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/scene/model/particles.hxx>
66 #include <simgear/timing/sg_time.hxx>
67 #include <simgear/timing/lowleveltime.h>
69 #include <Aircraft/aircraft.hxx>
70 #include <Aircraft/replay.hxx>
71 #include <Airports/apt_loader.hxx>
72 #include <Airports/runways.hxx>
73 #include <Airports/simple.hxx>
74 #include <AIModel/AIManager.hxx>
75 #include <ATCDCL/ATCmgr.hxx>
76 #include <ATCDCL/AIMgr.hxx>
77 #include <Autopilot/route_mgr.hxx>
78 #include <Autopilot/xmlauto.hxx>
79 #include <Cockpit/cockpit.hxx>
80 #include <Cockpit/panel.hxx>
81 #include <Cockpit/panel_io.hxx>
83 #include <FDM/SP/ADA.hxx>
84 #include <FDM/SP/ACMS.hxx>
86 #include <FDM/Balloon.h>
87 #include <FDM/ExternalNet/ExternalNet.hxx>
88 #include <FDM/ExternalPipe/ExternalPipe.hxx>
89 #include <FDM/JSBSim/JSBSim.hxx>
90 #include <FDM/LaRCsim/LaRCsim.hxx>
91 #include <FDM/MagicCarpet.hxx>
92 #include <FDM/UFO.hxx>
93 #include <FDM/NullFDM.hxx>
94 #include <FDM/YASim/YASim.hxx>
95 #include <GUI/new_gui.hxx>
96 #include <Include/general.hxx>
97 #include <Input/input.hxx>
98 #include <Instrumentation/instrument_mgr.hxx>
99 #include <Model/acmodel.hxx>
100 #include <AIModel/submodel.hxx>
101 #include <AIModel/AIManager.hxx>
102 #include <Navaids/navdb.hxx>
103 #include <Navaids/navlist.hxx>
104 #include <Scenery/scenery.hxx>
105 #include <Scenery/tilemgr.hxx>
106 #include <Scripting/NasalSys.hxx>
107 #include <Sound/fg_fx.hxx>
108 #include <Sound/beacon.hxx>
109 #include <Sound/morse.hxx>
110 #include <Sound/voice.hxx>
111 #include <Systems/system_mgr.hxx>
112 #include <Time/light.hxx>
113 #include <Time/sunsolver.hxx>
114 #include <Time/tmp.hxx>
115 #include <Traffic/TrafficMgr.hxx>
116 #include <MultiPlayer/multiplaymgr.hxx>
118 #include <Environment/environment_mgr.hxx>
120 #include "fg_init.hxx"
122 #include "fg_commands.hxx"
123 #include "fg_props.hxx"
124 #include "options.hxx"
125 #include "globals.hxx"
126 #include "logger.hxx"
127 #include "renderer.hxx"
128 #include "viewmgr.hxx"
131 #if defined(FX) && defined(XMESA)
132 #include <GL/xmesa.h>
135 SG_USING_STD(string);
139 extern const char *default_root;
143 // Scan the command line options for the specified option and return
145 static string fgScanForOption( const string& option, int argc, char **argv ) {
148 if (hostname == NULL)
151 gethostname(_hostname, 256);
152 hostname = strdup(_hostname);
153 free_hostname = true;
156 SG_LOG(SG_GENERAL, SG_INFO, "Scanning command line for: " << option );
158 int len = option.length();
161 SG_LOG( SG_GENERAL, SG_DEBUG, "argv[" << i << "] = " << argv[i] );
163 string arg = argv[i];
164 if ( arg.find( option ) == 0 ) {
165 return arg.substr( len );
175 // Scan the user config files for the specified option and return
177 static string fgScanForOption( const string& option, const string& path ) {
178 sg_gzifstream in( path );
179 if ( !in.is_open() ) {
183 SG_LOG( SG_GENERAL, SG_INFO, "Scanning " << path << " for: " << option );
185 int len = option.length();
188 while ( ! in.eof() ) {
190 getline( in, line, '\n' );
192 // catch extraneous (DOS) line ending character
193 if ( line[line.length() - 1] < 32 ) {
194 line = line.substr( 0, line.length()-1 );
197 if ( line.find( option ) == 0 ) {
198 return line.substr( len );
207 // Scan the user config files for the specified option and return
209 static string fgScanForOption( const string& option ) {
212 #if defined( unix ) || defined( __CYGWIN__ )
213 // Next check home directory for .fgfsrc.hostname file
215 if ( homedir != NULL ) {
216 SGPath config( homedir );
217 config.append( ".fgfsrc" );
218 config.concat( "." );
219 config.concat( hostname );
220 arg = fgScanForOption( option, config.str() );
225 // Next check home directory for .fgfsrc file
227 if ( homedir != NULL ) {
228 SGPath config( homedir );
229 config.append( ".fgfsrc" );
230 arg = fgScanForOption( option, config.str() );
235 // Check for $fg_root/system.fgfsrc
236 SGPath config( globals->get_fg_root() );
237 config.append( "system.fgfsrc" );
238 arg = fgScanForOption( option, config.str() );
245 // Read in configuration (files and command line options) but only set
247 bool fgInitFGRoot ( int argc, char **argv ) {
250 // First parse command line options looking for --fg-root=, this
251 // will override anything specified in a config file
252 root = fgScanForOption( "--fg-root=", argc, argv);
254 // Check in one of the user configuration files.
256 root = fgScanForOption( "--fg-root=" );
258 // Next check if fg-root is set as an env variable
259 if ( root.empty() ) {
260 char *envp = ::getenv( "FG_ROOT" );
261 if ( envp != NULL ) {
266 // Otherwise, default to a random compiled-in location if we can't
267 // find fg-root any other way.
268 if ( root.empty() ) {
269 #if defined( __CYGWIN__ )
270 root = "/FlightGear";
271 #elif defined( WIN32 )
272 root = "\\FlightGear";
273 #elif defined(OSX_BUNDLE)
274 /* the following code looks for the base package directly inside
275 the application bundle. This can be changed fairly easily by
276 fiddling with the code below. And yes, I know it's ugly and verbose.
278 CFBundleRef appBundle = CFBundleGetMainBundle();
279 CFURLRef appUrl = CFBundleCopyBundleURL(appBundle);
280 CFRelease(appBundle);
282 // look for a 'data' subdir directly inside the bundle : is there
283 // a better place? maybe in Resources? I don't know ...
284 CFURLRef dataDir = CFURLCreateCopyAppendingPathComponent(NULL, appUrl, CFSTR("data"), true);
286 // now convert down to a path, and the a c-string
287 CFStringRef path = CFURLCopyFileSystemPath(dataDir, kCFURLPOSIXPathStyle);
288 root = CFStringGetCStringPtr(path, CFStringGetSystemEncoding());
291 CFRelease(appBundle);
299 SG_LOG(SG_INPUT, SG_INFO, "fg_root = " << root );
300 globals->set_fg_root(root);
306 // Read in configuration (files and command line options) but only set
308 bool fgInitFGAircraft ( int argc, char **argv ) {
311 // First parse command line options looking for --aircraft=, this
312 // will override anything specified in a config file
313 aircraft = fgScanForOption( "--aircraft=", argc, argv );
314 if ( aircraft.empty() ) {
315 // check synonym option
316 aircraft = fgScanForOption( "--vehicle=", argc, argv );
319 // Check in one of the user configuration files.
