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/auto_gui.hxx>
74 #include <Autopilot/route_mgr.hxx>
75 #include <Autopilot/xmlauto.hxx>
76 #include <Cockpit/cockpit.hxx>
77 #include <Cockpit/panel.hxx>
78 #include <Cockpit/panel_io.hxx>
80 #include <FDM/SP/ADA.hxx>
81 #include <FDM/SP/ACMS.hxx>
83 #include <FDM/Balloon.h>
84 #include <FDM/ExternalNet/ExternalNet.hxx>
85 #include <FDM/ExternalPipe/ExternalPipe.hxx>
86 #include <FDM/JSBSim/JSBSim.hxx>
87 #include <FDM/LaRCsim/LaRCsim.hxx>
88 #include <FDM/MagicCarpet.hxx>
89 #include <FDM/UFO.hxx>
90 #include <FDM/NullFDM.hxx>
91 #include <FDM/YASim/YASim.hxx>
92 #include <GUI/new_gui.hxx>
93 #include <Include/general.hxx>
94 #include <Input/input.hxx>
95 #include <Instrumentation/instrument_mgr.hxx>
96 #include <Model/acmodel.hxx>
97 #include <AIModel/submodel.hxx>
98 #include <AIModel/AIManager.hxx>
99 #include <Navaids/navdb.hxx>
100 #include <Navaids/navlist.hxx>
101 #include <Scenery/scenery.hxx>
102 #include <Scenery/tilemgr.hxx>
103 #include <Scripting/NasalSys.hxx>
104 #include <Sound/fg_fx.hxx>
105 #include <Sound/beacon.hxx>
106 #include <Sound/morse.hxx>
107 #include <Sound/voice.hxx>
108 #include <Systems/system_mgr.hxx>
109 #include <Time/light.hxx>
110 #include <Time/sunsolver.hxx>
111 #include <Time/tmp.hxx>
112 #include <Traffic/TrafficMgr.hxx>
113 #include <MultiPlayer/multiplaymgr.hxx>
115 #include <Environment/environment_mgr.hxx>
117 #include "fg_init.hxx"
119 #include "fg_commands.hxx"
120 #include "fg_props.hxx"
121 #include "options.hxx"
122 #include "globals.hxx"
123 #include "logger.hxx"
124 #include "viewmgr.hxx"
127 #if defined(FX) && defined(XMESA)
128 #include <GL/xmesa.h>
131 SG_USING_STD(string);
135 extern const char *default_root;
139 // Scan the command line options for the specified option and return
141 static string fgScanForOption( const string& option, int argc, char **argv ) {
144 if (hostname == NULL)
147 gethostname(_hostname, 256);
148 hostname = strdup(_hostname);
149 free_hostname = true;
152 SG_LOG(SG_GENERAL, SG_INFO, "Scanning command line for: " << option );
154 int len = option.length();
157 SG_LOG( SG_GENERAL, SG_DEBUG, "argv[" << i << "] = " << argv[i] );
159 string arg = argv[i];
160 if ( arg.find( option ) == 0 ) {
161 return arg.substr( len );
171 // Scan the user config files for the specified option and return
173 static string fgScanForOption( const string& option, const string& path ) {
174 sg_gzifstream in( path );
175 if ( !in.is_open() ) {
179 SG_LOG( SG_GENERAL, SG_INFO, "Scanning " << path << " for: " << option );
181 int len = option.length();
185 while ( ! in.eof() ) {
188 while ( in.get(c) && c != '\0' ) {
193 #if defined( macintosh )
194 getline( in, line, '\r' );
196 getline( in, line, '\n' );
199 // catch extraneous (DOS) line ending character
200 if ( line[line.length() - 1] < 32 ) {
201 line = line.substr( 0, line.length()-1 );
204 if ( line.find( option ) == 0 ) {
205 return line.substr( len );
214 // Scan the user config files for the specified option and return
216 static string fgScanForOption( const string& option ) {
219 #if defined( unix ) || defined( __CYGWIN__ )
220 // Next check home directory for .fgfsrc.hostname file
222 if ( homedir != NULL ) {
223 SGPath config( homedir );
224 config.append( ".fgfsrc" );
225 config.concat( "." );
226 config.concat( hostname );
227 arg = fgScanForOption( option, config.str() );
232 // Next check home directory for .fgfsrc file
234 if ( homedir != NULL ) {
235 SGPath config( homedir );
236 config.append( ".fgfsrc" );
237 arg = fgScanForOption( option, config.str() );
242 // Check for $fg_root/system.fgfsrc
243 SGPath config( globals->get_fg_root() );
244 config.append( "system.fgfsrc" );
245 arg = fgScanForOption( option, config.str() );
252 // Read in configuration (files and command line options) but only set
254 bool fgInitFGRoot ( int argc, char **argv ) {
257 // First parse command line options looking for --fg-root=, this
258 // will override anything specified in a config file
259 root = fgScanForOption( "--fg-root=", argc, argv);
261 // Check in one of the user configuration files.
263 root = fgScanForOption( "--fg-root=" );
265 // Next check if fg-root is set as an env variable
266 if ( root.empty() ) {
267 char *envp = ::getenv( "FG_ROOT" );
268 if ( envp != NULL ) {
273 // Otherwise, default to a random compiled-in location if we can't
274 // find fg-root any other way.
275 if ( root.empty() ) {
276 #if defined( __CYGWIN__ )
277 root = "/FlightGear";
278 #elif defined( WIN32 )
279 root = "\\FlightGear";
280 #elif defined(OSX_BUNDLE)
281 /* the following code looks for the base package directly inside
282 the application bundle. This can be changed fairly easily by
283 fiddling with the code below. And yes, I know it's ugly and verbose.
285 CFBundleRef appBundle = CFBundleGetMainBundle();
286 CFURLRef appUrl = CFBundleCopyBundleURL(appBundle);
287 CFRelease(appBundle);
289 // look for a 'data' subdir directly inside the bundle : is there
290 // a better place? maybe in Resources? I don't know ...
291 CFURLRef dataDir = CFURLCreateCopyAppendingPathComponent(NULL, appUrl, CFSTR("data"), true);
293 // now convert down to a path, and the a c-string
294 CFStringRef path = CFURLCopyFileSystemPath(dataDir, kCFURLPOSIXPathStyle);
295 root = CFStringGetCStringPtr(path, CFStringGetSystemEncoding());
298 CFRelease(appBundle);
306 SG_LOG(SG_INPUT, SG_INFO, "fg_root = " << root );
307 globals->set_fg_root(root);
313 // Read in configuration (files and command line options) but only set
315 bool fgInitFGAircraft ( int argc, char **argv ) {
318 // First parse command line options looking for --aircraft=, this
319 // will override anything specified in a config file
320 aircraft = fgScanForOption( "--aircraft=", argc, argv );
322 // Check in one of the user configuration files.
