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/misc/sg_path.hxx>
60 #include <simgear/misc/interpolator.hxx>
61 #include <simgear/scene/material/matlib.hxx>
62 #include <simgear/scene/model/particles.hxx>
63 #include <simgear/sound/soundmgr_openal.hxx>
64 #include <simgear/timing/sg_time.hxx>
65 #include <simgear/timing/lowleveltime.h>
67 #include <Aircraft/aircraft.hxx>
68 #include <Aircraft/controls.hxx>
69 #include <Aircraft/replay.hxx>
70 #include <Airports/apt_loader.hxx>
71 #include <Airports/runways.hxx>
72 #include <Airports/simple.hxx>
73 #include <Airports/dynamics.hxx>
75 #include <AIModel/AIManager.hxx>
78 # include <ATCDCL/ATCmgr.hxx>
79 # include <ATCDCL/AIMgr.hxx>
80 # include "ATCDCL/commlist.hxx"
82 # include "ATC/atcutils.hxx"
85 #include <Autopilot/route_mgr.hxx>
86 #include <Autopilot/autopilotgroup.hxx>
88 #include <Cockpit/cockpit.hxx>
89 #include <Cockpit/panel.hxx>
90 #include <Cockpit/panel_io.hxx>
93 #include <FDM/SP/ADA.hxx>
94 #include <FDM/SP/ACMS.hxx>
95 #include <FDM/SP/MagicCarpet.hxx>
96 #include <FDM/SP/Balloon.h>
98 #include <FDM/ExternalNet/ExternalNet.hxx>
99 #include <FDM/ExternalPipe/ExternalPipe.hxx>
100 #include <FDM/JSBSim/JSBSim.hxx>
101 #include <FDM/LaRCsim/LaRCsim.hxx>
102 #include <FDM/UFO.hxx>
103 #include <FDM/NullFDM.hxx>
104 #include <FDM/YASim/YASim.hxx>
105 #include <GUI/new_gui.hxx>
106 #include <Include/general.hxx>
107 #include <Input/input.hxx>
108 #include <Instrumentation/instrument_mgr.hxx>
109 #include <Model/acmodel.hxx>
110 #include <AIModel/submodel.hxx>
111 #include <AIModel/AIManager.hxx>
112 #include <Navaids/navdb.hxx>
113 #include <Navaids/navlist.hxx>
114 #include <Navaids/fix.hxx>
115 #include <Navaids/fixlist.hxx>
116 #include <Scenery/scenery.hxx>
117 #include <Scenery/tilemgr.hxx>
118 #include <Scripting/NasalSys.hxx>
119 #include <Sound/voice.hxx>
120 #include <Systems/system_mgr.hxx>
121 #include <Time/light.hxx>
122 #include <Time/sunsolver.hxx>
123 #include <Time/tmp.hxx>
124 #include <Traffic/TrafficMgr.hxx>
125 #include <MultiPlayer/multiplaymgr.hxx>
127 #include <Environment/environment_mgr.hxx>
128 #include <Environment/ridge_lift.hxx>
130 #include "fg_init.hxx"
132 #include "fg_commands.hxx"
133 #include "fg_props.hxx"
134 #include "options.hxx"
135 #include "globals.hxx"
136 #include "logger.hxx"
137 #include "renderer.hxx"
138 #include "viewmgr.hxx"
143 # include <CoreFoundation/CoreFoundation.h>
147 using namespace boost::algorithm;
149 extern const char *default_root;
152 // Scan the command line options for the specified option and return
154 static string fgScanForOption( const string& option, int argc, char **argv ) {
157 if (hostname == NULL)
160 gethostname(_hostname, 256);
161 hostname = strdup(_hostname);
162 free_hostname = true;
165 SG_LOG(SG_GENERAL, SG_INFO, "Scanning command line for: " << option );
167 int len = option.length();
170 SG_LOG( SG_GENERAL, SG_DEBUG, "argv[" << i << "] = " << argv[i] );
172 string arg = argv[i];
173 if ( arg.find( option ) == 0 ) {
174 return arg.substr( len );
184 // Scan the user config files for the specified option and return
186 static string fgScanForOption( const string& option, const string& path ) {
187 sg_gzifstream in( path );
188 if ( !in.is_open() ) {
192 SG_LOG( SG_GENERAL, SG_INFO, "Scanning " << path << " for: " << option );
194 int len = option.length();
197 while ( ! in.eof() ) {
199 getline( in, line, '\n' );
201 // catch extraneous (DOS) line ending character
202 if ( line[line.length() - 1] < 32 ) {
203 line = line.substr( 0, line.length()-1 );
206 if ( line.find( option ) == 0 ) {
207 return line.substr( len );
216 // Scan the user config files for the specified option and return
218 static string fgScanForOption( const string& option ) {
221 #if defined( unix ) || defined( __CYGWIN__ )
222 // Next check home directory for .fgfsrc.hostname file
224 if ( homedir != NULL ) {
225 SGPath config( homedir );
226 config.append( ".fgfsrc" );
227 config.concat( "." );
228 config.concat( hostname );
229 arg = fgScanForOption( option, config.str() );
234 // Next check home directory for .fgfsrc file
236 if ( homedir != NULL ) {
237 SGPath config( homedir );
238 config.append( ".fgfsrc" );
239 arg = fgScanForOption( option, config.str() );
244 // Check for $fg_root/system.fgfsrc
245 SGPath config( globals->get_fg_root() );
246 config.append( "system.fgfsrc" );
247 arg = fgScanForOption( option, config.str() );
254 // Read in configuration (files and command line options) but only set
256 bool fgInitFGRoot ( int argc, char **argv ) {
259 // First parse command line options looking for --fg-root=, this
260 // will override anything specified in a config file
261 root = fgScanForOption( "--fg-root=", argc, argv);
263 // Check in one of the user configuration files.
265 root = fgScanForOption( "--fg-root=" );
267 // Next check if fg-root is set as an env variable
268 if ( root.empty() ) {
269 char *envp = ::getenv( "FG_ROOT" );
270 if ( envp != NULL ) {
275 // Otherwise, default to a random compiled-in location if we can't
276 // find fg-root any other way.
277 if ( root.empty() ) {
278 #if defined( __CYGWIN__ )
280 #elif defined( _WIN32 )
282 #elif defined(__APPLE__)
284 The following code looks for the base package inside the application
285 bundle, in the standard Contents/Resources location.
287 CFURLRef resourcesUrl = CFBundleCopyResourcesDirectoryURL(CFBundleGetMainBundle());
289 // look for a 'data' subdir
290 CFURLRef dataDir = CFURLCreateCopyAppendingPathComponent(NULL, resourcesUrl, CFSTR("data"), true);
292 // now convert down to a path, and the a c-string
293 CFStringRef path = CFURLCopyFileSystemPath(dataDir, kCFURLPOSIXPathStyle);
294 root = CFStringGetCStringPtr(path, CFStringGetSystemEncoding());
296 CFRelease(resourcesUrl);
304 SG_LOG(SG_INPUT, SG_INFO, "fg_root = " << root );
305 globals->set_fg_root(root);
311 // Read in configuration (files and command line options) but only set
313 bool fgInitFGAircraft ( int argc, char **argv ) {
316 // First parse command line options looking for --aircraft=, this
317 // will override anything specified in a config file
318 aircraft = fgScanForOption( "--aircraft=", argc, argv );
319 if ( aircraft.empty() ) {
320 // check synonym option
321 aircraft = fgScanForOption( "--vehicle=", argc, argv );
324 // Check in one of the user configuration files.
