]> git.mxchange.org Git - flightgear.git/blobdiff - src/Main/fg_init.cxx
Moved random ground cover object management code (userdata.[ch]xx) over
[flightgear.git] / src / Main / fg_init.cxx
index e9f2e6dcf7e8316e58c509d3ded0a4671437c120..fb20adbb85ab96f50b6b5acd206a6a5435203507 100644 (file)
@@ -35,7 +35,7 @@
 #  include <windows.h>
 #endif
 
-#include <GL/glut.h>
+#include GLUT_H
 
 #include <stdio.h>
 #include <stdlib.h>
 #include <simgear/math/polar3d.hxx>
 #include <simgear/math/sg_geodesy.hxx>
 #include <simgear/misc/sg_path.hxx>
-#include <simgear/sky/clouds3d/SkySceneLoader.hpp>
-#include <simgear/sky/clouds3d/SkyUtil.hpp>
+#include <simgear/scene/material/matlib.hxx>
+#ifdef FG_USE_CLOUDS_3D
+#  include <simgear/sky/clouds3d/SkySceneLoader.hpp>
+#  include <simgear/sky/clouds3d/SkyUtil.hpp>
+#endif
 #include <simgear/timing/sg_time.hxx>
 #include <simgear/timing/lowleveltime.h>
 
 #include <Airports/simple.hxx>
 #include <ATC/ATCdisplay.hxx>
 #include <ATC/ATCmgr.hxx>
-#include <ATC/atislist.hxx>
-#include <ATC/towerlist.hxx>
-#include <ATC/approachlist.hxx>
 #include <ATC/AIMgr.hxx>
 #include <Autopilot/auto_gui.hxx>
 #include <Autopilot/newauto.hxx>
 #include <Cockpit/cockpit.hxx>
 #include <Cockpit/radiostack.hxx>
-#include <Cockpit/steam.hxx>
 #include <Cockpit/panel.hxx>
 #include <Cockpit/panel_io.hxx>
 #include <FDM/ADA.hxx>
 #include <FDM/Balloon.h>
 #include <FDM/ExternalNet/ExternalNet.hxx>
+#include <FDM/ExternalPipe/ExternalPipe.hxx>
 #include <FDM/JSBSim/JSBSim.hxx>
-#include <FDM/LaRCsim.hxx>
+#include <FDM/LaRCsim/LaRCsim.hxx>
 #include <FDM/MagicCarpet.hxx>
 #include <FDM/UFO.hxx>
 #include <FDM/NullFDM.hxx>
@@ -98,8 +98,6 @@
 #include <Include/general.hxx>
 #include <Input/input.hxx>
 #include <Instrumentation/instrument_mgr.hxx>
-// #include <Joystick/joystick.hxx>
-#include <Objects/matlib.hxx>
 #include <Model/acmodel.hxx>
 #include <Navaids/fixlist.hxx>
 #include <Navaids/ilslist.hxx>
 #include <Navaids/navlist.hxx>
 #include <Scenery/scenery.hxx>
 #include <Scenery/tilemgr.hxx>
+#if defined(HAVE_PLIB_PSL)
+#include <Scripting/scriptmgr.hxx>
+#endif
 #include <Sound/fg_fx.hxx>
-#include <Sound/soundmgr.hxx>
 #include <Systems/system_mgr.hxx>
 #include <Time/FGEventMgr.hxx>
 #include <Time/light.hxx>
 #include <Time/moonpos.hxx>
 #include <Time/tmp.hxx>
 
+#ifdef FG_MPLAYER_AS
+#include <MultiPlayer/multiplaytxmgr.hxx>
+#include <MultiPlayer/multiplayrxmgr.hxx>
+#endif
+
 #ifdef FG_WEATHERCM
 #  include <WeatherCM/FGLocalWeatherDatabase.h>
 #else
 
 SG_USING_STD(string);
 
+
+class Sound;
+
 extern const char *default_root;
 
-SkySceneLoader *sgCloud3d;
+#ifdef FG_USE_CLOUDS_3D
+  SkySceneLoader *sgCloud3d;
+#endif
 
 
 // Scan the command line options for the specified option and return
@@ -449,8 +459,8 @@ bool fgDetectLanguage() {
 
     SGPropertyNode *locale = fgInitLocale(language);
     if (!locale) {
-       cerr << "No internationalization settings specified in preferences.xml"
-            << endl;
+       SG_LOG(SG_GENERAL, SG_ALERT,
+              "No internationalization settings specified in preferences.xml" );
 
        return false;
     }
@@ -576,6 +586,22 @@ bool fgFindAirportID( const string& id, FGAirport *a ) {
 }
 
