1 // options.cxx -- class to handle command line options
3 // Written by Curtis Olson, started April 1998.
5 // Copyright (C) 1998 Curtis L. Olson - curt@me.umn.edu
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., 675 Mass Ave, Cambridge, MA 02139, USA.
28 #if defined(FX) && defined(XMESA)
29 bool global_fullscreen = true;
32 #include <Include/compiler.h>
34 #include <math.h> // rint()
36 #include <stdlib.h> // atof(), atoi()
41 #include <Debug/logstream.hxx>
42 #include <Misc/fgstream.hxx>
43 #include <Include/fg_constants.h>
44 #include <Include/general.hxx>
45 #include <Cockpit/cockpit.hxx>
46 #include <FDM/flight.hxx>
48 # include <Network/network.h>
50 #include <Time/fg_time.hxx>
52 #include "options.hxx"
55 FG_USING_NAMESPACE(std);
58 extern void fgReshape( int width, int height );
61 atof( const string& str )
65 // -dw- if ::atof is called, then we get an infinite loop
66 return std::atof( str.c_str() );
68 return ::atof( str.c_str() );
73 atoi( const string& str )
76 // -dw- if ::atoi is called, then we get an infinite loop
77 return std::atoi( str.c_str() );
79 return ::atoi( str.c_str() );
83 // Defined the shared options class here
84 fgOPTIONS current_options;
88 fgOPTIONS::fgOPTIONS() :
89 // starting longitude in degrees (west = -)
90 // starting latitude in degrees (south = -)
92 // Default initial position is Globe, AZ (P13)
96 // North of the city of Globe
100 // North of the city of Globe
104 // Near where I used to live in Globe, AZ
108 // 10125 Jewell St. NE
112 // Near KHSP (Hot Springs, VA)
113 // lon(-79.8338964 + 0.01),
114 // lat( 37.9514564 + 0.008),
116 // (SEZ) SEDONA airport
117 // lon(-111.7884614 + 0.01),
118 // lat( 34.8486289 - 0.015),
120 // Jim Brennon's Kingmont Observatory
121 // lon(-121.1131667),
124 // Huaras, Peru (S09d 31.871' W077d 31.498')
128 // Eclipse Watching w73.5 n10 (approx) 18:00 UT
133 // lon(-90.1953055556),
134 // lat( 45.4511388889),
136 // starting altitude in meters (this will be reset to ground level
137 // if it is lower than the terrain
140 // Initial Orientation
141 heading(270.0), // heading (yaw) angle in degress (Psi)
142 roll(0.0), // roll angle in degrees (Phi)
143 pitch(0.424), // pitch angle in degrees (Theta)
145 // Initialize current options velocities to 0.0
146 uBody(0.0), vBody(0.0), wBody(0.0),
154 control_mode(FG_JOYSTICK),
155 auto_coordination(FG_AUTO_COORD_NOT_SPECIFIED),
162 // Flight Model options
163 flight_model( FGInterface::FG_LARCSIM ),
165 model_hz( NEW_DEFAULT_MODEL_HZ ),
169 fog(FG_FOG_NICEST), // nicest
171 clouds_asl(5000*FEET_TO_METER),
180 view_mode(FG_VIEW_PILOT),
186 units(FG_UNITS_FEET),
192 // set initial values/defaults
193 time_offset_type=FG_TIME_SYS_OFFSET;
194 char* envp = ::getenv( "FG_ROOT" );
196 if ( envp != NULL ) {
197 // fg_root could be anywhere, so default to environmental
198 // variable $FG_ROOT if it is set.
201 // Otherwise, default to a random compiled in location if
202 // $FG_ROOT is not set. This can still be overridden from the
203 // command line or a config file.
