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, "No path in " << d_node->getPath() << "/strings.");
411 d_path.append(d_path_str);
412 SG_LOG(SG_GENERAL, SG_INFO, "Reading localized strings from " << d_path.str());
414 SGPropertyNode *strings = c_node->getNode("strings");
416 readProperties(d_path.str(), strings);
417 } catch (const sg_exception &e) {
418 SG_LOG(SG_GENERAL, SG_ALERT, "Unable to read the localized strings");
423 // Load the language specific strings
425 if (c_node != d_node) {
426 SGPath c_path( globals->get_fg_root() );
428 const char *c_path_str = c_node->getStringValue("strings");
430 SG_LOG(SG_GENERAL, SG_ALERT, "No path in " << c_node->getPath() << "/strings");
434 c_path.append(c_path_str);
435 SG_LOG(SG_GENERAL, SG_INFO, "Reading localized strings from " << c_path.str());
438 readProperties(c_path.str(), strings);
439 } catch (const sg_exception &e) {
440 SG_LOG(SG_GENERAL, SG_ALERT,
441 "Unable to read the localized strings from " << c_path.str());
451 // Initialize the localization routines
452 bool fgDetectLanguage() {
453 char *language = ::getenv("LANG");
455 if (language == NULL) {
456 SG_LOG(SG_GENERAL, SG_INFO, "Unable to detect the language" );
460 SGPropertyNode *locale = fgInitLocale(language);
462 SG_LOG(SG_GENERAL, SG_ALERT,
463 "No internationalization settings specified in preferences.xml" );
468 globals->set_locale( locale );
473 // Attempt to locate and parse the various non-XML config files in order
474 // from least precidence to greatest precidence
476 do_options (int argc, char ** argv)
478 // Check for $fg_root/system.fgfsrc
479 SGPath config( globals->get_fg_root() );
480 config.append( "system.fgfsrc" );
481 fgParseOptions(config.str());
483 #if defined( unix ) || defined( __CYGWIN__ )
484 config.concat( "." );
485 config.concat( hostname );
486 fgParseOptions(config.str());
489 // Check for ~/.fgfsrc
490 if ( homedir != NULL ) {
491 config.set( homedir );
492 config.append( ".fgfsrc" );
493 fgParseOptions(config.str());
496 #if defined( unix ) || defined( __CYGWIN__ )
497 // Check for ~/.fgfsrc.hostname
498 config.concat( "." );
499 config.concat( hostname );
500 fgParseOptions(config.str());
503 // Parse remaining command line options
504 // These will override anything specified in a config file
505 fgParseArgs(argc, argv);
509 static string fgFindAircraftPath( const SGPath &path, const string &aircraft,
510 SGPropertyNode *cache, int depth = 0 )
512 const int MAXDEPTH = 1;
515 ulDir *dirp = ulOpenDir(path.str().c_str());
517 cerr << "Unable to open aircraft directory '" << path.str() << '\'' << endl;
522 while ((dire = ulReadDir(dirp)) != NULL) {
524 if (depth > MAXDEPTH)
527 if (!strcmp("CVS", dire->d_name) || !strcmp(".", dire->d_name)
528 || !strcmp("..", dire->d_name) || !strcmp("AI", dire->d_name))
532 next.append(dire->d_name);
534 result = fgFindAircraftPath( next, aircraft, cache, depth + 1 );
535 if ( ! result.empty() )
539 int len = strlen(dire->d_name);
540 if (len < 9 || strcmp(dire->d_name + len - 8, "-set.xml"))
546 if (!cache->getChild("aircraft", i++, false))
549 SGPropertyNode *n, *entry = cache->getChild("aircraft", --i, true);
551 n = entry->getNode("file", true);
552 n->setStringValue(dire->d_name);
553 n->setAttribute(SGPropertyNode::USERARCHIVE, true);
555 n = entry->getNode("path", true);
556 n->setStringValue(path.str().c_str());
557 n->setAttribute(SGPropertyNode::USERARCHIVE, true);
559 if ( !strcmp(dire->d_name, aircraft.c_str()) ) {
571 // Read in configuration (file and command line)
572 bool fgInitConfig ( int argc, char **argv ) {
574 // First, set some sane default values
577 // Read global preferences from $FG_ROOT/preferences.xml
578 SG_LOG(SG_INPUT, SG_INFO, "Reading global preferences");
579 fgLoadProps("preferences.xml", globals->get_props());
580 SG_LOG(SG_INPUT, SG_INFO, "Finished Reading global preferences");
582 // Detect the required language as early as possible
583 if ( !fgDetectLanguage() ) {
587 SGPropertyNode autosave;
589 char *envp = ::getenv( "APPDATA" );
591 SGPath config( envp );
592 config.append( "flightgear.org" );
594 if ( homedir != NULL ) {
595 SGPath config( homedir );
596 config.append( ".fgfs" );
598 fgSetString("/sim/fg-home", config.c_str());
599 config.append( "autosave.xml" );
600 SG_LOG(SG_INPUT, SG_INFO, "Reading user settings from " << config.str());
602 readProperties(config.str(), &autosave, SGPropertyNode::USERARCHIVE);
604 SG_LOG(SG_INPUT, SG_DEBUG, "First time reading user settings");
606 SG_LOG(SG_INPUT, SG_DEBUG, "Finished Reading user settings");
608 SGPropertyNode *cache_root = autosave.getNode("sim/startup/path-cache", true);
611 // Scan user config files and command line for a specified aircraft.
612 fgInitFGAircraft(argc, argv);
614 string aircraft = fgGetString( "/sim/aircraft", "" );
615 if ( aircraft.size() > 0 ) {
616 SGPath aircraft_search( globals->get_fg_root() );
617 aircraft_search.append( "Aircraft" );
619 string aircraft_set = aircraft + "-set.xml";
622 // check if the *-set.xml file is already in the cache
623 if (globals->get_fg_root() == cache_root->getStringValue("fg-root", "")) {
624 vector<SGPropertyNode_ptr> cache = cache_root->getChildren("aircraft");
625 for (unsigned int i = 0; i < cache.size(); i++) {
626 const char *name = cache[i]->getStringValue("file", "");
627 if (aircraft_set == name) {
628 const char *path = cache[i]->getStringValue("path", "");
638 if (result.empty()) {
639 // prepare cache for rescan
640 SGPropertyNode *n = cache_root->getNode("fg-root", true);
641 n->setStringValue(globals->get_fg_root().c_str());
642 n->setAttribute(SGPropertyNode::USERARCHIVE, true);
643 cache_root->removeChildren("aircraft");
645 result = fgFindAircraftPath( aircraft_search, aircraft_set, cache_root );
648 if ( !result.empty() ) {
649 fgSetString( "/sim/aircraft-dir", result.c_str() );
650 SGPath full_name( result );
651 full_name.append( aircraft_set );
653 SG_LOG(SG_INPUT, SG_INFO, "Reading default aircraft: " << aircraft
654 << " from " << full_name.str());
656 readProperties( full_name.str(), globals->get_props() );
657 } catch ( const sg_exception &e ) {
658 string message = "Error reading default aircraft: ";
659 message += e.getFormattedMessage();
660 SG_LOG(SG_INPUT, SG_ALERT, message);
664 SG_LOG( SG_INPUT, SG_ALERT, "Cannot find specified aircraft: "
670 SG_LOG( SG_INPUT, SG_ALERT, "No default aircraft specified" );
673 copyProperties(&autosave, globals->get_props());
675 // parse options after loading aircraft to ensure any user
676 // overrides of defaults are honored.
