1 // fg_init.cxx -- Flight Gear top level initialization routines
3 // Written by Curtis Olson, started August 1997.
5 // Copyright (C) 1997 Curtis L. Olson - http://www.flightgear.org/~curt
7 // This program is free software; you can redistribute it and/or
8 // modify it under the terms of the GNU General Public License as
9 // published by the Free Software Foundation; either version 2 of the
10 // License, or (at your option) any later version.
12 // This program is distributed in the hope that it will be useful, but
13 // WITHOUT ANY WARRANTY; without even the implied warranty of
14 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 // General Public License for more details.
17 // You should have received a copy of the GNU General Public License
18 // along with this program; if not, write to the Free Software
19 // Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
28 // For BC 5.01 this must be included before OpenGL includes.
29 #ifdef SG_MATH_EXCEPTION_CLASH
35 #include <string.h> // strcmp()
37 #if defined( unix ) || defined( __CYGWIN__ )
38 # include <unistd.h> // for gethostname()
41 // work around a stdc++ lib bug in some versions of linux, but doesn't
42 // seem to hurt to have this here for all versions of Linux.
44 # define _G_NO_EXTERN_TEMPLATES
47 #include <simgear/compiler.h>
51 #include <simgear/constants.h>
52 #include <simgear/debug/logstream.hxx>
53 #include <simgear/structure/exception.hxx>
54 #include <simgear/structure/event_mgr.hxx>
55 #include <simgear/math/point3d.hxx>
56 #include <simgear/math/polar3d.hxx>
57 #include <simgear/math/sg_geodesy.hxx>
58 #include <simgear/misc/sg_path.hxx>
59 #include <simgear/misc/interpolator.hxx>
60 #include <simgear/scene/material/matlib.hxx>
61 #include <simgear/timing/sg_time.hxx>
62 #include <simgear/timing/lowleveltime.h>
64 #include <Aircraft/aircraft.hxx>
65 #include <Aircraft/replay.hxx>
66 #include <Airports/apt_loader.hxx>
67 #include <Airports/runways.hxx>
68 #include <Airports/simple.hxx>
69 #include <AIModel/AIManager.hxx>
70 #include <ATC/ATCdisplay.hxx>
71 #include <ATC/ATCmgr.hxx>
72 #include <ATC/AIMgr.hxx>
73 #include <Autopilot/route_mgr.hxx>
74 #include <Autopilot/xmlauto.hxx>
75 #include <Cockpit/cockpit.hxx>
76 #include <Cockpit/panel.hxx>
77 #include <Cockpit/panel_io.hxx>
79 #include <FDM/SP/ADA.hxx>
80 #include <FDM/SP/ACMS.hxx>
82 #include <FDM/Balloon.h>
83 #include <FDM/ExternalNet/ExternalNet.hxx>
84 #include <FDM/ExternalPipe/ExternalPipe.hxx>
85 #include <FDM/JSBSim/JSBSim.hxx>
86 #include <FDM/LaRCsim/LaRCsim.hxx>
87 #include <FDM/MagicCarpet.hxx>
88 #include <FDM/UFO.hxx>
89 #include <FDM/NullFDM.hxx>
90 #include <FDM/YASim/YASim.hxx>
91 #include <GUI/new_gui.hxx>
92 #include <Include/general.hxx>
93 #include <Input/input.hxx>
94 #include <Instrumentation/instrument_mgr.hxx>
95 #include <Model/acmodel.hxx>
96 #include <AIModel/submodel.hxx>
97 #include <AIModel/AIManager.hxx>
98 #include <Navaids/navdb.hxx>
99 #include <Navaids/navlist.hxx>
100 #include <Scenery/scenery.hxx>
101 #include <Scenery/tilemgr.hxx>
102 #include <Scripting/NasalSys.hxx>
103 #include <Sound/fg_fx.hxx>
104 #include <Sound/beacon.hxx>
105 #include <Sound/morse.hxx>
106 #include <Sound/voice.hxx>
107 #include <Systems/system_mgr.hxx>
108 #include <Time/light.hxx>
109 #include <Time/sunsolver.hxx>
110 #include <Time/tmp.hxx>
111 #include <Traffic/TrafficMgr.hxx>
112 #include <MultiPlayer/multiplaymgr.hxx>
114 #include <Environment/environment_mgr.hxx>
116 #include "fg_init.hxx"
118 #include "fg_commands.hxx"
119 #include "fg_props.hxx"
120 #include "options.hxx"
121 #include "globals.hxx"
122 #include "logger.hxx"
123 #include "viewmgr.hxx"
126 #if defined(FX) && defined(XMESA)
127 #include <GL/xmesa.h>
130 SG_USING_STD(string);
134 extern const char *default_root;
138 // Scan the command line options for the specified option and return
140 static string fgScanForOption( const string& option, int argc, char **argv ) {
143 if (hostname == NULL)
146 gethostname(_hostname, 256);
147 hostname = strdup(_hostname);
148 free_hostname = true;
151 SG_LOG(SG_GENERAL, SG_INFO, "Scanning command line for: " << option );
153 int len = option.length();
156 SG_LOG( SG_GENERAL, SG_DEBUG, "argv[" << i << "] = " << argv[i] );
158 string arg = argv[i];
159 if ( arg.find( option ) == 0 ) {
160 return arg.substr( len );
170 // Scan the user config files for the specified option and return
172 static string fgScanForOption( const string& option, const string& path ) {
173 sg_gzifstream in( path );
174 if ( !in.is_open() ) {
178 SG_LOG( SG_GENERAL, SG_INFO, "Scanning " << path << " for: " << option );
180 int len = option.length();
184 while ( ! in.eof() ) {
187 while ( in.get(c) && c != '\0' ) {
192 #if defined( macintosh )
193 getline( in, line, '\r' );
195 getline( in, line, '\n' );
198 // catch extraneous (DOS) line ending character
199 if ( line[line.length() - 1] < 32 ) {
200 line = line.substr( 0, line.length()-1 );
203 if ( line.find( option ) == 0 ) {
204 return line.substr( len );
213 // Scan the user config files for the specified option and return
215 static string fgScanForOption( const string& option ) {
218 #if defined( unix ) || defined( __CYGWIN__ )
219 // Next check home directory for .fgfsrc.hostname file
221 if ( homedir != NULL ) {
222 SGPath config( homedir );
223 config.append( ".fgfsrc" );
224 config.concat( "." );
225 config.concat( hostname );
226 arg = fgScanForOption( option, config.str() );
231 // Next check home directory for .fgfsrc file
233 if ( homedir != NULL ) {
234 SGPath config( homedir );
235 config.append( ".fgfsrc" );
236 arg = fgScanForOption( option, config.str() );
241 // Check for $fg_root/system.fgfsrc
242 SGPath config( globals->get_fg_root() );
243 config.append( "system.fgfsrc" );
244 arg = fgScanForOption( option, config.str() );
251 // Read in configuration (files and command line options) but only set
253 bool fgInitFGRoot ( int argc, char **argv ) {
256 // First parse command line options looking for --fg-root=, this
257 // will override anything specified in a config file
258 root = fgScanForOption( "--fg-root=", argc, argv);
260 // Check in one of the user configuration files.
262 root = fgScanForOption( "--fg-root=" );
264 // Next check if fg-root is set as an env variable
265 if ( root.empty() ) {
266 char *envp = ::getenv( "FG_ROOT" );
267 if ( envp != NULL ) {
272 // Otherwise, default to a random compiled-in location if we can't
273 // find fg-root any other way.