206 fg_root = "\\FlightGear";
207 #elif defined( MACOS )
214 airport_id = ""; // default airport id
215 net_id = "Johnney"; // default pilot's name
217 // initialize port config string list
218 channel_options_list.clear();
222 fgOPTIONS::toggle_panel() {
224 FGTime *t = FGTime::cur_time_params;
226 int toggle_pause = t->getPause();
229 t->togglePauseMode();
232 panel_status = false;
236 if ( panel_status ) {
237 if( FGPanel::OurPanel == 0)
241 fov *= (1.0 / 0.4232);
243 fgReshape( xsize, ysize);
246 t->togglePauseMode();
250 fgOPTIONS::parse_time(const string& time_in) {
251 char *time_str, num[256];
252 double hours, minutes, seconds;
257 time_str = (char *)time_in.c_str();
259 // printf("parse_time(): %s\n", time_str);
262 if ( strlen(time_str) ) {
263 if ( time_str[0] == '+' ) {
266 } else if ( time_str[0] == '-' ) {
271 // printf("sign = %d\n", sign);
274 if ( strlen(time_str) ) {
276 while ( (time_str[0] != ':') && (time_str[0] != '\0') ) {
277 num[i] = time_str[0];
281 if ( time_str[0] == ':' ) {
286 // printf("hours = %.2lf\n", hours);
292 if ( strlen(time_str) ) {
294 while ( (time_str[0] != ':') && (time_str[0] != '\0') ) {
295 num[i] = time_str[0];
299 if ( time_str[0] == ':' ) {
304 // printf("minutes = %.2lf\n", minutes);
306 result += minutes / 60.0;
310 if ( strlen(time_str) ) {
312 while ( (time_str[0] != ':') && (time_str[0] != '\0') ) {
313 num[i] = time_str[0];
319 // printf("seconds = %.2lf\n", seconds);
321 result += seconds / 3600.0;
324 return(sign * result);
328 long int fgOPTIONS::parse_date( const string& date)
331 char * date_str, num[256];
333 // initialize to zero
340 gmt.tm_isdst = 0; // ignore daylight savings time for the moment
341 date_str = (char *)date.c_str();
343 if ( strlen(date_str) ) {
345 while ( (date_str[0] != ':') && (date_str[0] != '\0') ) {
346 num[i] = date_str[0];
350 if ( date_str[0] == ':' ) {
354 gmt.tm_year = atoi(num) - 1900;
357 if ( strlen(date_str) ) {
359 while ( (date_str[0] != ':') && (date_str[0] != '\0') ) {
360 num[i] = date_str[0];
364 if ( date_str[0] == ':' ) {
368 gmt.tm_mon = atoi(num) -1;
371 if ( strlen(date_str) ) {
373 while ( (date_str[0] != ':') && (date_str[0] != '\0') ) {
374 num[i] = date_str[0];
378 if ( date_str[0] == ':' ) {
382 gmt.tm_mday = atoi(num);
385 if ( strlen(date_str) ) {
387 while ( (date_str[0] != ':') && (date_str[0] != '\0') ) {
388 num[i] = date_str[0];
392 if ( date_str[0] == ':' ) {
396 gmt.tm_hour = atoi(num);
399 if ( strlen(date_str) ) {
401 while ( (date_str[0] != ':') && (date_str[0] != '\0') ) {
402 num[i] = date_str[0];
406 if ( date_str[0] == ':' ) {
410 gmt.tm_min = atoi(num);
413 if ( strlen(date_str) ) {
415 while ( (date_str[0] != ':') && (date_str[0] != '\0') ) {
416 num[i] = date_str[0];
420 if ( date_str[0] == ':' ) {
424 gmt.tm_sec = atoi(num);
426 time_t theTime = FGTime::cur_time_params->get_gmt(gmt.tm_year,
432 //printf ("Date is %s\n", ctime(&theTime));
433 //printf ("in seconds that is %d\n", theTime);
439 // parse degree in the form of [+/-]hhh:mm:ss
440 void fgOPTIONS::parse_control( const string& mode ) {
441 if ( mode == "joystick" ) {
442 control_mode = FG_JOYSTICK;
443 } else if ( mode == "mouse" ) {
444 control_mode = FG_MOUSE;
446 control_mode = FG_KEYBOARD;
