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.
30 #include <string.h> // strcmp()
32 #if defined( unix ) || defined( __CYGWIN__ )
33 # include <unistd.h> // for gethostname()
36 # include <direct.h> // for getcwd()
37 # define getcwd _getcwd
38 # include <io.h> // isatty()
39 # define isatty _isatty
40 # include "winsock2.h" // for gethostname()
43 // work around a stdc++ lib bug in some versions of linux, but doesn't
44 // seem to hurt to have this here for all versions of Linux.
46 # define _G_NO_EXTERN_TEMPLATES
49 #include <simgear/compiler.h>
52 #include <boost/algorithm/string/compare.hpp>
53 #include <boost/algorithm/string/predicate.hpp>
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/structure/SGPerfMon.hxx>
60 #include <simgear/misc/sg_path.hxx>
61 #include <simgear/misc/sg_dir.hxx>
62 #include <simgear/misc/sgstream.hxx>
63 #include <simgear/misc/strutils.hxx>
64 #include <simgear/props/props_io.hxx>
66 #include <simgear/misc/interpolator.hxx>
67 #include <simgear/scene/material/matlib.hxx>
68 #include <simgear/scene/model/particles.hxx>
69 #include <simgear/sound/soundmgr_openal.hxx>
71 #include <Aircraft/controls.hxx>
72 #include <Aircraft/replay.hxx>
73 #include <Airports/apt_loader.hxx>
74 #include <Airports/runways.hxx>
75 #include <Airports/simple.hxx>
76 #include <Airports/dynamics.hxx>
78 #include <AIModel/AIManager.hxx>
80 #include <ATCDCL/ATCmgr.hxx>
81 #include <ATC/atc_mgr.hxx>
83 #include <Autopilot/route_mgr.hxx>
84 #include <Autopilot/autopilotgroup.hxx>
86 #include <Cockpit/panel.hxx>
87 #include <Cockpit/panel_io.hxx>
89 #include <GUI/new_gui.hxx>
90 #include <Input/input.hxx>
91 #include <Instrumentation/instrument_mgr.hxx>
92 #include <Model/acmodel.hxx>
93 #include <Model/modelmgr.hxx>
94 #include <AIModel/submodel.hxx>
95 #include <AIModel/AIManager.hxx>
96 #include <Navaids/navdb.hxx>
97 #include <Navaids/navlist.hxx>
98 #include <Navaids/fix.hxx>
99 #include <Navaids/fixlist.hxx>
100 #include <Navaids/airways.hxx>
101 #include <Scenery/scenery.hxx>
102 #include <Scenery/tilemgr.hxx>
103 #include <Scripting/NasalSys.hxx>
104 #include <Sound/voice.hxx>
105 #include <Systems/system_mgr.hxx>
106 #include <Time/light.hxx>
107 #include <Traffic/TrafficMgr.hxx>
108 #include <MultiPlayer/multiplaymgr.hxx>
109 #include <FDM/fdm_shell.hxx>
110 #include <Environment/ephemeris.hxx>
111 #include <Environment/environment_mgr.hxx>
113 #include "fg_init.hxx"
115 #include "fg_commands.hxx"
116 #include "fg_props.hxx"
117 #include "options.hxx"
118 #include "globals.hxx"
119 #include "logger.hxx"
120 #include "renderer.hxx"
121 #include "viewmgr.hxx"
126 using namespace boost::algorithm;
129 // Return the current base package version
130 string fgBasePackageVersion() {
131 SGPath base_path( globals->get_fg_root() );
132 base_path.append("version");
134 sg_gzifstream in( base_path.str() );
135 if ( !in.is_open() ) {
136 SGPath old_path( globals->get_fg_root() );
137 old_path.append( "Thanks" );
138 sg_gzifstream old( old_path.str() );
139 if ( !old.is_open() ) {
142 return "[old version]";
153 // Initialize the localization
154 SGPropertyNode *fgInitLocale(const char *language) {
155 SGPropertyNode *c_node = NULL, *d_node = NULL;
156 SGPropertyNode *intl = fgGetNode("/sim/intl");
158 SG_LOG(SG_GENERAL, SG_INFO, "Selecting language: " << language );
160 // localization not defined
165 // Select the proper language from the list
167 vector<SGPropertyNode_ptr> locale = intl->getChildren("locale");
168 for (unsigned int i = 0; i < locale.size(); i++) {
170 vector<SGPropertyNode_ptr> lang = locale[i]->getChildren("lang");
171 for (unsigned int j = 0; j < lang.size(); j++) {
173 if (!strcmp(lang[j]->getStringValue(), language)) {
182 d_node = intl->getChild("locale");
186 // Check for localized font
187 SGPropertyNode *font_n = c_node->getNode("font", true);
188 if ( !strcmp(font_n->getStringValue(), "") )
189 font_n->setStringValue(d_node->getStringValue("font", "typewriter.txf"));
193 // Load the default strings
195 SGPath d_path( globals->get_fg_root() );
197 const char *d_path_str = d_node->getStringValue("strings");
199 SG_LOG(SG_GENERAL, SG_ALERT, "No path in " << d_node->getPath() << "/strings.");
203 d_path.append(d_path_str);
204 SG_LOG(SG_GENERAL, SG_INFO, "Reading localized strings from " << d_path.str());
206 SGPropertyNode *strings = c_node->getNode("strings");
208 readProperties(d_path.str(), strings);
209 } catch (const sg_exception &) {
210 SG_LOG(SG_GENERAL, SG_ALERT, "Unable to read the localized strings");
215 // Load the language specific strings
217 if (c_node != d_node) {
218 SGPath c_path( globals->get_fg_root() );
220 const char *c_path_str = c_node->getStringValue("strings");
222 SG_LOG(SG_GENERAL, SG_ALERT, "No path in " << c_node->getPath() << "/strings");
226 c_path.append(c_path_str);
227 SG_LOG(SG_GENERAL, SG_INFO, "Reading localized strings from " << c_path.str());
230 readProperties(c_path.str(), strings);
231 } catch (const sg_exception &) {
232 SG_LOG(SG_GENERAL, SG_ALERT,
233 "Unable to read the localized strings from " << c_path.str());
243 // Initialize the localization routines
244 bool fgDetectLanguage() {
245 const char *language = ::getenv("LANG");
247 if (language == NULL) {
248 SG_LOG(SG_GENERAL, SG_INFO, "Unable to detect the language" );
252 SGPropertyNode *locale = fgInitLocale(language);
254 SG_LOG(SG_GENERAL, SG_ALERT,
255 "No internationalization settings specified in preferences.xml" );
260 globals->set_locale( locale );
266 bool fgFindAircraftInDir(const SGPath& dirPath, T* obj, bool (T::*pred)(const SGPath& p))
268 if (!dirPath.exists()) {
269 SG_LOG(SG_GENERAL, SG_WARN, "fgFindAircraftInDir: no such path:" << dirPath.str());
274 simgear::Dir dir(dirPath);