 
+// get airport elevation
+static double fgGetAirportElev( const string& id ) {
+    FGAirport a;
+    // double lon, lat;
+
+    SG_LOG( SG_GENERAL, SG_INFO,
+            "Finding elevation for airport: " << id );
+
+    if ( fgFindAirportID( id, &a ) ) {
+        return a.elevation;
+    } else {
+        return -9999.0;
+    }
+}
+
+
 // Preset lon/lat given an airport id
 static bool fgSetPosFromAirportID( const string& id ) {
     FGAirport a;
@@ -602,11 +628,9 @@ static bool fgSetPosFromAirportID( const string& id ) {
     } else {
         return false;
     }
-
 }
 
 
-
 // Set current tower position lon/lat given an airport id
 static bool fgSetTowerPosFromAirportID( const string& id, double hdg ) {
     FGAirport a;
@@ -632,8 +656,6 @@ static bool fgSetTowerPosFromAirportID( const string& id, double hdg ) {
 // Set current_options lon/lat given an airport id and heading (degrees)
 static bool fgSetPosFromAirportIDandHdg( const string& id, double tgt_hdg ) {
     FGRunway r;
-    FGRunway found_r;
-    double found_dir = 0.0;
 
     if ( id.length() ) {
         // set initial position from runway and heading
@@ -644,72 +666,30 @@ static bool fgSetPosFromAirportIDandHdg( const string& id, double tgt_hdg ) {
         FGRunways runways( path.c_str() );
 
         SG_LOG( SG_GENERAL, SG_INFO,
-                "Attempting to set starting position from runway code "
+                "Attempting to set starting position from airport code "
                 << id << " heading " << tgt_hdg );
-
-        if ( ! runways.search( id, &r ) ) {
+               
+        if ( ! runways.search( id, (int)tgt_hdg, &r ) ) {
             SG_LOG( SG_GENERAL, SG_ALERT,
-                    "Failed to find " << id << " in database." );
+                    "Failed to find a good runway for " << id << '\n' );
             return false;
-        }
-
-        double diff;
-        double min_diff = 360.0;
-
-        while ( r.id == id ) {
-            // forward direction
-            diff = tgt_hdg - r.heading;
-            while ( diff < -180.0 ) { diff += 360.0; }
-            while ( diff >  180.0 ) { diff -= 360.0; }
-            diff = fabs(diff);
-            SG_LOG( SG_GENERAL, SG_INFO,
-                    "Runway " << r.rwy_no << " heading = " << r.heading <<
-                    " diff = " << diff );
-            if ( diff < min_diff ) {
-                min_diff = diff;
-                found_r = r;
-                found_dir = 0;
-            }
-
-            // reverse direction
-            diff = tgt_hdg - r.heading - 180.0;
-            while ( diff < -180.0 ) { diff += 360.0; }
-            while ( diff >  180.0 ) { diff -= 360.0; }
-            diff = fabs(diff);
-            SG_LOG( SG_GENERAL, SG_INFO,
-                    "Runway -" << r.rwy_no << " heading = " <<
-                    r.heading + 180.0 <<
-                    " diff = " << diff );
-            if ( diff < min_diff ) {
-                min_diff = diff;
-                found_r = r;
-                found_dir = 180.0;
-            }
-
-            runways.next( &r );
-        }
-
-        SG_LOG( SG_GENERAL, SG_INFO, "closest runway = " << found_r.rwy_no
-                << " + " << found_dir );
-
+        }      
     } else {
         return false;
     }
 
-    double heading = found_r.heading + found_dir;
-    while ( heading >= 360.0 ) { heading -= 360.0; }
-
     double lat2, lon2, az2;
-    double azimuth = found_r.heading + found_dir + 180.0;
+    double heading = r.heading;
+    double azimuth = heading + 180.0;
     while ( azimuth >= 360.0 ) { azimuth -= 360.0; }
 
     SG_LOG( SG_GENERAL, SG_INFO,
-            "runway =  " << found_r.lon << ", " << found_r.lat
-            << " length = " << found_r.length * SG_FEET_TO_METER * 0.5 
+            "runway =  " << r.lon << ", " << r.lat
+            << " length = " << r.length * SG_FEET_TO_METER 
             << " heading = " << azimuth );
-    
-    geo_direct_wgs_84 ( 0, found_r.lat, found_r.lon
-                        azimuth, found_r.length * SG_FEET_TO_METER * 0.5 - 5.0,
+           
+    geo_direct_wgs_84 ( 0, r.lat, r.lon, azimuth
+                        r.length * SG_FEET_TO_METER * 0.5 - 5.0,
                         &lat2, &lon2, &az2 );
 
     if ( fabs( fgGetDouble("/sim/presets/offset-distance") ) > SG_EPSILON ) {
@@ -741,30 +721,17 @@ static bool fgSetPosFromAirportIDandHdg( const string& id, double tgt_hdg ) {
             << lon2 << ", "
             << lat2 << ") new heading is "
             << heading );
-
+           
     return true;
 }
 