320 if ( aircraft.empty() ) {
321 aircraft = fgScanForOption( "--aircraft=" );
323 if ( aircraft.empty() ) {
324 aircraft = fgScanForOption( "--vehicle=" );
327 // if an aircraft was specified, set the property name
328 if ( !aircraft.empty() ) {
329 SG_LOG(SG_INPUT, SG_INFO, "aircraft = " << aircraft );
330 fgSetString("/sim/aircraft", aircraft.c_str() );
332 SG_LOG(SG_INPUT, SG_INFO, "No user specified aircraft, using default" );
339 // Return the current base package version
340 string fgBasePackageVersion() {
341 SGPath base_path( globals->get_fg_root() );
342 base_path.append("version");
344 sg_gzifstream in( base_path.str() );
345 if ( !in.is_open() ) {
346 SGPath old_path( globals->get_fg_root() );
347 old_path.append( "Thanks" );
348 sg_gzifstream old( old_path.str() );
349 if ( !old.is_open() ) {
352 return "[old version]";
363 // Initialize the localization
364 SGPropertyNode *fgInitLocale(const char *language) {
365 SGPropertyNode *c_node = NULL, *d_node = NULL;
366 SGPropertyNode *intl = fgGetNode("/sim/intl");
368 SG_LOG(SG_GENERAL, SG_INFO, "Selecting language: " << language );
370 // localization not defined
375 // Select the proper language from the list
377 vector<SGPropertyNode_ptr> locale = intl->getChildren("locale");
378 for (unsigned int i = 0; i < locale.size(); i++) {
380 vector<SGPropertyNode_ptr> lang = locale[i]->getChildren("lang");
381 for (unsigned int j = 0; j < lang.size(); j++) {
383 if (!strcmp(lang[j]->getStringValue(), language)) {
392 d_node = intl->getChild("locale");
396 // Check for localized font
397 SGPropertyNode *font_n = c_node->getNode("font", true);
398 if ( !strcmp(font_n->getStringValue(), "") )
399 font_n->setStringValue(d_node->getStringValue("font", "typewriter.txf"));
403 // Load the default strings
405 SGPath d_path( globals->get_fg_root() );
407 const char *d_path_str = d_node->getStringValue("strings");
409 SG_LOG(SG_GENERAL, SG_ALERT, "No path in " << d_node->getPath() << "/strings.");
413 d_path.append(d_path_str);
414 SG_LOG(SG_GENERAL, SG_INFO, "Reading localized strings from " << d_path.str());
416 SGPropertyNode *strings = c_node->getNode("strings");
418 readProperties(d_path.str(), strings);
419 } catch (const sg_exception &e) {
420 SG_LOG(SG_GENERAL, SG_ALERT, "Unable to read the localized strings");
425 // Load the language specific strings
427 if (c_node != d_node) {
428 SGPath c_path( globals->get_fg_root() );
430 const char *c_path_str = c_node->getStringValue("strings");
432 SG_LOG(SG_GENERAL, SG_ALERT, "No path in " << c_node->getPath() << "/strings");
436 c_path.append(c_path_str);
437 SG_LOG(SG_GENERAL, SG_INFO, "Reading localized strings from " << c_path.str());
440 readProperties(c_path.str(), strings);
441 } catch (const sg_exception &e) {
442 SG_LOG(SG_GENERAL, SG_ALERT,
443 "Unable to read the localized strings from " << c_path.str());
453 // Initialize the localization routines
454 bool fgDetectLanguage() {
455 const char *language = ::getenv("LANG");
457 if (language == NULL) {
458 SG_LOG(SG_GENERAL, SG_INFO, "Unable to detect the language" );
462 SGPropertyNode *locale = fgInitLocale(language);
464 SG_LOG(SG_GENERAL, SG_ALERT,
465 "No internationalization settings specified in preferences.xml" );
470 globals->set_locale( locale );
475 // Attempt to locate and parse the various non-XML config files in order
476 // from least precidence to greatest precidence
478 do_options (int argc, char ** argv)
480 // Check for $fg_root/system.fgfsrc
481 SGPath config( globals->get_fg_root() );
482 config.append( "system.fgfsrc" );
483 fgParseOptions(config.str());
485 #if defined( unix ) || defined( __CYGWIN__ )
486 config.concat( "." );
487 config.concat( hostname );
488 fgParseOptions(config.str());
491 // Check for ~/.fgfsrc
492 if ( homedir != NULL ) {
493 config.set( homedir );
494 config.append( ".fgfsrc" );
495 fgParseOptions(config.str());
498 #if defined( unix ) || defined( __CYGWIN__ )
499 // Check for ~/.fgfsrc.hostname
500 config.concat( "." );
501 config.concat( hostname );
502 fgParseOptions(config.str());
505 // Parse remaining command line options
506 // These will override anything specified in a config file
507 fgParseArgs(argc, argv);
511 static string fgFindAircraftPath( const SGPath &path, const string &aircraft,
512 SGPropertyNode *cache, int depth = 0 )
514 const int MAXDEPTH = 1;
517 ulDir *dirp = ulOpenDir(path.str().c_str());
519 cerr << "Unable to open aircraft directory '" << path.str() << '\'' << endl;
524 while ((dire = ulReadDir(dirp)) != NULL) {
526 if (depth > MAXDEPTH)
529 if (!strcmp("CVS", dire->d_name) || !strcmp(".", dire->d_name)
530 || !strcmp("..", dire->d_name) || !strcmp("AI", dire->d_name))
534 next.append(dire->d_name);
536 result = fgFindAircraftPath( next, aircraft, cache, depth + 1 );
537 if ( ! result.empty() )
541 int len = strlen(dire->d_name);
542 if (len < 9 || strcmp(dire->d_name + len - 8, "-set.xml"))
548 if (!cache->getChild("aircraft", i++, false))
551 SGPropertyNode *n, *entry = cache->getChild("aircraft", --i, true);
553 n = entry->getNode("file", true);
554 n->setStringValue(dire->d_name);
555 n->setAttribute(SGPropertyNode::USERARCHIVE, true);
557 n = entry->getNode("path", true);
558 n->setStringValue(path.str().c_str());
559 n->setAttribute(SGPropertyNode::USERARCHIVE, true);
561 if ( !strcmp(dire->d_name, aircraft.c_str()) ) {
573 // Read in configuration (file and command line)
574 bool fgInitConfig ( int argc, char **argv ) {
576 // First, set some sane default values
579 // Read global preferences from $FG_ROOT/preferences.xml
580 SG_LOG(SG_INPUT, SG_INFO, "Reading global preferences");
581 fgLoadProps("preferences.xml", globals->get_props());
582 SG_LOG(SG_INPUT, SG_INFO, "Finished Reading global preferences");
584 // Detect the required language as early as possible
585 if ( !fgDetectLanguage() ) {
589 SGPropertyNode autosave;
591 char *envp = ::getenv( "APPDATA" );
593 SGPath config( envp );
594 config.append( "flightgear.org" );
596 if ( homedir != NULL ) {
597 SGPath config( homedir );
598 config.append( ".fgfs" );
600 const char *fg_home = getenv("FG_HOME");
604 // Set /sim/fg-home and don't allow malign code to override it until
605 // Nasal security is set up. Use FG_HOME if necessary.
606 SGPropertyNode *home = fgGetNode("/sim", true);
607 home->removeChild("fg-home", 0, false);
608 home = home->getChild("fg-home", 0, true);
609 home->setStringValue(config.c_str());
610 home->setAttribute(SGPropertyNode::WRITE, false);
612 config.append( "autosave.xml" );
613 SG_LOG(SG_INPUT, SG_INFO, "Reading user settings from " << config.str());
615 readProperties(config.str(), &autosave, SGPropertyNode::USERARCHIVE);
617 SG_LOG(SG_INPUT, SG_DEBUG, "First time reading user settings");
619 SG_LOG(SG_INPUT, SG_DEBUG, "Finished Reading user settings");
621 SGPropertyNode *cache_root = autosave.getNode("sim/startup/path-cache", true);
624 // Scan user config files and command line for a specified aircraft.
625 fgInitFGAircraft(argc, argv);
627 string aircraft = fgGetString( "/sim/aircraft", "" );
628 if ( aircraft.size() > 0 ) {
629 SGPath aircraft_search( globals->get_fg_root() );
630 aircraft_search.append( "Aircraft" );
632 string aircraft_set = aircraft + "-set.xml";
635 // check if the *-set.xml file is already in the cache
636 if (globals->get_fg_root() == cache_root->getStringValue("fg-root", "")) {
637 vector<SGPropertyNode_ptr> cache = cache_root->getChildren("aircraft");
638 for (unsigned int i = 0; i < cache.size(); i++) {
639 const char *name = cache[i]->getStringValue("file", "");
640 if (aircraft_set == name) {
641 const char *path = cache[i]->getStringValue("path", "");
651 if (result.empty()) {
652 // prepare cache for rescan
653 SGPropertyNode *n = cache_root->getNode("fg-root", true);
654 n->setStringValue(globals->get_fg_root().c_str());
655 n->setAttribute(SGPropertyNode::USERARCHIVE, true);
656 cache_root->removeChildren("aircraft");
658 result = fgFindAircraftPath( aircraft_search, aircraft_set, cache_root );
661 if ( !result.empty() ) {
662 fgSetString( "/sim/aircraft-dir", result.c_str() );
663 SGPath full_name( result );
664 full_name.append( aircraft_set );
666 SG_LOG(SG_INPUT, SG_INFO, "Reading default aircraft: " << aircraft
667 << " from " << full_name.str());
669 readProperties( full_name.str(), globals->get_props() );
670 } catch ( const sg_exception &e ) {
671 string message = "Error reading default aircraft: ";
672 message += e.getFormattedMessage();
673 SG_LOG(SG_INPUT, SG_ALERT, message);
677 SG_LOG( SG_INPUT, SG_ALERT, "Cannot find specified aircraft: "
683 SG_LOG( SG_INPUT, SG_ALERT, "No default aircraft specified" );
686 copyProperties(&autosave, globals->get_props());
688 // parse options after loading aircraft to ensure any user
689 // overrides of defaults are honored.