275 simgear::PathList setFiles(dir.children(simgear::Dir::TYPE_FILE, "-set.xml"));
276 simgear::PathList::iterator p;
277 for (p = setFiles.begin(); p != setFiles.end(); ++p) {
278 // check file name ends with -set.xml
280 // if we found a -set.xml at this level, don't recurse any deeper
283 bool done = (obj->*pred)(*p);
287 } // of -set.xml iteration
293 simgear::PathList subdirs(dir.children(simgear::Dir::TYPE_DIR | simgear::Dir::NO_DOT_OR_DOTDOT));
294 for (p = subdirs.begin(); p != subdirs.end(); ++p) {
295 if (p->file() == "CVS") {
299 if (fgFindAircraftInDir(*p, obj, pred)) {
302 } // of subdirs iteration
308 void fgFindAircraft(T* obj, bool (T::*pred)(const SGPath& p))
310 const string_list& paths(globals->get_aircraft_paths());
311 string_list::const_iterator it = paths.begin();
312 for (; it != paths.end(); ++it) {
313 bool done = fgFindAircraftInDir(SGPath(*it), obj, pred);
317 } // of aircraft paths iteration
319 // if we reach this point, search the default location (always last)
320 SGPath rootAircraft(globals->get_fg_root());
321 rootAircraft.append("Aircraft");
322 fgFindAircraftInDir(rootAircraft, obj, pred);
325 class FindAndCacheAircraft
328 FindAndCacheAircraft(SGPropertyNode* autoSave)
330 _cache = autoSave->getNode("sim/startup/path-cache", true);
335 std::string aircraft = fgGetString( "/sim/aircraft", "");
336 if (aircraft.empty()) {
337 SG_LOG(SG_GENERAL, SG_ALERT, "no aircraft specified");
341 _searchAircraft = aircraft + "-set.xml";
342 std::string aircraftDir = fgGetString("/sim/aircraft-dir", "");
343 if (!aircraftDir.empty()) {
344 // aircraft-dir was set, skip any searching at all, if it's valid
345 simgear::Dir acPath(aircraftDir);
346 SGPath setFile = acPath.file(_searchAircraft);
347 if (setFile.exists()) {
348 SG_LOG(SG_GENERAL, SG_INFO, "found aircraft in dir: " << aircraftDir );
351 readProperties(setFile.str(), globals->get_props());
352 } catch ( const sg_exception &e ) {
353 SG_LOG(SG_INPUT, SG_ALERT, "Error reading aircraft: " << e.getFormattedMessage());
359 SG_LOG(SG_GENERAL, SG_ALERT, "aircraft '" << _searchAircraft <<
360 "' not found in specified dir:" << aircraftDir);
366 // prepare cache for re-scan
367 SGPropertyNode *n = _cache->getNode("fg-root", true);
368 n->setStringValue(globals->get_fg_root().c_str());
369 n->setAttribute(SGPropertyNode::USERARCHIVE, true);
370 n = _cache->getNode("fg-aircraft", true);
371 n->setStringValue(getAircraftPaths().c_str());
372 n->setAttribute(SGPropertyNode::USERARCHIVE, true);
373 _cache->removeChildren("aircraft");
375 fgFindAircraft(this, &FindAndCacheAircraft::checkAircraft);
378 if (_foundPath.str().empty()) {
379 SG_LOG(SG_GENERAL, SG_ALERT, "Cannot find specified aircraft: " << aircraft );
383 SG_LOG(SG_GENERAL, SG_INFO, "Loading aircraft -set file from:" << _foundPath.str());
384 fgSetString( "/sim/aircraft-dir", _foundPath.dir().c_str());
385 if (!_foundPath.exists()) {
386 SG_LOG(SG_GENERAL, SG_ALERT, "Unable to find -set file:" << _foundPath.str());
391 readProperties(_foundPath.str(), globals->get_props());
392 } catch ( const sg_exception &e ) {
393 SG_LOG(SG_INPUT, SG_ALERT, "Error reading aircraft: " << e.getFormattedMessage());
401 SGPath getAircraftPaths() {
402 string_list pathList = globals->get_aircraft_paths();
403 SGPath aircraftPaths;
404 string_list::const_iterator it = pathList.begin();
405 if (it != pathList.end()) {
406 aircraftPaths.set(*it);
409 for (; it != pathList.end(); ++it) {
410 aircraftPaths.add(*it);
412 return aircraftPaths;
417 if (globals->get_fg_root() != _cache->getStringValue("fg-root", "")) {
418 return false; // cache mismatch
421 if (getAircraftPaths().str() != _cache->getStringValue("fg-aircraft", "")) {
422 return false; // cache mismatch
425 vector<SGPropertyNode_ptr> cache = _cache->getChildren("aircraft");
426 for (unsigned int i = 0; i < cache.size(); i++) {
427 const char *name = cache[i]->getStringValue("file", "");
428 if (!boost::equals(_searchAircraft, name, is_iequal())) {
432 SGPath xml(cache[i]->getStringValue("path", ""));
440 } // of aircraft in cache iteration
445 bool checkAircraft(const SGPath& p)
450 if (!_cache->getChild("aircraft", i++, false))
454 SGPropertyNode *n, *entry = _cache->getChild("aircraft", --i, true);
456 std::string fileName(p.file());
457 n = entry->getNode("file", true);
458 n->setStringValue(fileName);
459 n->setAttribute(SGPropertyNode::USERARCHIVE, true);
461 n = entry->getNode("path", true);
462 n->setStringValue(p.dir());
463 n->setAttribute(SGPropertyNode::USERARCHIVE, true);
465 if ( boost::equals(fileName, _searchAircraft.c_str(), is_iequal()) ) {
473 std::string _searchAircraft;
475 SGPropertyNode* _cache;
479 static SGPath platformDefaultDataPath()
481 char *envp = ::getenv( "APPDATA" );
482 SGPath config( envp );
483 config.append( "flightgear.org" );
488 #include <CoreServices/CoreServices.h>
490 static SGPath platformDefaultDataPath()
493 OSErr err = FSFindFolder(kUserDomain, kApplicationSupportFolderType, false, &ref);
498 unsigned char path[1024];
499 if (FSRefMakePath(&ref, path, 1024) != noErr) {
504 appData.set((const char*) path);
505 appData.append("flightgear.org");
509 static SGPath platformDefaultDataPath()
511 SGPath config( homedir );
512 config.append( ".fgfs" );
517 // Read in configuration (file and command line)
518 bool fgInitConfig ( int argc, char **argv )
520 SGPath dataPath = platformDefaultDataPath();
522 const char *fg_home = getenv("FG_HOME");
526 simgear::Dir exportDir(simgear::Dir(dataPath).file("Export"));
527 if (!exportDir.exists()) {
528 exportDir.create(0777);
531 // Set /sim/fg-home and don't allow malign code to override it until
532 // Nasal security is set up. Use FG_HOME if necessary.