 
-// Set current_options lon/lat given an airport id and heading (degrees)
+// Set current_options lon/lat given an airport id and runway number
 static bool fgSetPosFromAirportIDandRwy( const string& id, const string& rwy ) {
     FGRunway r;
-    FGRunway found_r;
-    double heading = 0.0;
-    string runway;
-    bool match = false;
-
-    // standardize input number
-    string tmp = rwy.substr(1, 1);
-    if ( tmp == "L" || tmp == "R" || tmp == "C" ) {
-        runway = "0";
-        runway += rwy;
-    } else {
-        runway = rwy;
-    }
 
     if ( id.length() ) {
-        // set initial position from runway and heading
+        // set initial position from airport and runway number
 
         SGPath path( globals->get_fg_root() );
         path.append( "Airports" );
@@ -773,153 +740,240 @@ static bool fgSetPosFromAirportIDandRwy( const string& id, const string& rwy ) {
 
         SG_LOG( SG_GENERAL, SG_INFO,
                 "Attempting to set starting position for "
-                << id << ":" << runway );
+                << id << ":" << rwy );
 
-        if ( ! runways.search( id, &r ) ) {
+        if ( ! runways.search( id, rwy, &r ) ) {
             SG_LOG( SG_GENERAL, SG_ALERT,
-                    "Failed to find " << id << " in database." );
+                    "Failed to find runway " << rwy << 
+                    " at airport " << id );
             return false;
         }
+    } else {
+        return false;
+    }
 
-        while ( r.id == id ) {
-            // forward direction
-            if ( r.rwy_no == runway ) {
-                found_r = r;
-                heading = r.heading;
-                match = true;
-                SG_LOG( SG_GENERAL, SG_INFO,
-                        "Runway " << r.rwy_no << " heading = " << heading );
-            }
+    double lat2, lon2, az2;
+    double heading = r.heading;
+    double azimuth = heading + 180.0;
+    while ( azimuth >= 360.0 ) { azimuth -= 360.0; }
+    
+    SG_LOG( SG_GENERAL, SG_INFO,
+    "runway =  " << r.lon << ", " << r.lat
+    << " length = " << r.length * SG_FEET_TO_METER 
+    << " heading = " << azimuth );
+    
+    geo_direct_wgs_84 ( 0, r.lat, r.lon, 
+    azimuth,
+    r.length * SG_FEET_TO_METER * 0.5 - 5.0,
+    &lat2, &lon2, &az2 );
+    
+    if ( fabs( fgGetDouble("/sim/presets/offset-distance") ) > SG_EPSILON )
+    {
+       double olat, olon;
+       double odist = fgGetDouble("/sim/presets/offset-distance");
+       odist *= SG_NM_TO_METER;
+       double oaz = azimuth;
+       if ( fabs(fgGetDouble("/sim/presets/offset-azimuth")) > SG_EPSILON )
+       {
+           oaz = fgGetDouble("/sim/presets/offset-azimuth") + 180;
+       }
+       while ( oaz >= 360.0 ) { oaz -= 360.0; }
+       geo_direct_wgs_84 ( 0, lat2, lon2, oaz, odist, &olat, &olon, &az2 );
+       lat2=olat;
+       lon2=olon;
+    }
+    
+    // presets
+    fgSetDouble("/sim/presets/longitude-deg",  lon2 );
+    fgSetDouble("/sim/presets/latitude-deg",  lat2 );
+    fgSetDouble("/sim/presets/heading-deg", heading );
+    
+    // other code depends on the actual values being set ...
+    fgSetDouble("/position/longitude-deg",  lon2 );
+    fgSetDouble("/position/latitude-deg",  lat2 );
+    fgSetDouble("/orientation/heading-deg", heading );
+    
+    SG_LOG( SG_GENERAL, SG_INFO,
+    "Position for " << id << " is ("
+    << lon2 << ", "
+    << lat2 << ") new heading is "
+    << heading );
+    
+    return true;
+}
 
-            // calculate reciprocal runway number
-            string snum = r.rwy_no;
-            int len = snum.length();
-            string letter = "";
-            string rev_letter = "";
-            int i;
-            for ( i = 0; i < len; ++i ) {
-                string tmp = snum.substr(i, 1);
-                if ( tmp == "L" ) {
-                    letter = "L";
-                    rev_letter = "R";
-                } else if ( tmp == "R" ) {
-                    letter = "R";
-                    rev_letter = "L";
-                } else if ( tmp == "C" ) {
-                    letter == "C";
-                    rev_letter = "C";
-                }
-            }
-            for ( i = 0; i < len; ++i ) {
-                string tmp = snum.substr(i, 1);
-                if ( tmp == "L" || tmp == "R" || tmp == "C" || tmp == " " ) {
-                    snum = snum.substr(0, i);
-                }
-            }
-            SG_LOG(SG_GENERAL, SG_DEBUG, "Runway num = '" << snum << "'");
-            int num = atoi( snum.c_str() ) + 18;
-            while ( num > 36 ) { num -= 36; }
-            while ( num <= 0 ) { num += 36; }
-
-            char recip_no[10];
-            snprintf( recip_no, 10, "%02d%s", num, rev_letter.c_str() );
-
-            // reverse direction
-            if ( (string)recip_no == runway ) {
-                found_r = r;
-                heading = r.heading + 180;
-                while ( heading > 360.0 ) { heading -= 360; }
-                match = true;
-                SG_LOG( SG_GENERAL, SG_INFO,
-                        "Runway " << r.rwy_no << " heading = " << heading );
-            }
 