323 if ( aircraft.empty() )
324 aircraft = fgScanForOption( "--aircraft=" );
326 // if an aircraft was specified, set the property name
327 if ( !aircraft.empty() ) {
328 SG_LOG(SG_INPUT, SG_INFO, "aircraft = " << aircraft );
329 fgSetString("/sim/aircraft", aircraft.c_str() );
331 SG_LOG(SG_INPUT, SG_INFO, "No user specified aircraft, using default" );
338 // Return the current base package version
339 string fgBasePackageVersion() {
340 SGPath base_path( globals->get_fg_root() );
341 base_path.append("version");
343 sg_gzifstream in( base_path.str() );
344 if ( !in.is_open() ) {
345 SGPath old_path( globals->get_fg_root() );
346 old_path.append( "Thanks" );
347 sg_gzifstream old( old_path.str() );
348 if ( !old.is_open() ) {
351 return "[old version]";
362 // Initialize the localization
363 SGPropertyNode *fgInitLocale(const char *language) {
364 SGPropertyNode *c_node = NULL, *d_node = NULL;
365 SGPropertyNode *intl = fgGetNode("/sim/intl");
367 SG_LOG(SG_GENERAL, SG_INFO, "Selecting language: " << language );
369 // localization not defined
374 // Select the proper language from the list
376 vector<SGPropertyNode_ptr> locale = intl->getChildren("locale");
377 for (unsigned int i = 0; i < locale.size(); i++) {
379 vector<SGPropertyNode_ptr> lang = locale[i]->getChildren("lang");
380 for (unsigned int j = 0; j < lang.size(); j++) {
382 if (!strcmp(lang[j]->getStringValue(), language)) {
391 d_node = intl->getChild("locale");
395 // Check for localized font
396 SGPropertyNode *font_n = c_node->getNode("font", true);
397 if ( !strcmp(font_n->getStringValue(), "") )
398 font_n->setStringValue(d_node->getStringValue("font", "typewriter.txf"));
402 // Load the default strings
404 SGPath d_path( globals->get_fg_root() );
406 const char *d_path_str = d_node->getStringValue("strings");
408 SG_LOG(SG_GENERAL, SG_ALERT, "Incorrect path in configuration file.");
412 d_path.append(d_path_str);
413 SG_LOG(SG_GENERAL, SG_INFO, "Reading localized strings from "
416 SGPropertyNode *strings = c_node->getNode("strings");
418 readProperties(d_path.str(), strings);
419 } catch (const sg_exception &e) {
420 SG_LOG(SG_GENERAL, SG_ALERT, "Unable to read the localized strings");
425 // Load the language specific strings
427 if (c_node != d_node) {
428 SGPath c_path( globals->get_fg_root() );
430 const char *c_path_str = c_node->getStringValue("strings");
432 SG_LOG(SG_GENERAL, SG_ALERT, "Incorrect path in configuration file.");
436 c_path.append(c_path_str);
437 SG_LOG(SG_GENERAL, SG_INFO, "Reading localized strings from "
441 readProperties(c_path.str(), strings);
442 } catch (const sg_exception &e) {
443 SG_LOG(SG_GENERAL, SG_ALERT, "Unable to read the localized strings");
453 // Initialize the localization routines
454 bool fgDetectLanguage() {
455 char *language = ::getenv("LANG");
457 if (language == NULL) {
458 SG_LOG(SG_GENERAL, SG_INFO, "Unable to detect the language" );
462 SGPropertyNode *locale = fgInitLocale(language);
464 SG_LOG(SG_GENERAL, SG_ALERT,
465 "No internationalization settings specified in preferences.xml" );
470 globals->set_locale( locale );
475 // Attempt to locate and parse the various non-XML config files in order
476 // from least precidence to greatest precidence
478 do_options (int argc, char ** argv)
480 // Check for $fg_root/system.fgfsrc
481 SGPath config( globals->get_fg_root() );
482 config.append( "system.fgfsrc" );
483 fgParseOptions(config.str());
485 #if defined( unix ) || defined( __CYGWIN__ )
486 config.concat( "." );
487 config.concat( hostname );
488 fgParseOptions(config.str());
491 // Check for ~/.fgfsrc
492 if ( homedir != NULL ) {
493 config.set( homedir );
494 config.append( ".fgfsrc" );
495 fgParseOptions(config.str());
498 #if defined( unix ) || defined( __CYGWIN__ )
499 // Check for ~/.fgfsrc.hostname
500 config.concat( "." );
501 config.concat( hostname );
502 fgParseOptions(config.str());
505 // Parse remaining command line options
506 // These will override anything specified in a config file
507 fgParseArgs(argc, argv);
511 static string fgFindAircraftPath( const SGPath &path, const string &aircraft ) {
513 ulDir *dirp = ulOpenDir(path.str().c_str());
515 cerr << "Unable to open aircraft directory '" << path.str() << '\'' << endl;
520 while ((dire = ulReadDir(dirp)) != NULL) {
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 );
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 // Best solution is to set fg-home to My Documents but it requires reading the Windows registry
598 bool fg_home_set = false;
600 LONG rc = RegOpenKeyEx( HKEY_CURRENT_USER, "Software\\Microsoft\\Windows\\CurrentVersion\\Explorer\\Shell Folders", 0, KEY_QUERY_VALUE, &hKey );
601 if ( rc == ERROR_SUCCESS ) {
603 rc = RegQueryValueEx( hKey, "Personal", NULL, &vt, NULL, &bs );
604 if ( rc == ERROR_SUCCESS ) {
605 unsigned char *buff = new unsigned char[ bs ];
606 rc = RegQueryValueEx( hKey, "Personal", NULL, &vt, buff, &bs );
607 fgSetString("/sim/fg-home", (char *)buff);
613 char *envp = ::getenv( "APPDATA" ); // APPDATA is for applications and is hidden
615 SGPath config( envp );
616 config.append( "flightgear.org" );
617 if ( !fg_home_set ) {
618 fgSetString("/sim/fg-home", config.c_str());
622 if ( homedir != NULL ) {
623 SGPath config( homedir );
624 config.append( ".fgfs" );
625 fgSetString("/sim/fg-home", config.c_str());
627 config.append( "autosave.xml" );
628 SG_LOG(SG_INPUT, SG_INFO, "Reading user settings from autosave.xml");
630 fgLoadProps(config.str().c_str(), globals->get_props(), false,
631 SGPropertyNode::USERARCHIVE);
633 SG_LOG(SG_INPUT, SG_BULK, "First time reading user settings");
635 SG_LOG(SG_INPUT, SG_BULK, "Finished Reading user settings");
638 // parse options after loading aircraft to ensure any user
639 // overrides of defaults are honored.
640 do_options(argc, argv);
651 // This function is never used, but maybe useful in the future ???
654 // Preset lon/lat given an airport id
655 static bool fgSetPosFromAirportID( const string& id ) {
659 SG_LOG( SG_GENERAL, SG_INFO,
660 "Attempting to set starting position from airport code " << id );
662 if ( fgFindAirportID( id, &a ) ) {
664 fgSetDouble("/sim/presets/longitude-deg", a->longitude );
665 fgSetDouble("/sim/presets/latitude-deg", a->latitude );
667 // other code depends on the actual postition being set so set
669 fgSetDouble("/position/longitude-deg", a->longitude );
670 fgSetDouble("/position/latitude-deg", a->latitude );
672 SG_LOG( SG_GENERAL, SG_INFO,
673 "Position for " << id << " is (" << a->longitude
674 << ", " << a->latitude << ")" );
684 // Set current tower position lon/lat given an airport id
685 static bool fgSetTowerPosFromAirportID( const string& id, double hdg ) {
687 // tower height hard coded for now...
688 float towerheight=50.0f;
690 // make a little off the heading for 1 runway airports...