533 SGPropertyNode *home = fgGetNode("/sim", true);
534 home->removeChild("fg-home", 0, false);
535 home = home->getChild("fg-home", 0, true);
536 home->setStringValue(dataPath.c_str());
537 home->setAttribute(SGPropertyNode::WRITE, false);
539 flightgear::Options::sharedInstance()->init(argc, argv, dataPath);
541 // Read global preferences from $FG_ROOT/preferences.xml
542 SG_LOG(SG_INPUT, SG_INFO, "Reading global preferences");
543 fgLoadProps("preferences.xml", globals->get_props());
544 SG_LOG(SG_INPUT, SG_INFO, "Finished Reading global preferences");
546 // Detect the required language as early as possible
547 if ( !fgDetectLanguage() ) {
551 SGPropertyNode autosave;
554 SGPath autosaveFile = simgear::Dir(dataPath).file("autosave.xml");
555 if (autosaveFile.exists()) {
556 SG_LOG(SG_INPUT, SG_INFO, "Reading user settings from " << autosaveFile.str());
558 readProperties(autosaveFile.str(), &autosave, SGPropertyNode::USERARCHIVE);
559 } catch (sg_exception& e) {
560 SG_LOG(SG_INPUT, SG_WARN, "failed to read user settings:" << e.getMessage()
561 << "(from " << e.getOrigin() << ")");
565 // Scan user config files and command line for a specified aircraft.
566 flightgear::Options::sharedInstance()->initAircraft();
568 FindAndCacheAircraft f(&autosave);
569 if (!f.loadAircraft()) {
573 copyProperties(&autosave, globals->get_props());
575 // TODO Move some of the code above into loadUserSettings after the 2.6 release
576 // call dummy function, for now just to indicate that data was loaded
577 globals->loadUserSettings();
579 // parse options after loading aircraft to ensure any user
580 // overrides of defaults are honored.
581 flightgear::Options::sharedInstance()->processOptions();
586 // Set current tower position lon/lat given an airport id
587 static bool fgSetTowerPosFromAirportID( const string& id) {
588 const FGAirport *a = fgFindAirportID( id);
590 SGGeod tower = a->getTowerLocation();
591 fgSetDouble("/sim/tower/longitude-deg", tower.getLongitudeDeg());
592 fgSetDouble("/sim/tower/latitude-deg", tower.getLatitudeDeg());
593 fgSetDouble("/sim/tower/altitude-ft", tower.getElevationFt());
601 struct FGTowerLocationListener : SGPropertyChangeListener {
602 void valueChanged(SGPropertyNode* node) {
603 string id(node->getStringValue());
604 if (fgGetBool("/sim/tower/auto-position",true))
606 // enforce using closest airport when auto-positioning is enabled
607 const char* closest_airport = fgGetString("/sim/airport/closest-airport-id", "");
608 if (closest_airport && (id != closest_airport))
610 id = closest_airport;
611 node->setStringValue(id);
614 fgSetTowerPosFromAirportID(id);
618 struct FGClosestTowerLocationListener : SGPropertyChangeListener
620 void valueChanged(SGPropertyNode* )
622 // closest airport has changed
623 if (fgGetBool("/sim/tower/auto-position",true))
625 // update tower position
626 const char* id = fgGetString("/sim/airport/closest-airport-id", "");
628 fgSetString("/sim/tower/airport-id", id);
633 void fgInitTowerLocationListener() {
634 fgGetNode("/sim/tower/airport-id", true)
635 ->addChangeListener( new FGTowerLocationListener(), true );
636 FGClosestTowerLocationListener* ntcl = new FGClosestTowerLocationListener();
637 fgGetNode("/sim/airport/closest-airport-id", true)
638 ->addChangeListener(ntcl , true );
639 fgGetNode("/sim/tower/auto-position", true)
640 ->addChangeListener(ntcl, true );
643 static void fgApplyStartOffset(const SGGeod& aStartPos, double aHeading, double aTargetHeading = HUGE_VAL)
645 SGGeod startPos(aStartPos);
646 if (aTargetHeading == HUGE_VAL) {
647 aTargetHeading = aHeading;
650 if ( fabs( fgGetDouble("/sim/presets/offset-distance-nm") ) > SG_EPSILON ) {
651 double offsetDistance = fgGetDouble("/sim/presets/offset-distance-nm");
652 offsetDistance *= SG_NM_TO_METER;
653 double offsetAzimuth = aHeading;
654 if ( fabs(fgGetDouble("/sim/presets/offset-azimuth-deg")) > SG_EPSILON ) {
655 offsetAzimuth = fgGetDouble("/sim/presets/offset-azimuth-deg");
656 aHeading = aTargetHeading;
661 SGGeodesy::direct(startPos, offsetAzimuth + 180, offsetDistance, offset, az2);
666 fgSetDouble("/sim/presets/longitude-deg", startPos.getLongitudeDeg() );
667 fgSetDouble("/sim/presets/latitude-deg", startPos.getLatitudeDeg() );
668 fgSetDouble("/sim/presets/heading-deg", aHeading );
670 // other code depends on the actual values being set ...
671 fgSetDouble("/position/longitude-deg", startPos.getLongitudeDeg() );
672 fgSetDouble("/position/latitude-deg", startPos.getLatitudeDeg() );
673 fgSetDouble("/orientation/heading-deg", aHeading );
676 // Set current_options lon/lat given an airport id and heading (degrees)
677 bool fgSetPosFromAirportIDandHdg( const string& id, double tgt_hdg ) {
681 // set initial position from runway and heading
682 SG_LOG( SG_GENERAL, SG_INFO,
683 "Attempting to set starting position from airport code "
684 << id << " heading " << tgt_hdg );
686 const FGAirport* apt = fgFindAirportID(id);
687 if (!apt) return false;
688 FGRunway* r = apt->findBestRunwayForHeading(tgt_hdg);
689 fgSetString("/sim/atc/runway", r->ident().c_str());
691 SGGeod startPos = r->pointOnCenterline(fgGetDouble("/sim/airport/runways/start-offset-m", 5.0));
692 fgApplyStartOffset(startPos, r->headingDeg(), tgt_hdg);
696 // Set current_options lon/lat given an airport id and parkig position name
697 static bool fgSetPosFromAirportIDandParkpos( const string& id, const string& parkpos ) {
701 // can't see an easy way around this const_cast at the moment
702 FGAirport* apt = const_cast<FGAirport*>(fgFindAirportID(id));
704 SG_LOG( SG_GENERAL, SG_ALERT, "Failed to find airport " << id );
707 FGAirportDynamics* dcs = apt->getDynamics();
709 SG_LOG( SG_GENERAL, SG_ALERT,
710 "Airport " << id << "does not appear to have parking information available");
714 int park_index = dcs->getNrOfParkings() - 1;
716 double radius = fgGetDouble("/sim/dimensions/radius-m");
717 if ((parkpos == string("AVAILABLE")) && (radius > 0)) {
718 double lat, lon, heading;
723 acData = fgGetString("/sim/fg-home");
724 acData.append("aircraft-data");
725 string acfile = fgGetString("/sim/aircraft") + string(".xml");
726 acData.append(acfile);
728 readProperties(acData.str(), &root);
729 SGPropertyNode * node = root.getNode("sim");
730 fltType = node->getStringValue("aircraft-class", "NONE" );
731 acOperator = node->getStringValue("aircraft-operator", "NONE" );
732 } catch (const sg_exception &) {
733 SG_LOG(SG_GENERAL, SG_INFO,
734 "Could not load aircraft aircrat type and operator information from: " << acData.str() << ". Using defaults");
736 // cout << path.str() << endl;
738 if (fltType.empty() || fltType == "NONE") {
739 SG_LOG(SG_GENERAL, SG_INFO,
740 "Aircraft type information not found in: " << acData.str() << ". Using default value");
741 fltType = fgGetString("/sim/aircraft-class" );
743 if (acOperator.empty() || fltType == "NONE") {
744 SG_LOG(SG_GENERAL, SG_INFO,
745 "Aircraft operator information not found in: " << acData.str() << ". Using default value");
746 acOperator = fgGetString("/sim/aircraft-operator" );
749 cerr << "Running aircraft " << fltType << " of livery " << acOperator << endl;
750 string acType; // Currently not used by findAvailable parking, so safe to leave empty.