-            runways.next( &r );
+static void fgSetDistOrAltFromGlideSlope() {
+    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");
+    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 {
-        return false;
+        apt_elev = 0.0;
     }
 
-    if ( match ) {
-        double lat2, lon2, az2;
-        double azimuth = heading + 180.0;
-        while ( azimuth >= 360.0 ) { azimuth -= 360.0; }
+    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", 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 ) {
+    FGNav *nav = current_navlist->findByIdentAndFreq( id.c_str(), freq );
+
+    // set initial position from runway and heading
+    if ( nav != NULL ) {
+        SG_LOG( SG_GENERAL, SG_INFO, "Attempting to set starting position for "
+                << id << ":" << freq );
+
+        double lon = nav->get_lon();
+        double lat = nav->get_lat();
+
+        if ( fabs( fgGetDouble("/sim/presets/offset-distance") ) > SG_EPSILON )
+        {
+            double odist = fgGetDouble("/sim/presets/offset-distance")
+                * SG_NM_TO_METER;
+            double oaz = fabs(fgGetDouble("/sim/presets/offset-azimuth"))
+                + 180.0;
+            while ( oaz >= 360.0 ) { oaz -= 360.0; }
+            double olat, olon, az2;
+            geo_direct_wgs_84 ( 0, lat, lon, oaz, odist, &olat, &olon, &az2 );
+
+            lat = olat;
+            lon = olon;
+        }
+
+        // presets
+        fgSetDouble("/sim/presets/longitude-deg",  lon );
+        fgSetDouble("/sim/presets/latitude-deg",  lat );
+
+        // other code depends on the actual values being set ...
+        fgSetDouble("/position/longitude-deg",  lon );
+        fgSetDouble("/position/latitude-deg",  lat );
+        fgSetDouble("/orientation/heading-deg", 
+                    fgGetDouble("/sim/presets/heading-deg") );
 
         SG_LOG( SG_GENERAL, SG_INFO,
-                "runway =  " << found_r.lon << ", " << found_r.lat
-                << " length = " << found_r.length * SG_FEET_TO_METER * 0.5 
-                << " heading = " << azimuth );
-    
-        geo_direct_wgs_84 ( 0, found_r.lat, found_r.lon, 
-                            azimuth,
-                            found_r.length * SG_FEET_TO_METER * 0.5 - 5.0,
-                            &lat2, &lon2, &az2 );
+                "Position for " << id << ":" << freq << " is ("
+                << lon << ", "<< lat << ")" );
+
+        return true;
+    } else {
+        SG_LOG( SG_GENERAL, SG_ALERT, "Failed to locate NAV = "
+                << id << ":" << freq );
+        return false;
+    }
+}
+
+
+// Set current_options lon/lat given an airport id and heading (degrees)
+static bool fgSetPosFromFix( const string& id ) {
+    FGFix fix;
+
+    // set initial position from runway and heading
+    if ( current_fixlist->query( id.c_str(), &fix ) ) {
+        SG_LOG( SG_GENERAL, SG_INFO, "Attempting to set starting position for "
+                << id );
+
+        double lon = fix.get_lon();
+        double lat = fix.get_lat();
 
         if ( fabs( fgGetDouble("/sim/presets/offset-distance") ) > SG_EPSILON )
         {
-            double olat, olon;
-            double odist = fgGetDouble("/sim/presets/offset-distance");
-            odist *= SG_NM_TO_METER;
-            double oaz = azimuth;
-            if ( fabs(fgGetDouble("/sim/presets/offset-azimuth")) > SG_EPSILON )
-            {
-                oaz = fgGetDouble("/sim/presets/offset-azimuth") + 180;
-            }
+            double odist = fgGetDouble("/sim/presets/offset-distance")
+                * SG_NM_TO_METER;
+            double oaz = fabs(fgGetDouble("/sim/presets/offset-azimuth"))
+                + 180.0;
             while ( oaz >= 360.0 ) { oaz -= 360.0; }
-            geo_direct_wgs_84 ( 0, lat2, lon2, oaz, odist, &olat, &olon, &az2 );
-            lat2=olat;
-            lon2=olon;
+            double olat, olon, az2;
+            geo_direct_wgs_84 ( 0, lat, lon, oaz, odist, &olat, &olon, &az2 );
+
+            lat = olat;
+            lon = olon;
         }
 
         // presets
-        fgSetDouble("/sim/presets/longitude-deg",  lon2 );
-        fgSetDouble("/sim/presets/latitude-deg",  lat2 );
-        fgSetDouble("/sim/presets/heading-deg", heading );
+        fgSetDouble("/sim/presets/longitude-deg",  lon );
+        fgSetDouble("/sim/presets/latitude-deg",  lat );
 