690 do_options(argc, argv);
701 // This function is never used, but maybe useful in the future ???
704 // Preset lon/lat given an airport id
705 static bool fgSetPosFromAirportID( const string& id ) {
709 SG_LOG( SG_GENERAL, SG_INFO,
710 "Attempting to set starting position from airport code " << id );
712 if ( fgFindAirportID( id, &a ) ) {
714 fgSetDouble("/sim/presets/longitude-deg", a->longitude );
715 fgSetDouble("/sim/presets/latitude-deg", a->latitude );
717 // other code depends on the actual postition being set so set
719 fgSetDouble("/position/longitude-deg", a->longitude );
720 fgSetDouble("/position/latitude-deg", a->latitude );
722 SG_LOG( SG_GENERAL, SG_INFO,
723 "Position for " << id << " is (" << a->longitude
724 << ", " << a->latitude << ")" );
734 // Set current tower position lon/lat given an airport id
735 static bool fgSetTowerPosFromAirportID( const string& id) {
736 const FGAirport *a = fgFindAirportID( id);
738 SGGeod tower = a->getTowerLocation();
739 fgSetDouble("/sim/tower/longitude-deg", tower.getLongitudeDeg());
740 fgSetDouble("/sim/tower/latitude-deg", tower.getLatitudeDeg());
741 fgSetDouble("/sim/tower/altitude-ft", tower.getElevationFt());
749 struct FGTowerLocationListener : SGPropertyChangeListener {
750 void valueChanged(SGPropertyNode* node) {
751 const string id(node->getStringValue());
752 fgSetTowerPosFromAirportID(id);
756 void fgInitTowerLocationListener() {
757 fgGetNode("/sim/tower/airport-id", true)
758 ->addChangeListener( new FGTowerLocationListener(), true );
761 // Set current_options lon/lat given an airport id and heading (degrees)
762 static bool fgSetPosFromAirportIDandHdg( const string& id, double tgt_hdg ) {
768 // set initial position from runway and heading
769 SG_LOG( SG_GENERAL, SG_INFO,
770 "Attempting to set starting position from airport code "
771 << id << " heading " << tgt_hdg );
773 if ( ! globals->get_runways()->search( id, (int)tgt_hdg, &r ) ) {
774 SG_LOG( SG_GENERAL, SG_ALERT,
775 "Failed to find a good runway for " << id << '\n' );
778 fgSetString("/sim/atc/runway", r._rwy_no.c_str());
780 double lat2, lon2, az2;
781 double heading = r._heading;
782 double azimuth = heading + 180.0;
783 while ( azimuth >= 360.0 ) { azimuth -= 360.0; }
785 SG_LOG( SG_GENERAL, SG_INFO,
786 "runway = " << r._lon << ", " << r._lat
787 << " length = " << r._length * SG_FEET_TO_METER
788 << " heading = " << azimuth );
790 geo_direct_wgs_84 ( 0, r._lat, r._lon, azimuth, r._length * SG_FEET_TO_METER * 0.5
791 - fgGetDouble("/sim/airport/runways/start-offset-m", 5.0),
792 &lat2, &lon2, &az2 );
794 if ( fabs( fgGetDouble("/sim/presets/offset-distance-nm") ) > SG_EPSILON ) {
796 double odist = fgGetDouble("/sim/presets/offset-distance-nm");
797 odist *= SG_NM_TO_METER;
798 double oaz = azimuth;
799 if ( fabs(fgGetDouble("/sim/presets/offset-azimuth-deg")) > SG_EPSILON ) {
800 oaz = fgGetDouble("/sim/presets/offset-azimuth-deg") + 180;
803 while ( oaz >= 360.0 ) { oaz -= 360.0; }
804 geo_direct_wgs_84 ( 0, lat2, lon2, oaz, odist, &olat, &olon, &az2 );
810 fgSetDouble("/sim/presets/longitude-deg", lon2 );
811 fgSetDouble("/sim/presets/latitude-deg", lat2 );
812 fgSetDouble("/sim/presets/heading-deg", heading );
814 // other code depends on the actual values being set ...
815 fgSetDouble("/position/longitude-deg", lon2 );
816 fgSetDouble("/position/latitude-deg", lat2 );
817 fgSetDouble("/orientation/heading-deg", heading );
819 SG_LOG( SG_GENERAL, SG_INFO,
820 "Position for " << id << " is ("
822 << lat2 << ") new heading is "
828 // Set current_options lon/lat given an airport id and parkig position name
829 static bool fgSetPosFromAirportIDandParkpos( const string& id, const string& parkpos ) {
833 // can't see an easy way around this const_cast at the moment
834 FGAirport* apt = const_cast<FGAirport*>(fgFindAirportID(id));
836 SG_LOG( SG_GENERAL, SG_ALERT,
837 "Failed to find airport " << id );
840 FGAirportDynamics* dcs = apt->getDynamics();
842 SG_LOG( SG_GENERAL, SG_ALERT,
843 "Failed to find parking position " << parkpos <<
844 " at airport " << id );
848 int park_index = dcs->getNrOfParkings() - 1;
849 while (park_index >= 0 && dcs->getParkingName(park_index) != parkpos) park_index--;
850 if (park_index < 0) {
851 SG_LOG( SG_GENERAL, SG_ALERT,
852 "Failed to find parking position " << parkpos <<
853 " at airport " << id );
856 FGParking* parking = dcs->getParking(park_index);
858 double lat = parking->getLatitude();
859 double lon = parking->getLongitude();
860 double hdg = parking->getHeading();
863 fgSetDouble("/sim/presets/longitude-deg", lon );
864 fgSetDouble("/sim/presets/latitude-deg", lat );
865 fgSetDouble("/sim/presets/heading-deg", hdg );
867 // other code depends on the actual values being set ...
868 fgSetDouble("/position/longitude-deg", lon );
869 fgSetDouble("/position/latitude-deg", lat );
870 fgSetDouble("/orientation/heading-deg", hdg );
872 SG_LOG( SG_GENERAL, SG_INFO,
873 "Position for " << id << " is ("
875 << lat << ") new heading is "
882 // Set current_options lon/lat given an airport id and runway number
883 static bool fgSetPosFromAirportIDandRwy( const string& id, const string& rwy, bool rwy_req ) {
889 // set initial position from airport and runway number
890 SG_LOG( SG_GENERAL, SG_INFO,
891 "Attempting to set starting position for "
892 << id << ":" << rwy );
894 if ( ! globals->get_runways()->search( id, rwy, &r ) ) {
895 SG_LOG( SG_GENERAL, rwy_req ? SG_ALERT : SG_INFO,
896 "Failed to find runway " << rwy <<
897 " at airport " << id << ". Using default runway." );
900 fgSetString("/sim/atc/runway", r._rwy_no.c_str());
902 double lat2, lon2, az2;
903 double heading = r._heading;
904 double azimuth = heading + 180.0;
905 while ( azimuth >= 360.0 ) { azimuth -= 360.0; }
907 SG_LOG( SG_GENERAL, SG_INFO,
908 "runway = " << r._lon << ", " << r._lat
909 << " length = " << r._length * SG_FEET_TO_METER
910 << " heading = " << azimuth );
912 geo_direct_wgs_84 ( 0, r._lat, r._lon, azimuth, r._length * SG_FEET_TO_METER * 0.5
913 - fgGetDouble("/sim/airport/runways/start-offset-m", 5.0),
914 &lat2, &lon2, &az2 );
916 if ( fabs( fgGetDouble("/sim/presets/offset-distance-nm") ) > SG_EPSILON )
919 double odist = fgGetDouble("/sim/presets/offset-distance-nm");
920 odist *= SG_NM_TO_METER;
921 double oaz = azimuth;
922 if ( fabs(fgGetDouble("/sim/presets/offset-azimuth-deg")) > SG_EPSILON )
924 oaz = fgGetDouble("/sim/presets/offset-azimuth-deg") + 180;
925 heading = fgGetDouble("/sim/presets/heading-deg");
927 while ( oaz >= 360.0 ) { oaz -= 360.0; }
928 geo_direct_wgs_84 ( 0, lat2, lon2, oaz, odist, &olat, &olon, &az2 );
934 fgSetDouble("/sim/presets/longitude-deg", lon2 );
935 fgSetDouble("/sim/presets/latitude-deg", lat2 );
936 fgSetDouble("/sim/presets/heading-deg", heading );
938 // other code depends on the actual values being set ...
