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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
28 // For BC 5.01 this must be included before OpenGL includes.
29 #ifdef SG_MATH_EXCEPTION_CLASH
35 #include <string.h> // strcmp()
37 #if defined( unix ) || defined( __CYGWIN__ )
38 # include <unistd.h> // for gethostname()
40 #if defined( _MSC_VER) || defined(__MINGW32__)
41 # include <direct.h> // for getcwd()
42 # define getcwd _getcwd
45 // work around a stdc++ lib bug in some versions of linux, but doesn't
46 // seem to hurt to have this here for all versions of Linux.
48 # define _G_NO_EXTERN_TEMPLATES
51 #include <simgear/compiler.h>
55 #include <simgear/constants.h>
56 #include <simgear/debug/logstream.hxx>
57 #include <simgear/structure/exception.hxx>
58 #include <simgear/structure/event_mgr.hxx>
59 #include <simgear/math/point3d.hxx>
60 #include <simgear/math/polar3d.hxx>
61 #include <simgear/math/sg_geodesy.hxx>
62 #include <simgear/misc/sg_path.hxx>
63 #include <simgear/misc/interpolator.hxx>
64 #include <simgear/scene/material/matlib.hxx>
65 #include <simgear/timing/sg_time.hxx>
66 #include <simgear/timing/lowleveltime.h>
68 #include <Aircraft/aircraft.hxx>
69 #include <Aircraft/replay.hxx>
70 #include <Airports/apt_loader.hxx>
71 #include <Airports/runways.hxx>
72 #include <Airports/simple.hxx>
73 #include <AIModel/AIManager.hxx>
74 #include <ATC/ATCmgr.hxx>
75 #include <ATC/AIMgr.hxx>
76 #include <Autopilot/route_mgr.hxx>
77 #include <Autopilot/xmlauto.hxx>
78 #include <Cockpit/cockpit.hxx>
79 #include <Cockpit/panel.hxx>
80 #include <Cockpit/panel_io.hxx>
82 #include <FDM/SP/ADA.hxx>
83 #include <FDM/SP/ACMS.hxx>
85 #include <FDM/Balloon.h>
86 #include <FDM/ExternalNet/ExternalNet.hxx>
87 #include <FDM/ExternalPipe/ExternalPipe.hxx>
88 #include <FDM/JSBSim/JSBSim.hxx>
89 #include <FDM/LaRCsim/LaRCsim.hxx>
90 #include <FDM/MagicCarpet.hxx>
91 #include <FDM/UFO.hxx>
92 #include <FDM/NullFDM.hxx>
93 #include <FDM/YASim/YASim.hxx>
94 #include <GUI/new_gui.hxx>
95 #include <Include/general.hxx>
96 #include <Input/input.hxx>
97 #include <Instrumentation/instrument_mgr.hxx>
98 #include <Model/acmodel.hxx>
99 #include <AIModel/submodel.hxx>
100 #include <AIModel/AIManager.hxx>
101 #include <Navaids/navdb.hxx>
102 #include <Navaids/navlist.hxx>
103 #include <Scenery/scenery.hxx>
104 #include <Scenery/tilemgr.hxx>
105 #include <Scripting/NasalSys.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>
115 #include <MultiPlayer/multiplaymgr.hxx>
117 #include <Environment/environment_mgr.hxx>
119 #include "fg_init.hxx"
121 #include "fg_commands.hxx"
122 #include "fg_props.hxx"
123 #include "options.hxx"
124 #include "globals.hxx"
125 #include "logger.hxx"
126 #include "viewmgr.hxx"
129 #if defined(FX) && defined(XMESA)
130 #include <GL/xmesa.h>
133 SG_USING_STD(string);
137 extern const char *default_root;
141 // Scan the command line options for the specified option and return
143 static string fgScanForOption( const string& option, int argc, char **argv ) {
146 if (hostname == NULL)
149 gethostname(_hostname, 256);
150 hostname = strdup(_hostname);
151 free_hostname = true;
154 SG_LOG(SG_GENERAL, SG_INFO, "Scanning command line for: " << option );
156 int len = option.length();
159 SG_LOG( SG_GENERAL, SG_DEBUG, "argv[" << i << "] = " << argv[i] );
161 string arg = argv[i];
162 if ( arg.find( option ) == 0 ) {
163 return arg.substr( len );
173 // Scan the user config files for the specified option and return
175 static string fgScanForOption( const string& option, const string& path ) {
176 sg_gzifstream in( path );
177 if ( !in.is_open() ) {
181 SG_LOG( SG_GENERAL, SG_INFO, "Scanning " << path << " for: " << option );
183 int len = option.length();
187 while ( ! in.eof() ) {
190 while ( in.get(c) && c != '\0' ) {
195 #if defined( macintosh )
196 getline( in, line, '\r' );
198 getline( in, line, '\n' );
201 // catch extraneous (DOS) line ending character
202 if ( line[line.length() - 1] < 32 ) {
203 line = line.substr( 0, line.length()-1 );
206 if ( line.find( option ) == 0 ) {
207 return line.substr( len );
216 // Scan the user config files for the specified option and return
218 static string fgScanForOption( const string& option ) {
221 #if defined( unix ) || defined( __CYGWIN__ )
222 // Next check home directory for .fgfsrc.hostname file
224 if ( homedir != NULL ) {
225 SGPath config( homedir );
226 config.append( ".fgfsrc" );
227 config.concat( "." );
228 config.concat( hostname );
229 arg = fgScanForOption( option, config.str() );
234 // Next check home directory for .fgfsrc file
236 if ( homedir != NULL ) {
237 SGPath config( homedir );
238 config.append( ".fgfsrc" );
239 arg = fgScanForOption( option, config.str() );
244 // Check for $fg_root/system.fgfsrc
245 SGPath config( globals->get_fg_root() );
246 config.append( "system.fgfsrc" );
247 arg = fgScanForOption( option, config.str() );
254 // Read in configuration (files and command line options) but only set
256 bool fgInitFGRoot ( int argc, char **argv ) {
259 // First parse command line options looking for --fg-root=, this
260 // will override anything specified in a config file
261 root = fgScanForOption( "--fg-root=", argc, argv);
263 // Check in one of the user configuration files.
265 root = fgScanForOption( "--fg-root=" );
267 // Next check if fg-root is set as an env variable
268 if ( root.empty() ) {
269 char *envp = ::getenv( "FG_ROOT" );
270 if ( envp != NULL ) {
275 // Otherwise, default to a random compiled-in location if we can't
276 // find fg-root any other way.
277 if ( root.empty() ) {
278 #if defined( __CYGWIN__ )
279 root = "/FlightGear";
280 #elif defined( WIN32 )
281 root = "\\FlightGear";
282 #elif defined(OSX_BUNDLE)
283 /* the following code looks for the base package directly inside
284 the application bundle. This can be changed fairly easily by
285 fiddling with the code below. And yes, I know it's ugly and verbose.
287 CFBundleRef appBundle = CFBundleGetMainBundle();
288 CFURLRef appUrl = CFBundleCopyBundleURL(appBundle);
289 CFRelease(appBundle);
291 // look for a 'data' subdir directly inside the bundle : is there
292 // a better place? maybe in Resources? I don't know ...
293 CFURLRef dataDir = CFURLCreateCopyAppendingPathComponent(NULL, appUrl, CFSTR("data"), true);
295 // now convert down to a path, and the a c-string
296 CFStringRef path = CFURLCopyFileSystemPath(dataDir, kCFURLPOSIXPathStyle);
297 root = CFStringGetCStringPtr(path, CFStringGetSystemEncoding());
300 CFRelease(appBundle);
308 SG_LOG(SG_INPUT, SG_INFO, "fg_root = " << root );
309 globals->set_fg_root(root);
315 // Read in configuration (files and command line options) but only set
317 bool fgInitFGAircraft ( int argc, char **argv ) {
320 // First parse command line options looking for --aircraft=, this
321 // will override anything specified in a config file
322 aircraft = fgScanForOption( "--aircraft=", argc, argv );
323 if ( aircraft.empty() ) {
324 // check synonym option
325 aircraft = fgScanForOption( "--vehicle=", argc, argv );
328 // Check in one of the user configuration files.