751 succes = dcs->getAvailableParking(&lat, &lon, &heading, &park_index, radius, fltType, acType, acOperator);
753 fgGetString("/sim/presets/parkpos");
754 fgSetString("/sim/presets/parkpos", dcs->getParking(park_index)->getName());
756 SG_LOG( SG_GENERAL, SG_ALERT,
757 "Failed to find a suitable parking at airport " << id );
761 //cerr << "We shouldn't get here when AVAILABLE" << endl;
762 while (park_index >= 0 && dcs->getParkingName(park_index) != parkpos) park_index--;
763 if (park_index < 0) {
764 SG_LOG( SG_GENERAL, SG_ALERT,
765 "Failed to find parking position " << parkpos <<
766 " at airport " << id );
770 FGParking* parking = dcs->getParking(park_index);
771 parking->setAvailable(false);
773 SGGeod::fromDeg(parking->getLongitude(), parking->getLatitude()),
774 parking->getHeading());
779 // Set current_options lon/lat given an airport id and runway number
780 static bool fgSetPosFromAirportIDandRwy( const string& id, const string& rwy, bool rwy_req ) {
784 // set initial position from airport and runway number
785 SG_LOG( SG_GENERAL, SG_INFO,
786 "Attempting to set starting position for "
787 << id << ":" << rwy );
789 const FGAirport* apt = fgFindAirportID(id);
791 SG_LOG( SG_GENERAL, SG_ALERT, "Failed to find airport:" << id);
795 if (!apt->hasRunwayWithIdent(rwy)) {
796 SG_LOG( SG_GENERAL, rwy_req ? SG_ALERT : SG_INFO,
797 "Failed to find runway " << rwy <<
798 " at airport " << id << ". Using default runway." );
802 FGRunway* r(apt->getRunwayByIdent(rwy));
803 fgSetString("/sim/atc/runway", r->ident().c_str());
804 SGGeod startPos = r->pointOnCenterline( fgGetDouble("/sim/airport/runways/start-offset-m", 5.0));
805 fgApplyStartOffset(startPos, r->headingDeg());
810 static void fgSetDistOrAltFromGlideSlope() {
811 // cout << "fgSetDistOrAltFromGlideSlope()" << endl;
812 string apt_id = fgGetString("/sim/presets/airport-id");
813 double gs = fgGetDouble("/sim/presets/glideslope-deg")
814 * SG_DEGREES_TO_RADIANS ;
815 double od = fgGetDouble("/sim/presets/offset-distance-nm");
816 double alt = fgGetDouble("/sim/presets/altitude-ft");
818 double apt_elev = 0.0;
819 if ( ! apt_id.empty() ) {
820 apt_elev = fgGetAirportElev( apt_id );
821 if ( apt_elev < -9990.0 ) {
828 if( fabs(gs) > 0.01 && fabs(od) > 0.1 && alt < -9990 ) {
829 // set altitude from glideslope and offset-distance
830 od *= SG_NM_TO_METER * SG_METER_TO_FEET;
831 alt = fabs(od*tan(gs)) + apt_elev;
832 fgSetDouble("/sim/presets/altitude-ft", alt);
833 fgSetBool("/sim/presets/onground", false);
834 SG_LOG( SG_GENERAL, SG_INFO, "Calculated altitude as: "
836 } else if( fabs(gs) > 0.01 && alt > 0 && fabs(od) < 0.1) {
837 // set offset-distance from glideslope and altitude
838 od = (alt - apt_elev) / tan(gs);
839 od *= -1*SG_FEET_TO_METER * SG_METER_TO_NM;
840 fgSetDouble("/sim/presets/offset-distance-nm", od);
841 fgSetBool("/sim/presets/onground", false);
842 SG_LOG( SG_GENERAL, SG_INFO, "Calculated offset distance as: "
844 } else if( fabs(gs) > 0.01 ) {
845 SG_LOG( SG_GENERAL, SG_ALERT,
846 "Glideslope given but not altitude or offset-distance." );
847 SG_LOG( SG_GENERAL, SG_ALERT, "Resetting glideslope to zero" );
848 fgSetDouble("/sim/presets/glideslope-deg", 0);
849 fgSetBool("/sim/presets/onground", true);
854 // Set current_options lon/lat given an airport id and heading (degrees)
855 static bool fgSetPosFromNAV( const string& id, const double& freq, FGPositioned::Type type ) {
857 const nav_list_type navlist
858 = globals->get_navlist()->findByIdentAndFreq( id.c_str(), freq, type );
860 if (navlist.size() == 0 ) {
861 SG_LOG( SG_GENERAL, SG_ALERT, "Failed to locate NAV = "
862 << id << ":" << freq );
866 if( navlist.size() > 1 ) {
868 buf << "Ambigous NAV-ID: '" << id << "'. Specify id and frequency. Available stations:" << endl;
869 for( nav_list_type::const_iterator it = navlist.begin(); it != navlist.end(); ++it ) {
870 // NDB stored in kHz, VOR stored in MHz * 100 :-P
871 double factor = (*it)->type() == FGPositioned::NDB ? 1.0 : 1/100.0;
872 string unit = (*it)->type() == FGPositioned::NDB ? "kHz" : "MHz";
873 buf << (*it)->ident() << " "
874 << setprecision(5) << (double)((*it)->get_freq() * factor) << " "
875 << (*it)->get_lat() << "/" << (*it)->get_lon()
879 SG_LOG( SG_GENERAL, SG_ALERT, buf.str() );
883 FGNavRecord *nav = navlist[0];
884 fgApplyStartOffset(nav->geod(), fgGetDouble("/sim/presets/heading-deg"));
