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Bugfix: Non-existent AIModels could trigger a request to load scenery tiles

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at (lon, lat) coordinates -1000,0. This patch fixes the AIModels/Traffic
Manager side of things. The AIModels subsystems allowed the creation of
AIAircraft with non-existent 3D models. If such a model didn't exist, the
aip class didn't get initialized, resulting in the above-mentioned bogus
position information. Here I circumvent this problem by a) only interacting
with the tile loader if the model is visible (and hence has succesfully been
initialized) and b) by disallowing the traffic manager to create AIAircraft
objects if the path to the 3D model doesn't exist.
This commit is contained in:
durk 2006-03-11 18:14:48 +00:00
parent 9aaac1e352
commit f8eb3d4309
2 changed files with 77 additions and 68 deletions
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84
src/AIModel/AIAircraft.cxx
View file

@ -926,48 +926,50 @@ void FGAIAircraft::getGroundElev(double dt) {
//aip.getSGLocation()->set_tile_center(Point3D(buck.get_center_lon(), buck.get_center_lat(), 0.0));
// Only do the proper hitlist stuff if we are within visible range of the viewer.
double visibility_meters = fgGetDouble("/environment/visibility-m");
FGViewer* vw = globals->get_current_view();
double
course,
distance;
//Point3D currView(vw->getLongitude_deg(),
// vw->getLatitude_deg(), 0.0);
SGWayPoint current (pos.lon(),
pos.lat(),
0);
SGWayPoint view ( vw->getLongitude_deg(),
vw->getLatitude_deg(),
0);
view.CourseAndDistance(current, &course, &distance);
if(distance > visibility_meters) {
//aip.getSGLocation()->set_cur_elev_m(aptElev);
return;
}
// FIXME: make sure the pos.lat/pos.lon values are in degrees ...
double range = 500.0;
if (!globals->get_tile_mgr()->scenery_available(pos.lat(), pos.lon(), range))
{
// Try to shedule tiles for that position.
globals->get_tile_mgr()->update( aip.getSGLocation(), range );
}
// FIXME: make sure the pos.lat/pos.lon values are in degrees ...
double alt;
if (globals->get_scenery()->get_elevation_m(pos.lat(), pos.lon(),
20000.0, alt))
tgt_altitude = alt * SG_METER_TO_FEET;
//cerr << "Target altitude : " << tgt_altitude << endl;
// if (globals->get_scenery()->get_elevation_m(pos.lat(), pos.lon(),
// 20000.0, alt))
// tgt_altitude = alt * SG_METER_TO_FEET;
//cerr << "Target altitude : " << tgt_altitude << endl;
if (!invisible) {
double visibility_meters = fgGetDouble("/environment/visibility-m");
FGViewer* vw = globals->get_current_view();
double
course,
distance;
//Point3D currView(vw->getLongitude_deg(),
// vw->getLatitude_deg(), 0.0);
SGWayPoint current (pos.lon(),
pos.lat(),
0);
SGWayPoint view ( vw->getLongitude_deg(),
vw->getLatitude_deg(),
0);
view.CourseAndDistance(current, &course, &distance);
if(distance > visibility_meters) {
//aip.getSGLocation()->set_cur_elev_m(aptElev);
return;
}
// FIXME: make sure the pos.lat/pos.lon values are in degrees ...
double range = 500.0;
if (!globals->get_tile_mgr()->scenery_available(pos.lat(), pos.lon(), range))
{
// Try to shedule tiles for that position.
globals->get_tile_mgr()->update( aip.getSGLocation(), range );
}
// FIXME: make sure the pos.lat/pos.lon values are in degrees ...
double alt;
if (globals->get_scenery()->get_elevation_m(pos.lat(), pos.lon(),
20000.0, alt))
tgt_altitude = alt * SG_METER_TO_FEET;
//cerr << "Target altitude : " << tgt_altitude << endl;
// if (globals->get_scenery()->get_elevation_m(pos.lat(), pos.lon(),
// 20000.0, alt))
// tgt_altitude = alt * SG_METER_TO_FEET;
//cerr << "Target altitude : " << tgt_altitude << endl;
}
}
void FGAIAircraft::doGroundAltitude()
{
if (fabs(altitude - (tgt_altitude+groundOffset)) > 1000.0)

