X-Git-Url: https://git.mxchange.org/?a=blobdiff_plain;ds=sidebyside;f=src%2FMain%2Ffg_init.cxx;h=f7c591d397dc3e17d66307259293b54a2bc4cf66;hb=a704a6208131cad4f12123a72acdb1fb3dc6658f;hp=78915e7254b5f94af51e8d6e34e9ef37125ba96d;hpb=17ec3278ed1c008c2af7d450913a3dd59e931267;p=flightgear.git

diff --git a/src/Main/fg_init.cxx b/src/Main/fg_init.cxx
index 78915e725..f7c591d39 100644
--- a/src/Main/fg_init.cxx
+++ b/src/Main/fg_init.cxx
@@ -34,12 +34,6 @@
 #  define isatty _isatty
 #endif
 
-// work around a stdc++ lib bug in some versions of linux, but doesn't
-// seem to hurt to have this here for all versions of Linux.
-#ifdef linux
-#  define _G_NO_EXTERN_TEMPLATES
-#endif
-
 #include <simgear/compiler.h>
 
 #include <string>
@@ -60,11 +54,9 @@
 #include <simgear/misc/interpolator.hxx>
 #include <simgear/scene/material/matlib.hxx>
 #include <simgear/scene/model/particles.hxx>
-#include <simgear/sound/soundmgr_openal.hxx>
 
 #include <Aircraft/controls.hxx>
 #include <Aircraft/replay.hxx>
-#include <Airports/apt_loader.hxx>
 #include <Airports/runways.hxx>
 #include <Airports/simple.hxx>
 #include <Airports/dynamics.hxx>
@@ -81,6 +73,7 @@
 #include <Cockpit/panel_io.hxx>
 
 #include <Canvas/canvas_mgr.hxx>
+#include <Canvas/gui_mgr.hxx>
 #include <GUI/new_gui.hxx>
 #include <Input/input.hxx>
 #include <Instrumentation/instrument_mgr.hxx>
@@ -90,13 +83,11 @@
 #include <AIModel/AIManager.hxx>
 #include <Navaids/navdb.hxx>
 #include <Navaids/navlist.hxx>
-#include <Navaids/fix.hxx>
-#include <Navaids/fixlist.hxx>
-#include <Navaids/airways.hxx>
 #include <Scenery/scenery.hxx>
 #include <Scenery/tilemgr.hxx>
 #include <Scripting/NasalSys.hxx>
 #include <Sound/voice.hxx>
+#include <Sound/soundmanager.hxx>
 #include <Systems/system_mgr.hxx>
 #include <Time/light.hxx>
 #include <Traffic/TrafficMgr.hxx>
@@ -106,6 +97,9 @@
 #include <Environment/environment_mgr.hxx>
 #include <Viewer/renderer.hxx>
 #include <Viewer/viewmgr.hxx>
+#include <Navaids/NavDataCache.hxx>
+#include <Instrumentation/HUD/HUD.hxx>
+#include <Cockpit/cockpitDisplayManager.hxx>
 
 #include "fg_init.hxx"
 #include "fg_io.hxx"
@@ -115,7 +109,7 @@
 #include "globals.hxx"
 #include "logger.hxx"
 #include "main.hxx"
-
+#include "positioninit.hxx"
 
 using std::string;
 using namespace boost::algorithm;
@@ -405,6 +399,8 @@ bool fgInitConfig ( int argc, char **argv )
     const char *fg_home = getenv("FG_HOME");
     if (fg_home)
       dataPath = fg_home;
+      
+    globals->set_fg_home(dataPath.c_str());
     
     simgear::Dir exportDir(simgear::Dir(dataPath).file("Export"));
     if (!exportDir.exists()) {
@@ -419,17 +415,30 @@ bool fgInitConfig ( int argc, char **argv )
     home->setStringValue(dataPath.c_str());
     home->setAttribute(SGPropertyNode::WRITE, false);
   
-    flightgear::Options::sharedInstance()->init(argc, argv, dataPath);
+    flightgear::Options* options = flightgear::Options::sharedInstance();
+    options->init(argc, argv, dataPath);
+    bool loadDefaults = flightgear::Options::sharedInstance()->shouldLoadDefaultConfig();
+    if (loadDefaults) {
+      // Read global preferences from $FG_ROOT/preferences.xml
+      SG_LOG(SG_INPUT, SG_INFO, "Reading global preferences");
+      fgLoadProps("preferences.xml", globals->get_props());
+      SG_LOG(SG_INPUT, SG_INFO, "Finished Reading global preferences");
+
+      // do not load user settings when reset to default is requested
+      if (flightgear::Options::sharedInstance()->isOptionSet("restore-defaults"))
+      {
+          SG_LOG(SG_ALL, SG_ALERT, "Ignoring user settings. Restoring defaults.");
+      }
+      else
+      {
+          globals->loadUserSettings(dataPath);
+      }
+    } else {
+      SG_LOG(SG_GENERAL, SG_INFO, "not reading default configuration files");
+    }// of no-default-config selected
   