325 if ( aircraft.empty() ) {
326 aircraft = fgScanForOption( "--aircraft=" );
328 if ( aircraft.empty() ) {
329 aircraft = fgScanForOption( "--vehicle=" );
332 // if an aircraft was specified, set the property name
333 if ( !aircraft.empty() ) {
334 SG_LOG(SG_INPUT, SG_INFO, "aircraft = " << aircraft );
335 fgSetString("/sim/aircraft", aircraft.c_str() );
337 SG_LOG(SG_INPUT, SG_INFO, "No user specified aircraft, using default" );
344 // Return the current base package version
345 string fgBasePackageVersion() {
346 SGPath base_path( globals->get_fg_root() );
347 base_path.append("version");
349 sg_gzifstream in( base_path.str() );
350 if ( !in.is_open() ) {
351 SGPath old_path( globals->get_fg_root() );
352 old_path.append( "Thanks" );
353 sg_gzifstream old( old_path.str() );
354 if ( !old.is_open() ) {
357 return "[old version]";
368 // Initialize the localization
369 SGPropertyNode *fgInitLocale(const char *language) {
370 SGPropertyNode *c_node = NULL, *d_node = NULL;
371 SGPropertyNode *intl = fgGetNode("/sim/intl");
373 SG_LOG(SG_GENERAL, SG_INFO, "Selecting language: " << language );
375 // localization not defined
380 // Select the proper language from the list
382 vector<SGPropertyNode_ptr> locale = intl->getChildren("locale");
383 for (unsigned int i = 0; i < locale.size(); i++) {
385 vector<SGPropertyNode_ptr> lang = locale[i]->getChildren("lang");
386 for (unsigned int j = 0; j < lang.size(); j++) {
388 if (!strcmp(lang[j]->getStringValue(), language)) {
397 d_node = intl->getChild("locale");
401 // Check for localized font
402 SGPropertyNode *font_n = c_node->getNode("font", true);
403 if ( !strcmp(font_n->getStringValue(), "") )
404 font_n->setStringValue(d_node->getStringValue("font", "typewriter.txf"));
408 // Load the default strings
410 SGPath d_path( globals->get_fg_root() );
412 const char *d_path_str = d_node->getStringValue("strings");
414 SG_LOG(SG_GENERAL, SG_ALERT, "No path in " << d_node->getPath() << "/strings.");
418 d_path.append(d_path_str);
419 SG_LOG(SG_GENERAL, SG_INFO, "Reading localized strings from " << d_path.str());
421 SGPropertyNode *strings = c_node->getNode("strings");
423 readProperties(d_path.str(), strings);
424 } catch (const sg_exception &) {
425 SG_LOG(SG_GENERAL, SG_ALERT, "Unable to read the localized strings");
430 // Load the language specific strings
432 if (c_node != d_node) {
433 SGPath c_path( globals->get_fg_root() );
435 const char *c_path_str = c_node->getStringValue("strings");
437 SG_LOG(SG_GENERAL, SG_ALERT, "No path in " << c_node->getPath() << "/strings");
441 c_path.append(c_path_str);
442 SG_LOG(SG_GENERAL, SG_INFO, "Reading localized strings from " << c_path.str());
445 readProperties(c_path.str(), strings);
446 } catch (const sg_exception &) {
447 SG_LOG(SG_GENERAL, SG_ALERT,
448 "Unable to read the localized strings from " << c_path.str());
458 // Initialize the localization routines
459 bool fgDetectLanguage() {
460 const char *language = ::getenv("LANG");
462 if (language == NULL) {
463 SG_LOG(SG_GENERAL, SG_INFO, "Unable to detect the language" );
467 SGPropertyNode *locale = fgInitLocale(language);
469 SG_LOG(SG_GENERAL, SG_ALERT,
470 "No internationalization settings specified in preferences.xml" );
475 globals->set_locale( locale );
480 // Attempt to locate and parse the various non-XML config files in order
481 // from least precidence to greatest precidence
483 do_options (int argc, char ** argv)
485 // Check for $fg_root/system.fgfsrc
486 SGPath config( globals->get_fg_root() );
487 config.append( "system.fgfsrc" );
488 fgParseOptions(config.str());
490 #if defined( unix ) || defined( __CYGWIN__ )
491 config.concat( "." );
492 config.concat( hostname );
493 fgParseOptions(config.str());
496 // Check for ~/.fgfsrc
497 if ( homedir != NULL ) {
498 config.set( homedir );
499 config.append( ".fgfsrc" );
500 fgParseOptions(config.str());
503 #if defined( unix ) || defined( __CYGWIN__ )
504 // Check for ~/.fgfsrc.hostname
505 config.concat( "." );
506 config.concat( hostname );
507 fgParseOptions(config.str());
510 // Parse remaining command line options
511 // These will override anything specified in a config file
512 fgParseArgs(argc, argv);
516 static string fgFindAircraftPath( const SGPath &path, const string &aircraft,
517 SGPropertyNode *cache, int depth = 0 )
519 const int MAXDEPTH = 1;
522 ulDir *dirp = ulOpenDir(path.str().c_str());
524 cerr << "Unable to open aircraft directory '" << path.str() << '\'' << endl;
529 while ((dire = ulReadDir(dirp)) != NULL) {
531 if (depth > MAXDEPTH)
534 if (!strcmp("CVS", dire->d_name) || !strcmp(".", dire->d_name)
535 || !strcmp("..", dire->d_name) || !strcmp("AI", dire->d_name))
539 next.append(dire->d_name);
541 result = fgFindAircraftPath( next, aircraft, cache, depth + 1 );
542 if ( ! result.empty() )
546 int len = strlen(dire->d_name);
547 if (len < 9 || strcmp(dire->d_name + len - 8, "-set.xml"))
553 if (!cache->getChild("aircraft", i++, false))
556 SGPropertyNode *n, *entry = cache->getChild("aircraft", --i, true);
558 n = entry->getNode("file", true);
559 n->setStringValue(dire->d_name);
560 n->setAttribute(SGPropertyNode::USERARCHIVE, true);
562 n = entry->getNode("path", true);
563 n->setStringValue(path.str().c_str());
564 n->setAttribute(SGPropertyNode::USERARCHIVE, true);
566 if ( boost::equals(dire->d_name, aircraft.c_str(), is_iequal()) ) {
578 // Read in configuration (file and command line)
579 bool fgInitConfig ( int argc, char **argv ) {
581 // First, set some sane default values
584 // Read global preferences from $FG_ROOT/preferences.xml
585 SG_LOG(SG_INPUT, SG_INFO, "Reading global preferences");
586 fgLoadProps("preferences.xml", globals->get_props());
587 SG_LOG(SG_INPUT, SG_INFO, "Finished Reading global preferences");
589 // Detect the required language as early as possible
590 if ( !fgDetectLanguage() ) {
594 SGPropertyNode autosave;
596 char *envp = ::getenv( "APPDATA" );
598 SGPath config( envp );
599 config.append( "flightgear.org" );
601 if ( homedir != NULL ) {
602 SGPath config( homedir );
603 config.append( ".fgfs" );
605 const char *fg_home = getenv("FG_HOME");
609 SGPath home_export(config.str());
610 home_export.append("Export/dummy");
611 home_export.create_dir(0777);
613 // Set /sim/fg-home and don't allow malign code to override it until
614 // Nasal security is set up. Use FG_HOME if necessary.