691 float fudge_lon = fabs(sin(hdg)) * .003f;
692 float fudge_lat = .003f - fudge_lon;
694 const FGAirport *a = fgFindAirportID( id);
696 fgSetDouble("/sim/tower/longitude-deg", a->getLongitude() + fudge_lon);
697 fgSetDouble("/sim/tower/latitude-deg", a->getLatitude() + fudge_lat);
698 fgSetDouble("/sim/tower/altitude-ft", a->getElevation() + towerheight);
706 struct FGTowerLocationListener : SGPropertyChangeListener {
707 void valueChanged(SGPropertyNode* node) {
708 const double hdg = fgGetDouble( "/orientation/heading-deg", 0);
709 const string id(node->getStringValue());
710 fgSetTowerPosFromAirportID(id, hdg);
714 static void fgInitTowerLocationListener() {
715 fgGetNode("/sim/tower/airport-id", true)
716 ->addChangeListener( new FGTowerLocationListener() );
719 // Set current_options lon/lat given an airport id and heading (degrees)
720 static bool fgSetPosFromAirportIDandHdg( const string& id, double tgt_hdg ) {
724 // set initial position from runway and heading
726 SG_LOG( SG_GENERAL, SG_INFO,
727 "Attempting to set starting position from airport code "
728 << id << " heading " << tgt_hdg );
730 if ( ! globals->get_runways()->search( id, (int)tgt_hdg, &r ) ) {
731 SG_LOG( SG_GENERAL, SG_ALERT,
732 "Failed to find a good runway for " << id << '\n' );
739 double lat2, lon2, az2;
740 double heading = r._heading;
741 double azimuth = heading + 180.0;
742 while ( azimuth >= 360.0 ) { azimuth -= 360.0; }
744 SG_LOG( SG_GENERAL, SG_INFO,
745 "runway = " << r._lon << ", " << r._lat
746 << " length = " << r._length * SG_FEET_TO_METER
747 << " heading = " << azimuth );
749 geo_direct_wgs_84 ( 0, r._lat, r._lon, azimuth,
750 r._length * SG_FEET_TO_METER * 0.5 - 5.0,
751 &lat2, &lon2, &az2 );
753 if ( fabs( fgGetDouble("/sim/presets/offset-distance") ) > SG_EPSILON ) {
755 double odist = fgGetDouble("/sim/presets/offset-distance");
756 odist *= SG_NM_TO_METER;
757 double oaz = azimuth;
758 if ( fabs(fgGetDouble("/sim/presets/offset-azimuth")) > SG_EPSILON ) {
759 oaz = fgGetDouble("/sim/presets/offset-azimuth") + 180;
762 while ( oaz >= 360.0 ) { oaz -= 360.0; }
763 geo_direct_wgs_84 ( 0, lat2, lon2, oaz, odist, &olat, &olon, &az2 );
769 fgSetDouble("/sim/presets/longitude-deg", lon2 );
770 fgSetDouble("/sim/presets/latitude-deg", lat2 );
771 fgSetDouble("/sim/presets/heading-deg", heading );
773 // other code depends on the actual values being set ...
774 fgSetDouble("/position/longitude-deg", lon2 );
775 fgSetDouble("/position/latitude-deg", lat2 );
776 fgSetDouble("/orientation/heading-deg", heading );
778 SG_LOG( SG_GENERAL, SG_INFO,
779 "Position for " << id << " is ("
781 << lat2 << ") new heading is "
788 // Set current_options lon/lat given an airport id and runway number
789 static bool fgSetPosFromAirportIDandRwy( const string& id, const string& rwy ) {
793 // set initial position from airport and runway number
795 SG_LOG( SG_GENERAL, SG_INFO,
796 "Attempting to set starting position for "
797 << id << ":" << rwy );
799 if ( ! globals->get_runways()->search( id, rwy, &r ) ) {
800 SG_LOG( SG_GENERAL, SG_ALERT,
801 "Failed to find runway " << rwy <<
802 " at airport " << id );
809 double lat2, lon2, az2;
810 double heading = r._heading;
811 double azimuth = heading + 180.0;
812 while ( azimuth >= 360.0 ) { azimuth -= 360.0; }
814 SG_LOG( SG_GENERAL, SG_INFO,
815 "runway = " << r._lon << ", " << r._lat
816 << " length = " << r._length * SG_FEET_TO_METER
817 << " heading = " << azimuth );
819 geo_direct_wgs_84 ( 0, r._lat, r._lon,
821 r._length * SG_FEET_TO_METER * 0.5 - 5.0,
822 &lat2, &lon2, &az2 );
824 if ( fabs( fgGetDouble("/sim/presets/offset-distance") ) > SG_EPSILON )
827 double odist = fgGetDouble("/sim/presets/offset-distance");
828 odist *= SG_NM_TO_METER;
829 double oaz = azimuth;
830 if ( fabs(fgGetDouble("/sim/presets/offset-azimuth")) > SG_EPSILON )
832 oaz = fgGetDouble("/sim/presets/offset-azimuth") + 180;
833 heading = fgGetDouble("/sim/presets/heading-deg");
835 while ( oaz >= 360.0 ) { oaz -= 360.0; }
836 geo_direct_wgs_84 ( 0, lat2, lon2, oaz, odist, &olat, &olon, &az2 );
842 fgSetDouble("/sim/presets/longitude-deg", lon2 );
843 fgSetDouble("/sim/presets/latitude-deg", lat2 );
844 fgSetDouble("/sim/presets/heading-deg", heading );
846 // other code depends on the actual values being set ...
847 fgSetDouble("/position/longitude-deg", lon2 );
848 fgSetDouble("/position/latitude-deg", lat2 );
849 fgSetDouble("/orientation/heading-deg", heading );
851 SG_LOG( SG_GENERAL, SG_INFO,
852 "Position for " << id << " is ("
854 << lat2 << ") new heading is "
861 static void fgSetDistOrAltFromGlideSlope() {
862 // cout << "fgSetDistOrAltFromGlideSlope()" << endl;
863 string apt_id = fgGetString("/sim/presets/airport-id");
864 double gs = fgGetDouble("/sim/presets/glideslope-deg")
865 * SG_DEGREES_TO_RADIANS ;
866 double od = fgGetDouble("/sim/presets/offset-distance");
867 double alt = fgGetDouble("/sim/presets/altitude-ft");
869 double apt_elev = 0.0;
870 if ( ! apt_id.empty() ) {
871 apt_elev = fgGetAirportElev( apt_id );
872 if ( apt_elev < -9990.0 ) {
879 if( fabs(gs) > 0.01 && fabs(od) > 0.1 && alt < -9990 ) {
880 // set altitude from glideslope and offset-distance
881 od *= SG_NM_TO_METER * SG_METER_TO_FEET;
882 alt = fabs(od*tan(gs)) + apt_elev;
883 fgSetDouble("/sim/presets/altitude-ft", alt);
884 fgSetBool("/sim/presets/onground", false);
885 SG_LOG( SG_GENERAL, SG_INFO, "Calculated altitude as: "
887 } else if( fabs(gs) > 0.01 && alt > 0 && fabs(od) < 0.1) {
888 // set offset-distance from glideslope and altitude
889 od = (alt - apt_elev) / tan(gs);
890 od *= -1*SG_FEET_TO_METER * SG_METER_TO_NM;
891 fgSetDouble("/sim/presets/offset-distance", od);
892 fgSetBool("/sim/presets/onground", false);
893 SG_LOG( SG_GENERAL, SG_INFO, "Calculated offset distance as: "
895 } else if( fabs(gs) > 0.01 ) {
896 SG_LOG( SG_GENERAL, SG_ALERT,
897 "Glideslope given but not altitude or offset-distance." );
898 SG_LOG( SG_GENERAL, SG_ALERT, "Resetting glideslope to zero" );
899 fgSetDouble("/sim/presets/glideslope-deg", 0);
900 fgSetBool("/sim/presets/onground", true);
905 // Set current_options lon/lat given an airport id and heading (degrees)
906 static bool fgSetPosFromNAV( const string& id, const double& freq ) {
908 = globals->get_navlist()->findByIdentAndFreq( id.c_str(), freq );
910 // set initial position from runway and heading
912 SG_LOG( SG_GENERAL, SG_INFO, "Attempting to set starting position for "
913 << id << ":" << freq );
915 double lon = nav->get_lon();
916 double lat = nav->get_lat();
918 if ( fabs( fgGetDouble("/sim/presets/offset-distance") ) > SG_EPSILON )
920 double odist = fgGetDouble("/sim/presets/offset-distance")
922 double oaz = fabs(fgGetDouble("/sim/presets/offset-azimuth"))
924 while ( oaz >= 360.0 ) { oaz -= 360.0; }
925 double olat, olon, az2;
926 geo_direct_wgs_84 ( 0, lat, lon, oaz, odist, &olat, &olon, &az2 );
933 fgSetDouble("/sim/presets/longitude-deg", lon );
934 fgSetDouble("/sim/presets/latitude-deg", lat );
936 // other code depends on the actual values being set ...