-    // Read global preferences from $FG_ROOT/preferences.xml
-    SG_LOG(SG_INPUT, SG_INFO, "Reading global preferences");
-    fgLoadProps("preferences.xml", globals->get_props());
-    SG_LOG(SG_INPUT, SG_INFO, "Finished Reading global preferences");
-
-    globals->loadUserSettings(dataPath);
-
     // Scan user config files and command line for a specified aircraft.
-    flightgear::Options::sharedInstance()->initAircraft();
+    options->initAircraft();
 
     FindAndCacheAircraft f(globals->get_props());
     if (!f.loadAircraft()) {
@@ -438,570 +447,45 @@ bool fgInitConfig ( int argc, char **argv )
 
     // parse options after loading aircraft to ensure any user
     // overrides of defaults are honored.
-    flightgear::Options::sharedInstance()->processOptions();
+    options->processOptions();
       
     return true;
 }
 
-// Set current tower position lon/lat given an airport id
-static bool fgSetTowerPosFromAirportID( const string& id) {
-    const FGAirport *a = fgFindAirportID( id);
-    if (a) {
-        SGGeod tower = a->getTowerLocation();
-        fgSetDouble("/sim/tower/longitude-deg",  tower.getLongitudeDeg());
-        fgSetDouble("/sim/tower/latitude-deg",  tower.getLatitudeDeg());
-        fgSetDouble("/sim/tower/altitude-ft", tower.getElevationFt());
-        return true;
-    } else {
-        return false;
-    }
-
-}
-
-struct FGTowerLocationListener : SGPropertyChangeListener {
-    void valueChanged(SGPropertyNode* node) {
-        string id(node->getStringValue());
-        if (fgGetBool("/sim/tower/auto-position",true))
-        {
-            // enforce using closest airport when auto-positioning is enabled 
-            const char* closest_airport = fgGetString("/sim/airport/closest-airport-id", "");
-            if (closest_airport && (id != closest_airport))
-            {
-                id = closest_airport;
-                node->setStringValue(id);
-            }
-        }
-        fgSetTowerPosFromAirportID(id);
-    }
-};
-
-struct FGClosestTowerLocationListener : SGPropertyChangeListener
-{
-    void valueChanged(SGPropertyNode* )
-    {
-        // closest airport has changed
-        if (fgGetBool("/sim/tower/auto-position",true))
-        {
-            // update tower position
-            const char* id = fgGetString("/sim/airport/closest-airport-id", "");
-            if (id && *id!=0)
-                fgSetString("/sim/tower/airport-id", id);
-        }
-    }
-};
-
-void fgInitTowerLocationListener() {
-    fgGetNode("/sim/tower/airport-id",  true)
-        ->addChangeListener( new FGTowerLocationListener(), true );
-    FGClosestTowerLocationListener* ntcl = new FGClosestTowerLocationListener();
-    fgGetNode("/sim/airport/closest-airport-id", true)
-        ->addChangeListener(ntcl , true );
-    fgGetNode("/sim/tower/auto-position", true)
-           ->addChangeListener(ntcl, true );
-}
-
-static void fgApplyStartOffset(const SGGeod& aStartPos, double aHeading, double aTargetHeading = HUGE_VAL)
-{
-  SGGeod startPos(aStartPos);
-  if (aTargetHeading == HUGE_VAL) {
-    aTargetHeading = aHeading;
-  }
-  
-  if ( fabs( fgGetDouble("/sim/presets/offset-distance-nm") ) > SG_EPSILON ) {
-    double offsetDistance = fgGetDouble("/sim/presets/offset-distance-nm");
-    offsetDistance *= SG_NM_TO_METER;
-    double offsetAzimuth = aHeading;
-    if ( fabs(fgGetDouble("/sim/presets/offset-azimuth-deg")) > SG_EPSILON ) {
-      offsetAzimuth = fgGetDouble("/sim/presets/offset-azimuth-deg");
-      aHeading = aTargetHeading;
-    }
-
-    SGGeod offset;
-    double az2; // dummy
-    SGGeodesy::direct(startPos, offsetAzimuth + 180, offsetDistance, offset, az2);
-    startPos = offset;
-  }
-
-  // presets
-  fgSetDouble("/sim/presets/longitude-deg", startPos.getLongitudeDeg() );
-  fgSetDouble("/sim/presets/latitude-deg", startPos.getLatitudeDeg() );
-  fgSetDouble("/sim/presets/heading-deg", aHeading );
-
-  // other code depends on the actual values being set ...
-  fgSetDouble("/position/longitude-deg",  startPos.getLongitudeDeg() );
-  fgSetDouble("/position/latitude-deg",  startPos.getLatitudeDeg() );
-  fgSetDouble("/orientation/heading-deg", aHeading );
-}
-
-// Set current_options lon/lat given an airport id and heading (degrees)
-bool fgSetPosFromAirportIDandHdg( const string& id, double tgt_hdg ) {
-    if ( id.empty() )
-        return false;
-
-    // set initial position from runway and heading
-    SG_LOG( SG_GENERAL, SG_INFO,
-            "Attempting to set starting position from airport code "
-            << id << " heading " << tgt_hdg );
-
-    const FGAirport* apt = fgFindAirportID(id);
-    if (!apt) return false;
-    FGRunway* r = apt->findBestRunwayForHeading(tgt_hdg);
-    fgSetString("/sim/atc/runway", r->ident().c_str());
-
-    SGGeod startPos = r->pointOnCenterline(fgGetDouble("/sim/airport/runways/start-offset-m", 5.0));