677 do_options(argc, argv);
688 // This function is never used, but maybe useful in the future ???
691 // Preset lon/lat given an airport id
692 static bool fgSetPosFromAirportID( const string& id ) {
696 SG_LOG( SG_GENERAL, SG_INFO,
697 "Attempting to set starting position from airport code " << id );
699 if ( fgFindAirportID( id, &a ) ) {
701 fgSetDouble("/sim/presets/longitude-deg", a->longitude );
702 fgSetDouble("/sim/presets/latitude-deg", a->latitude );
704 // other code depends on the actual postition being set so set
706 fgSetDouble("/position/longitude-deg", a->longitude );
707 fgSetDouble("/position/latitude-deg", a->latitude );
709 SG_LOG( SG_GENERAL, SG_INFO,
710 "Position for " << id << " is (" << a->longitude
711 << ", " << a->latitude << ")" );
721 // Set current tower position lon/lat given an airport id
722 static bool fgSetTowerPosFromAirportID( const string& id, double hdg ) {
724 // tower height hard coded for now...
725 float towerheight=50.0f;
727 // make a little off the heading for 1 runway airports...
728 float fudge_lon = fabs(sin(hdg)) * .003f;
729 float fudge_lat = .003f - fudge_lon;
731 const FGAirport *a = fgFindAirportID( id);
733 fgSetDouble("/sim/tower/longitude-deg", a->getLongitude() + fudge_lon);
734 fgSetDouble("/sim/tower/latitude-deg", a->getLatitude() + fudge_lat);
735 fgSetDouble("/sim/tower/altitude-ft", a->getElevation() + towerheight);
743 struct FGTowerLocationListener : SGPropertyChangeListener {
744 void valueChanged(SGPropertyNode* node) {
745 const double hdg = fgGetDouble( "/orientation/heading-deg", 0);
746 const string id(node->getStringValue());
747 fgSetTowerPosFromAirportID(id, hdg);
751 void fgInitTowerLocationListener() {
752 fgGetNode("/sim/tower/airport-id", true)
753 ->addChangeListener( new FGTowerLocationListener(), true );
756 // Set current_options lon/lat given an airport id and heading (degrees)
757 static bool fgSetPosFromAirportIDandHdg( const string& id, double tgt_hdg ) {
761 // set initial position from runway and heading
763 SG_LOG( SG_GENERAL, SG_INFO,
764 "Attempting to set starting position from airport code "
765 << id << " heading " << tgt_hdg );
767 if ( ! globals->get_runways()->search( id, (int)tgt_hdg, &r ) ) {
768 SG_LOG( SG_GENERAL, SG_ALERT,
769 "Failed to find a good runway for " << id << '\n' );
776 double lat2, lon2, az2;
777 double heading = r._heading;
778 double azimuth = heading + 180.0;
779 while ( azimuth >= 360.0 ) { azimuth -= 360.0; }
781 SG_LOG( SG_GENERAL, SG_INFO,
782 "runway = " << r._lon << ", " << r._lat
783 << " length = " << r._length * SG_FEET_TO_METER
784 << " heading = " << azimuth );
786 geo_direct_wgs_84 ( 0, r._lat, r._lon, azimuth,
787 r._length * SG_FEET_TO_METER * 0.5 - 5.0,
788 &lat2, &lon2, &az2 );
790 if ( fabs( fgGetDouble("/sim/presets/offset-distance") ) > SG_EPSILON ) {
792 double odist = fgGetDouble("/sim/presets/offset-distance");
793 odist *= SG_NM_TO_METER;
794 double oaz = azimuth;
795 if ( fabs(fgGetDouble("/sim/presets/offset-azimuth")) > SG_EPSILON ) {
796 oaz = fgGetDouble("/sim/presets/offset-azimuth") + 180;
799 while ( oaz >= 360.0 ) { oaz -= 360.0; }
800 geo_direct_wgs_84 ( 0, lat2, lon2, oaz, odist, &olat, &olon, &az2 );
806 fgSetDouble("/sim/presets/longitude-deg", lon2 );
807 fgSetDouble("/sim/presets/latitude-deg", lat2 );
808 fgSetDouble("/sim/presets/heading-deg", heading );
810 // other code depends on the actual values being set ...
811 fgSetDouble("/position/longitude-deg", lon2 );
812 fgSetDouble("/position/latitude-deg", lat2 );
813 fgSetDouble("/orientation/heading-deg", heading );
815 SG_LOG( SG_GENERAL, SG_INFO,
816 "Position for " << id << " is ("
818 << lat2 << ") new heading is "
825 // Set current_options lon/lat given an airport id and runway number
826 static bool fgSetPosFromAirportIDandRwy( const string& id, const string& rwy, bool rwy_req ) {
830 // set initial position from airport and runway number
832 SG_LOG( SG_GENERAL, SG_INFO,
833 "Attempting to set starting position for "
834 << id << ":" << rwy );
836 if ( ! globals->get_runways()->search( id, rwy, &r ) ) {
837 SG_LOG( SG_GENERAL, rwy_req ? SG_ALERT : SG_INFO,
838 "Failed to find runway " << rwy <<
839 " at airport " << id << ". Using default runway." );
846 double lat2, lon2, az2;
847 double heading = r._heading;
848 double azimuth = heading + 180.0;
849 while ( azimuth >= 360.0 ) { azimuth -= 360.0; }
851 SG_LOG( SG_GENERAL, SG_INFO,
852 "runway = " << r._lon << ", " << r._lat
853 << " length = " << r._length * SG_FEET_TO_METER
854 << " heading = " << azimuth );
856 geo_direct_wgs_84 ( 0, r._lat, r._lon,
858 r._length * SG_FEET_TO_METER * 0.5 - 5.0,
859 &lat2, &lon2, &az2 );
861 if ( fabs( fgGetDouble("/sim/presets/offset-distance") ) > SG_EPSILON )
864 double odist = fgGetDouble("/sim/presets/offset-distance");
865 odist *= SG_NM_TO_METER;
866 double oaz = azimuth;
867 if ( fabs(fgGetDouble("/sim/presets/offset-azimuth")) > SG_EPSILON )
869 oaz = fgGetDouble("/sim/presets/offset-azimuth") + 180;
870 heading = fgGetDouble("/sim/presets/heading-deg");
872 while ( oaz >= 360.0 ) { oaz -= 360.0; }
873 geo_direct_wgs_84 ( 0, lat2, lon2, oaz, odist, &olat, &olon, &az2 );
879 fgSetDouble("/sim/presets/longitude-deg", lon2 );
880 fgSetDouble("/sim/presets/latitude-deg", lat2 );
881 fgSetDouble("/sim/presets/heading-deg", heading );
883 // other code depends on the actual values being set ...
