1 // fg_init.cxx -- Flight Gear top level initialization routines
3 // Written by Curtis Olson, started August 1997.
5 // Copyright (C) 1997 Curtis L. Olson - http://www.flightgear.org/~curt
7 // This program is free software; you can redistribute it and/or
8 // modify it under the terms of the GNU General Public License as
9 // published by the Free Software Foundation; either version 2 of the
10 // License, or (at your option) any later version.
12 // This program is distributed in the hope that it will be useful, but
13 // WITHOUT ANY WARRANTY; without even the implied warranty of
14 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 // General Public License for more details.
17 // You should have received a copy of the GNU General Public License
18 // along with this program; if not, write to the Free Software
19 // Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
29 // For BC 5.01 this must be included before OpenGL includes.
30 #ifdef SG_MATH_EXCEPTION_CLASH
36 #include <string.h> // strcmp()
38 #if defined( unix ) || defined( __CYGWIN__ )
39 # include <unistd.h> // for gethostname()
42 // work around a stdc++ lib bug in some versions of linux, but doesn't
43 // seem to hurt to have this here for all versions of Linux.
45 # define _G_NO_EXTERN_TEMPLATES
48 #include <simgear/compiler.h>
52 #include <simgear/constants.h>
53 #include <simgear/debug/logstream.hxx>
54 #include <simgear/structure/exception.hxx>
55 #include <simgear/structure/event_mgr.hxx>
56 #include <simgear/math/point3d.hxx>
57 #include <simgear/math/polar3d.hxx>
58 #include <simgear/math/sg_geodesy.hxx>
59 #include <simgear/misc/sg_path.hxx>
60 #include <simgear/misc/interpolator.hxx>
61 #include <simgear/scene/material/matlib.hxx>
62 #include <simgear/timing/sg_time.hxx>
63 #include <simgear/timing/lowleveltime.h>
65 #include <Aircraft/aircraft.hxx>
66 #include <Aircraft/replay.hxx>
67 #include <Airports/apt_loader.hxx>
68 #include <Airports/runways.hxx>
69 #include <Airports/simple.hxx>
70 #include <AIModel/AIManager.hxx>
71 #include <ATC/ATCdisplay.hxx>
72 #include <ATC/ATCmgr.hxx>
73 #include <ATC/AIMgr.hxx>
74 #include <Autopilot/auto_gui.hxx>
75 #include <Autopilot/route_mgr.hxx>
76 #include <Autopilot/xmlauto.hxx>
77 #include <Cockpit/cockpit.hxx>
78 #include <Cockpit/panel.hxx>
79 #include <Cockpit/panel_io.hxx>
81 #include <FDM/SP/ADA.hxx>
82 #include <FDM/SP/ACMS.hxx>
84 #include <FDM/Balloon.h>
85 #include <FDM/ExternalNet/ExternalNet.hxx>
86 #include <FDM/ExternalPipe/ExternalPipe.hxx>
87 #include <FDM/JSBSim/JSBSim.hxx>
88 #include <FDM/LaRCsim/LaRCsim.hxx>
89 #include <FDM/MagicCarpet.hxx>
90 #include <FDM/UFO.hxx>
91 #include <FDM/NullFDM.hxx>
92 #include <FDM/YASim/YASim.hxx>
93 #include <GUI/new_gui.hxx>
94 #include <Include/general.hxx>
95 #include <Input/input.hxx>
96 #include <Instrumentation/instrument_mgr.hxx>
97 #include <Model/acmodel.hxx>
98 #include <AIModel/submodel.hxx>
99 #include <AIModel/AIManager.hxx>
100 #include <Navaids/navdb.hxx>
101 #include <Navaids/navlist.hxx>
102 #include <Scenery/scenery.hxx>
103 #include <Scenery/tilemgr.hxx>
104 #include <Scripting/NasalSys.hxx>
105 #include <Scripting/NasalDisplay.hxx>
106 #include <Sound/fg_fx.hxx>
107 #include <Sound/beacon.hxx>
108 #include <Sound/morse.hxx>
109 #include <Sound/voice.hxx>
110 #include <Systems/system_mgr.hxx>
111 #include <Time/light.hxx>
112 #include <Time/sunsolver.hxx>
113 #include <Time/tmp.hxx>
114 #include <Traffic/TrafficMgr.hxx>
117 #include <MultiPlayer/multiplaymgr.hxx>
120 #include <Environment/environment_mgr.hxx>
122 #include "fg_init.hxx"
124 #include "fg_commands.hxx"
125 #include "fg_props.hxx"
126 #include "options.hxx"
127 #include "globals.hxx"
128 #include "logger.hxx"
129 #include "viewmgr.hxx"
132 #if defined(FX) && defined(XMESA)
133 #include <GL/xmesa.h>
136 SG_USING_STD(string);
140 extern const char *default_root;
144 // Scan the command line options for the specified option and return
146 static string fgScanForOption( const string& option, int argc, char **argv ) {
149 if (hostname == NULL)
152 gethostname(_hostname, 256);
153 hostname = strdup(_hostname);
154 free_hostname = true;
157 SG_LOG(SG_GENERAL, SG_INFO, "Scanning command line for: " << option );
159 int len = option.length();
162 SG_LOG( SG_GENERAL, SG_DEBUG, "argv[" << i << "] = " << argv[i] );
164 string arg = argv[i];
165 if ( arg.find( option ) == 0 ) {
166 return arg.substr( len );
176 // Scan the user config files for the specified option and return
178 static string fgScanForOption( const string& option, const string& path ) {
179 sg_gzifstream in( path );
180 if ( !in.is_open() ) {
184 SG_LOG( SG_GENERAL, SG_INFO, "Scanning " << path << " for: " << option );
186 int len = option.length();
190 while ( ! in.eof() ) {
193 while ( in.get(c) && c != '\0' ) {
198 #if defined( macintosh )
199 getline( in, line, '\r' );
201 getline( in, line, '\n' );
204 // catch extraneous (DOS) line ending character
205 if ( line[line.length() - 1] < 32 ) {
206 line = line.substr( 0, line.length()-1 );
209 if ( line.find( option ) == 0 ) {
210 return line.substr( len );
219 // Scan the user config files for the specified option and return
221 static string fgScanForOption( const string& option ) {
224 #if defined( unix ) || defined( __CYGWIN__ )
225 // Next check home directory for .fgfsrc.hostname file
227 if ( homedir != NULL ) {
228 SGPath config( homedir );
229 config.append( ".fgfsrc" );
230 config.concat( "." );
231 config.concat( hostname );
232 arg = fgScanForOption( option, config.str() );
237 // Next check home directory for .fgfsrc file
239 if ( homedir != NULL ) {
240 SGPath config( homedir );
241 config.append( ".fgfsrc" );
242 arg = fgScanForOption( option, config.str() );
247 // Check for $fg_root/system.fgfsrc
248 SGPath config( globals->get_fg_root() );
249 config.append( "system.fgfsrc" );
250 arg = fgScanForOption( option, config.str() );
257 // Read in configuration (files and command line options) but only set
259 bool fgInitFGRoot ( int argc, char **argv ) {
262 // First parse command line options looking for --fg-root=, this
263 // will override anything specified in a config file
264 root = fgScanForOption( "--fg-root=", argc, argv);
266 // Check in one of the user configuration files.
268 root = fgScanForOption( "--fg-root=" );
270 // Next check if fg-root is set as an env variable
271 if ( root.empty() ) {
272 char *envp = ::getenv( "FG_ROOT" );
273 if ( envp != NULL ) {
278 // Otherwise, default to a random compiled-in location if we can't
279 // find fg-root any other way.
280 if ( root.empty() ) {
281 #if defined( __CYGWIN__ )
282 root = "/FlightGear";
283 #elif defined( WIN32 )
284 root = "\\FlightGear";
285 #elif defined(OSX_BUNDLE)
286 /* the following code looks for the base package directly inside
287 the application bundle. This can be changed fairly easily by
288 fiddling with the code below. And yes, I know it's ugly and verbose.