329 if ( aircraft.empty() ) {
330 aircraft = fgScanForOption( "--aircraft=" );
332 if ( aircraft.empty() ) {
333 aircraft = fgScanForOption( "--vehicle=" );
336 // if an aircraft was specified, set the property name
337 if ( !aircraft.empty() ) {
338 SG_LOG(SG_INPUT, SG_INFO, "aircraft = " << aircraft );
339 fgSetString("/sim/aircraft", aircraft.c_str() );
341 SG_LOG(SG_INPUT, SG_INFO, "No user specified aircraft, using default" );
348 // Return the current base package version
349 string fgBasePackageVersion() {
350 SGPath base_path( globals->get_fg_root() );
351 base_path.append("version");
353 sg_gzifstream in( base_path.str() );
354 if ( !in.is_open() ) {
355 SGPath old_path( globals->get_fg_root() );
356 old_path.append( "Thanks" );
357 sg_gzifstream old( old_path.str() );
358 if ( !old.is_open() ) {
361 return "[old version]";
372 // Initialize the localization
373 SGPropertyNode *fgInitLocale(const char *language) {
374 SGPropertyNode *c_node = NULL, *d_node = NULL;
375 SGPropertyNode *intl = fgGetNode("/sim/intl");
377 SG_LOG(SG_GENERAL, SG_INFO, "Selecting language: " << language );
379 // localization not defined
384 // Select the proper language from the list
386 vector<SGPropertyNode_ptr> locale = intl->getChildren("locale");
387 for (unsigned int i = 0; i < locale.size(); i++) {
389 vector<SGPropertyNode_ptr> lang = locale[i]->getChildren("lang");
390 for (unsigned int j = 0; j < lang.size(); j++) {
392 if (!strcmp(lang[j]->getStringValue(), language)) {
401 d_node = intl->getChild("locale");
405 // Check for localized font
406 SGPropertyNode *font_n = c_node->getNode("font", true);
407 if ( !strcmp(font_n->getStringValue(), "") )
408 font_n->setStringValue(d_node->getStringValue("font", "typewriter.txf"));
412 // Load the default strings
414 SGPath d_path( globals->get_fg_root() );
416 const char *d_path_str = d_node->getStringValue("strings");
418 SG_LOG(SG_GENERAL, SG_ALERT, "No path in " << d_node->getPath() << "/strings.");
422 d_path.append(d_path_str);
423 SG_LOG(SG_GENERAL, SG_INFO, "Reading localized strings from " << d_path.str());
425 SGPropertyNode *strings = c_node->getNode("strings");
427 readProperties(d_path.str(), strings);
428 } catch (const sg_exception &e) {
429 SG_LOG(SG_GENERAL, SG_ALERT, "Unable to read the localized strings");
434 // Load the language specific strings
436 if (c_node != d_node) {
437 SGPath c_path( globals->get_fg_root() );
439 const char *c_path_str = c_node->getStringValue("strings");
441 SG_LOG(SG_GENERAL, SG_ALERT, "No path in " << c_node->getPath() << "/strings");
445 c_path.append(c_path_str);
446 SG_LOG(SG_GENERAL, SG_INFO, "Reading localized strings from " << c_path.str());
449 readProperties(c_path.str(), strings);
450 } catch (const sg_exception &e) {
451 SG_LOG(SG_GENERAL, SG_ALERT,
452 "Unable to read the localized strings from " << c_path.str());
462 // Initialize the localization routines
463 bool fgDetectLanguage() {
464 char *language = ::getenv("LANG");
466 if (language == NULL) {
467 SG_LOG(SG_GENERAL, SG_INFO, "Unable to detect the language" );
471 SGPropertyNode *locale = fgInitLocale(language);
473 SG_LOG(SG_GENERAL, SG_ALERT,
474 "No internationalization settings specified in preferences.xml" );
479 globals->set_locale( locale );
484 // Attempt to locate and parse the various non-XML config files in order
485 // from least precidence to greatest precidence
487 do_options (int argc, char ** argv)
489 // Check for $fg_root/system.fgfsrc
490 SGPath config( globals->get_fg_root() );
491 config.append( "system.fgfsrc" );
492 fgParseOptions(config.str());
494 #if defined( unix ) || defined( __CYGWIN__ )
495 config.concat( "." );
496 config.concat( hostname );
497 fgParseOptions(config.str());
500 // Check for ~/.fgfsrc
501 if ( homedir != NULL ) {
502 config.set( homedir );
503 config.append( ".fgfsrc" );
504 fgParseOptions(config.str());
507 #if defined( unix ) || defined( __CYGWIN__ )
508 // Check for ~/.fgfsrc.hostname
509 config.concat( "." );
510 config.concat( hostname );
511 fgParseOptions(config.str());
514 // Parse remaining command line options
515 // These will override anything specified in a config file
516 fgParseArgs(argc, argv);
520 static string fgFindAircraftPath( const SGPath &path, const string &aircraft,
521 SGPropertyNode *cache, int depth = 0 )
523 const int MAXDEPTH = 1;
526 ulDir *dirp = ulOpenDir(path.str().c_str());
528 cerr << "Unable to open aircraft directory '" << path.str() << '\'' << endl;
533 while ((dire = ulReadDir(dirp)) != NULL) {
535 if (depth > MAXDEPTH)
538 if (!strcmp("CVS", dire->d_name) || !strcmp(".", dire->d_name)
539 || !strcmp("..", dire->d_name) || !strcmp("AI", dire->d_name))
543 next.append(dire->d_name);
545 result = fgFindAircraftPath( next, aircraft, cache, depth + 1 );
546 if ( ! result.empty() )
550 int len = strlen(dire->d_name);
551 if (len < 9 || strcmp(dire->d_name + len - 8, "-set.xml"))
557 if (!cache->getChild("aircraft", i++, false))
560 SGPropertyNode *n, *entry = cache->getChild("aircraft", --i, true);
562 n = entry->getNode("file", true);
563 n->setStringValue(dire->d_name);
564 n->setAttribute(SGPropertyNode::USERARCHIVE, true);
566 n = entry->getNode("path", true);
567 n->setStringValue(path.str().c_str());
568 n->setAttribute(SGPropertyNode::USERARCHIVE, true);
570 if ( !strcmp(dire->d_name, aircraft.c_str()) ) {
582 // Read in configuration (file and command line)
583 bool fgInitConfig ( int argc, char **argv ) {
585 // First, set some sane default values
588 // Read global preferences from $FG_ROOT/preferences.xml
589 SG_LOG(SG_INPUT, SG_INFO, "Reading global preferences");
590 fgLoadProps("preferences.xml", globals->get_props());
591 SG_LOG(SG_INPUT, SG_INFO, "Finished Reading global preferences");
593 // Detect the required language as early as possible
594 if ( !fgDetectLanguage() ) {
598 SGPropertyNode autosave;
600 char *envp = ::getenv( "APPDATA" );
602 SGPath config( envp );
603 config.append( "flightgear.org" );
605 if ( homedir != NULL ) {
606 SGPath config( homedir );
607 config.append( ".fgfs" );
609 fgSetString("/sim/fg-home", config.c_str());
610 config.append( "autosave.xml" );
611 SG_LOG(SG_INPUT, SG_INFO, "Reading user settings from " << config.str());
613 readProperties(config.str(), &autosave, SGPropertyNode::USERARCHIVE);
615 SG_LOG(SG_INPUT, SG_DEBUG, "First time reading user settings");
617 SG_LOG(SG_INPUT, SG_DEBUG, "Finished Reading user settings");
619 SGPropertyNode *cache_root = autosave.getNode("sim/startup/path-cache", true);
622 // Scan user config files and command line for a specified aircraft.
