF) { SG_LOG(SG_GENERAL, SG_ALERT, "Rediculously high vertical speed caculated at " << SG_ORIGIN << ". Corresponding to " << (tgt_vs * .005) << "degrees of pitch angle" << prev->getName()); };
-//                 if (tgt_vs < -1500)
-//                     tgt_vs = -1500;
-//                 if (tgt_vs > 1500) 
-//                     tgt_vs = 1500;
-//                 checkTcas();
+                // Distance to go in meters
+                double vert_dist_ft = curr->getCrossat() - altitude_ft;
+                double err_dist     = prev->getCrossat() - altitude_ft;
+                double dist_m       = fp->getDistanceToGo(pos.getLatitudeDeg(), pos.getLongitudeDeg(), curr);
+                tgt_vs = calcVerticalSpeed(vert_dist_ft, dist_m, speed, err_dist);
+                
+                checkTcas();
                 tgt_altitude_ft = curr->getCrossat();
             } else {
                 use_perf_vs = true;
@@ -377,6 +371,49 @@ void FGAIAircraft::ProcessFlightPlan( double dt, time_t now ) {
     }
 }
 
+double FGAIAircraft::calcVerticalSpeed(double vert_ft, double dist_m, double speed, double err)
+{
+    // err is negative when we passed too high
+    double vert_m = vert_ft * SG_FEET_TO_METER;
+    //double err_m  = err     * SG_FEET_TO_METER;
+    //double angle = atan2(vert_m, dist_m);
+    double speedMs = (speed * SG_NM_TO_METER) / 3600;
+    //double vs = cos(angle) * speedMs; // Now in m/s
+    double vs = 0;
+    //cerr << "Error term = " << err_m << endl;
+    if (dist_m) {
+        vs = ((vert_m) / dist_m) * speedMs;
+    }
+    // Convert to feet per minute
+    vs *= (SG_METER_TO_FEET * 60);
+    //if (getCallSign() == "LUFTHANSA2002")
+    //if (fabs(vs) > 100000) {
+//     if (getCallSign() == "LUFTHANSA2057") {
+//         cerr << getCallSign() << " " << fp->getPreviousWaypoint()->getName() << ". Alt = " << altitude_ft <<  " vertical dist = " << vert_m << " horiz dist = " << dist_m << " << angle  = " << angle * SG_RADIANS_TO_DEGREES << " vs " << vs << " horizontal speed " << speed << "Previous crossAT " << fp->getPreviousWaypoint()->getCrossat() << endl;
+//     //= (curr->getCrossat() - altitude_ft) / (fp->getDistanceToGo(pos.getLatitudeDeg(), pos.getLongitudeDeg(), curr)
+//     //                     / 6076.0 / speed*60.0);
+//         //raise(SIGSEGV);
+//     }
+    return vs;
+}
+
+void FGAIAircraft::assertSpeed(double speed)
+{
+    if ((speed < -50) || (speed > 1000)) {
+        cerr << getCallSign() << " " 
+            << "Previous waypoint " << fp->getPreviousWaypoint()->getName() << " "
+            << "Departure airport " << trafficRef->getDepartureAirport() << " "
+            << "Leg " << fp->getLeg() <<  " "
+            << "target_speed << " << tgt_speed <<  " "
+            << "speedFraction << " << speedFraction << " "
+            << "Currecnt speed << " << speed << " "
+            << endl;
+       //raise(SIGSEGV);
+    }
+}
+
+
+
 void FGAIAircraft::checkTcas(void)
 {
     if (props->getIntValue("tcas/threat-level",0)==3)
@@ -505,13 +542,16 @@ void FGAIAircraft::getGroundElev(double dt) {
 
 
 void FGAIAircraft::doGroundAltitude() {
-
-    if ((fabs(altitude_ft - (tgt_altitude_ft+groundOffset)) > 1000.0)||
-        (isStationary()))
-        altitude_ft = (tgt_altitude_ft + groundOffset);
-    else
-        altitude_ft += 0.1 * ((tgt_altitude_ft+groundOffset) - altitude_ft);
-    tgt_vs = 0;
+    if ((fp->getLeg() == 7) && ((altitude_ft -  tgt_altitude_ft) > 5)) {
+        tgt_vs = -500;
+    } else {
+        if ((fabs(altitude_ft - (tgt_altitude_ft+groundOffset)) > 1000.0)||
+            (isStationary()))
+            altitude_ft = (tgt_altitude_ft + groundOffset);
+        else
+            altitude_ft += 0.1 * ((tgt_altitude_ft+groundOffset) - altitude_ft);
+        tgt_vs = 0;
+    }
 }
 