451 /// parse degree in the form of [+/-]hhh:mm:ss
453 fgOPTIONS::parse_degree( const string& degree_str) {
454 double result = parse_time( degree_str );
456 // printf("Degree = %.4f\n", result);
462 // parse time offset command line option
464 fgOPTIONS::parse_time_offset( const string& time_str) {
467 // printf("time offset = %s\n", time_str);
470 result = (int)rint(parse_time(time_str) * 3600.0);
472 result = (int)(parse_time(time_str) * 3600.0);
475 // printf("parse_time_offset(): %d\n", result);
481 // Parse --tile-diameter=n type option
484 fgOPTIONS::parse_tile_radius( const string& arg ) {
485 int radius = atoi( arg );
487 if ( radius < FG_RADIUS_MIN ) { radius = FG_RADIUS_MIN; }
488 if ( radius > FG_RADIUS_MAX ) { radius = FG_RADIUS_MAX; }
490 // printf("parse_tile_radius(): radius = %d\n", radius);
496 // Parse --fdm=abcdefg type option
498 fgOPTIONS::parse_fdm( const string& fm ) {
499 // cout << "fdm = " << fm << endl;
501 if ( fm == "balloon" ) {
502 return FGInterface::FG_BALLOONSIM;
503 } else if ( fm == "external" ) {
504 return FGInterface::FG_EXTERNAL;
505 } else if ( fm == "jsb" ) {
506 return FGInterface::FG_JSBSIM;
507 } else if ( (fm == "larcsim") || (fm == "LaRCsim") ) {
508 return FGInterface::FG_LARCSIM;
509 } else if ( fm == "magic" ) {
510 return FGInterface::FG_MAGICCARPET;
512 FG_LOG( FG_GENERAL, FG_ALERT, "Unknown fdm = " << fm );
516 // we'll never get here, but it makes the compiler happy.
521 // Parse --fov=x.xx type option
523 fgOPTIONS::parse_fov( const string& arg ) {
524 double fov = atof(arg);
526 if ( fov < FG_FOV_MIN ) { fov = FG_FOV_MIN; }
527 if ( fov > FG_FOV_MAX ) { fov = FG_FOV_MAX; }
529 // printf("parse_fov(): result = %.4f\n", fov);
535 // Parse I/O channel option
537 // Format is "--protocol=medium,direction,hz,medium_options,..."
539 // protocol = { native, nmea, garmin, fgfs, rul, pve, etc. }
540 // medium = { serial, socket, file, etc. }
541 // direction = { in, out, bi }
542 // hz = number of times to process channel per second (floating
543 // point values are ok.
545 // Serial example "--nmea=serial,dir,hz,device,baud" where
547 // device = OS device name of serial line to be open()'ed
548 // baud = {300, 1200, 2400, ..., 230400}
550 // Socket exacmple "--fgfs=socket,dir,hz,machine,port" where
552 // machine = machine name or ip address if client (leave empty if server)
553 // port = port, leave empty to let system choose
555 // File example "--garmin=file,dir,hz,filename" where
557 // filename = file system file name
560 fgOPTIONS::parse_channel( const string& type, const string& channel_str ) {
561 // cout << "Channel string = " << channel_str << endl;
563 channel_options_list.push_back( type + "," + channel_str );
569 // Parse a single option
570 int fgOPTIONS::parse_option( const string& arg ) {
572 if ( (arg == "--help") || (arg == "-h") ) {
573 // help/usage request
574 return(FG_OPTIONS_HELP);
575 } else if ( arg == "--disable-game-mode") {
577 } else if ( arg == "--enable-game-mode" ) {
579 } else if ( arg == "--disable-splash-screen" ) {
580 splash_screen = false;
581 } else if ( arg == "--enable-splash-screen" ) {
582 splash_screen = true;
583 } else if ( arg == "--disable-intro-music" ) {