         // other code depends on the actual values being set ...
-        fgSetDouble("/position/longitude-deg",  lon2 );
-        fgSetDouble("/position/latitude-deg",  lat2 );
-        fgSetDouble("/orientation/heading-deg", heading );
+        fgSetDouble("/position/longitude-deg",  lon );
+        fgSetDouble("/position/latitude-deg",  lat );
+        fgSetDouble("/orientation/heading-deg", 
+                    fgGetDouble("/sim/presets/heading-deg") );
 
         SG_LOG( SG_GENERAL, SG_INFO,
                 "Position for " << id << " is ("
-                << lon2 << ", "
-                << lat2 << ") new heading is "
-                << heading );
+                << lon << ", "<< lat << ")" );
 
         return true;
     } else {
+        SG_LOG( SG_GENERAL, SG_ALERT, "Failed to locate NAV = "
+                << id );
         return false;
     }
 }
 
 
-static void fgSetDistOrAltFromGlideSlope() {
-    double gs = fgGetDouble("/sim/presets/glideslope");
-    double od = fgGetDouble("/sim/presets/offset-distance");
-    double alt = fgGetDouble("/sim/presets/altitude-ft");
-    
-    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));
-        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/tan(gs);
-        od *= -1*SG_FEET_TO_METER * SG_METER_TO_NM;
-        fgSetDouble("/sim/presets/offset-distance", od);
-        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", 0);
-    }                              
-}                       
+/**
+ * Initialize vor/ndb/ils/fix list management and query systems
+ */
+bool
+fgInitNav ()
+{
+    SG_LOG(SG_GENERAL, SG_INFO, "Loading Navaids");
+
+    SG_LOG(SG_GENERAL, SG_INFO, "  VOR/NDB");
+    current_navlist = new FGNavList;
+    SGPath p_nav( globals->get_fg_root() );
+    p_nav.append( "Navaids/default.nav" );
+    current_navlist->init( p_nav );
+
+    SG_LOG(SG_GENERAL, SG_INFO, "  ILS and Marker Beacons");
+    current_beacons = new FGMarkerBeacons;
+    current_beacons->init();
+    current_ilslist = new FGILSList;
+    SGPath p_ils( globals->get_fg_root() );
+    p_ils.append( "Navaids/default.ils" );
+    current_ilslist->init( p_ils );
+
+    SG_LOG(SG_GENERAL, SG_INFO, "  Fixes");
+    current_fixlist = new FGFixList;
+    SGPath p_fix( globals->get_fg_root() );
+    p_fix.append( "Navaids/default.fix" );
+    current_fixlist->init( p_fix );
+
+    return true;
+}
 
 
 // Set the initial position based on presets (or defaults)
@@ -929,7 +983,18 @@ bool fgInitPosition() {
     // If glideslope is specified, then calculate offset-distance or
     // altitude relative to glide slope if either of those was not
     // specified.
-    fgSetDistOrAltFromGlideSlope();
+    if ( fgGetDouble("/sim/presets/glideslope-deg") > 0.1 ) {
+        fgSetDistOrAltFromGlideSlope();
+    }
+
+    // Select ground or air start depending on if an altitude is
+    // specified (this choice can be refined later based on other
+    // input.)
+    if ( fgGetDouble("/sim/presets/altitude-ft") > -9990.0 ) {
+        fgSetBool("/sim/presets/onground", false);
+    } else {
+        fgSetBool("/sim/presets/onground", true);
+    }
 
     // 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.
@@ -948,26 +1013,56 @@ bool fgInitPosition() {
     string apt = fgGetString("/sim/presets/airport-id");
     string rwy_no = fgGetString("/sim/presets/runway");
     double hdg = fgGetDouble("/sim/presets/heading-deg");
+    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 fix = fgGetString("/sim/presets/fix");
     if ( !set_pos && !apt.empty() && !rwy_no.empty() ) {
         // An airport + runway is requested
         if ( fgSetPosFromAirportIDandRwy( apt, rwy_no ) ) {
-            // set tower position (a little off the heading for single
+            // set position (a little off the heading for single
             // runway airports)
             fgSetTowerPosFromAirportID( apt, hdg );
 
             set_pos = true;
         }
     }
-
     if ( !set_pos && !apt.empty() ) {
-        if ( fgSetPosFromAirportIDandHdg( apt, hdg ) ) {
-            // set tower position (a little off the heading for single
-            // runway airports)
-            fgSetTowerPosFromAirportID( apt, hdg );
+        // An airport is requested (find runway closest to hdg)
+        bool ok = false;
+        if (fgGetDouble("/sim/presets/altitude-ft") <= 0 &&
+            fgGetDouble("/sim/presets/offset-distance") == 0)
+            ok = fgSetPosFromAirportIDandHdg( apt, hdg );
+        else
+            ok = fgSetPosFromAirportID( apt );
+            
+        if (ok) {
+                // set position (a little off the heading for single
+                // runway airports)
+                fgSetTowerPosFromAirportID( apt, hdg );
 