623 fgInitFGAircraft(argc, argv);
625 string aircraft = fgGetString( "/sim/aircraft", "" );
626 if ( aircraft.size() > 0 ) {
627 SGPath aircraft_search( globals->get_fg_root() );
628 aircraft_search.append( "Aircraft" );
630 string aircraft_set = aircraft + "-set.xml";
633 // check if the *-set.xml file is already in the cache
634 if (globals->get_fg_root() == cache_root->getStringValue("fg-root", "")) {
635 vector<SGPropertyNode_ptr> cache = cache_root->getChildren("aircraft");
636 for (unsigned int i = 0; i < cache.size(); i++) {
637 const char *name = cache[i]->getStringValue("file", "");
638 if (aircraft_set == name) {
639 const char *path = cache[i]->getStringValue("path", "");
649 if (result.empty()) {
650 // prepare cache for rescan
651 SGPropertyNode *n = cache_root->getNode("fg-root", true);
652 n->setStringValue(globals->get_fg_root().c_str());
653 n->setAttribute(SGPropertyNode::USERARCHIVE, true);
654 cache_root->removeChildren("aircraft");
656 result = fgFindAircraftPath( aircraft_search, aircraft_set, cache_root );
659 if ( !result.empty() ) {
660 fgSetString( "/sim/aircraft-dir", result.c_str() );
661 SGPath full_name( result );
662 full_name.append( aircraft_set );
664 SG_LOG(SG_INPUT, SG_INFO, "Reading default aircraft: " << aircraft
665 << " from " << full_name.str());
667 readProperties( full_name.str(), globals->get_props() );
668 } catch ( const sg_exception &e ) {
669 string message = "Error reading default aircraft: ";
670 message += e.getFormattedMessage();
671 SG_LOG(SG_INPUT, SG_ALERT, message);
675 SG_LOG( SG_INPUT, SG_ALERT, "Cannot find specified aircraft: "
681 SG_LOG( SG_INPUT, SG_ALERT, "No default aircraft specified" );
684 copyProperties(&autosave, globals->get_props());
686 // parse options after loading aircraft to ensure any user
687 // overrides of defaults are honored.
688 do_options(argc, argv);
699 // This function is never used, but maybe useful in the future ???
702 // Preset lon/lat given an airport id
703 static bool fgSetPosFromAirportID( const string& id ) {
707 SG_LOG( SG_GENERAL, SG_INFO,
708 "Attempting to set starting position from airport code " << id );
710 if ( fgFindAirportID( id, &a ) ) {
712 fgSetDouble("/sim/presets/longitude-deg", a->longitude );
713 fgSetDouble("/sim/presets/latitude-deg", a->latitude );
715 // other code depends on the actual postition being set so set
717 fgSetDouble("/position/longitude-deg", a->longitude );
718 fgSetDouble("/position/latitude-deg", a->latitude );
720 SG_LOG( SG_GENERAL, SG_INFO,
721 "Position for " << id << " is (" << a->longitude
722 << ", " << a->latitude << ")" );
732 // Set current tower position lon/lat given an airport id
733 static bool fgSetTowerPosFromAirportID( const string& id) {
734 const FGAirport *a = fgFindAirportID( id);
736 SGGeod tower = a->getTowerLocation();
737 fgSetDouble("/sim/tower/longitude-deg", tower.getLongitudeDeg());
738 fgSetDouble("/sim/tower/latitude-deg", tower.getLatitudeDeg());
739 fgSetDouble("/sim/tower/altitude-ft", tower.getElevationFt());
747 struct FGTowerLocationListener : SGPropertyChangeListener {
748 void valueChanged(SGPropertyNode* node) {
749 const string id(node->getStringValue());
750 fgSetTowerPosFromAirportID(id);
754 void fgInitTowerLocationListener() {
755 fgGetNode("/sim/tower/airport-id", true)
756 ->addChangeListener( new FGTowerLocationListener(), true );
759 // Set current_options lon/lat given an airport id and heading (degrees)
760 static bool fgSetPosFromAirportIDandHdg( const string& id, double tgt_hdg ) {
766 // set initial position from runway and heading
767 SG_LOG( SG_GENERAL, SG_INFO,
768 "Attempting to set starting position from airport code "
769 << id << " heading " << tgt_hdg );
771 if ( ! globals->get_runways()->search( id, (int)tgt_hdg, &r ) ) {
772 SG_LOG( SG_GENERAL, SG_ALERT,
773 "Failed to find a good runway for " << id << '\n' );
776 fgSetString("/sim/atc/runway", r._rwy_no.c_str());
778 double lat2, lon2, az2;
779 double heading = r._heading;
780 double azimuth = heading + 180.0;
781 while ( azimuth >= 360.0 ) { azimuth -= 360.0; }
783 SG_LOG( SG_GENERAL, SG_INFO,
784 "runway = " << r._lon << ", " << r._lat
785 << " length = " << r._length * SG_FEET_TO_METER
786 << " heading = " << azimuth );
788 geo_direct_wgs_84 ( 0, r._lat, r._lon, azimuth,
789 r._length * SG_FEET_TO_METER * 0.5 - 5.0,
790 &lat2, &lon2, &az2 );
792 if ( fabs( fgGetDouble("/sim/presets/offset-distance") ) > SG_EPSILON ) {
794 double odist = fgGetDouble("/sim/presets/offset-distance");
795 odist *= SG_NM_TO_METER;
796 double oaz = azimuth;
797 if ( fabs(fgGetDouble("/sim/presets/offset-azimuth")) > SG_EPSILON ) {
798 oaz = fgGetDouble("/sim/presets/offset-azimuth") + 180;
801 while ( oaz >= 360.0 ) { oaz -= 360.0; }
802 geo_direct_wgs_84 ( 0, lat2, lon2, oaz, odist, &olat, &olon, &az2 );
808 fgSetDouble("/sim/presets/longitude-deg", lon2 );
809 fgSetDouble("/sim/presets/latitude-deg", lat2 );
810 fgSetDouble("/sim/presets/heading-deg", heading );
812 // other code depends on the actual values being set ...
813 fgSetDouble("/position/longitude-deg", lon2 );
814 fgSetDouble("/position/latitude-deg", lat2 );
815 fgSetDouble("/orientation/heading-deg", heading );
817 SG_LOG( SG_GENERAL, SG_INFO,
818 "Position for " << id << " is ("
820 << lat2 << ") new heading is "
827 // Set current_options lon/lat given an airport id and runway number
828 static bool fgSetPosFromAirportIDandRwy( const string& id, const string& rwy, bool rwy_req ) {
834 // set initial position from airport and runway number
835 SG_LOG( SG_GENERAL, SG_INFO,
836 "Attempting to set starting position for "
837 << id << ":" << rwy );
839 if ( ! globals->get_runways()->search( id, rwy, &r ) ) {
840 SG_LOG( SG_GENERAL, rwy_req ? SG_ALERT : SG_INFO,
841 "Failed to find runway " << rwy <<
842 " at airport " << id << ". Using default runway." );
845 fgSetString("/sim/atc/runway", r._rwy_no.c_str());
847 double lat2, lon2, az2;
848 double heading = r._heading;
849 double azimuth = heading + 180.0;
850 while ( azimuth >= 360.0 ) { azimuth -= 360.0; }
852 SG_LOG( SG_GENERAL, SG_INFO,
853 "runway = " << r._lon << ", " << r._lat
854 << " length = " << r._length * SG_FEET_TO_METER
855 << " heading = " << azimuth );
857 geo_direct_wgs_84 ( 0, r._lat, r._lon,
859 r._length * SG_FEET_TO_METER * 0.5 - 5.0,
860 &lat2, &lon2, &az2 );
862 if ( fabs( fgGetDouble("/sim/presets/offset-distance") ) > SG_EPSILON )
865 double odist = fgGetDouble("/sim/presets/offset-distance");
866 odist *= SG_NM_TO_METER;
867 double oaz = azimuth;
868 if ( fabs(fgGetDouble("/sim/presets/offset-azimuth")) > SG_EPSILON )
870 oaz = fgGetDouble("/sim/presets/offset-azimuth") + 180;
871 heading = fgGetDouble("/sim/presets/heading-deg");
873 while ( oaz >= 360.0 ) { oaz -= 360.0; }
874 geo_direct_wgs_84 ( 0, lat2, lon2, oaz, odist, &olat, &olon, &az2 );
880 fgSetDouble("/sim/presets/longitude-deg", lon2 );
881 fgSetDouble("/sim/presets/latitude-deg", lat2 );
882 fgSetDouble("/sim/presets/heading-deg", heading );
884 // other code depends on the actual values being set ...