888 // Set current_options lon/lat given an aircraft carrier id
889 static bool fgSetPosFromCarrier( const string& carrier, const string& posid ) {
891 // set initial position from runway and heading
895 if (FGAIManager::getStartPosition(carrier, posid, geodPos, heading, uvw)) {
896 double lon = geodPos.getLongitudeDeg();
897 double lat = geodPos.getLatitudeDeg();
898 double alt = geodPos.getElevationFt();
900 SG_LOG( SG_GENERAL, SG_INFO, "Attempting to set starting position for "
901 << carrier << " at lat = " << lat << ", lon = " << lon
902 << ", alt = " << alt << ", heading = " << heading);
904 fgSetDouble("/sim/presets/longitude-deg", lon);
905 fgSetDouble("/sim/presets/latitude-deg", lat);
906 fgSetDouble("/sim/presets/altitude-ft", alt);
907 fgSetDouble("/sim/presets/heading-deg", heading);
908 fgSetDouble("/position/longitude-deg", lon);
909 fgSetDouble("/position/latitude-deg", lat);
910 fgSetDouble("/position/altitude-ft", alt);
911 fgSetDouble("/orientation/heading-deg", heading);
913 fgSetString("/sim/presets/speed-set", "UVW");
914 fgSetDouble("/velocities/uBody-fps", uvw(0));
915 fgSetDouble("/velocities/vBody-fps", uvw(1));
916 fgSetDouble("/velocities/wBody-fps", uvw(2));
917 fgSetDouble("/sim/presets/uBody-fps", uvw(0));
918 fgSetDouble("/sim/presets/vBody-fps", uvw(1));
919 fgSetDouble("/sim/presets/wBody-fps", uvw(2));
921 fgSetBool("/sim/presets/onground", true);
925 SG_LOG( SG_GENERAL, SG_ALERT, "Failed to locate aircraft carrier = "
931 // Set current_options lon/lat given an airport id and heading (degrees)
932 static bool fgSetPosFromFix( const string& id )
934 FGPositioned::TypeFilter fixFilter(FGPositioned::FIX);
935 FGPositioned* fix = FGPositioned::findNextWithPartialId(NULL, id, &fixFilter);
937 SG_LOG( SG_GENERAL, SG_ALERT, "Failed to locate fix = " << id );
941 fgApplyStartOffset(fix->geod(), fgGetDouble("/sim/presets/heading-deg"));
946 * Initialize vor/ndb/ils/fix list management and query systems (as
947 * well as simple airport db list)
952 SG_LOG(SG_GENERAL, SG_INFO, "Loading Airport Database ...");
954 SGPath aptdb( globals->get_fg_root() );
955 aptdb.append( "Airports/apt.dat" );
957 SGPath p_metar( globals->get_fg_root() );
958 p_metar.append( "Airports/metar.dat" );
960 fgAirportDBLoad( aptdb.str(), p_metar.str() );
961 FGAirport::installPropertyListener();
962 FGPositioned::installCommands();
964 FGNavList *navlist = new FGNavList;
965 FGNavList *loclist = new FGNavList;
966 FGNavList *gslist = new FGNavList;
967 FGNavList *dmelist = new FGNavList;
968 FGNavList *tacanlist = new FGNavList;
969 FGNavList *carrierlist = new FGNavList;
970 FGTACANList *channellist = new FGTACANList;
972 globals->set_navlist( navlist );
973 globals->set_loclist( loclist );
974 globals->set_gslist( gslist );
975 globals->set_dmelist( dmelist );
976 globals->set_tacanlist( tacanlist );
977 globals->set_carrierlist( carrierlist );
978 globals->set_channellist( channellist );
980 if ( !fgNavDBInit(navlist, loclist, gslist, dmelist, tacanlist, carrierlist, channellist) ) {
981 SG_LOG( SG_GENERAL, SG_ALERT,
982 "Problems loading one or more navigational database" );
985 SG_LOG(SG_GENERAL, SG_INFO, " Fixes");
986 SGPath p_fix( globals->get_fg_root() );
987 p_fix.append( "Navaids/fix.dat" );
989 fixlist.init( p_fix ); // adds fixes to the DB in positioned.cxx
991 SG_LOG(SG_GENERAL, SG_INFO, " Airways");
992 flightgear::Airway::load();
998 // Set the initial position based on presets (or defaults)
999 bool fgInitPosition() {
1000 // cout << "fgInitPosition()" << endl;
1001 double gs = fgGetDouble("/sim/presets/glideslope-deg")
1002 * SG_DEGREES_TO_RADIANS ;
1003 double od = fgGetDouble("/sim/presets/offset-distance-nm");
1004 double alt = fgGetDouble("/sim/presets/altitude-ft");
1006 bool set_pos = false;
1008 // If glideslope is specified, then calculate offset-distance or
1009 // altitude relative to glide slope if either of those was not
1011 if ( fabs( gs ) > 0.01 ) {
1012 fgSetDistOrAltFromGlideSlope();
1016 // If we have an explicit, in-range lon/lat, don't change it, just use it.
1017 // If not, check for an airport-id and use that.
1018 // If not, default to the middle of the KSFO field.
1019 // The default values for lon/lat are deliberately out of range
1020 // so that the airport-id can take effect; valid lon/lat will
1021 // override airport-id, however.