274 if ( root.empty() ) {
275 #if defined( __CYGWIN__ )
276 root = "/FlightGear";
277 #elif defined( WIN32 )
278 root = "\\FlightGear";
279 #elif defined(OSX_BUNDLE)
280 /* the following code looks for the base package directly inside
281 the application bundle. This can be changed fairly easily by
282 fiddling with the code below. And yes, I know it's ugly and verbose.
284 CFBundleRef appBundle = CFBundleGetMainBundle();
285 CFURLRef appUrl = CFBundleCopyBundleURL(appBundle);
286 CFRelease(appBundle);
288 // look for a 'data' subdir directly inside the bundle : is there
289 // a better place? maybe in Resources? I don't know ...
290 CFURLRef dataDir = CFURLCreateCopyAppendingPathComponent(NULL, appUrl, 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());
297 CFRelease(appBundle);
305 SG_LOG(SG_INPUT, SG_INFO, "fg_root = " << root );
306 globals->set_fg_root(root);
312 // Read in configuration (files and command line options) but only set
314 bool fgInitFGAircraft ( int argc, char **argv ) {
317 // First parse command line options looking for --aircraft=, this
318 // will override anything specified in a config file
319 aircraft = fgScanForOption( "--aircraft=", argc, argv );
321 // Check in one of the user configuration files.
322 if ( aircraft.empty() )
323 aircraft = fgScanForOption( "--aircraft=" );
325 // if an aircraft was specified, set the property name
326 if ( !aircraft.empty() ) {
327 SG_LOG(SG_INPUT, SG_INFO, "aircraft = " << aircraft );
328 fgSetString("/sim/aircraft", aircraft.c_str() );
330 SG_LOG(SG_INPUT, SG_INFO, "No user specified aircraft, using default" );
337 // Return the current base package version
338 string fgBasePackageVersion() {
339 SGPath base_path( globals->get_fg_root() );
340 base_path.append("version");
342 sg_gzifstream in( base_path.str() );
343 if ( !in.is_open() ) {
344 SGPath old_path( globals->get_fg_root() );
345 old_path.append( "Thanks" );
346 sg_gzifstream old( old_path.str() );
347 if ( !old.is_open() ) {
350 return "[old version]";
361 // Initialize the localization
362 SGPropertyNode *fgInitLocale(const char *language) {
363 SGPropertyNode *c_node = NULL, *d_node = NULL;
364 SGPropertyNode *intl = fgGetNode("/sim/intl");
366 SG_LOG(SG_GENERAL, SG_INFO, "Selecting language: " << language );
368 // localization not defined
373 // Select the proper language from the list
375 vector<SGPropertyNode_ptr> locale = intl->getChildren("locale");
376 for (unsigned int i = 0; i < locale.size(); i++) {
378 vector<SGPropertyNode_ptr> lang = locale[i]->getChildren("lang");
379 for (unsigned int j = 0; j < lang.size(); j++) {
381 if (!strcmp(lang[j]->getStringValue(), language)) {
390 d_node = intl->getChild("locale");
394 // Check for localized font
395 SGPropertyNode *font_n = c_node->getNode("font", true);
396 if ( !strcmp(font_n->getStringValue(), "") )
397 font_n->setStringValue(d_node->getStringValue("font", "typewriter.txf"));
401 // Load the default strings
403 SGPath d_path( globals->get_fg_root() );
405 const char *d_path_str = d_node->getStringValue("strings");
407 SG_LOG(SG_GENERAL, SG_ALERT, "Incorrect path in configuration file.");
411 d_path.append(d_path_str);
412 SG_LOG(SG_GENERAL, SG_INFO, "Reading localized strings from "
415 SGPropertyNode *strings = c_node->getNode("strings");
417 readProperties(d_path.str(), strings);
418 } catch (const sg_exception &e) {
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, "Incorrect path in configuration file.");
435 c_path.append(c_path_str);
436 SG_LOG(SG_GENERAL, SG_INFO, "Reading localized strings from "
440 readProperties(c_path.str(), strings);
441 } catch (const sg_exception &e) {
442 SG_LOG(SG_GENERAL, SG_ALERT, "Unable to read the localized strings");
452 // Initialize the localization routines
453 bool fgDetectLanguage() {
454 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);
511 static string fgFindAircraftPath( const SGPath &path, const string &aircraft, int depth = 0 ) {
513 ulDir *dirp = ulOpenDir(path.str().c_str());
515 cerr << "Unable to open aircraft directory '" << path.str() << '\'' << endl;
520 while ((dire = ulReadDir(dirp)) != NULL) {
521 if (dire->d_isdir && depth < MAXDEPTH) {
522 if ( strcmp("CVS", dire->d_name) && strcmp(".", dire->d_name)
523 && strcmp("..", dire->d_name) && strcmp("AI", dire->d_name))
526 next.append(dire->d_name);
528 result = fgFindAircraftPath( next, aircraft, depth + 1 );
529 if ( ! result.empty() ) {
533 } else if ( !strcmp(dire->d_name, aircraft.c_str()) ) {
544 // Read in configuration (file and command line)
545 bool fgInitConfig ( int argc, char **argv ) {
547 // First, set some sane default values
550 // Read global preferences from $FG_ROOT/preferences.xml
551 SG_LOG(SG_INPUT, SG_INFO, "Reading global preferences");
552 fgLoadProps("preferences.xml", globals->get_props());
553 SG_LOG(SG_INPUT, SG_INFO, "Finished Reading global preferences");
555 // Detect the required language as early as possible
556 if ( !fgDetectLanguage() ) {
560 // Scan user config files and command line for a specified aircraft.
561 fgInitFGAircraft(argc, argv);
563 string aircraft = fgGetString( "/sim/aircraft", "" );
564 if ( aircraft.size() > 0 ) {
565 SGPath aircraft_search( globals->get_fg_root() );
566 aircraft_search.append( "Aircraft" );
568 string aircraft_set = aircraft + "-set.xml";
570 string result = fgFindAircraftPath( aircraft_search, aircraft_set );
571 if ( !result.empty() ) {
572 fgSetString( "/sim/aircraft-dir", result.c_str() );
573 SGPath full_name( result );
574 full_name.append( aircraft_set );
576 SG_LOG(SG_INPUT, SG_INFO, "Reading default aircraft: " << aircraft
577 << " from " << full_name.str());
579 readProperties( full_name.str(), globals->get_props() );
580 } catch ( const sg_exception &e ) {
581 string message = "Error reading default aircraft: ";
582 message += e.getFormattedMessage();
583 SG_LOG(SG_INPUT, SG_ALERT, message);
587 SG_LOG( SG_INPUT, SG_ALERT, "Cannot find specified aircraft: "
593 SG_LOG( SG_INPUT, SG_ALERT, "No default aircraft specified" );
597 char *envp = ::getenv( "APPDATA" );
599 SGPath config( envp );
600 config.append( "flightgear.org" );
602 if ( homedir != NULL ) {
603 SGPath config( homedir );
604 config.append( ".fgfs" );
606 fgSetString("/sim/fg-home", config.c_str());
607 config.append( "autosave.xml" );
608 SG_LOG(SG_INPUT, SG_INFO, "Reading user settings from " << config.str());
610 readProperties(config.str(), globals->get_props(), SGPropertyNode::USERARCHIVE);
612 SG_LOG(SG_INPUT, SG_DEBUG, "First time reading user settings");
614 SG_LOG(SG_INPUT, SG_DEBUG, "Finished Reading user settings");
617 // parse options after loading aircraft to ensure any user
618 // overrides of defaults are honored.