61
src/Traffic/Schedule.cxx
View file

@ -366,33 +366,40 @@ bool FGAISchedule::update(time_t now)
// alt = dep->_elevation+19;
// }
// Fixme: A non-existent model path results in an
// abort, due to an unhandled exeption, in fg main loop.
FGAIAircraft *aircraft = new FGAIAircraft(this);
aircraft->setPerformance(m_class); //"jet_transport";
aircraft->setCompany(airline); //i->getAirline();
aircraft->setAcType(acType); //i->getAcType();
aircraft->setPath(modelPath.c_str());
aircraft->setFlightPlan(flightPlanName);
aircraft->setLatitude(lat);
aircraft->setLongitude(lon);
aircraft->setAltitude(i->getCruiseAlt()*100); // convert from FL to feet
aircraft->setSpeed(speed);
aircraft->setBank(0);
aircraft->SetFlightPlan(new FGAIFlightPlan(modelPath, courseToDest, i->getDepartureTime(), dep,
arr,true, radius, i->getCruiseAlt()*100, lat, lon, speed, flightType, acType, airline));
aimgr->attach(aircraft);
AIManagerRef = aircraft->getID();
//cerr << "Class: " << m_class << ". acType: " << acType << ". Airline: " << airline << ". Speed = " << speed << ". From " << dep->getId() << " to " << arr->getId() << ". Time Fraction = " << (remainingTimeEnroute/(double) totalTimeEnroute) << endl;
//cerr << "Latitude : " << lat << ". Longitude : " << lon << endl;
//cerr << "Dep : " << dep->getLatitude()<< ", "<< dep->getLongitude() << endl;
//cerr << "Arr : " << arr->getLatitude()<< ", "<< arr->getLongitude() << endl;
//cerr << "Time remaining = " << (remainingTimeEnroute/3600.0) << endl;
//cerr << "Total time = " << (totalTimeEnroute/3600.0) << endl;
//cerr << "Distance remaining = " << distanceToDest*SG_METER_TO_NM << endl;
// Only allow traffic to be created when the model path exists
SGPath mp(globals->get_fg_root());
mp.append(modelPath);
if (mp.exists())
{
FGAIAircraft *aircraft = new FGAIAircraft(this);
aircraft->setPerformance(m_class); //"jet_transport";
aircraft->setCompany(airline); //i->getAirline();
aircraft->setAcType(acType); //i->getAcType();
aircraft->setPath(modelPath.c_str());
aircraft->setFlightPlan(flightPlanName);
aircraft->setLatitude(lat);
aircraft->setLongitude(lon);
aircraft->setAltitude(i->getCruiseAlt()*100); // convert from FL to feet
aircraft->setSpeed(speed);
aircraft->setBank(0);
aircraft->SetFlightPlan(new FGAIFlightPlan(modelPath, courseToDest, i->getDepartureTime(), dep,
arr,true, radius, i->getCruiseAlt()*100, lat, lon, speed, flightType, acType, airline));
aimgr->attach(aircraft);
AIManagerRef = aircraft->getID();
//cerr << "Class: " << m_class << ". acType: " << acType << ". Airline: " << airline << ". Speed = " << speed << ". From " << dep->getId() << " to " << arr->getId() << ". Time Fraction = " << (remainingTimeEnroute/(double) totalTimeEnroute) << endl;
//cerr << "Latitude : " << lat << ". Longitude : " << lon << endl;
//cerr << "Dep : " << dep->getLatitude()<< ", "<< dep->getLongitude() << endl;
//cerr << "Arr : " << arr->getLatitude()<< ", "<< arr->getLongitude() << endl;
//cerr << "Time remaining = " << (remainingTimeEnroute/3600.0) << endl;
//cerr << "Total time = " << (totalTimeEnroute/3600.0) << endl;
//cerr << "Distance remaining = " << distanceToDest*SG_METER_TO_NM << endl;
}
else
{
SG_LOG(SG_INPUT, SG_WARN, "TrafficManager: Could not load model " << mp.str());
}
}
return true;
}