1022 double lon_deg = fgGetDouble("/sim/presets/longitude-deg");
1023 double lat_deg = fgGetDouble("/sim/presets/latitude-deg");
1024 if ( lon_deg >= -180.0 && lon_deg <= 180.0
1025 && lat_deg >= -90.0 && lat_deg <= 90.0 )
1030 string apt = fgGetString("/sim/presets/airport-id");
1031 string rwy_no = fgGetString("/sim/presets/runway");
1032 bool rwy_req = fgGetBool("/sim/presets/runway-requested");
1033 string vor = fgGetString("/sim/presets/vor-id");
1034 double vor_freq = fgGetDouble("/sim/presets/vor-freq");
1035 string ndb = fgGetString("/sim/presets/ndb-id");
1036 double ndb_freq = fgGetDouble("/sim/presets/ndb-freq");
1037 string carrier = fgGetString("/sim/presets/carrier");
1038 string parkpos = fgGetString("/sim/presets/parkpos");
1039 string fix = fgGetString("/sim/presets/fix");
1040 SGPropertyNode *hdg_preset = fgGetNode("/sim/presets/heading-deg", true);
1041 double hdg = hdg_preset->getDoubleValue();
1043 // save some start parameters, so that we can later say what the
1044 // user really requested. TODO generalize that and move it to options.cxx
1045 static bool start_options_saved = false;
1046 if (!start_options_saved) {
1047 start_options_saved = true;
1048 SGPropertyNode *opt = fgGetNode("/sim/startup/options", true);
1050 opt->setDoubleValue("latitude-deg", lat_deg);
1051 opt->setDoubleValue("longitude-deg", lon_deg);
1052 opt->setDoubleValue("heading-deg", hdg);
1053 opt->setStringValue("airport", apt.c_str());
1054 opt->setStringValue("runway", rwy_no.c_str());
1058 hdg = fgGetDouble("/environment/config/boundary/entry/wind-from-heading-deg", 270);
1060 if ( !set_pos && !apt.empty() && !parkpos.empty() ) {
1061 // An airport + parking position is requested
1062 if ( fgSetPosFromAirportIDandParkpos( apt, parkpos ) ) {
1063 // set tower position
1064 fgSetString("/sim/airport/closest-airport-id", apt.c_str());
1065 fgSetString("/sim/tower/airport-id", apt.c_str());
1070 if ( !set_pos && !apt.empty() && !rwy_no.empty() ) {
1071 // An airport + runway is requested
1072 if ( fgSetPosFromAirportIDandRwy( apt, rwy_no, rwy_req ) ) {
1073 // set tower position (a little off the heading for single
1075 fgSetString("/sim/airport/closest-airport-id", apt.c_str());
1076 fgSetString("/sim/tower/airport-id", apt.c_str());
1081 if ( !set_pos && !apt.empty() ) {
1082 // An airport is requested (find runway closest to hdg)
1083 if ( fgSetPosFromAirportIDandHdg( apt, hdg ) ) {
1084 // set tower position (a little off the heading for single
1086 fgSetString("/sim/airport/closest-airport-id", apt.c_str());
1087 fgSetString("/sim/tower/airport-id", apt.c_str());
1092 if (hdg_preset->getDoubleValue() > 9990.0)
1093 hdg_preset->setDoubleValue(hdg);
1095 if ( !set_pos && !vor.empty() ) {
1096 // a VOR is requested
1097 if ( fgSetPosFromNAV( vor, vor_freq, FGPositioned::VOR ) ) {
1102 if ( !set_pos && !ndb.empty() ) {
1103 // an NDB is requested
1104 if ( fgSetPosFromNAV( ndb, ndb_freq, FGPositioned::NDB ) ) {
1109 if ( !set_pos && !carrier.empty() ) {
1110 // an aircraft carrier is requested
1111 if ( fgSetPosFromCarrier( carrier, parkpos ) ) {
1116 if ( !set_pos && !fix.empty() ) {
1117 // a Fix is requested
1118 if ( fgSetPosFromFix( fix ) ) {
1124 // No lon/lat specified, no airport specified, default to
1125 // middle of KSFO field.
1126 fgSetDouble("/sim/presets/longitude-deg", -122.374843);
1127 fgSetDouble("/sim/presets/latitude-deg", 37.619002);
1130 fgSetDouble( "/position/longitude-deg",
1131 fgGetDouble("/sim/presets/longitude-deg") );
1132 fgSetDouble( "/position/latitude-deg",
1133 fgGetDouble("/sim/presets/latitude-deg") );
1134 fgSetDouble( "/orientation/heading-deg", hdg_preset->getDoubleValue());
1136 // determine if this should be an on-ground or in-air start
1137 if ((fabs(gs) > 0.01 || fabs(od) > 0.1 || alt > 0.1) && carrier.empty()) {
1138 fgSetBool("/sim/presets/onground", false);
1140 fgSetBool("/sim/presets/onground", true);
1147 // General house keeping initializations
1148 bool fgInitGeneral() {
1151 SG_LOG( SG_GENERAL, SG_INFO, "General Initialization" );
1152 SG_LOG( SG_GENERAL, SG_INFO, "======= ==============" );
1154 root = globals->get_fg_root();
1155 if ( ! root.length() ) {
1156 // No root path set? Then bail ...
1157 SG_LOG( SG_GENERAL, SG_ALERT,
1158 "Cannot continue without a path to the base package "
1159 << "being defined." );
1162 SG_LOG( SG_GENERAL, SG_INFO, "FG_ROOT = " << '"' << root << '"' << endl );
1164 globals->set_browser(fgGetString("/sim/startup/browser-app", "firefox %u"));
1166 char buf[512], *cwd = getcwd(buf, 511);
1168 SGPropertyNode *curr = fgGetNode("/sim", true);
1169 curr->removeChild("fg-current", 0, false);
1170 curr = curr->getChild("fg-current", 0, true);
1171 curr->setStringValue(cwd ? cwd : "");
1172 curr->setAttribute(SGPropertyNode::WRITE, false);
1174 fgSetBool("/sim/startup/stdout-to-terminal", isatty(1) != 0 );
1175 fgSetBool("/sim/startup/stderr-to-terminal", isatty(2) != 0 );
1179 // This is the top level init routine which calls all the other
1180 // initialization routines. If you are adding a subsystem to flight
1181 // gear, its initialization call should located in this routine.
1182 // Returns non-zero if a problem encountered.
1183 bool fgInitSubsystems() {
1185 SG_LOG( SG_GENERAL, SG_INFO, "Initialize Subsystems");
1186 SG_LOG( SG_GENERAL, SG_INFO, "========== ==========");
1188 ////////////////////////////////////////////////////////////////////
1189 // Initialize the sound subsystem.
1190 ////////////////////////////////////////////////////////////////////
1191 // Sound manager uses an own subsystem group "SOUND" which is the last
1192 // to be updated in every loop.
1193 // Sound manager is updated last so it can use the CPU while the GPU
1194 // is processing the scenery (doubled the frame-rate for me) -EMH-
1195 globals->add_subsystem("sound", new SGSoundMgr, SGSubsystemMgr::SOUND);
1197 ////////////////////////////////////////////////////////////////////
1198 // Initialize the event manager subsystem.
1199 ////////////////////////////////////////////////////////////////////
1201 globals->get_event_mgr()->init();
1202 globals->get_event_mgr()->setRealtimeProperty(fgGetNode("/sim/time/delta-realtime-sec", true));
1204 ////////////////////////////////////////////////////////////////////
1205 // Initialize the property interpolator subsystem. Put into the INIT
1206 // group because the "nasal" subsystem may need it at GENERAL take-down.
1207 ////////////////////////////////////////////////////////////////////
1208 globals->add_subsystem("interpolator", new SGInterpolator, SGSubsystemMgr::INIT);
1211 ////////////////////////////////////////////////////////////////////
1212 // Add the FlightGear property utilities.
1213 ////////////////////////////////////////////////////////////////////
1214 globals->add_subsystem("properties", new FGProperties);
1217 ////////////////////////////////////////////////////////////////////
1218 // Add the performance monitoring system.