615 SGPropertyNode *home = fgGetNode("/sim", true);
616 home->removeChild("fg-home", 0, false);
617 home = home->getChild("fg-home", 0, true);
618 home->setStringValue(config.c_str());
619 home->setAttribute(SGPropertyNode::WRITE, false);
621 config.append( "autosave.xml" );
622 SG_LOG(SG_INPUT, SG_INFO, "Reading user settings from " << config.str());
624 readProperties(config.str(), &autosave, SGPropertyNode::USERARCHIVE);
626 SG_LOG(SG_INPUT, SG_DEBUG, "First time reading user settings");
628 SG_LOG(SG_INPUT, SG_DEBUG, "Finished Reading user settings");
630 SGPropertyNode *cache_root = autosave.getNode("sim/startup/path-cache", true);
633 // Scan user config files and command line for a specified aircraft.
634 fgInitFGAircraft(argc, argv);
636 string aircraft = fgGetString( "/sim/aircraft", "" );
637 if ( aircraft.size() > 0 ) {
638 SGPath aircraft_search( globals->get_fg_root() );
639 aircraft_search.append( "Aircraft" );
641 string aircraft_set = aircraft + "-set.xml";
644 // check if the *-set.xml file is already in the cache
645 if (globals->get_fg_root() == cache_root->getStringValue("fg-root", "")) {
646 vector<SGPropertyNode_ptr> cache = cache_root->getChildren("aircraft");
647 for (unsigned int i = 0; i < cache.size(); i++) {
648 const char *name = cache[i]->getStringValue("file", "");
649 if (boost::equals(aircraft_set, name, is_iequal())) {
650 const char *path = cache[i]->getStringValue("path", "");
660 if (result.empty()) {
661 // prepare cache for rescan
662 SGPropertyNode *n = cache_root->getNode("fg-root", true);
663 n->setStringValue(globals->get_fg_root().c_str());
664 n->setAttribute(SGPropertyNode::USERARCHIVE, true);
665 cache_root->removeChildren("aircraft");
667 result = fgFindAircraftPath( aircraft_search, aircraft_set, cache_root );
670 if ( !result.empty() ) {
671 fgSetString( "/sim/aircraft-dir", result.c_str() );
672 SGPath full_name( result );
673 full_name.append( aircraft_set );
675 SG_LOG(SG_INPUT, SG_INFO, "Reading default aircraft: " << aircraft
676 << " from " << full_name.str());
678 readProperties( full_name.str(), globals->get_props() );
679 } catch ( const sg_exception &e ) {
680 string message = "Error reading default aircraft: ";
681 message += e.getFormattedMessage();
682 SG_LOG(SG_INPUT, SG_ALERT, message);
686 SG_LOG( SG_INPUT, SG_ALERT, "Cannot find specified aircraft: "
692 SG_LOG( SG_INPUT, SG_ALERT, "No default aircraft specified" );
695 copyProperties(&autosave, globals->get_props());
697 // parse options after loading aircraft to ensure any user
698 // overrides of defaults are honored.
699 do_options(argc, argv);
704 // Set current tower position lon/lat given an airport id
705 static bool fgSetTowerPosFromAirportID( const string& id) {
706 const FGAirport *a = fgFindAirportID( id);
708 SGGeod tower = a->getTowerLocation();
709 fgSetDouble("/sim/tower/longitude-deg", tower.getLongitudeDeg());
710 fgSetDouble("/sim/tower/latitude-deg", tower.getLatitudeDeg());
711 fgSetDouble("/sim/tower/altitude-ft", tower.getElevationFt());
719 struct FGTowerLocationListener : SGPropertyChangeListener {
720 void valueChanged(SGPropertyNode* node) {
721 const string id(node->getStringValue());
722 fgSetTowerPosFromAirportID(id);
726 void fgInitTowerLocationListener() {
727 fgGetNode("/sim/tower/airport-id", true)
728 ->addChangeListener( new FGTowerLocationListener(), true );
731 static void fgApplyStartOffset(const SGGeod& aStartPos, double aHeading, double aTargetHeading = HUGE_VAL)
733 SGGeod startPos(aStartPos);
734 if (aTargetHeading == HUGE_VAL) {
735 aTargetHeading = aHeading;
738 if ( fabs( fgGetDouble("/sim/presets/offset-distance-nm") ) > SG_EPSILON ) {
739 double offsetDistance = fgGetDouble("/sim/presets/offset-distance-nm");
740 offsetDistance *= SG_NM_TO_METER;
741 double offsetAzimuth = aHeading;
742 if ( fabs(fgGetDouble("/sim/presets/offset-azimuth-deg")) > SG_EPSILON ) {
743 offsetAzimuth = fgGetDouble("/sim/presets/offset-azimuth-deg");
744 aHeading = aTargetHeading;
749 SGGeodesy::direct(startPos, offsetAzimuth + 180, offsetDistance, offset, az2);
754 fgSetDouble("/sim/presets/longitude-deg", startPos.getLongitudeDeg() );
755 fgSetDouble("/sim/presets/latitude-deg", startPos.getLatitudeDeg() );
756 fgSetDouble("/sim/presets/heading-deg", aHeading );
758 // other code depends on the actual values being set ...
759 fgSetDouble("/position/longitude-deg", startPos.getLongitudeDeg() );
760 fgSetDouble("/position/latitude-deg", startPos.getLatitudeDeg() );
761 fgSetDouble("/orientation/heading-deg", aHeading );
764 // Set current_options lon/lat given an airport id and heading (degrees)
765 static bool fgSetPosFromAirportIDandHdg( const string& id, double tgt_hdg ) {
769 // set initial position from runway and heading
770 SG_LOG( SG_GENERAL, SG_INFO,
771 "Attempting to set starting position from airport code "
772 << id << " heading " << tgt_hdg );
774 const FGAirport* apt = fgFindAirportID(id);
775 if (!apt) return false;
776 FGRunway* r = apt->findBestRunwayForHeading(tgt_hdg);
777 fgSetString("/sim/atc/runway", r->ident().c_str());
779 SGGeod startPos = r->pointOnCenterline(fgGetDouble("/sim/airport/runways/start-offset-m", 5.0));
780 fgApplyStartOffset(startPos, r->headingDeg(), tgt_hdg);
784 // Set current_options lon/lat given an airport id and parkig position name
785 static bool fgSetPosFromAirportIDandParkpos( const string& id, const string& parkpos ) {
789 // can't see an easy way around this const_cast at the moment
790 FGAirport* apt = const_cast<FGAirport*>(fgFindAirportID(id));
792 SG_LOG( SG_GENERAL, SG_ALERT, "Failed to find airport " << id );
795 FGAirportDynamics* dcs = apt->getDynamics();
797 SG_LOG( SG_GENERAL, SG_ALERT,
798 "Failed to find parking position " << parkpos <<
799 " at airport " << id );
803 int park_index = dcs->getNrOfParkings() - 1;
804 while (park_index >= 0 && dcs->getParkingName(park_index) != parkpos) park_index--;
805 if (park_index < 0) {
806 SG_LOG( SG_GENERAL, SG_ALERT,
807 "Failed to find parking position " << parkpos <<
808 " at airport " << id );
811 FGParking* parking = dcs->getParking(park_index);
812 parking->setAvailable(false);
814 SGGeod::fromDeg(parking->getLongitude(), parking->getLatitude()),
815 parking->getHeading());
820 // Set current_options lon/lat given an airport id and runway number
821 static bool fgSetPosFromAirportIDandRwy( const string& id, const string& rwy, bool rwy_req ) {
825 // set initial position from airport and runway number
826 SG_LOG( SG_GENERAL, SG_INFO,
827 "Attempting to set starting position for "
828 << id << ":" << rwy );
830 const FGAirport* apt = fgFindAirportID(id);
832 SG_LOG( SG_GENERAL, SG_ALERT, "Failed to find airport:" << id);
836 if (!apt->hasRunwayWithIdent(rwy)) {
837 SG_LOG( SG_GENERAL, rwy_req ? SG_ALERT : SG_INFO,