 
@@ -536,6 +576,7 @@ void FGAIAircraft::announcePositionToController() {
         case 3:              //Take off tower controller
             if (trafficRef->getDepartureAirport()->getDynamics()) {
                 controller = trafficRef->getDepartureAirport()->getDynamics()->getTowerController();
+                towerController = 0;
             } else {
                 cerr << "Error: Could not find Dynamics at airport : " << trafficRef->getDepartureAirport()->getId() << endl;
             }
@@ -652,7 +693,6 @@ void FGAIAircraft::handleFirstWaypoint() {
     FGAIWaypoint* next = 0;// the next plus 1
 
     spinCounter = 0;
-    tempReg = "";
 
     //TODO fp should handle this
     fp->IncrementWaypoint(eraseWaypoints);
@@ -685,11 +725,14 @@ void FGAIAircraft::handleFirstWaypoint() {
     if (curr->getCrossat() > -1000.0) //use a calculated descent/climb rate
     {
         use_perf_vs = false;
-/*        tgt_vs = (curr->getCrossat() - prev->getAltitude())
-                 / (fp->getDistanceToGo(pos.getLatitudeDeg(), pos.getLongitudeDeg(), curr)
-                    / 6076.0 / prev->getSpeed()*60.0);
-        if (fabs(tgt_vs) > TGT_VS_CUTOFF) { SG_LOG(SG_GENERAL, SG_ALERT, "Rediculously high vertical speed caculated at " << SG_ORIGIN); };
-        checkTcas();*/
+        //tgt_vs = (curr->getCrossat() - prev->getAltitude())
+        //         / (fp->getDistanceToGo(pos.getLatitudeDeg(), pos.getLongitudeDeg(), curr)
+        //            / 6076.0 / prev->getSpeed()*60.0);
+        double vert_dist_ft = curr->getCrossat() - altitude_ft;
+        double err_dist     = prev->getCrossat() - altitude_ft;
+        double dist_m       = fp->getDistanceToGo(pos.getLatitudeDeg(), pos.getLongitudeDeg(), curr);
+        tgt_vs = calcVerticalSpeed(vert_dist_ft, dist_m, speed, err_dist);
+        checkTcas();
         tgt_altitude_ft = curr->getCrossat();
     } else {
         use_perf_vs = true;
@@ -740,6 +783,7 @@ bool FGAIAircraft::leadPointReached(FGAIWaypoint* curr) {
           if (tgt_speed > -0.5) {
                 tgt_speed = -0.5;
           }
+          //assertSpeed(tgt_speed);
           if (fp->getPreviousWaypoint()->getSpeed() < tgt_speed) {
               fp->getPreviousWaypoint()->setSpeed(tgt_speed);
           }
@@ -757,7 +801,7 @@ bool FGAIAircraft::leadPointReached(FGAIWaypoint* curr) {
     //          << lead_dist << " " << curr->name 
     //          << " Ground target speed " << groundTargetSpeed << endl;
     double bearing = 0;
-    if (speed > 50) { // don't do bearing calculations for ground traffic
+     // don't do bearing calculations for ground traffic
        bearing = getBearing(fp->getBearing(pos.getLatitudeDeg(), pos.getLongitudeDeg(), curr));
        if (bearing < minBearing) {
             minBearing = bearing;
@@ -765,33 +809,37 @@ bool FGAIAircraft::leadPointReached(FGAIWaypoint* curr) {
                  minBearing = 10;
             }
             if ((minBearing < 360.0) && (minBearing > 10.0)) {
-                speedFraction = cos(minBearing *SG_DEGREES_TO_RADIANS);
+                speedFraction = 0.5 + (cos(minBearing *SG_DEGREES_TO_RADIANS) * 0.5);
             } else {
                 speedFraction = 1.0;
             }
-       }
-    } 
+       } 
     if (trafficRef) {
          //cerr << "Tracking callsign : \"" << fgGetString("/ai/track-callsign") << "\"" << endl;
-/*         if (trafficRef->getCallSign() == fgGetString("/ai/track-callsign")) {
-              cerr << trafficRef->getCallSign() << " " << tgt_altitude_ft << " " << _getSpeed() << " " 
-                   << _getAltitude() << " "<< _getLatitude() << " " << _getLongitude() << " " << dist_to_go << " " << lead_dist << " " << curr->name << " " << vs << " " << tgt_vs << " " << bearing << " " << minBearing << " " << speedFraction << endl; 
-         }*/
+         //if (trafficRef->getCallSign() == fgGetString("/ai/track-callsign")) {
+              //cerr << trafficRef->getCallSign() << " " << tgt_altitude_ft << " " << _getSpeed() << " " 
+              //     << _getAltitude() << " "<< _getLatitude() << " " << _getLongitude() << " " << dist_to_go << " " << lead_dist << " " << curr->getName() << " " << vs << " " << //tgt_vs << " " << bearing << " " << minBearing << " " << speedFraction << endl; 
+         //}
      }
-    if ((dist_to_go < lead_dist) || (bearing > (minBearing * 1.1))) {
+    if ((dist_to_go < lead_dist) ||
+        ((dist_to_go > prev_dist_to_go) && (bearing > (minBearing * 1.1))) ) {
         minBearing = 360;
+        speedFraction = 1.0;
+        prev_dist_to_go = HUGE_VAL;
         return true;
     } else {
+        prev_dist_to_go = dist_to_go;
         return false;
     }
 }
 
