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()
35 #if defined( _MSC_VER) || defined(__MINGW32__)
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>
53 #include <simgear/constants.h>
54 #include <simgear/debug/logstream.hxx>
55 #include <simgear/structure/exception.hxx>
56 #include <simgear/structure/event_mgr.hxx>
57 #include <simgear/misc/sg_path.hxx>
58 #include <simgear/misc/interpolator.hxx>
59 #include <simgear/scene/material/matlib.hxx>
60 #include <simgear/scene/model/particles.hxx>
61 #include <simgear/timing/sg_time.hxx>
62 #include <simgear/timing/lowleveltime.h>
64 #include <Aircraft/aircraft.hxx>
65 #include <Aircraft/controls.hxx>
66 #include <Aircraft/replay.hxx>
67 #include <Airports/apt_loader.hxx>
68 #include <Airports/runways.hxx>
69 #include <Airports/simple.hxx>
70 #include <Airports/dynamics.hxx>
72 #include <AIModel/AIManager.hxx>
73 #include <ATCDCL/ATCmgr.hxx>
74 #include <ATCDCL/AIMgr.hxx>
75 #include <Autopilot/route_mgr.hxx>
76 #include <Autopilot/xmlauto.hxx>
77 #include <Autopilot/autobrake.hxx>
79 #include <Cockpit/cockpit.hxx>
80 #include <Cockpit/panel.hxx>
81 #include <Cockpit/panel_io.hxx>
83 #include <FDM/SP/ADA.hxx>
84 #include <FDM/SP/ACMS.hxx>
85 #include <FDM/SP/MagicCarpet.hxx>
86 #include <FDM/SP/Balloon.h>
88 #include <FDM/ExternalNet/ExternalNet.hxx>
89 #include <FDM/ExternalPipe/ExternalPipe.hxx>
90 #include <FDM/JSBSim/JSBSim.hxx>
91 #include <FDM/LaRCsim/LaRCsim.hxx>
92 #include <FDM/UFO.hxx>
93 #include <FDM/NullFDM.hxx>
94 #include <FDM/YASim/YASim.hxx>
95 #include <GUI/new_gui.hxx>
96 #include <Include/general.hxx>
97 #include <Input/input.hxx>
98 #include <Instrumentation/instrument_mgr.hxx>
99 #include <Model/acmodel.hxx>
100 #include <AIModel/submodel.hxx>
101 #include <AIModel/AIManager.hxx>
102 #include <Navaids/navdb.hxx>
103 #include <Navaids/navlist.hxx>
104 #include <Navaids/fix.hxx>
105 #include <Navaids/fixlist.hxx>
106 #include <Scenery/scenery.hxx>
107 #include <Scenery/tilemgr.hxx>
108 #include <Scripting/NasalSys.hxx>
109 #include <Sound/fg_fx.hxx>
110 #include <Sound/beacon.hxx>
111 #include <Sound/morse.hxx>
112 #include <Sound/voice.hxx>
113 #include <Systems/system_mgr.hxx>
114 #include <Time/light.hxx>
115 #include <Time/sunsolver.hxx>
116 #include <Time/tmp.hxx>
117 #include <Traffic/TrafficMgr.hxx>
118 #include <MultiPlayer/multiplaymgr.hxx>
120 #include <Environment/environment_mgr.hxx>
121 #include <Environment/ridge_lift.hxx>
123 #include "fg_init.hxx"
125 #include "fg_commands.hxx"
126 #include "fg_props.hxx"
127 #include "options.hxx"
128 #include "globals.hxx"
129 #include "logger.hxx"
130 #include "renderer.hxx"
131 #include "viewmgr.hxx"
133 #include "ATCDCL/commlist.hxx"
136 # include <CoreFoundation/CoreFoundation.h>
142 extern const char *default_root;
146 // Scan the command line options for the specified option and return
148 static string fgScanForOption( const string& option, int argc, char **argv ) {
151 if (hostname == NULL)
154 gethostname(_hostname, 256);
155 hostname = strdup(_hostname);
156 free_hostname = true;
159 SG_LOG(SG_GENERAL, SG_INFO, "Scanning command line for: " << option );
161 int len = option.length();
164 SG_LOG( SG_GENERAL, SG_DEBUG, "argv[" << i << "] = " << argv[i] );
166 string arg = argv[i];
167 if ( arg.find( option ) == 0 ) {
168 return arg.substr( len );
178 // Scan the user config files for the specified option and return
180 static string fgScanForOption( const string& option, const string& path ) {
181 sg_gzifstream in( path );
182 if ( !in.is_open() ) {
186 SG_LOG( SG_GENERAL, SG_INFO, "Scanning " << path << " for: " << option );
188 int len = option.length();
191 while ( ! in.eof() ) {
193 getline( in, line, '\n' );
195 // catch extraneous (DOS) line ending character
196 if ( line[line.length() - 1] < 32 ) {
197 line = line.substr( 0, line.length()-1 );
200 if ( line.find( option ) == 0 ) {
201 return line.substr( len );
210 // Scan the user config files for the specified option and return
212 static string fgScanForOption( const string& option ) {
215 #if defined( unix ) || defined( __CYGWIN__ )
216 // Next check home directory for .fgfsrc.hostname file
218 if ( homedir != NULL ) {
219 SGPath config( homedir );
220 config.append( ".fgfsrc" );
221 config.concat( "." );
222 config.concat( hostname );
223 arg = fgScanForOption( option, config.str() );
228 // Next check home directory for .fgfsrc file
230 if ( homedir != NULL ) {
231 SGPath config( homedir );
232 config.append( ".fgfsrc" );
233 arg = fgScanForOption( option, config.str() );
238 // Check for $fg_root/system.fgfsrc
239 SGPath config( globals->get_fg_root() );
240 config.append( "system.fgfsrc" );
241 arg = fgScanForOption( option, config.str() );
248 // Read in configuration (files and command line options) but only set
250 bool fgInitFGRoot ( int argc, char **argv ) {
253 // First parse command line options looking for --fg-root=, this
254 // will override anything specified in a config file
255 root = fgScanForOption( "--fg-root=", argc, argv);
257 // Check in one of the user configuration files.
259 root = fgScanForOption( "--fg-root=" );
261 // Next check if fg-root is set as an env variable
262 if ( root.empty() ) {
263 char *envp = ::getenv( "FG_ROOT" );
264 if ( envp != NULL ) {
269 // Otherwise, default to a random compiled-in location if we can't
270 // find fg-root any other way.
271 if ( root.empty() ) {
272 #if defined( __CYGWIN__ )
273 root = "/FlightGear";
274 #elif defined( WIN32 )
275 root = "\\FlightGear";
276 #elif defined(__APPLE__)
278 The following code looks for the base package inside the application
279 bundle, in the standard Contents/Resources location.
281 CFURLRef resourcesUrl = CFBundleCopyResourcesDirectoryURL(CFBundleGetMainBundle());
283 // look for a 'data' subdir
284 CFURLRef dataDir = CFURLCreateCopyAppendingPathComponent(NULL, resourcesUrl, CFSTR("data"), true);
286 // now convert down to a path, and the a c-string
287 CFStringRef path = CFURLCopyFileSystemPath(dataDir, kCFURLPOSIXPathStyle);
288 root = CFStringGetCStringPtr(path, CFStringGetSystemEncoding());
290 CFRelease(resourcesUrl);
298 SG_LOG(SG_INPUT, SG_INFO, "fg_root = " << root );
299 globals->set_fg_root(root);
305 // Read in configuration (files and command line options) but only set
307 bool fgInitFGAircraft ( int argc, char **argv ) {
310 // First parse command line options looking for --aircraft=, this
311 // will override anything specified in a config file
312 aircraft = fgScanForOption( "--aircraft=", argc, argv );
313 if ( aircraft.empty() ) {
314 // check synonym option
315 aircraft = fgScanForOption( "--vehicle=", argc, argv );
318 // Check in one of the user configuration files.