939 fgSetDouble("/position/longitude-deg", lon2 );
940 fgSetDouble("/position/latitude-deg", lat2 );
941 fgSetDouble("/orientation/heading-deg", heading );
943 SG_LOG( SG_GENERAL, SG_INFO,
944 "Position for " << id << " is ("
946 << lat2 << ") new heading is "
953 static void fgSetDistOrAltFromGlideSlope() {
954 // cout << "fgSetDistOrAltFromGlideSlope()" << endl;
955 string apt_id = fgGetString("/sim/presets/airport-id");
956 double gs = fgGetDouble("/sim/presets/glideslope-deg")
957 * SG_DEGREES_TO_RADIANS ;
958 double od = fgGetDouble("/sim/presets/offset-distance-nm");
959 double alt = fgGetDouble("/sim/presets/altitude-ft");
961 double apt_elev = 0.0;
962 if ( ! apt_id.empty() ) {
963 apt_elev = fgGetAirportElev( apt_id );
964 if ( apt_elev < -9990.0 ) {
971 if( fabs(gs) > 0.01 && fabs(od) > 0.1 && alt < -9990 ) {
972 // set altitude from glideslope and offset-distance
973 od *= SG_NM_TO_METER * SG_METER_TO_FEET;
974 alt = fabs(od*tan(gs)) + apt_elev;
975 fgSetDouble("/sim/presets/altitude-ft", alt);
976 fgSetBool("/sim/presets/onground", false);
977 SG_LOG( SG_GENERAL, SG_INFO, "Calculated altitude as: "
979 } else if( fabs(gs) > 0.01 && alt > 0 && fabs(od) < 0.1) {
980 // set offset-distance from glideslope and altitude
981 od = (alt - apt_elev) / tan(gs);
982 od *= -1*SG_FEET_TO_METER * SG_METER_TO_NM;
983 fgSetDouble("/sim/presets/offset-distance-nm", od);
984 fgSetBool("/sim/presets/onground", false);
985 SG_LOG( SG_GENERAL, SG_INFO, "Calculated offset distance as: "
987 } else if( fabs(gs) > 0.01 ) {
988 SG_LOG( SG_GENERAL, SG_ALERT,
989 "Glideslope given but not altitude or offset-distance." );
990 SG_LOG( SG_GENERAL, SG_ALERT, "Resetting glideslope to zero" );
991 fgSetDouble("/sim/presets/glideslope-deg", 0);
992 fgSetBool("/sim/presets/onground", true);
997 // Set current_options lon/lat given an airport id and heading (degrees)
998 static bool fgSetPosFromNAV( const string& id, const double& freq ) {
1000 = globals->get_navlist()->findByIdentAndFreq( id.c_str(), freq );
1002 // set initial position from runway and heading
1003 if ( nav != NULL ) {
1004 SG_LOG( SG_GENERAL, SG_INFO, "Attempting to set starting position for "
1005 << id << ":" << freq );
1007 double lon = nav->get_lon();
1008 double lat = nav->get_lat();
1010 if ( fabs( fgGetDouble("/sim/presets/offset-distance-nm") ) > SG_EPSILON )
1012 double odist = fgGetDouble("/sim/presets/offset-distance-nm")
1014 double oaz = fabs(fgGetDouble("/sim/presets/offset-azimuth-deg"))
1016 while ( oaz >= 360.0 ) { oaz -= 360.0; }
1017 double olat, olon, az2;
1018 geo_direct_wgs_84 ( 0, lat, lon, oaz, odist, &olat, &olon, &az2 );
1025 fgSetDouble("/sim/presets/longitude-deg", lon );
1026 fgSetDouble("/sim/presets/latitude-deg", lat );
1028 // other code depends on the actual values being set ...
1029 fgSetDouble("/position/longitude-deg", lon );
1030 fgSetDouble("/position/latitude-deg", lat );
1031 fgSetDouble("/orientation/heading-deg",
1032 fgGetDouble("/sim/presets/heading-deg") );
1034 SG_LOG( SG_GENERAL, SG_INFO,
1035 "Position for " << id << ":" << freq << " is ("
1036 << lon << ", "<< lat << ")" );
1040 SG_LOG( SG_GENERAL, SG_ALERT, "Failed to locate NAV = "
1041 << id << ":" << freq );
1046 // Set current_options lon/lat given an aircraft carrier id
1047 static bool fgSetPosFromCarrier( const string& carrier, const string& posid ) {
1049 // set initial position from runway and heading
1053 if (FGAIManager::getStartPosition(carrier, posid, geodPos, heading, uvw)) {
1054 double lon = geodPos.getLongitudeDeg();
1055 double lat = geodPos.getLatitudeDeg();
1056 double alt = geodPos.getElevationFt();
1058 SG_LOG( SG_GENERAL, SG_INFO, "Attempting to set starting position for "
1059 << carrier << " at lat = " << lat << ", lon = " << lon
1060 << ", alt = " << alt << ", heading = " << heading);
1062 fgSetDouble("/sim/presets/longitude-deg", lon);
1063 fgSetDouble("/sim/presets/latitude-deg", lat);
1064 fgSetDouble("/sim/presets/altitude-ft", alt);
1065 fgSetDouble("/sim/presets/heading-deg", heading);
1066 fgSetDouble("/position/longitude-deg", lon);
1067 fgSetDouble("/position/latitude-deg", lat);
1068 fgSetDouble("/position/altitude-ft", alt);
1069 fgSetDouble("/orientation/heading-deg", heading);
1071 fgSetString("/sim/presets/speed-set", "UVW");
1072 fgSetDouble("/velocities/uBody-fps", uvw(0));
1073 fgSetDouble("/velocities/vBody-fps", uvw(1));
1074 fgSetDouble("/velocities/wBody-fps", uvw(2));
1075 fgSetDouble("/sim/presets/uBody-fps", uvw(0));
1076 fgSetDouble("/sim/presets/vBody-fps", uvw(1));
1077 fgSetDouble("/sim/presets/wBody-fps", uvw(2));
1079 fgSetBool("/sim/presets/onground", true);
1083 SG_LOG( SG_GENERAL, SG_ALERT, "Failed to locate aircraft carrier = "
1089 // Set current_options lon/lat given an airport id and heading (degrees)
1090 static bool fgSetPosFromFix( const string& id ) {
1093 // set initial position from runway and heading
1094 if ( globals->get_fixlist()->query( id.c_str(), &fix ) ) {
1095 SG_LOG( SG_GENERAL, SG_INFO, "Attempting to set starting position for "
1098 double lon = fix.get_lon();
1099 double lat = fix.get_lat();
1101 if ( fabs( fgGetDouble("/sim/presets/offset-distance-nm") ) > SG_EPSILON )
1103 double odist = fgGetDouble("/sim/presets/offset-distance-nm")
1105 double oaz = fabs(fgGetDouble("/sim/presets/offset-azimuth-deg"))
1107 while ( oaz >= 360.0 ) { oaz -= 360.0; }
1108 double olat, olon, az2;
1109 geo_direct_wgs_84 ( 0, lat, lon, oaz, odist, &olat, &olon, &az2 );
1116 fgSetDouble("/sim/presets/longitude-deg", lon );
1117 fgSetDouble("/sim/presets/latitude-deg", lat );
1119 // other code depends on the actual values being set ...