937 fgSetDouble("/position/longitude-deg", lon );
938 fgSetDouble("/position/latitude-deg", lat );
939 fgSetDouble("/orientation/heading-deg",
940 fgGetDouble("/sim/presets/heading-deg") );
942 SG_LOG( SG_GENERAL, SG_INFO,
943 "Position for " << id << ":" << freq << " is ("
944 << lon << ", "<< lat << ")" );
948 SG_LOG( SG_GENERAL, SG_ALERT, "Failed to locate NAV = "
949 << id << ":" << freq );
954 // Set current_options lon/lat given an aircraft carrier id
955 static bool fgSetPosFromCarrier( const string& carrier, const string& posid ) {
957 // set initial position from runway and heading
961 if (FGAIManager::getStartPosition(carrier, posid, geodPos, heading, uvw)) {
962 double lon = geodPos.getLongitudeDeg();
963 double lat = geodPos.getLatitudeDeg();
964 double alt = geodPos.getElevationFt();
966 SG_LOG( SG_GENERAL, SG_INFO, "Attempting to set starting position for "
967 << carrier << " at lat = " << lat << ", lon = " << lon
968 << ", alt = " << alt << ", heading = " << heading);
970 fgSetDouble("/sim/presets/longitude-deg", lon);
971 fgSetDouble("/sim/presets/latitude-deg", lat);
972 fgSetDouble("/sim/presets/altitude-ft", alt);
973 fgSetDouble("/sim/presets/heading-deg", heading);
974 fgSetDouble("/position/longitude-deg", lon);
975 fgSetDouble("/position/latitude-deg", lat);
976 fgSetDouble("/position/altitude-ft", alt);
977 fgSetDouble("/orientation/heading-deg", heading);
979 fgSetString("/sim/presets/speed-set", "UVW");
980 fgSetDouble("/velocities/uBody-fps", uvw(0));
981 fgSetDouble("/velocities/vBody-fps", uvw(1));
982 fgSetDouble("/velocities/wBody-fps", uvw(2));
983 fgSetDouble("/sim/presets/uBody-fps", uvw(0));
984 fgSetDouble("/sim/presets/vBody-fps", uvw(1));
985 fgSetDouble("/sim/presets/wBody-fps", uvw(2));
987 fgSetBool("/sim/presets/onground", true);
991 SG_LOG( SG_GENERAL, SG_ALERT, "Failed to locate aircraft carrier = "
997 // Set current_options lon/lat given an airport id and heading (degrees)
998 static bool fgSetPosFromFix( const string& id ) {
1001 // set initial position from runway and heading
1002 if ( globals->get_fixlist()->query( id.c_str(), &fix ) ) {
1003 SG_LOG( SG_GENERAL, SG_INFO, "Attempting to set starting position for "
1006 double lon = fix.get_lon();
1007 double lat = fix.get_lat();
1009 if ( fabs( fgGetDouble("/sim/presets/offset-distance") ) > SG_EPSILON )
1011 double odist = fgGetDouble("/sim/presets/offset-distance")
1013 double oaz = fabs(fgGetDouble("/sim/presets/offset-azimuth"))
1015 while ( oaz >= 360.0 ) { oaz -= 360.0; }
1016 double olat, olon, az2;
1017 geo_direct_wgs_84 ( 0, lat, lon, oaz, odist, &olat, &olon, &az2 );
1024 fgSetDouble("/sim/presets/longitude-deg", lon );
1025 fgSetDouble("/sim/presets/latitude-deg", lat );
1027 // other code depends on the actual values being set ...
1028 fgSetDouble("/position/longitude-deg", lon );
1029 fgSetDouble("/position/latitude-deg", lat );
1030 fgSetDouble("/orientation/heading-deg",
1031 fgGetDouble("/sim/presets/heading-deg") );
1033 SG_LOG( SG_GENERAL, SG_INFO,
1034 "Position for " << id << " is ("
1035 << lon << ", "<< lat << ")" );
1039 SG_LOG( SG_GENERAL, SG_ALERT, "Failed to locate NAV = "
1045 static void parseWaypoints() {
1046 string_list *waypoints = globals->get_initial_waypoints();
1048 vector<string>::iterator i;
1049 for (i = waypoints->begin();
1050 i != waypoints->end();
1055 // Now were done using the way points we can deallocate the
1057 while (waypoints->begin() != waypoints->end()) {
1058 waypoints->pop_back();
1061 globals->set_initial_waypoints(0);
1070 * Initialize vor/ndb/ils/fix list management and query systems (as
1071 * well as simple airport db list)
1076 SG_LOG(SG_GENERAL, SG_INFO, "Loading Airport Database ...");
1078 SGPath aptdb( globals->get_fg_root() );
1079 aptdb.append( "Airports/apt.dat" );
1081 SGPath p_metar( globals->get_fg_root() );
1082 p_metar.append( "Airports/metar.dat" );
1084 FGAirportList *airports = new FGAirportList();
1085 globals->set_airports( airports );
1086 FGRunwayList *runways = new FGRunwayList();
1087 globals->set_runways( runways );
1089 fgAirportDBLoad( airports, runways, aptdb.str(), p_metar.str() );
1091 FGNavList *navlist = new FGNavList;
1092 FGNavList *loclist = new FGNavList;
1093 FGNavList *gslist = new FGNavList;
1094 FGNavList *dmelist = new FGNavList;
1095 FGNavList *mkrlist = new FGNavList;
1096 FGNavList *tacanlist = new FGNavList;
1097 FGNavList *carrierlist = new FGNavList;
1098 FGTACANList *channellist = new FGTACANList;
1100 globals->set_navlist( navlist );
1101 globals->set_loclist( loclist );
1102 globals->set_gslist( gslist );
1103 globals->set_dmelist( dmelist );
1104 globals->set_mkrlist( mkrlist );
1105 globals->set_tacanlist( tacanlist );
1106 globals->set_carrierlist( carrierlist );
1107 globals->set_channellist( channellist );
1109 if ( !fgNavDBInit(airports, navlist, loclist, gslist, dmelist, mkrlist, tacanlist, carrierlist, channellist) ) {
1110 SG_LOG( SG_GENERAL, SG_ALERT,
1111 "Problems loading one or more navigational database" );
1114 if ( fgGetBool("/sim/navdb/localizers/auto-align", true) ) {
1115 // align all the localizers with their corresponding runways
1116 // since data sources are good for cockpit navigation
1117 // purposes, but not always to the error tolerances needed to
1118 // exactly place these items.