319 if ( aircraft.empty() ) {
320 aircraft = fgScanForOption( "--aircraft=" );
322 if ( aircraft.empty() ) {
323 aircraft = fgScanForOption( "--vehicle=" );
326 // if an aircraft was specified, set the property name
327 if ( !aircraft.empty() ) {
328 SG_LOG(SG_INPUT, SG_INFO, "aircraft = " << aircraft );
329 fgSetString("/sim/aircraft", aircraft.c_str() );
331 SG_LOG(SG_INPUT, SG_INFO, "No user specified aircraft, using default" );
338 // Return the current base package version
339 string fgBasePackageVersion() {
340 SGPath base_path( globals->get_fg_root() );
341 base_path.append("version");
343 sg_gzifstream in( base_path.str() );
344 if ( !in.is_open() ) {
345 SGPath old_path( globals->get_fg_root() );
346 old_path.append( "Thanks" );
347 sg_gzifstream old( old_path.str() );
348 if ( !old.is_open() ) {
351 return "[old version]";
362 // Initialize the localization
363 SGPropertyNode *fgInitLocale(const char *language) {
364 SGPropertyNode *c_node = NULL, *d_node = NULL;
365 SGPropertyNode *intl = fgGetNode("/sim/intl");
367 SG_LOG(SG_GENERAL, SG_INFO, "Selecting language: " << language );
369 // localization not defined
374 // Select the proper language from the list
376 vector<SGPropertyNode_ptr> locale = intl->getChildren("locale");
377 for (unsigned int i = 0; i < locale.size(); i++) {
379 vector<SGPropertyNode_ptr> lang = locale[i]->getChildren("lang");
380 for (unsigned int j = 0; j < lang.size(); j++) {
382 if (!strcmp(lang[j]->getStringValue(), language)) {
391 d_node = intl->getChild("locale");
395 // Check for localized font
396 SGPropertyNode *font_n = c_node->getNode("font", true);
397 if ( !strcmp(font_n->getStringValue(), "") )
398 font_n->setStringValue(d_node->getStringValue("font", "typewriter.txf"));
402 // Load the default strings
404 SGPath d_path( globals->get_fg_root() );
406 const char *d_path_str = d_node->getStringValue("strings");
408 SG_LOG(SG_GENERAL, SG_ALERT, "No path in " << d_node->getPath() << "/strings.");
412 d_path.append(d_path_str);
413 SG_LOG(SG_GENERAL, SG_INFO, "Reading localized strings from " << d_path.str());
415 SGPropertyNode *strings = c_node->getNode("strings");
417 readProperties(d_path.str(), strings);
418 } catch (const sg_exception &) {
419 SG_LOG(SG_GENERAL, SG_ALERT, "Unable to read the localized strings");
424 // Load the language specific strings
426 if (c_node != d_node) {
427 SGPath c_path( globals->get_fg_root() );
429 const char *c_path_str = c_node->getStringValue("strings");
431 SG_LOG(SG_GENERAL, SG_ALERT, "No path in " << c_node->getPath() << "/strings");
435 c_path.append(c_path_str);
436 SG_LOG(SG_GENERAL, SG_INFO, "Reading localized strings from " << c_path.str());
439 readProperties(c_path.str(), strings);
440 } catch (const sg_exception &) {
441 SG_LOG(SG_GENERAL, SG_ALERT,
442 "Unable to read the localized strings from " << c_path.str());
452 // Initialize the localization routines
453 bool fgDetectLanguage() {
454 const char *language = ::getenv("LANG");
456 if (language == NULL) {
457 SG_LOG(SG_GENERAL, SG_INFO, "Unable to detect the language" );
461 SGPropertyNode *locale = fgInitLocale(language);
463 SG_LOG(SG_GENERAL, SG_ALERT,
464 "No internationalization settings specified in preferences.xml" );
469 globals->set_locale( locale );
474 // Attempt to locate and parse the various non-XML config files in order
475 // from least precidence to greatest precidence
477 do_options (int argc, char ** argv)
479 // Check for $fg_root/system.fgfsrc
480 SGPath config( globals->get_fg_root() );
481 config.append( "system.fgfsrc" );
482 fgParseOptions(config.str());
484 #if defined( unix ) || defined( __CYGWIN__ )
485 config.concat( "." );
486 config.concat( hostname );
487 fgParseOptions(config.str());
490 // Check for ~/.fgfsrc
491 if ( homedir != NULL ) {
492 config.set( homedir );
493 config.append( ".fgfsrc" );
494 fgParseOptions(config.str());
497 #if defined( unix ) || defined( __CYGWIN__ )
498 // Check for ~/.fgfsrc.hostname
499 config.concat( "." );
500 config.concat( hostname );
501 fgParseOptions(config.str());
504 // Parse remaining command line options
505 // These will override anything specified in a config file
506 fgParseArgs(argc, argv);
510 static string fgFindAircraftPath( const SGPath &path, const string &aircraft,
511 SGPropertyNode *cache, int depth = 0 )
513 const int MAXDEPTH = 1;
516 ulDir *dirp = ulOpenDir(path.str().c_str());
518 cerr << "Unable to open aircraft directory '" << path.str() << '\'' << endl;
523 while ((dire = ulReadDir(dirp)) != NULL) {
525 if (depth > MAXDEPTH)
528 if (!strcmp("CVS", dire->d_name) || !strcmp(".", dire->d_name)
529 || !strcmp("..", dire->d_name) || !strcmp("AI", dire->d_name))
533 next.append(dire->d_name);
535 result = fgFindAircraftPath( next, aircraft, cache, depth + 1 );
536 if ( ! result.empty() )
540 int len = strlen(dire->d_name);
541 if (len < 9 || strcmp(dire->d_name + len - 8, "-set.xml"))
547 if (!cache->getChild("aircraft", i++, false))
550 SGPropertyNode *n, *entry = cache->getChild("aircraft", --i, true);
552 n = entry->getNode("file", true);
553 n->setStringValue(dire->d_name);
554 n->setAttribute(SGPropertyNode::USERARCHIVE, true);
556 n = entry->getNode("path", true);
557 n->setStringValue(path.str().c_str());
558 n->setAttribute(SGPropertyNode::USERARCHIVE, true);
560 if ( !strcmp(dire->d_name, aircraft.c_str()) ) {
572 // Read in configuration (file and command line)
573 bool fgInitConfig ( int argc, char **argv ) {
575 // First, set some sane default values
578 // Read global preferences from $FG_ROOT/preferences.xml
579 SG_LOG(SG_INPUT, SG_INFO, "Reading global preferences");
580 fgLoadProps("preferences.xml", globals->get_props());
581 SG_LOG(SG_INPUT, SG_INFO, "Finished Reading global preferences");
583 // Detect the required language as early as possible
584 if ( !fgDetectLanguage() ) {
588 SGPropertyNode autosave;
589 #if defined( _MSC_VER ) || defined( __MINGW32__ )
590 char *envp = ::getenv( "APPDATA" );
592 SGPath config( envp );
593 config.append( "flightgear.org" );
595 if ( homedir != NULL ) {
596 SGPath config( homedir );
597 config.append( ".fgfs" );
599 const char *fg_home = getenv("FG_HOME");
603 SGPath home_export(config.str());
604 home_export.append("Export/dummy");
605 home_export.create_dir(0777);
607 // Set /sim/fg-home and don't allow malign code to override it until
608 // Nasal security is set up. Use FG_HOME if necessary.