884 fgSetDouble("/position/longitude-deg", lon2 );
885 fgSetDouble("/position/latitude-deg", lat2 );
886 fgSetDouble("/orientation/heading-deg", heading );
888 SG_LOG( SG_GENERAL, SG_INFO,
889 "Position for " << id << " is ("
891 << lat2 << ") new heading is "
898 static void fgSetDistOrAltFromGlideSlope() {
899 // cout << "fgSetDistOrAltFromGlideSlope()" << endl;
900 string apt_id = fgGetString("/sim/presets/airport-id");
901 double gs = fgGetDouble("/sim/presets/glideslope-deg")
902 * SG_DEGREES_TO_RADIANS ;
903 double od = fgGetDouble("/sim/presets/offset-distance");
904 double alt = fgGetDouble("/sim/presets/altitude-ft");
906 double apt_elev = 0.0;
907 if ( ! apt_id.empty() ) {
908 apt_elev = fgGetAirportElev( apt_id );
909 if ( apt_elev < -9990.0 ) {
916 if( fabs(gs) > 0.01 && fabs(od) > 0.1 && alt < -9990 ) {
917 // set altitude from glideslope and offset-distance
918 od *= SG_NM_TO_METER * SG_METER_TO_FEET;
919 alt = fabs(od*tan(gs)) + apt_elev;
920 fgSetDouble("/sim/presets/altitude-ft", alt);
921 fgSetBool("/sim/presets/onground", false);
922 SG_LOG( SG_GENERAL, SG_INFO, "Calculated altitude as: "
924 } else if( fabs(gs) > 0.01 && alt > 0 && fabs(od) < 0.1) {
925 // set offset-distance from glideslope and altitude
926 od = (alt - apt_elev) / tan(gs);
927 od *= -1*SG_FEET_TO_METER * SG_METER_TO_NM;
928 fgSetDouble("/sim/presets/offset-distance", od);
929 fgSetBool("/sim/presets/onground", false);
930 SG_LOG( SG_GENERAL, SG_INFO, "Calculated offset distance as: "
932 } else if( fabs(gs) > 0.01 ) {
933 SG_LOG( SG_GENERAL, SG_ALERT,
934 "Glideslope given but not altitude or offset-distance." );
935 SG_LOG( SG_GENERAL, SG_ALERT, "Resetting glideslope to zero" );
936 fgSetDouble("/sim/presets/glideslope-deg", 0);
937 fgSetBool("/sim/presets/onground", true);
942 // Set current_options lon/lat given an airport id and heading (degrees)
943 static bool fgSetPosFromNAV( const string& id, const double& freq ) {
945 = globals->get_navlist()->findByIdentAndFreq( id.c_str(), freq );
947 // set initial position from runway and heading
949 SG_LOG( SG_GENERAL, SG_INFO, "Attempting to set starting position for "
950 << id << ":" << freq );
952 double lon = nav->get_lon();
953 double lat = nav->get_lat();
955 if ( fabs( fgGetDouble("/sim/presets/offset-distance") ) > SG_EPSILON )
957 double odist = fgGetDouble("/sim/presets/offset-distance")
959 double oaz = fabs(fgGetDouble("/sim/presets/offset-azimuth"))
961 while ( oaz >= 360.0 ) { oaz -= 360.0; }
962 double olat, olon, az2;
963 geo_direct_wgs_84 ( 0, lat, lon, oaz, odist, &olat, &olon, &az2 );
970 fgSetDouble("/sim/presets/longitude-deg", lon );
971 fgSetDouble("/sim/presets/latitude-deg", lat );
973 // other code depends on the actual values being set ...
974 fgSetDouble("/position/longitude-deg", lon );
975 fgSetDouble("/position/latitude-deg", lat );
976 fgSetDouble("/orientation/heading-deg",
977 fgGetDouble("/sim/presets/heading-deg") );
979 SG_LOG( SG_GENERAL, SG_INFO,
980 "Position for " << id << ":" << freq << " is ("
981 << lon << ", "<< lat << ")" );
985 SG_LOG( SG_GENERAL, SG_ALERT, "Failed to locate NAV = "
986 << id << ":" << freq );
991 // Set current_options lon/lat given an aircraft carrier id
992 static bool fgSetPosFromCarrier( const string& carrier, const string& posid ) {
994 // set initial position from runway and heading
998 if (FGAIManager::getStartPosition(carrier, posid, geodPos, heading, uvw)) {
999 double lon = geodPos.getLongitudeDeg();
1000 double lat = geodPos.getLatitudeDeg();
1001 double alt = geodPos.getElevationFt();
1003 SG_LOG( SG_GENERAL, SG_INFO, "Attempting to set starting position for "
1004 << carrier << " at lat = " << lat << ", lon = " << lon
1005 << ", alt = " << alt << ", heading = " << heading);
1007 fgSetDouble("/sim/presets/longitude-deg", lon);
1008 fgSetDouble("/sim/presets/latitude-deg", lat);
1009 fgSetDouble("/sim/presets/altitude-ft", alt);
1010 fgSetDouble("/sim/presets/heading-deg", heading);
1011 fgSetDouble("/position/longitude-deg", lon);
1012 fgSetDouble("/position/latitude-deg", lat);
1013 fgSetDouble("/position/altitude-ft", alt);
1014 fgSetDouble("/orientation/heading-deg", heading);
1016 fgSetString("/sim/presets/speed-set", "UVW");
1017 fgSetDouble("/velocities/uBody-fps", uvw(0));
1018 fgSetDouble("/velocities/vBody-fps", uvw(1));
1019 fgSetDouble("/velocities/wBody-fps", uvw(2));
1020 fgSetDouble("/sim/presets/uBody-fps", uvw(0));
1021 fgSetDouble("/sim/presets/vBody-fps", uvw(1));
1022 fgSetDouble("/sim/presets/wBody-fps", uvw(2));
1024 fgSetBool("/sim/presets/onground", true);
1028 SG_LOG( SG_GENERAL, SG_ALERT, "Failed to locate aircraft carrier = "
1034 // Set current_options lon/lat given an airport id and heading (degrees)
1035 static bool fgSetPosFromFix( const string& id ) {
1038 // set initial position from runway and heading
1039 if ( globals->get_fixlist()->query( id.c_str(), &fix ) ) {
1040 SG_LOG( SG_GENERAL, SG_INFO, "Attempting to set starting position for "
1043 double lon = fix.get_lon();
1044 double lat = fix.get_lat();
1046 if ( fabs( fgGetDouble("/sim/presets/offset-distance") ) > SG_EPSILON )
1048 double odist = fgGetDouble("/sim/presets/offset-distance")
1050 double oaz = fabs(fgGetDouble("/sim/presets/offset-azimuth"))
1052 while ( oaz >= 360.0 ) { oaz -= 360.0; }
1053 double olat, olon, az2;
1054 geo_direct_wgs_84 ( 0, lat, lon, oaz, odist, &olat, &olon, &az2 );
1061 fgSetDouble("/sim/presets/longitude-deg", lon );
1062 fgSetDouble("/sim/presets/latitude-deg", lat );
1064 // other code depends on the actual values being set ...