619 do_options(argc, argv);
630 // This function is never used, but maybe useful in the future ???
633 // Preset lon/lat given an airport id
634 static bool fgSetPosFromAirportID( const string& id ) {
638 SG_LOG( SG_GENERAL, SG_INFO,
639 "Attempting to set starting position from airport code " << id );
641 if ( fgFindAirportID( id, &a ) ) {
643 fgSetDouble("/sim/presets/longitude-deg", a->longitude );
644 fgSetDouble("/sim/presets/latitude-deg", a->latitude );
646 // other code depends on the actual postition being set so set
648 fgSetDouble("/position/longitude-deg", a->longitude );
649 fgSetDouble("/position/latitude-deg", a->latitude );
651 SG_LOG( SG_GENERAL, SG_INFO,
652 "Position for " << id << " is (" << a->longitude
653 << ", " << a->latitude << ")" );
663 // Set current tower position lon/lat given an airport id
664 static bool fgSetTowerPosFromAirportID( const string& id, double hdg ) {
666 // tower height hard coded for now...
667 float towerheight=50.0f;
669 // make a little off the heading for 1 runway airports...
670 float fudge_lon = fabs(sin(hdg)) * .003f;
671 float fudge_lat = .003f - fudge_lon;
673 const FGAirport *a = fgFindAirportID( id);
675 fgSetDouble("/sim/tower/longitude-deg", a->getLongitude() + fudge_lon);
676 fgSetDouble("/sim/tower/latitude-deg", a->getLatitude() + fudge_lat);
677 fgSetDouble("/sim/tower/altitude-ft", a->getElevation() + towerheight);
685 struct FGTowerLocationListener : SGPropertyChangeListener {
686 void valueChanged(SGPropertyNode* node) {
687 const double hdg = fgGetDouble( "/orientation/heading-deg", 0);
688 const string id(node->getStringValue());
689 fgSetTowerPosFromAirportID(id, hdg);
693 static void fgInitTowerLocationListener() {
694 fgGetNode("/sim/tower/airport-id", true)
695 ->addChangeListener( new FGTowerLocationListener() );
698 // Set current_options lon/lat given an airport id and heading (degrees)
699 static bool fgSetPosFromAirportIDandHdg( const string& id, double tgt_hdg ) {
703 // set initial position from runway and heading
705 SG_LOG( SG_GENERAL, SG_INFO,
706 "Attempting to set starting position from airport code "
707 << id << " heading " << tgt_hdg );
709 if ( ! globals->get_runways()->search( id, (int)tgt_hdg, &r ) ) {
710 SG_LOG( SG_GENERAL, SG_ALERT,
711 "Failed to find a good runway for " << id << '\n' );
718 double lat2, lon2, az2;
719 double heading = r._heading;
720 double azimuth = heading + 180.0;
721 while ( azimuth >= 360.0 ) { azimuth -= 360.0; }
723 SG_LOG( SG_GENERAL, SG_INFO,
724 "runway = " << r._lon << ", " << r._lat
725 << " length = " << r._length * SG_FEET_TO_METER
726 << " heading = " << azimuth );
728 geo_direct_wgs_84 ( 0, r._lat, r._lon, azimuth,
729 r._length * SG_FEET_TO_METER * 0.5 - 5.0,
730 &lat2, &lon2, &az2 );
732 if ( fabs( fgGetDouble("/sim/presets/offset-distance") ) > SG_EPSILON ) {
734 double odist = fgGetDouble("/sim/presets/offset-distance");
735 odist *= SG_NM_TO_METER;
736 double oaz = azimuth;
737 if ( fabs(fgGetDouble("/sim/presets/offset-azimuth")) > SG_EPSILON ) {
738 oaz = fgGetDouble("/sim/presets/offset-azimuth") + 180;
741 while ( oaz >= 360.0 ) { oaz -= 360.0; }
742 geo_direct_wgs_84 ( 0, lat2, lon2, oaz, odist, &olat, &olon, &az2 );
748 fgSetDouble("/sim/presets/longitude-deg", lon2 );
749 fgSetDouble("/sim/presets/latitude-deg", lat2 );
750 fgSetDouble("/sim/presets/heading-deg", heading );
752 // other code depends on the actual values being set ...
753 fgSetDouble("/position/longitude-deg", lon2 );
754 fgSetDouble("/position/latitude-deg", lat2 );
755 fgSetDouble("/orientation/heading-deg", heading );
757 SG_LOG( SG_GENERAL, SG_INFO,
758 "Position for " << id << " is ("
760 << lat2 << ") new heading is "
767 // Set current_options lon/lat given an airport id and runway number
768 static bool fgSetPosFromAirportIDandRwy( const string& id, const string& rwy, bool rwy_req ) {
772 // set initial position from airport and runway number
774 SG_LOG( SG_GENERAL, SG_INFO,
775 "Attempting to set starting position for "
776 << id << ":" << rwy );
778 if ( ! globals->get_runways()->search( id, rwy, &r ) ) {
779 SG_LOG( SG_GENERAL, rwy_req ? SG_ALERT : SG_INFO,
780 "Failed to find runway " << rwy <<
781 " at airport " << id << ". Using default runway." );
788 double lat2, lon2, az2;
789 double heading = r._heading;
790 double azimuth = heading + 180.0;
791 while ( azimuth >= 360.0 ) { azimuth -= 360.0; }
793 SG_LOG( SG_GENERAL, SG_INFO,
794 "runway = " << r._lon << ", " << r._lat
795 << " length = " << r._length * SG_FEET_TO_METER
796 << " heading = " << azimuth );
798 geo_direct_wgs_84 ( 0, r._lat, r._lon,
800 r._length * SG_FEET_TO_METER * 0.5 - 5.0,
801 &lat2, &lon2, &az2 );
803 if ( fabs( fgGetDouble("/sim/presets/offset-distance") ) > SG_EPSILON )
806 double odist = fgGetDouble("/sim/presets/offset-distance");
807 odist *= SG_NM_TO_METER;
808 double oaz = azimuth;
809 if ( fabs(fgGetDouble("/sim/presets/offset-azimuth")) > SG_EPSILON )
811 oaz = fgGetDouble("/sim/presets/offset-azimuth") + 180;
812 heading = fgGetDouble("/sim/presets/heading-deg");
814 while ( oaz >= 360.0 ) { oaz -= 360.0; }
815 geo_direct_wgs_84 ( 0, lat2, lon2, oaz, odist, &olat, &olon, &az2 );
821 fgSetDouble("/sim/presets/longitude-deg", lon2 );
822 fgSetDouble("/sim/presets/latitude-deg", lat2 );
823 fgSetDouble("/sim/presets/heading-deg", heading );
825 // other code depends on the actual values being set ...
