- else
- {
- RunwayGroup *currRunwayGroup = 0;
- int nrActiveRunways = 0;
- time_t dayStart = fgGetLong("/sim/time/utc/day-seconds");
- if (((dayStart - lastUpdate) > 600) || trafficType != prevTrafficType)
- {
- landing.clear();
- takeoff.clear();
- //lastUpdate = dayStart;
- prevTrafficType = trafficType;
-
- FGEnvironment
- stationweather = ((FGEnvironmentMgr *) globals->get_subsystem("environment"))
- ->getEnvironment(getLatitude(),
- getLongitude(),
- getElevation());
-
- windSpeed = stationweather.get_wind_speed_kt();
- windHeading = stationweather.get_wind_from_heading_deg();
- double averageWindSpeed = 0;
- double averageWindHeading = 0;
- double cosHeading = 0;
- double sinHeading = 0;
- // Initialize at the beginning of the next day or startup
- if ((lastUpdate == 0) || (dayStart < lastUpdate))
- {
- for (int i = 0; i < 10; i++)
- {
- avWindHeading [i] = windHeading;
- avWindSpeed [i] = windSpeed;
- }
- }
- else
- {
- if (windSpeed != avWindSpeed[9]) // update if new metar data
- {
- // shift the running average
- for (int i = 0; i < 9 ; i++)
- {
- avWindHeading[i] = avWindHeading[i+1];
- avWindSpeed [i] = avWindSpeed [i+1];
- }
- }
- avWindHeading[9] = windHeading;
- avWindSpeed [9] = windSpeed;
- }
-
- for (int i = 0; i < 10; i++)
- {
- averageWindSpeed += avWindSpeed [i];
- //averageWindHeading += avWindHeading [i];
- cosHeading += cos(avWindHeading[i] * SG_DEGREES_TO_RADIANS);
- sinHeading += sin(avWindHeading[i] * SG_DEGREES_TO_RADIANS);
- }
- averageWindSpeed /= 10;
- //averageWindHeading /= 10;
- cosHeading /= 10;
- sinHeading /= 10;
- averageWindHeading = atan2(sinHeading, cosHeading) *SG_RADIANS_TO_DEGREES;
- if (averageWindHeading < 0)
- averageWindHeading += 360.0;
- //cerr << "Wind Heading " << windHeading << " average " << averageWindHeading << endl;
- //cerr << "Wind Speed " << windSpeed << " average " << averageWindSpeed << endl;
- lastUpdate = dayStart;
- //if (wind_speed == 0) {
- // wind_heading = 270; This forces West-facing rwys to be used in no-wind situations
- // which is consistent with Flightgear's initial setup.
- //}
-
- //string rwy_no = globals->get_runways()->search(apt->getId(), int(wind_heading));
- string scheduleName;
- //cerr << "finding active Runway for" << _id << endl;
- //cerr << "Nr of seconds since day start << " << dayStart << endl;
- ScheduleTime *currSched;
- //cerr << "A"<< endl;
- currSched = rwyPrefs.getSchedule(trafficType.c_str());
- if (!(currSched))
- return;
- //cerr << "B"<< endl;
- scheduleName = currSched->getName(dayStart);
- maxTail = currSched->getTailWind ();
- maxCross = currSched->getCrossWind ();
- //cerr << "SChedule anme = " << scheduleName << endl;
- if (scheduleName.empty())
- return;
- //cerr << "C"<< endl;
- currRunwayGroup = rwyPrefs.getGroup(scheduleName);
- //cerr << "D"<< endl;
- if (!(currRunwayGroup))
- return;
- nrActiveRunways = currRunwayGroup->getNrActiveRunways();
- //cerr << "Nr of Active Runways = " << nrActiveRunways << endl;
- currRunwayGroup->setActive(_id, averageWindSpeed, averageWindHeading, maxTail, maxCross);
- nrActiveRunways = currRunwayGroup->getNrActiveRunways();
- for (int i = 0; i < nrActiveRunways; i++)
- {
- type = "unknown"; // initialize to something other than landing or takeoff
- currRunwayGroup->getActive(i, name, type);
- if (type == "landing")
- {
- landing.push_back(name);
- //cerr << "Landing " << name << endl;
- }
- if (type == "takeoff")
- {
- takeoff.push_back(name);
- //cerr << "takeoff " << name << endl;
- }
- }
- }
- if (action == 1) // takeoff
- {
- int nr = takeoff.size();
- if (nr)
- {
- runway = takeoff[(rand() % nr)];
- }
- else
- { // Fallback
- runway = chooseRunwayFallback();
- }
- }
- if (action == 2) // landing
- {
- int nr = landing.size();
- if (nr)
- {
- runway = landing[(rand() % nr)];
- }
- else
- { //fallback
- runway = chooseRunwayFallback();
- }
- }
-
- //runway = globals->get_runways()->search(_id, int(windHeading));
- //cerr << "Seleceted runway: " << runway << endl;