609 SGPropertyNode *home = fgGetNode("/sim", true);
610 home->removeChild("fg-home", 0, false);
611 home = home->getChild("fg-home", 0, true);
612 home->setStringValue(config.c_str());
613 home->setAttribute(SGPropertyNode::WRITE, false);
615 config.append( "autosave.xml" );
616 SG_LOG(SG_INPUT, SG_INFO, "Reading user settings from " << config.str());
618 readProperties(config.str(), &autosave, SGPropertyNode::USERARCHIVE);
620 SG_LOG(SG_INPUT, SG_DEBUG, "First time reading user settings");
622 SG_LOG(SG_INPUT, SG_DEBUG, "Finished Reading user settings");
624 SGPropertyNode *cache_root = autosave.getNode("sim/startup/path-cache", true);
627 // Scan user config files and command line for a specified aircraft.
628 fgInitFGAircraft(argc, argv);
630 string aircraft = fgGetString( "/sim/aircraft", "" );
631 if ( aircraft.size() > 0 ) {
632 SGPath aircraft_search( globals->get_fg_root() );
633 aircraft_search.append( "Aircraft" );
635 string aircraft_set = aircraft + "-set.xml";
638 // check if the *-set.xml file is already in the cache
639 if (globals->get_fg_root() == cache_root->getStringValue("fg-root", "")) {
640 vector<SGPropertyNode_ptr> cache = cache_root->getChildren("aircraft");
641 for (unsigned int i = 0; i < cache.size(); i++) {
642 const char *name = cache[i]->getStringValue("file", "");
643 if (aircraft_set == name) {
644 const char *path = cache[i]->getStringValue("path", "");
654 if (result.empty()) {
655 // prepare cache for rescan
656 SGPropertyNode *n = cache_root->getNode("fg-root", true);
657 n->setStringValue(globals->get_fg_root().c_str());
658 n->setAttribute(SGPropertyNode::USERARCHIVE, true);
659 cache_root->removeChildren("aircraft");
661 result = fgFindAircraftPath( aircraft_search, aircraft_set, cache_root );
664 if ( !result.empty() ) {
665 fgSetString( "/sim/aircraft-dir", result.c_str() );
666 SGPath full_name( result );
667 full_name.append( aircraft_set );
669 SG_LOG(SG_INPUT, SG_INFO, "Reading default aircraft: " << aircraft
670 << " from " << full_name.str());
672 readProperties( full_name.str(), globals->get_props() );
673 } catch ( const sg_exception &e ) {
674 string message = "Error reading default aircraft: ";
675 message += e.getFormattedMessage();
676 SG_LOG(SG_INPUT, SG_ALERT, message);
680 SG_LOG( SG_INPUT, SG_ALERT, "Cannot find specified aircraft: "
686 SG_LOG( SG_INPUT, SG_ALERT, "No default aircraft specified" );
689 copyProperties(&autosave, globals->get_props());
691 // parse options after loading aircraft to ensure any user
692 // overrides of defaults are honored.
693 do_options(argc, argv);
698 // Set current tower position lon/lat given an airport id
699 static bool fgSetTowerPosFromAirportID( const string& id) {
700 const FGAirport *a = fgFindAirportID( id);
702 SGGeod tower = a->getTowerLocation();
703 fgSetDouble("/sim/tower/longitude-deg", tower.getLongitudeDeg());
704 fgSetDouble("/sim/tower/latitude-deg", tower.getLatitudeDeg());
705 fgSetDouble("/sim/tower/altitude-ft", tower.getElevationFt());
713 struct FGTowerLocationListener : SGPropertyChangeListener {
714 void valueChanged(SGPropertyNode* node) {
715 const string id(node->getStringValue());
716 fgSetTowerPosFromAirportID(id);
720 void fgInitTowerLocationListener() {
721 fgGetNode("/sim/tower/airport-id", true)
722 ->addChangeListener( new FGTowerLocationListener(), true );
725 static void fgApplyStartOffset(const SGGeod& aStartPos, double aHeading, double aTargetHeading = HUGE_VAL)
727 SGGeod startPos(aStartPos);
728 if (aTargetHeading == HUGE_VAL) {
729 aTargetHeading = aHeading;
732 if ( fabs( fgGetDouble("/sim/presets/offset-distance-nm") ) > SG_EPSILON ) {
733 double offsetDistance = fgGetDouble("/sim/presets/offset-distance-nm");
734 offsetDistance *= SG_NM_TO_METER;
735 double offsetAzimuth = aHeading;
736 if ( fabs(fgGetDouble("/sim/presets/offset-azimuth-deg")) > SG_EPSILON ) {
737 offsetAzimuth = fgGetDouble("/sim/presets/offset-azimuth-deg");
738 aHeading = aTargetHeading;
743 SGGeodesy::direct(startPos, offsetAzimuth + 180, offsetDistance, offset, az2);
748 fgSetDouble("/sim/presets/longitude-deg", startPos.getLongitudeDeg() );
749 fgSetDouble("/sim/presets/latitude-deg", startPos.getLatitudeDeg() );
750 fgSetDouble("/sim/presets/heading-deg", aHeading );
752 // other code depends on the actual values being set ...
753 fgSetDouble("/position/longitude-deg", startPos.getLongitudeDeg() );
754 fgSetDouble("/position/latitude-deg", startPos.getLatitudeDeg() );
755 fgSetDouble("/orientation/heading-deg", aHeading );
758 // Set current_options lon/lat given an airport id and heading (degrees)
759 static bool fgSetPosFromAirportIDandHdg( const string& id, double tgt_hdg ) {
763 // set initial position from runway and heading
764 SG_LOG( SG_GENERAL, SG_INFO,
765 "Attempting to set starting position from airport code "
766 << id << " heading " << tgt_hdg );
768 const FGAirport* apt = fgFindAirportID(id);
769 if (!apt) return false;
770 FGRunway* r = apt->findBestRunwayForHeading(tgt_hdg);
771 fgSetString("/sim/atc/runway", r->ident().c_str());
773 SGGeod startPos = r->pointOnCenterline(fgGetDouble("/sim/airport/runways/start-offset-m", 5.0));
774 fgApplyStartOffset(startPos, r->headingDeg(), tgt_hdg);
778 // Set current_options lon/lat given an airport id and parkig position name
779 static bool fgSetPosFromAirportIDandParkpos( const string& id, const string& parkpos ) {
783 // can't see an easy way around this const_cast at the moment
784 FGAirport* apt = const_cast<FGAirport*>(fgFindAirportID(id));
786 SG_LOG( SG_GENERAL, SG_ALERT, "Failed to find airport " << id );
789 FGAirportDynamics* dcs = apt->getDynamics();
791 SG_LOG( SG_GENERAL, SG_ALERT,
792 "Failed to find parking position " << parkpos <<
793 " at airport " << id );
797 int park_index = dcs->getNrOfParkings() - 1;
798 while (park_index >= 0 && dcs->getParkingName(park_index) != parkpos) park_index--;
799 if (park_index < 0) {
800 SG_LOG( SG_GENERAL, SG_ALERT,
801 "Failed to find parking position " << parkpos <<
802 " at airport " << id );
805 FGParking* parking = dcs->getParking(park_index);
807 SGGeod::fromDeg(parking->getLongitude(), parking->getLatitude()),
808 parking->getHeading());
813 // Set current_options lon/lat given an airport id and runway number
814 static bool fgSetPosFromAirportIDandRwy( const string& id, const string& rwy, bool rwy_req ) {
818 // set initial position from airport and runway number
819 SG_LOG( SG_GENERAL, SG_INFO,
820 "Attempting to set starting position for "
821 << id << ":" << rwy );
823 const FGAirport* apt = fgFindAirportID(id);
825 SG_LOG( SG_GENERAL, SG_ALERT, "Failed to find airport:" << id);
829 if (!apt->hasRunwayWithIdent(rwy)) {
830 SG_LOG( SG_GENERAL, rwy_req ? SG_ALERT : SG_INFO,