1219 ////////////////////////////////////////////////////////////////////
1220 globals->add_subsystem("performance-mon",
1221 new SGPerformanceMonitor(globals->get_subsystem_mgr(),
1222 fgGetNode("/sim/performance-monitor", true)));
1224 ////////////////////////////////////////////////////////////////////
1225 // Initialize the material property subsystem.
1226 ////////////////////////////////////////////////////////////////////
1228 SGPath mpath( globals->get_fg_root() );
1229 mpath.append( fgGetString("/sim/rendering/materials-file") );
1230 if ( ! globals->get_matlib()->load(globals->get_fg_root(), mpath.str(),
1231 globals->get_props()) ) {
1232 SG_LOG( SG_GENERAL, SG_ALERT,
1233 "Error loading materials file " << mpath.str() );
1238 ////////////////////////////////////////////////////////////////////
1239 // Initialize the scenery management subsystem.
1240 ////////////////////////////////////////////////////////////////////
1242 globals->get_scenery()->get_scene_graph()
1243 ->addChild(simgear::Particles::getCommonRoot());
1244 simgear::GlobalParticleCallback::setSwitch(fgGetNode("/sim/rendering/particles", true));
1246 ////////////////////////////////////////////////////////////////////
1247 // Initialize the flight model subsystem.
1248 ////////////////////////////////////////////////////////////////////
1250 globals->add_subsystem("flight", new FDMShell, SGSubsystemMgr::FDM);
1252 ////////////////////////////////////////////////////////////////////
1253 // Initialize the weather subsystem.
1254 ////////////////////////////////////////////////////////////////////
1256 // Initialize the weather modeling subsystem
1257 globals->add_subsystem("environment", new FGEnvironmentMgr);
1258 globals->add_subsystem("ephemeris", new Ephemeris);
1260 ////////////////////////////////////////////////////////////////////
1261 // Initialize the aircraft systems and instrumentation (before the
1263 ////////////////////////////////////////////////////////////////////
1265 globals->add_subsystem("instrumentation", new FGInstrumentMgr, SGSubsystemMgr::FDM);
1266 globals->add_subsystem("systems", new FGSystemMgr, SGSubsystemMgr::FDM);
1268 ////////////////////////////////////////////////////////////////////
1269 // Initialize the XML Autopilot subsystem.
1270 ////////////////////////////////////////////////////////////////////
1272 globals->add_subsystem( "xml-autopilot", FGXMLAutopilotGroup::createInstance(), SGSubsystemMgr::FDM );
1273 globals->add_subsystem( "route-manager", new FGRouteMgr );
1275 ////////////////////////////////////////////////////////////////////
1276 // Initialize the Input-Output subsystem
1277 ////////////////////////////////////////////////////////////////////
1278 globals->add_subsystem( "io", new FGIO );
1280 ////////////////////////////////////////////////////////////////////
1281 // Create and register the logger.
1282 ////////////////////////////////////////////////////////////////////
1284 globals->add_subsystem("logger", new FGLogger);
1286 ////////////////////////////////////////////////////////////////////
1287 // Create and register the XML GUI.
1288 ////////////////////////////////////////////////////////////////////
1290 globals->add_subsystem("gui", new NewGUI, SGSubsystemMgr::INIT);
1292 //////////////////////////////////////////////////////////////////////
1293 // Initialize the 2D cloud subsystem.
1294 ////////////////////////////////////////////////////////////////////
1295 fgGetBool("/sim/rendering/bump-mapping", false);
1299 ////////////////////////////////////////////////////////////////////
1300 // Initialise the ATC Manager
1301 // Note that this is old stuff, but might be necessesary for the
1302 // current ATIS implementation. Therefore, leave it in here
1303 // until the ATIS system is ported over to make use of the ATIS
1304 // sub system infrastructure.
1305 ////////////////////////////////////////////////////////////////////
1307 globals->add_subsystem("ATC-old", new FGATCMgr, SGSubsystemMgr::INIT);
1309 ////////////////////////////////////////////////////////////////////
1310 // Initialize the ATC subsystem
1311 ////////////////////////////////////////////////////////////////////
1312 globals->add_subsystem("ATC", new FGATCManager, SGSubsystemMgr::POST_FDM);
1313 ////////////////////////////////////////////////////////////////////
1314 // Initialise the ATIS Subsystem
1315 ////////////////////////////////////////////////////////////////////
1316 //globals->add_subsystem("atis", new FGAtisManager, SGSubsystemMgr::POST_FDM);
1319 ////////////////////////////////////////////////////////////////////
1320 // Initialize multiplayer subsystem
1321 ////////////////////////////////////////////////////////////////////
1323 globals->add_subsystem("mp", new FGMultiplayMgr, SGSubsystemMgr::POST_FDM);
1325 ////////////////////////////////////////////////////////////////////
1326 // Initialise the AI Model Manager
1327 ////////////////////////////////////////////////////////////////////
1328 SG_LOG(SG_GENERAL, SG_INFO, " AI Model Manager");
1329 globals->add_subsystem("ai-model", new FGAIManager, SGSubsystemMgr::POST_FDM);
1330 globals->add_subsystem("submodel-mgr", new FGSubmodelMgr, SGSubsystemMgr::POST_FDM);
1333 // It's probably a good idea to initialize the top level traffic manager
1334 // After the AI and ATC systems have been initialized properly.
1335 // AI Traffic manager
1336 globals->add_subsystem("traffic-manager", new FGTrafficManager, SGSubsystemMgr::POST_FDM);
1338 ////////////////////////////////////////////////////////////////////
1339 // Add a new 2D panel.
1340 ////////////////////////////////////////////////////////////////////
1342 string panel_path(fgGetString("/sim/panel/path"));
1343 if (!panel_path.empty()) {
1344 FGPanel* p = fgReadPanel(panel_path);
1346 globals->set_current_panel(p);
1349 SG_LOG( SG_INPUT, SG_INFO, "Loaded new panel from " << panel_path );
1351 SG_LOG( SG_INPUT, SG_ALERT,
1352 "Error reading new panel from " << panel_path );
1356 ////////////////////////////////////////////////////////////////////
1357 // Initialize the controls subsystem.
1358 ////////////////////////////////////////////////////////////////////
1360 globals->get_controls()->init();
1361 globals->get_controls()->bind();
1364 ////////////////////////////////////////////////////////////////////
1365 // Initialize the input subsystem.
1366 ////////////////////////////////////////////////////////////////////
1368 globals->add_subsystem("input", new FGInput);
1371 ////////////////////////////////////////////////////////////////////
1372 // Initialize the replay subsystem
1373 ////////////////////////////////////////////////////////////////////
1374 globals->add_subsystem("replay", new FGReplay);
1376 #ifdef ENABLE_AUDIO_SUPPORT
1377 ////////////////////////////////////////////////////////////////////
1378 // Initialize the sound-effects subsystem.
1379 ////////////////////////////////////////////////////////////////////
1380 globals->add_subsystem("voice", new FGVoiceMgr, SGSubsystemMgr::DISPLAY);
1383 ////////////////////////////////////////////////////////////////////
1384 // Initialize the lighting subsystem.