1065 fgSetDouble("/position/longitude-deg", lon );
1066 fgSetDouble("/position/latitude-deg", lat );
1067 fgSetDouble("/orientation/heading-deg",
1068 fgGetDouble("/sim/presets/heading-deg") );
1070 SG_LOG( SG_GENERAL, SG_INFO,
1071 "Position for " << id << " is ("
1072 << lon << ", "<< lat << ")" );
1076 SG_LOG( SG_GENERAL, SG_ALERT, "Failed to locate NAV = "
1084 * Initialize vor/ndb/ils/fix list management and query systems (as
1085 * well as simple airport db list)
1090 SG_LOG(SG_GENERAL, SG_INFO, "Loading Airport Database ...");
1092 SGPath aptdb( globals->get_fg_root() );
1093 aptdb.append( "Airports/apt.dat" );
1095 SGPath p_metar( globals->get_fg_root() );
1096 p_metar.append( "Airports/metar.dat" );
1098 FGAirportList *airports = new FGAirportList();
1099 globals->set_airports( airports );
1100 FGRunwayList *runways = new FGRunwayList();
1101 globals->set_runways( runways );
1103 fgAirportDBLoad( airports, runways, aptdb.str(), p_metar.str() );
1105 FGNavList *navlist = new FGNavList;
1106 FGNavList *loclist = new FGNavList;
1107 FGNavList *gslist = new FGNavList;
1108 FGNavList *dmelist = new FGNavList;
1109 FGNavList *mkrlist = new FGNavList;
1110 FGNavList *tacanlist = new FGNavList;
1111 FGNavList *carrierlist = new FGNavList;
1112 FGTACANList *channellist = new FGTACANList;
1114 globals->set_navlist( navlist );
1115 globals->set_loclist( loclist );
1116 globals->set_gslist( gslist );
1117 globals->set_dmelist( dmelist );
1118 globals->set_mkrlist( mkrlist );
1119 globals->set_tacanlist( tacanlist );
1120 globals->set_carrierlist( carrierlist );
1121 globals->set_channellist( channellist );
1123 if ( !fgNavDBInit(airports, navlist, loclist, gslist, dmelist, mkrlist, tacanlist, carrierlist, channellist) ) {
1124 SG_LOG( SG_GENERAL, SG_ALERT,
1125 "Problems loading one or more navigational database" );
1128 if ( fgGetBool("/sim/navdb/localizers/auto-align", true) ) {
1129 // align all the localizers with their corresponding runways
1130 // since data sources are good for cockpit navigation
1131 // purposes, but not always to the error tolerances needed to
1132 // exactly place these items.
1134 = fgGetDouble( "/sim/navdb/localizers/auto-align-threshold-deg",
1136 fgNavDBAlignLOCwithRunway( runways, loclist, threshold );
1139 SG_LOG(SG_GENERAL, SG_INFO, " Fixes");
1140 SGPath p_fix( globals->get_fg_root() );
1141 p_fix.append( "Navaids/fix.dat" );
1142 FGFixList *fixlist = new FGFixList;
1143 fixlist->init( p_fix );
1144 globals->set_fixlist( fixlist );
1146 SG_LOG(SG_GENERAL, SG_INFO, " Airways");
1147 SGPath p_awy( globals->get_fg_root() );
1148 p_awy.append( "Navaids/awy.dat" );
1149 FGAirwayNetwork *awyNet = new FGAirwayNetwork;
1150 //cerr << "Loading Airways" << endl;
1151 awyNet->load (p_awy );
1153 //cerr << "initializing airways" << endl;
1154 globals->set_airwaynet( awyNet );
1160 // Set the initial position based on presets (or defaults)
1161 bool fgInitPosition() {
1162 // cout << "fgInitPosition()" << endl;
1163 double gs = fgGetDouble("/sim/presets/glideslope-deg")
1164 * SG_DEGREES_TO_RADIANS ;
1165 double od = fgGetDouble("/sim/presets/offset-distance");
1166 double alt = fgGetDouble("/sim/presets/altitude-ft");
1168 bool set_pos = false;
1170 // If glideslope is specified, then calculate offset-distance or
1171 // altitude relative to glide slope if either of those was not
1173 if ( fabs( gs ) > 0.01 ) {
1174 fgSetDistOrAltFromGlideSlope();
1178 // If we have an explicit, in-range lon/lat, don't change it, just use it.
1179 // If not, check for an airport-id and use that.
1180 // If not, default to the middle of the KSFO field.
1181 // The default values for lon/lat are deliberately out of range
1182 // so that the airport-id can take effect; valid lon/lat will
1183 // override airport-id, however.