831 "Failed to find runway " << rwy <<
832 " at airport " << id << ". Using default runway." );
836 FGRunway* r(apt->getRunwayByIdent(rwy));
837 fgSetString("/sim/atc/runway", r->ident().c_str());
838 SGGeod startPos = r->pointOnCenterline( fgGetDouble("/sim/airport/runways/start-offset-m", 5.0));
839 fgApplyStartOffset(startPos, r->headingDeg());
844 static void fgSetDistOrAltFromGlideSlope() {
845 // cout << "fgSetDistOrAltFromGlideSlope()" << endl;
846 string apt_id = fgGetString("/sim/presets/airport-id");
847 double gs = fgGetDouble("/sim/presets/glideslope-deg")
848 * SG_DEGREES_TO_RADIANS ;
849 double od = fgGetDouble("/sim/presets/offset-distance-nm");
850 double alt = fgGetDouble("/sim/presets/altitude-ft");
852 double apt_elev = 0.0;
853 if ( ! apt_id.empty() ) {
854 apt_elev = fgGetAirportElev( apt_id );
855 if ( apt_elev < -9990.0 ) {
862 if( fabs(gs) > 0.01 && fabs(od) > 0.1 && alt < -9990 ) {
863 // set altitude from glideslope and offset-distance
864 od *= SG_NM_TO_METER * SG_METER_TO_FEET;
865 alt = fabs(od*tan(gs)) + apt_elev;
866 fgSetDouble("/sim/presets/altitude-ft", alt);
867 fgSetBool("/sim/presets/onground", false);
868 SG_LOG( SG_GENERAL, SG_INFO, "Calculated altitude as: "
870 } else if( fabs(gs) > 0.01 && alt > 0 && fabs(od) < 0.1) {
871 // set offset-distance from glideslope and altitude
872 od = (alt - apt_elev) / tan(gs);
873 od *= -1*SG_FEET_TO_METER * SG_METER_TO_NM;
874 fgSetDouble("/sim/presets/offset-distance-nm", od);
875 fgSetBool("/sim/presets/onground", false);
876 SG_LOG( SG_GENERAL, SG_INFO, "Calculated offset distance as: "
878 } else if( fabs(gs) > 0.01 ) {
879 SG_LOG( SG_GENERAL, SG_ALERT,
880 "Glideslope given but not altitude or offset-distance." );
881 SG_LOG( SG_GENERAL, SG_ALERT, "Resetting glideslope to zero" );
882 fgSetDouble("/sim/presets/glideslope-deg", 0);
883 fgSetBool("/sim/presets/onground", true);
888 // Set current_options lon/lat given an airport id and heading (degrees)
889 static bool fgSetPosFromNAV( const string& id, const double& freq ) {
891 = globals->get_navlist()->findByIdentAndFreq( id.c_str(), freq );
894 SG_LOG( SG_GENERAL, SG_ALERT, "Failed to locate NAV = "
895 << id << ":" << freq );
899 fgApplyStartOffset(nav->geod(), fgGetDouble("/sim/presets/heading-deg"));
903 // Set current_options lon/lat given an aircraft carrier id
904 static bool fgSetPosFromCarrier( const string& carrier, const string& posid ) {
906 // set initial position from runway and heading
910 if (FGAIManager::getStartPosition(carrier, posid, geodPos, heading, uvw)) {
911 double lon = geodPos.getLongitudeDeg();
912 double lat = geodPos.getLatitudeDeg();
913 double alt = geodPos.getElevationFt();
915 SG_LOG( SG_GENERAL, SG_INFO, "Attempting to set starting position for "
916 << carrier << " at lat = " << lat << ", lon = " << lon
917 << ", alt = " << alt << ", heading = " << heading);
919 fgSetDouble("/sim/presets/longitude-deg", lon);
920 fgSetDouble("/sim/presets/latitude-deg", lat);
921 fgSetDouble("/sim/presets/altitude-ft", alt);
922 fgSetDouble("/sim/presets/heading-deg", heading);
923 fgSetDouble("/position/longitude-deg", lon);
924 fgSetDouble("/position/latitude-deg", lat);
925 fgSetDouble("/position/altitude-ft", alt);
926 fgSetDouble("/orientation/heading-deg", heading);
928 fgSetString("/sim/presets/speed-set", "UVW");
929 fgSetDouble("/velocities/uBody-fps", uvw(0));
930 fgSetDouble("/velocities/vBody-fps", uvw(1));
931 fgSetDouble("/velocities/wBody-fps", uvw(2));
932 fgSetDouble("/sim/presets/uBody-fps", uvw(0));
933 fgSetDouble("/sim/presets/vBody-fps", uvw(1));
934 fgSetDouble("/sim/presets/wBody-fps", uvw(2));
936 fgSetBool("/sim/presets/onground", true);
940 SG_LOG( SG_GENERAL, SG_ALERT, "Failed to locate aircraft carrier = "
946 // Set current_options lon/lat given an airport id and heading (degrees)
947 static bool fgSetPosFromFix( const string& id )
949 FGPositioned::TypeFilter fixFilter(FGPositioned::FIX);
950 FGPositioned* fix = FGPositioned::findNextWithPartialId(NULL, id, &fixFilter);
952 SG_LOG( SG_GENERAL, SG_ALERT, "Failed to locate fix = " << id );
956 fgApplyStartOffset(fix->geod(), fgGetDouble("/sim/presets/heading-deg"));
961 * Initialize vor/ndb/ils/fix list management and query systems (as
962 * well as simple airport db list)
967 SG_LOG(SG_GENERAL, SG_INFO, "Loading Airport Database ...");
969 SGPath aptdb( globals->get_fg_root() );
970 aptdb.append( "Airports/apt.dat" );
972 SGPath p_metar( globals->get_fg_root() );
973 p_metar.append( "Airports/metar.dat" );
975 // Initialise the frequency search map BEFORE reading
976 // the airport database:
977 current_commlist = new FGCommList;
978 current_commlist->init( globals->get_fg_root() );
979 fgAirportDBLoad( aptdb.str(), current_commlist, p_metar.str() );
981 FGNavList *navlist = new FGNavList;
982 FGNavList *loclist = new FGNavList;
983 FGNavList *gslist = new FGNavList;
984 FGNavList *dmelist = new FGNavList;
985 FGNavList *tacanlist = new FGNavList;
986 FGNavList *carrierlist = new FGNavList;
987 FGTACANList *channellist = new FGTACANList;
989 globals->set_navlist( navlist );
990 globals->set_loclist( loclist );
991 globals->set_gslist( gslist );
992 globals->set_dmelist( dmelist );
993 globals->set_tacanlist( tacanlist );
994 globals->set_carrierlist( carrierlist );
995 globals->set_channellist( channellist );
997 if ( !fgNavDBInit(navlist, loclist, gslist, dmelist, tacanlist, carrierlist, channellist) ) {
998 SG_LOG( SG_GENERAL, SG_ALERT,
999 "Problems loading one or more navigational database" );
1002 SG_LOG(SG_GENERAL, SG_INFO, " Fixes");
1003 SGPath p_fix( globals->get_fg_root() );
1004 p_fix.append( "Navaids/fix.dat" );
1006 fixlist.init( p_fix ); // adds fixes to the DB in positioned.cxx
1008 SG_LOG(SG_GENERAL, SG_INFO, " Airways");
1009 SGPath p_awy( globals->get_fg_root() );
1010 p_awy.append( "Navaids/awy.dat" );
1011 FGAirwayNetwork *awyNet = new FGAirwayNetwork;
1012 //cerr << "Loading Airways" << endl;
1013 awyNet->load (p_awy );
1015 //cerr << "initializing airways" << endl;
1016 globals->set_airwaynet( awyNet );
1022 // Set the initial position based on presets (or defaults)
1023 bool fgInitPosition() {
1024 // cout << "fgInitPosition()" << endl;
1025 double gs = fgGetDouble("/sim/presets/glideslope-deg")
1026 * SG_DEGREES_TO_RADIANS ;
1027 double od = fgGetDouble("/sim/presets/offset-distance-nm");
1028 double alt = fgGetDouble("/sim/presets/altitude-ft");
1030 bool set_pos = false;
1032 // If glideslope is specified, then calculate offset-distance or
1033 // altitude relative to glide slope if either of those was not
1035 if ( fabs( gs ) > 0.01 ) {
1036 fgSetDistOrAltFromGlideSlope();
1040 // If we have an explicit, in-range lon/lat, don't change it, just use it.