885 fgSetDouble("/position/longitude-deg", lon2 );
886 fgSetDouble("/position/latitude-deg", lat2 );
887 fgSetDouble("/orientation/heading-deg", heading );
889 SG_LOG( SG_GENERAL, SG_INFO,
890 "Position for " << id << " is ("
892 << lat2 << ") new heading is "
899 static void fgSetDistOrAltFromGlideSlope() {
900 // cout << "fgSetDistOrAltFromGlideSlope()" << endl;
901 string apt_id = fgGetString("/sim/presets/airport-id");
902 double gs = fgGetDouble("/sim/presets/glideslope-deg")
903 * SG_DEGREES_TO_RADIANS ;
904 double od = fgGetDouble("/sim/presets/offset-distance");
905 double alt = fgGetDouble("/sim/presets/altitude-ft");
907 double apt_elev = 0.0;
908 if ( ! apt_id.empty() ) {
909 apt_elev = fgGetAirportElev( apt_id );
910 if ( apt_elev < -9990.0 ) {
917 if( fabs(gs) > 0.01 && fabs(od) > 0.1 && alt < -9990 ) {
918 // set altitude from glideslope and offset-distance
919 od *= SG_NM_TO_METER * SG_METER_TO_FEET;
920 alt = fabs(od*tan(gs)) + apt_elev;
921 fgSetDouble("/sim/presets/altitude-ft", alt);
922 fgSetBool("/sim/presets/onground", false);
923 SG_LOG( SG_GENERAL, SG_INFO, "Calculated altitude as: "
925 } else if( fabs(gs) > 0.01 && alt > 0 && fabs(od) < 0.1) {
926 // set offset-distance from glideslope and altitude
927 od = (alt - apt_elev) / tan(gs);
928 od *= -1*SG_FEET_TO_METER * SG_METER_TO_NM;
929 fgSetDouble("/sim/presets/offset-distance", od);
930 fgSetBool("/sim/presets/onground", false);
931 SG_LOG( SG_GENERAL, SG_INFO, "Calculated offset distance as: "
933 } else if( fabs(gs) > 0.01 ) {
934 SG_LOG( SG_GENERAL, SG_ALERT,
935 "Glideslope given but not altitude or offset-distance." );
936 SG_LOG( SG_GENERAL, SG_ALERT, "Resetting glideslope to zero" );
937 fgSetDouble("/sim/presets/glideslope-deg", 0);
938 fgSetBool("/sim/presets/onground", true);
943 // Set current_options lon/lat given an airport id and heading (degrees)
944 static bool fgSetPosFromNAV( const string& id, const double& freq ) {
946 = globals->get_navlist()->findByIdentAndFreq( id.c_str(), freq );
948 // set initial position from runway and heading
950 SG_LOG( SG_GENERAL, SG_INFO, "Attempting to set starting position for "
951 << id << ":" << freq );
953 double lon = nav->get_lon();
954 double lat = nav->get_lat();
956 if ( fabs( fgGetDouble("/sim/presets/offset-distance") ) > SG_EPSILON )
958 double odist = fgGetDouble("/sim/presets/offset-distance")
960 double oaz = fabs(fgGetDouble("/sim/presets/offset-azimuth"))
962 while ( oaz >= 360.0 ) { oaz -= 360.0; }
963 double olat, olon, az2;
964 geo_direct_wgs_84 ( 0, lat, lon, oaz, odist, &olat, &olon, &az2 );
971 fgSetDouble("/sim/presets/longitude-deg", lon );
972 fgSetDouble("/sim/presets/latitude-deg", lat );
974 // other code depends on the actual values being set ...
975 fgSetDouble("/position/longitude-deg", lon );
976 fgSetDouble("/position/latitude-deg", lat );
977 fgSetDouble("/orientation/heading-deg",
978 fgGetDouble("/sim/presets/heading-deg") );
980 SG_LOG( SG_GENERAL, SG_INFO,
981 "Position for " << id << ":" << freq << " is ("
982 << lon << ", "<< lat << ")" );
986 SG_LOG( SG_GENERAL, SG_ALERT, "Failed to locate NAV = "
987 << id << ":" << freq );
992 // Set current_options lon/lat given an aircraft carrier id
993 static bool fgSetPosFromCarrier( const string& carrier, const string& posid ) {
995 // set initial position from runway and heading
999 if (FGAIManager::getStartPosition(carrier, posid, geodPos, heading, uvw)) {
1000 double lon = geodPos.getLongitudeDeg();
1001 double lat = geodPos.getLatitudeDeg();
1002 double alt = geodPos.getElevationFt();
1004 SG_LOG( SG_GENERAL, SG_INFO, "Attempting to set starting position for "
1005 << carrier << " at lat = " << lat << ", lon = " << lon
1006 << ", alt = " << alt << ", heading = " << heading);
1008 fgSetDouble("/sim/presets/longitude-deg", lon);
1009 fgSetDouble("/sim/presets/latitude-deg", lat);
1010 fgSetDouble("/sim/presets/altitude-ft", alt);
1011 fgSetDouble("/sim/presets/heading-deg", heading);
1012 fgSetDouble("/position/longitude-deg", lon);
1013 fgSetDouble("/position/latitude-deg", lat);
1014 fgSetDouble("/position/altitude-ft", alt);
1015 fgSetDouble("/orientation/heading-deg", heading);
1017 fgSetString("/sim/presets/speed-set", "UVW");
1018 fgSetDouble("/velocities/uBody-fps", uvw(0));
1019 fgSetDouble("/velocities/vBody-fps", uvw(1));
1020 fgSetDouble("/velocities/wBody-fps", uvw(2));
1021 fgSetDouble("/sim/presets/uBody-fps", uvw(0));
1022 fgSetDouble("/sim/presets/vBody-fps", uvw(1));
1023 fgSetDouble("/sim/presets/wBody-fps", uvw(2));
1025 fgSetBool("/sim/presets/onground", true);
1029 SG_LOG( SG_GENERAL, SG_ALERT, "Failed to locate aircraft carrier = "
1035 // Set current_options lon/lat given an airport id and heading (degrees)
1036 static bool fgSetPosFromFix( const string& id ) {
1039 // set initial position from runway and heading
1040 if ( globals->get_fixlist()->query( id.c_str(), &fix ) ) {
1041 SG_LOG( SG_GENERAL, SG_INFO, "Attempting to set starting position for "
1044 double lon = fix.get_lon();
1045 double lat = fix.get_lat();
1047 if ( fabs( fgGetDouble("/sim/presets/offset-distance") ) > SG_EPSILON )
1049 double odist = fgGetDouble("/sim/presets/offset-distance")
1051 double oaz = fabs(fgGetDouble("/sim/presets/offset-azimuth"))
1053 while ( oaz >= 360.0 ) { oaz -= 360.0; }
1054 double olat, olon, az2;
1055 geo_direct_wgs_84 ( 0, lat, lon, oaz, odist, &olat, &olon, &az2 );
1062 fgSetDouble("/sim/presets/longitude-deg", lon );
1063 fgSetDouble("/sim/presets/latitude-deg", lat );
1065 // other code depends on the actual values being set ...