1120 = fgGetDouble( "/sim/navdb/localizers/auto-align-threshold-deg",
1122 fgNavDBAlignLOCwithRunway( runways, loclist, threshold );
1125 SG_LOG(SG_GENERAL, SG_INFO, " Fixes");
1126 SGPath p_fix( globals->get_fg_root() );
1127 p_fix.append( "Navaids/fix.dat" );
1128 FGFixList *fixlist = new FGFixList;
1129 fixlist->init( p_fix );
1130 globals->set_fixlist( fixlist );
1136 // Set the initial position based on presets (or defaults)
1137 bool fgInitPosition() {
1138 // cout << "fgInitPosition()" << endl;
1139 double gs = fgGetDouble("/sim/presets/glideslope-deg")
1140 * SG_DEGREES_TO_RADIANS ;
1141 double od = fgGetDouble("/sim/presets/offset-distance");
1142 double alt = fgGetDouble("/sim/presets/altitude-ft");
1144 bool set_pos = false;
1146 // If glideslope is specified, then calculate offset-distance or
1147 // altitude relative to glide slope if either of those was not
1149 if ( fabs( gs ) > 0.01 ) {
1150 fgSetDistOrAltFromGlideSlope();
1154 // If we have an explicit, in-range lon/lat, don't change it, just use it.
1155 // If not, check for an airport-id and use that.
1156 // If not, default to the middle of the KSFO field.
1157 // The default values for lon/lat are deliberately out of range
1158 // so that the airport-id can take effect; valid lon/lat will
1159 // override airport-id, however.
1160 double lon_deg = fgGetDouble("/sim/presets/longitude-deg");
1161 double lat_deg = fgGetDouble("/sim/presets/latitude-deg");
1162 if ( lon_deg >= -180.0 && lon_deg <= 180.0
1163 && lat_deg >= -90.0 && lat_deg <= 90.0 )
1168 string apt = fgGetString("/sim/presets/airport-id");
1169 string rwy_no = fgGetString("/sim/presets/runway");
1170 double hdg = fgGetDouble("/sim/presets/heading-deg");
1171 string vor = fgGetString("/sim/presets/vor-id");
1172 double vor_freq = fgGetDouble("/sim/presets/vor-freq");
1173 string ndb = fgGetString("/sim/presets/ndb-id");
1174 double ndb_freq = fgGetDouble("/sim/presets/ndb-freq");
1175 string carrier = fgGetString("/sim/presets/carrier");
1176 string parkpos = fgGetString("/sim/presets/parkpos");
1177 string fix = fgGetString("/sim/presets/fix");
1179 fgSetDouble( "/orientation/heading-deg", hdg );
1180 fgInitTowerLocationListener();
1182 if ( !set_pos && !apt.empty() && !rwy_no.empty() ) {
1183 // An airport + runway is requested
1184 if ( fgSetPosFromAirportIDandRwy( apt, rwy_no ) ) {
1185 // set tower position (a little off the heading for single
1187 fgSetString("/sim/tower/airport-id", apt.c_str());
1192 if ( !set_pos && !apt.empty() ) {
1193 // An airport is requested (find runway closest to hdg)
1194 if ( fgSetPosFromAirportIDandHdg( apt, hdg ) ) {
1195 // set tower position (a little off the heading for single
1197 fgSetString("/sim/tower/airport-id", apt.c_str());
1202 if ( !set_pos && !vor.empty() ) {
1203 // a VOR is requested
1204 if ( fgSetPosFromNAV( vor, vor_freq ) ) {
1209 if ( !set_pos && !ndb.empty() ) {
1210 // an NDB is requested
1211 if ( fgSetPosFromNAV( ndb, ndb_freq ) ) {
1216 if ( !set_pos && !carrier.empty() ) {
1217 // an aircraft carrier is requested
1218 if ( fgSetPosFromCarrier( carrier, parkpos ) ) {
1223 if ( !set_pos && !fix.empty() ) {
1224 // a Fix is requested
1225 if ( fgSetPosFromFix( fix ) ) {
1231 // No lon/lat specified, no airport specified, default to
1232 // middle of KSFO field.
1233 fgSetDouble("/sim/presets/longitude-deg", -122.374843);
1234 fgSetDouble("/sim/presets/latitude-deg", 37.619002);
1237 fgSetDouble( "/position/longitude-deg",
1238 fgGetDouble("/sim/presets/longitude-deg") );
1239 fgSetDouble( "/position/latitude-deg",
1240 fgGetDouble("/sim/presets/latitude-deg") );
1242 // determine if this should be an on-ground or in-air start
1243 if ((fabs(gs) > 0.01 || fabs(od) > 0.1 || alt > 0.1) && carrier.empty()) {
1244 fgSetBool("/sim/presets/onground", false);
1246 fgSetBool("/sim/presets/onground", true);
1253 // General house keeping initializations
1254 bool fgInitGeneral() {
1257 #if defined(FX) && defined(XMESA)
1258 char *mesa_win_state;
1261 SG_LOG( SG_GENERAL, SG_INFO, "General Initialization" );
1262 SG_LOG( SG_GENERAL, SG_INFO, "======= ==============" );
1264 root = globals->get_fg_root();
1265 if ( ! root.length() ) {
1266 // No root path set? Then bail ...