290 CFBundleRef appBundle = CFBundleGetMainBundle();
291 CFURLRef appUrl = CFBundleCopyBundleURL(appBundle);
292 CFRelease(appBundle);
294 // look for a 'data' subdir directly inside the bundle : is there
295 // a better place? maybe in Resources? I don't know ...
296 CFURLRef dataDir = CFURLCreateCopyAppendingPathComponent(NULL, appUrl, CFSTR("data"), true);
298 // now convert down to a path, and the a c-string
299 CFStringRef path = CFURLCopyFileSystemPath(dataDir, kCFURLPOSIXPathStyle);
300 root = CFStringGetCStringPtr(path, CFStringGetSystemEncoding());
303 CFRelease(appBundle);
311 SG_LOG(SG_INPUT, SG_INFO, "fg_root = " << root );
312 globals->set_fg_root(root);
318 // Read in configuration (files and command line options) but only set
320 bool fgInitFGAircraft ( int argc, char **argv ) {
323 // First parse command line options looking for --aircraft=, this
324 // will override anything specified in a config file
325 aircraft = fgScanForOption( "--aircraft=", argc, argv );
327 // Check in one of the user configuration files.
328 if ( aircraft.empty() )
329 aircraft = fgScanForOption( "--aircraft=" );
331 // if an aircraft was specified, set the property name
332 if ( !aircraft.empty() ) {
333 SG_LOG(SG_INPUT, SG_INFO, "aircraft = " << aircraft );
334 fgSetString("/sim/aircraft", aircraft.c_str() );
336 SG_LOG(SG_INPUT, SG_INFO, "No user specified aircraft, using default" );
343 // Return the current base package version
344 string fgBasePackageVersion() {
345 SGPath base_path( globals->get_fg_root() );
346 base_path.append("version");
348 sg_gzifstream in( base_path.str() );
349 if ( !in.is_open() ) {
350 SGPath old_path( globals->get_fg_root() );
351 old_path.append( "Thanks" );
352 sg_gzifstream old( old_path.str() );
353 if ( !old.is_open() ) {
356 return "[old version]";
367 // Initialize the localization
368 SGPropertyNode *fgInitLocale(const char *language) {
369 SGPropertyNode *c_node = NULL, *d_node = NULL;
370 SGPropertyNode *intl = fgGetNode("/sim/intl");
372 SG_LOG(SG_GENERAL, SG_INFO, "Selecting language: " << language );
374 // localization not defined
379 // Select the proper language from the list
381 vector<SGPropertyNode_ptr> locale = intl->getChildren("locale");
382 for (unsigned int i = 0; i < locale.size(); i++) {
384 vector<SGPropertyNode_ptr> lang = locale[i]->getChildren("lang");
385 for (unsigned int j = 0; j < lang.size(); j++) {
387 if (!strcmp(lang[j]->getStringValue(), language)) {
396 d_node = intl->getChild("locale");
400 // Check for localized font
401 SGPropertyNode *font_n = c_node->getNode("font", true);
402 if ( !strcmp(font_n->getStringValue(), "") )
403 font_n->setStringValue(d_node->getStringValue("font", "typewriter.txf"));
407 // Load the default strings
409 SGPath d_path( globals->get_fg_root() );
411 const char *d_path_str = d_node->getStringValue("strings");
413 SG_LOG(SG_GENERAL, SG_ALERT, "Incorrect path in configuration file.");
417 d_path.append(d_path_str);
418 SG_LOG(SG_GENERAL, SG_INFO, "Reading localized strings from "
421 SGPropertyNode *strings = c_node->getNode("strings");
423 readProperties(d_path.str(), strings);
424 } catch (const sg_exception &e) {
425 SG_LOG(SG_GENERAL, SG_ALERT, "Unable to read the localized strings");
430 // Load the language specific strings
432 if (c_node != d_node) {
433 SGPath c_path( globals->get_fg_root() );
435 const char *c_path_str = c_node->getStringValue("strings");
437 SG_LOG(SG_GENERAL, SG_ALERT, "Incorrect path in configuration file.");
441 c_path.append(c_path_str);
442 SG_LOG(SG_GENERAL, SG_INFO, "Reading localized strings from "
446 readProperties(c_path.str(), strings);
447 } catch (const sg_exception &e) {
448 SG_LOG(SG_GENERAL, SG_ALERT, "Unable to read the localized strings");
458 // Initialize the localization routines
459 bool fgDetectLanguage() {
460 char *language = ::getenv("LANG");
462 if (language == NULL) {
463 SG_LOG(SG_GENERAL, SG_INFO, "Unable to detect the language" );
467 SGPropertyNode *locale = fgInitLocale(language);
469 SG_LOG(SG_GENERAL, SG_ALERT,
470 "No internationalization settings specified in preferences.xml" );
475 globals->set_locale( locale );
480 // Attempt to locate and parse the various non-XML config files in order
481 // from least precidence to greatest precidence
483 do_options (int argc, char ** argv)
485 // Check for $fg_root/system.fgfsrc
486 SGPath config( globals->get_fg_root() );
487 config.append( "system.fgfsrc" );
488 fgParseOptions(config.str());
490 #if defined( unix ) || defined( __CYGWIN__ )
491 config.concat( "." );
492 config.concat( hostname );
493 fgParseOptions(config.str());
496 // Check for ~/.fgfsrc
497 if ( homedir != NULL ) {
498 config.set( homedir );
499 config.append( ".fgfsrc" );
500 fgParseOptions(config.str());
503 #if defined( unix ) || defined( __CYGWIN__ )
504 // Check for ~/.fgfsrc.hostname
505 config.concat( "." );
506 config.concat( hostname );
507 fgParseOptions(config.str());
510 // Parse remaining command line options
511 // These will override anything specified in a config file
512 fgParseArgs(argc, argv);
516 static string fgFindAircraftPath( const SGPath &path, const string &aircraft ) {
518 ulDir *dirp = ulOpenDir(path.str().c_str());
520 cerr << "Unable to open aircraft directory '" << path.str() << '\'' << endl;
524 while ((dire = ulReadDir(dirp)) != NULL) {
526 if ( strcmp("CVS", dire->d_name) && strcmp(".", dire->d_name)
527 && strcmp("..", dire->d_name) && strcmp("AI", dire->d_name))
530 next.append(dire->d_name);
532 string result = fgFindAircraftPath( next, aircraft );
533 if ( ! result.empty() ) {
537 } else if ( !strcmp(dire->d_name, aircraft.c_str()) ) {
548 // Read in configuration (file and command line)
549 bool fgInitConfig ( int argc, char **argv ) {
551 // First, set some sane default values
554 // Read global preferences from $FG_ROOT/preferences.xml
555 SG_LOG(SG_INPUT, SG_INFO, "Reading global preferences");
556 fgLoadProps("preferences.xml", globals->get_props());
557 SG_LOG(SG_INPUT, SG_INFO, "Finished Reading global preferences");
559 // Detect the required language as early as possible
560 if ( !fgDetectLanguage() ) {
564 // Scan user config files and command line for a specified aircraft.