838 "Failed to find runway " << rwy <<
839 " at airport " << id << ". Using default runway." );
843 FGRunway* r(apt->getRunwayByIdent(rwy));
844 fgSetString("/sim/atc/runway", r->ident().c_str());
845 SGGeod startPos = r->pointOnCenterline( fgGetDouble("/sim/airport/runways/start-offset-m", 5.0));
846 fgApplyStartOffset(startPos, r->headingDeg());
851 static void fgSetDistOrAltFromGlideSlope() {
852 // cout << "fgSetDistOrAltFromGlideSlope()" << endl;
853 string apt_id = fgGetString("/sim/presets/airport-id");
854 double gs = fgGetDouble("/sim/presets/glideslope-deg")
855 * SG_DEGREES_TO_RADIANS ;
856 double od = fgGetDouble("/sim/presets/offset-distance-nm");
857 double alt = fgGetDouble("/sim/presets/altitude-ft");
859 double apt_elev = 0.0;
860 if ( ! apt_id.empty() ) {
861 apt_elev = fgGetAirportElev( apt_id );
862 if ( apt_elev < -9990.0 ) {
869 if( fabs(gs) > 0.01 && fabs(od) > 0.1 && alt < -9990 ) {
870 // set altitude from glideslope and offset-distance
871 od *= SG_NM_TO_METER * SG_METER_TO_FEET;
872 alt = fabs(od*tan(gs)) + apt_elev;
873 fgSetDouble("/sim/presets/altitude-ft", alt);
874 fgSetBool("/sim/presets/onground", false);
875 SG_LOG( SG_GENERAL, SG_INFO, "Calculated altitude as: "
877 } else if( fabs(gs) > 0.01 && alt > 0 && fabs(od) < 0.1) {
878 // set offset-distance from glideslope and altitude
879 od = (alt - apt_elev) / tan(gs);
880 od *= -1*SG_FEET_TO_METER * SG_METER_TO_NM;
881 fgSetDouble("/sim/presets/offset-distance-nm", od);
882 fgSetBool("/sim/presets/onground", false);
883 SG_LOG( SG_GENERAL, SG_INFO, "Calculated offset distance as: "
885 } else if( fabs(gs) > 0.01 ) {
886 SG_LOG( SG_GENERAL, SG_ALERT,
887 "Glideslope given but not altitude or offset-distance." );
888 SG_LOG( SG_GENERAL, SG_ALERT, "Resetting glideslope to zero" );
889 fgSetDouble("/sim/presets/glideslope-deg", 0);
890 fgSetBool("/sim/presets/onground", true);
895 // Set current_options lon/lat given an airport id and heading (degrees)
896 static bool fgSetPosFromNAV( const string& id, const double& freq ) {
898 = globals->get_navlist()->findByIdentAndFreq( id.c_str(), freq );
901 SG_LOG( SG_GENERAL, SG_ALERT, "Failed to locate NAV = "
902 << id << ":" << freq );
906 fgApplyStartOffset(nav->geod(), fgGetDouble("/sim/presets/heading-deg"));
910 // Set current_options lon/lat given an aircraft carrier id
911 static bool fgSetPosFromCarrier( const string& carrier, const string& posid ) {
913 // set initial position from runway and heading
917 if (FGAIManager::getStartPosition(carrier, posid, geodPos, heading, uvw)) {
918 double lon = geodPos.getLongitudeDeg();
919 double lat = geodPos.getLatitudeDeg();
920 double alt = geodPos.getElevationFt();
922 SG_LOG( SG_GENERAL, SG_INFO, "Attempting to set starting position for "
923 << carrier << " at lat = " << lat << ", lon = " << lon
924 << ", alt = " << alt << ", heading = " << heading);
926 fgSetDouble("/sim/presets/longitude-deg", lon);
927 fgSetDouble("/sim/presets/latitude-deg", lat);
928 fgSetDouble("/sim/presets/altitude-ft", alt);
929 fgSetDouble("/sim/presets/heading-deg", heading);
930 fgSetDouble("/position/longitude-deg", lon);
931 fgSetDouble("/position/latitude-deg", lat);
932 fgSetDouble("/position/altitude-ft", alt);
933 fgSetDouble("/orientation/heading-deg", heading);
935 fgSetString("/sim/presets/speed-set", "UVW");
936 fgSetDouble("/velocities/uBody-fps", uvw(0));
937 fgSetDouble("/velocities/vBody-fps", uvw(1));
938 fgSetDouble("/velocities/wBody-fps", uvw(2));
939 fgSetDouble("/sim/presets/uBody-fps", uvw(0));
940 fgSetDouble("/sim/presets/vBody-fps", uvw(1));
941 fgSetDouble("/sim/presets/wBody-fps", uvw(2));
943 fgSetBool("/sim/presets/onground", true);
947 SG_LOG( SG_GENERAL, SG_ALERT, "Failed to locate aircraft carrier = "
953 // Set current_options lon/lat given an airport id and heading (degrees)
954 static bool fgSetPosFromFix( const string& id )
956 FGPositioned::TypeFilter fixFilter(FGPositioned::FIX);
957 FGPositioned* fix = FGPositioned::findNextWithPartialId(NULL, id, &fixFilter);
959 SG_LOG( SG_GENERAL, SG_ALERT, "Failed to locate fix = " << id );
963 fgApplyStartOffset(fix->geod(), fgGetDouble("/sim/presets/heading-deg"));
968 * Initialize vor/ndb/ils/fix list management and query systems (as
969 * well as simple airport db list)
974 SG_LOG(SG_GENERAL, SG_INFO, "Loading Airport Database ...");
976 SGPath aptdb( globals->get_fg_root() );
977 aptdb.append( "Airports/apt.dat" );
979 SGPath p_metar( globals->get_fg_root() );
980 p_metar.append( "Airports/metar.dat" );
982 // Initialise the frequency search map BEFORE reading
983 // the airport database:
987 current_commlist = new FGCommList;
988 current_commlist->init( globals->get_fg_root() );
989 fgAirportDBLoad( aptdb.str(), current_commlist, p_metar.str() );
991 FGNavList *navlist = new FGNavList;
992 FGNavList *loclist = new FGNavList;
993 FGNavList *gslist = new FGNavList;
994 FGNavList *dmelist = new FGNavList;
995 FGNavList *tacanlist = new FGNavList;
996 FGNavList *carrierlist = new FGNavList;
997 FGTACANList *channellist = new FGTACANList;
999 globals->set_navlist( navlist );
1000 globals->set_loclist( loclist );
1001 globals->set_gslist( gslist );
1002 globals->set_dmelist( dmelist );
1003 globals->set_tacanlist( tacanlist );
1004 globals->set_carrierlist( carrierlist );
1005 globals->set_channellist( channellist );
1007 if ( !fgNavDBInit(navlist, loclist, gslist, dmelist, tacanlist, carrierlist, channellist) ) {
1008 SG_LOG( SG_GENERAL, SG_ALERT,
1009 "Problems loading one or more navigational database" );
1012 SG_LOG(SG_GENERAL, SG_INFO, " Fixes");
1013 SGPath p_fix( globals->get_fg_root() );
1014 p_fix.append( "Navaids/fix.dat" );
1016 fixlist.init( p_fix ); // adds fixes to the DB in positioned.cxx
1018 SG_LOG(SG_GENERAL, SG_INFO, " Airways");
1019 SGPath p_awy( globals->get_fg_root() );
1020 p_awy.append( "Navaids/awy.dat" );
1021 FGAirwayNetwork *awyNet = new FGAirwayNetwork;
1022 //cerr << "Loading Airways" << endl;
1023 awyNet->load (p_awy );
1025 //cerr << "initializing airways" << endl;
1026 globals->set_airwaynet( awyNet );
1032 // Set the initial position based on presets (or defaults)
1033 bool fgInitPosition() {
1034 // cout << "fgInitPosition()" << endl;
1035 double gs = fgGetDouble("/sim/presets/glideslope-deg")
1036 * SG_DEGREES_TO_RADIANS ;
1037 double od = fgGetDouble("/sim/presets/offset-distance-nm");
1038 double alt = fgGetDouble("/sim/presets/altitude-ft");
1040 bool set_pos = false;
1042 // If glideslope is specified, then calculate offset-distance or
1043 // altitude relative to glide slope if either of those was not
1045 if ( fabs( gs ) > 0.01 ) {
1046 fgSetDistOrAltFromGlideSlope();
1050 // If we have an explicit, in-range lon/lat, don't change it, just use it.