826 fgSetDouble("/position/longitude-deg", lon2 );
827 fgSetDouble("/position/latitude-deg", lat2 );
828 fgSetDouble("/orientation/heading-deg", heading );
830 SG_LOG( SG_GENERAL, SG_INFO,
831 "Position for " << id << " is ("
833 << lat2 << ") new heading is "
840 static void fgSetDistOrAltFromGlideSlope() {
841 // cout << "fgSetDistOrAltFromGlideSlope()" << endl;
842 string apt_id = fgGetString("/sim/presets/airport-id");
843 double gs = fgGetDouble("/sim/presets/glideslope-deg")
844 * SG_DEGREES_TO_RADIANS ;
845 double od = fgGetDouble("/sim/presets/offset-distance");
846 double alt = fgGetDouble("/sim/presets/altitude-ft");
848 double apt_elev = 0.0;
849 if ( ! apt_id.empty() ) {
850 apt_elev = fgGetAirportElev( apt_id );
851 if ( apt_elev < -9990.0 ) {
858 if( fabs(gs) > 0.01 && fabs(od) > 0.1 && alt < -9990 ) {
859 // set altitude from glideslope and offset-distance
860 od *= SG_NM_TO_METER * SG_METER_TO_FEET;
861 alt = fabs(od*tan(gs)) + apt_elev;
862 fgSetDouble("/sim/presets/altitude-ft", alt);
863 fgSetBool("/sim/presets/onground", false);
864 SG_LOG( SG_GENERAL, SG_INFO, "Calculated altitude as: "
866 } else if( fabs(gs) > 0.01 && alt > 0 && fabs(od) < 0.1) {
867 // set offset-distance from glideslope and altitude
868 od = (alt - apt_elev) / tan(gs);
869 od *= -1*SG_FEET_TO_METER * SG_METER_TO_NM;
870 fgSetDouble("/sim/presets/offset-distance", od);
871 fgSetBool("/sim/presets/onground", false);
872 SG_LOG( SG_GENERAL, SG_INFO, "Calculated offset distance as: "
874 } else if( fabs(gs) > 0.01 ) {
875 SG_LOG( SG_GENERAL, SG_ALERT,
876 "Glideslope given but not altitude or offset-distance." );
877 SG_LOG( SG_GENERAL, SG_ALERT, "Resetting glideslope to zero" );
878 fgSetDouble("/sim/presets/glideslope-deg", 0);
879 fgSetBool("/sim/presets/onground", true);
884 // Set current_options lon/lat given an airport id and heading (degrees)
885 static bool fgSetPosFromNAV( const string& id, const double& freq ) {
887 = globals->get_navlist()->findByIdentAndFreq( id.c_str(), freq );
889 // set initial position from runway and heading
891 SG_LOG( SG_GENERAL, SG_INFO, "Attempting to set starting position for "
892 << id << ":" << freq );
894 double lon = nav->get_lon();
895 double lat = nav->get_lat();
897 if ( fabs( fgGetDouble("/sim/presets/offset-distance") ) > SG_EPSILON )
899 double odist = fgGetDouble("/sim/presets/offset-distance")
901 double oaz = fabs(fgGetDouble("/sim/presets/offset-azimuth"))
903 while ( oaz >= 360.0 ) { oaz -= 360.0; }
904 double olat, olon, az2;
905 geo_direct_wgs_84 ( 0, lat, lon, oaz, odist, &olat, &olon, &az2 );
912 fgSetDouble("/sim/presets/longitude-deg", lon );
913 fgSetDouble("/sim/presets/latitude-deg", lat );
915 // other code depends on the actual values being set ...
916 fgSetDouble("/position/longitude-deg", lon );
917 fgSetDouble("/position/latitude-deg", lat );
918 fgSetDouble("/orientation/heading-deg",
919 fgGetDouble("/sim/presets/heading-deg") );
921 SG_LOG( SG_GENERAL, SG_INFO,
922 "Position for " << id << ":" << freq << " is ("
923 << lon << ", "<< lat << ")" );
927 SG_LOG( SG_GENERAL, SG_ALERT, "Failed to locate NAV = "
928 << id << ":" << freq );
933 // Set current_options lon/lat given an aircraft carrier id
934 static bool fgSetPosFromCarrier( const string& carrier, const string& posid ) {
936 // set initial position from runway and heading
940 if (FGAIManager::getStartPosition(carrier, posid, geodPos, heading, uvw)) {
941 double lon = geodPos.getLongitudeDeg();
942 double lat = geodPos.getLatitudeDeg();
943 double alt = geodPos.getElevationFt();
945 SG_LOG( SG_GENERAL, SG_INFO, "Attempting to set starting position for "
946 << carrier << " at lat = " << lat << ", lon = " << lon
947 << ", alt = " << alt << ", heading = " << heading);
949 fgSetDouble("/sim/presets/longitude-deg", lon);
950 fgSetDouble("/sim/presets/latitude-deg", lat);
951 fgSetDouble("/sim/presets/altitude-ft", alt);
952 fgSetDouble("/sim/presets/heading-deg", heading);
953 fgSetDouble("/position/longitude-deg", lon);
954 fgSetDouble("/position/latitude-deg", lat);
955 fgSetDouble("/position/altitude-ft", alt);
956 fgSetDouble("/orientation/heading-deg", heading);
958 fgSetString("/sim/presets/speed-set", "UVW");
959 fgSetDouble("/velocities/uBody-fps", uvw(0));
960 fgSetDouble("/velocities/vBody-fps", uvw(1));
961 fgSetDouble("/velocities/wBody-fps", uvw(2));
962 fgSetDouble("/sim/presets/uBody-fps", uvw(0));
963 fgSetDouble("/sim/presets/vBody-fps", uvw(1));
964 fgSetDouble("/sim/presets/wBody-fps", uvw(2));
966 fgSetBool("/sim/presets/onground", true);
970 SG_LOG( SG_GENERAL, SG_ALERT, "Failed to locate aircraft carrier = "
976 // Set current_options lon/lat given an airport id and heading (degrees)
977 static bool fgSetPosFromFix( const string& id ) {
980 // set initial position from runway and heading
981 if ( globals->get_fixlist()->query( id.c_str(), &fix ) ) {
982 SG_LOG( SG_GENERAL, SG_INFO, "Attempting to set starting position for "
985 double lon = fix.get_lon();
986 double lat = fix.get_lat();
988 if ( fabs( fgGetDouble("/sim/presets/offset-distance") ) > SG_EPSILON )
990 double odist = fgGetDouble("/sim/presets/offset-distance")
992 double oaz = fabs(fgGetDouble("/sim/presets/offset-azimuth"))
994 while ( oaz >= 360.0 ) { oaz -= 360.0; }
995 double olat, olon, az2;
996 geo_direct_wgs_84 ( 0, lat, lon, oaz, odist, &olat, &olon, &az2 );
1003 fgSetDouble("/sim/presets/longitude-deg", lon );
1004 fgSetDouble("/sim/presets/latitude-deg", lat );
1006 // other code depends on the actual values being set ...
1007 fgSetDouble("/position/longitude-deg", lon );
1008 fgSetDouble("/position/latitude-deg", lat );
1009 fgSetDouble("/orientation/heading-deg",
1010 fgGetDouble("/sim/presets/heading-deg") );
1012 SG_LOG( SG_GENERAL, SG_INFO,
1013 "Position for " << id << " is ("
1014 << lon << ", "<< lat << ")" );
1018 SG_LOG( SG_GENERAL, SG_ALERT, "Failed to locate NAV = "
1026 * Initialize vor/ndb/ils/fix list management and query systems (as
1027 * well as simple airport db list)
1032 SG_LOG(SG_GENERAL, SG_INFO, "Loading Airport Database ...");
1034 SGPath aptdb( globals->get_fg_root() );
1035 aptdb.append( "Airports/apt.dat" );
1037 SGPath p_metar( globals->get_fg_root() );
1038 p_metar.append( "Airports/metar.dat" );
1040 FGAirportList *airports = new FGAirportList();
1041 globals->set_airports( airports );
1042 FGRunwayList *runways = new FGRunwayList();
1043 globals->set_runways( runways );
1045 fgAirportDBLoad( airports, runways, aptdb.str(), p_metar.str() );
1047 FGNavList *navlist = new FGNavList;
1048 FGNavList *loclist = new FGNavList;
1049 FGNavList *gslist = new FGNavList;
1050 FGNavList *dmelist = new FGNavList;
1051 FGNavList *mkrlist = new FGNavList;
1052 FGNavList *tacanlist = new FGNavList;
1053 FGNavList *carrierlist = new FGNavList;
1054 FGTACANList *channellist = new FGTACANList;
1056 globals->set_navlist( navlist );
1057 globals->set_loclist( loclist );
1058 globals->set_gslist( gslist );
1059 globals->set_dmelist( dmelist );
1060 globals->set_mkrlist( mkrlist );
1061 globals->set_tacanlist( tacanlist );
1062 globals->set_carrierlist( carrierlist );
1063 globals->set_channellist( channellist );
1065 if ( !fgNavDBInit(airports, navlist, loclist, gslist, dmelist, mkrlist, tacanlist, carrierlist, channellist) ) {
1066 SG_LOG( SG_GENERAL, SG_ALERT,
1067 "Problems loading one or more navigational database" );
1070 if ( fgGetBool("/sim/navdb/localizers/auto-align", true) ) {
1071 // align all the localizers with their corresponding runways
1072 // since data sources are good for cockpit navigation
1073 // purposes, but not always to the error tolerances needed to
1074 // exactly place these items.