565 fgInitFGAircraft(argc, argv);
567 string aircraft = fgGetString( "/sim/aircraft", "" );
568 if ( aircraft.size() > 0 ) {
569 SGPath aircraft_search( globals->get_fg_root() );
570 aircraft_search.append( "Aircraft" );
572 string aircraft_set = aircraft + "-set.xml";
574 string result = fgFindAircraftPath( aircraft_search, aircraft_set );
575 if ( !result.empty() ) {
576 fgSetString( "/sim/aircraft-dir", result.c_str() );
577 SGPath full_name( result );
578 full_name.append( aircraft_set );
580 SG_LOG(SG_INPUT, SG_INFO, "Reading default aircraft: " << aircraft
581 << " from " << full_name.str());
583 readProperties( full_name.str(), globals->get_props() );
584 } catch ( const sg_exception &e ) {
585 string message = "Error reading default aircraft: ";
586 message += e.getFormattedMessage();
587 SG_LOG(SG_INPUT, SG_ALERT, message);
591 SG_LOG( SG_INPUT, SG_ALERT, "Cannot find specified aircraft: "
597 SG_LOG( SG_INPUT, SG_ALERT, "No default aircraft specified" );
601 char *envp = ::getenv( "APPDATA" );
603 SGPath config( envp );
604 config.append( "flightgear.org" );
606 if ( homedir != NULL ) {
607 SGPath config( homedir );
608 config.append( ".fgfs" );
610 fgSetString("/sim/fg-home", config.c_str());
611 config.append( "autosave.xml" );
612 SG_LOG(SG_INPUT, SG_INFO, "Reading user settings from autosave.xml");
614 fgLoadProps(config.str().c_str(), globals->get_props(), false,
615 SGPropertyNode::USERARCHIVE);
617 SG_LOG(SG_INPUT, SG_BULK, "First time reading user settings");
619 SG_LOG(SG_INPUT, SG_BULK, "Finished Reading user settings");
622 // parse options after loading aircraft to ensure any user
623 // overrides of defaults are honored.
624 do_options(argc, argv);
635 // This function is never used, but maybe useful in the future ???
638 // Preset lon/lat given an airport id
639 static bool fgSetPosFromAirportID( const string& id ) {
643 SG_LOG( SG_GENERAL, SG_INFO,
644 "Attempting to set starting position from airport code " << id );
646 if ( fgFindAirportID( id, &a ) ) {
648 fgSetDouble("/sim/presets/longitude-deg", a->longitude );
649 fgSetDouble("/sim/presets/latitude-deg", a->latitude );
651 // other code depends on the actual postition being set so set
653 fgSetDouble("/position/longitude-deg", a->longitude );
654 fgSetDouble("/position/latitude-deg", a->latitude );
656 SG_LOG( SG_GENERAL, SG_INFO,
657 "Position for " << id << " is (" << a->longitude
658 << ", " << a->latitude << ")" );
668 // Set current tower position lon/lat given an airport id
669 static bool fgSetTowerPosFromAirportID( const string& id, double hdg ) {
671 // tower height hard coded for now...
672 float towerheight=50.0f;
674 // make a little off the heading for 1 runway airports...
675 float fudge_lon = fabs(sin(hdg)) * .003f;
676 float fudge_lat = .003f - fudge_lon;
678 const FGAirport *a = fgFindAirportID( id);
680 fgSetDouble("/sim/tower/longitude-deg", a->getLongitude() + fudge_lon);
681 fgSetDouble("/sim/tower/latitude-deg", a->getLatitude() + fudge_lat);
682 fgSetDouble("/sim/tower/altitude-ft", a->getElevation() + towerheight);
690 struct FGTowerLocationListener : SGPropertyChangeListener {
691 void valueChanged(SGPropertyNode* node) {
692 const double hdg = fgGetDouble( "/orientation/heading-deg", 0);
693 const string id(node->getStringValue());
694 fgSetTowerPosFromAirportID(id, hdg);
698 static void fgInitTowerLocationListener() {
699 fgGetNode("/sim/tower/airport-id", true)
700 ->addChangeListener( new FGTowerLocationListener() );
703 // Set current_options lon/lat given an airport id and heading (degrees)
704 static bool fgSetPosFromAirportIDandHdg( const string& id, double tgt_hdg ) {
708 // set initial position from runway and heading
710 SG_LOG( SG_GENERAL, SG_INFO,
711 "Attempting to set starting position from airport code "
712 << id << " heading " << tgt_hdg );
714 if ( ! globals->get_runways()->search( id, (int)tgt_hdg, &r ) ) {
715 SG_LOG( SG_GENERAL, SG_ALERT,
716 "Failed to find a good runway for " << id << '\n' );
723 double lat2, lon2, az2;
724 double heading = r._heading;
725 double azimuth = heading + 180.0;
726 while ( azimuth >= 360.0 ) { azimuth -= 360.0; }
728 SG_LOG( SG_GENERAL, SG_INFO,
729 "runway = " << r._lon << ", " << r._lat
730 << " length = " << r._length * SG_FEET_TO_METER
731 << " heading = " << azimuth );
733 geo_direct_wgs_84 ( 0, r._lat, r._lon, azimuth,
734 r._length * SG_FEET_TO_METER * 0.5 - 5.0,
735 &lat2, &lon2, &az2 );
737 if ( fabs( fgGetDouble("/sim/presets/offset-distance") ) > SG_EPSILON ) {
739 double odist = fgGetDouble("/sim/presets/offset-distance");
740 odist *= SG_NM_TO_METER;
741 double oaz = azimuth;
742 if ( fabs(fgGetDouble("/sim/presets/offset-azimuth")) > SG_EPSILON ) {
743 oaz = fgGetDouble("/sim/presets/offset-azimuth") + 180;
746 while ( oaz >= 360.0 ) { oaz -= 360.0; }
747 geo_direct_wgs_84 ( 0, lat2, lon2, oaz, odist, &olat, &olon, &az2 );
753 fgSetDouble("/sim/presets/longitude-deg", lon2 );
754 fgSetDouble("/sim/presets/latitude-deg", lat2 );
755 fgSetDouble("/sim/presets/heading-deg", heading );
757 // other code depends on the actual values being set ...
758 fgSetDouble("/position/longitude-deg", lon2 );
759 fgSetDouble("/position/latitude-deg", lat2 );
760 fgSetDouble("/orientation/heading-deg", heading );
762 SG_LOG( SG_GENERAL, SG_INFO,
763 "Position for " << id << " is ("
765 << lat2 << ") new heading is "
772 // Set current_options lon/lat given an airport id and runway number
773 static bool fgSetPosFromAirportIDandRwy( const string& id, const string& rwy ) {
777 // set initial position from airport and runway number
779 SG_LOG( SG_GENERAL, SG_INFO,
780 "Attempting to set starting position for "
781 << id << ":" << rwy );
783 if ( ! globals->get_runways()->search( id, rwy, &r ) ) {
784 SG_LOG( SG_GENERAL, SG_ALERT,
785 "Failed to find runway " << rwy <<
786 " at airport " << id );
793 double lat2, lon2, az2;
794 double heading = r._heading;
795 double azimuth = heading + 180.0;
796 while ( azimuth >= 360.0 ) { azimuth -= 360.0; }
798 SG_LOG( SG_GENERAL, SG_INFO,
799 "runway = " << r._lon << ", " << r._lat
800 << " length = " << r._length * SG_FEET_TO_METER
801 << " heading = " << azimuth );
803 geo_direct_wgs_84 ( 0, r._lat, r._lon,
805 r._length * SG_FEET_TO_METER * 0.5 - 5.0,
806 &lat2, &lon2, &az2 );
808 if ( fabs( fgGetDouble("/sim/presets/offset-distance") ) > SG_EPSILON )
811 double odist = fgGetDouble("/sim/presets/offset-distance");
812 odist *= SG_NM_TO_METER;
813 double oaz = azimuth;
814 if ( fabs(fgGetDouble("/sim/presets/offset-azimuth")) > SG_EPSILON )
816 oaz = fgGetDouble("/sim/presets/offset-azimuth") + 180;
817 heading = fgGetDouble("/sim/presets/heading-deg");
819 while ( oaz >= 360.0 ) { oaz -= 360.0; }
820 geo_direct_wgs_84 ( 0, lat2, lon2, oaz, odist, &olat, &olon, &az2 );
826 fgSetDouble("/sim/presets/longitude-deg", lon2 );
827 fgSetDouble("/sim/presets/latitude-deg", lat2 );
828 fgSetDouble("/sim/presets/heading-deg", heading );
830 // other code depends on the actual values being set ...