1051 // If not, check for an airport-id and use that.
1052 // If not, default to the middle of the KSFO field.
1053 // The default values for lon/lat are deliberately out of range
1054 // so that the airport-id can take effect; valid lon/lat will
1055 // override airport-id, however.
1056 double lon_deg = fgGetDouble("/sim/presets/longitude-deg");
1057 double lat_deg = fgGetDouble("/sim/presets/latitude-deg");
1058 if ( lon_deg >= -180.0 && lon_deg <= 180.0
1059 && lat_deg >= -90.0 && lat_deg <= 90.0 )
1064 string apt = fgGetString("/sim/presets/airport-id");
1065 string rwy_no = fgGetString("/sim/presets/runway");
1066 bool rwy_req = fgGetBool("/sim/presets/runway-requested");
1067 string vor = fgGetString("/sim/presets/vor-id");
1068 double vor_freq = fgGetDouble("/sim/presets/vor-freq");
1069 string ndb = fgGetString("/sim/presets/ndb-id");
1070 double ndb_freq = fgGetDouble("/sim/presets/ndb-freq");
1071 string carrier = fgGetString("/sim/presets/carrier");
1072 string parkpos = fgGetString("/sim/presets/parkpos");
1073 string fix = fgGetString("/sim/presets/fix");
1074 SGPropertyNode *hdg_preset = fgGetNode("/sim/presets/heading-deg", true);
1075 double hdg = hdg_preset->getDoubleValue();
1077 // save some start parameters, so that we can later say what the
1078 // user really requested. TODO generalize that and move it to options.cxx
1079 static bool start_options_saved = false;
1080 if (!start_options_saved) {
1081 start_options_saved = true;
1082 SGPropertyNode *opt = fgGetNode("/sim/startup/options", true);
1084 opt->setDoubleValue("latitude-deg", lat_deg);
1085 opt->setDoubleValue("longitude-deg", lon_deg);
1086 opt->setDoubleValue("heading-deg", hdg);
1087 opt->setStringValue("airport", apt.c_str());
1088 opt->setStringValue("runway", rwy_no.c_str());
1092 hdg = fgGetDouble("/environment/config/boundary/entry/wind-from-heading-deg", 270);
1094 if ( !set_pos && !apt.empty() && !parkpos.empty() ) {
1095 // An airport + parking position is requested
1096 if ( fgSetPosFromAirportIDandParkpos( apt, parkpos ) ) {
1097 // set tower position
1098 fgSetString("/sim/tower/airport-id", apt.c_str());
1103 if ( !set_pos && !apt.empty() && !rwy_no.empty() ) {
1104 // An airport + runway is requested
1105 if ( fgSetPosFromAirportIDandRwy( apt, rwy_no, rwy_req ) ) {
1106 // set tower position (a little off the heading for single
1108 fgSetString("/sim/tower/airport-id", apt.c_str());
1113 if ( !set_pos && !apt.empty() ) {
1114 // An airport is requested (find runway closest to hdg)
1115 if ( fgSetPosFromAirportIDandHdg( apt, hdg ) ) {
1116 // set tower position (a little off the heading for single
1118 fgSetString("/sim/tower/airport-id", apt.c_str());
1123 if (hdg_preset->getDoubleValue() > 9990.0)
1124 hdg_preset->setDoubleValue(hdg);
1126 if ( !set_pos && !vor.empty() ) {
1127 // a VOR is requested
1128 if ( fgSetPosFromNAV( vor, vor_freq ) ) {
1133 if ( !set_pos && !ndb.empty() ) {
1134 // an NDB is requested
1135 if ( fgSetPosFromNAV( ndb, ndb_freq ) ) {
1140 if ( !set_pos && !carrier.empty() ) {
1141 // an aircraft carrier is requested
1142 if ( fgSetPosFromCarrier( carrier, parkpos ) ) {
1147 if ( !set_pos && !fix.empty() ) {
1148 // a Fix is requested
1149 if ( fgSetPosFromFix( fix ) ) {
1155 // No lon/lat specified, no airport specified, default to
1156 // middle of KSFO field.
1157 fgSetDouble("/sim/presets/longitude-deg", -122.374843);
1158 fgSetDouble("/sim/presets/latitude-deg", 37.619002);
1161 fgSetDouble( "/position/longitude-deg",
1162 fgGetDouble("/sim/presets/longitude-deg") );
1163 fgSetDouble( "/position/latitude-deg",
1164 fgGetDouble("/sim/presets/latitude-deg") );
1165 fgSetDouble( "/orientation/heading-deg", hdg_preset->getDoubleValue());
1167 // determine if this should be an on-ground or in-air start
1168 if ((fabs(gs) > 0.01 || fabs(od) > 0.1 || alt > 0.1) && carrier.empty()) {
1169 fgSetBool("/sim/presets/onground", false);
1171 fgSetBool("/sim/presets/onground", true);
1178 // General house keeping initializations
1179 bool fgInitGeneral() {
1182 SG_LOG( SG_GENERAL, SG_INFO, "General Initialization" );
1183 SG_LOG( SG_GENERAL, SG_INFO, "======= ==============" );
1185 root = globals->get_fg_root();
1186 if ( ! root.length() ) {
1187 // No root path set? Then bail ...
