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 #include <simgear/compiler.h>
29 #include <simgear/misc/exception.hxx>
30 #include <simgear/debug/logstream.hxx>
32 #include <math.h> // rint()
34 #include <stdlib.h> // atof(), atoi()
35 #include <string.h> // strcmp()
42 #include <simgear/math/sg_random.h>
43 #include <simgear/misc/sgstream.hxx>
44 #include <simgear/misc/sg_path.hxx>
45 #include <simgear/route/route.hxx>
46 #include <simgear/route/waypoint.hxx>
48 // #include <Include/general.hxx>
49 // #include <Airports/simple.hxx>
50 // #include <Cockpit/cockpit.hxx>
51 // #include <FDM/flight.hxx>
52 // #include <FDM/UIUCModel/uiuc_aircraftdir.h>
54 # include <NetworkOLK/network.h>
59 #include "globals.hxx"
60 #include "fg_init.hxx"
61 #include "fg_props.hxx"
62 #include "options.hxx"
63 #include "viewmgr.hxx"
68 SG_USING_NAMESPACE(std);
71 #define NEW_DEFAULT_MODEL_HZ 120
78 FG_OPTIONS_VERBOSE_HELP = 3,
79 FG_OPTIONS_SHOW_AIRCRAFT = 4
83 atof( const string& str )
87 // -dw- if ::atof is called, then we get an infinite loop
88 return std::atof( str.c_str() );
90 return ::atof( str.c_str() );
95 atoi( const string& str )
98 // -dw- if ::atoi is called, then we get an infinite loop
99 return std::atoi( str.c_str() );
101 return ::atoi( str.c_str() );
107 * Set a few fail-safe default property values.
109 * These should all be set in $FG_ROOT/preferences.xml, but just
110 * in case, we provide some initial sane values here. This method
111 * should be invoked *before* reading any init files.
116 // set a possibly independent location for scenery data
117 char *envp = ::getenv( "FG_SCENERY" );
119 if ( envp != NULL ) {
120 // fg_root could be anywhere, so default to environmental
121 // variable $FG_ROOT if it is set.
122 globals->set_fg_scenery(envp);
124 // Otherwise, default to Scenery being in $FG_ROOT/Scenery
125 globals->set_fg_scenery("");
127 // Position (deliberately out of range)
128 fgSetDouble("/position/longitude-deg", 9999.0);
129 fgSetDouble("/position/latitude-deg", 9999.0);
130 fgSetDouble("/position/altitude-ft", -9999.0);
133 fgSetDouble("/orientation/heading-deg", 270);
134 fgSetDouble("/orientation/roll-deg", 0);
135 fgSetDouble("/orientation/pitch-deg", 0.424);
138 fgSetDouble("/velocities/uBody-fps", 0.0);
139 fgSetDouble("/velocities/vBody-fps", 0.0);
140 fgSetDouble("/velocities/wBody-fps", 0.0);
141 fgSetDouble("/velocities/speed-north-fps", 0.0);
142 fgSetDouble("/velocities/speed-east-fps", 0.0);
143 fgSetDouble("/velocities/speed-down-fps", 0.0);
144 fgSetDouble("/velocities/airspeed-kt", 0.0);
145 fgSetDouble("/velocities/mach", 0.0);
148 fgSetDouble("/sim/presets/longitude-deg", 9999.0);
149 fgSetDouble("/sim/presets/latitude-deg", 9999.0);
150 fgSetDouble("/sim/presets/altitude-ft", -9999.0);
152 fgSetDouble("/sim/presets/heading-deg", 270);
153 fgSetDouble("/sim/presets/roll-deg", 0);
154 fgSetDouble("/sim/presets/pitch-deg", 0.424);
156 fgSetString("/sim/presets/speed-set", "knots");
157 fgSetDouble("/sim/presets/airspeed-kt", 0.0);
158 fgSetDouble("/sim/presets/mach", 0.0);
159 fgSetDouble("/sim/presets/uBody-fps", 0.0);
160 fgSetDouble("/sim/presets/vBody-fps", 0.0);
161 fgSetDouble("/sim/presets/wBody-fps", 0.0);
162 fgSetDouble("/sim/presets/speed-north-fps", 0.0);
163 fgSetDouble("/sim/presets/speed-east-fps", 0.0);
164 fgSetDouble("/sim/presets/speed-down-fps", 0.0);
166 fgSetBool("/sim/presets/onground", true);
167 fgSetBool("/sim/presets/trim", false);
170 fgSetBool("/sim/startup/game-mode", false);
171 fgSetBool("/sim/startup/splash-screen", true);
172 fgSetBool("/sim/startup/intro-music", true);
173 // we want mouse-pointer to have an undefined value if nothing is
174 // specified so we can do the right thing for voodoo-1/2 cards.