1385 ////////////////////////////////////////////////////////////////////
1387 globals->add_subsystem("lighting", new FGLight, SGSubsystemMgr::DISPLAY);
1389 // ordering here is important : Nasal (via events), then models, then views
1390 globals->add_subsystem("events", globals->get_event_mgr(), SGSubsystemMgr::DISPLAY);
1392 FGAircraftModel* acm = new FGAircraftModel;
1393 globals->set_aircraft_model(acm);
1394 globals->add_subsystem("aircraft-model", acm, SGSubsystemMgr::DISPLAY);
1396 FGModelMgr* mm = new FGModelMgr;
1397 globals->set_model_mgr(mm);
1398 globals->add_subsystem("model-manager", mm, SGSubsystemMgr::DISPLAY);
1400 FGViewMgr *viewmgr = new FGViewMgr;
1401 globals->set_viewmgr( viewmgr );
1402 globals->add_subsystem("view-manager", viewmgr, SGSubsystemMgr::DISPLAY);
1404 globals->add_subsystem("tile-manager", globals->get_tile_mgr(),
1405 SGSubsystemMgr::DISPLAY);
1407 ////////////////////////////////////////////////////////////////////
1408 // Bind and initialize subsystems.
1409 ////////////////////////////////////////////////////////////////////
1411 globals->get_subsystem_mgr()->bind();
1412 globals->get_subsystem_mgr()->init();
1414 ////////////////////////////////////////////////////////////////////////
1415 // Initialize the Nasal interpreter.
1416 // Do this last, so that the loaded scripts see initialized state
1417 ////////////////////////////////////////////////////////////////////////
1418 FGNasalSys* nasal = new FGNasalSys();
1419 globals->add_subsystem("nasal", nasal, SGSubsystemMgr::INIT);
1422 // initialize methods that depend on other subsystems.
1423 globals->get_subsystem_mgr()->postinit();
1425 ////////////////////////////////////////////////////////////////////////
1426 // End of subsystem initialization.
1427 ////////////////////////////////////////////////////////////////////
1429 fgSetBool("/sim/initialized", true);
1431 SG_LOG( SG_GENERAL, SG_INFO, endl);
1433 // Save the initial state for future
1435 globals->saveInitialState();
1440 // Reset: this is what the 'reset' command (and hence, GUI) is attached to
1441 void fgReInitSubsystems()
1443 static const SGPropertyNode *master_freeze
1444 = fgGetNode("/sim/freeze/master");
1446 SG_LOG( SG_GENERAL, SG_INFO, "fgReInitSubsystems()");
1448 // setup state to begin re-init
1449 bool freeze = master_freeze->getBoolValue();
1451 fgSetBool("/sim/freeze/master", true);
1454 fgSetBool("/sim/signals/reinit", true);
1455 fgSetBool("/sim/crashed", false);
1457 // do actual re-init steps
1458 globals->get_subsystem("flight")->unbind();
1460 // reset control state, before restoring initial state; -set or config files
1461 // may specify values for flaps, trim tabs, magnetos, etc
1462 globals->get_controls()->reset_all();
1464 globals->restoreInitialState();
1466 // update our position based on current presets
1469 // Force reupdating the positions of the ai 3d models. They are used for
1470 // initializing ground level for the FDM.
1471 globals->get_subsystem("ai-model")->reinit();
1473 // Initialize the FDM
1474 globals->get_subsystem("flight")->reinit();
1476 // reset replay buffers
1477 globals->get_subsystem("replay")->reinit();
1479 // reload offsets from config defaults
1480 globals->get_viewmgr()->reinit();
1482 globals->get_subsystem("time")->reinit();
1484 // need to bind FDMshell again, since we manually unbound it above...
1485 globals->get_subsystem("flight")->bind();
1487 // setup state to end re-init
1488 fgSetBool("/sim/signals/reinit", false);
1490 fgSetBool("/sim/freeze/master", false);
1492 fgSetBool("/sim/sceneryloaded",false);
1496 ///////////////////////////////////////////////////////////////////////////////
1497 // helper object to implement the --show-aircraft command.
1498 // resides here so we can share the fgFindAircraftInDir template above,
1499 // and hence ensure this command lists exectly the same aircraft as the normal
1506 _minStatus = getNumMaturity(fgGetString("/sim/aircraft-min-status", "all"));
1510 void show(const SGPath& path)
1512 fgFindAircraftInDir(path, this, &ShowAircraft::processAircraft);
1514 std::sort(_aircraft.begin(), _aircraft.end(), ciLessLibC());
1515 SG_LOG( SG_GENERAL, SG_ALERT, "" ); // To popup the console on Windows
1516 cout << "Available aircraft:" << endl;
1517 for ( unsigned int i = 0; i < _aircraft.size(); i++ ) {
1518 cout << _aircraft[i] << endl;
1523 bool processAircraft(const SGPath& path)
1525 SGPropertyNode root;
1527 readProperties(path.str(), &root);
1528 } catch (sg_exception& ) {
1533 string descStr(" ");
1534 descStr += path.file();
1535 // trim common suffix from file names
1536 int nPos = descStr.rfind("-set.xml");
1537 if (nPos == (int)(descStr.size() - 8)) {
1538 descStr.resize(nPos);
1541 SGPropertyNode *node = root.getNode("sim");
1543 SGPropertyNode* desc = node->getNode("description");
1544 // if a status tag is found, read it in
1545 if (node->hasValue("status")) {
1546 maturity = getNumMaturity(node->getStringValue("status"));
1550 if (descStr.size() <= 27+3) {
1551 descStr.append(29+3-descStr.size(), ' ');
1554 descStr.append( 32, ' ');
1556 descStr += desc->getStringValue();
1558 } // of have 'sim' node
1560 if (maturity < _minStatus) {
1564 _aircraft.push_back(descStr);
1569 int getNumMaturity(const char * str)
1571 // changes should also be reflected in $FG_ROOT/data/options.xml &
1572 // $FG_ROOT/data/Translations/string-default.xml
1573 const char* levels[] = {"alpha","beta","early-production","production"};
1575 if (!strcmp(str, "all")) {
1579 for (size_t i=0; i<(sizeof(levels)/sizeof(levels[0]));i++)
1580 if (strcmp(str,levels[i])==0)
1586 // recommended in Meyers, Effective STL when internationalization and embedded
1587 // NULLs aren't an issue. Much faster than the STL or Boost lex versions.
1588 struct ciLessLibC : public std::binary_function<string, string, bool>
1590 bool operator()(const std::string &lhs, const std::string &rhs) const
1592 return strcasecmp(lhs.c_str(), rhs.c_str()) < 0 ? 1 : 0;
1597 string_list _aircraft;
1600 void fgShowAircraft(const SGPath &path)
1606 cout << "Hit a key to continue..." << endl;