1188 SG_LOG( SG_GENERAL, SG_ALERT,
1189 "Cannot continue without a path to the base package "
1190 << "being defined." );
1193 SG_LOG( SG_GENERAL, SG_INFO, "FG_ROOT = " << '"' << root << '"' << endl );
1195 globals->set_browser(fgGetString("/sim/startup/browser-app", "firefox %u"));
1197 char buf[512], *cwd = getcwd(buf, 511);
1199 SGPropertyNode *curr = fgGetNode("/sim", true);
1200 curr->removeChild("fg-current", 0, false);
1201 curr = curr->getChild("fg-current", 0, true);
1202 curr->setStringValue(cwd ? cwd : "");
1203 curr->setAttribute(SGPropertyNode::WRITE, false);
1205 fgSetBool("/sim/startup/stdout-to-terminal", isatty(1));
1206 fgSetBool("/sim/startup/stderr-to-terminal", isatty(2));
1211 // Initialize the flight model subsystem. This just creates the
1212 // object. The actual fdm initialization is delayed until we get a
1213 // proper scenery elevation hit. This is checked for in main.cxx
1217 if ( cur_fdm_state ) {
1218 delete cur_fdm_state;
1222 double dt = 1.0 / fgGetInt("/sim/model-hz");
1223 string model = fgGetString("/sim/flight-model");
1225 if ( model == "larcsim" ) {
1226 cur_fdm_state = new FGLaRCsim( dt );
1227 } else if ( model == "jsb" ) {
1228 cur_fdm_state = new FGJSBsim( dt );
1230 } else if ( model == "ada" ) {
1231 cur_fdm_state = new FGADA( dt );
1232 } else if ( model == "acms" ) {
1233 cur_fdm_state = new FGACMS( dt );
1234 } else if ( model == "balloon" ) {
1235 cur_fdm_state = new FGBalloonSim( dt );
1236 } else if ( model == "magic" ) {
1237 cur_fdm_state = new FGMagicCarpet( dt );
1239 } else if ( model == "ufo" ) {
1240 cur_fdm_state = new FGUFO( dt );
1241 } else if ( model == "external" ) {
1242 // external is a synonym for "--fdm=null" and is
1243 // maintained here for backwards compatibility
1244 cur_fdm_state = new FGNullFDM( dt );
1245 } else if ( model.find("network") == 0 ) {
1246 string host = "localhost";
1250 string net_options = model.substr(8);
1251 string::size_type begin, end;
1254 end = net_options.find( ",", begin );
1255 if ( end != string::npos ) {
1256 host = net_options.substr(begin, end - begin);
1260 end = net_options.find( ",", begin );
1261 if ( end != string::npos ) {
1262 port1 = atoi( net_options.substr(begin, end - begin).c_str() );
1266 end = net_options.find( ",", begin );
1267 if ( end != string::npos ) {
1268 port2 = atoi( net_options.substr(begin, end - begin).c_str() );
1272 end = net_options.find( ",", begin );
1273 if ( end != string::npos ) {
1274 port3 = atoi( net_options.substr(begin, end - begin).c_str() );
1277 cur_fdm_state = new FGExternalNet( dt, host, port1, port2, port3 );
1278 } else if ( model.find("pipe") == 0 ) {
1279 // /* old */ string pipe_path = model.substr(5);
1280 // /* old */ cur_fdm_state = new FGExternalPipe( dt, pipe_path );
1281 string pipe_path = "";
1282 string pipe_protocol = "";
1283 string pipe_options = model.substr(5);
1284 string::size_type begin, end;
1287 end = pipe_options.find( ",", begin );
1288 if ( end != string::npos ) {
1289 pipe_path = pipe_options.substr(begin, end - begin);
1292 // protocol (last option)
1293 pipe_protocol = pipe_options.substr(begin);
1294 cur_fdm_state = new FGExternalPipe( dt, pipe_path, pipe_protocol );
1295 } else if ( model == "null" ) {
1296 cur_fdm_state = new FGNullFDM( dt );
1297 } else if ( model == "yasim" ) {
1298 cur_fdm_state = new YASim( dt );
1300 throw sg_exception(string("Unrecognized flight model '") + model
1301 + "', cannot init flight dynamics model.");
1305 // Initialize view parameters
1307 // force update of model so that viewer can get some data...
1308 globals->get_aircraft_model()->update(0);
1309 // run update for current view so that data is current...
1310 globals->get_viewmgr()->update(0);
1314 SGTime *fgInitTime() {
1316 static const SGPropertyNode *longitude
1317 = fgGetNode("/position/longitude-deg");
1318 static const SGPropertyNode *latitude
1319 = fgGetNode("/position/latitude-deg");
1320 static const SGPropertyNode *cur_time_override
1321 = fgGetNode("/sim/time/cur-time-override", true);
1323 SGPath zone( globals->get_fg_root() );
1324 zone.append( "Timezone" );
1325 SGTime *t = new SGTime( longitude->getDoubleValue()
1326 * SGD_DEGREES_TO_RADIANS,
1327 latitude->getDoubleValue()
1328 * SGD_DEGREES_TO_RADIANS,
1330 cur_time_override->getLongValue() );
1332 globals->set_warp_delta( 0 );
1334 t->update( 0.0, 0.0,
1335 cur_time_override->getLongValue(),
1336 globals->get_warp() );
1342 // set up a time offset (aka warp) if one is specified
1343 void fgInitTimeOffset() {
1344 static const SGPropertyNode *longitude
1345 = fgGetNode("/position/longitude-deg");
1346 static const SGPropertyNode *latitude
1347 = fgGetNode("/position/latitude-deg");
1348 static const SGPropertyNode *cur_time_override
1349 = fgGetNode("/sim/time/cur-time-override", true);
1351 // Handle potential user specified time offsets
1352 int orig_warp = globals->get_warp();
1353 SGTime *t = globals->get_time_params();
1354 time_t cur_time = t->get_cur_time();
1355 time_t currGMT = sgTimeGetGMT( gmtime(&cur_time) );
1356 time_t systemLocalTime = sgTimeGetGMT( localtime(&cur_time) );
1357 time_t aircraftLocalTime =
1358 sgTimeGetGMT( fgLocaltime(&cur_time, t->get_zonename() ) );
1360 // Okay, we now have several possible scenarios
1361 int offset = fgGetInt("/sim/startup/time-offset");
1362 string offset_type = fgGetString("/sim/startup/time-offset-type");
1365 if ( offset_type == "real" ) {
1367 } else if ( offset_type == "dawn" ) {
1368 warp = fgTimeSecondsUntilSunAngle( cur_time,
1369 longitude->getDoubleValue()
1370 * SGD_DEGREES_TO_RADIANS,
1371 latitude->getDoubleValue()
1372 * SGD_DEGREES_TO_RADIANS,
1374 } else if ( offset_type == "morning" ) {
1375 warp = fgTimeSecondsUntilSunAngle( cur_time,
1376 longitude->getDoubleValue()
1377 * SGD_DEGREES_TO_RADIANS,
1378 latitude->getDoubleValue()
1379 * SGD_DEGREES_TO_RADIANS,
1381 } else if ( offset_type == "noon" ) {
1382 warp = fgTimeSecondsUntilSunAngle( cur_time,
1383 longitude->getDoubleValue()
1384 * SGD_DEGREES_TO_RADIANS,
1385 latitude->getDoubleValue()
1386 * SGD_DEGREES_TO_RADIANS,
1388 } else if ( offset_type == "afternoon" ) {
1389 warp = fgTimeSecondsUntilSunAngle( cur_time,
1390 longitude->getDoubleValue()
1391 * SGD_DEGREES_TO_RADIANS,
1392 latitude->getDoubleValue()
1393 * SGD_DEGREES_TO_RADIANS,
1395 } else if ( offset_type == "dusk" ) {
1396 warp = fgTimeSecondsUntilSunAngle( cur_time,
1397 longitude->getDoubleValue()
1398 * SGD_DEGREES_TO_RADIANS,
1399 latitude->getDoubleValue()
1400 * SGD_DEGREES_TO_RADIANS,
1402 } else if ( offset_type == "evening" ) {
1403 warp = fgTimeSecondsUntilSunAngle( cur_time,
1404 longitude->getDoubleValue()
1405 * SGD_DEGREES_TO_RADIANS,
1406 latitude->getDoubleValue()
1407 * SGD_DEGREES_TO_RADIANS,
1409 } else if ( offset_type == "midnight" ) {
1410 warp = fgTimeSecondsUntilSunAngle( cur_time,
1411 longitude->getDoubleValue()
1412 * SGD_DEGREES_TO_RADIANS,
1413 latitude->getDoubleValue()
1414 * SGD_DEGREES_TO_RADIANS,
1416 } else if ( offset_type == "system-offset" ) {
1419 } else if ( offset_type == "gmt-offset" ) {
1420 warp = offset - (currGMT - systemLocalTime);
1422 } else if ( offset_type == "latitude-offset" ) {
1423 warp = offset - (aircraftLocalTime - systemLocalTime);
1425 } else if ( offset_type == "system" ) {
1426 warp = offset - (systemLocalTime - currGMT) - cur_time;
1427 } else if ( offset_type == "gmt" ) {
1428 warp = offset - cur_time;
1429 } else if ( offset_type == "latitude" ) {
1430 warp = offset - (aircraftLocalTime - currGMT)- cur_time;
1432 SG_LOG( SG_GENERAL, SG_ALERT,
1433 "FG_TIME::Unsupported offset type " << offset_type );
1436 globals->set_warp( orig_warp + warp );
1437 t->update( longitude->getDoubleValue() * SGD_DEGREES_TO_RADIANS,
1438 latitude->getDoubleValue() * SGD_DEGREES_TO_RADIANS,
1439 cur_time_override->getLongValue(),
1440 globals->get_warp() );
1442 SG_LOG( SG_GENERAL, SG_INFO, "After fgInitTimeOffset(): warp = "
1443 << globals->get_warp() );
1447 // This is the top level init routine which calls all the other
1448 // initialization routines. If you are adding a subsystem to flight
1449 // gear, its initialization call should located in this routine.