1066 fgSetDouble("/position/longitude-deg", lon );
1067 fgSetDouble("/position/latitude-deg", lat );
1068 fgSetDouble("/orientation/heading-deg",
1069 fgGetDouble("/sim/presets/heading-deg") );
1071 SG_LOG( SG_GENERAL, SG_INFO,
1072 "Position for " << id << " is ("
1073 << lon << ", "<< lat << ")" );
1077 SG_LOG( SG_GENERAL, SG_ALERT, "Failed to locate NAV = "
1085 * Initialize vor/ndb/ils/fix list management and query systems (as
1086 * well as simple airport db list)
1091 SG_LOG(SG_GENERAL, SG_INFO, "Loading Airport Database ...");
1093 SGPath aptdb( globals->get_fg_root() );
1094 aptdb.append( "Airports/apt.dat" );
1096 SGPath p_metar( globals->get_fg_root() );
1097 p_metar.append( "Airports/metar.dat" );
1099 FGAirportList *airports = new FGAirportList();
1100 globals->set_airports( airports );
1101 FGRunwayList *runways = new FGRunwayList();
1102 globals->set_runways( runways );
1104 fgAirportDBLoad( airports, runways, aptdb.str(), p_metar.str() );
1106 FGNavList *navlist = new FGNavList;
1107 FGNavList *loclist = new FGNavList;
1108 FGNavList *gslist = new FGNavList;
1109 FGNavList *dmelist = new FGNavList;
1110 FGNavList *mkrlist = new FGNavList;
1111 FGNavList *tacanlist = new FGNavList;
1112 FGNavList *carrierlist = new FGNavList;
1113 FGTACANList *channellist = new FGTACANList;
1115 globals->set_navlist( navlist );
1116 globals->set_loclist( loclist );
1117 globals->set_gslist( gslist );
1118 globals->set_dmelist( dmelist );
1119 globals->set_mkrlist( mkrlist );
1120 globals->set_tacanlist( tacanlist );
1121 globals->set_carrierlist( carrierlist );
1122 globals->set_channellist( channellist );
1124 if ( !fgNavDBInit(airports, navlist, loclist, gslist, dmelist, mkrlist, tacanlist, carrierlist, channellist) ) {
1125 SG_LOG( SG_GENERAL, SG_ALERT,
1126 "Problems loading one or more navigational database" );
1129 if ( fgGetBool("/sim/navdb/localizers/auto-align", true) ) {
1130 // align all the localizers with their corresponding runways
1131 // since data sources are good for cockpit navigation
1132 // purposes, but not always to the error tolerances needed to
1133 // exactly place these items.
1135 = fgGetDouble( "/sim/navdb/localizers/auto-align-threshold-deg",
1137 fgNavDBAlignLOCwithRunway( runways, loclist, threshold );
1140 SG_LOG(SG_GENERAL, SG_INFO, " Fixes");
1141 SGPath p_fix( globals->get_fg_root() );
1142 p_fix.append( "Navaids/fix.dat" );
1143 FGFixList *fixlist = new FGFixList;
1144 fixlist->init( p_fix );
1145 globals->set_fixlist( fixlist );
1147 SG_LOG(SG_GENERAL, SG_INFO, " Airways");
1148 SGPath p_awy( globals->get_fg_root() );
1149 p_awy.append( "Navaids/awy.dat" );
1150 FGAirwayNetwork *awyNet = new FGAirwayNetwork;
1151 //cerr << "Loading Airways" << endl;
1152 awyNet->load (p_awy );
1154 //cerr << "initializing airways" << endl;
1155 globals->set_airwaynet( awyNet );
1161 // Set the initial position based on presets (or defaults)
1162 bool fgInitPosition() {
1163 // cout << "fgInitPosition()" << endl;
1164 double gs = fgGetDouble("/sim/presets/glideslope-deg")
1165 * SG_DEGREES_TO_RADIANS ;
1166 double od = fgGetDouble("/sim/presets/offset-distance");
1167 double alt = fgGetDouble("/sim/presets/altitude-ft");
1169 bool set_pos = false;
1171 // If glideslope is specified, then calculate offset-distance or
1172 // altitude relative to glide slope if either of those was not
1174 if ( fabs( gs ) > 0.01 ) {
1175 fgSetDistOrAltFromGlideSlope();
1179 // If we have an explicit, in-range lon/lat, don't change it, just use it.
1180 // If not, check for an airport-id and use that.
1181 // If not, default to the middle of the KSFO field.
1182 // The default values for lon/lat are deliberately out of range
1183 // so that the airport-id can take effect; valid lon/lat will
1184 // override airport-id, however.
1185 double lon_deg = fgGetDouble("/sim/presets/longitude-deg");
1186 double lat_deg = fgGetDouble("/sim/presets/latitude-deg");
1187 if ( lon_deg >= -180.0 && lon_deg <= 180.0
1188 && lat_deg >= -90.0 && lat_deg <= 90.0 )
1193 string apt = fgGetString("/sim/presets/airport-id");
1194 string rwy_no = fgGetString("/sim/presets/runway");
1195 bool rwy_req = fgGetBool("/sim/presets/runway-requested");
1196 string vor = fgGetString("/sim/presets/vor-id");
1197 double vor_freq = fgGetDouble("/sim/presets/vor-freq");
1198 string ndb = fgGetString("/sim/presets/ndb-id");
1199 double ndb_freq = fgGetDouble("/sim/presets/ndb-freq");
1200 string carrier = fgGetString("/sim/presets/carrier");
1201 string parkpos = fgGetString("/sim/presets/parkpos");
1202 string fix = fgGetString("/sim/presets/fix");
1203 SGPropertyNode *hdg_preset = fgGetNode("/sim/presets/heading-deg", true);
1204 double hdg = hdg_preset->getDoubleValue();
1206 // save some start parameters, so that we can later say what the
1207 // user really requested. TODO generalize that and move it to options.cxx
1208 static bool start_options_saved = false;
1209 if (!start_options_saved) {
1210 start_options_saved = true;
1211 SGPropertyNode *opt = fgGetNode("/sim/startup/options", true);
1213 opt->setDoubleValue("latitude-deg", lat_deg);
1214 opt->setDoubleValue("longitude-deg", lon_deg);
1215 opt->setDoubleValue("heading-deg", hdg);
1216 opt->setStringValue("airport", apt.c_str());
1217 opt->setStringValue("runway", rwy_no.c_str());
1221 hdg = fgGetDouble("/environment/config/boundary/entry/wind-from-heading-deg", 270);
1223 if ( !set_pos && !apt.empty() && !rwy_no.empty() ) {
1224 // An airport + runway is requested
1225 if ( fgSetPosFromAirportIDandRwy( apt, rwy_no, rwy_req ) ) {
1226 // set tower position (a little off the heading for single
1228 fgSetString("/sim/tower/airport-id", apt.c_str());
1233 if ( !set_pos && !apt.empty() ) {
1234 // An airport is requested (find runway closest to hdg)
1235 if ( fgSetPosFromAirportIDandHdg( apt, hdg ) ) {
1236 // set tower position (a little off the heading for single
1238 fgSetString("/sim/tower/airport-id", apt.c_str());
1243 if (hdg_preset->getDoubleValue() > 9990.0)
1244 hdg_preset->setDoubleValue(hdg);
1246 if ( !set_pos && !vor.empty() ) {
1247 // a VOR is requested
1248 if ( fgSetPosFromNAV( vor, vor_freq ) ) {
1253 if ( !set_pos && !ndb.empty() ) {
1254 // an NDB is requested
1255 if ( fgSetPosFromNAV( ndb, ndb_freq ) ) {
1260 if ( !set_pos && !carrier.empty() ) {
1261 // an aircraft carrier is requested
1262 if ( fgSetPosFromCarrier( carrier, parkpos ) ) {
1267 if ( !set_pos && !fix.empty() ) {
1268 // a Fix is requested
1269 if ( fgSetPosFromFix( fix ) ) {
1275 // No lon/lat specified, no airport specified, default to
1276 // middle of KSFO field.