             set_pos = true;
         }
     }
+    if ( !set_pos && !vor.empty() ) {
+        // a VOR is requested
+        if ( fgSetPosFromNAV( vor, vor_freq ) ) {
+            set_pos = true;
+        }
+    }
+    if ( !set_pos && !ndb.empty() ) {
+        // an NDB is requested
+        if ( fgSetPosFromNAV( ndb, ndb_freq ) ) {
+            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
@@ -1092,6 +1187,9 @@ void fgInitFDM() {
                 begin = end + 1;
             }
             cur_fdm_state = new FGExternalNet( dt, host, port1, port2, port3 );
+        } else if ( model.find("pipe") == 0 ) {
+            string pipe_path = model.substr(5);
+            cur_fdm_state = new FGExternalPipe( dt, pipe_path );
         } else if ( model == "null" ) {
             cur_fdm_state = new FGNullFDM( dt );
         } else if ( model == "yasim" ) {
@@ -1111,11 +1209,11 @@ void fgInitFDM() {
 static void printMat(const sgVec4 *mat, char *name="")
 {
     int i;
-    cout << name << endl;
+    SG_LOG(SG_GENERAL, SG_BULK, name );
     for(i=0; i<4; i++) {
-        cout <<"  "<<mat[i][0]<<" "<<mat[i][1]<<" "<<mat[i][2]<<" "<<mat[i][3]<<endl;
+        SG_LOG(SG_GENERAL, SG_BULK, "  " << mat[i][0] << " " << mat[i][1]
+                                    << " " << mat[i][2] << " " << mat[i][3] );
     }
-    cout << endl;
 }
 
 // Initialize view parameters
@@ -1196,13 +1294,13 @@ SGTime *fgInitTime() {
 // 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 ) {
-    static const SGPropertyNode *longitude
-        = fgGetNode("/sim/presets/longitude-deg");
-    static const SGPropertyNode *latitude
-        = fgGetNode("/sim/presets/latitude-deg");
-    static const SGPropertyNode *altitude
-        = fgGetNode("/sim/presets/altitude-ft");
+bool fgInitSubsystems() {
+    // static const SGPropertyNode *longitude
+    //     = fgGetNode("/sim/presets/longitude-deg");
+    // static const SGPropertyNode *latitude
+    //     = fgGetNode("/sim/presets/latitude-deg");
+    // static const SGPropertyNode *altitude
+    //     = fgGetNode("/sim/presets/altitude-ft");
 
     fgLIGHT *l = &cur_light_params;
 
@@ -1216,7 +1314,7 @@ bool fgInitSubsystems( void ) {
 
     SGPath mpath( globals->get_fg_root() );
     mpath.append( "materials.xml" );
-    if ( ! material_lib.load( mpath.str() ) ) {
+    if ( ! globals->get_matlib()->load(globals->get_fg_root(), mpath.str()) ) {
         SG_LOG( SG_GENERAL, SG_ALERT, "Error loading material lib!" );
         exit(-1);
     }
@@ -1237,13 +1335,11 @@ bool fgInitSubsystems( void ) {
     // Initialize the scenery management subsystem.
     ////////////////////////////////////////////////////////////////////
 
-    if ( global_tile_mgr.init() ) {
+    if ( globals->get_tile_mgr()->init() ) {
         // Load the local scenery data
         double visibility_meters = fgGetDouble("/environment/visibility-m");
                 
-        global_tile_mgr.update( longitude->getDoubleValue(),
-                                latitude->getDoubleValue(),
-                                visibility_meters );
+        globals->get_tile_mgr()->update( visibility_meters );
     } else {
         SG_LOG( SG_GENERAL, SG_ALERT, "Error in Tile Manager initialization!" );
         exit(-1);
@@ -1251,7 +1347,8 @@ bool fgInitSubsystems( void ) {
 
     // cause refresh of viewer scenery timestamps every 15 seconds...
     global_events.Register( "FGTileMgr::refresh_view_timestamps()",
-                            &global_tile_mgr, &FGTileMgr::refresh_view_timestamps,
+                            globals->get_tile_mgr(),
+                            &FGTileMgr::refresh_view_timestamps,
                             15000 );
 
     SG_LOG( SG_GENERAL, SG_DEBUG,
@@ -1306,18 +1403,23 @@ bool fgInitSubsystems( void ) {
     // Create and register the logger.
     ////////////////////////////////////////////////////////////////////
     
-    globals->get_subsystem_mgr()->add(FGSubsystemMgr::GENERAL,
-                                      "logger",
-                                      new FGLogger);
+    globals->add_subsystem("logger", new FGLogger);
+
+
+#if defined(HAVE_PLIB_PSL)
+    ////////////////////////////////////////////////////////////////////
+    // Create and register the script manager.
+    ////////////////////////////////////////////////////////////////////
+
+    globals->add_subsystem("scripting", new FGScriptMgr);
+#endif // HAVE_PLIB_PSL
 