1450 // Returns non-zero if a problem encountered.
1451 bool fgInitSubsystems() {
1452 // static const SGPropertyNode *longitude
1453 // = fgGetNode("/sim/presets/longitude-deg");
1454 // static const SGPropertyNode *latitude
1455 // = fgGetNode("/sim/presets/latitude-deg");
1456 // static const SGPropertyNode *altitude
1457 // = fgGetNode("/sim/presets/altitude-ft");
1459 SG_LOG( SG_GENERAL, SG_INFO, "Initialize Subsystems");
1460 SG_LOG( SG_GENERAL, SG_INFO, "========== ==========");
1462 ////////////////////////////////////////////////////////////////////
1463 // Initialize the event manager subsystem.
1464 ////////////////////////////////////////////////////////////////////
1466 globals->get_event_mgr()->init();
1467 globals->get_event_mgr()->setRealtimeProperty(fgGetNode("/sim/time/delta-realtime-sec", true));
1469 ////////////////////////////////////////////////////////////////////
1470 // Initialize the property interpolator subsystem. Put into the INIT
1471 // group because the "nasal" subsystem may need it at GENERAL take-down.
1472 ////////////////////////////////////////////////////////////////////
1473 globals->add_subsystem("interpolator", new SGInterpolator, SGSubsystemMgr::INIT);
1476 ////////////////////////////////////////////////////////////////////
1477 // Add the FlightGear property utilities.
1478 ////////////////////////////////////////////////////////////////////
1479 globals->add_subsystem("properties", new FGProperties);
1481 ////////////////////////////////////////////////////////////////////
1482 // Initialize the material property subsystem.
1483 ////////////////////////////////////////////////////////////////////
1485 SGPath mpath( globals->get_fg_root() );
1486 mpath.append( "materials.xml" );
1487 if ( ! globals->get_matlib()->load(globals->get_fg_root(), mpath.str(),
1488 globals->get_props()) ) {
1489 SG_LOG( SG_GENERAL, SG_ALERT, "Error loading material lib!" );
1494 ////////////////////////////////////////////////////////////////////
1495 // Initialize the scenery management subsystem.
1496 ////////////////////////////////////////////////////////////////////
1498 if ( globals->get_tile_mgr()->init() ) {
1499 // Load the local scenery data
1500 double visibility_meters = fgGetDouble("/environment/visibility-m");
1502 globals->get_tile_mgr()->update( visibility_meters );
1504 SG_LOG( SG_GENERAL, SG_ALERT, "Error in Tile Manager initialization!" );
1508 globals->get_scenery()->get_scene_graph()
1509 ->addChild(simgear::Particles::getCommonRoot());
1510 simgear::GlobalParticleCallback::setSwitch(fgGetNode("/sim/rendering/particles", true));
1512 ////////////////////////////////////////////////////////////////////
1513 // Initialize the flight model subsystem.
1514 ////////////////////////////////////////////////////////////////////
1518 // allocates structures so must happen before any of the flight
1519 // model or control parameters are set
1520 fgAircraftInit(); // In the future this might not be the case.
1523 ////////////////////////////////////////////////////////////////////
1524 // Initialize the weather subsystem.
1525 ////////////////////////////////////////////////////////////////////
1527 // Initialize the weather modeling subsystem
1528 globals->add_subsystem("environment", new FGEnvironmentMgr);
1530 ////////////////////////////////////////////////////////////////////
1531 // Initialize the ridge lift simulation.
1532 ////////////////////////////////////////////////////////////////////
1534 // Initialize the ridgelift subsystem
1535 globals->add_subsystem("ridgelift", new FGRidgeLift);
1537 ////////////////////////////////////////////////////////////////////
1538 // Initialize the aircraft systems and instrumentation (before the
1540 ////////////////////////////////////////////////////////////////////
1542 globals->add_subsystem("instrumentation", new FGInstrumentMgr);
1543 globals->add_subsystem("systems", new FGSystemMgr);
1545 ////////////////////////////////////////////////////////////////////
1546 // Initialize the XML Autopilot subsystem.
1547 ////////////////////////////////////////////////////////////////////
1549 globals->add_subsystem( "xml-autopilot", new FGXMLAutopilotGroup );
1550 globals->add_subsystem( "route-manager", new FGRouteMgr );
1552 ////////////////////////////////////////////////////////////////////
1553 // Initialize the view manager subsystem.
1554 ////////////////////////////////////////////////////////////////////
1558 ////////////////////////////////////////////////////////////////////
1559 // Initialize the Input-Output subsystem
1560 ////////////////////////////////////////////////////////////////////
1561 globals->add_subsystem( "io", new FGIO );
1563 ////////////////////////////////////////////////////////////////////
1564 // Create and register the logger.
1565 ////////////////////////////////////////////////////////////////////
1567 globals->add_subsystem("logger", new FGLogger);
1569 ////////////////////////////////////////////////////////////////////
1570 // Create and register the XML GUI.
1571 ////////////////////////////////////////////////////////////////////
1573 globals->add_subsystem("gui", new NewGUI, SGSubsystemMgr::INIT);
1576 ////////////////////////////////////////////////////////////////////
1577 // Initialize the local time subsystem.
1578 ////////////////////////////////////////////////////////////////////
1580 // update the current timezone each 30 minutes
1581 globals->get_event_mgr()->addTask( "fgUpdateLocalTime()",
1582 &fgUpdateLocalTime, 30*60 );
1583 fgInitTimeOffset(); // the environment subsystem needs this
1586 ////////////////////////////////////////////////////////////////////
1587 // Initialize the lighting subsystem.
1588 ////////////////////////////////////////////////////////////////////
1590 globals->add_subsystem("lighting", new FGLight);
1592 //////////////////////////////////////////////////////////////////////
1593 // Initialize the 2D cloud subsystem.
1594 ////////////////////////////////////////////////////////////////////
1595 fgGetBool("/sim/rendering/bump-mapping", false);
1597 #ifdef ENABLE_AUDIO_SUPPORT
1598 ////////////////////////////////////////////////////////////////////
1599 // Initialize the sound-effects subsystem.