831 fgSetDouble("/position/longitude-deg", lon2 );
832 fgSetDouble("/position/latitude-deg", lat2 );
833 fgSetDouble("/orientation/heading-deg", heading );
835 SG_LOG( SG_GENERAL, SG_INFO,
836 "Position for " << id << " is ("
838 << lat2 << ") new heading is "
845 static void fgSetDistOrAltFromGlideSlope() {
846 // cout << "fgSetDistOrAltFromGlideSlope()" << endl;
847 string apt_id = fgGetString("/sim/presets/airport-id");
848 double gs = fgGetDouble("/sim/presets/glideslope-deg")
849 * SG_DEGREES_TO_RADIANS ;
850 double od = fgGetDouble("/sim/presets/offset-distance");
851 double alt = fgGetDouble("/sim/presets/altitude-ft");
853 double apt_elev = 0.0;
854 if ( ! apt_id.empty() ) {
855 apt_elev = fgGetAirportElev( apt_id );
856 if ( apt_elev < -9990.0 ) {
863 if( fabs(gs) > 0.01 && fabs(od) > 0.1 && alt < -9990 ) {
864 // set altitude from glideslope and offset-distance
865 od *= SG_NM_TO_METER * SG_METER_TO_FEET;
866 alt = fabs(od*tan(gs)) + apt_elev;
867 fgSetDouble("/sim/presets/altitude-ft", alt);
868 fgSetBool("/sim/presets/onground", false);
869 SG_LOG( SG_GENERAL, SG_INFO, "Calculated altitude as: "
871 } else if( fabs(gs) > 0.01 && alt > 0 && fabs(od) < 0.1) {
872 // set offset-distance from glideslope and altitude
873 od = (alt - apt_elev) / tan(gs);
874 od *= -1*SG_FEET_TO_METER * SG_METER_TO_NM;
875 fgSetDouble("/sim/presets/offset-distance", od);
876 fgSetBool("/sim/presets/onground", false);
877 SG_LOG( SG_GENERAL, SG_INFO, "Calculated offset distance as: "
879 } else if( fabs(gs) > 0.01 ) {
880 SG_LOG( SG_GENERAL, SG_ALERT,
881 "Glideslope given but not altitude or offset-distance." );
882 SG_LOG( SG_GENERAL, SG_ALERT, "Resetting glideslope to zero" );
883 fgSetDouble("/sim/presets/glideslope-deg", 0);
884 fgSetBool("/sim/presets/onground", true);
889 // Set current_options lon/lat given an airport id and heading (degrees)
890 static bool fgSetPosFromNAV( const string& id, const double& freq ) {
892 = globals->get_navlist()->findByIdentAndFreq( id.c_str(), freq );
894 // set initial position from runway and heading
896 SG_LOG( SG_GENERAL, SG_INFO, "Attempting to set starting position for "
897 << id << ":" << freq );
899 double lon = nav->get_lon();
900 double lat = nav->get_lat();
902 if ( fabs( fgGetDouble("/sim/presets/offset-distance") ) > SG_EPSILON )
904 double odist = fgGetDouble("/sim/presets/offset-distance")
906 double oaz = fabs(fgGetDouble("/sim/presets/offset-azimuth"))
908 while ( oaz >= 360.0 ) { oaz -= 360.0; }
909 double olat, olon, az2;
910 geo_direct_wgs_84 ( 0, lat, lon, oaz, odist, &olat, &olon, &az2 );
917 fgSetDouble("/sim/presets/longitude-deg", lon );
918 fgSetDouble("/sim/presets/latitude-deg", lat );
920 // other code depends on the actual values being set ...
921 fgSetDouble("/position/longitude-deg", lon );
922 fgSetDouble("/position/latitude-deg", lat );
923 fgSetDouble("/orientation/heading-deg",
924 fgGetDouble("/sim/presets/heading-deg") );
926 SG_LOG( SG_GENERAL, SG_INFO,
927 "Position for " << id << ":" << freq << " is ("
928 << lon << ", "<< lat << ")" );
932 SG_LOG( SG_GENERAL, SG_ALERT, "Failed to locate NAV = "
933 << id << ":" << freq );
938 // Set current_options lon/lat given an aircraft carrier id
939 static bool fgSetPosFromCarrier( const string& carrier, const string& posid ) {
941 // set initial position from runway and heading
945 if (FGAIManager::getStartPosition(carrier, posid, geodPos, heading, uvw)) {
946 double lon = geodPos.lon() * SGD_RADIANS_TO_DEGREES;
947 double lat = geodPos.lat() * SGD_RADIANS_TO_DEGREES;
948 double alt = geodPos.elev() * SG_METER_TO_FEET;
950 SG_LOG( SG_GENERAL, SG_INFO, "Attempting to set starting position for "
951 << carrier << " at lat = " << lat << ", lon = " << lon
952 << ", alt = " << alt << ", heading = " << heading);
954 fgSetDouble("/sim/presets/longitude-deg", lon);
955 fgSetDouble("/sim/presets/latitude-deg", lat);
956 fgSetDouble("/sim/presets/altitude-ft", alt);
957 fgSetDouble("/sim/presets/heading-deg", heading);
958 fgSetDouble("/position/longitude-deg", lon);
959 fgSetDouble("/position/latitude-deg", lat);
960 fgSetDouble("/position/altitude-ft", alt);
961 fgSetDouble("/orientation/heading-deg", heading);
963 fgSetString("/sim/presets/speed-set", "UVW");
964 fgSetDouble("/velocities/uBody-fps", uvw[0]);
965 fgSetDouble("/velocities/vBody-fps", uvw[1]);
966 fgSetDouble("/velocities/wBody-fps", uvw[2]);
967 fgSetDouble("/sim/presets/uBody-fps", uvw[0]);
968 fgSetDouble("/sim/presets/vBody-fps", uvw[1]);
969 fgSetDouble("/sim/presets/wBody-fps", uvw[2]);
971 fgSetBool("/sim/presets/onground", true);
975 SG_LOG( SG_GENERAL, SG_ALERT, "Failed to locate aircraft carrier = "
981 // Set current_options lon/lat given an airport id and heading (degrees)
982 static bool fgSetPosFromFix( const string& id ) {
985 // set initial position from runway and heading
986 if ( globals->get_fixlist()->query( id.c_str(), &fix ) ) {
987 SG_LOG( SG_GENERAL, SG_INFO, "Attempting to set starting position for "
990 double lon = fix.get_lon();
991 double lat = fix.get_lat();
993 if ( fabs( fgGetDouble("/sim/presets/offset-distance") ) > SG_EPSILON )
995 double odist = fgGetDouble("/sim/presets/offset-distance")
997 double oaz = fabs(fgGetDouble("/sim/presets/offset-azimuth"))
999 while ( oaz >= 360.0 ) { oaz -= 360.0; }
1000 double olat, olon, az2;
1001 geo_direct_wgs_84 ( 0, lat, lon, oaz, odist, &olat, &olon, &az2 );
1008 fgSetDouble("/sim/presets/longitude-deg", lon );
1009 fgSetDouble("/sim/presets/latitude-deg", lat );
1011 // other code depends on the actual values being set ...