-	  fgApplyStartOffset(startPos, r->headingDeg(), tgt_hdg);
-    return true;
-}
-
-// Set current_options lon/lat given an airport id and parkig position name
-static bool fgSetPosFromAirportIDandParkpos( const string& id, const string& parkpos ) {
-    if ( id.empty() )
-        return false;
-
-    // can't see an easy way around this const_cast at the moment
-    FGAirport* apt = const_cast<FGAirport*>(fgFindAirportID(id));
-    if (!apt) {
-        SG_LOG( SG_GENERAL, SG_ALERT, "Failed to find airport " << id );
-        return false;
-    }
-    FGAirportDynamics* dcs = apt->getDynamics();
-    if (!dcs) {
-        SG_LOG( SG_GENERAL, SG_ALERT,
-                "Airport " << id << "does not appear to have parking information available");
-        return false;
-    }
-    
-    int park_index = dcs->getNrOfParkings() - 1;
-    bool succes;
-    double radius = fgGetDouble("/sim/dimensions/radius-m");
-    if ((parkpos == string("AVAILABLE")) && (radius > 0)) {
-        double lat, lon, heading;
-        string fltType;
-        string acOperator;
-        SGPath acData;
-        try {
-            acData = fgGetString("/sim/fg-home");
-            acData.append("aircraft-data");
-            string acfile = fgGetString("/sim/aircraft") + string(".xml");
-            acData.append(acfile);
-            SGPropertyNode root;
-            readProperties(acData.str(), &root);
-            SGPropertyNode * node = root.getNode("sim");
-            fltType    = node->getStringValue("aircraft-class", "NONE"     );
-            acOperator = node->getStringValue("aircraft-operator", "NONE"     );
-        } catch (const sg_exception &) {
-            SG_LOG(SG_GENERAL, SG_INFO,
-                "Could not load aircraft aircrat type and operator information from: " << acData.str() << ". Using defaults");
-
-       // cout << path.str() << endl;
-        }
-        if (fltType.empty() || fltType == "NONE") {
-            SG_LOG(SG_GENERAL, SG_INFO,
-                "Aircraft type information not found in: " << acData.str() << ". Using default value");
-                fltType = fgGetString("/sim/aircraft-class"   );
-        }
-        if (acOperator.empty() || fltType == "NONE") {
-            SG_LOG(SG_GENERAL, SG_INFO,
-                "Aircraft operator information not found in: " << acData.str() << ". Using default value");
-                acOperator = fgGetString("/sim/aircraft-operator"   );
-        }
-
-        cerr << "Running aircraft " << fltType << " of livery " << acOperator << endl;
-        string acType; // Currently not used by findAvailable parking, so safe to leave empty. 
-        succes = dcs->getAvailableParking(&lat, &lon, &heading, &park_index, radius, fltType, acType, acOperator);
-        if (succes) {
-            fgGetString("/sim/presets/parkpos");
-            fgSetString("/sim/presets/parkpos", dcs->getParking(park_index)->getName());
-        } else {
-            SG_LOG( SG_GENERAL, SG_ALERT,
-                    "Failed to find a suitable parking at airport " << id );
-            return false;
-        }
-    } else {
-        //cerr << "We shouldn't get here when AVAILABLE" << endl;
-        while (park_index >= 0 && dcs->getParkingName(park_index) != parkpos) park_index--;
-        if (park_index < 0) {
-            SG_LOG( SG_GENERAL, SG_ALERT,
-                    "Failed to find parking position " << parkpos <<
-                    " at airport " << id );
-            return false;
-        }
-    }
-    FGParking* parking = dcs->getParking(park_index);
-    parking->setAvailable(false);
-    fgApplyStartOffset(
-      SGGeod::fromDeg(parking->getLongitude(), parking->getLatitude()),
-      parking->getHeading());
-    return true;
-}
-
-
-// Set current_options lon/lat given an airport id and runway number
-static bool fgSetPosFromAirportIDandRwy( const string& id, const string& rwy, bool rwy_req ) {
-    if ( id.empty() )
-        return false;
-
-    // set initial position from airport and runway number
-    SG_LOG( SG_GENERAL, SG_INFO,
-            "Attempting to set starting position for "
-            << id << ":" << rwy );
-
-    const FGAirport* apt = fgFindAirportID(id);
-    if (!apt) {
-      SG_LOG( SG_GENERAL, SG_ALERT, "Failed to find airport:" << id);
-      return false;
-    }
-    
-    if (!apt->hasRunwayWithIdent(rwy)) {
-      SG_LOG( SG_GENERAL, rwy_req ? SG_ALERT : SG_INFO,
-                "Failed to find runway " << rwy <<
-                " at airport " << id << ". Using default runway." );
-      return false;
-    }
-    
-    FGRunway* r(apt->getRunwayByIdent(rwy));
-    fgSetString("/sim/atc/runway", r->ident().c_str());
-    SGGeod startPos = r->pointOnCenterline( fgGetDouble("/sim/airport/runways/start-offset-m", 5.0));
-	  fgApplyStartOffset(startPos, r->headingDeg());