1600 ////////////////////////////////////////////////////////////////////
1601 globals->add_subsystem("voice", new FGVoiceMgr);
1604 ////////////////////////////////////////////////////////////////////
1605 // Initialise the ATC Manager
1606 ////////////////////////////////////////////////////////////////////
1609 SG_LOG(SG_GENERAL, SG_INFO, " ATC Manager");
1610 globals->set_ATC_mgr(new FGATCMgr);
1611 globals->get_ATC_mgr()->init();
1613 ////////////////////////////////////////////////////////////////////
1614 // Initialise the AI Manager
1615 ////////////////////////////////////////////////////////////////////
1617 SG_LOG(SG_GENERAL, SG_INFO, " AI Manager");
1618 globals->set_AI_mgr(new FGAIMgr);
1619 globals->get_AI_mgr()->init();
1621 ////////////////////////////////////////////////////////////////////
1622 // Initialise the AI Model Manager
1623 ////////////////////////////////////////////////////////////////////
1624 SG_LOG(SG_GENERAL, SG_INFO, " AI Model Manager");
1625 globals->add_subsystem("ai_model", new FGAIManager);
1626 globals->add_subsystem("submodel_mgr", new FGSubmodelMgr);
1629 // It's probably a good idea to initialize the top level traffic manager
1630 // After the AI and ATC systems have been initialized properly.
1631 // AI Traffic manager
1632 globals->add_subsystem("Traffic Manager", new FGTrafficManager);
1635 ////////////////////////////////////////////////////////////////////
1636 // Initialize the cockpit subsystem
1637 ////////////////////////////////////////////////////////////////////
1638 if( fgCockpitInit( ¤t_aircraft )) {
1639 // Cockpit initialized ok.
1641 SG_LOG( SG_GENERAL, SG_ALERT, "Error in Cockpit initialization!" );
1646 ////////////////////////////////////////////////////////////////////
1647 // Add a new 2D panel.
1648 ////////////////////////////////////////////////////////////////////
1650 string panel_path = fgGetString("/sim/panel/path",
1651 "Panels/Default/default.xml");
1653 globals->set_current_panel( fgReadPanel(panel_path) );
1654 if (globals->get_current_panel() == 0) {
1655 SG_LOG( SG_INPUT, SG_ALERT,
1656 "Error reading new panel from " << panel_path );
1658 SG_LOG( SG_INPUT, SG_INFO, "Loaded new panel from " << panel_path );
1659 globals->get_current_panel()->init();
1660 globals->get_current_panel()->bind();
1664 ////////////////////////////////////////////////////////////////////
1665 // Initialize the controls subsystem.
1666 ////////////////////////////////////////////////////////////////////
1668 globals->get_controls()->init();
1669 globals->get_controls()->bind();
1672 ////////////////////////////////////////////////////////////////////
1673 // Initialize the input subsystem.
1674 ////////////////////////////////////////////////////////////////////
1676 globals->add_subsystem("input", new FGInput);
1679 ////////////////////////////////////////////////////////////////////
1680 // Initialize the replay subsystem
1681 ////////////////////////////////////////////////////////////////////
1682 globals->add_subsystem("replay", new FGReplay);
1685 ////////////////////////////////////////////////////////////////////
1686 // Bind and initialize subsystems.
1687 ////////////////////////////////////////////////////////////////////
1689 globals->get_subsystem_mgr()->bind();
1690 globals->get_subsystem_mgr()->init();
1692 ////////////////////////////////////////////////////////////////////
1693 // Initialize multiplayer subsystem
1694 ////////////////////////////////////////////////////////////////////
1696 globals->set_multiplayer_mgr(new FGMultiplayMgr);
1697 globals->get_multiplayer_mgr()->init();
1699 ////////////////////////////////////////////////////////////////////////
1700 // Initialize the Nasal interpreter.
1701 // Do this last, so that the loaded scripts see initialized state
1702 ////////////////////////////////////////////////////////////////////////
1703 FGNasalSys* nasal = new FGNasalSys();
1704 globals->add_subsystem("nasal", nasal, SGSubsystemMgr::INIT);
1707 // initialize methods that depend on other subsystems.
1708 globals->get_subsystem_mgr()->postinit();
1710 ////////////////////////////////////////////////////////////////////////
1711 // End of subsystem initialization.
1712 ////////////////////////////////////////////////////////////////////
1714 SG_LOG( SG_GENERAL, SG_INFO, endl);
1716 // Save the initial state for future
1718 globals->saveInitialState();
1724 void fgReInitSubsystems()
1726 // static const SGPropertyNode *longitude
1727 // = fgGetNode("/sim/presets/longitude-deg");
1728 // static const SGPropertyNode *latitude
1729 // = fgGetNode("/sim/presets/latitude-deg");
1730 static const SGPropertyNode *altitude
1731 = fgGetNode("/sim/presets/altitude-ft");
1732 static const SGPropertyNode *master_freeze
1733 = fgGetNode("/sim/freeze/master");
1735 SG_LOG( SG_GENERAL, SG_INFO,
1736 "fgReInitSubsystems(): /position/altitude = "
1737 << altitude->getDoubleValue() );
1739 bool freeze = master_freeze->getBoolValue();
1741 fgSetBool("/sim/freeze/master", true);
1743 fgSetBool("/sim/crashed", false);
1745 // Force reupdating the positions of the ai 3d models. They are used for
1746 // initializing ground level for the FDM.
1747 globals->get_subsystem("ai_model")->reinit();
1749 // Initialize the FDM
1752 // allocates structures so must happen before any of the flight
1753 // model or control parameters are set
1754 fgAircraftInit(); // In the future this might not be the case.
1756 // reload offsets from config defaults
1757 globals->get_viewmgr()->reinit();
1761 globals->get_controls()->reset_all();
1763 fgUpdateLocalTime();
1765 // re-init to proper time of day setting
1769 fgSetBool("/sim/freeze/master", false);
1771 fgSetBool("/sim/sceneryloaded",false);
1775 void reInit(void) // from gui_local.cxx -- TODO merge with fgReInitSubsystems()
1777 static SGPropertyNode_ptr master_freeze = fgGetNode("/sim/freeze/master", true);
1779 bool freeze = master_freeze->getBoolValue();
1781 master_freeze->setBoolValue(true);
1783 fgSetBool("/sim/signals/reinit", true);
1784 cur_fdm_state->unbind();
1786 // in case user has changed window size as
1787 // restoreInitialState() overwrites these
1788 int xsize = fgGetInt("/sim/startup/xsize");
1789 int ysize = fgGetInt("/sim/startup/ysize");
1791 // viewports also needs to be saved/restored as
1792 // restoreInitialState() overwrites these
1793 SGPropertyNode *guiNode = new SGPropertyNode;
1794 SGPropertyNode *cameraNode = new SGPropertyNode;
1795 SGPropertyNode *cameraGroupNode = fgGetNode("/sim/rendering/camera-group");
1796 copyProperties(cameraGroupNode->getChild("camera"), cameraNode);
1797 copyProperties(cameraGroupNode->getChild("gui"), guiNode);
1799 globals->restoreInitialState();
1801 // update our position based on current presets
1804 // We don't know how to resize the window, so keep the last values
1805 // for xsize and ysize, and don't use the one set initially
1806 fgSetInt("/sim/startup/xsize", xsize);
1807 fgSetInt("/sim/startup/ysize", ysize);
1809 copyProperties(cameraNode, cameraGroupNode->getChild("camera"));
1810 copyProperties(guiNode, cameraGroupNode->getChild("gui"));
1815 SGTime *t = globals->get_time_params();
1818 globals->set_time_params(t);
1820 fgReInitSubsystems();
1822 globals->get_tile_mgr()->update(fgGetDouble("/environment/visibility-m"));
1823 globals->get_renderer()->resize(xsize, ysize);
1824 fgSetBool("/sim/signals/reinit", false);
1827 master_freeze->setBoolValue(false);