1277 fgSetDouble("/sim/presets/longitude-deg", -122.374843);
1278 fgSetDouble("/sim/presets/latitude-deg", 37.619002);
1281 fgSetDouble( "/position/longitude-deg",
1282 fgGetDouble("/sim/presets/longitude-deg") );
1283 fgSetDouble( "/position/latitude-deg",
1284 fgGetDouble("/sim/presets/latitude-deg") );
1285 fgSetDouble( "/orientation/heading-deg", hdg_preset->getDoubleValue());
1287 // determine if this should be an on-ground or in-air start
1288 if ((fabs(gs) > 0.01 || fabs(od) > 0.1 || alt > 0.1) && carrier.empty()) {
1289 fgSetBool("/sim/presets/onground", false);
1291 fgSetBool("/sim/presets/onground", true);
1298 // General house keeping initializations
1299 bool fgInitGeneral() {
1302 #if defined(FX) && defined(XMESA)
1303 char *mesa_win_state;
1306 SG_LOG( SG_GENERAL, SG_INFO, "General Initialization" );
1307 SG_LOG( SG_GENERAL, SG_INFO, "======= ==============" );
1309 root = globals->get_fg_root();
1310 if ( ! root.length() ) {
1311 // No root path set? Then bail ...
1312 SG_LOG( SG_GENERAL, SG_ALERT,
1313 "Cannot continue without a path to the base package "
1314 << "being defined." );
1317 SG_LOG( SG_GENERAL, SG_INFO, "FG_ROOT = " << '"' << root << '"' << endl );
1319 #if defined(FX) && defined(XMESA)
1320 // initialize full screen flag
1321 globals->set_fullscreen(false);
1322 if ( strstr ( general.get_glRenderer(), "Glide" ) ) {
1323 // Test for the MESA_GLX_FX env variable
1324 if ( (mesa_win_state = getenv( "MESA_GLX_FX" )) != NULL) {
1325 // test if we are fullscreen mesa/glide
1326 if ( (mesa_win_state[0] == 'f') ||
1327 (mesa_win_state[0] == 'F') ) {
1328 globals->set_fullscreen(true);
1334 char buf[512], *cwd = getcwd(buf, 512);
1335 fgSetString("/sim/fg-current", cwd ? cwd : "");
1340 // Initialize the flight model subsystem. This just creates the
1341 // object. The actual fdm initialization is delayed until we get a
1342 // proper scenery elevation hit. This is checked for in main.cxx
1346 if ( cur_fdm_state ) {
1347 delete cur_fdm_state;
1351 double dt = 1.0 / fgGetInt("/sim/model-hz");
1352 string model = fgGetString("/sim/flight-model");
1354 if ( model == "larcsim" ) {
1355 cur_fdm_state = new FGLaRCsim( dt );
1356 } else if ( model == "jsb" ) {
1357 cur_fdm_state = new FGJSBsim( dt );
1359 } else if ( model == "ada" ) {
1360 cur_fdm_state = new FGADA( dt );
1361 } else if ( model == "acms" ) {
1362 cur_fdm_state = new FGACMS( dt );
1364 } else if ( model == "balloon" ) {
1365 cur_fdm_state = new FGBalloonSim( dt );
1366 } else if ( model == "magic" ) {
1367 cur_fdm_state = new FGMagicCarpet( dt );
1368 } else if ( model == "ufo" ) {
1369 cur_fdm_state = new FGUFO( dt );
1370 } else if ( model == "external" ) {
1371 // external is a synonym for "--fdm=null" and is
1372 // maintained here for backwards compatibility
1373 cur_fdm_state = new FGNullFDM( dt );
1374 } else if ( model.find("network") == 0 ) {
1375 string host = "localhost";
1379 string net_options = model.substr(8);
1380 string::size_type begin, end;
1383 end = net_options.find( ",", begin );
1384 if ( end != string::npos ) {
1385 host = net_options.substr(begin, end - begin);
1389 end = net_options.find( ",", begin );
1390 if ( end != string::npos ) {
1391 port1 = atoi( net_options.substr(begin, end - begin).c_str() );
1395 end = net_options.find( ",", begin );
1396 if ( end != string::npos ) {
1397 port2 = atoi( net_options.substr(begin, end - begin).c_str() );
1401 end = net_options.find( ",", begin );
1402 if ( end != string::npos ) {
1403 port3 = atoi( net_options.substr(begin, end - begin).c_str() );
1406 cur_fdm_state = new FGExternalNet( dt, host, port1, port2, port3 );
1407 } else if ( model.find("pipe") == 0 ) {
1408 // /* old */ string pipe_path = model.substr(5);
1409 // /* old */ cur_fdm_state = new FGExternalPipe( dt, pipe_path );
1410 string pipe_path = "";
1411 string pipe_protocol = "";
1412 string pipe_options = model.substr(5);
1413 string::size_type begin, end;
1416 end = pipe_options.find( ",", begin );
1417 if ( end != string::npos ) {
1418 pipe_path = pipe_options.substr(begin, end - begin);
1421 // protocol (last option)
1422 pipe_protocol = pipe_options.substr(begin);
1423 cur_fdm_state = new FGExternalPipe( dt, pipe_path, pipe_protocol );
1424 } else if ( model == "null" ) {
1425 cur_fdm_state = new FGNullFDM( dt );
1426 } else if ( model == "yasim" ) {
1427 cur_fdm_state = new YASim( dt );
1429 throw sg_throwable(string("Unrecognized flight model '") + model
1430 + "', cannot init flight dynamics model.");
1434 // Initialize view parameters
1436 // force update of model so that viewer can get some data...
1437 globals->get_aircraft_model()->update(0);
1438 // run update for current view so that data is current...