1012 fgSetDouble("/position/longitude-deg", lon );
1013 fgSetDouble("/position/latitude-deg", lat );
1014 fgSetDouble("/orientation/heading-deg",
1015 fgGetDouble("/sim/presets/heading-deg") );
1017 SG_LOG( SG_GENERAL, SG_INFO,
1018 "Position for " << id << " is ("
1019 << lon << ", "<< lat << ")" );
1023 SG_LOG( SG_GENERAL, SG_ALERT, "Failed to locate NAV = "
1029 static void parseWaypoints() {
1030 string_list *waypoints = globals->get_initial_waypoints();
1032 vector<string>::iterator i;
1033 for (i = waypoints->begin();
1034 i != waypoints->end();
1039 // Now were done using the way points we can deallocate the
1041 while (waypoints->begin() != waypoints->end()) {
1042 waypoints->pop_back();
1045 globals->set_initial_waypoints(0);
1054 * Initialize vor/ndb/ils/fix list management and query systems (as
1055 * well as simple airport db list)
1060 SG_LOG(SG_GENERAL, SG_INFO, "Loading Airport Database ...");
1062 SGPath aptdb( globals->get_fg_root() );
1063 aptdb.append( "Airports/apt.dat" );
1065 SGPath p_metar( globals->get_fg_root() );
1066 p_metar.append( "Airports/metar.dat" );
1068 FGAirportList *airports = new FGAirportList();
1069 globals->set_airports( airports );
1070 FGRunwayList *runways = new FGRunwayList();
1071 globals->set_runways( runways );
1073 fgAirportDBLoad( airports, runways, aptdb.str(), p_metar.str() );
1075 FGNavList *navlist = new FGNavList;
1076 FGNavList *loclist = new FGNavList;
1077 FGNavList *gslist = new FGNavList;
1078 FGNavList *dmelist = new FGNavList;
1079 FGNavList *mkrlist = new FGNavList;
1080 FGNavList *tacanlist = new FGNavList;
1081 FGNavList *carrierlist = new FGNavList;
1082 FGTACANList *channellist = new FGTACANList;
1084 globals->set_navlist( navlist );
1085 globals->set_loclist( loclist );
1086 globals->set_gslist( gslist );
1087 globals->set_dmelist( dmelist );
1088 globals->set_mkrlist( mkrlist );
1089 globals->set_tacanlist( tacanlist );
1090 globals->set_carrierlist( carrierlist );
1091 globals->set_channellist( channellist );
1093 if ( !fgNavDBInit(airports, navlist, loclist, gslist, dmelist, mkrlist, tacanlist, carrierlist, channellist) ) {
1094 SG_LOG( SG_GENERAL, SG_ALERT,
1095 "Problems loading one or more navigational database" );
1098 if ( fgGetBool("/sim/navdb/localizers/auto-align", true) ) {
1099 // align all the localizers with their corresponding runways
1100 // since data sources are good for cockpit navigation
1101 // purposes, but not always to the error tolerances needed to
1102 // exactly place these items.
1104 = fgGetDouble( "/sim/navdb/localizers/auto-align-threshold-deg",
1106 fgNavDBAlignLOCwithRunway( runways, loclist, threshold );
1109 SG_LOG(SG_GENERAL, SG_INFO, " Fixes");
1110 SGPath p_fix( globals->get_fg_root() );
1111 p_fix.append( "Navaids/fix.dat" );
1112 FGFixList *fixlist = new FGFixList;
1113 fixlist->init( p_fix );
1114 globals->set_fixlist( fixlist );
1120 // Set the initial position based on presets (or defaults)
1121 bool fgInitPosition() {
1122 // cout << "fgInitPosition()" << endl;
1123 double gs = fgGetDouble("/sim/presets/glideslope-deg")
1124 * SG_DEGREES_TO_RADIANS ;
1125 double od = fgGetDouble("/sim/presets/offset-distance");
1126 double alt = fgGetDouble("/sim/presets/altitude-ft");
1128 bool set_pos = false;
1130 // If glideslope is specified, then calculate offset-distance or
1131 // altitude relative to glide slope if either of those was not
1133 if ( fabs( gs ) > 0.01 ) {
1134 fgSetDistOrAltFromGlideSlope();
1138 // If we have an explicit, in-range lon/lat, don't change it, just use it.
1139 // If not, check for an airport-id and use that.
1140 // If not, default to the middle of the KSFO field.
1141 // The default values for lon/lat are deliberately out of range
1142 // so that the airport-id can take effect; valid lon/lat will
1143 // override airport-id, however.
1144 double lon_deg = fgGetDouble("/sim/presets/longitude-deg");
1145 double lat_deg = fgGetDouble("/sim/presets/latitude-deg");
1146 if ( lon_deg >= -180.0 && lon_deg <= 180.0
1147 && lat_deg >= -90.0 && lat_deg <= 90.0 )
1152 string apt = fgGetString("/sim/presets/airport-id");
1153 string rwy_no = fgGetString("/sim/presets/runway");
1154 double hdg = fgGetDouble("/sim/presets/heading-deg");
1155 string vor = fgGetString("/sim/presets/vor-id");
1156 double vor_freq = fgGetDouble("/sim/presets/vor-freq");
1157 string ndb = fgGetString("/sim/presets/ndb-id");
1158 double ndb_freq = fgGetDouble("/sim/presets/ndb-freq");
1159 string carrier = fgGetString("/sim/presets/carrier");
1160 string parkpos = fgGetString("/sim/presets/parkpos");
1161 string fix = fgGetString("/sim/presets/fix");
1163 fgSetDouble( "/orientation/heading-deg", hdg );
1164 fgInitTowerLocationListener();
1166 if ( !set_pos && !apt.empty() && !rwy_no.empty() ) {
1167 // An airport + runway is requested
1168 if ( fgSetPosFromAirportIDandRwy( apt, rwy_no ) ) {
1169 // set tower position (a little off the heading for single
1171 fgSetString("/sim/tower/airport-id", apt.c_str());
1176 if ( !set_pos && !apt.empty() ) {
1177 // An airport is requested (find runway closest to hdg)
1178 if ( fgSetPosFromAirportIDandHdg( apt, hdg ) ) {
1179 // set tower position (a little off the heading for single
1181 fgSetString("/sim/tower/airport-id", apt.c_str());
1186 if ( !set_pos && !vor.empty() ) {
1187 // a VOR is requested
1188 if ( fgSetPosFromNAV( vor, vor_freq ) ) {
1193 if ( !set_pos && !ndb.empty() ) {
1194 // an NDB is requested
1195 if ( fgSetPosFromNAV( ndb, ndb_freq ) ) {
1200 if ( !set_pos && !carrier.empty() ) {
1201 // an aircraft carrier is requested
1202 if ( fgSetPosFromCarrier( carrier, parkpos ) ) {
1207 if ( !set_pos && !fix.empty() ) {
1208 // a Fix is requested
1209 if ( fgSetPosFromFix( fix ) ) {
1215 // No lon/lat specified, no airport specified, default to
1216 // middle of KSFO field.
1217 fgSetDouble("/sim/presets/longitude-deg", -122.374843);
1218 fgSetDouble("/sim/presets/latitude-deg", 37.619002);
1221 fgSetDouble( "/position/longitude-deg",
1222 fgGetDouble("/sim/presets/longitude-deg") );
1223 fgSetDouble( "/position/latitude-deg",
1224 fgGetDouble("/sim/presets/latitude-deg") );
1226 // determine if this should be an on-ground or in-air start
1227 if ((fabs(gs) > 0.01 || fabs(od) > 0.1 || alt > 0.1) && carrier.empty()) {
1228 fgSetBool("/sim/presets/onground", false);
1230 fgSetBool("/sim/presets/onground", true);
1237 // General house keeping initializations
1238 bool fgInitGeneral() {
1241 #if defined(FX) && defined(XMESA)
1242 char *mesa_win_state;
1245 SG_LOG( SG_GENERAL, SG_INFO, "General Initialization" );
1246 SG_LOG( SG_GENERAL, SG_INFO, "======= ==============" );
1248 root = globals->get_fg_root();
1249 if ( ! root.length() ) {
1250 // No root path set? Then bail ...