-    return true;
-}
-
-
-static void fgSetDistOrAltFromGlideSlope() {
-    // cout << "fgSetDistOrAltFromGlideSlope()" << endl;
-    string apt_id = fgGetString("/sim/presets/airport-id");
-    double gs = fgGetDouble("/sim/presets/glideslope-deg")
-        * SG_DEGREES_TO_RADIANS ;
-    double od = fgGetDouble("/sim/presets/offset-distance-nm");
-    double alt = fgGetDouble("/sim/presets/altitude-ft");
-
-    double apt_elev = 0.0;
-    if ( ! apt_id.empty() ) {
-        apt_elev = fgGetAirportElev( apt_id );
-        if ( apt_elev < -9990.0 ) {
-            apt_elev = 0.0;
-        }
-    } else {
-        apt_elev = 0.0;
-    }
-
-    if( fabs(gs) > 0.01 && fabs(od) > 0.1 && alt < -9990 ) {
-        // set altitude from glideslope and offset-distance
-        od *= SG_NM_TO_METER * SG_METER_TO_FEET;
-        alt = fabs(od*tan(gs)) + apt_elev;
-        fgSetDouble("/sim/presets/altitude-ft", alt);
-        fgSetBool("/sim/presets/onground", false);
-        SG_LOG( SG_GENERAL, SG_INFO, "Calculated altitude as: "
-                << alt  << " ft" );
-    } else if( fabs(gs) > 0.01 && alt > 0 && fabs(od) < 0.1) {
-        // set offset-distance from glideslope and altitude
-        od  = (alt - apt_elev) / tan(gs);
-        od *= -1*SG_FEET_TO_METER * SG_METER_TO_NM;
-        fgSetDouble("/sim/presets/offset-distance-nm", od);
-        fgSetBool("/sim/presets/onground", false);
-        SG_LOG( SG_GENERAL, SG_INFO, "Calculated offset distance as: " 
-                << od  << " nm" );
-    } else if( fabs(gs) > 0.01 ) {
-        SG_LOG( SG_GENERAL, SG_ALERT,
-                "Glideslope given but not altitude or offset-distance." );
-        SG_LOG( SG_GENERAL, SG_ALERT, "Resetting glideslope to zero" );
-        fgSetDouble("/sim/presets/glideslope-deg", 0);
-        fgSetBool("/sim/presets/onground", true);
-    }
-}
-
-
-// Set current_options lon/lat given an airport id and heading (degrees)
-static bool fgSetPosFromNAV( const string& id, const double& freq, FGPositioned::Type type ) {
-
-    const nav_list_type navlist
-        = globals->get_navlist()->findByIdentAndFreq( id.c_str(), freq, type );
-
-    if (navlist.size() == 0 ) {
-        SG_LOG( SG_GENERAL, SG_ALERT, "Failed to locate NAV = "
-            << id << ":" << freq );
-        return false;
-    }
-
-    if( navlist.size() > 1 ) {
-        ostringstream buf;
-        buf << "Ambigous NAV-ID: '" << id << "'. Specify id and frequency. Available stations:" << endl;
-        for( nav_list_type::const_iterator it = navlist.begin(); it != navlist.end(); ++it ) {
-            // NDB stored in kHz, VOR stored in MHz * 100 :-P
-            double factor = (*it)->type() == FGPositioned::NDB ? 1.0 : 1/100.0;
-            string unit = (*it)->type() == FGPositioned::NDB ? "kHz" : "MHz";
-            buf << (*it)->ident() << " "
-                << setprecision(5) << (double)((*it)->get_freq() * factor) << " "
-                << (*it)->get_lat() << "/" << (*it)->get_lon()
-                << endl;
-        }
-
-        SG_LOG( SG_GENERAL, SG_ALERT, buf.str() );
-        return false;
-    }
-
-    FGNavRecord *nav = navlist[0];
-    fgApplyStartOffset(nav->geod(), fgGetDouble("/sim/presets/heading-deg"));
-    return true;
-}
-
-// Set current_options lon/lat given an aircraft carrier id
-static bool fgSetPosFromCarrier( const string& carrier, const string& posid ) {
-
-    // set initial position from runway and heading
-    SGGeod geodPos;
-    double heading;
-    SGVec3d uvw;
-    if (FGAIManager::getStartPosition(carrier, posid, geodPos, heading, uvw)) {
-        double lon = geodPos.getLongitudeDeg();
-        double lat = geodPos.getLatitudeDeg();
-        double alt = geodPos.getElevationFt();
-
-        SG_LOG( SG_GENERAL, SG_INFO, "Attempting to set starting position for "
-                << carrier << " at lat = " << lat << ", lon = " << lon
-                << ", alt = " << alt << ", heading = " << heading);
-
-        fgSetDouble("/sim/presets/longitude-deg",  lon);
-        fgSetDouble("/sim/presets/latitude-deg",  lat);
-        fgSetDouble("/sim/presets/altitude-ft", alt);
-        fgSetDouble("/sim/presets/heading-deg", heading);
-        fgSetDouble("/position/longitude-deg",  lon);
-        fgSetDouble("/position/latitude-deg",  lat);
-        fgSetDouble("/position/altitude-ft", alt);
-        fgSetDouble("/orientation/heading-deg", heading);
-
-        fgSetString("/sim/presets/speed-set", "UVW");
-        fgSetDouble("/velocities/uBody-fps", uvw(0));
-        fgSetDouble("/velocities/vBody-fps", uvw(1));
-        fgSetDouble("/velocities/wBody-fps", uvw(2));
-        fgSetDouble("/sim/presets/uBody-fps", uvw(0));
-        fgSetDouble("/sim/presets/vBody-fps", uvw(1));
-        fgSetDouble("/sim/presets/wBody-fps", uvw(2));
-
-        fgSetBool("/sim/presets/onground", true);
 