 
     ////////////////////////////////////////////////////////////////////
     // Create and register the XML GUI.
     ////////////////////////////////////////////////////////////////////
 
-    globals->get_subsystem_mgr()->add(FGSubsystemMgr::INIT,
-                                      "gui",
-                                      new NewGUI);
+    globals->add_subsystem("gui", new NewGUI, FGSubsystemMgr::INIT);
 
 
     ////////////////////////////////////////////////////////////////////
@@ -1379,6 +1481,7 @@ bool fgInitSubsystems( void ) {
     globals->get_environment_mgr()->bind();
 #endif
 
+#ifdef FG_USE_CLOUDS_3D
     ////////////////////////////////////////////////////////////////////
     // Initialize the 3D cloud subsystem.
     ////////////////////////////////////////////////////////////////////
@@ -1395,54 +1498,7 @@ bool fgInitSubsystems( void ) {
         }
         SG_LOG(SG_GENERAL, SG_INFO, "CLOUDS3d Loaded: ");
     }
-
-    ////////////////////////////////////////////////////////////////////
-    // Initialize vor/ndb/ils/fix list management and query systems
-    ////////////////////////////////////////////////////////////////////
-
-    SG_LOG(SG_GENERAL, SG_INFO, "Loading Navaids");
-
-    SG_LOG(SG_GENERAL, SG_INFO, "  VOR/NDB");
-    current_navlist = new FGNavList;
-    SGPath p_nav( globals->get_fg_root() );
-    p_nav.append( "Navaids/default.nav" );
-    current_navlist->init( p_nav );
-
-    SG_LOG(SG_GENERAL, SG_INFO, "  ILS and Marker Beacons");
-    current_beacons = new FGMarkerBeacons;
-    current_beacons->init();
-    current_ilslist = new FGILSList;
-    SGPath p_ils( globals->get_fg_root() );
-    p_ils.append( "Navaids/default.ils" );
-    current_ilslist->init( p_ils );
-
-    SG_LOG(SG_GENERAL, SG_INFO, "  Fixes");
-    current_fixlist = new FGFixList;
-    SGPath p_fix( globals->get_fg_root() );
-    p_fix.append( "Navaids/default.fix" );
-    current_fixlist->init( p_fix );
-
-    ////////////////////////////////////////////////////////////////////
-    // Initialize ATC list management and query systems
-    ////////////////////////////////////////////////////////////////////
-
-    SG_LOG(SG_GENERAL, SG_INFO, "  ATIS");
-    current_atislist = new FGATISList;
-    SGPath p_atis( globals->get_fg_root() );
-    p_atis.append( "ATC/default.atis" );
-    current_atislist->init( p_atis );
-
-    SG_LOG(SG_GENERAL, SG_INFO, "  Tower");
-    current_towerlist = new FGTowerList;
-    SGPath p_tower( globals->get_fg_root() );
-    p_tower.append( "ATC/default.tower" );
-    current_towerlist->init( p_tower );
-
-    SG_LOG(SG_GENERAL, SG_INFO, "  Approach");
-    current_approachlist = new FGApproachList;
-    SGPath p_approach( globals->get_fg_root() );
-    p_approach.append( "ATC/default.approach" );
-    current_approachlist->init( p_approach );
+#endif
 
     ////////////////////////////////////////////////////////////////////
     // Initialise ATC display system
@@ -1464,18 +1520,17 @@ bool fgInitSubsystems( void ) {
     // Initialise the AI Manager 
     ////////////////////////////////////////////////////////////////////
 
-    if (fgGetBool("/sim/ai-traffic/enabled")) {
-        SG_LOG(SG_GENERAL, SG_INFO, "  AI Manager");
-        globals->set_AI_mgr(new FGAIMgr);
-        globals->get_AI_mgr()->init();
-    }
+    SG_LOG(SG_GENERAL, SG_INFO, "  AI Manager");
+    globals->set_AI_mgr(new FGAIMgr);
+    globals->get_AI_mgr()->init();
+
 
 #ifdef ENABLE_AUDIO_SUPPORT
     ////////////////////////////////////////////////////////////////////
     // Initialize the sound subsystem.
     ////////////////////////////////////////////////////////////////////
 
-    globals->set_soundmgr(new FGSoundMgr);
+    globals->set_soundmgr(new SGSoundMgr);
     globals->get_soundmgr()->init();
     globals->get_soundmgr()->bind();
 
@@ -1484,26 +1539,17 @@ bool fgInitSubsystems( void ) {
     // Initialize the sound-effects subsystem.
     ////////////////////////////////////////////////////////////////////
 
-    globals->get_subsystem_mgr()->add(FGSubsystemMgr::GENERAL,
-                                      "fx",
-                                      new FGFX);
+    globals->add_subsystem("fx", new FGFX);
     