1251 SG_LOG( SG_GENERAL, SG_ALERT,
1252 "Cannot continue without a path to the base package "
1253 << "being defined." );
1256 SG_LOG( SG_GENERAL, SG_INFO, "FG_ROOT = " << '"' << root << '"' << endl );
1258 #if defined(FX) && defined(XMESA)
1259 // initialize full screen flag
1260 globals->set_fullscreen(false);
1261 if ( strstr ( general.get_glRenderer(), "Glide" ) ) {
1262 // Test for the MESA_GLX_FX env variable
1263 if ( (mesa_win_state = getenv( "MESA_GLX_FX" )) != NULL) {
1264 // test if we are fullscreen mesa/glide
1265 if ( (mesa_win_state[0] == 'f') ||
1266 (mesa_win_state[0] == 'F') ) {
1267 globals->set_fullscreen(true);
1277 // Initialize the flight model subsystem. This just creates the
1278 // object. The actual fdm initialization is delayed until we get a
1279 // proper scenery elevation hit. This is checked for in main.cxx
1283 if ( cur_fdm_state ) {
1284 delete cur_fdm_state;
1288 double dt = 1.0 / fgGetInt("/sim/model-hz");
1289 string model = fgGetString("/sim/flight-model");
1292 if ( model == "larcsim" ) {
1293 cur_fdm_state = new FGLaRCsim( dt );
1294 } else if ( model == "jsb" ) {
1295 cur_fdm_state = new FGJSBsim( dt );
1297 } else if ( model == "ada" ) {
1298 cur_fdm_state = new FGADA( dt );
1299 } else if ( model == "acms" ) {
1300 cur_fdm_state = new FGACMS( dt );
1302 } else if ( model == "balloon" ) {
1303 cur_fdm_state = new FGBalloonSim( dt );
1304 } else if ( model == "magic" ) {
1305 cur_fdm_state = new FGMagicCarpet( dt );
1306 } else if ( model == "ufo" ) {
1307 cur_fdm_state = new FGUFO( dt );
1308 } else if ( model == "external" ) {
1309 // external is a synonym for "--fdm=null" and is
1310 // maintained here for backwards compatibility
1311 cur_fdm_state = new FGNullFDM( dt );
1312 } else if ( model.find("network") == 0 ) {
1313 string host = "localhost";
1317 string net_options = model.substr(8);
1318 string::size_type begin, end;
1321 end = net_options.find( ",", begin );
1322 if ( end != string::npos ) {
1323 host = net_options.substr(begin, end - begin);
1327 end = net_options.find( ",", begin );
1328 if ( end != string::npos ) {
1329 port1 = atoi( net_options.substr(begin, end - begin).c_str() );
1333 end = net_options.find( ",", begin );
1334 if ( end != string::npos ) {
1335 port2 = atoi( net_options.substr(begin, end - begin).c_str() );
1339 end = net_options.find( ",", begin );
1340 if ( end != string::npos ) {
1341 port3 = atoi( net_options.substr(begin, end - begin).c_str() );
1344 cur_fdm_state = new FGExternalNet( dt, host, port1, port2, port3 );
1345 } else if ( model.find("pipe") == 0 ) {
1346 // /* old */ string pipe_path = model.substr(5);
1347 // /* old */ cur_fdm_state = new FGExternalPipe( dt, pipe_path );
1348 string pipe_path = "";
1349 string pipe_protocol = "";
1350 string pipe_options = model.substr(5);
1351 string::size_type begin, end;
1354 end = pipe_options.find( ",", begin );
1355 if ( end != string::npos ) {
1356 pipe_path = pipe_options.substr(begin, end - begin);
1359 // protocol (last option)
1360 pipe_protocol = pipe_options.substr(begin);
1361 cur_fdm_state = new FGExternalPipe( dt, pipe_path, pipe_protocol );
1362 } else if ( model == "null" ) {
1363 cur_fdm_state = new FGNullFDM( dt );
1364 } else if ( model == "yasim" ) {
1365 cur_fdm_state = new YASim( dt );
1367 SG_LOG(SG_GENERAL, SG_ALERT,
1368 "Unrecognized flight model '" << model
1369 << "', cannot init flight dynamics model.");
1373 SG_LOG(SG_GENERAL, SG_ALERT, "FlightGear aborting\n\n");
1378 static void printMat(const sgVec4 *mat, char *name="")
1381 SG_LOG(SG_GENERAL, SG_BULK, name );
1382 for(i=0; i<4; i++) {
1383 SG_LOG(SG_GENERAL, SG_BULK, " " << mat[i][0] << " " << mat[i][1]
1384 << " " << mat[i][2] << " " << mat[i][3] );
1388 // Initialize view parameters
1390 // force update of model so that viewer can get some data...
1391 globals->get_aircraft_model()->update(0);
1392 // run update for current view so that data is current...
1393 globals->get_viewmgr()->update(0);
1395 printMat(globals->get_current_view()->get_VIEW(),"VIEW");
1396 printMat(globals->get_current_view()->get_UP(),"UP");
1397 // printMat(globals->get_current_view()->get_LOCAL(),"LOCAL");
1402 SGTime *fgInitTime() {
1404 static const SGPropertyNode *longitude
1405 = fgGetNode("/position/longitude-deg");
1406 static const SGPropertyNode *latitude
1407 = fgGetNode("/position/latitude-deg");
1408 static const SGPropertyNode *cur_time_override
1409 = fgGetNode("/sim/time/cur-time-override", true);
1411 SGPath zone( globals->get_fg_root() );
1412 zone.append( "Timezone" );
1413 SGTime *t = new SGTime( longitude->getDoubleValue()
1414 * SGD_DEGREES_TO_RADIANS,
1415 latitude->getDoubleValue()
1416 * SGD_DEGREES_TO_RADIANS,
1418 cur_time_override->getLongValue() );
1420 globals->set_warp_delta( 0 );
1422 t->update( 0.0, 0.0,
1423 cur_time_override->getLongValue(),
1424 globals->get_warp() );
1430 // set up a time offset (aka warp) if one is specified
1431 void fgInitTimeOffset() {
1432 static const SGPropertyNode *longitude
1433 = fgGetNode("/position/longitude-deg");
1434 static const SGPropertyNode *latitude
1435 = fgGetNode("/position/latitude-deg");
1436 static const SGPropertyNode *cur_time_override
1437 = fgGetNode("/sim/time/cur-time-override", true);
1439 // Handle potential user specified time offsets
1440 int orig_warp = globals->get_warp();
1441 SGTime *t = globals->get_time_params();
1442 time_t cur_time = t->get_cur_time();
1443 time_t currGMT = sgTimeGetGMT( gmtime(&cur_time) );
1444 time_t systemLocalTime = sgTimeGetGMT( localtime(&cur_time) );
1445 time_t aircraftLocalTime =
1446 sgTimeGetGMT( fgLocaltime(&cur_time, t->get_zonename() ) );
1448 // Okay, we now have several possible scenarios
1449 int offset = fgGetInt("/sim/startup/time-offset");
1450 string offset_type = fgGetString("/sim/startup/time-offset-type");
1453 if ( offset_type == "real" ) {
1455 } else if ( offset_type == "dawn" ) {
1456 warp = fgTimeSecondsUntilSunAngle( cur_time,
1457 longitude->getDoubleValue()
1458 * SGD_DEGREES_TO_RADIANS,
1459 latitude->getDoubleValue()
1460 * SGD_DEGREES_TO_RADIANS,
1462 } else if ( offset_type == "morning" ) {
1463 warp = fgTimeSecondsUntilSunAngle( cur_time,
1464 longitude->getDoubleValue()
1465 * SGD_DEGREES_TO_RADIANS,
1466 latitude->getDoubleValue()
1467 * SGD_DEGREES_TO_RADIANS,
1469 } else if ( offset_type == "noon" ) {
1470 warp = fgTimeSecondsUntilSunAngle( cur_time,
1471 longitude->getDoubleValue()
1472 * SGD_DEGREES_TO_RADIANS,
1473 latitude->getDoubleValue()
1474 * SGD_DEGREES_TO_RADIANS,
1476 } else if ( offset_type == "afternoon" ) {
1477 warp = fgTimeSecondsUntilSunAngle( cur_time,
1478 longitude->getDoubleValue()
1479 * SGD_DEGREES_TO_RADIANS,
1480 latitude->getDoubleValue()
1481 * SGD_DEGREES_TO_RADIANS,
1483 } else if ( offset_type == "dusk" ) {
1484 warp = fgTimeSecondsUntilSunAngle( cur_time,
1485 longitude->getDoubleValue()
1486 * SGD_DEGREES_TO_RADIANS,
1487 latitude->getDoubleValue()
1488 * SGD_DEGREES_TO_RADIANS,
1490 } else if ( offset_type == "evening" ) {
1491 warp = fgTimeSecondsUntilSunAngle( cur_time,
1492 longitude->getDoubleValue()
1493 * SGD_DEGREES_TO_RADIANS,
1494 latitude->getDoubleValue()
1495 * SGD_DEGREES_TO_RADIANS,
1497 } else if ( offset_type == "midnight" ) {
1498 warp = fgTimeSecondsUntilSunAngle( cur_time,
1499 longitude->getDoubleValue()
1500 * SGD_DEGREES_TO_RADIANS,
1501 latitude->getDoubleValue()
1502 * SGD_DEGREES_TO_RADIANS,
1504 } else if ( offset_type == "system-offset" ) {
1506 } else if ( offset_type == "gmt-offset" ) {
1507 warp = offset - (currGMT - systemLocalTime);
1508 } else if ( offset_type == "latitude-offset" ) {
1509 warp = offset - (aircraftLocalTime - systemLocalTime);
1510 } else if ( offset_type == "system" ) {
1511 warp = offset - cur_time;
1512 } else if ( offset_type == "gmt" ) {
1513 warp = offset - currGMT;
1514 } else if ( offset_type == "latitude" ) {
1515 warp = offset - (aircraftLocalTime - systemLocalTime) - cur_time;
1517 SG_LOG( SG_GENERAL, SG_ALERT,
1518 "FG_TIME::Unsupported offset type " << offset_type );
1521 globals->set_warp( orig_warp + warp );
1522 t->update( longitude->getDoubleValue() * SGD_DEGREES_TO_RADIANS,
1523 latitude->getDoubleValue() * SGD_DEGREES_TO_RADIANS,
1524 cur_time_override->getLongValue(),
1525 globals->get_warp() );
1527 SG_LOG( SG_GENERAL, SG_INFO, "After fgInitTimeOffset(): warp = "
1528 << globals->get_warp() );
1532 // This is the top level init routine which calls all the other
1533 // initialization routines. If you are adding a subsystem to flight
1534 // gear, its initialization call should located in this routine.