1041 // If not, check for an airport-id and use that.
1042 // If not, default to the middle of the KSFO field.
1043 // The default values for lon/lat are deliberately out of range
1044 // so that the airport-id can take effect; valid lon/lat will
1045 // override airport-id, however.
1046 double lon_deg = fgGetDouble("/sim/presets/longitude-deg");
1047 double lat_deg = fgGetDouble("/sim/presets/latitude-deg");
1048 if ( lon_deg >= -180.0 && lon_deg <= 180.0
1049 && lat_deg >= -90.0 && lat_deg <= 90.0 )
1054 string apt = fgGetString("/sim/presets/airport-id");
1055 string rwy_no = fgGetString("/sim/presets/runway");
1056 bool rwy_req = fgGetBool("/sim/presets/runway-requested");
1057 string vor = fgGetString("/sim/presets/vor-id");
1058 double vor_freq = fgGetDouble("/sim/presets/vor-freq");
1059 string ndb = fgGetString("/sim/presets/ndb-id");
1060 double ndb_freq = fgGetDouble("/sim/presets/ndb-freq");
1061 string carrier = fgGetString("/sim/presets/carrier");
1062 string parkpos = fgGetString("/sim/presets/parkpos");
1063 string fix = fgGetString("/sim/presets/fix");
1064 SGPropertyNode *hdg_preset = fgGetNode("/sim/presets/heading-deg", true);
1065 double hdg = hdg_preset->getDoubleValue();
1067 // save some start parameters, so that we can later say what the
1068 // user really requested. TODO generalize that and move it to options.cxx
1069 static bool start_options_saved = false;
1070 if (!start_options_saved) {
1071 start_options_saved = true;
1072 SGPropertyNode *opt = fgGetNode("/sim/startup/options", true);
1074 opt->setDoubleValue("latitude-deg", lat_deg);
1075 opt->setDoubleValue("longitude-deg", lon_deg);
1076 opt->setDoubleValue("heading-deg", hdg);
1077 opt->setStringValue("airport", apt.c_str());
1078 opt->setStringValue("runway", rwy_no.c_str());
1082 hdg = fgGetDouble("/environment/config/boundary/entry/wind-from-heading-deg", 270);
1084 if ( !set_pos && !apt.empty() && !parkpos.empty() ) {
1085 // An airport + parking position is requested
1086 if ( fgSetPosFromAirportIDandParkpos( apt, parkpos ) ) {
1087 // set tower position
1088 fgSetString("/sim/tower/airport-id", apt.c_str());
1093 if ( !set_pos && !apt.empty() && !rwy_no.empty() ) {
1094 // An airport + runway is requested
1095 if ( fgSetPosFromAirportIDandRwy( apt, rwy_no, rwy_req ) ) {
1096 // set tower position (a little off the heading for single
1098 fgSetString("/sim/tower/airport-id", apt.c_str());
1103 if ( !set_pos && !apt.empty() ) {
1104 // An airport is requested (find runway closest to hdg)
1105 if ( fgSetPosFromAirportIDandHdg( apt, hdg ) ) {
1106 // set tower position (a little off the heading for single
1108 fgSetString("/sim/tower/airport-id", apt.c_str());
1113 if (hdg_preset->getDoubleValue() > 9990.0)
1114 hdg_preset->setDoubleValue(hdg);
1116 if ( !set_pos && !vor.empty() ) {
1117 // a VOR is requested
1118 if ( fgSetPosFromNAV( vor, vor_freq ) ) {
1123 if ( !set_pos && !ndb.empty() ) {
1124 // an NDB is requested
1125 if ( fgSetPosFromNAV( ndb, ndb_freq ) ) {
1130 if ( !set_pos && !carrier.empty() ) {
1131 // an aircraft carrier is requested
1132 if ( fgSetPosFromCarrier( carrier, parkpos ) ) {
1137 if ( !set_pos && !fix.empty() ) {
1138 // a Fix is requested
1139 if ( fgSetPosFromFix( fix ) ) {
1145 // No lon/lat specified, no airport specified, default to
1146 // middle of KSFO field.
1147 fgSetDouble("/sim/presets/longitude-deg", -122.374843);
1148 fgSetDouble("/sim/presets/latitude-deg", 37.619002);
1151 fgSetDouble( "/position/longitude-deg",
1152 fgGetDouble("/sim/presets/longitude-deg") );
1153 fgSetDouble( "/position/latitude-deg",
1154 fgGetDouble("/sim/presets/latitude-deg") );
1155 fgSetDouble( "/orientation/heading-deg", hdg_preset->getDoubleValue());
1157 // determine if this should be an on-ground or in-air start
1158 if ((fabs(gs) > 0.01 || fabs(od) > 0.1 || alt > 0.1) && carrier.empty()) {
1159 fgSetBool("/sim/presets/onground", false);
1161 fgSetBool("/sim/presets/onground", true);
1168 // General house keeping initializations
1169 bool fgInitGeneral() {
1172 SG_LOG( SG_GENERAL, SG_INFO, "General Initialization" );
1173 SG_LOG( SG_GENERAL, SG_INFO, "======= ==============" );
1175 root = globals->get_fg_root();
1176 if ( ! root.length() ) {
1177 // No root path set? Then bail ...