1267 SG_LOG( SG_GENERAL, SG_ALERT,
1268 "Cannot continue without a path to the base package "
1269 << "being defined." );
1272 SG_LOG( SG_GENERAL, SG_INFO, "FG_ROOT = " << '"' << root << '"' << endl );
1274 #if defined(FX) && defined(XMESA)
1275 // initialize full screen flag
1276 globals->set_fullscreen(false);
1277 if ( strstr ( general.get_glRenderer(), "Glide" ) ) {
1278 // Test for the MESA_GLX_FX env variable
1279 if ( (mesa_win_state = getenv( "MESA_GLX_FX" )) != NULL) {
1280 // test if we are fullscreen mesa/glide
1281 if ( (mesa_win_state[0] == 'f') ||
1282 (mesa_win_state[0] == 'F') ) {
1283 globals->set_fullscreen(true);
1293 // Initialize the flight model subsystem. This just creates the
1294 // object. The actual fdm initialization is delayed until we get a
1295 // proper scenery elevation hit. This is checked for in main.cxx
1299 if ( cur_fdm_state ) {
1300 delete cur_fdm_state;
1304 double dt = 1.0 / fgGetInt("/sim/model-hz");
1305 string model = fgGetString("/sim/flight-model");
1308 if ( model == "larcsim" ) {
1309 cur_fdm_state = new FGLaRCsim( dt );
1310 } else if ( model == "jsb" ) {
1311 cur_fdm_state = new FGJSBsim( dt );
1313 } else if ( model == "ada" ) {
1314 cur_fdm_state = new FGADA( dt );
1315 } else if ( model == "acms" ) {
1316 cur_fdm_state = new FGACMS( dt );
1318 } else if ( model == "balloon" ) {
1319 cur_fdm_state = new FGBalloonSim( dt );
1320 } else if ( model == "magic" ) {
1321 cur_fdm_state = new FGMagicCarpet( dt );
1322 } else if ( model == "ufo" ) {
1323 cur_fdm_state = new FGUFO( dt );
1324 } else if ( model == "external" ) {
1325 // external is a synonym for "--fdm=null" and is
1326 // maintained here for backwards compatibility
1327 cur_fdm_state = new FGNullFDM( dt );
1328 } else if ( model.find("network") == 0 ) {
1329 string host = "localhost";
1333 string net_options = model.substr(8);
1334 string::size_type begin, end;
1337 end = net_options.find( ",", begin );
1338 if ( end != string::npos ) {
1339 host = net_options.substr(begin, end - begin);
1343 end = net_options.find( ",", begin );
1344 if ( end != string::npos ) {
1345 port1 = atoi( net_options.substr(begin, end - begin).c_str() );
1349 end = net_options.find( ",", begin );
1350 if ( end != string::npos ) {
1351 port2 = atoi( net_options.substr(begin, end - begin).c_str() );
1355 end = net_options.find( ",", begin );
1356 if ( end != string::npos ) {
1357 port3 = atoi( net_options.substr(begin, end - begin).c_str() );
1360 cur_fdm_state = new FGExternalNet( dt, host, port1, port2, port3 );
1361 } else if ( model.find("pipe") == 0 ) {
1362 // /* old */ string pipe_path = model.substr(5);
1363 // /* old */ cur_fdm_state = new FGExternalPipe( dt, pipe_path );
1364 string pipe_path = "";
1365 string pipe_protocol = "";
1366 string pipe_options = model.substr(5);
1367 string::size_type begin, end;
1370 end = pipe_options.find( ",", begin );
1371 if ( end != string::npos ) {
1372 pipe_path = pipe_options.substr(begin, end - begin);
1375 // protocol (last option)
1376 pipe_protocol = pipe_options.substr(begin);
1377 cur_fdm_state = new FGExternalPipe( dt, pipe_path, pipe_protocol );
1378 } else if ( model == "null" ) {
1379 cur_fdm_state = new FGNullFDM( dt );
1380 } else if ( model == "yasim" ) {
1381 cur_fdm_state = new YASim( dt );
1383 SG_LOG(SG_GENERAL, SG_ALERT,
1384 "Unrecognized flight model '" << model
1385 << "', cannot init flight dynamics model.");
1389 SG_LOG(SG_GENERAL, SG_ALERT, "FlightGear aborting\n\n");
1394 static void printMat(const sgVec4 *mat, char *name="")
1397 SG_LOG(SG_GENERAL, SG_BULK, name );
1398 for(i=0; i<4; i++) {
1399 SG_LOG(SG_GENERAL, SG_BULK, " " << mat[i][0] << " " << mat[i][1]
1400 << " " << mat[i][2] << " " << mat[i][3] );
1404 // Initialize view parameters
1406 // force update of model so that viewer can get some data...
1407 globals->get_aircraft_model()->update(0);
1408 // run update for current view so that data is current...
1409 globals->get_viewmgr()->update(0);
1411 printMat(globals->get_current_view()->get_VIEW(),"VIEW");
1412 printMat(globals->get_current_view()->get_UP(),"UP");
1413 // printMat(globals->get_current_view()->get_LOCAL(),"LOCAL");
1418 SGTime *fgInitTime() {
1420 static const SGPropertyNode *longitude
1421 = fgGetNode("/position/longitude-deg");
1422 static const SGPropertyNode *latitude
1423 = fgGetNode("/position/latitude-deg");
1424 static const SGPropertyNode *cur_time_override
1425 = fgGetNode("/sim/time/cur-time-override", true);
1427 SGPath zone( globals->get_fg_root() );
1428 zone.append( "Timezone" );
1429 SGTime *t = new SGTime( longitude->getDoubleValue()
1430 * SGD_DEGREES_TO_RADIANS,
1431 latitude->getDoubleValue()
1432 * SGD_DEGREES_TO_RADIANS,
1434 cur_time_override->getLongValue() );
1436 globals->set_warp_delta( 0 );
1438 t->update( 0.0, 0.0,
1439 cur_time_override->getLongValue(),
1440 globals->get_warp() );
1446 // set up a time offset (aka warp) if one is specified
1447 void fgInitTimeOffset() {
1448 static const SGPropertyNode *longitude
1449 = fgGetNode("/position/longitude-deg");
1450 static const SGPropertyNode *latitude
1451 = fgGetNode("/position/latitude-deg");
1452 static const SGPropertyNode *cur_time_override
1453 = fgGetNode("/sim/time/cur-time-override", true);
1455 // Handle potential user specified time offsets
1456 int orig_warp = globals->get_warp();
1457 SGTime *t = globals->get_time_params();
1458 time_t cur_time = t->get_cur_time();
1459 time_t currGMT = sgTimeGetGMT( gmtime(&cur_time) );
1460 time_t systemLocalTime = sgTimeGetGMT( localtime(&cur_time) );
1461 time_t aircraftLocalTime =
1462 sgTimeGetGMT( fgLocaltime(&cur_time, t->get_zonename() ) );
1464 // Okay, we now have several possible scenarios
1465 int offset = fgGetInt("/sim/startup/time-offset");
1466 string offset_type = fgGetString("/sim/startup/time-offset-type");
1469 if ( offset_type == "real" ) {
1471 } else if ( offset_type == "dawn" ) {
1472 warp = fgTimeSecondsUntilSunAngle( cur_time,
1473 longitude->getDoubleValue()
1474 * SGD_DEGREES_TO_RADIANS,
1475 latitude->getDoubleValue()
1476 * SGD_DEGREES_TO_RADIANS,
1478 } else if ( offset_type == "morning" ) {
1479 warp = fgTimeSecondsUntilSunAngle( cur_time,
1480 longitude->getDoubleValue()
1481 * SGD_DEGREES_TO_RADIANS,
1482 latitude->getDoubleValue()
1483 * SGD_DEGREES_TO_RADIANS,
1485 } else if ( offset_type == "noon" ) {
1486 warp = fgTimeSecondsUntilSunAngle( cur_time,
1487 longitude->getDoubleValue()
1488 * SGD_DEGREES_TO_RADIANS,
1489 latitude->getDoubleValue()
1490 * SGD_DEGREES_TO_RADIANS,
1492 } else if ( offset_type == "afternoon" ) {
1493 warp = fgTimeSecondsUntilSunAngle( cur_time,
1494 longitude->getDoubleValue()
1495 * SGD_DEGREES_TO_RADIANS,
1496 latitude->getDoubleValue()
1497 * SGD_DEGREES_TO_RADIANS,
1499 } else if ( offset_type == "dusk" ) {
1500 warp = fgTimeSecondsUntilSunAngle( cur_time,
1501 longitude->getDoubleValue()
1502 * SGD_DEGREES_TO_RADIANS,
1503 latitude->getDoubleValue()
1504 * SGD_DEGREES_TO_RADIANS,
1506 } else if ( offset_type == "evening" ) {
1507 warp = fgTimeSecondsUntilSunAngle( cur_time,
1508 longitude->getDoubleValue()
1509 * SGD_DEGREES_TO_RADIANS,
1510 latitude->getDoubleValue()
1511 * SGD_DEGREES_TO_RADIANS,
1513 } else if ( offset_type == "midnight" ) {
1514 warp = fgTimeSecondsUntilSunAngle( cur_time,
1515 longitude->getDoubleValue()
1516 * SGD_DEGREES_TO_RADIANS,
1517 latitude->getDoubleValue()
1518 * SGD_DEGREES_TO_RADIANS,
1520 } else if ( offset_type == "system-offset" ) {
1522 } else if ( offset_type == "gmt-offset" ) {
1523 warp = offset - (currGMT - systemLocalTime);
1524 } else if ( offset_type == "latitude-offset" ) {
1525 warp = offset - (aircraftLocalTime - systemLocalTime);
1526 } else if ( offset_type == "system" ) {
1527 warp = offset - cur_time;
1528 } else if ( offset_type == "gmt" ) {
1529 warp = offset - currGMT;
1530 } else if ( offset_type == "latitude" ) {
1531 warp = offset - (aircraftLocalTime - systemLocalTime) - cur_time;
1533 SG_LOG( SG_GENERAL, SG_ALERT,
1534 "FG_TIME::Unsupported offset type " << offset_type );
1537 globals->set_warp( orig_warp + warp );
1538 t->update( longitude->getDoubleValue() * SGD_DEGREES_TO_RADIANS,
1539 latitude->getDoubleValue() * SGD_DEGREES_TO_RADIANS,
1540 cur_time_override->getLongValue(),
1541 globals->get_warp() );
1543 SG_LOG( SG_GENERAL, SG_INFO, "After fgInitTimeOffset(): warp = "
1544 << globals->get_warp() );
1548 // This is the top level init routine which calls all the other
1549 // initialization routines. If you are adding a subsystem to flight
1550 // gear, its initialization call should located in this routine.