1184 double lon_deg = fgGetDouble("/sim/presets/longitude-deg");
1185 double lat_deg = fgGetDouble("/sim/presets/latitude-deg");
1186 if ( lon_deg >= -180.0 && lon_deg <= 180.0
1187 && lat_deg >= -90.0 && lat_deg <= 90.0 )
1192 string apt = fgGetString("/sim/presets/airport-id");
1193 string rwy_no = fgGetString("/sim/presets/runway");
1194 bool rwy_req = fgGetBool("/sim/presets/runway-requested");
1195 double hdg = fgGetDouble("/sim/presets/heading-deg");
1196 string vor = fgGetString("/sim/presets/vor-id");
1197 double vor_freq = fgGetDouble("/sim/presets/vor-freq");
1198 string ndb = fgGetString("/sim/presets/ndb-id");
1199 double ndb_freq = fgGetDouble("/sim/presets/ndb-freq");
1200 string carrier = fgGetString("/sim/presets/carrier");
1201 string parkpos = fgGetString("/sim/presets/parkpos");
1202 string fix = fgGetString("/sim/presets/fix");
1204 fgSetDouble( "/orientation/heading-deg", hdg );
1206 if ( !set_pos && !apt.empty() && !rwy_no.empty() ) {
1207 // An airport + runway is requested
1208 if ( fgSetPosFromAirportIDandRwy( apt, rwy_no, rwy_req ) ) {
1209 // set tower position (a little off the heading for single
1211 fgSetString("/sim/tower/airport-id", apt.c_str());
1216 if ( !set_pos && !apt.empty() ) {
1217 // An airport is requested (find runway closest to hdg)
1218 if ( fgSetPosFromAirportIDandHdg( apt, hdg ) ) {
1219 // set tower position (a little off the heading for single
1221 fgSetString("/sim/tower/airport-id", apt.c_str());
1226 if ( !set_pos && !vor.empty() ) {
1227 // a VOR is requested
1228 if ( fgSetPosFromNAV( vor, vor_freq ) ) {
1233 if ( !set_pos && !ndb.empty() ) {
1234 // an NDB is requested
1235 if ( fgSetPosFromNAV( ndb, ndb_freq ) ) {
1240 if ( !set_pos && !carrier.empty() ) {
1241 // an aircraft carrier is requested
1242 if ( fgSetPosFromCarrier( carrier, parkpos ) ) {
1247 if ( !set_pos && !fix.empty() ) {
1248 // a Fix is requested
1249 if ( fgSetPosFromFix( fix ) ) {
1255 // No lon/lat specified, no airport specified, default to
1256 // middle of KSFO field.
1257 fgSetDouble("/sim/presets/longitude-deg", -122.374843);
1258 fgSetDouble("/sim/presets/latitude-deg", 37.619002);
1261 fgSetDouble( "/position/longitude-deg",
1262 fgGetDouble("/sim/presets/longitude-deg") );
1263 fgSetDouble( "/position/latitude-deg",
1264 fgGetDouble("/sim/presets/latitude-deg") );
1266 // determine if this should be an on-ground or in-air start
1267 if ((fabs(gs) > 0.01 || fabs(od) > 0.1 || alt > 0.1) && carrier.empty()) {
1268 fgSetBool("/sim/presets/onground", false);
1270 fgSetBool("/sim/presets/onground", true);
1277 // General house keeping initializations
1278 bool fgInitGeneral() {
1281 #if defined(FX) && defined(XMESA)
1282 char *mesa_win_state;
1285 SG_LOG( SG_GENERAL, SG_INFO, "General Initialization" );
1286 SG_LOG( SG_GENERAL, SG_INFO, "======= ==============" );
1288 root = globals->get_fg_root();
1289 if ( ! root.length() ) {
1290 // No root path set? Then bail ...
1291 SG_LOG( SG_GENERAL, SG_ALERT,
1292 "Cannot continue without a path to the base package "
1293 << "being defined." );
1296 SG_LOG( SG_GENERAL, SG_INFO, "FG_ROOT = " << '"' << root << '"' << endl );
1298 #if defined(FX) && defined(XMESA)
1299 // initialize full screen flag
1300 globals->set_fullscreen(false);
1301 if ( strstr ( general.get_glRenderer(), "Glide" ) ) {
1302 // Test for the MESA_GLX_FX env variable
1303 if ( (mesa_win_state = getenv( "MESA_GLX_FX" )) != NULL) {
1304 // test if we are fullscreen mesa/glide
1305 if ( (mesa_win_state[0] == 'f') ||
1306 (mesa_win_state[0] == 'F') ) {
1307 globals->set_fullscreen(true);
1317 // Initialize the flight model subsystem. This just creates the
1318 // object. The actual fdm initialization is delayed until we get a
1319 // proper scenery elevation hit. This is checked for in main.cxx
1323 if ( cur_fdm_state ) {
1324 delete cur_fdm_state;
1328 double dt = 1.0 / fgGetInt("/sim/model-hz");
1329 string model = fgGetString("/sim/flight-model");
1332 if ( model == "larcsim" ) {
1333 cur_fdm_state = new FGLaRCsim( dt );
1334 } else if ( model == "jsb" ) {
1335 cur_fdm_state = new FGJSBsim( dt );
1337 } else if ( model == "ada" ) {
1338 cur_fdm_state = new FGADA( dt );
1339 } else if ( model == "acms" ) {
1340 cur_fdm_state = new FGACMS( dt );
1342 } else if ( model == "balloon" ) {
1343 cur_fdm_state = new FGBalloonSim( dt );
1344 } else if ( model == "magic" ) {
1345 cur_fdm_state = new FGMagicCarpet( dt );
1346 } else if ( model == "ufo" ) {
1347 cur_fdm_state = new FGUFO( dt );
1348 } else if ( model == "external" ) {
1349 // external is a synonym for "--fdm=null" and is
1350 // maintained here for backwards compatibility
1351 cur_fdm_state = new FGNullFDM( dt );
1352 } else if ( model.find("network") == 0 ) {
1353 string host = "localhost";
1357 string net_options = model.substr(8);
1358 string::size_type begin, end;
1361 end = net_options.find( ",", begin );
1362 if ( end != string::npos ) {
1363 host = net_options.substr(begin, end - begin);
1367 end = net_options.find( ",", begin );
1368 if ( end != string::npos ) {
1369 port1 = atoi( net_options.substr(begin, end - begin).c_str() );
1373 end = net_options.find( ",", begin );
1374 if ( end != string::npos ) {
1375 port2 = atoi( net_options.substr(begin, end - begin).c_str() );
1379 end = net_options.find( ",", begin );
1380 if ( end != string::npos ) {
1381 port3 = atoi( net_options.substr(begin, end - begin).c_str() );
1384 cur_fdm_state = new FGExternalNet( dt, host, port1, port2, port3 );
1385 } else if ( model.find("pipe") == 0 ) {
1386 // /* old */ string pipe_path = model.substr(5);
1387 // /* old */ cur_fdm_state = new FGExternalPipe( dt, pipe_path );
1388 string pipe_path = "";
1389 string pipe_protocol = "";
1390 string pipe_options = model.substr(5);
1391 string::size_type begin, end;
1394 end = pipe_options.find( ",", begin );
1395 if ( end != string::npos ) {
1396 pipe_path = pipe_options.substr(begin, end - begin);
1399 // protocol (last option)
1400 pipe_protocol = pipe_options.substr(begin);
1401 cur_fdm_state = new FGExternalPipe( dt, pipe_path, pipe_protocol );
1402 } else if ( model == "null" ) {
1403 cur_fdm_state = new FGNullFDM( dt );
1404 } else if ( model == "yasim" ) {
1405 cur_fdm_state = new YASim( dt );
1407 SG_LOG(SG_GENERAL, SG_ALERT,
1408 "Unrecognized flight model '" << model
1409 << "', cannot init flight dynamics model.");
1413 SG_LOG(SG_GENERAL, SG_ALERT, "FlightGear aborting\n\n");
1418 // Initialize view parameters
1420 // force update of model so that viewer can get some data...