1076 = fgGetDouble( "/sim/navdb/localizers/auto-align-threshold-deg",
1078 fgNavDBAlignLOCwithRunway( runways, loclist, threshold );
1081 SG_LOG(SG_GENERAL, SG_INFO, " Fixes");
1082 SGPath p_fix( globals->get_fg_root() );
1083 p_fix.append( "Navaids/fix.dat" );
1084 FGFixList *fixlist = new FGFixList;
1085 fixlist->init( p_fix );
1086 globals->set_fixlist( fixlist );
1088 SG_LOG(SG_GENERAL, SG_INFO, " Airways");
1089 SGPath p_awy( globals->get_fg_root() );
1090 p_awy.append( "Navaids/awy.dat" );
1091 FGAirwayNetwork *awyNet = new FGAirwayNetwork;
1092 //cerr << "Loading Airways" << endl;
1093 awyNet->load (p_awy );
1095 //cerr << "initializing airways" << endl;
1096 globals->set_airwaynet( awyNet );
1102 // Set the initial position based on presets (or defaults)
1103 bool fgInitPosition() {
1104 // cout << "fgInitPosition()" << endl;
1105 double gs = fgGetDouble("/sim/presets/glideslope-deg")
1106 * SG_DEGREES_TO_RADIANS ;
1107 double od = fgGetDouble("/sim/presets/offset-distance");
1108 double alt = fgGetDouble("/sim/presets/altitude-ft");
1110 bool set_pos = false;
1112 // If glideslope is specified, then calculate offset-distance or
1113 // altitude relative to glide slope if either of those was not
1115 if ( fabs( gs ) > 0.01 ) {
1116 fgSetDistOrAltFromGlideSlope();
1120 // If we have an explicit, in-range lon/lat, don't change it, just use it.
1121 // If not, check for an airport-id and use that.
1122 // If not, default to the middle of the KSFO field.
1123 // The default values for lon/lat are deliberately out of range
1124 // so that the airport-id can take effect; valid lon/lat will
1125 // override airport-id, however.
1126 double lon_deg = fgGetDouble("/sim/presets/longitude-deg");
1127 double lat_deg = fgGetDouble("/sim/presets/latitude-deg");
1128 if ( lon_deg >= -180.0 && lon_deg <= 180.0
1129 && lat_deg >= -90.0 && lat_deg <= 90.0 )
1134 string apt = fgGetString("/sim/presets/airport-id");
1135 string rwy_no = fgGetString("/sim/presets/runway");
1136 bool rwy_req = fgGetBool("/sim/presets/runway-requested");
1137 double hdg = fgGetDouble("/sim/presets/heading-deg");
1138 string vor = fgGetString("/sim/presets/vor-id");
1139 double vor_freq = fgGetDouble("/sim/presets/vor-freq");
1140 string ndb = fgGetString("/sim/presets/ndb-id");
1141 double ndb_freq = fgGetDouble("/sim/presets/ndb-freq");
1142 string carrier = fgGetString("/sim/presets/carrier");
1143 string parkpos = fgGetString("/sim/presets/parkpos");
1144 string fix = fgGetString("/sim/presets/fix");
1146 fgSetDouble( "/orientation/heading-deg", hdg );
1147 fgInitTowerLocationListener();
1149 if ( !set_pos && !apt.empty() && !rwy_no.empty() ) {
1150 // An airport + runway is requested
1151 if ( fgSetPosFromAirportIDandRwy( apt, rwy_no, rwy_req ) ) {
1152 // set tower position (a little off the heading for single
1154 fgSetString("/sim/tower/airport-id", apt.c_str());
1159 if ( !set_pos && !apt.empty() ) {
1160 // An airport is requested (find runway closest to hdg)
1161 if ( fgSetPosFromAirportIDandHdg( apt, hdg ) ) {
1162 // set tower position (a little off the heading for single
1164 fgSetString("/sim/tower/airport-id", apt.c_str());
1169 if ( !set_pos && !vor.empty() ) {
1170 // a VOR is requested
1171 if ( fgSetPosFromNAV( vor, vor_freq ) ) {
1176 if ( !set_pos && !ndb.empty() ) {
1177 // an NDB is requested
1178 if ( fgSetPosFromNAV( ndb, ndb_freq ) ) {
1183 if ( !set_pos && !carrier.empty() ) {
1184 // an aircraft carrier is requested
1185 if ( fgSetPosFromCarrier( carrier, parkpos ) ) {
1190 if ( !set_pos && !fix.empty() ) {
1191 // a Fix is requested
1192 if ( fgSetPosFromFix( fix ) ) {
1198 // No lon/lat specified, no airport specified, default to
1199 // middle of KSFO field.
1200 fgSetDouble("/sim/presets/longitude-deg", -122.374843);
1201 fgSetDouble("/sim/presets/latitude-deg", 37.619002);
1204 fgSetDouble( "/position/longitude-deg",
1205 fgGetDouble("/sim/presets/longitude-deg") );
1206 fgSetDouble( "/position/latitude-deg",
1207 fgGetDouble("/sim/presets/latitude-deg") );
1209 // determine if this should be an on-ground or in-air start
1210 if ((fabs(gs) > 0.01 || fabs(od) > 0.1 || alt > 0.1) && carrier.empty()) {
1211 fgSetBool("/sim/presets/onground", false);
1213 fgSetBool("/sim/presets/onground", true);
1220 // General house keeping initializations
1221 bool fgInitGeneral() {
1224 #if defined(FX) && defined(XMESA)
1225 char *mesa_win_state;
1228 SG_LOG( SG_GENERAL, SG_INFO, "General Initialization" );
1229 SG_LOG( SG_GENERAL, SG_INFO, "======= ==============" );
1231 root = globals->get_fg_root();
1232 if ( ! root.length() ) {
1233 // No root path set? Then bail ...