-        return true;
-    } else {
-        SG_LOG( SG_GENERAL, SG_ALERT, "Failed to locate aircraft carrier = "
-                << carrier );
-        return false;
-    }
-}
- 
-// Set current_options lon/lat given an airport id and heading (degrees)
-static bool fgSetPosFromFix( const string& id )
-{
-  FGPositioned::TypeFilter fixFilter(FGPositioned::FIX);
-  FGPositioned* fix = FGPositioned::findNextWithPartialId(NULL, id, &fixFilter);
-  if (!fix) {
-    SG_LOG( SG_GENERAL, SG_ALERT, "Failed to locate fix = " << id );
-    return false;
-  }
-  
-  fgApplyStartOffset(fix->geod(), fgGetDouble("/sim/presets/heading-deg"));
-  return true;
-}
 
 /**
  * Initialize vor/ndb/ils/fix list management and query systems (as
  * well as simple airport db list)
+ * This is called multiple times in the case of a cache rebuild,
+ * to allow length caching to take place in the background, without
+ * blocking the main/UI thread.
  */
 bool
 fgInitNav ()
 {
-    SG_LOG(SG_GENERAL, SG_INFO, "Loading Airport Database ...");
-
-    SGPath aptdb( globals->get_fg_root() );
-    aptdb.append( "Airports/apt.dat" );
-
-    SGPath p_metar( globals->get_fg_root() );
-    p_metar.append( "Airports/metar.dat" );
-
-    fgAirportDBLoad( aptdb.str(), p_metar.str() );
-    
-    FGNavList *navlist = new FGNavList;
-    FGNavList *loclist = new FGNavList;
-    FGNavList *gslist = new FGNavList;
-    FGNavList *dmelist = new FGNavList;
-    FGNavList *tacanlist = new FGNavList;
-    FGNavList *carrierlist = new FGNavList;
-    FGTACANList *channellist = new FGTACANList;
-
-    globals->set_navlist( navlist );
-    globals->set_loclist( loclist );
-    globals->set_gslist( gslist );
-    globals->set_dmelist( dmelist );
-    globals->set_tacanlist( tacanlist );
-    globals->set_carrierlist( carrierlist );
-    globals->set_channellist( channellist );
-
-    if ( !fgNavDBInit(navlist, loclist, gslist, dmelist, tacanlist, carrierlist, channellist) ) {
-        SG_LOG( SG_GENERAL, SG_ALERT,
-                "Problems loading one or more navigational database" );
-    }
-    
-    SG_LOG(SG_GENERAL, SG_INFO, "  Fixes");
-    SGPath p_fix( globals->get_fg_root() );
-    p_fix.append( "Navaids/fix.dat" );
-    FGFixList fixlist;
-    fixlist.init( p_fix );  // adds fixes to the DB in positioned.cxx
-
-    SG_LOG(SG_GENERAL, SG_INFO, "  Airways");
-    flightgear::Airway::load();
-    
-    return true;
-}
-
-
-// Set the initial position based on presets (or defaults)
-bool fgInitPosition() {
-    // cout << "fgInitPosition()" << endl;
-    double gs = fgGetDouble("/sim/presets/glideslope-deg")
-        * SG_DEGREES_TO_RADIANS ;
-    double od = fgGetDouble("/sim/presets/offset-distance-nm");
-    double alt = fgGetDouble("/sim/presets/altitude-ft");
-
-    bool set_pos = false;
-
-    // If glideslope is specified, then calculate offset-distance or
-    // altitude relative to glide slope if either of those was not
-    // specified.
-    if ( fabs( gs ) > 0.01 ) {
-        fgSetDistOrAltFromGlideSlope();
-    }
-
-
-    // If we have an explicit, in-range lon/lat, don't change it, just use it.
-    // If not, check for an airport-id and use that.
-    // If not, default to the middle of the KSFO field.
-    // The default values for lon/lat are deliberately out of range
-    // so that the airport-id can take effect; valid lon/lat will
-    // override airport-id, however.
-    double lon_deg = fgGetDouble("/sim/presets/longitude-deg");
-    double lat_deg = fgGetDouble("/sim/presets/latitude-deg");
-    if ( lon_deg >= -180.0 && lon_deg <= 180.0
-         && lat_deg >= -90.0 && lat_deg <= 90.0 )
-    {
-        set_pos = true;
-    }
-
-    string apt = fgGetString("/sim/presets/airport-id");
-    string rwy_no = fgGetString("/sim/presets/runway");
-    bool rwy_req = fgGetBool("/sim/presets/runway-requested");
-    string vor = fgGetString("/sim/presets/vor-id");
-    double vor_freq = fgGetDouble("/sim/presets/vor-freq");
-    string ndb = fgGetString("/sim/presets/ndb-id");
-    double ndb_freq = fgGetDouble("/sim/presets/ndb-freq");
-    string carrier = fgGetString("/sim/presets/carrier");
-    string parkpos = fgGetString("/sim/presets/parkpos");
-    string fix = fgGetString("/sim/presets/fix");
-    SGPropertyNode *hdg_preset = fgGetNode("/sim/presets/heading-deg", true);
-    double hdg = hdg_preset->getDoubleValue();