-
 #endif
 
-    globals->get_subsystem_mgr()->add(FGSubsystemMgr::GENERAL,
-                                      "instrumentation",
-                                      new FGInstrumentMgr);
-    globals->get_subsystem_mgr()->add(FGSubsystemMgr::GENERAL,
-                                      "systems",
-                                      new FGSystemMgr);
+    globals->add_subsystem("instrumentation", new FGInstrumentMgr);
+    globals->add_subsystem("systems", new FGSystemMgr);
 
     ////////////////////////////////////////////////////////////////////
     // Initialize the radio stack subsystem.
     ////////////////////////////////////////////////////////////////////
 
-                                // A textbook example of how FGSubsystem
-                                // should work...
     current_radiostack = new FGRadioStack;
     current_radiostack->init();
     current_radiostack->bind();
@@ -1543,17 +1589,22 @@ bool fgInitSubsystems( void ) {
     globals->get_io()->init();
     globals->get_io()->bind();
 
-    // Initialize the 2D panel.
+
+    ////////////////////////////////////////////////////////////////////
+    // Add a new 2D panel.
+    ////////////////////////////////////////////////////////////////////
+
     string panel_path = fgGetString("/sim/panel/path",
                                     "Panels/Default/default.xml");
-    current_panel = fgReadPanel(panel_path);
-    if (current_panel == 0) {
+
+    globals->set_current_panel( fgReadPanel(panel_path) );
+    if (globals->get_current_panel() == 0) {
         SG_LOG( SG_INPUT, SG_ALERT, 
                 "Error reading new panel from " << panel_path );
     } else {
         SG_LOG( SG_INPUT, SG_INFO, "Loaded new panel from " << panel_path );
-        current_panel->init();
-        current_panel->bind();
+        globals->get_current_panel()->init();
+        globals->get_current_panel()->bind();
     }
 
     
@@ -1573,29 +1624,31 @@ bool fgInitSubsystems( void ) {
 
 
     ////////////////////////////////////////////////////////////////////
-    // Initialize the steam subsystem.
+    // Initialize the input subsystem.
     ////////////////////////////////////////////////////////////////////
 
-    globals->get_steam()->init();
-    globals->get_steam()->bind();
+    globals->add_subsystem("input", new FGInput);
 
 
     ////////////////////////////////////////////////////////////////////
-    // Initialize the input subsystem.
+    // Bind and initialize subsystems.
     ////////////////////////////////////////////////////////////////////
 
-    globals->get_subsystem_mgr()->add(FGSubsystemMgr::GENERAL,
-                                      "input",
-                                      new FGInput);
+    globals->get_subsystem_mgr()->bind();
+    globals->get_subsystem_mgr()->init();
 
 
+#ifdef FG_MPLAYER_AS
     ////////////////////////////////////////////////////////////////////
-    // Bind and initialize subsystems.
+    // Initialize multiplayer subsystem
     ////////////////////////////////////////////////////////////////////
 
-    globals->get_subsystem_mgr()->bind();
-    globals->get_subsystem_mgr()->init();
+    globals->set_multiplayer_tx_mgr(new FGMultiplayTxMgr);
+    globals->get_multiplayer_tx_mgr()->init();
 
+    globals->set_multiplayer_rx_mgr(new FGMultiplayRxMgr);
+    globals->get_multiplayer_rx_mgr()->init();
+#endif
 
     ////////////////////////////////////////////////////////////////////////
     // End of subsystem initialization.
@@ -1611,12 +1664,12 @@ bool fgInitSubsystems( void ) {
 }
 
 
-void fgReInitSubsystems( void )
+void fgReInitSubsystems()
 {
-    static const SGPropertyNode *longitude
-        = fgGetNode("/sim/presets/longitude-deg");
-    static const SGPropertyNode *latitude
-        = fgGetNode("/sim/presets/latitude-deg");
+    // static const SGPropertyNode *longitude
+    //     = fgGetNode("/sim/presets/longitude-deg");
+    // static const SGPropertyNode *latitude
+    //     = fgGetNode("/sim/presets/latitude-deg");
     static const SGPropertyNode *altitude
         = fgGetNode("/sim/presets/altitude-ft");
     static const SGPropertyNode *master_freeze
@@ -1630,20 +1683,16 @@ void fgReInitSubsystems( void )
     if ( !freeze ) {
         fgSetBool("/sim/freeze/master", true);
     }
-    
-    // Initialize the Scenery Management subsystem
-    // FIXME, what really needs to get initialized here, at the time
-    // this was commented out, scenery.init() was a noop
-    // scenery.init();
 
+    // Initialize the FDM
     fgInitFDM();
     
     // allocates structures so must happen before any of the flight
     // model or control parameters are set
     fgAircraftInit();   // In the future this might not be the case.
 
-    // copy viewer settings into current-view path
-    globals->get_viewmgr()->copyToCurrent();
+    // reload offsets from config defaults
+    globals->get_viewmgr()->reinit();
 
     fgInitView();