1120 fgSetDouble("/position/longitude-deg", lon );
1121 fgSetDouble("/position/latitude-deg", lat );
1122 fgSetDouble("/orientation/heading-deg",
1123 fgGetDouble("/sim/presets/heading-deg") );
1125 SG_LOG( SG_GENERAL, SG_INFO,
1126 "Position for " << id << " is ("
1127 << lon << ", "<< lat << ")" );
1131 SG_LOG( SG_GENERAL, SG_ALERT, "Failed to locate NAV = "
1139 * Initialize vor/ndb/ils/fix list management and query systems (as
1140 * well as simple airport db list)
1145 SG_LOG(SG_GENERAL, SG_INFO, "Loading Airport Database ...");
1147 SGPath aptdb( globals->get_fg_root() );
1148 aptdb.append( "Airports/apt.dat" );
1150 SGPath p_metar( globals->get_fg_root() );
1151 p_metar.append( "Airports/metar.dat" );
1153 FGAirportList *airports = new FGAirportList();
1154 globals->set_airports( airports );
1155 FGRunwayList *runways = new FGRunwayList();
1156 globals->set_runways( runways );
1158 fgAirportDBLoad( airports, runways, aptdb.str(), p_metar.str() );
1160 FGNavList *navlist = new FGNavList;
1161 FGNavList *loclist = new FGNavList;
1162 FGNavList *gslist = new FGNavList;
1163 FGNavList *dmelist = new FGNavList;
1164 FGNavList *mkrlist = new FGNavList;
1165 FGNavList *tacanlist = new FGNavList;
1166 FGNavList *carrierlist = new FGNavList;
1167 FGTACANList *channellist = new FGTACANList;
1169 globals->set_navlist( navlist );
1170 globals->set_loclist( loclist );
1171 globals->set_gslist( gslist );
1172 globals->set_dmelist( dmelist );
1173 globals->set_mkrlist( mkrlist );
1174 globals->set_tacanlist( tacanlist );
1175 globals->set_carrierlist( carrierlist );
1176 globals->set_channellist( channellist );
1178 if ( !fgNavDBInit(airports, navlist, loclist, gslist, dmelist, mkrlist, tacanlist, carrierlist, channellist) ) {
1179 SG_LOG( SG_GENERAL, SG_ALERT,
1180 "Problems loading one or more navigational database" );
1183 if ( fgGetBool("/sim/navdb/localizers/auto-align", true) ) {
1184 // align all the localizers with their corresponding runways
1185 // since data sources are good for cockpit navigation
1186 // purposes, but not always to the error tolerances needed to
1187 // exactly place these items.
1189 = fgGetDouble( "/sim/navdb/localizers/auto-align-threshold-deg",
1191 fgNavDBAlignLOCwithRunway( runways, loclist, threshold );
1194 SG_LOG(SG_GENERAL, SG_INFO, " Fixes");
1195 SGPath p_fix( globals->get_fg_root() );
1196 p_fix.append( "Navaids/fix.dat" );
1197 FGFixList *fixlist = new FGFixList;
1198 fixlist->init( p_fix );
1199 globals->set_fixlist( fixlist );
1201 SG_LOG(SG_GENERAL, SG_INFO, " Airways");
1202 SGPath p_awy( globals->get_fg_root() );
1203 p_awy.append( "Navaids/awy.dat" );
1204 FGAirwayNetwork *awyNet = new FGAirwayNetwork;
1205 //cerr << "Loading Airways" << endl;
1206 awyNet->load (p_awy );
1208 //cerr << "initializing airways" << endl;
1209 globals->set_airwaynet( awyNet );
1215 // Set the initial position based on presets (or defaults)
1216 bool fgInitPosition() {
1217 // cout << "fgInitPosition()" << endl;
1218 double gs = fgGetDouble("/sim/presets/glideslope-deg")
1219 * SG_DEGREES_TO_RADIANS ;
1220 double od = fgGetDouble("/sim/presets/offset-distance-nm");
1221 double alt = fgGetDouble("/sim/presets/altitude-ft");
1223 bool set_pos = false;
1225 // If glideslope is specified, then calculate offset-distance or
1226 // altitude relative to glide slope if either of those was not
1228 if ( fabs( gs ) > 0.01 ) {
1229 fgSetDistOrAltFromGlideSlope();
1233 // If we have an explicit, in-range lon/lat, don't change it, just use it.
1234 // If not, check for an airport-id and use that.
1235 // If not, default to the middle of the KSFO field.
1236 // The default values for lon/lat are deliberately out of range
1237 // so that the airport-id can take effect; valid lon/lat will
1238 // override airport-id, however.
1239 double lon_deg = fgGetDouble("/sim/presets/longitude-deg");
1240 double lat_deg = fgGetDouble("/sim/presets/latitude-deg");
1241 if ( lon_deg >= -180.0 && lon_deg <= 180.0
1242 && lat_deg >= -90.0 && lat_deg <= 90.0 )
1247 string apt = fgGetString("/sim/presets/airport-id");
1248 string rwy_no = fgGetString("/sim/presets/runway");
1249 bool rwy_req = fgGetBool("/sim/presets/runway-requested");
1250 string vor = fgGetString("/sim/presets/vor-id");
1251 double vor_freq = fgGetDouble("/sim/presets/vor-freq");
1252 string ndb = fgGetString("/sim/presets/ndb-id");
1253 double ndb_freq = fgGetDouble("/sim/presets/ndb-freq");
1254 string carrier = fgGetString("/sim/presets/carrier");
1255 string parkpos = fgGetString("/sim/presets/parkpos");
1256 string fix = fgGetString("/sim/presets/fix");
1257 SGPropertyNode *hdg_preset = fgGetNode("/sim/presets/heading-deg", true);
1258 double hdg = hdg_preset->getDoubleValue();
1260 // save some start parameters, so that we can later say what the
1261 // user really requested. TODO generalize that and move it to options.cxx
1262 static bool start_options_saved = false;
1263 if (!start_options_saved) {
1264 start_options_saved = true;
1265 SGPropertyNode *opt = fgGetNode("/sim/startup/options", true);
1267 opt->setDoubleValue("latitude-deg", lat_deg);
1268 opt->setDoubleValue("longitude-deg", lon_deg);
1269 opt->setDoubleValue("heading-deg", hdg);
1270 opt->setStringValue("airport", apt.c_str());
1271 opt->setStringValue("runway", rwy_no.c_str());
1275 hdg = fgGetDouble("/environment/config/boundary/entry/wind-from-heading-deg", 270);
1277 if ( !set_pos && !apt.empty() && !parkpos.empty() ) {
1278 // An airport + parking position is requested
1279 if ( fgSetPosFromAirportIDandParkpos( apt, parkpos ) ) {
1280 // set tower position
1281 fgSetString("/sim/tower/airport-id", apt.c_str());
1286 if ( !set_pos && !apt.empty() && !rwy_no.empty() ) {
1287 // An airport + runway is requested
1288 if ( fgSetPosFromAirportIDandRwy( apt, rwy_no, rwy_req ) ) {
1289 // set tower position (a little off the heading for single
1291 fgSetString("/sim/tower/airport-id", apt.c_str());
1296 if ( !set_pos && !apt.empty() ) {
1297 // An airport is requested (find runway closest to hdg)
1298 if ( fgSetPosFromAirportIDandHdg( apt, hdg ) ) {
1299 // set tower position (a little off the heading for single
1301 fgSetString("/sim/tower/airport-id", apt.c_str());
1306 if (hdg_preset->getDoubleValue() > 9990.0)
1307 hdg_preset->setDoubleValue(hdg);
1309 if ( !set_pos && !vor.empty() ) {
1310 // a VOR is requested
1311 if ( fgSetPosFromNAV( vor, vor_freq ) ) {
1316 if ( !set_pos && !ndb.empty() ) {
1317 // an NDB is requested
1318 if ( fgSetPosFromNAV( ndb, ndb_freq ) ) {
1323 if ( !set_pos && !carrier.empty() ) {
1324 // an aircraft carrier is requested
1325 if ( fgSetPosFromCarrier( carrier, parkpos ) ) {
1330 if ( !set_pos && !fix.empty() ) {
1331 // a Fix is requested
1332 if ( fgSetPosFromFix( fix ) ) {
1338 // No lon/lat specified, no airport specified, default to
1339 // middle of KSFO field.