585 } else if ( arg == "--enable-intro-music" ) {
587 } else if ( arg == "--disable-mouse-pointer" ) {
589 } else if ( arg == "--enable-mouse-pointer" ) {
591 } else if ( arg == "--disable-pause" ) {
593 } else if ( arg == "--enable-pause" ) {
595 } else if ( arg.find( "--control=") != string::npos ) {
596 parse_control( arg.substr(10) );
597 } else if ( arg == "--disable-auto-coordination" ) {
598 auto_coordination = FG_AUTO_COORD_DISABLED;
599 } else if ( arg == "--enable-auto-coordination" ) {
600 auto_coordination = FG_AUTO_COORD_ENABLED;
601 } else if ( arg == "--disable-hud" ) {
603 } else if ( arg == "--enable-hud" ) {
605 } else if ( arg == "--disable-panel" ) {
606 panel_status = false;
607 } else if ( arg == "--enable-panel" ) {
610 } else if ( arg == "--disable-sound" ) {
612 } else if ( arg == "--enable-sound" ) {
614 } else if ( arg.find( "--airport-id=") != string::npos ) {
615 airport_id = arg.substr( 13 );
616 } else if ( arg.find( "--lon=" ) != string::npos ) {
617 lon = parse_degree( arg.substr(6) );
618 } else if ( arg.find( "--lat=" ) != string::npos ) {
619 lat = parse_degree( arg.substr(6) );
620 } else if ( arg.find( "--altitude=" ) != string::npos ) {
621 if ( units == FG_UNITS_FEET ) {
622 altitude = atof( arg.substr(11) ) * FEET_TO_METER;
624 altitude = atof( arg.substr(11) );
626 } else if ( arg.find( "--uBody=" ) != string::npos ) {
627 if ( units == FG_UNITS_FEET ) {
628 uBody = atof( arg.substr(8) );
630 uBody = atof( arg.substr(8) ) * FEET_TO_METER;
632 } else if ( arg.find( "--vBody=" ) != string::npos ) {
633 if ( units == FG_UNITS_FEET ) {
634 vBody = atof( arg.substr(8) );
636 vBody = atof( arg.substr(8) ) * FEET_TO_METER;
638 } else if ( arg.find( "--wBody=" ) != string::npos ) {
639 if ( units == FG_UNITS_FEET ) {
640 wBody = atof( arg.substr(8) );
642 wBody = atof( arg.substr(8) ) * FEET_TO_METER;
644 } else if ( arg.find( "--heading=" ) != string::npos ) {
645 heading = atof( arg.substr(10) );
646 } else if ( arg.find( "--roll=" ) != string::npos ) {
647 roll = atof( arg.substr(7) );
648 } else if ( arg.find( "--pitch=" ) != string::npos ) {
649 pitch = atof( arg.substr(8) );
650 } else if ( arg.find( "--fg-root=" ) != string::npos ) {
651 fg_root = arg.substr( 10 );
652 } else if ( arg.find( "--fdm=" ) != string::npos ) {
653 flight_model = parse_fdm( arg.substr(6) );
654 } else if ( arg.find( "--aircraft=" ) != string::npos ) {
655 aircraft = arg.substr(11);
656 } else if ( arg.find( "--model-hz=" ) != string::npos ) {
657 model_hz = atoi( arg.substr(11) );
658 } else if ( arg.find( "--speed=" ) != string::npos ) {
659 speed_up = atoi( arg.substr(8) );
660 } else if ( arg == "--fog-disable" ) {
661 fog = FG_FOG_DISABLED;
662 } else if ( arg == "--fog-fastest" ) {
663 fog = FG_FOG_FASTEST;
664 } else if ( arg == "--fog-nicest" ) {
666 } else if ( arg == "--disable-clouds" ) {
668 } else if ( arg == "--enable-clouds" ) {
670 } else if ( arg.find( "--clouds-asl=" ) != string::npos ) {
671 if ( units == FG_UNITS_FEET ) {
672 clouds_asl = atof( arg.substr(13) ) * FEET_TO_METER;
674 clouds_asl = atof( arg.substr(13) );
676 } else if ( arg.find( "--fov=" ) != string::npos ) {
677 fov = parse_fov( arg.substr(6) );
678 } else if ( arg == "--disable-fullscreen" ) {