-
-    // save some start parameters, so that we can later say what the
-    // user really requested. TODO generalize that and move it to options.cxx
-    static bool start_options_saved = false;
-    if (!start_options_saved) {
-        start_options_saved = true;
-        SGPropertyNode *opt = fgGetNode("/sim/startup/options", true);
-
-        opt->setDoubleValue("latitude-deg", lat_deg);
-        opt->setDoubleValue("longitude-deg", lon_deg);
-        opt->setDoubleValue("heading-deg", hdg);
-        opt->setStringValue("airport", apt.c_str());
-        opt->setStringValue("runway", rwy_no.c_str());
-    }
-
-    if (hdg > 9990.0)
-        hdg = fgGetDouble("/environment/config/boundary/entry/wind-from-heading-deg", 270);
-
-    if ( !set_pos && !apt.empty() && !parkpos.empty() ) {
-        // An airport + parking position is requested
-        if ( fgSetPosFromAirportIDandParkpos( apt, parkpos ) ) {
-            // set tower position
-            fgSetString("/sim/airport/closest-airport-id",  apt.c_str());
-            fgSetString("/sim/tower/airport-id",  apt.c_str());
-            set_pos = true;
-        }
-    }
-
-    if ( !set_pos && !apt.empty() && !rwy_no.empty() ) {
-        // An airport + runway is requested
-        if ( fgSetPosFromAirportIDandRwy( apt, rwy_no, rwy_req ) ) {
-            // set tower position (a little off the heading for single
-            // runway airports)
-            fgSetString("/sim/airport/closest-airport-id",  apt.c_str());
-            fgSetString("/sim/tower/airport-id",  apt.c_str());
-            set_pos = true;
-        }
-    }
-
-    if ( !set_pos && !apt.empty() ) {
-        // An airport is requested (find runway closest to hdg)
-        if ( fgSetPosFromAirportIDandHdg( apt, hdg ) ) {
-            // set tower position (a little off the heading for single
-            // runway airports)
-            fgSetString("/sim/airport/closest-airport-id",  apt.c_str());
-            fgSetString("/sim/tower/airport-id",  apt.c_str());
-            set_pos = true;
-        }
-    }
-
-    if (hdg_preset->getDoubleValue() > 9990.0)
-        hdg_preset->setDoubleValue(hdg);
-
-    if ( !set_pos && !vor.empty() ) {
-        // a VOR is requested
-        if ( fgSetPosFromNAV( vor, vor_freq, FGPositioned::VOR ) ) {
-            set_pos = true;
-        }
-    }
-
-    if ( !set_pos && !ndb.empty() ) {
-        // an NDB is requested
-        if ( fgSetPosFromNAV( ndb, ndb_freq, FGPositioned::NDB ) ) {
-            set_pos = true;
-        }
-    }
-
-    if ( !set_pos && !carrier.empty() ) {
-        // an aircraft carrier is requested
-        if ( fgSetPosFromCarrier( carrier, parkpos ) ) {
-            set_pos = true;
-        }
-    }
-
-    if ( !set_pos && !fix.empty() ) {
-        // a Fix is requested
-        if ( fgSetPosFromFix( fix ) ) {
-            set_pos = true;
-        }
-    }
-
-    if ( !set_pos ) {
-        // No lon/lat specified, no airport specified, default to
-        // middle of KSFO field.
-        fgSetDouble("/sim/presets/longitude-deg", -122.374843);
-        fgSetDouble("/sim/presets/latitude-deg", 37.619002);
-    }
-
-    fgSetDouble( "/position/longitude-deg",
-                 fgGetDouble("/sim/presets/longitude-deg") );
-    fgSetDouble( "/position/latitude-deg",
-                 fgGetDouble("/sim/presets/latitude-deg") );
-    fgSetDouble( "/orientation/heading-deg", hdg_preset->getDoubleValue());
-
-    // determine if this should be an on-ground or in-air start
-    if ((fabs(gs) > 0.01 || fabs(od) > 0.1 || alt > 0.1) && carrier.empty()) {
-        fgSetBool("/sim/presets/onground", false);
-    } else {
-        fgSetBool("/sim/presets/onground", true);
+  flightgear::NavDataCache* cache = flightgear::NavDataCache::instance();
+  static bool doingRebuild = false;
+  if (doingRebuild || cache->isRebuildRequired()) {
+    doingRebuild = true;
+    bool finished = cache->rebuild();
+    if (!finished) {
+      // sleep to give the rebuild thread more time
+      SGTimeStamp::sleepForMSec(50);
+      return false;
     }
-
-    return true;
+  }
+  
+  FGTACANList *channellist = new FGTACANList;
+  globals->set_channellist( channellist );
+  
+  SGPath path(globals->get_fg_root());
+  path.append( "Navaids/TACAN_freq.dat" );
+  flightgear::loadTacan(path, channellist);
+  
+  return true;
 }
 