1234 SG_LOG( SG_GENERAL, SG_ALERT,
1235 "Cannot continue without a path to the base package "
1236 << "being defined." );
1239 SG_LOG( SG_GENERAL, SG_INFO, "FG_ROOT = " << '"' << root << '"' << endl );
1241 #if defined(FX) && defined(XMESA)
1242 // initialize full screen flag
1243 globals->set_fullscreen(false);
1244 if ( strstr ( general.get_glRenderer(), "Glide" ) ) {
1245 // Test for the MESA_GLX_FX env variable
1246 if ( (mesa_win_state = getenv( "MESA_GLX_FX" )) != NULL) {
1247 // test if we are fullscreen mesa/glide
1248 if ( (mesa_win_state[0] == 'f') ||
1249 (mesa_win_state[0] == 'F') ) {
1250 globals->set_fullscreen(true);
1260 // Initialize the flight model subsystem. This just creates the
1261 // object. The actual fdm initialization is delayed until we get a
1262 // proper scenery elevation hit. This is checked for in main.cxx
1266 if ( cur_fdm_state ) {
1267 delete cur_fdm_state;
1271 double dt = 1.0 / fgGetInt("/sim/model-hz");
1272 string model = fgGetString("/sim/flight-model");
1275 if ( model == "larcsim" ) {
1276 cur_fdm_state = new FGLaRCsim( dt );
1277 } else if ( model == "jsb" ) {
1278 cur_fdm_state = new FGJSBsim( dt );
1280 } else if ( model == "ada" ) {
1281 cur_fdm_state = new FGADA( dt );
1282 } else if ( model == "acms" ) {
1283 cur_fdm_state = new FGACMS( dt );
1285 } else if ( model == "balloon" ) {
1286 cur_fdm_state = new FGBalloonSim( dt );
1287 } else if ( model == "magic" ) {
1288 cur_fdm_state = new FGMagicCarpet( dt );
1289 } else if ( model == "ufo" ) {
1290 cur_fdm_state = new FGUFO( dt );
1291 } else if ( model == "external" ) {
1292 // external is a synonym for "--fdm=null" and is
1293 // maintained here for backwards compatibility
1294 cur_fdm_state = new FGNullFDM( dt );
1295 } else if ( model.find("network") == 0 ) {
1296 string host = "localhost";
1300 string net_options = model.substr(8);
1301 string::size_type begin, end;
1304 end = net_options.find( ",", begin );
1305 if ( end != string::npos ) {
1306 host = net_options.substr(begin, end - begin);
1310 end = net_options.find( ",", begin );
1311 if ( end != string::npos ) {
1312 port1 = atoi( net_options.substr(begin, end - begin).c_str() );
1316 end = net_options.find( ",", begin );
1317 if ( end != string::npos ) {
1318 port2 = atoi( net_options.substr(begin, end - begin).c_str() );
1322 end = net_options.find( ",", begin );
1323 if ( end != string::npos ) {
1324 port3 = atoi( net_options.substr(begin, end - begin).c_str() );
1327 cur_fdm_state = new FGExternalNet( dt, host, port1, port2, port3 );
1328 } else if ( model.find("pipe") == 0 ) {
1329 // /* old */ string pipe_path = model.substr(5);
1330 // /* old */ cur_fdm_state = new FGExternalPipe( dt, pipe_path );
1331 string pipe_path = "";
1332 string pipe_protocol = "";
1333 string pipe_options = model.substr(5);
1334 string::size_type begin, end;
1337 end = pipe_options.find( ",", begin );
1338 if ( end != string::npos ) {
1339 pipe_path = pipe_options.substr(begin, end - begin);
1342 // protocol (last option)
1343 pipe_protocol = pipe_options.substr(begin);
1344 cur_fdm_state = new FGExternalPipe( dt, pipe_path, pipe_protocol );
1345 } else if ( model == "null" ) {
1346 cur_fdm_state = new FGNullFDM( dt );
1347 } else if ( model == "yasim" ) {
1348 cur_fdm_state = new YASim( dt );
1350 SG_LOG(SG_GENERAL, SG_ALERT,
1351 "Unrecognized flight model '" << model
1352 << "', cannot init flight dynamics model.");
1356 SG_LOG(SG_GENERAL, SG_ALERT, "FlightGear aborting\n\n");
1361 // Initialize view parameters
1363 // force update of model so that viewer can get some data...
1364 globals->get_aircraft_model()->update(0);
1365 // run update for current view so that data is current...
1366 globals->get_viewmgr()->update(0);
1370 SGTime *fgInitTime() {
1372 static const SGPropertyNode *longitude
1373 = fgGetNode("/position/longitude-deg");
1374 static const SGPropertyNode *latitude
1375 = fgGetNode("/position/latitude-deg");
1376 static const SGPropertyNode *cur_time_override
1377 = fgGetNode("/sim/time/cur-time-override", true);
1379 SGPath zone( globals->get_fg_root() );
1380 zone.append( "Timezone" );
1381 SGTime *t = new SGTime( longitude->getDoubleValue()
1382 * SGD_DEGREES_TO_RADIANS,
1383 latitude->getDoubleValue()
1384 * SGD_DEGREES_TO_RADIANS,
1386 cur_time_override->getLongValue() );
1388 globals->set_warp_delta( 0 );
1390 t->update( 0.0, 0.0,
1391 cur_time_override->getLongValue(),
1392 globals->get_warp() );
1398 // set up a time offset (aka warp) if one is specified
1399 void fgInitTimeOffset() {
1400 static const SGPropertyNode *longitude
1401 = fgGetNode("/position/longitude-deg");
1402 static const SGPropertyNode *latitude
1403 = fgGetNode("/position/latitude-deg");
1404 static const SGPropertyNode *cur_time_override
1405 = fgGetNode("/sim/time/cur-time-override", true);
1407 // Handle potential user specified time offsets
1408 int orig_warp = globals->get_warp();
1409 SGTime *t = globals->get_time_params();
1410 time_t cur_time = t->get_cur_time();
1411 time_t currGMT = sgTimeGetGMT( gmtime(&cur_time) );
1412 time_t systemLocalTime = sgTimeGetGMT( localtime(&cur_time) );
1413 time_t aircraftLocalTime =
1414 sgTimeGetGMT( fgLocaltime(&cur_time, t->get_zonename() ) );
1416 // Okay, we now have several possible scenarios
1417 int offset = fgGetInt("/sim/startup/time-offset");
1418 string offset_type = fgGetString("/sim/startup/time-offset-type");
1421 if ( offset_type == "real" ) {
1423 } else if ( offset_type == "dawn" ) {
1424 warp = fgTimeSecondsUntilSunAngle( cur_time,
1425 longitude->getDoubleValue()
1426 * SGD_DEGREES_TO_RADIANS,
1427 latitude->getDoubleValue()
1428 * SGD_DEGREES_TO_RADIANS,
1430 } else if ( offset_type == "morning" ) {
1431 warp = fgTimeSecondsUntilSunAngle( cur_time,
1432 longitude->getDoubleValue()
1433 * SGD_DEGREES_TO_RADIANS,
1434 latitude->getDoubleValue()
1435 * SGD_DEGREES_TO_RADIANS,
1437 } else if ( offset_type == "noon" ) {
1438 warp = fgTimeSecondsUntilSunAngle( cur_time,
1439 longitude->getDoubleValue()
1440 * SGD_DEGREES_TO_RADIANS,
1441 latitude->getDoubleValue()
1442 * SGD_DEGREES_TO_RADIANS,
1444 } else if ( offset_type == "afternoon" ) {
1445 warp = fgTimeSecondsUntilSunAngle( cur_time,
1446 longitude->getDoubleValue()
1447 * SGD_DEGREES_TO_RADIANS,
1448 latitude->getDoubleValue()
1449 * SGD_DEGREES_TO_RADIANS,
1451 } else if ( offset_type == "dusk" ) {
1452 warp = fgTimeSecondsUntilSunAngle( cur_time,
1453 longitude->getDoubleValue()
1454 * SGD_DEGREES_TO_RADIANS,
1455 latitude->getDoubleValue()
1456 * SGD_DEGREES_TO_RADIANS,
1458 } else if ( offset_type == "evening" ) {
1459 warp = fgTimeSecondsUntilSunAngle( cur_time,
1460 longitude->getDoubleValue()
1461 * SGD_DEGREES_TO_RADIANS,
1462 latitude->getDoubleValue()
1463 * SGD_DEGREES_TO_RADIANS,
1465 } else if ( offset_type == "midnight" ) {
1466 warp = fgTimeSecondsUntilSunAngle( cur_time,
1467 longitude->getDoubleValue()
1468 * SGD_DEGREES_TO_RADIANS,
1469 latitude->getDoubleValue()
1470 * SGD_DEGREES_TO_RADIANS,
1472 } else if ( offset_type == "system-offset" ) {
1475 } else if ( offset_type == "gmt-offset" ) {
1476 warp = offset - (currGMT - systemLocalTime);
1478 } else if ( offset_type == "latitude-offset" ) {
1479 warp = offset - (aircraftLocalTime - systemLocalTime);
1481 } else if ( offset_type == "system" ) {
1482 warp = offset - (systemLocalTime - currGMT) - cur_time;
1483 } else if ( offset_type == "gmt" ) {
1484 warp = offset - cur_time;
1485 } else if ( offset_type == "latitude" ) {
1486 warp = offset - (aircraftLocalTime - currGMT)- cur_time;
1488 SG_LOG( SG_GENERAL, SG_ALERT,
1489 "FG_TIME::Unsupported offset type " << offset_type );
1492 globals->set_warp( orig_warp + warp );
1493 t->update( longitude->getDoubleValue() * SGD_DEGREES_TO_RADIANS,
1494 latitude->getDoubleValue() * SGD_DEGREES_TO_RADIANS,
1495 cur_time_override->getLongValue(),
1496 globals->get_warp() );
1498 SG_LOG( SG_GENERAL, SG_INFO, "After fgInitTimeOffset(): warp = "
1499 << globals->get_warp() );
1503 // This is the top level init routine which calls all the other
1504 // initialization routines. If you are adding a subsystem to flight
1505 // gear, its initialization call should located in this routine.