680 } else if ( arg== "--enable-fullscreen") {
682 } else if ( arg == "--shading-flat") {
684 } else if ( arg == "--shading-smooth") {
686 } else if ( arg == "--disable-skyblend") {
688 } else if ( arg== "--enable-skyblend" ) {
690 } else if ( arg == "--disable-textures" ) {
692 } else if ( arg == "--enable-textures" ) {
694 } else if ( arg == "--disable-wireframe" ) {
696 } else if ( arg == "--enable-wireframe" ) {
698 } else if ( arg.find( "--geometry=" ) != string::npos ) {
699 bool geometry_ok = true;
700 string geometry = arg.substr( 11 );
701 string::size_type i = geometry.find('x');
703 if (i != string::npos) {
704 xsize = atoi(geometry.substr(0, i));
705 ysize = atoi(geometry.substr(i+1));
706 // cout << "Geometry is " << xsize << 'x' << ysize << '\n';
711 if ( xsize <= 0 || ysize <= 0 ) {
717 if ( !geometry_ok ) {
718 FG_LOG( FG_GENERAL, FG_ALERT, "Unknown geometry: " << geometry );
719 FG_LOG( FG_GENERAL, FG_ALERT,
720 "Setting geometry to " << xsize << 'x' << ysize << '\n');
722 } else if ( arg == "--units-feet" ) {
723 units = FG_UNITS_FEET;
724 } else if ( arg == "--units-meters" ) {
725 units = FG_UNITS_METERS;
726 } else if ( arg.find( "--tile-radius=" ) != string::npos ) {
727 tile_radius = parse_tile_radius( arg.substr(14) );
728 tile_diameter = tile_radius * 2 + 1;
729 } else if ( arg.find( "--time-offset" ) != string::npos ) {
730 time_offset = parse_time_offset( (arg.substr(14)) );
731 //time_offset_type = FG_TIME_SYS_OFFSET;
732 } else if ( arg.find( "--time-match-real") != string::npos ) {
733 //time_offset = parse_time_offset(arg.substr(18));
734 time_offset_type = FG_TIME_SYS_OFFSET;
735 } else if ( arg.find( "--time-match-local") != string::npos ) {
736 //time_offset = parse_time_offset(arg.substr(18));
737 time_offset_type = FG_TIME_LAT_OFFSET;
738 } else if ( arg.find( "--start-date-sys=") != string::npos ) {
739 time_offset = parse_date( (arg.substr(17)) );
740 time_offset_type = FG_TIME_SYS_ABSOLUTE;
741 } else if ( arg.find( "--start-date-lat=") != string::npos ) {
742 time_offset = parse_date( (arg.substr(17)) );
743 time_offset_type = FG_TIME_LAT_ABSOLUTE;
744 } else if ( arg.find( "--start-date-gmt=") != string::npos ) {
745 time_offset = parse_date( (arg.substr(17)) );
746 time_offset_type = FG_TIME_GMT_ABSOLUTE;
748 } else if ( arg == "--hud-tris" ) {
750 } else if ( arg == "--hud-culled" ) {
752 } else if ( arg.find( "--native=" ) != string::npos ) {
753 parse_channel( "native", arg.substr(9) );
754 } else if ( arg.find( "--garmin=" ) != string::npos ) {
755 parse_channel( "garmin", arg.substr(9) );
756 } else if ( arg.find( "--nmea=" ) != string::npos ) {
757 parse_channel( "nmea", arg.substr(7) );
758 } else if ( arg.find( "--pve=" ) != string::npos ) {
759 parse_channel( "pve", arg.substr(6) );
760 } else if ( arg.find( "--rul=" ) != string::npos ) {
761 parse_channel( "rul", arg.substr(6) );
762 #ifdef FG_NETWORK_OLK
763 } else if ( arg == "--net-hud" ) {
765 } else if ( arg.find( "--net-id=") != string::npos ) {
766 net_id = arg.substr( 9 );
769 FG_LOG( FG_GENERAL, FG_ALERT, "Unknown option '" << arg << "'" );
770 return FG_OPTIONS_ERROR;
773 return FG_OPTIONS_OK;
777 // Parse the command line options