1340 fgSetDouble("/sim/presets/longitude-deg", -122.374843);
1341 fgSetDouble("/sim/presets/latitude-deg", 37.619002);
1344 fgSetDouble( "/position/longitude-deg",
1345 fgGetDouble("/sim/presets/longitude-deg") );
1346 fgSetDouble( "/position/latitude-deg",
1347 fgGetDouble("/sim/presets/latitude-deg") );
1348 fgSetDouble( "/orientation/heading-deg", hdg_preset->getDoubleValue());
1350 // determine if this should be an on-ground or in-air start
1351 if ((fabs(gs) > 0.01 || fabs(od) > 0.1 || alt > 0.1) && carrier.empty()) {
1352 fgSetBool("/sim/presets/onground", false);
1354 fgSetBool("/sim/presets/onground", true);
1361 // General house keeping initializations
1362 bool fgInitGeneral() {
1365 #if defined(FX) && defined(XMESA)
1366 char *mesa_win_state;
1369 SG_LOG( SG_GENERAL, SG_INFO, "General Initialization" );
1370 SG_LOG( SG_GENERAL, SG_INFO, "======= ==============" );
1372 root = globals->get_fg_root();
1373 if ( ! root.length() ) {
1374 // No root path set? Then bail ...
1375 SG_LOG( SG_GENERAL, SG_ALERT,
1376 "Cannot continue without a path to the base package "
1377 << "being defined." );
1380 SG_LOG( SG_GENERAL, SG_INFO, "FG_ROOT = " << '"' << root << '"' << endl );
1382 globals->set_browser(fgGetString("/sim/startup/browser-app", "firefox %u"));
1384 #if defined(FX) && defined(XMESA)
1385 // initialize full screen flag
1386 globals->set_fullscreen(false);
1387 if ( strstr ( general.get_glRenderer(), "Glide" ) ) {
1388 // Test for the MESA_GLX_FX env variable
1389 if ( (mesa_win_state = getenv( "MESA_GLX_FX" )) != NULL) {
1390 // test if we are fullscreen mesa/glide
1391 if ( (mesa_win_state[0] == 'f') ||
1392 (mesa_win_state[0] == 'F') ) {
1393 globals->set_fullscreen(true);
1399 char buf[512], *cwd = getcwd(buf, 511);
1401 SGPropertyNode *curr = fgGetNode("/sim", true);
1402 curr->removeChild("fg-current", 0, false);
1403 curr = curr->getChild("fg-current", 0, true);
1404 curr->setStringValue(cwd ? cwd : "");
1405 curr->setAttribute(SGPropertyNode::WRITE, false);
1410 // Initialize the flight model subsystem. This just creates the
1411 // object. The actual fdm initialization is delayed until we get a
1412 // proper scenery elevation hit. This is checked for in main.cxx
1416 if ( cur_fdm_state ) {
1417 delete cur_fdm_state;
1421 double dt = 1.0 / fgGetInt("/sim/model-hz");
1422 string model = fgGetString("/sim/flight-model");
1424 if ( model == "larcsim" ) {
1425 cur_fdm_state = new FGLaRCsim( dt );
1426 } else if ( model == "jsb" ) {
1427 cur_fdm_state = new FGJSBsim( dt );
1429 } else if ( model == "ada" ) {
1430 cur_fdm_state = new FGADA( dt );
1431 } else if ( model == "acms" ) {
1432 cur_fdm_state = new FGACMS( dt );
1434 } else if ( model == "balloon" ) {
1435 cur_fdm_state = new FGBalloonSim( dt );
1436 } else if ( model == "magic" ) {
1437 cur_fdm_state = new FGMagicCarpet( dt );
1438 } else if ( model == "ufo" ) {
1439 cur_fdm_state = new FGUFO( dt );
1440 } else if ( model == "external" ) {
1441 // external is a synonym for "--fdm=null" and is
1442 // maintained here for backwards compatibility
1443 cur_fdm_state = new FGNullFDM( dt );
1444 } else if ( model.find("network") == 0 ) {
1445 string host = "localhost";
1449 string net_options = model.substr(8);
1450 string::size_type begin, end;
1453 end = net_options.find( ",", begin );
1454 if ( end != string::npos ) {
1455 host = net_options.substr(begin, end - begin);
1459 end = net_options.find( ",", begin );
1460 if ( end != string::npos ) {
1461 port1 = atoi( net_options.substr(begin, end - begin).c_str() );
1465 end = net_options.find( ",", begin );
1466 if ( end != string::npos ) {
1467 port2 = atoi( net_options.substr(begin, end - begin).c_str() );
1471 end = net_options.find( ",", begin );
1472 if ( end != string::npos ) {
1473 port3 = atoi( net_options.substr(begin, end - begin).c_str() );
1476 cur_fdm_state = new FGExternalNet( dt, host, port1, port2, port3 );
1477 } else if ( model.find("pipe") == 0 ) {
1478 // /* old */ string pipe_path = model.substr(5);
1479 // /* old */ cur_fdm_state = new FGExternalPipe( dt, pipe_path );
1480 string pipe_path = "";
1481 string pipe_protocol = "";
1482 string pipe_options = model.substr(5);
1483 string::size_type begin, end;
1486 end = pipe_options.find( ",", begin );
1487 if ( end != string::npos ) {
1488 pipe_path = pipe_options.substr(begin, end - begin);
1491 // protocol (last option)
1492 pipe_protocol = pipe_options.substr(begin);
1493 cur_fdm_state = new FGExternalPipe( dt, pipe_path, pipe_protocol );
1494 } else if ( model == "null" ) {
1495 cur_fdm_state = new FGNullFDM( dt );
1496 } else if ( model == "yasim" ) {
1497 cur_fdm_state = new YASim( dt );
1499 throw sg_throwable(string("Unrecognized flight model '") + model
1500 + "', cannot init flight dynamics model.");
1504 // Initialize view parameters
1506 // force update of model so that viewer can get some data...
1507 globals->get_aircraft_model()->update(0);
1508 // run update for current view so that data is current...
1509 globals->get_viewmgr()->update(0);
1513 SGTime *fgInitTime() {
1515 static const SGPropertyNode *longitude
1516 = fgGetNode("/position/longitude-deg");
1517 static const SGPropertyNode *latitude
1518 = fgGetNode("/position/latitude-deg");
1519 static const SGPropertyNode *cur_time_override
1520 = fgGetNode("/sim/time/cur-time-override", true);
1522 SGPath zone( globals->get_fg_root() );
1523 zone.append( "Timezone" );
1524 SGTime *t = new SGTime( longitude->getDoubleValue()
1525 * SGD_DEGREES_TO_RADIANS,
1526 latitude->getDoubleValue()
1527 * SGD_DEGREES_TO_RADIANS,
1529 cur_time_override->getLongValue() );
1531 globals->set_warp_delta( 0 );
1533 t->update( 0.0, 0.0,
1534 cur_time_override->getLongValue(),
1535 globals->get_warp() );
1541 // set up a time offset (aka warp) if one is specified
1542 void fgInitTimeOffset() {
1543 static const SGPropertyNode *longitude
1544 = fgGetNode("/position/longitude-deg");
1545 static const SGPropertyNode *latitude
1546 = fgGetNode("/position/latitude-deg");
1547 static const SGPropertyNode *cur_time_override
1548 = fgGetNode("/sim/time/cur-time-override", true);
1550 // Handle potential user specified time offsets
1551 int orig_warp = globals->get_warp();
1552 SGTime *t = globals->get_time_params();
1553 time_t cur_time = t->get_cur_time();
1554 time_t currGMT = sgTimeGetGMT( gmtime(&cur_time) );
1555 time_t systemLocalTime = sgTimeGetGMT( localtime(&cur_time) );
1556 time_t aircraftLocalTime =
1557 sgTimeGetGMT( fgLocaltime(&cur_time, t->get_zonename() ) );
1559 // Okay, we now have several possible scenarios
1560 int offset = fgGetInt("/sim/startup/time-offset");
1561 string offset_type = fgGetString("/sim/startup/time-offset-type");
1564 if ( offset_type == "real" ) {
1566 } else if ( offset_type == "dawn" ) {
1567 warp = fgTimeSecondsUntilSunAngle( cur_time,
1568 longitude->getDoubleValue()
1569 * SGD_DEGREES_TO_RADIANS,
1570 latitude->getDoubleValue()
1571 * SGD_DEGREES_TO_RADIANS,
1573 } else if ( offset_type == "morning" ) {
1574 warp = fgTimeSecondsUntilSunAngle( cur_time,
1575 longitude->getDoubleValue()
1576 * SGD_DEGREES_TO_RADIANS,
1577 latitude->getDoubleValue()
1578 * SGD_DEGREES_TO_RADIANS,
1580 } else if ( offset_type == "noon" ) {
1581 warp = fgTimeSecondsUntilSunAngle( cur_time,
1582 longitude->getDoubleValue()
1583 * SGD_DEGREES_TO_RADIANS,
1584 latitude->getDoubleValue()
1585 * SGD_DEGREES_TO_RADIANS,
1587 } else if ( offset_type == "afternoon" ) {