-
 // General house keeping initializations
 bool fgInitGeneral() {
     string root;
@@ -1019,7 +503,9 @@ bool fgInitGeneral() {
     }
     SG_LOG( SG_GENERAL, SG_INFO, "FG_ROOT = " << '"' << root << '"' << endl );
 
-    globals->set_browser(fgGetString("/sim/startup/browser-app", "firefox %u"));
+    // Note: browser command is hard-coded for Mac/Windows, so this only affects other platforms
+    globals->set_browser(fgGetString("/sim/startup/browser-app", WEB_BROWSER));
+    fgSetString("/sim/startup/browser-app", globals->get_browser());
 
     simgear::Dir cwd(simgear::Dir::current());
     SGPropertyNode *curr = fgGetNode("/sim", true);
@@ -1037,9 +523,9 @@ bool fgInitGeneral() {
 // initialization routines.  If you are adding a subsystem to flight
 // gear, its initialization call should located in this routine.
 // Returns non-zero if a problem encountered.
-bool fgInitSubsystems() {
+void fgCreateSubsystems() {
 
-    SG_LOG( SG_GENERAL, SG_INFO, "Initialize Subsystems");
+    SG_LOG( SG_GENERAL, SG_INFO, "Creating Subsystems");
     SG_LOG( SG_GENERAL, SG_INFO, "========== ==========");
 
     ////////////////////////////////////////////////////////////////////
@@ -1049,7 +535,7 @@ bool fgInitSubsystems() {
     // to be updated in every loop.
     // Sound manager is updated last so it can use the CPU while the GPU
     // is processing the scenery (doubled the frame-rate for me) -EMH-
-    globals->add_subsystem("sound", new SGSoundMgr, SGSubsystemMgr::SOUND);
+    globals->add_subsystem("sound", new FGSoundManager, SGSubsystemMgr::SOUND);
 
     ////////////////////////////////////////////////////////////////////
     // Initialize the event manager subsystem.
@@ -1119,9 +605,11 @@ bool fgInitSubsystems() {
     // autopilot.)
     ////////////////////////////////////////////////////////////////////
 
-    globals->add_subsystem("instrumentation", new FGInstrumentMgr, SGSubsystemMgr::FDM);
     globals->add_subsystem("systems", new FGSystemMgr, SGSubsystemMgr::FDM);
-
+    globals->add_subsystem("instrumentation", new FGInstrumentMgr, SGSubsystemMgr::FDM);
+    globals->add_subsystem("hud", new HUD, SGSubsystemMgr::DISPLAY);
+    globals->add_subsystem("cockpit-displays", new flightgear::CockpitDisplayManager, SGSubsystemMgr::DISPLAY);
+  
     ////////////////////////////////////////////////////////////////////
     // Initialize the XML Autopilot subsystem.
     ////////////////////////////////////////////////////////////////////
@@ -1155,7 +643,8 @@ bool fgInitSubsystems() {
     ////////////////////////////////////////////////////////////////////
     // Initialize the canvas 2d drawing subsystem.
     ////////////////////////////////////////////////////////////////////
-    globals->add_subsystem("Canvas2D", new CanvasMgr, SGSubsystemMgr::DISPLAY);
+    globals->add_subsystem("Canvas", new CanvasMgr, SGSubsystemMgr::DISPLAY);
+    globals->add_subsystem("CanvasGUI", new GUIMgr, SGSubsystemMgr::DISPLAY);
 
     ////////////////////////////////////////////////////////////////////
     // Initialise the ATIS Manager
@@ -1203,16 +692,14 @@ bool fgInitSubsystems() {
     ////////////////////////////////////////////////////////////////////
     // Initialize the controls subsystem.
     ////////////////////////////////////////////////////////////////////
-
-    globals->get_controls()->init();
-    globals->get_controls()->bind();
-
+    
+    globals->add_subsystem("controls", new FGControls, SGSubsystemMgr::GENERAL);
 