 
-bool FGAIAircraft::aiTrafficVisible() {
-  SGGeod userPos(SGGeod::fromDeg(fgGetDouble("/position/longitude-deg"), 
-    fgGetDouble("/position/latitude-deg")));
-  
-  return (SGGeodesy::distanceNm(userPos, pos) <= TRAFFICTOAIDISTTODIE);
+bool FGAIAircraft::aiTrafficVisible()
+{
+    SGVec3d cartPos = SGVec3d::fromGeod(pos);
+    const double d2 = (TRAFFICTOAIDISTTODIE * SG_NM_TO_METER) *
+        (TRAFFICTOAIDISTTODIE * SG_NM_TO_METER);
+    return (distSqr(cartPos, globals->get_aircraft_positon_cart()) < d2);
 }
 
 
@@ -826,9 +874,27 @@ bool FGAIAircraft::handleAirportEndPoints(FGAIWaypoint* prev, time_t now) {
     }
     if (prev->contains(string("DepartureHold"))) {
         //cerr << "Passing point DepartureHold" << endl;
-        scheduleForATCTowerDepartureControl(2);
+        scheduleForATCTowerDepartureControl(1);
     }
-
+    if (prev->contains(string("Accel"))) {
+        takeOffStatus = 3;
+    }
+    //if (prev->contains(string("landing"))) {
+    //    if (speed < _performance->vTaxi() * 2) {
+    //        fp->shortenToFirst(2, "legend");
+    //    }
+    //}
+    //if (prev->contains(string("final"))) {
+    //    
+    //     cerr << getCallSign() << " " 
+    //        << fp->getPreviousWaypoint()->getName() 
+    //        << ". Alt = " << altitude_ft 
+    //        << " vs " << vs 
+    //        << " horizontal speed " << speed 
+    //        << "Previous crossAT " << fp->getPreviousWaypoint()->getCrossat()
+    //        << "Airport elevation" << getTrafficRef()->getArrivalAirport()->getElevation() 
+    //        << "Altitude difference " << (altitude_ft -  fp->getPreviousWaypoint()->getCrossat()) << endl;
+    //q}
     // This is the last taxi waypoint, and marks the the end of the flight plan
     // so, the schedule should update and wait for the next departure time.
     if (prev->contains("END")) {
@@ -868,9 +934,9 @@ void FGAIAircraft::controlHeading(FGAIWaypoint* curr) {
         cerr << "calc_bearing is not a finite number : "
         << "Speed " << speed
         << "pos : " << pos.getLatitudeDeg() << ", " << pos.getLongitudeDeg()
-        << "waypoint " << curr->getLatitude() << ", " << curr->getLongitude() << endl;
-        cerr << "waypoint name " << curr->getName();
-        exit(1);                 // FIXME
+        << ", waypoint: " << curr->getLatitude() << ", " << curr->getLongitude() << endl;
+        cerr << "waypoint name: '" << curr->getName() << "'" << endl;
+        //exit(1);                 // FIXME
     }
 }
 
@@ -887,6 +953,7 @@ void FGAIAircraft::controlSpeed(FGAIWaypoint* curr, FGAIWaypoint* next) {
 