1439 globals->get_viewmgr()->update(0);
1443 SGTime *fgInitTime() {
1445 static const SGPropertyNode *longitude
1446 = fgGetNode("/position/longitude-deg");
1447 static const SGPropertyNode *latitude
1448 = fgGetNode("/position/latitude-deg");
1449 static const SGPropertyNode *cur_time_override
1450 = fgGetNode("/sim/time/cur-time-override", true);
1452 SGPath zone( globals->get_fg_root() );
1453 zone.append( "Timezone" );
1454 SGTime *t = new SGTime( longitude->getDoubleValue()
1455 * SGD_DEGREES_TO_RADIANS,
1456 latitude->getDoubleValue()
1457 * SGD_DEGREES_TO_RADIANS,
1459 cur_time_override->getLongValue() );
1461 globals->set_warp_delta( 0 );
1463 t->update( 0.0, 0.0,
1464 cur_time_override->getLongValue(),
1465 globals->get_warp() );
1471 // set up a time offset (aka warp) if one is specified
1472 void fgInitTimeOffset() {
1473 static const SGPropertyNode *longitude
1474 = fgGetNode("/position/longitude-deg");
1475 static const SGPropertyNode *latitude
1476 = fgGetNode("/position/latitude-deg");
1477 static const SGPropertyNode *cur_time_override
1478 = fgGetNode("/sim/time/cur-time-override", true);
1480 // Handle potential user specified time offsets
1481 int orig_warp = globals->get_warp();
1482 SGTime *t = globals->get_time_params();
1483 time_t cur_time = t->get_cur_time();
1484 time_t currGMT = sgTimeGetGMT( gmtime(&cur_time) );
1485 time_t systemLocalTime = sgTimeGetGMT( localtime(&cur_time) );
1486 time_t aircraftLocalTime =
1487 sgTimeGetGMT( fgLocaltime(&cur_time, t->get_zonename() ) );
1489 // Okay, we now have several possible scenarios
1490 int offset = fgGetInt("/sim/startup/time-offset");
1491 string offset_type = fgGetString("/sim/startup/time-offset-type");
1494 if ( offset_type == "real" ) {
1496 } else if ( offset_type == "dawn" ) {
1497 warp = fgTimeSecondsUntilSunAngle( cur_time,
1498 longitude->getDoubleValue()
1499 * SGD_DEGREES_TO_RADIANS,
1500 latitude->getDoubleValue()
1501 * SGD_DEGREES_TO_RADIANS,
1503 } else if ( offset_type == "morning" ) {
1504 warp = fgTimeSecondsUntilSunAngle( cur_time,
1505 longitude->getDoubleValue()
1506 * SGD_DEGREES_TO_RADIANS,
1507 latitude->getDoubleValue()
1508 * SGD_DEGREES_TO_RADIANS,
1510 } else if ( offset_type == "noon" ) {
1511 warp = fgTimeSecondsUntilSunAngle( cur_time,
1512 longitude->getDoubleValue()
1513 * SGD_DEGREES_TO_RADIANS,
1514 latitude->getDoubleValue()
1515 * SGD_DEGREES_TO_RADIANS,
1517 } else if ( offset_type == "afternoon" ) {
1518 warp = fgTimeSecondsUntilSunAngle( cur_time,
1519 longitude->getDoubleValue()
1520 * SGD_DEGREES_TO_RADIANS,
1521 latitude->getDoubleValue()
1522 * SGD_DEGREES_TO_RADIANS,
1524 } else if ( offset_type == "dusk" ) {
1525 warp = fgTimeSecondsUntilSunAngle( cur_time,
1526 longitude->getDoubleValue()
1527 * SGD_DEGREES_TO_RADIANS,
1528 latitude->getDoubleValue()
1529 * SGD_DEGREES_TO_RADIANS,
1531 } else if ( offset_type == "evening" ) {
1532 warp = fgTimeSecondsUntilSunAngle( cur_time,
1533 longitude->getDoubleValue()
1534 * SGD_DEGREES_TO_RADIANS,
1535 latitude->getDoubleValue()
1536 * SGD_DEGREES_TO_RADIANS,
1538 } else if ( offset_type == "midnight" ) {
1539 warp = fgTimeSecondsUntilSunAngle( cur_time,
1540 longitude->getDoubleValue()
1541 * SGD_DEGREES_TO_RADIANS,
1542 latitude->getDoubleValue()
1543 * SGD_DEGREES_TO_RADIANS,
1545 } else if ( offset_type == "system-offset" ) {
1548 } else if ( offset_type == "gmt-offset" ) {
1549 warp = offset - (currGMT - systemLocalTime);
1551 } else if ( offset_type == "latitude-offset" ) {
1552 warp = offset - (aircraftLocalTime - systemLocalTime);
1554 } else if ( offset_type == "system" ) {
1555 warp = offset - (systemLocalTime - currGMT) - cur_time;
1556 } else if ( offset_type == "gmt" ) {
1557 warp = offset - cur_time;
1558 } else if ( offset_type == "latitude" ) {
1559 warp = offset - (aircraftLocalTime - currGMT)- cur_time;
1561 SG_LOG( SG_GENERAL, SG_ALERT,
1562 "FG_TIME::Unsupported offset type " << offset_type );
1565 globals->set_warp( orig_warp + warp );
1566 t->update( longitude->getDoubleValue() * SGD_DEGREES_TO_RADIANS,
1567 latitude->getDoubleValue() * SGD_DEGREES_TO_RADIANS,
1568 cur_time_override->getLongValue(),
1569 globals->get_warp() );
1571 SG_LOG( SG_GENERAL, SG_INFO, "After fgInitTimeOffset(): warp = "
1572 << globals->get_warp() );
1576 // This is the top level init routine which calls all the other
1577 // initialization routines. If you are adding a subsystem to flight
1578 // gear, its initialization call should located in this routine.
1579 // Returns non-zero if a problem encountered.
1580 bool fgInitSubsystems() {
1581 // static const SGPropertyNode *longitude
1582 // = fgGetNode("/sim/presets/longitude-deg");
1583 // static const SGPropertyNode *latitude
1584 // = fgGetNode("/sim/presets/latitude-deg");
1585 // static const SGPropertyNode *altitude
1586 // = fgGetNode("/sim/presets/altitude-ft");
1587 SG_LOG( SG_GENERAL, SG_INFO, "Initialize Subsystems");
1588 SG_LOG( SG_GENERAL, SG_INFO, "========== ==========");
1590 ////////////////////////////////////////////////////////////////////
1591 // Initialize the event manager subsystem.
1592 ////////////////////////////////////////////////////////////////////
1594 globals->get_event_mgr()->init();
1595 globals->get_event_mgr()->setRealtimeProperty(fgGetNode("/sim/time/delta-realtime-sec", true));
1597 ////////////////////////////////////////////////////////////////////
1598 // Initialize the property interpolator subsystem. Put into the INIT
1599 // group because the "nasal" subsystem may need it at GENERAL take-down.
1600 ////////////////////////////////////////////////////////////////////
1601 globals->add_subsystem("interpolator", new SGInterpolator, SGSubsystemMgr::INIT);
1604 ////////////////////////////////////////////////////////////////////
1605 // Add the FlightGear property utilities.
1606 ////////////////////////////////////////////////////////////////////
1607 globals->add_subsystem("properties", new FGProperties);
1609 ////////////////////////////////////////////////////////////////////
1610 // Initialize the material property subsystem.
1611 ////////////////////////////////////////////////////////////////////
1613 SGPath mpath( globals->get_fg_root() );
1614 mpath.append( "materials.xml" );
1615 string season = fgGetString("/sim/startup/season", "summer");
1616 if ( ! globals->get_matlib()->load(globals->get_fg_root(), mpath.str(), season.c_str()) ) {
1617 SG_LOG( SG_GENERAL, SG_ALERT, "Error loading material lib!" );
1622 ////////////////////////////////////////////////////////////////////
1623 // Initialize the scenery management subsystem.
1624 ////////////////////////////////////////////////////////////////////
1626 if ( globals->get_tile_mgr()->init() ) {
1627 // Load the local scenery data
1628 double visibility_meters = fgGetDouble("/environment/visibility-m");
1630 globals->get_tile_mgr()->update( visibility_meters );
1632 SG_LOG( SG_GENERAL, SG_ALERT, "Error in Tile Manager initialization!" );
1636 ////////////////////////////////////////////////////////////////////
1637 // Initialize the flight model subsystem.
1638 ////////////////////////////////////////////////////////////////////
1642 // allocates structures so must happen before any of the flight
1643 // model or control parameters are set
1644 fgAircraftInit(); // In the future this might not be the case.
1647 ////////////////////////////////////////////////////////////////////
1648 // Initialize the weather subsystem.
1649 ////////////////////////////////////////////////////////////////////
1651 // Initialize the weather modeling subsystem
1652 globals->add_subsystem("environment", new FGEnvironmentMgr);
1655 ////////////////////////////////////////////////////////////////////
1656 // Initialize the aircraft systems and instrumentation (before the
1658 ////////////////////////////////////////////////////////////////////
1660 globals->add_subsystem("instrumentation", new FGInstrumentMgr);
1661 globals->add_subsystem("systems", new FGSystemMgr);
1663 ////////////////////////////////////////////////////////////////////
1664 // Initialize the XML Autopilot subsystem.
1665 ////////////////////////////////////////////////////////////////////
1667 globals->add_subsystem( "xml-autopilot", new FGXMLAutopilot );
1668 globals->add_subsystem( "route-manager", new FGRouteMgr );
1671 ////////////////////////////////////////////////////////////////////
1672 // Initialize the view manager subsystem.
1673 ////////////////////////////////////////////////////////////////////
1677 ////////////////////////////////////////////////////////////////////
1678 // Create and register the logger.
1679 ////////////////////////////////////////////////////////////////////
1681 globals->add_subsystem("logger", new FGLogger);
1683 ////////////////////////////////////////////////////////////////////
1684 // Create and register the XML GUI.