1535 // Returns non-zero if a problem encountered.
1536 bool fgInitSubsystems() {
1537 // static const SGPropertyNode *longitude
1538 // = fgGetNode("/sim/presets/longitude-deg");
1539 // static const SGPropertyNode *latitude
1540 // = fgGetNode("/sim/presets/latitude-deg");
1541 // static const SGPropertyNode *altitude
1542 // = fgGetNode("/sim/presets/altitude-ft");
1543 SG_LOG( SG_GENERAL, SG_INFO, "Initialize Subsystems");
1544 SG_LOG( SG_GENERAL, SG_INFO, "========== ==========");
1546 ////////////////////////////////////////////////////////////////////
1547 // Initialize the event manager subsystem.
1548 ////////////////////////////////////////////////////////////////////
1550 globals->get_event_mgr()->init();
1551 globals->get_event_mgr()->setRealtimeProperty(fgGetNode("/sim/time/delta-realtime-sec", true));
1553 ////////////////////////////////////////////////////////////////////
1554 // Initialize the property interpolator subsystem
1555 ////////////////////////////////////////////////////////////////////
1556 globals->add_subsystem("interpolator", new SGInterpolator);
1559 ////////////////////////////////////////////////////////////////////
1560 // Add the FlightGear property utilities.
1561 ////////////////////////////////////////////////////////////////////
1562 globals->add_subsystem("properties", new FGProperties);
1564 ////////////////////////////////////////////////////////////////////
1565 // Initialize the material property subsystem.
1566 ////////////////////////////////////////////////////////////////////
1568 SGPath mpath( globals->get_fg_root() );
1569 mpath.append( "materials.xml" );
1570 string season = fgGetString("/sim/startup/season", "summer");
1571 if ( ! globals->get_matlib()->load(globals->get_fg_root(), mpath.str(), season.c_str()) ) {
1572 SG_LOG( SG_GENERAL, SG_ALERT, "Error loading material lib!" );
1577 ////////////////////////////////////////////////////////////////////
1578 // Initialize the scenery management subsystem.
1579 ////////////////////////////////////////////////////////////////////
1581 if ( globals->get_tile_mgr()->init() ) {
1582 // Load the local scenery data
1583 double visibility_meters = fgGetDouble("/environment/visibility-m");
1585 globals->get_tile_mgr()->update( visibility_meters );
1587 SG_LOG( SG_GENERAL, SG_ALERT, "Error in Tile Manager initialization!" );
1591 // cause refresh of viewer scenery timestamps every 15 seconds...
1592 globals->get_event_mgr()->addTask( "FGTileMgr::refresh_view_timestamps()",
1593 globals->get_tile_mgr(),
1594 &FGTileMgr::refresh_view_timestamps,
1598 ////////////////////////////////////////////////////////////////////
1599 // Initialize the flight model subsystem.
1600 ////////////////////////////////////////////////////////////////////
1604 // allocates structures so must happen before any of the flight
1605 // model or control parameters are set
1606 fgAircraftInit(); // In the future this might not be the case.
1609 ////////////////////////////////////////////////////////////////////
1610 // Initialize the XML Autopilot subsystem.
1611 ////////////////////////////////////////////////////////////////////
1613 globals->add_subsystem( "xml-autopilot", new FGXMLAutopilot );
1614 globals->add_subsystem( "route-manager", new FGRouteMgr );
1617 ////////////////////////////////////////////////////////////////////
1618 // Initialize the view manager subsystem.
1619 ////////////////////////////////////////////////////////////////////
1623 ////////////////////////////////////////////////////////////////////
1624 // Create and register the logger.
1625 ////////////////////////////////////////////////////////////////////
1627 globals->add_subsystem("logger", new FGLogger);
1629 ////////////////////////////////////////////////////////////////////
1630 // Create and register the XML GUI.
1631 ////////////////////////////////////////////////////////////////////
1633 globals->add_subsystem("gui", new NewGUI, SGSubsystemMgr::INIT);
1636 ////////////////////////////////////////////////////////////////////
1637 // Initialize the local time subsystem.
1638 ////////////////////////////////////////////////////////////////////
1640 // update the current timezone each 30 minutes
1641 globals->get_event_mgr()->addTask( "fgUpdateLocalTime()",
1642 &fgUpdateLocalTime, 30*60 );
1643 fgInitTimeOffset(); // the environment subsystem needs this
1646 ////////////////////////////////////////////////////////////////////
1647 // Initialize the weather subsystem.
1648 ////////////////////////////////////////////////////////////////////
1650 // Initialize the weather modeling subsystem
1651 globals->add_subsystem("environment", new FGEnvironmentMgr);
1654 ////////////////////////////////////////////////////////////////////
1655 // Initialize the lighting subsystem.
1656 ////////////////////////////////////////////////////////////////////
1658 globals->add_subsystem("lighting", new FGLight);
1660 //////////////////////////////////////////////////////////////////////
1661 // Initialize the 2D cloud subsystem.
1662 ////////////////////////////////////////////////////////////////////
1663 fgGetBool("/sim/rendering/bump-mapping", false);
1665 #ifdef ENABLE_AUDIO_SUPPORT
1666 ////////////////////////////////////////////////////////////////////
1667 // Initialize the sound subsystem.
1668 ////////////////////////////////////////////////////////////////////
1670 init_volume = fgGetFloat("/sim/sound/volume");
1671 fgSetFloat("/sim/sound/volume", 0.0f);
1672 globals->set_soundmgr(new SGSoundMgr);
1673 globals->get_soundmgr()->init();
1674 globals->get_soundmgr()->bind();
1677 ////////////////////////////////////////////////////////////////////
1678 // Initialize the sound-effects subsystem.