1178 SG_LOG( SG_GENERAL, SG_ALERT,
1179 "Cannot continue without a path to the base package "
1180 << "being defined." );
1183 SG_LOG( SG_GENERAL, SG_INFO, "FG_ROOT = " << '"' << root << '"' << endl );
1185 globals->set_browser(fgGetString("/sim/startup/browser-app", "firefox %u"));
1187 char buf[512], *cwd = getcwd(buf, 511);
1189 SGPropertyNode *curr = fgGetNode("/sim", true);
1190 curr->removeChild("fg-current", 0, false);
1191 curr = curr->getChild("fg-current", 0, true);
1192 curr->setStringValue(cwd ? cwd : "");
1193 curr->setAttribute(SGPropertyNode::WRITE, false);
1195 fgSetBool("/sim/startup/stdout-to-terminal", isatty(1));
1196 fgSetBool("/sim/startup/stderr-to-terminal", isatty(2));
1201 // Initialize the flight model subsystem. This just creates the
1202 // object. The actual fdm initialization is delayed until we get a
1203 // proper scenery elevation hit. This is checked for in main.cxx
1207 if ( cur_fdm_state ) {
1208 delete cur_fdm_state;
1212 double dt = 1.0 / fgGetInt("/sim/model-hz");
1213 string model = fgGetString("/sim/flight-model");
1215 if ( model == "larcsim" ) {
1216 cur_fdm_state = new FGLaRCsim( dt );
1217 } else if ( model == "jsb" ) {
1218 cur_fdm_state = new FGJSBsim( dt );
1220 } else if ( model == "ada" ) {
1221 cur_fdm_state = new FGADA( dt );
1222 } else if ( model == "acms" ) {
1223 cur_fdm_state = new FGACMS( dt );
1224 } else if ( model == "balloon" ) {
1225 cur_fdm_state = new FGBalloonSim( dt );
1226 } else if ( model == "magic" ) {
1227 cur_fdm_state = new FGMagicCarpet( dt );
1229 } else if ( model == "ufo" ) {
1230 cur_fdm_state = new FGUFO( dt );
1231 } else if ( model == "external" ) {
1232 // external is a synonym for "--fdm=null" and is
1233 // maintained here for backwards compatibility
1234 cur_fdm_state = new FGNullFDM( dt );
1235 } else if ( model.find("network") == 0 ) {
1236 string host = "localhost";
1240 string net_options = model.substr(8);
1241 string::size_type begin, end;
1244 end = net_options.find( ",", begin );
1245 if ( end != string::npos ) {
1246 host = net_options.substr(begin, end - begin);
1250 end = net_options.find( ",", begin );
1251 if ( end != string::npos ) {
1252 port1 = atoi( net_options.substr(begin, end - begin).c_str() );
1256 end = net_options.find( ",", begin );
1257 if ( end != string::npos ) {
1258 port2 = atoi( net_options.substr(begin, end - begin).c_str() );
1262 end = net_options.find( ",", begin );
1263 if ( end != string::npos ) {
1264 port3 = atoi( net_options.substr(begin, end - begin).c_str() );
1267 cur_fdm_state = new FGExternalNet( dt, host, port1, port2, port3 );
1268 } else if ( model.find("pipe") == 0 ) {
1269 // /* old */ string pipe_path = model.substr(5);
1270 // /* old */ cur_fdm_state = new FGExternalPipe( dt, pipe_path );
1271 string pipe_path = "";
1272 string pipe_protocol = "";
1273 string pipe_options = model.substr(5);
1274 string::size_type begin, end;
1277 end = pipe_options.find( ",", begin );
1278 if ( end != string::npos ) {
1279 pipe_path = pipe_options.substr(begin, end - begin);
1282 // protocol (last option)
1283 pipe_protocol = pipe_options.substr(begin);
1284 cur_fdm_state = new FGExternalPipe( dt, pipe_path, pipe_protocol );
1285 } else if ( model == "null" ) {
1286 cur_fdm_state = new FGNullFDM( dt );
1287 } else if ( model == "yasim" ) {
1288 cur_fdm_state = new YASim( dt );
1290 throw sg_exception(string("Unrecognized flight model '") + model
1291 + "', cannot init flight dynamics model.");
1295 // Initialize view parameters
1297 // force update of model so that viewer can get some data...
1298 globals->get_aircraft_model()->update(0);
1299 // run update for current view so that data is current...
1300 globals->get_viewmgr()->update(0);
1304 SGTime *fgInitTime() {
1306 static const SGPropertyNode *longitude
1307 = fgGetNode("/position/longitude-deg");
1308 static const SGPropertyNode *latitude
1309 = fgGetNode("/position/latitude-deg");
1310 static const SGPropertyNode *cur_time_override
1311 = fgGetNode("/sim/time/cur-time-override", true);
1313 SGPath zone( globals->get_fg_root() );
1314 zone.append( "Timezone" );
1315 SGTime *t = new SGTime( longitude->getDoubleValue()
1316 * SGD_DEGREES_TO_RADIANS,
1317 latitude->getDoubleValue()
1318 * SGD_DEGREES_TO_RADIANS,
1320 cur_time_override->getLongValue() );
1322 globals->set_warp_delta( 0 );
1324 t->update( 0.0, 0.0,
1325 cur_time_override->getLongValue(),
1326 globals->get_warp() );
1332 // set up a time offset (aka warp) if one is specified
1333 void fgInitTimeOffset() {
1334 static const SGPropertyNode *longitude
1335 = fgGetNode("/position/longitude-deg");
1336 static const SGPropertyNode *latitude
1337 = fgGetNode("/position/latitude-deg");
1338 static const SGPropertyNode *cur_time_override
1339 = fgGetNode("/sim/time/cur-time-override", true);
1341 // Handle potential user specified time offsets
1342 int orig_warp = globals->get_warp();
1343 SGTime *t = globals->get_time_params();
1344 time_t cur_time = t->get_cur_time();
1345 time_t currGMT = sgTimeGetGMT( gmtime(&cur_time) );
1346 time_t systemLocalTime = sgTimeGetGMT( localtime(&cur_time) );
1347 time_t aircraftLocalTime =
1348 sgTimeGetGMT( fgLocaltime(&cur_time, t->get_zonename() ) );
1350 // Okay, we now have several possible scenarios
1351 int offset = fgGetInt("/sim/startup/time-offset");
1352 string offset_type = fgGetString("/sim/startup/time-offset-type");
1355 if ( offset_type == "real" ) {
1357 } else if ( offset_type == "dawn" ) {
1358 warp = fgTimeSecondsUntilSunAngle( cur_time,
1359 longitude->getDoubleValue()
1360 * SGD_DEGREES_TO_RADIANS,
1361 latitude->getDoubleValue()
1362 * SGD_DEGREES_TO_RADIANS,
1364 } else if ( offset_type == "morning" ) {
1365 warp = fgTimeSecondsUntilSunAngle( cur_time,
1366 longitude->getDoubleValue()
1367 * SGD_DEGREES_TO_RADIANS,
1368 latitude->getDoubleValue()
1369 * SGD_DEGREES_TO_RADIANS,
1371 } else if ( offset_type == "noon" ) {
1372 warp = fgTimeSecondsUntilSunAngle( cur_time,
1373 longitude->getDoubleValue()
1374 * SGD_DEGREES_TO_RADIANS,
1375 latitude->getDoubleValue()
1376 * SGD_DEGREES_TO_RADIANS,
1378 } else if ( offset_type == "afternoon" ) {
1379 warp = fgTimeSecondsUntilSunAngle( cur_time,
1380 longitude->getDoubleValue()
1381 * SGD_DEGREES_TO_RADIANS,
1382 latitude->getDoubleValue()
1383 * SGD_DEGREES_TO_RADIANS,
1385 } else if ( offset_type == "dusk" ) {
1386 warp = fgTimeSecondsUntilSunAngle( cur_time,
1387 longitude->getDoubleValue()
1388 * SGD_DEGREES_TO_RADIANS,
1389 latitude->getDoubleValue()
1390 * SGD_DEGREES_TO_RADIANS,
1392 } else if ( offset_type == "evening" ) {
1393 warp = fgTimeSecondsUntilSunAngle( cur_time,
1394 longitude->getDoubleValue()
1395 * SGD_DEGREES_TO_RADIANS,
1396 latitude->getDoubleValue()
1397 * SGD_DEGREES_TO_RADIANS,
1399 } else if ( offset_type == "midnight" ) {
1400 warp = fgTimeSecondsUntilSunAngle( cur_time,
1401 longitude->getDoubleValue()
1402 * SGD_DEGREES_TO_RADIANS,
1403 latitude->getDoubleValue()
1404 * SGD_DEGREES_TO_RADIANS,
1406 } else if ( offset_type == "system-offset" ) {
1409 } else if ( offset_type == "gmt-offset" ) {
1410 warp = offset - (currGMT - systemLocalTime);
1412 } else if ( offset_type == "latitude-offset" ) {
1413 warp = offset - (aircraftLocalTime - systemLocalTime);
1415 } else if ( offset_type == "system" ) {
1416 warp = offset - (systemLocalTime - currGMT) - cur_time;
1417 } else if ( offset_type == "gmt" ) {
1418 warp = offset - cur_time;
1419 } else if ( offset_type == "latitude" ) {
1420 warp = offset - (aircraftLocalTime - currGMT)- cur_time;
1422 SG_LOG( SG_GENERAL, SG_ALERT,
1423 "FG_TIME::Unsupported offset type " << offset_type );
1426 globals->set_warp( orig_warp + warp );
1427 t->update( longitude->getDoubleValue() * SGD_DEGREES_TO_RADIANS,
1428 latitude->getDoubleValue() * SGD_DEGREES_TO_RADIANS,
1429 cur_time_override->getLongValue(),
1430 globals->get_warp() );
1432 SG_LOG( SG_GENERAL, SG_INFO, "After fgInitTimeOffset(): warp = "
1433 << globals->get_warp() );
1437 // This is the top level init routine which calls all the other
1438 // initialization routines. If you are adding a subsystem to flight
1439 // gear, its initialization call should located in this routine.