1685 ////////////////////////////////////////////////////////////////////
1687 globals->add_subsystem("gui", new NewGUI, SGSubsystemMgr::INIT);
1690 ////////////////////////////////////////////////////////////////////
1691 // Initialize the local time subsystem.
1692 ////////////////////////////////////////////////////////////////////
1694 // update the current timezone each 30 minutes
1695 globals->get_event_mgr()->addTask( "fgUpdateLocalTime()",
1696 &fgUpdateLocalTime, 30*60 );
1697 fgInitTimeOffset(); // the environment subsystem needs this
1700 ////////////////////////////////////////////////////////////////////
1701 // Initialize the lighting subsystem.
1702 ////////////////////////////////////////////////////////////////////
1704 globals->add_subsystem("lighting", new FGLight);
1706 //////////////////////////////////////////////////////////////////////
1707 // Initialize the 2D cloud subsystem.
1708 ////////////////////////////////////////////////////////////////////
1709 fgGetBool("/sim/rendering/bump-mapping", false);
1711 #ifdef ENABLE_AUDIO_SUPPORT
1712 ////////////////////////////////////////////////////////////////////
1713 // Initialize the sound subsystem.
1714 ////////////////////////////////////////////////////////////////////
1716 init_volume = fgGetFloat("/sim/sound/volume");
1717 fgSetFloat("/sim/sound/volume", 0.0f);
1718 globals->set_soundmgr(new SGSoundMgr);
1719 globals->get_soundmgr()->init();
1720 globals->get_soundmgr()->bind();
1723 ////////////////////////////////////////////////////////////////////
1724 // Initialize the sound-effects subsystem.
1725 ////////////////////////////////////////////////////////////////////
1727 globals->add_subsystem("fx", new FGFX);
1728 globals->add_subsystem("voice", new FGVoiceMgr);
1731 ////////////////////////////////////////////////////////////////////
1732 // Initialise the ATC Manager
1733 ////////////////////////////////////////////////////////////////////
1735 SG_LOG(SG_GENERAL, SG_INFO, " ATC Manager");
1736 globals->set_ATC_mgr(new FGATCMgr);
1737 globals->get_ATC_mgr()->init();
1739 ////////////////////////////////////////////////////////////////////
1740 // Initialise the AI Manager
1741 ////////////////////////////////////////////////////////////////////
1743 SG_LOG(SG_GENERAL, SG_INFO, " AI Manager");
1744 globals->set_AI_mgr(new FGAIMgr);
1745 globals->get_AI_mgr()->init();
1747 ////////////////////////////////////////////////////////////////////
1748 // Initialise the AI Model Manager
1749 ////////////////////////////////////////////////////////////////////
1750 SG_LOG(SG_GENERAL, SG_INFO, " AI Model Manager");
1751 globals->add_subsystem("ai_model", new FGAIManager);
1752 globals->add_subsystem("submodel_mgr", new FGSubmodelMgr);
1755 // It's probably a good idea to initialize the top level traffic manager
1756 // After the AI and ATC systems have been initialized properly.
1757 // AI Traffic manager
1758 globals->add_subsystem("Traffic Manager", new FGTrafficManager);
1761 ////////////////////////////////////////////////////////////////////
1762 // Initialize the cockpit subsystem
1763 ////////////////////////////////////////////////////////////////////
1764 if( fgCockpitInit( ¤t_aircraft )) {
1765 // Cockpit initialized ok.
1767 SG_LOG( SG_GENERAL, SG_ALERT, "Error in Cockpit initialization!" );
1772 ////////////////////////////////////////////////////////////////////
1773 // Initialize I/O subsystem.
1774 ////////////////////////////////////////////////////////////////////
1776 globals->get_io()->init();
1777 globals->get_io()->bind();
1780 ////////////////////////////////////////////////////////////////////
1781 // Add a new 2D panel.
1782 ////////////////////////////////////////////////////////////////////
1784 string panel_path = fgGetString("/sim/panel/path",
1785 "Panels/Default/default.xml");
1787 globals->set_current_panel( fgReadPanel(panel_path) );
1788 if (globals->get_current_panel() == 0) {
1789 SG_LOG( SG_INPUT, SG_ALERT,
1790 "Error reading new panel from " << panel_path );
1792 SG_LOG( SG_INPUT, SG_INFO, "Loaded new panel from " << panel_path );
1793 globals->get_current_panel()->init();
1794 globals->get_current_panel()->bind();
1798 ////////////////////////////////////////////////////////////////////
1799 // Initialize the controls subsystem.
1800 ////////////////////////////////////////////////////////////////////
1802 globals->get_controls()->init();
1803 globals->get_controls()->bind();
1806 ////////////////////////////////////////////////////////////////////
1807 // Initialize the input subsystem.
1808 ////////////////////////////////////////////////////////////////////
1810 globals->add_subsystem("input", new FGInput);
1813 ////////////////////////////////////////////////////////////////////
1814 // Initialize the replay subsystem
1815 ////////////////////////////////////////////////////////////////////
1816 globals->add_subsystem("replay", new FGReplay);
1818 ////////////////////////////////////////////////////////////////////
1819 // Bind and initialize subsystems.
1820 ////////////////////////////////////////////////////////////////////
1822 globals->get_subsystem_mgr()->bind();
1823 globals->get_subsystem_mgr()->init();
1825 ////////////////////////////////////////////////////////////////////
1826 // Initialize multiplayer subsystem
1827 ////////////////////////////////////////////////////////////////////
1829 globals->set_multiplayer_mgr(new FGMultiplayMgr);
1830 globals->get_multiplayer_mgr()->init();
1832 ////////////////////////////////////////////////////////////////////////
1833 // Initialize the Nasal interpreter.
1834 // Do this last, so that the loaded scripts see initialized state
1835 ////////////////////////////////////////////////////////////////////////
1836 FGNasalSys* nasal = new FGNasalSys();
1837 globals->add_subsystem("nasal", nasal, SGSubsystemMgr::INIT);
1840 // initialize methods that depend on other subsystems.
1841 globals->get_subsystem_mgr()->postinit();
1843 ////////////////////////////////////////////////////////////////////////
1844 // End of subsystem initialization.
1845 ////////////////////////////////////////////////////////////////////
1847 SG_LOG( SG_GENERAL, SG_INFO, endl);
1849 // Save the initial state for future
1851 globals->saveInitialState();
1857 void fgReInitSubsystems()
1859 // static const SGPropertyNode *longitude
1860 // = fgGetNode("/sim/presets/longitude-deg");
1861 // static const SGPropertyNode *latitude
1862 // = fgGetNode("/sim/presets/latitude-deg");
1863 static const SGPropertyNode *altitude
1864 = fgGetNode("/sim/presets/altitude-ft");
1865 static const SGPropertyNode *master_freeze
1866 = fgGetNode("/sim/freeze/master");
1868 SG_LOG( SG_GENERAL, SG_INFO,
1869 "fgReInitSubsystems(): /position/altitude = "
1870 << altitude->getDoubleValue() );
1872 bool freeze = master_freeze->getBoolValue();
1874 fgSetBool("/sim/freeze/master", true);
1876 fgSetBool("/sim/crashed", false);
1878 // Force reupdating the positions of the ai 3d models. They are used for
1879 // initializing ground level for the FDM.
1880 globals->get_subsystem("ai_model")->reinit();
1882 // Initialize the FDM
1885 // allocates structures so must happen before any of the flight
1886 // model or control parameters are set
1887 fgAircraftInit(); // In the future this might not be the case.
1889 // reload offsets from config defaults
1890 globals->get_viewmgr()->reinit();
1894 globals->get_controls()->reset_all();
1896 fgUpdateLocalTime();
1898 // re-init to proper time of day setting
1902 fgSetBool("/sim/freeze/master", false);
1904 fgSetBool("/sim/sceneryloaded",false);