778 int fgOPTIONS::parse_command_line( int argc, char **argv ) {
782 FG_LOG(FG_GENERAL, FG_INFO, "Processing command line arguments");
785 FG_LOG( FG_GENERAL, FG_DEBUG, "argv[" << i << "] = " << argv[i] );
787 result = parse_option(argv[i]);
788 if ( (result == FG_OPTIONS_HELP) || (result == FG_OPTIONS_ERROR) ) {
795 return(FG_OPTIONS_OK);
799 // Parse config file options
800 int fgOPTIONS::parse_config_file( const string& path ) {
801 fg_gzifstream in( path );
803 return(FG_OPTIONS_ERROR);
805 FG_LOG( FG_GENERAL, FG_INFO, "Processing config file: " << path );
809 while ( ! in.eof() ) {
812 while ( in.get(c) && c != '\0' ) {
817 #ifdef GETLINE_NEEDS_TERMINATOR
818 getline( in, line, '\n' );
823 if ( parse_option( line ) == FG_OPTIONS_ERROR ) {
824 FG_LOG( FG_GENERAL, FG_ALERT,
825 "Config file parse error: " << path << " '"
832 return FG_OPTIONS_OK;
836 // Print usage message
837 void fgOPTIONS::usage ( void ) {
838 cout << "Usage: fg [ options ... ]" << endl;
841 cout << "General Options:" << endl;
842 cout << "\t--help -h: print usage" << endl;
843 cout << "\t--fg-root=path: specify the root path for all the data files"
845 cout << "\t--disable-game-mode: disable full-screen game mode" << endl;
846 cout << "\t--enable-game-mode: enable full-screen game mode" << endl;
847 cout << "\t--disable-splash-screen: disable splash screen" << endl;
848 cout << "\t--enable-splash-screen: enable splash screen" << endl;
849 cout << "\t--disable-intro-music: disable introduction music" << endl;
850 cout << "\t--enable-intro-music: enable introduction music" << endl;
851 cout << "\t--disable-mouse-pointer: disable extra mouse pointer" << endl;
852 cout << "\t--enable-mouse-pointer: enable extra mouse pointer (i.e. for"
854 cout << "\t\tfull screen voodoo/voodoo-II based cards.)" << endl;
855 cout << "\t--disable-pause: start out in an active state" << endl;
856 cout << "\t--enable-pause: start out in a paused state" << endl;
857 cout << "\t--control=mode: primary control mode "
858 << "(joystick, keyboard, mouse)" << endl;
861 cout << "Features:" << endl;
862 cout << "\t--disable-hud: disable heads up display" << endl;
863 cout << "\t--enable-hud: enable heads up display" << endl;
864 cout << "\t--disable-panel: disable instrument panel" << endl;
865 cout << "\t--enable-panel: enable instrumetn panel" << endl;
866 cout << "\t--disable-sound: disable sound effects" << endl;
867 cout << "\t--enable-sound: enable sound effects" << endl;
870 cout << "Flight Model:" << endl;
871 cout << "\t--fdm=abcd: selects the core flight model code." << endl;
872 cout << "\t\tcan be one of jsb, larcsim, magic, or external" << endl;
873 cout << "\t--aircraft=abcd: aircraft model to load" << endl;
874 cout << "\t--model-hz=n: run the FDM this rate (iterations per second)"
876 cout << "\t--speed=n: run the FDM this much faster than real time" << endl;
879 cout << "Initial Position and Orientation:" << endl;
880 cout << "\t--airport-id=ABCD: specify starting postion by airport id"
882 cout << "\t--lon=degrees: starting longitude in degrees (west = -)"
884 cout << "\t--lat=degrees: starting latitude in degrees (south = -)"
886 cout << "\t--altitude=feet: starting altitude in feet" << endl;
887 cout << "\t\t(unless --units-meters specified" << endl;