1421 globals->get_aircraft_model()->update(0);
1422 // run update for current view so that data is current...
1423 globals->get_viewmgr()->update(0);
1427 SGTime *fgInitTime() {
1429 static const SGPropertyNode *longitude
1430 = fgGetNode("/position/longitude-deg");
1431 static const SGPropertyNode *latitude
1432 = fgGetNode("/position/latitude-deg");
1433 static const SGPropertyNode *cur_time_override
1434 = fgGetNode("/sim/time/cur-time-override", true);
1436 SGPath zone( globals->get_fg_root() );
1437 zone.append( "Timezone" );
1438 SGTime *t = new SGTime( longitude->getDoubleValue()
1439 * SGD_DEGREES_TO_RADIANS,
1440 latitude->getDoubleValue()
1441 * SGD_DEGREES_TO_RADIANS,
1443 cur_time_override->getLongValue() );
1445 globals->set_warp_delta( 0 );
1447 t->update( 0.0, 0.0,
1448 cur_time_override->getLongValue(),
1449 globals->get_warp() );
1455 // set up a time offset (aka warp) if one is specified
1456 void fgInitTimeOffset() {
1457 static const SGPropertyNode *longitude
1458 = fgGetNode("/position/longitude-deg");
1459 static const SGPropertyNode *latitude
1460 = fgGetNode("/position/latitude-deg");
1461 static const SGPropertyNode *cur_time_override
1462 = fgGetNode("/sim/time/cur-time-override", true);
1464 // Handle potential user specified time offsets
1465 int orig_warp = globals->get_warp();
1466 SGTime *t = globals->get_time_params();
1467 time_t cur_time = t->get_cur_time();
1468 time_t currGMT = sgTimeGetGMT( gmtime(&cur_time) );
1469 time_t systemLocalTime = sgTimeGetGMT( localtime(&cur_time) );
1470 time_t aircraftLocalTime =
1471 sgTimeGetGMT( fgLocaltime(&cur_time, t->get_zonename() ) );
1473 // Okay, we now have several possible scenarios
1474 int offset = fgGetInt("/sim/startup/time-offset");
1475 string offset_type = fgGetString("/sim/startup/time-offset-type");
1478 if ( offset_type == "real" ) {
1480 } else if ( offset_type == "dawn" ) {
1481 warp = fgTimeSecondsUntilSunAngle( cur_time,
1482 longitude->getDoubleValue()
1483 * SGD_DEGREES_TO_RADIANS,
1484 latitude->getDoubleValue()
1485 * SGD_DEGREES_TO_RADIANS,
1487 } else if ( offset_type == "morning" ) {
1488 warp = fgTimeSecondsUntilSunAngle( cur_time,
1489 longitude->getDoubleValue()
1490 * SGD_DEGREES_TO_RADIANS,
1491 latitude->getDoubleValue()
1492 * SGD_DEGREES_TO_RADIANS,
1494 } else if ( offset_type == "noon" ) {
1495 warp = fgTimeSecondsUntilSunAngle( cur_time,
1496 longitude->getDoubleValue()
1497 * SGD_DEGREES_TO_RADIANS,
1498 latitude->getDoubleValue()
1499 * SGD_DEGREES_TO_RADIANS,
1501 } else if ( offset_type == "afternoon" ) {
1502 warp = fgTimeSecondsUntilSunAngle( cur_time,
1503 longitude->getDoubleValue()
1504 * SGD_DEGREES_TO_RADIANS,
1505 latitude->getDoubleValue()
1506 * SGD_DEGREES_TO_RADIANS,
1508 } else if ( offset_type == "dusk" ) {
1509 warp = fgTimeSecondsUntilSunAngle( cur_time,
1510 longitude->getDoubleValue()
1511 * SGD_DEGREES_TO_RADIANS,
1512 latitude->getDoubleValue()
1513 * SGD_DEGREES_TO_RADIANS,
1515 } else if ( offset_type == "evening" ) {
1516 warp = fgTimeSecondsUntilSunAngle( cur_time,
1517 longitude->getDoubleValue()
1518 * SGD_DEGREES_TO_RADIANS,
1519 latitude->getDoubleValue()
1520 * SGD_DEGREES_TO_RADIANS,
1522 } else if ( offset_type == "midnight" ) {
1523 warp = fgTimeSecondsUntilSunAngle( cur_time,
1524 longitude->getDoubleValue()
1525 * SGD_DEGREES_TO_RADIANS,
1526 latitude->getDoubleValue()
1527 * SGD_DEGREES_TO_RADIANS,
1529 } else if ( offset_type == "system-offset" ) {
1532 } else if ( offset_type == "gmt-offset" ) {
1533 warp = offset - (currGMT - systemLocalTime);
1535 } else if ( offset_type == "latitude-offset" ) {
1536 warp = offset - (aircraftLocalTime - systemLocalTime);
1538 } else if ( offset_type == "system" ) {
1539 warp = offset - (systemLocalTime - currGMT) - cur_time;
1540 } else if ( offset_type == "gmt" ) {
1541 warp = offset - cur_time;
1542 } else if ( offset_type == "latitude" ) {
1543 warp = offset - (aircraftLocalTime - currGMT)- cur_time;
1545 SG_LOG( SG_GENERAL, SG_ALERT,
1546 "FG_TIME::Unsupported offset type " << offset_type );
1549 globals->set_warp( orig_warp + warp );
1550 t->update( longitude->getDoubleValue() * SGD_DEGREES_TO_RADIANS,
1551 latitude->getDoubleValue() * SGD_DEGREES_TO_RADIANS,
1552 cur_time_override->getLongValue(),
1553 globals->get_warp() );
1555 SG_LOG( SG_GENERAL, SG_INFO, "After fgInitTimeOffset(): warp = "
1556 << globals->get_warp() );
1560 // This is the top level init routine which calls all the other
1561 // initialization routines. If you are adding a subsystem to flight
1562 // gear, its initialization call should located in this routine.