1588 warp = fgTimeSecondsUntilSunAngle( cur_time,
1589 longitude->getDoubleValue()
1590 * SGD_DEGREES_TO_RADIANS,
1591 latitude->getDoubleValue()
1592 * SGD_DEGREES_TO_RADIANS,
1594 } else if ( offset_type == "dusk" ) {
1595 warp = fgTimeSecondsUntilSunAngle( cur_time,
1596 longitude->getDoubleValue()
1597 * SGD_DEGREES_TO_RADIANS,
1598 latitude->getDoubleValue()
1599 * SGD_DEGREES_TO_RADIANS,
1601 } else if ( offset_type == "evening" ) {
1602 warp = fgTimeSecondsUntilSunAngle( cur_time,
1603 longitude->getDoubleValue()
1604 * SGD_DEGREES_TO_RADIANS,
1605 latitude->getDoubleValue()
1606 * SGD_DEGREES_TO_RADIANS,
1608 } else if ( offset_type == "midnight" ) {
1609 warp = fgTimeSecondsUntilSunAngle( cur_time,
1610 longitude->getDoubleValue()
1611 * SGD_DEGREES_TO_RADIANS,
1612 latitude->getDoubleValue()
1613 * SGD_DEGREES_TO_RADIANS,
1615 } else if ( offset_type == "system-offset" ) {
1618 } else if ( offset_type == "gmt-offset" ) {
1619 warp = offset - (currGMT - systemLocalTime);
1621 } else if ( offset_type == "latitude-offset" ) {
1622 warp = offset - (aircraftLocalTime - systemLocalTime);
1624 } else if ( offset_type == "system" ) {
1625 warp = offset - (systemLocalTime - currGMT) - cur_time;
1626 } else if ( offset_type == "gmt" ) {
1627 warp = offset - cur_time;
1628 } else if ( offset_type == "latitude" ) {
1629 warp = offset - (aircraftLocalTime - currGMT)- cur_time;
1631 SG_LOG( SG_GENERAL, SG_ALERT,
1632 "FG_TIME::Unsupported offset type " << offset_type );
1635 globals->set_warp( orig_warp + warp );
1636 t->update( longitude->getDoubleValue() * SGD_DEGREES_TO_RADIANS,
1637 latitude->getDoubleValue() * SGD_DEGREES_TO_RADIANS,
1638 cur_time_override->getLongValue(),
1639 globals->get_warp() );
1641 SG_LOG( SG_GENERAL, SG_INFO, "After fgInitTimeOffset(): warp = "
1642 << globals->get_warp() );
1646 // This is the top level init routine which calls all the other
1647 // initialization routines. If you are adding a subsystem to flight
1648 // gear, its initialization call should located in this routine.
1649 // Returns non-zero if a problem encountered.
1650 bool fgInitSubsystems() {
1651 // static const SGPropertyNode *longitude
1652 // = fgGetNode("/sim/presets/longitude-deg");
1653 // static const SGPropertyNode *latitude
1654 // = fgGetNode("/sim/presets/latitude-deg");
1655 // static const SGPropertyNode *altitude
1656 // = fgGetNode("/sim/presets/altitude-ft");
1657 SG_LOG( SG_GENERAL, SG_INFO, "Initialize Subsystems");
1658 SG_LOG( SG_GENERAL, SG_INFO, "========== ==========");
1660 ////////////////////////////////////////////////////////////////////
1661 // Initialize the event manager subsystem.
1662 ////////////////////////////////////////////////////////////////////
1664 globals->get_event_mgr()->init();
1665 globals->get_event_mgr()->setRealtimeProperty(fgGetNode("/sim/time/delta-realtime-sec", true));
1667 ////////////////////////////////////////////////////////////////////
1668 // Initialize the property interpolator subsystem. Put into the INIT
1669 // group because the "nasal" subsystem may need it at GENERAL take-down.
1670 ////////////////////////////////////////////////////////////////////
1671 globals->add_subsystem("interpolator", new SGInterpolator, SGSubsystemMgr::INIT);
1674 ////////////////////////////////////////////////////////////////////
1675 // Add the FlightGear property utilities.
1676 ////////////////////////////////////////////////////////////////////
1677 globals->add_subsystem("properties", new FGProperties);
1679 ////////////////////////////////////////////////////////////////////
1680 // Initialize the material property subsystem.
1681 ////////////////////////////////////////////////////////////////////
1683 SGPath mpath( globals->get_fg_root() );
1684 mpath.append( "materials.xml" );
1685 string season = fgGetString("/sim/startup/season", "summer");
1686 if ( ! globals->get_matlib()->load(globals->get_fg_root(), mpath.str(), season.c_str(),
1687 globals->get_props()) ) {
1688 SG_LOG( SG_GENERAL, SG_ALERT, "Error loading material lib!" );
1693 ////////////////////////////////////////////////////////////////////
1694 // Initialize the scenery management subsystem.
1695 ////////////////////////////////////////////////////////////////////
1697 if ( globals->get_tile_mgr()->init() ) {
1698 // Load the local scenery data
1699 double visibility_meters = fgGetDouble("/environment/visibility-m");
1701 globals->get_tile_mgr()->update( visibility_meters );
1703 SG_LOG( SG_GENERAL, SG_ALERT, "Error in Tile Manager initialization!" );
1707 globals->get_scenery()->get_scene_graph()
1708 ->addChild(simgear::Particles::getCommonRoot());
1710 ////////////////////////////////////////////////////////////////////
1711 // Initialize the flight model subsystem.
1712 ////////////////////////////////////////////////////////////////////
1716 // allocates structures so must happen before any of the flight
1717 // model or control parameters are set
1718 fgAircraftInit(); // In the future this might not be the case.
1721 ////////////////////////////////////////////////////////////////////
1722 // Initialize the weather subsystem.
1723 ////////////////////////////////////////////////////////////////////
1725 // Initialize the weather modeling subsystem
1726 globals->add_subsystem("environment", new FGEnvironmentMgr);
1729 ////////////////////////////////////////////////////////////////////
1730 // Initialize the aircraft systems and instrumentation (before the
1732 ////////////////////////////////////////////////////////////////////
1734 globals->add_subsystem("instrumentation", new FGInstrumentMgr);
1735 globals->add_subsystem("systems", new FGSystemMgr);
1737 ////////////////////////////////////////////////////////////////////
1738 // Initialize the XML Autopilot subsystem.
1739 ////////////////////////////////////////////////////////////////////
1741 globals->add_subsystem( "xml-autopilot", new FGXMLAutopilot );
1742 globals->add_subsystem( "route-manager", new FGRouteMgr );
1745 ////////////////////////////////////////////////////////////////////
1746 // Initialize the view manager subsystem.
1747 ////////////////////////////////////////////////////////////////////
1751 ////////////////////////////////////////////////////////////////////
1752 // Create and register the logger.
1753 ////////////////////////////////////////////////////////////////////
1755 globals->add_subsystem("logger", new FGLogger);
1757 ////////////////////////////////////////////////////////////////////
1758 // Create and register the XML GUI.
1759 ////////////////////////////////////////////////////////////////////
1761 globals->add_subsystem("gui", new NewGUI, SGSubsystemMgr::INIT);
1764 ////////////////////////////////////////////////////////////////////
1765 // Initialize the local time subsystem.
1766 ////////////////////////////////////////////////////////////////////
1768 // update the current timezone each 30 minutes
1769 globals->get_event_mgr()->addTask( "fgUpdateLocalTime()",
1770 &fgUpdateLocalTime, 30*60 );
1771 fgInitTimeOffset(); // the environment subsystem needs this
1774 ////////////////////////////////////////////////////////////////////
1775 // Initialize the lighting subsystem.
1776 ////////////////////////////////////////////////////////////////////
1778 globals->add_subsystem("lighting", new FGLight);
1780 //////////////////////////////////////////////////////////////////////
1781 // Initialize the 2D cloud subsystem.