888 cout << "\t--heading=degrees: heading (yaw) angle in degress (Psi)"
890 cout << "\t--roll=degrees: roll angle in degrees (Phi)" << endl;
891 cout << "\t--pitch=degrees: pitch angle in degrees (Theta)" << endl;
892 cout << "\t--uBody=feet per second: velocity along the body X axis"
894 cout << "\t--vBody=feet per second: velocity along the body Y axis"
896 cout << "\t--wBody=feet per second: velocity along the body Z axis"
898 cout << "\t\t(unless --units-meters specified" << endl;
901 cout << "Rendering Options:" << endl;
902 cout << "\t--fog-disable: disable fog/haze" << endl;
903 cout << "\t--fog-fastest: enable fastest fog/haze" << endl;
904 cout << "\t--fog-nicest: enable nicest fog/haze" << endl;
905 cout << "\t--enable-clouds: enable demo cloud layer" << endl;
906 cout << "\t--disable-clouds: disable demo cloud layer" << endl;
907 cout << "\t--clouds-asl=xxx: specify altitude of cloud layer above sea level" << endl;
908 cout << "\t--fov=xx.x: specify initial field of view angle in degrees"
910 cout << "\t--disable-fullscreen: disable fullscreen mode" << endl;
911 cout << "\t--enable-fullscreen: enable fullscreen mode" << endl;
912 cout << "\t--shading-flat: enable flat shading" << endl;
913 cout << "\t--shading-smooth: enable smooth shading" << endl;
914 cout << "\t--disable-skyblend: disable sky blending" << endl;
915 cout << "\t--enable-skyblend: enable sky blending" << endl;
916 cout << "\t--disable-textures: disable textures" << endl;
917 cout << "\t--enable-textures: enable textures" << endl;
918 cout << "\t--disable-wireframe: disable wireframe drawing mode" << endl;
919 cout << "\t--enable-wireframe: enable wireframe drawing mode" << endl;
920 cout << "\t--geometry=WWWxHHH: window geometry: 640x480, 800x600, etc."
924 cout << "Scenery Options:" << endl;
925 cout << "\t--tile-radius=n: specify tile radius, must be 1 - 4" << endl;
928 cout << "Hud Options:" << endl;
929 cout << "\t--units-feet: Hud displays units in feet" << endl;
930 cout << "\t--units-meters: Hud displays units in meters" << endl;
931 cout << "\t--hud-tris: Hud displays number of triangles rendered" << endl;
932 cout << "\t--hud-culled: Hud displays percentage of triangles culled"
936 cout << "Time Options:" << endl;
937 cout << "\t--time-offset=[+-]hh:mm:ss: add this time offset" << endl;
938 cout << "\t--time-match-real: Synchronize real-world and FlightGear" << endl
939 << "\t\ttime. Can be used in combination with --time-offset." << endl;
940 cout << "\t--time-match-local:Synchronize local real-world and " << endl
941 << "\t\tFlightGear time" << endl;
942 cout << "\t--start-date-sys=yyyy:mm:dd:hh:mm:ss: specify a starting" << endl
943 << "\t\tdate/time. Uses your system time " << endl;
944 cout << "\t--start-date-gmt=yyyy:mm:dd:hh:mm:ss: specify a starting" << endl
945 << "\t\tdate/time. Uses Greenwich Mean Time" << endl;
946 cout << "\t--start-date-lat=yyyy:mm:dd:hh:mm:ss: specify a starting" << endl
947 << "\t\tdate/time. Uses Local Aircraft Time" << endl;
948 #ifdef FG_NETWORK_OLK
951 cout << "Network Options:" << endl;
952 cout << "\t--net-hud: Hud displays network info" << endl;
953 cout << "\t--net-id=name: specify your own callsign" << endl;
959 fgOPTIONS::~fgOPTIONS( void ) {