1506 // Returns non-zero if a problem encountered.
1507 bool fgInitSubsystems() {
1508 // static const SGPropertyNode *longitude
1509 // = fgGetNode("/sim/presets/longitude-deg");
1510 // static const SGPropertyNode *latitude
1511 // = fgGetNode("/sim/presets/latitude-deg");
1512 // static const SGPropertyNode *altitude
1513 // = fgGetNode("/sim/presets/altitude-ft");
1514 SG_LOG( SG_GENERAL, SG_INFO, "Initialize Subsystems");
1515 SG_LOG( SG_GENERAL, SG_INFO, "========== ==========");
1517 ////////////////////////////////////////////////////////////////////
1518 // Initialize the event manager subsystem.
1519 ////////////////////////////////////////////////////////////////////
1521 globals->get_event_mgr()->init();
1522 globals->get_event_mgr()->setRealtimeProperty(fgGetNode("/sim/time/delta-realtime-sec", true));
1524 ////////////////////////////////////////////////////////////////////
1525 // Initialize the property interpolator subsystem
1526 ////////////////////////////////////////////////////////////////////
1527 globals->add_subsystem("interpolator", new SGInterpolator);
1530 ////////////////////////////////////////////////////////////////////
1531 // Add the FlightGear property utilities.
1532 ////////////////////////////////////////////////////////////////////
1533 globals->add_subsystem("properties", new FGProperties);
1535 ////////////////////////////////////////////////////////////////////
1536 // Initialize the material property subsystem.
1537 ////////////////////////////////////////////////////////////////////
1539 SGPath mpath( globals->get_fg_root() );
1540 mpath.append( "materials.xml" );
1541 string season = fgGetString("/sim/startup/season", "summer");
1542 if ( ! globals->get_matlib()->load(globals->get_fg_root(), mpath.str(), season.c_str()) ) {
1543 SG_LOG( SG_GENERAL, SG_ALERT, "Error loading material lib!" );
1548 ////////////////////////////////////////////////////////////////////
1549 // Initialize the scenery management subsystem.
1550 ////////////////////////////////////////////////////////////////////
1552 if ( globals->get_tile_mgr()->init() ) {
1553 // Load the local scenery data
1554 double visibility_meters = fgGetDouble("/environment/visibility-m");
1556 globals->get_tile_mgr()->update( visibility_meters );
1558 SG_LOG( SG_GENERAL, SG_ALERT, "Error in Tile Manager initialization!" );
1562 // cause refresh of viewer scenery timestamps every 15 seconds...
1563 globals->get_event_mgr()->addTask( "FGTileMgr::refresh_view_timestamps()",
1564 globals->get_tile_mgr(),
1565 &FGTileMgr::refresh_view_timestamps,
1569 ////////////////////////////////////////////////////////////////////
1570 // Initialize the flight model subsystem.
1571 ////////////////////////////////////////////////////////////////////
1575 // allocates structures so must happen before any of the flight
1576 // model or control parameters are set
1577 fgAircraftInit(); // In the future this might not be the case.
1579 ////////////////////////////////////////////////////////////////////
1580 // Initialize the aircraft systems and instrumentation (before the
1582 ////////////////////////////////////////////////////////////////////
1584 globals->add_subsystem("instrumentation", new FGInstrumentMgr);
1585 globals->add_subsystem("systems", new FGSystemMgr);
1587 ////////////////////////////////////////////////////////////////////
1588 // Initialize the XML Autopilot subsystem.
1589 ////////////////////////////////////////////////////////////////////
1591 globals->add_subsystem( "xml-autopilot", new FGXMLAutopilot );
1592 globals->add_subsystem( "route-manager", new FGRouteMgr );
1595 ////////////////////////////////////////////////////////////////////
1596 // Initialize the view manager subsystem.
1597 ////////////////////////////////////////////////////////////////////
1601 ////////////////////////////////////////////////////////////////////
1602 // Create and register the logger.
1603 ////////////////////////////////////////////////////////////////////
1605 globals->add_subsystem("logger", new FGLogger);
1607 ////////////////////////////////////////////////////////////////////
1608 // Create and register the XML GUI.
1609 ////////////////////////////////////////////////////////////////////
1611 globals->add_subsystem("gui", new NewGUI, SGSubsystemMgr::INIT);
1614 ////////////////////////////////////////////////////////////////////
1615 // Initialize the local time subsystem.
1616 ////////////////////////////////////////////////////////////////////
1618 // update the current timezone each 30 minutes
1619 globals->get_event_mgr()->addTask( "fgUpdateLocalTime()",
1620 &fgUpdateLocalTime, 30*60 );
1621 fgInitTimeOffset(); // the environment subsystem needs this
1624 ////////////////////////////////////////////////////////////////////
1625 // Initialize the weather subsystem.
1626 ////////////////////////////////////////////////////////////////////
1628 // Initialize the weather modeling subsystem
1629 globals->add_subsystem("environment", new FGEnvironmentMgr);
1632 ////////////////////////////////////////////////////////////////////
1633 // Initialize the lighting subsystem.
1634 ////////////////////////////////////////////////////////////////////
1636 globals->add_subsystem("lighting", new FGLight);
1638 //////////////////////////////////////////////////////////////////////
1639 // Initialize the 2D cloud subsystem.