1440 // Returns non-zero if a problem encountered.
1441 bool fgInitSubsystems() {
1442 // static const SGPropertyNode *longitude
1443 // = fgGetNode("/sim/presets/longitude-deg");
1444 // static const SGPropertyNode *latitude
1445 // = fgGetNode("/sim/presets/latitude-deg");
1446 // static const SGPropertyNode *altitude
1447 // = fgGetNode("/sim/presets/altitude-ft");
1449 SG_LOG( SG_GENERAL, SG_INFO, "Initialize Subsystems");
1450 SG_LOG( SG_GENERAL, SG_INFO, "========== ==========");
1452 ////////////////////////////////////////////////////////////////////
1453 // Initialize the event manager subsystem.
1454 ////////////////////////////////////////////////////////////////////
1456 globals->get_event_mgr()->init();
1457 globals->get_event_mgr()->setRealtimeProperty(fgGetNode("/sim/time/delta-realtime-sec", true));
1459 ////////////////////////////////////////////////////////////////////
1460 // Initialize the property interpolator subsystem. Put into the INIT
1461 // group because the "nasal" subsystem may need it at GENERAL take-down.
1462 ////////////////////////////////////////////////////////////////////
1463 globals->add_subsystem("interpolator", new SGInterpolator, SGSubsystemMgr::INIT);
1466 ////////////////////////////////////////////////////////////////////
1467 // Add the FlightGear property utilities.
1468 ////////////////////////////////////////////////////////////////////
1469 globals->add_subsystem("properties", new FGProperties);
1471 ////////////////////////////////////////////////////////////////////
1472 // Initialize the material property subsystem.
1473 ////////////////////////////////////////////////////////////////////
1475 SGPath mpath( globals->get_fg_root() );
1476 mpath.append( "materials.xml" );
1477 if ( ! globals->get_matlib()->load(globals->get_fg_root(), mpath.str(),
1478 globals->get_props()) ) {
1479 SG_LOG( SG_GENERAL, SG_ALERT, "Error loading material lib!" );
1484 ////////////////////////////////////////////////////////////////////
1485 // Initialize the scenery management subsystem.
1486 ////////////////////////////////////////////////////////////////////
1488 if ( globals->get_tile_mgr()->init() ) {
1489 // Load the local scenery data
1490 double visibility_meters = fgGetDouble("/environment/visibility-m");
1492 globals->get_tile_mgr()->update( visibility_meters );
1494 SG_LOG( SG_GENERAL, SG_ALERT, "Error in Tile Manager initialization!" );
1498 globals->get_scenery()->get_scene_graph()
1499 ->addChild(simgear::Particles::getCommonRoot());
1500 simgear::GlobalParticleCallback::setSwitch(fgGetNode("/sim/rendering/particles", true));
1502 ////////////////////////////////////////////////////////////////////
1503 // Initialize the flight model subsystem.
1504 ////////////////////////////////////////////////////////////////////
1508 // allocates structures so must happen before any of the flight
1509 // model or control parameters are set
1510 fgAircraftInit(); // In the future this might not be the case.
1513 ////////////////////////////////////////////////////////////////////
1514 // Initialize the weather subsystem.
1515 ////////////////////////////////////////////////////////////////////
1517 // Initialize the weather modeling subsystem
1518 globals->add_subsystem("environment", new FGEnvironmentMgr);
1520 ////////////////////////////////////////////////////////////////////
1521 // Initialize the ridge lift simulation.
1522 ////////////////////////////////////////////////////////////////////
1524 // Initialize the ridgelift subsystem
1525 globals->add_subsystem("ridgelift", new FGRidgeLift);
1528 ////////////////////////////////////////////////////////////////////
1529 // Initialize the aircraft systems and instrumentation (before the
1531 ////////////////////////////////////////////////////////////////////
1533 globals->add_subsystem("instrumentation", new FGInstrumentMgr);
1534 globals->add_subsystem("systems", new FGSystemMgr);
1536 ////////////////////////////////////////////////////////////////////
1537 // Initialize the XML Autopilot subsystem.
1538 ////////////////////////////////////////////////////////////////////
1540 globals->add_subsystem( "xml-autopilot", new FGXMLAutopilot );
1541 globals->add_subsystem( "route-manager", new FGRouteMgr );
1542 globals->add_subsystem( "autobrake", new FGAutoBrake );
1544 ////////////////////////////////////////////////////////////////////
1545 // Initialize the view manager subsystem.
1546 ////////////////////////////////////////////////////////////////////
1550 ////////////////////////////////////////////////////////////////////
1551 // Initialize the Input-Output subsystem
1552 ////////////////////////////////////////////////////////////////////
1553 globals->add_subsystem( "io", new FGIO );
1555 ////////////////////////////////////////////////////////////////////
1556 // Create and register the logger.
1557 ////////////////////////////////////////////////////////////////////
1559 globals->add_subsystem("logger", new FGLogger);
1561 ////////////////////////////////////////////////////////////////////
1562 // Create and register the XML GUI.
1563 ////////////////////////////////////////////////////////////////////
1565 globals->add_subsystem("gui", new NewGUI, SGSubsystemMgr::INIT);
1568 ////////////////////////////////////////////////////////////////////
1569 // Initialize the local time subsystem.
1570 ////////////////////////////////////////////////////////////////////
1572 // update the current timezone each 30 minutes
1573 globals->get_event_mgr()->addTask( "fgUpdateLocalTime()",
1574 &fgUpdateLocalTime, 30*60 );
1575 fgInitTimeOffset(); // the environment subsystem needs this
1578 ////////////////////////////////////////////////////////////////////
1579 // Initialize the lighting subsystem.
1580 ////////////////////////////////////////////////////////////////////
1582 globals->add_subsystem("lighting", new FGLight);
1584 //////////////////////////////////////////////////////////////////////
1585 // Initialize the 2D cloud subsystem.
1586 ////////////////////////////////////////////////////////////////////
1587 fgGetBool("/sim/rendering/bump-mapping", false);
1589 #ifdef ENABLE_AUDIO_SUPPORT
1590 ////////////////////////////////////////////////////////////////////
1591 // Initialize the sound subsystem.
1592 ////////////////////////////////////////////////////////////////////
1594 init_volume = fgGetFloat("/sim/sound/volume");
1595 fgSetFloat("/sim/sound/volume", 0.0f);
1596 globals->set_soundmgr(new SGSoundMgr);
1597 globals->get_soundmgr()->init();
1598 globals->get_soundmgr()->bind();
1601 ////////////////////////////////////////////////////////////////////
1602 // Initialize the sound-effects subsystem.