1782 ////////////////////////////////////////////////////////////////////
1783 fgGetBool("/sim/rendering/bump-mapping", false);
1785 #ifdef ENABLE_AUDIO_SUPPORT
1786 ////////////////////////////////////////////////////////////////////
1787 // Initialize the sound subsystem.
1788 ////////////////////////////////////////////////////////////////////
1790 init_volume = fgGetFloat("/sim/sound/volume");
1791 fgSetFloat("/sim/sound/volume", 0.0f);
1792 globals->set_soundmgr(new SGSoundMgr);
1793 globals->get_soundmgr()->init();
1794 globals->get_soundmgr()->bind();
1797 ////////////////////////////////////////////////////////////////////
1798 // Initialize the sound-effects subsystem.
1799 ////////////////////////////////////////////////////////////////////
1801 globals->add_subsystem("fx", new FGFX);
1802 globals->add_subsystem("voice", new FGVoiceMgr);
1805 ////////////////////////////////////////////////////////////////////
1806 // Initialise the ATC Manager
1807 ////////////////////////////////////////////////////////////////////
1809 SG_LOG(SG_GENERAL, SG_INFO, " ATC Manager");
1810 globals->set_ATC_mgr(new FGATCMgr);
1811 globals->get_ATC_mgr()->init();
1813 ////////////////////////////////////////////////////////////////////
1814 // Initialise the AI Manager
1815 ////////////////////////////////////////////////////////////////////
1817 SG_LOG(SG_GENERAL, SG_INFO, " AI Manager");
1818 globals->set_AI_mgr(new FGAIMgr);
1819 globals->get_AI_mgr()->init();
1821 ////////////////////////////////////////////////////////////////////
1822 // Initialise the AI Model Manager
1823 ////////////////////////////////////////////////////////////////////
1824 SG_LOG(SG_GENERAL, SG_INFO, " AI Model Manager");
1825 globals->add_subsystem("ai_model", new FGAIManager);
1826 globals->add_subsystem("submodel_mgr", new FGSubmodelMgr);
1829 // It's probably a good idea to initialize the top level traffic manager
1830 // After the AI and ATC systems have been initialized properly.
1831 // AI Traffic manager
1832 globals->add_subsystem("Traffic Manager", new FGTrafficManager);
1835 ////////////////////////////////////////////////////////////////////
1836 // Initialize the cockpit subsystem
1837 ////////////////////////////////////////////////////////////////////
1838 if( fgCockpitInit( ¤t_aircraft )) {
1839 // Cockpit initialized ok.
1841 SG_LOG( SG_GENERAL, SG_ALERT, "Error in Cockpit initialization!" );
1846 ////////////////////////////////////////////////////////////////////
1847 // Initialize I/O subsystem.
1848 ////////////////////////////////////////////////////////////////////
1850 globals->get_io()->init();
1851 globals->get_io()->bind();
1854 ////////////////////////////////////////////////////////////////////
1855 // Add a new 2D panel.
1856 ////////////////////////////////////////////////////////////////////
1858 string panel_path = fgGetString("/sim/panel/path",
1859 "Panels/Default/default.xml");
1861 globals->set_current_panel( fgReadPanel(panel_path) );
1862 if (globals->get_current_panel() == 0) {
1863 SG_LOG( SG_INPUT, SG_ALERT,
1864 "Error reading new panel from " << panel_path );
1866 SG_LOG( SG_INPUT, SG_INFO, "Loaded new panel from " << panel_path );
1867 globals->get_current_panel()->init();
1868 globals->get_current_panel()->bind();
1872 ////////////////////////////////////////////////////////////////////
1873 // Initialize the controls subsystem.
1874 ////////////////////////////////////////////////////////////////////
1876 globals->get_controls()->init();
1877 globals->get_controls()->bind();
1880 ////////////////////////////////////////////////////////////////////
1881 // Initialize the input subsystem.
1882 ////////////////////////////////////////////////////////////////////
1884 globals->add_subsystem("input", new FGInput);
1887 ////////////////////////////////////////////////////////////////////
1888 // Initialize the replay subsystem
1889 ////////////////////////////////////////////////////////////////////
1890 globals->add_subsystem("replay", new FGReplay);
1892 ////////////////////////////////////////////////////////////////////
1893 // Bind and initialize subsystems.
1894 ////////////////////////////////////////////////////////////////////
1896 globals->get_subsystem_mgr()->bind();
1897 globals->get_subsystem_mgr()->init();
1899 ////////////////////////////////////////////////////////////////////
1900 // Initialize multiplayer subsystem
1901 ////////////////////////////////////////////////////////////////////
1903 globals->set_multiplayer_mgr(new FGMultiplayMgr);
1904 globals->get_multiplayer_mgr()->init();
1906 ////////////////////////////////////////////////////////////////////////
1907 // Initialize the Nasal interpreter.
1908 // Do this last, so that the loaded scripts see initialized state
1909 ////////////////////////////////////////////////////////////////////////
1910 FGNasalSys* nasal = new FGNasalSys();
1911 globals->add_subsystem("nasal", nasal, SGSubsystemMgr::INIT);
1914 // initialize methods that depend on other subsystems.
1915 globals->get_subsystem_mgr()->postinit();
1917 ////////////////////////////////////////////////////////////////////////
1918 // End of subsystem initialization.
1919 ////////////////////////////////////////////////////////////////////
1921 SG_LOG( SG_GENERAL, SG_INFO, endl);
1923 // Save the initial state for future
1925 globals->saveInitialState();
1931 void fgReInitSubsystems()
1933 // static const SGPropertyNode *longitude
1934 // = fgGetNode("/sim/presets/longitude-deg");
1935 // static const SGPropertyNode *latitude
1936 // = fgGetNode("/sim/presets/latitude-deg");
1937 static const SGPropertyNode *altitude
1938 = fgGetNode("/sim/presets/altitude-ft");
1939 static const SGPropertyNode *master_freeze
1940 = fgGetNode("/sim/freeze/master");
1942 SG_LOG( SG_GENERAL, SG_INFO,
1943 "fgReInitSubsystems(): /position/altitude = "
1944 << altitude->getDoubleValue() );
1946 bool freeze = master_freeze->getBoolValue();
1948 fgSetBool("/sim/freeze/master", true);
1950 fgSetBool("/sim/crashed", false);
1952 // Force reupdating the positions of the ai 3d models. They are used for
1953 // initializing ground level for the FDM.
1954 globals->get_subsystem("ai_model")->reinit();
1956 // Initialize the FDM
1959 // allocates structures so must happen before any of the flight
1960 // model or control parameters are set
1961 fgAircraftInit(); // In the future this might not be the case.
1963 // reload offsets from config defaults
1964 globals->get_viewmgr()->reinit();
1968 globals->get_controls()->reset_all();
1970 fgUpdateLocalTime();
1972 // re-init to proper time of day setting
1976 fgSetBool("/sim/freeze/master", false);
1978 fgSetBool("/sim/sceneryloaded",false);
1982 void reInit(void) // from gui_local.cxx -- TODO merge with fgReInitSubsystems()
1984 static SGPropertyNode_ptr master_freeze = fgGetNode("/sim/freeze/master", true);
1986 bool freeze = master_freeze->getBoolValue();
1988 master_freeze->setBoolValue(true);
1990 fgSetBool("/sim/signals/reinit", true);
1991 cur_fdm_state->unbind();
1993 // in case user has changed window size as
1994 // restoreInitialState() overwrites these
1995 int xsize = fgGetInt("/sim/startup/xsize");
1996 int ysize = fgGetInt("/sim/startup/ysize");
1998 globals->restoreInitialState();
2000 // update our position based on current presets
2003 // We don't know how to resize the window, so keep the last values
2004 // for xsize and ysize, and don't use the one set initially
2005 fgSetInt("/sim/startup/xsize", xsize);
2006 fgSetInt("/sim/startup/ysize", ysize);
2008 SGTime *t = globals->get_time_params();
2011 globals->set_time_params(t);
2013 fgReInitSubsystems();
2015 globals->get_tile_mgr()->update(fgGetDouble("/environment/visibility-m"));
2016 globals->get_renderer()->resize(xsize, ysize);
2017 fgSetBool("/sim/signals/reinit", false);
2020 master_freeze->setBoolValue(false);