     ////////////////////////////////////////////////////////////////////
     // Initialize the input subsystem.
     ////////////////////////////////////////////////////////////////////
 
-    globals->add_subsystem("input", new FGInput);
+    globals->add_subsystem("input", new FGInput, SGSubsystemMgr::GENERAL);
 
 
     ////////////////////////////////////////////////////////////////////
@@ -1235,14 +722,9 @@ bool fgInitSubsystems() {
     
     // ordering here is important : Nasal (via events), then models, then views
     globals->add_subsystem("events", globals->get_event_mgr(), SGSubsystemMgr::DISPLAY);
-    
-    FGAircraftModel* acm = new FGAircraftModel;
-    globals->set_aircraft_model(acm);
-    globals->add_subsystem("aircraft-model", acm, SGSubsystemMgr::DISPLAY);
 
-    FGModelMgr* mm = new FGModelMgr;
-    globals->set_model_mgr(mm);
-    globals->add_subsystem("model-manager", mm, SGSubsystemMgr::DISPLAY);
+    globals->add_subsystem("aircraft-model", new FGAircraftModel, SGSubsystemMgr::DISPLAY);
+    globals->add_subsystem("model-manager", new FGModelMgr, SGSubsystemMgr::DISPLAY);
 
     FGViewMgr *viewmgr = new FGViewMgr;
     globals->set_viewmgr( viewmgr );
@@ -1250,14 +732,13 @@ bool fgInitSubsystems() {
 
     globals->add_subsystem("tile-manager", globals->get_tile_mgr(), 
       SGSubsystemMgr::DISPLAY);
-      
-    ////////////////////////////////////////////////////////////////////
-    // Bind and initialize subsystems.
-    ////////////////////////////////////////////////////////////////////
-
-    globals->get_subsystem_mgr()->bind();
-    globals->get_subsystem_mgr()->init();
+}
 
+void fgPostInitSubsystems()
+{
+    SGTimeStamp st;
+    st.stamp();
+  
     ////////////////////////////////////////////////////////////////////////
     // Initialize the Nasal interpreter.
     // Do this last, so that the loaded scripts see initialized state
@@ -1265,9 +746,35 @@ bool fgInitSubsystems() {
     FGNasalSys* nasal = new FGNasalSys();
     globals->add_subsystem("nasal", nasal, SGSubsystemMgr::INIT);
     nasal->init();
-
+    SG_LOG(SG_GENERAL, SG_INFO, "Nasal init took:" << st.elapsedMSec());
+  
     // initialize methods that depend on other subsystems.
+    st.stamp();
     globals->get_subsystem_mgr()->postinit();
+    SG_LOG(SG_GENERAL, SG_INFO, "Subsystems postinit took:" << st.elapsedMSec());
+  
+    ////////////////////////////////////////////////////////////////////
+    // TODO FIXME! UGLY KLUDGE!
+    ////////////////////////////////////////////////////////////////////
+    {
+        /* Scenarios require Nasal, so FGAIManager loads the scenarios,
+         * including its models such as a/c carriers, in its 'postinit',
+         * which is the very last thing we do.
+         * flightgear::initPosition is called very early in main.cxx/fgIdleFunction,
+         * one of the first things we do, long before scenarios/carriers are
+         * loaded. => When requested "initial preset position" relates to a
+         * carrier, recalculate the 'initial' position here (how have things
+         * ever worked before this hack - this init sequence has always been
+         * this way...?)*/
+        std::string carrier = fgGetString("/sim/presets/carrier","");
+        if (carrier != "")
+        {
+            // clear preset location and re-trigger position setup
+            fgSetDouble("/sim/presets/longitude-deg", 9999);
+            fgSetDouble("/sim/presets/latitude-deg", 9999);
+            flightgear::initPosition();
+        }
+    }
 
     ////////////////////////////////////////////////////////////////////////
     // End of subsystem initialization.
@@ -1281,8 +788,6 @@ bool fgInitSubsystems() {
                                 // Save the initial state for future
                                 // reference.
     globals->saveInitialState();
-    
-    return true;
 }
 
 // Reset: this is what the 'reset' command (and hence, GUI) is attached to
@@ -1312,7 +817,7 @@ void fgReInitSubsystems()
     globals->restoreInitialState();
 
     // update our position based on current presets
-    fgInitPosition();
+    flightgear::initPosition();
     
     // Force reupdating the positions of the ai 3d models. They are used for
     // initializing ground level for the FDM.
@@ -1332,6 +837,12 @@ void fgReInitSubsystems()
     // need to bind FDMshell again, since we manually unbound it above...
     globals->get_subsystem("flight")->bind();
 
+    // need to reset aircraft (systems/instruments) so they can adapt to current environment
+    globals->get_subsystem("systems")->reinit();
+    globals->get_subsystem("instrumentation")->reinit();
+
+    globals->get_subsystem("ATIS")->reinit();
+
 // setup state to end re-init
     fgSetBool("/sim/signals/reinit", false);
     if ( !freeze ) {