1603 ////////////////////////////////////////////////////////////////////
1605 globals->add_subsystem("fx", new FGFX);
1606 globals->add_subsystem("voice", new FGVoiceMgr);
1609 ////////////////////////////////////////////////////////////////////
1610 // Initialise the ATC Manager
1611 ////////////////////////////////////////////////////////////////////
1613 SG_LOG(SG_GENERAL, SG_INFO, " ATC Manager");
1614 globals->set_ATC_mgr(new FGATCMgr);
1615 globals->get_ATC_mgr()->init();
1617 ////////////////////////////////////////////////////////////////////
1618 // Initialise the AI Manager
1619 ////////////////////////////////////////////////////////////////////
1621 SG_LOG(SG_GENERAL, SG_INFO, " AI Manager");
1622 globals->set_AI_mgr(new FGAIMgr);
1623 globals->get_AI_mgr()->init();
1625 ////////////////////////////////////////////////////////////////////
1626 // Initialise the AI Model Manager
1627 ////////////////////////////////////////////////////////////////////
1628 SG_LOG(SG_GENERAL, SG_INFO, " AI Model Manager");
1629 globals->add_subsystem("ai_model", new FGAIManager);
1630 globals->add_subsystem("submodel_mgr", new FGSubmodelMgr);
1633 // It's probably a good idea to initialize the top level traffic manager
1634 // After the AI and ATC systems have been initialized properly.
1635 // AI Traffic manager
1636 globals->add_subsystem("Traffic Manager", new FGTrafficManager);
1639 ////////////////////////////////////////////////////////////////////
1640 // Initialize the cockpit subsystem
1641 ////////////////////////////////////////////////////////////////////
1642 if( fgCockpitInit( ¤t_aircraft )) {
1643 // Cockpit initialized ok.
1645 SG_LOG( SG_GENERAL, SG_ALERT, "Error in Cockpit initialization!" );
1650 ////////////////////////////////////////////////////////////////////
1651 // Add a new 2D panel.
1652 ////////////////////////////////////////////////////////////////////
1654 string panel_path = fgGetString("/sim/panel/path",
1655 "Panels/Default/default.xml");
1657 globals->set_current_panel( fgReadPanel(panel_path) );
1658 if (globals->get_current_panel() == 0) {
1659 SG_LOG( SG_INPUT, SG_ALERT,
1660 "Error reading new panel from " << panel_path );
1662 SG_LOG( SG_INPUT, SG_INFO, "Loaded new panel from " << panel_path );
1663 globals->get_current_panel()->init();
1664 globals->get_current_panel()->bind();
1668 ////////////////////////////////////////////////////////////////////
1669 // Initialize the controls subsystem.
1670 ////////////////////////////////////////////////////////////////////
1672 globals->get_controls()->init();
1673 globals->get_controls()->bind();
1676 ////////////////////////////////////////////////////////////////////
1677 // Initialize the input subsystem.
1678 ////////////////////////////////////////////////////////////////////
1680 globals->add_subsystem("input", new FGInput);
1683 ////////////////////////////////////////////////////////////////////
1684 // Initialize the replay subsystem
1685 ////////////////////////////////////////////////////////////////////
1686 globals->add_subsystem("replay", new FGReplay);
1688 ////////////////////////////////////////////////////////////////////
1689 // Bind and initialize subsystems.
1690 ////////////////////////////////////////////////////////////////////
1692 globals->get_subsystem_mgr()->bind();
1693 globals->get_subsystem_mgr()->init();
1695 ////////////////////////////////////////////////////////////////////
1696 // Initialize multiplayer subsystem
1697 ////////////////////////////////////////////////////////////////////
1699 globals->set_multiplayer_mgr(new FGMultiplayMgr);
1700 globals->get_multiplayer_mgr()->init();
1702 ////////////////////////////////////////////////////////////////////////
1703 // Initialize the Nasal interpreter.
1704 // Do this last, so that the loaded scripts see initialized state
1705 ////////////////////////////////////////////////////////////////////////
1706 FGNasalSys* nasal = new FGNasalSys();
1707 globals->add_subsystem("nasal", nasal, SGSubsystemMgr::INIT);
1710 // initialize methods that depend on other subsystems.
1711 globals->get_subsystem_mgr()->postinit();
1713 ////////////////////////////////////////////////////////////////////////
1714 // End of subsystem initialization.
1715 ////////////////////////////////////////////////////////////////////
1717 SG_LOG( SG_GENERAL, SG_INFO, endl);
1719 // Save the initial state for future
1721 globals->saveInitialState();
1727 void fgReInitSubsystems()
1729 // static const SGPropertyNode *longitude
1730 // = fgGetNode("/sim/presets/longitude-deg");
1731 // static const SGPropertyNode *latitude
1732 // = fgGetNode("/sim/presets/latitude-deg");
1733 static const SGPropertyNode *altitude
1734 = fgGetNode("/sim/presets/altitude-ft");
1735 static const SGPropertyNode *master_freeze
1736 = fgGetNode("/sim/freeze/master");
1738 SG_LOG( SG_GENERAL, SG_INFO,
1739 "fgReInitSubsystems(): /position/altitude = "
1740 << altitude->getDoubleValue() );
1742 bool freeze = master_freeze->getBoolValue();
1744 fgSetBool("/sim/freeze/master", true);
1746 fgSetBool("/sim/crashed", false);
1748 // Force reupdating the positions of the ai 3d models. They are used for
1749 // initializing ground level for the FDM.
1750 globals->get_subsystem("ai_model")->reinit();
1752 // Initialize the FDM
1755 // allocates structures so must happen before any of the flight
1756 // model or control parameters are set
1757 fgAircraftInit(); // In the future this might not be the case.
1759 // reload offsets from config defaults
1760 globals->get_viewmgr()->reinit();
1764 globals->get_controls()->reset_all();
1766 fgUpdateLocalTime();
1768 // re-init to proper time of day setting
1772 fgSetBool("/sim/freeze/master", false);
1774 fgSetBool("/sim/sceneryloaded",false);
1778 void reInit(void) // from gui_local.cxx -- TODO merge with fgReInitSubsystems()
1780 static SGPropertyNode_ptr master_freeze = fgGetNode("/sim/freeze/master", true);
1782 bool freeze = master_freeze->getBoolValue();
1784 master_freeze->setBoolValue(true);
1786 fgSetBool("/sim/signals/reinit", true);
1787 cur_fdm_state->unbind();
1789 // in case user has changed window size as
1790 // restoreInitialState() overwrites these
1791 int xsize = fgGetInt("/sim/startup/xsize");
1792 int ysize = fgGetInt("/sim/startup/ysize");
1794 // viewports also needs to be saved/restored as
1795 // restoreInitialState() overwrites these
1796 SGPropertyNode *guiNode = new SGPropertyNode;
1797 SGPropertyNode *cameraNode = new SGPropertyNode;
1798 SGPropertyNode *cameraGroupNode = fgGetNode("/sim/rendering/camera-group");
1799 copyProperties(cameraGroupNode->getChild("camera"), cameraNode);
1800 copyProperties(cameraGroupNode->getChild("gui"), guiNode);
1802 globals->restoreInitialState();
1804 // update our position based on current presets
1807 // We don't know how to resize the window, so keep the last values
1808 // for xsize and ysize, and don't use the one set initially
1809 fgSetInt("/sim/startup/xsize", xsize);
1810 fgSetInt("/sim/startup/ysize", ysize);
1812 copyProperties(cameraNode, cameraGroupNode->getChild("camera"));
1813 copyProperties(guiNode, cameraGroupNode->getChild("gui"));
1818 SGTime *t = globals->get_time_params();
1821 globals->set_time_params(t);
1823 fgReInitSubsystems();
1825 globals->get_tile_mgr()->update(fgGetDouble("/environment/visibility-m"));
1826 globals->get_renderer()->resize(xsize, ysize);
1827 fgSetBool("/sim/signals/reinit", false);
1830 master_freeze->setBoolValue(false);