1551 // Returns non-zero if a problem encountered.
1552 bool fgInitSubsystems() {
1553 // static const SGPropertyNode *longitude
1554 // = fgGetNode("/sim/presets/longitude-deg");
1555 // static const SGPropertyNode *latitude
1556 // = fgGetNode("/sim/presets/latitude-deg");
1557 // static const SGPropertyNode *altitude
1558 // = fgGetNode("/sim/presets/altitude-ft");
1559 SG_LOG( SG_GENERAL, SG_INFO, "Initialize Subsystems");
1560 SG_LOG( SG_GENERAL, SG_INFO, "========== ==========");
1562 ////////////////////////////////////////////////////////////////////
1563 // Initialize the event manager subsystem.
1564 ////////////////////////////////////////////////////////////////////
1566 globals->get_event_mgr()->init();
1567 globals->get_event_mgr()->setRealtimeProperty(fgGetNode("/sim/time/delta-realtime-sec", true));
1569 ////////////////////////////////////////////////////////////////////
1570 // Initialize the property interpolator subsystem
1571 ////////////////////////////////////////////////////////////////////
1572 globals->add_subsystem("interpolator", new SGInterpolator);
1575 ////////////////////////////////////////////////////////////////////
1576 // Add the FlightGear property utilities.
1577 ////////////////////////////////////////////////////////////////////
1578 globals->add_subsystem("properties", new FGProperties);
1580 ////////////////////////////////////////////////////////////////////
1581 // Initialize the material property subsystem.
1582 ////////////////////////////////////////////////////////////////////
1584 SGPath mpath( globals->get_fg_root() );
1585 mpath.append( "materials.xml" );
1586 string season = fgGetString("/sim/startup/season", "summer");
1587 if ( ! globals->get_matlib()->load(globals->get_fg_root(), mpath.str(), season.c_str()) ) {
1588 SG_LOG( SG_GENERAL, SG_ALERT, "Error loading material lib!" );
1593 ////////////////////////////////////////////////////////////////////
1594 // Initialize the scenery management subsystem.
1595 ////////////////////////////////////////////////////////////////////
1597 if ( globals->get_tile_mgr()->init() ) {
1598 // Load the local scenery data
1599 double visibility_meters = fgGetDouble("/environment/visibility-m");
1601 globals->get_tile_mgr()->update( visibility_meters );
1603 SG_LOG( SG_GENERAL, SG_ALERT, "Error in Tile Manager initialization!" );
1607 // cause refresh of viewer scenery timestamps every 15 seconds...
1608 globals->get_event_mgr()->addTask( "FGTileMgr::refresh_view_timestamps()",
1609 globals->get_tile_mgr(),
1610 &FGTileMgr::refresh_view_timestamps,
1614 ////////////////////////////////////////////////////////////////////
1615 // Initialize the flight model subsystem.
1616 ////////////////////////////////////////////////////////////////////
1620 // allocates structures so must happen before any of the flight
1621 // model or control parameters are set
1622 fgAircraftInit(); // In the future this might not be the case.
1625 ////////////////////////////////////////////////////////////////////
1626 // Initialize the XML Autopilot subsystem.
1627 ////////////////////////////////////////////////////////////////////
1629 globals->add_subsystem( "xml-autopilot", new FGXMLAutopilot );
1630 globals->add_subsystem( "route-manager", new FGRouteMgr );
1633 ////////////////////////////////////////////////////////////////////
1634 // Initialize the view manager subsystem.
1635 ////////////////////////////////////////////////////////////////////
1639 ////////////////////////////////////////////////////////////////////
1640 // Create and register the logger.
1641 ////////////////////////////////////////////////////////////////////
1643 globals->add_subsystem("logger", new FGLogger);
1645 ////////////////////////////////////////////////////////////////////
1646 // Create and register the XML GUI.
1647 ////////////////////////////////////////////////////////////////////
1649 globals->add_subsystem("gui", new NewGUI, SGSubsystemMgr::INIT);
1652 ////////////////////////////////////////////////////////////////////
1653 // Initialize the local time subsystem.
1654 ////////////////////////////////////////////////////////////////////
1656 // update the current timezone each 30 minutes
1657 globals->get_event_mgr()->addTask( "fgUpdateLocalTime()",
1658 &fgUpdateLocalTime, 30*60 );
1659 fgInitTimeOffset(); // the environment subsystem needs this
1662 ////////////////////////////////////////////////////////////////////
1663 // Initialize the weather subsystem.
1664 ////////////////////////////////////////////////////////////////////
1666 // Initialize the weather modeling subsystem
1667 globals->add_subsystem("environment", new FGEnvironmentMgr);
1670 ////////////////////////////////////////////////////////////////////
1671 // Initialize the lighting subsystem.
1672 ////////////////////////////////////////////////////////////////////
1674 globals->add_subsystem("lighting", new FGLight);
1676 //////////////////////////////////////////////////////////////////////
1677 // Initialize the 2D cloud subsystem.
1678 ////////////////////////////////////////////////////////////////////
1679 fgGetBool("/sim/rendering/bump-mapping", false);
1681 #ifdef ENABLE_AUDIO_SUPPORT
1682 ////////////////////////////////////////////////////////////////////
1683 // Initialize the sound subsystem.
1684 ////////////////////////////////////////////////////////////////////
1686 init_volume = fgGetFloat("/sim/sound/volume");
1687 fgSetFloat("/sim/sound/volume", 0.0f);
1688 globals->set_soundmgr(new SGSoundMgr);
1689 globals->get_soundmgr()->init();
1690 globals->get_soundmgr()->bind();
1693 ////////////////////////////////////////////////////////////////////
1694 // Initialize the sound-effects subsystem.