1679 ////////////////////////////////////////////////////////////////////
1681 globals->add_subsystem("fx", new FGFX);
1682 globals->add_subsystem("voice", new FGVoiceMgr);
1685 ////////////////////////////////////////////////////////////////////
1686 // Initialise ATC display system
1687 ////////////////////////////////////////////////////////////////////
1689 SG_LOG(SG_GENERAL, SG_INFO, " ATC Display");
1690 globals->set_ATC_display(new FGATCDisplay);
1691 globals->get_ATC_display()->init();
1693 ////////////////////////////////////////////////////////////////////
1694 // Initialise the ATC Manager
1695 ////////////////////////////////////////////////////////////////////
1697 SG_LOG(SG_GENERAL, SG_INFO, " ATC Manager");
1698 globals->set_ATC_mgr(new FGATCMgr);
1699 globals->get_ATC_mgr()->init();
1701 ////////////////////////////////////////////////////////////////////
1702 // Initialise the AI Manager
1703 ////////////////////////////////////////////////////////////////////
1705 SG_LOG(SG_GENERAL, SG_INFO, " AI Manager");
1706 globals->set_AI_mgr(new FGAIMgr);
1707 globals->get_AI_mgr()->init();
1709 ////////////////////////////////////////////////////////////////////
1710 // Initialise the AI Model Manager
1711 ////////////////////////////////////////////////////////////////////
1712 SG_LOG(SG_GENERAL, SG_INFO, " AI Model Manager");
1713 globals->add_subsystem("ai_model", new FGAIManager);
1714 globals->add_subsystem("submodel_mgr", new FGSubmodelMgr);
1717 // It's probably a good idea to initialize the top level traffic manager
1718 // After the AI and ATC systems have been initialized properly.
1719 // AI Traffic manager
1720 globals->add_subsystem("Traffic Manager", new FGTrafficManager);
1721 FGTrafficManager *dispatcher =
1722 (FGTrafficManager*) globals->get_subsystem("Traffic Manager");
1723 SGPath path = globals->get_fg_root();
1724 path.append("/Traffic/fgtraffic.xml");
1727 //globals->get_subsystem("Traffic Manager")->init();
1729 globals->add_subsystem("instrumentation", new FGInstrumentMgr);
1730 globals->add_subsystem("systems", new FGSystemMgr);
1734 ////////////////////////////////////////////////////////////////////
1735 // Initialize the cockpit subsystem
1736 ////////////////////////////////////////////////////////////////////
1737 if( fgCockpitInit( ¤t_aircraft )) {
1738 // Cockpit initialized ok.
1740 SG_LOG( SG_GENERAL, SG_ALERT, "Error in Cockpit initialization!" );
1745 ////////////////////////////////////////////////////////////////////
1746 // Initialize the autopilot subsystem.
1747 ////////////////////////////////////////////////////////////////////
1749 // FIXME: these should go in the
1750 // GUI initialization code, not here.
1751 // fgAPAdjustInit();
1752 NewTgtAirportInit();
1756 ////////////////////////////////////////////////////////////////////
1757 // Initialize I/O subsystem.
1758 ////////////////////////////////////////////////////////////////////
1760 globals->get_io()->init();
1761 globals->get_io()->bind();
1764 ////////////////////////////////////////////////////////////////////
1765 // Initialise Nasal display system
1766 ////////////////////////////////////////////////////////////////////
1768 SG_LOG(SG_GENERAL, SG_INFO, " Nasal Display");
1769 globals->set_Nasal_display(new FGNasalDisplay);
1770 globals->get_Nasal_display()->init();
1772 ////////////////////////////////////////////////////////////////////
1773 // Add a new 2D panel.
1774 ////////////////////////////////////////////////////////////////////
1776 string panel_path = fgGetString("/sim/panel/path",
1777 "Panels/Default/default.xml");
1779 globals->set_current_panel( fgReadPanel(panel_path) );
1780 if (globals->get_current_panel() == 0) {
1781 SG_LOG( SG_INPUT, SG_ALERT,
1782 "Error reading new panel from " << panel_path );
1784 SG_LOG( SG_INPUT, SG_INFO, "Loaded new panel from " << panel_path );
1785 globals->get_current_panel()->init();
1786 globals->get_current_panel()->bind();
1790 ////////////////////////////////////////////////////////////////////
1791 // Initialize the controls subsystem.
1792 ////////////////////////////////////////////////////////////////////
1794 globals->get_controls()->init();
1795 globals->get_controls()->bind();
1798 ////////////////////////////////////////////////////////////////////
1799 // Initialize the input subsystem.
1800 ////////////////////////////////////////////////////////////////////
1802 globals->add_subsystem("input", new FGInput);
1805 ////////////////////////////////////////////////////////////////////
1806 // Initialize the replay subsystem
1807 ////////////////////////////////////////////////////////////////////
1808 globals->add_subsystem("replay", new FGReplay);
1810 ////////////////////////////////////////////////////////////////////
1811 // Bind and initialize subsystems.
1812 ////////////////////////////////////////////////////////////////////
1814 globals->get_subsystem_mgr()->bind();
1815 globals->get_subsystem_mgr()->init();
1817 #ifdef FG_MPLAYER_AS
1818 ////////////////////////////////////////////////////////////////////
1819 // Initialize multiplayer subsystem
1820 ////////////////////////////////////////////////////////////////////
1822 globals->set_multiplayer_mgr(new FGMultiplayMgr);
1823 globals->get_multiplayer_mgr()->init();
1826 ////////////////////////////////////////////////////////////////////////
1827 // Initialize the Nasal interpreter.
1828 // Do this last, so that the loaded scripts see initialized state
1829 ////////////////////////////////////////////////////////////////////////
1830 FGNasalSys* nasal = new FGNasalSys();
1831 globals->add_subsystem("nasal", nasal);
1834 ////////////////////////////////////////////////////////////////////
1835 // At this point we could try and parse the waypoint options
1836 ///////////////////////////////////////////////////////////////////
1839 // initialize methods that depend on other subsystems.
1840 globals->get_subsystem_mgr()->postinit();
1842 ////////////////////////////////////////////////////////////////////////
1843 // End of subsystem initialization.
1844 ////////////////////////////////////////////////////////////////////
1846 SG_LOG( SG_GENERAL, SG_INFO, endl);
1848 // Save the initial state for future
1850 globals->saveInitialState();
1856 void fgReInitSubsystems()
1858 // static const SGPropertyNode *longitude
1859 // = fgGetNode("/sim/presets/longitude-deg");
1860 // static const SGPropertyNode *latitude
1861 // = fgGetNode("/sim/presets/latitude-deg");
1862 static const SGPropertyNode *altitude
1863 = fgGetNode("/sim/presets/altitude-ft");
1864 static const SGPropertyNode *master_freeze
1865 = fgGetNode("/sim/freeze/master");
1867 SG_LOG( SG_GENERAL, SG_INFO,
1868 "fgReInitSubsystems(): /position/altitude = "
1869 << altitude->getDoubleValue() );
1871 bool freeze = master_freeze->getBoolValue();
1873 fgSetBool("/sim/freeze/master", true);
1875 fgSetBool("/sim/crashed", false);
1877 // Force reupdating the positions of the ai 3d models. They are used for
1878 // initializing ground level for the FDM.
1879 globals->get_subsystem("ai_model")->reinit();
1881 // Initialize the FDM
1884 // allocates structures so must happen before any of the flight
1885 // model or control parameters are set
1886 fgAircraftInit(); // In the future this might not be the case.
1888 // reload offsets from config defaults
1889 globals->get_viewmgr()->reinit();
1893 globals->get_controls()->reset_all();
1895 fgUpdateLocalTime();
1897 // re-init to proper time of day setting
1901 fgSetBool("/sim/freeze/master", false);
1903 fgSetBool("/sim/sceneryloaded",false);