     if (fabs(speed_diff) > 10) {
         prevSpeed = speed;
+        //assertSpeed(speed);
         if (next) {
             fp->setLeadDistance(speed, tgt_heading, curr, next);
         }
@@ -986,7 +1053,7 @@ void FGAIAircraft::updateHeading() {
         // If on ground, calculate heading change directly
         if (onGround()) {
             double headingDiff = fabs(hdg-tgt_heading);
-            double bank_sense = 0.0;
+//            double bank_sense = 0.0;
         /*
         double diff = fabs(hdg - tgt_heading);
         if (diff > 180)
@@ -1006,22 +1073,23 @@ void FGAIAircraft::updateHeading() {
             if (sum > 360.0) 
                 sum -= 360.0;
             if (fabs(sum - tgt_heading) > 0.0001) {
-                bank_sense = -1.0;
+//                bank_sense = -1.0;
             } else {
-                bank_sense = 1.0;
+//                bank_sense = 1.0;
             }
             //if (trafficRef)
             // cerr << trafficRef->getCallSign() << " Heading " 
             //         << hdg << ". Target " << tgt_heading <<  ". Diff " << fabs(sum - tgt_heading) << ". Speed " << speed << endl;
             //if (headingDiff > 60) {
             groundTargetSpeed = tgt_speed; // * cos(headingDiff * SG_DEGREES_TO_RADIANS);
+            //assertSpeed(groundTargetSpeed);
                 //groundTargetSpeed = tgt_speed - tgt_speed * (headingDiff/180);
             //} else {
             //    groundTargetSpeed = tgt_speed;
             //}
             if (sign(groundTargetSpeed) != sign(tgt_speed))
                 groundTargetSpeed = 0.21 * sign(tgt_speed); // to prevent speed getting stuck in 'negative' mode
-            
+            //assertSpeed(groundTargetSpeed);
             // Only update the target values when we're not moving because otherwise we might introduce an enormous target change rate while waiting a the gate, or holding.
             if (speed != 0) {
                 if (headingDiff > 30.0) {
@@ -1050,6 +1118,9 @@ void FGAIAircraft::updateHeading() {
                 //     << hdg << ". Target " << tgt_heading <<  ". Diff " << fabs(sum - tgt_heading) << ". Speed " << speed << "Heading change rate : " << headingChangeRate << " bacnk sence " << bank_sense << endl;
            hdg += headingChangeRate * dt * sqrt(fabs(speed) / 15);
             headingError = headingDiff;
+            if (fabs(headingError) < 1.0) {
+                hdg = tgt_heading;
+            }
         } else {
             if (fabs(speed) > 1.0) {
                 turn_radius_ft = 0.088362 * speed * speed
@@ -1122,7 +1193,12 @@ void FGAIAircraft::updateVerticalSpeedTarget() {
                     tgt_vs = -_performance->descentRate();
             }
         } else {
-            double max_vs = 4*(tgt_altitude_ft - altitude_ft);
+            double vert_dist_ft = fp->getCurrentWaypoint()->getCrossat() - altitude_ft;
+            double err_dist     = 0; //prev->getCrossat() - altitude_ft;
+            double dist_m       = fp->getDistanceToGo(pos.getLatitudeDeg(), pos.getLongitudeDeg(), fp->getCurrentWaypoint());
+            tgt_vs = calcVerticalSpeed(vert_dist_ft, dist_m, speed, err_dist);
+            //cerr << "Target vs before : " << tgt_vs;
+/*            double max_vs = 10*(tgt_altitude_ft - altitude_ft);
             double min_vs = 100;
             if (tgt_altitude_ft < altitude_ft)
                 min_vs = -100.0;
@@ -1131,7 +1207,8 @@ void FGAIAircraft::updateVerticalSpeedTarget() {
                 tgt_vs = max_vs;
 
             if (fabs(tgt_vs) < fabs(min_vs))
-                tgt_vs = min_vs;
+                tgt_vs = min_vs;*/
+            //cerr << "target vs : after " << tgt_vs << endl;
         }
     } //else 
     //    tgt_vs = 0.0;
@@ -1178,6 +1255,14 @@ void FGAIAircraft::handleATCRequests() {
                                               altitude_ft, dt);
         processATC(controller->getInstruction(getID()));
     }
+    if (towerController) {
+        towerController->updateAircraftInformation(getID(),
+                                              pos.getLatitudeDeg(),
+                                              pos.getLongitudeDeg(),
+                                              hdg,
+                                              speed,
+                                              altitude_ft, dt);
+    }
 }
 
 void FGAIAircraft::updateActualState() {
@@ -1186,10 +1271,10 @@ void FGAIAircraft::updateActualState() {
     updatePosition();
 
     if (onGround())
-        speed = _performance->actualSpeed(this, groundTargetSpeed, dt);
+        speed = _performance->actualSpeed(this, groundTargetSpeed, dt, holdPos);
     else
-        speed = _performance->actualSpeed(this, (tgt_speed *speedFraction), dt);
-
+        speed = _performance->actualSpeed(this, (tgt_speed *speedFraction), dt, false);
+    //assertSpeed(speed);
     updateHeading();
     roll = _performance->actualBankAngle(this, tgt_roll, dt);