1695 ////////////////////////////////////////////////////////////////////
1697 globals->add_subsystem("fx", new FGFX);
1698 globals->add_subsystem("voice", new FGVoiceMgr);
1701 ////////////////////////////////////////////////////////////////////
1702 // Initialise ATC display system
1703 ////////////////////////////////////////////////////////////////////
1705 SG_LOG(SG_GENERAL, SG_INFO, " ATC Display");
1706 globals->set_ATC_display(new FGATCDisplay);
1707 globals->get_ATC_display()->init();
1709 ////////////////////////////////////////////////////////////////////
1710 // Initialise the ATC Manager
1711 ////////////////////////////////////////////////////////////////////
1713 SG_LOG(SG_GENERAL, SG_INFO, " ATC Manager");
1714 globals->set_ATC_mgr(new FGATCMgr);
1715 globals->get_ATC_mgr()->init();
1717 ////////////////////////////////////////////////////////////////////
1718 // Initialise the AI Manager
1719 ////////////////////////////////////////////////////////////////////
1721 SG_LOG(SG_GENERAL, SG_INFO, " AI Manager");
1722 globals->set_AI_mgr(new FGAIMgr);
1723 globals->get_AI_mgr()->init();
1725 ////////////////////////////////////////////////////////////////////
1726 // Initialise the AI Model Manager
1727 ////////////////////////////////////////////////////////////////////
1728 SG_LOG(SG_GENERAL, SG_INFO, " AI Model Manager");
1729 globals->add_subsystem("ai_model", new FGAIManager);
1730 globals->add_subsystem("submodel_mgr", new FGSubmodelMgr);
1733 // It's probably a good idea to initialize the top level traffic manager
1734 // After the AI and ATC systems have been initialized properly.
1735 // AI Traffic manager
1736 globals->add_subsystem("Traffic Manager", new FGTrafficManager);
1737 FGTrafficManager *dispatcher =
1738 (FGTrafficManager*) globals->get_subsystem("Traffic Manager");
1739 SGPath path = globals->get_fg_root();
1740 path.append("/Traffic/fgtraffic.xml");
1743 //globals->get_subsystem("Traffic Manager")->init();
1745 globals->add_subsystem("instrumentation", new FGInstrumentMgr);
1746 globals->add_subsystem("systems", new FGSystemMgr);
1750 ////////////////////////////////////////////////////////////////////
1751 // Initialize the cockpit subsystem
1752 ////////////////////////////////////////////////////////////////////
1753 if( fgCockpitInit( ¤t_aircraft )) {
1754 // Cockpit initialized ok.
1756 SG_LOG( SG_GENERAL, SG_ALERT, "Error in Cockpit initialization!" );
1761 ////////////////////////////////////////////////////////////////////
1762 // Initialize the autopilot subsystem.
1763 ////////////////////////////////////////////////////////////////////
1765 // FIXME: these should go in the
1766 // GUI initialization code, not here.
1767 // fgAPAdjustInit();
1768 NewTgtAirportInit();
1772 ////////////////////////////////////////////////////////////////////
1773 // Initialize I/O subsystem.
1774 ////////////////////////////////////////////////////////////////////
1776 globals->get_io()->init();
1777 globals->get_io()->bind();
1780 ////////////////////////////////////////////////////////////////////
1781 // Add a new 2D panel.
1782 ////////////////////////////////////////////////////////////////////
1784 string panel_path = fgGetString("/sim/panel/path",
1785 "Panels/Default/default.xml");
1787 globals->set_current_panel( fgReadPanel(panel_path) );
1788 if (globals->get_current_panel() == 0) {
1789 SG_LOG( SG_INPUT, SG_ALERT,
1790 "Error reading new panel from " << panel_path );
1792 SG_LOG( SG_INPUT, SG_INFO, "Loaded new panel from " << panel_path );
1793 globals->get_current_panel()->init();
1794 globals->get_current_panel()->bind();
1798 ////////////////////////////////////////////////////////////////////
1799 // Initialize the controls subsystem.
1800 ////////////////////////////////////////////////////////////////////
1802 globals->get_controls()->init();
1803 globals->get_controls()->bind();
1806 ////////////////////////////////////////////////////////////////////
1807 // Initialize the input subsystem.
1808 ////////////////////////////////////////////////////////////////////
1810 globals->add_subsystem("input", new FGInput);
1813 ////////////////////////////////////////////////////////////////////
1814 // Initialize the replay subsystem
1815 ////////////////////////////////////////////////////////////////////
1816 globals->add_subsystem("replay", new FGReplay);
1818 ////////////////////////////////////////////////////////////////////
1819 // Bind and initialize subsystems.
1820 ////////////////////////////////////////////////////////////////////
1822 globals->get_subsystem_mgr()->bind();
1823 globals->get_subsystem_mgr()->init();
1825 ////////////////////////////////////////////////////////////////////
1826 // Initialize multiplayer subsystem
1827 ////////////////////////////////////////////////////////////////////
1829 globals->set_multiplayer_mgr(new FGMultiplayMgr);
1830 globals->get_multiplayer_mgr()->init();
1832 ////////////////////////////////////////////////////////////////////////
1833 // Initialize the Nasal interpreter.
1834 // Do this last, so that the loaded scripts see initialized state
1835 ////////////////////////////////////////////////////////////////////////
1836 FGNasalSys* nasal = new FGNasalSys();
1837 globals->add_subsystem("nasal", nasal);
1840 ////////////////////////////////////////////////////////////////////
1841 // At this point we could try and parse the waypoint options
1842 ///////////////////////////////////////////////////////////////////
1845 // initialize methods that depend on other subsystems.
1846 globals->get_subsystem_mgr()->postinit();
1848 ////////////////////////////////////////////////////////////////////////
1849 // End of subsystem initialization.
1850 ////////////////////////////////////////////////////////////////////
1852 SG_LOG( SG_GENERAL, SG_INFO, endl);
1854 // Save the initial state for future
1856 globals->saveInitialState();
1862 void fgReInitSubsystems()
1864 // static const SGPropertyNode *longitude
1865 // = fgGetNode("/sim/presets/longitude-deg");
1866 // static const SGPropertyNode *latitude
1867 // = fgGetNode("/sim/presets/latitude-deg");
1868 static const SGPropertyNode *altitude
1869 = fgGetNode("/sim/presets/altitude-ft");
1870 static const SGPropertyNode *master_freeze
1871 = fgGetNode("/sim/freeze/master");
1873 SG_LOG( SG_GENERAL, SG_INFO,
1874 "fgReInitSubsystems(): /position/altitude = "
1875 << altitude->getDoubleValue() );
1877 bool freeze = master_freeze->getBoolValue();
1879 fgSetBool("/sim/freeze/master", true);
1881 fgSetBool("/sim/crashed", false);
1883 // Force reupdating the positions of the ai 3d models. They are used for
1884 // initializing ground level for the FDM.
1885 globals->get_subsystem("ai_model")->reinit();
1887 // Initialize the FDM
1890 // allocates structures so must happen before any of the flight
1891 // model or control parameters are set
1892 fgAircraftInit(); // In the future this might not be the case.
1894 // reload offsets from config defaults
1895 globals->get_viewmgr()->reinit();
1899 globals->get_controls()->reset_all();
1901 fgUpdateLocalTime();
1903 // re-init to proper time of day setting
1907 fgSetBool("/sim/freeze/master", false);
1909 fgSetBool("/sim/sceneryloaded",false);