1640 ////////////////////////////////////////////////////////////////////
1641 fgGetBool("/sim/rendering/bump-mapping", false);
1643 #ifdef ENABLE_AUDIO_SUPPORT
1644 ////////////////////////////////////////////////////////////////////
1645 // Initialize the sound subsystem.
1646 ////////////////////////////////////////////////////////////////////
1648 init_volume = fgGetFloat("/sim/sound/volume");
1649 fgSetFloat("/sim/sound/volume", 0.0f);
1650 globals->set_soundmgr(new SGSoundMgr);
1651 globals->get_soundmgr()->init();
1652 globals->get_soundmgr()->bind();
1655 ////////////////////////////////////////////////////////////////////
1656 // Initialize the sound-effects subsystem.
1657 ////////////////////////////////////////////////////////////////////
1659 globals->add_subsystem("fx", new FGFX);
1660 globals->add_subsystem("voice", new FGVoiceMgr);
1663 ////////////////////////////////////////////////////////////////////
1664 // Initialise ATC display system
1665 ////////////////////////////////////////////////////////////////////
1667 SG_LOG(SG_GENERAL, SG_INFO, " ATC Display");
1668 globals->set_ATC_display(new FGATCDisplay);
1669 globals->get_ATC_display()->init();
1671 ////////////////////////////////////////////////////////////////////
1672 // Initialise the ATC Manager
1673 ////////////////////////////////////////////////////////////////////
1675 SG_LOG(SG_GENERAL, SG_INFO, " ATC Manager");
1676 globals->set_ATC_mgr(new FGATCMgr);
1677 globals->get_ATC_mgr()->init();
1679 ////////////////////////////////////////////////////////////////////
1680 // Initialise the AI Manager
1681 ////////////////////////////////////////////////////////////////////
1683 SG_LOG(SG_GENERAL, SG_INFO, " AI Manager");
1684 globals->set_AI_mgr(new FGAIMgr);
1685 globals->get_AI_mgr()->init();
1687 ////////////////////////////////////////////////////////////////////
1688 // Initialise the AI Model Manager
1689 ////////////////////////////////////////////////////////////////////
1690 SG_LOG(SG_GENERAL, SG_INFO, " AI Model Manager");
1691 globals->add_subsystem("ai_model", new FGAIManager);
1692 globals->add_subsystem("submodel_mgr", new FGSubmodelMgr);
1695 // It's probably a good idea to initialize the top level traffic manager
1696 // After the AI and ATC systems have been initialized properly.
1697 // AI Traffic manager
1698 globals->add_subsystem("Traffic Manager", new FGTrafficManager);
1699 //FGTrafficManager *dispatcher =
1700 // (FGTrafficManager*) globals->get_subsystem("Traffic Manager");
1701 //SGPath path = globals->get_fg_root();
1702 //path.append("/Traffic/fgtraffic.xml");
1703 //readXML(path.str(),
1707 ////////////////////////////////////////////////////////////////////
1708 // Initialize the cockpit subsystem
1709 ////////////////////////////////////////////////////////////////////
1710 if( fgCockpitInit( ¤t_aircraft )) {
1711 // Cockpit initialized ok.
1713 SG_LOG( SG_GENERAL, SG_ALERT, "Error in Cockpit initialization!" );
1718 ////////////////////////////////////////////////////////////////////
1719 // Initialize I/O subsystem.
1720 ////////////////////////////////////////////////////////////////////
1722 globals->get_io()->init();
1723 globals->get_io()->bind();
1726 ////////////////////////////////////////////////////////////////////
1727 // Add a new 2D panel.
1728 ////////////////////////////////////////////////////////////////////
1730 string panel_path = fgGetString("/sim/panel/path",
1731 "Panels/Default/default.xml");
1733 globals->set_current_panel( fgReadPanel(panel_path) );
1734 if (globals->get_current_panel() == 0) {
1735 SG_LOG( SG_INPUT, SG_ALERT,
1736 "Error reading new panel from " << panel_path );
1738 SG_LOG( SG_INPUT, SG_INFO, "Loaded new panel from " << panel_path );
1739 globals->get_current_panel()->init();
1740 globals->get_current_panel()->bind();
1744 ////////////////////////////////////////////////////////////////////
1745 // Initialize the controls subsystem.
1746 ////////////////////////////////////////////////////////////////////
1748 globals->get_controls()->init();
1749 globals->get_controls()->bind();
1752 ////////////////////////////////////////////////////////////////////
1753 // Initialize the input subsystem.
1754 ////////////////////////////////////////////////////////////////////
1756 globals->add_subsystem("input", new FGInput);
1759 ////////////////////////////////////////////////////////////////////
1760 // Initialize the replay subsystem
1761 ////////////////////////////////////////////////////////////////////
1762 globals->add_subsystem("replay", new FGReplay);
1764 ////////////////////////////////////////////////////////////////////
1765 // Bind and initialize subsystems.
1766 ////////////////////////////////////////////////////////////////////
1768 globals->get_subsystem_mgr()->bind();
1769 globals->get_subsystem_mgr()->init();
1771 ////////////////////////////////////////////////////////////////////
1772 // Initialize multiplayer subsystem
1773 ////////////////////////////////////////////////////////////////////
1775 globals->set_multiplayer_mgr(new FGMultiplayMgr);
1776 globals->get_multiplayer_mgr()->init();
1778 ////////////////////////////////////////////////////////////////////////
1779 // Initialize the Nasal interpreter.
1780 // Do this last, so that the loaded scripts see initialized state
1781 ////////////////////////////////////////////////////////////////////////
1782 FGNasalSys* nasal = new FGNasalSys();
1783 globals->add_subsystem("nasal", nasal, SGSubsystemMgr::INIT);
1786 // initialize methods that depend on other subsystems.
1787 globals->get_subsystem_mgr()->postinit();
1789 ////////////////////////////////////////////////////////////////////////
1790 // End of subsystem initialization.
1791 ////////////////////////////////////////////////////////////////////
1793 SG_LOG( SG_GENERAL, SG_INFO, endl);
1795 // Save the initial state for future
1797 globals->saveInitialState();
1803 void fgReInitSubsystems()
1805 // static const SGPropertyNode *longitude
1806 // = fgGetNode("/sim/presets/longitude-deg");
1807 // static const SGPropertyNode *latitude
1808 // = fgGetNode("/sim/presets/latitude-deg");
1809 static const SGPropertyNode *altitude
1810 = fgGetNode("/sim/presets/altitude-ft");
1811 static const SGPropertyNode *master_freeze
1812 = fgGetNode("/sim/freeze/master");
1814 SG_LOG( SG_GENERAL, SG_INFO,
1815 "fgReInitSubsystems(): /position/altitude = "
1816 << altitude->getDoubleValue() );
1818 bool freeze = master_freeze->getBoolValue();
1820 fgSetBool("/sim/freeze/master", true);
1822 fgSetBool("/sim/crashed", false);
1824 // Force reupdating the positions of the ai 3d models. They are used for
1825 // initializing ground level for the FDM.
1826 globals->get_subsystem("ai_model")->reinit();
1828 // Initialize the FDM
1831 // allocates structures so must happen before any of the flight
1832 // model or control parameters are set
1833 fgAircraftInit(); // In the future this might not be the case.
1835 // reload offsets from config defaults
1836 globals->get_viewmgr()->reinit();
1840 globals->get_controls()->reset_all();
1842 fgUpdateLocalTime();
1844 // re-init to proper time of day setting
1848 fgSetBool("/sim/freeze/master", false);
1850 fgSetBool("/sim/sceneryloaded",false);