1563 // Returns non-zero if a problem encountered.
1564 bool fgInitSubsystems() {
1565 // static const SGPropertyNode *longitude
1566 // = fgGetNode("/sim/presets/longitude-deg");
1567 // static const SGPropertyNode *latitude
1568 // = fgGetNode("/sim/presets/latitude-deg");
1569 // static const SGPropertyNode *altitude
1570 // = fgGetNode("/sim/presets/altitude-ft");
1571 SG_LOG( SG_GENERAL, SG_INFO, "Initialize Subsystems");
1572 SG_LOG( SG_GENERAL, SG_INFO, "========== ==========");
1574 ////////////////////////////////////////////////////////////////////
1575 // Initialize the event manager subsystem.
1576 ////////////////////////////////////////////////////////////////////
1578 globals->get_event_mgr()->init();
1579 globals->get_event_mgr()->setRealtimeProperty(fgGetNode("/sim/time/delta-realtime-sec", true));
1581 ////////////////////////////////////////////////////////////////////
1582 // Initialize the property interpolator subsystem
1583 ////////////////////////////////////////////////////////////////////
1584 globals->add_subsystem("interpolator", new SGInterpolator);
1587 ////////////////////////////////////////////////////////////////////
1588 // Add the FlightGear property utilities.
1589 ////////////////////////////////////////////////////////////////////
1590 globals->add_subsystem("properties", new FGProperties);
1592 ////////////////////////////////////////////////////////////////////
1593 // Initialize the material property subsystem.
1594 ////////////////////////////////////////////////////////////////////
1596 SGPath mpath( globals->get_fg_root() );
1597 mpath.append( "materials.xml" );
1598 string season = fgGetString("/sim/startup/season", "summer");
1599 if ( ! globals->get_matlib()->load(globals->get_fg_root(), mpath.str(), season.c_str()) ) {
1600 SG_LOG( SG_GENERAL, SG_ALERT, "Error loading material lib!" );
1605 ////////////////////////////////////////////////////////////////////
1606 // Initialize the scenery management subsystem.
1607 ////////////////////////////////////////////////////////////////////
1609 if ( globals->get_tile_mgr()->init() ) {
1610 // Load the local scenery data
1611 double visibility_meters = fgGetDouble("/environment/visibility-m");
1613 globals->get_tile_mgr()->update( visibility_meters );
1615 SG_LOG( SG_GENERAL, SG_ALERT, "Error in Tile Manager initialization!" );
1619 // cause refresh of viewer scenery timestamps every 15 seconds...
1620 globals->get_event_mgr()->addTask( "FGTileMgr::refresh_view_timestamps()",
1621 globals->get_tile_mgr(),
1622 &FGTileMgr::refresh_view_timestamps,
1626 ////////////////////////////////////////////////////////////////////
1627 // Initialize the flight model subsystem.
1628 ////////////////////////////////////////////////////////////////////
1632 // allocates structures so must happen before any of the flight
1633 // model or control parameters are set
1634 fgAircraftInit(); // In the future this might not be the case.
1636 ////////////////////////////////////////////////////////////////////
1637 // Initialize the aircraft systems and instrumentation (before the
1639 ////////////////////////////////////////////////////////////////////
1641 globals->add_subsystem("instrumentation", new FGInstrumentMgr);
1642 globals->add_subsystem("systems", new FGSystemMgr);
1644 ////////////////////////////////////////////////////////////////////
1645 // Initialize the XML Autopilot subsystem.
1646 ////////////////////////////////////////////////////////////////////
1648 globals->add_subsystem( "xml-autopilot", new FGXMLAutopilot );
1649 globals->add_subsystem( "route-manager", new FGRouteMgr );
1652 ////////////////////////////////////////////////////////////////////
1653 // Initialize the view manager subsystem.
1654 ////////////////////////////////////////////////////////////////////
1658 ////////////////////////////////////////////////////////////////////
1659 // Create and register the logger.
1660 ////////////////////////////////////////////////////////////////////
1662 globals->add_subsystem("logger", new FGLogger);
1664 ////////////////////////////////////////////////////////////////////
1665 // Create and register the XML GUI.
1666 ////////////////////////////////////////////////////////////////////
1668 globals->add_subsystem("gui", new NewGUI, SGSubsystemMgr::INIT);
1671 ////////////////////////////////////////////////////////////////////
1672 // Initialize the local time subsystem.
1673 ////////////////////////////////////////////////////////////////////
1675 // update the current timezone each 30 minutes
1676 globals->get_event_mgr()->addTask( "fgUpdateLocalTime()",
1677 &fgUpdateLocalTime, 30*60 );
1678 fgInitTimeOffset(); // the environment subsystem needs this
1681 ////////////////////////////////////////////////////////////////////
1682 // Initialize the weather subsystem.
1683 ////////////////////////////////////////////////////////////////////
1685 // Initialize the weather modeling subsystem
1686 globals->add_subsystem("environment", new FGEnvironmentMgr);
1689 ////////////////////////////////////////////////////////////////////
1690 // Initialize the lighting subsystem.
1691 ////////////////////////////////////////////////////////////////////
1693 globals->add_subsystem("lighting", new FGLight);
1695 //////////////////////////////////////////////////////////////////////
1696 // Initialize the 2D cloud subsystem.
1697 ////////////////////////////////////////////////////////////////////
1698 fgGetBool("/sim/rendering/bump-mapping", false);
1700 #ifdef ENABLE_AUDIO_SUPPORT
1701 ////////////////////////////////////////////////////////////////////
1702 // Initialize the sound subsystem.
1703 ////////////////////////////////////////////////////////////////////
1705 init_volume = fgGetFloat("/sim/sound/volume");
1706 fgSetFloat("/sim/sound/volume", 0.0f);
1707 globals->set_soundmgr(new SGSoundMgr);
1708 globals->get_soundmgr()->init();
1709 globals->get_soundmgr()->bind();
1712 ////////////////////////////////////////////////////////////////////
1713 // Initialize the sound-effects subsystem.
1714 ////////////////////////////////////////////////////////////////////
1716 globals->add_subsystem("fx", new FGFX);
1717 globals->add_subsystem("voice", new FGVoiceMgr);
1720 ////////////////////////////////////////////////////////////////////
1721 // Initialise ATC display system
1722 ////////////////////////////////////////////////////////////////////
1724 SG_LOG(SG_GENERAL, SG_INFO, " ATC Display");
1725 globals->set_ATC_display(new FGATCDisplay);
1726 globals->get_ATC_display()->init();
1728 ////////////////////////////////////////////////////////////////////
1729 // Initialise the ATC Manager
1730 ////////////////////////////////////////////////////////////////////
1732 SG_LOG(SG_GENERAL, SG_INFO, " ATC Manager");
1733 globals->set_ATC_mgr(new FGATCMgr);
1734 globals->get_ATC_mgr()->init();
1736 ////////////////////////////////////////////////////////////////////
1737 // Initialise the AI Manager
1738 ////////////////////////////////////////////////////////////////////
1740 SG_LOG(SG_GENERAL, SG_INFO, " AI Manager");
1741 globals->set_AI_mgr(new FGAIMgr);
1742 globals->get_AI_mgr()->init();
1744 ////////////////////////////////////////////////////////////////////
1745 // Initialise the AI Model Manager
1746 ////////////////////////////////////////////////////////////////////
1747 SG_LOG(SG_GENERAL, SG_INFO, " AI Model Manager");
1748 globals->add_subsystem("ai_model", new FGAIManager);
1749 globals->add_subsystem("submodel_mgr", new FGSubmodelMgr);
1752 // It's probably a good idea to initialize the top level traffic manager
1753 // After the AI and ATC systems have been initialized properly.
1754 // AI Traffic manager
1755 globals->add_subsystem("Traffic Manager", new FGTrafficManager);
1758 ////////////////////////////////////////////////////////////////////
1759 // Initialize the cockpit subsystem
1760 ////////////////////////////////////////////////////////////////////
1761 if( fgCockpitInit( ¤t_aircraft )) {
1762 // Cockpit initialized ok.
1764 SG_LOG( SG_GENERAL, SG_ALERT, "Error in Cockpit initialization!" );
1769 ////////////////////////////////////////////////////////////////////
1770 // Initialize I/O subsystem.
1771 ////////////////////////////////////////////////////////////////////
1773 globals->get_io()->init();
1774 globals->get_io()->bind();
1777 ////////////////////////////////////////////////////////////////////
1778 // Add a new 2D panel.
1779 ////////////////////////////////////////////////////////////////////
1781 string panel_path = fgGetString("/sim/panel/path",
1782 "Panels/Default/default.xml");
1784 globals->set_current_panel( fgReadPanel(panel_path) );
1785 if (globals->get_current_panel() == 0) {
1786 SG_LOG( SG_INPUT, SG_ALERT,
1787 "Error reading new panel from " << panel_path );
1789 SG_LOG( SG_INPUT, SG_INFO, "Loaded new panel from " << panel_path );
1790 globals->get_current_panel()->init();
1791 globals->get_current_panel()->bind();
1795 ////////////////////////////////////////////////////////////////////
1796 // Initialize the controls subsystem.
1797 ////////////////////////////////////////////////////////////////////
1799 globals->get_controls()->init();
1800 globals->get_controls()->bind();
1803 ////////////////////////////////////////////////////////////////////
1804 // Initialize the input subsystem.
1805 ////////////////////////////////////////////////////////////////////
1807 globals->add_subsystem("input", new FGInput);
1810 ////////////////////////////////////////////////////////////////////
1811 // Initialize the replay subsystem
1812 ////////////////////////////////////////////////////////////////////
1813 globals->add_subsystem("replay", new FGReplay);
1815 ////////////////////////////////////////////////////////////////////
1816 // Bind and initialize subsystems.
1817 ////////////////////////////////////////////////////////////////////
1819 globals->get_subsystem_mgr()->bind();
1820 globals->get_subsystem_mgr()->init();
1822 ////////////////////////////////////////////////////////////////////
1823 // Initialize multiplayer subsystem
1824 ////////////////////////////////////////////////////////////////////
1826 globals->set_multiplayer_mgr(new FGMultiplayMgr);
1827 globals->get_multiplayer_mgr()->init();
1829 ////////////////////////////////////////////////////////////////////////
1830 // Initialize the Nasal interpreter.
1831 // Do this last, so that the loaded scripts see initialized state
1832 ////////////////////////////////////////////////////////////////////////
1833 FGNasalSys* nasal = new FGNasalSys();
1834 globals->add_subsystem("nasal", nasal, SGSubsystemMgr::INIT);
1837 // initialize methods that depend on other subsystems.
1838 globals->get_subsystem_mgr()->postinit();
1840 ////////////////////////////////////////////////////////////////////////
1841 // End of subsystem initialization.
1842 ////////////////////////////////////////////////////////////////////
1844 SG_LOG( SG_GENERAL, SG_INFO, endl);
1846 // Save the initial state for future
1848 globals->saveInitialState();
1854 void fgReInitSubsystems()
1856 // static const SGPropertyNode *longitude
1857 // = fgGetNode("/sim/presets/longitude-deg");
1858 // static const SGPropertyNode *latitude
1859 // = fgGetNode("/sim/presets/latitude-deg");
1860 static const SGPropertyNode *altitude
1861 = fgGetNode("/sim/presets/altitude-ft");
1862 static const SGPropertyNode *master_freeze
1863 = fgGetNode("/sim/freeze/master");
1865 SG_LOG( SG_GENERAL, SG_INFO,
1866 "fgReInitSubsystems(): /position/altitude = "
1867 << altitude->getDoubleValue() );
1869 bool freeze = master_freeze->getBoolValue();
1871 fgSetBool("/sim/freeze/master", true);
1873 fgSetBool("/sim/crashed", false);
1875 // Force reupdating the positions of the ai 3d models. They are used for
1876 // initializing ground level for the FDM.
1877 globals->get_subsystem("ai_model")->reinit();
1879 // Initialize the FDM
1882 // allocates structures so must happen before any of the flight
1883 // model or control parameters are set
1884 fgAircraftInit(); // In the future this might not be the case.
1886 // reload offsets from config defaults
1887 globals->get_viewmgr()->reinit();
1891 globals->get_controls()->reset_all();
1893 fgUpdateLocalTime();
1895 // re-init to proper time of day setting
1899 fgSetBool("/sim/freeze/master", false);
1901 fgSetBool("/sim/sceneryloaded",false);