175 // fgSetString("/sim/startup/mouse-pointer", "disabled");
176 fgSetString("/sim/control-mode", "joystick");
177 fgSetBool("/sim/auto-coordination", false);
179 fgSetString("/sim/startup/browser-app", "netscape");
181 fgSetString("/sim/startup/browser-app", "webrun.bat");
183 fgSetInt("/sim/log-level", SG_WARN);
186 fgSetBool("/sim/hud/visibility", false);
187 fgSetBool("/sim/panel/visibility", true);
188 fgSetBool("/sim/sound/audible", true);
189 fgSetBool("/sim/hud/antialiased", false);
191 // Flight Model options
192 fgSetString("/sim/flight-model", "jsb");
193 fgSetString("/sim/aero", "c172");
194 fgSetInt("/sim/model-hz", NEW_DEFAULT_MODEL_HZ);
195 fgSetInt("/sim/speed-up", 1);
198 fgSetString("/sim/rendering/fog", "nicest");
199 fgSetBool("/environment/clouds/status", true);
200 fgSetBool("/sim/startup/fullscreen", false);
201 fgSetBool("/sim/rendering/shading", true);
202 fgSetBool("/sim/rendering/skyblend", true);
203 fgSetBool("/sim/rendering/textures", true);
204 fgSetBool("/sim/rendering/wireframe", false);
205 fgSetBool("/sim/rendering/distance-attenuation", false);
206 fgSetInt("/sim/startup/xsize", 800);
207 fgSetInt("/sim/startup/ysize", 600);
208 fgSetInt("/sim/rendering/bits-per-pixel", 16);
209 fgSetString("/sim/view-mode", "pilot");
210 fgSetDouble("/sim/current-view/heading-offset-deg", 0);
211 fgSetDouble("/environment/visibility-m", 20000);
214 fgSetString("/sim/startup/units", "feet");
215 fgSetString("/sim/hud/frame-stat-type", "tris");
218 fgSetInt("/sim/startup/time-offset", 0);
219 fgSetString("/sim/startup/time-offset-type", "system-offset");
220 fgSetLong("/sim/time/cur-time-override", 0);
222 fgSetBool("/sim/networking/network-olk", false);
223 fgSetString("/sim/networking/call-sign", "Johnny");
226 fgSetBool("/sim/freeze/master", false);
227 fgSetBool("/sim/freeze/position", false);
228 fgSetBool("/sim/freeze/clock", false);
229 fgSetBool("/sim/freeze/fuel", false);
232 fgSetString("/sim/multiplay/callsign", "callsign");
233 fgSetString("/sim/multiplay/rxhost", "0");
234 fgSetString("/sim/multiplay/txhost", "0");
235 fgSetInt("/sim/multiplay/rxport", 0);
236 fgSetInt("/sim/multiplay/txport", 0);
243 parse_wind (const string &wind, double * min_hdg, double * max_hdg,
244 double * speed, double * gust)
246 string::size_type pos = wind.find('@');
247 if (pos == string::npos)
249 string dir = wind.substr(0, pos);
250 string spd = wind.substr(pos+1);
252 if (pos == string::npos) {
253 *min_hdg = *max_hdg = atof(dir.c_str());
255 *min_hdg = atof(dir.substr(0,pos).c_str());
256 *max_hdg = atof(dir.substr(pos+1).c_str());
259 if (pos == string::npos) {
260 *speed = *gust = atof(spd.c_str());
262 *speed = atof(spd.substr(0,pos).c_str());
263 *gust = atof(spd.substr(pos+1).c_str());
268 // parse a time string ([+/-]%f[:%f[:%f]]) into hours
270 parse_time(const string& time_in) {
271 char *time_str, num[256];
272 double hours, minutes, seconds;
277 time_str = (char *)time_in.c_str();
279 // printf("parse_time(): %s\n", time_str);
282 if ( strlen(time_str) ) {
283 if ( time_str[0] == '+' ) {
286 } else if ( time_str[0] == '-' ) {
291 // printf("sign = %d\n", sign);
294 if ( strlen(time_str) ) {
296 while ( (time_str[0] != ':') && (time_str[0] != '\0') ) {
297 num[i] = time_str[0];
301 if ( time_str[0] == ':' ) {
306 // printf("hours = %.2lf\n", hours);
312 if ( strlen(time_str) ) {
314 while ( (time_str[0] != ':') && (time_str[0] != '\0') ) {
315 num[i] = time_str[0];
319 if ( time_str[0] == ':' ) {
324 // printf("minutes = %.2lf\n", minutes);
326 result += minutes / 60.0;
330 if ( strlen(time_str) ) {
332 while ( (time_str[0] != ':') && (time_str[0] != '\0') ) {
333 num[i] = time_str[0];
339 // printf("seconds = %.2lf\n", seconds);
341 result += seconds / 3600.0;
344 SG_LOG( SG_GENERAL, SG_INFO, " parse_time() = " << sign * result );
346 return(sign * result);
350 // parse a date string (yyyy:mm:dd:hh:mm:ss) into a time_t (seconds)
352 parse_date( const string& date)
355 char * date_str, num[256];
357 // initialize to zero
364 gmt.tm_isdst = 0; // ignore daylight savings time for the moment
365 date_str = (char *)date.c_str();
367 if ( strlen(date_str) ) {
369 while ( (date_str[0] != ':') && (date_str[0] != '\0') ) {
370 num[i] = date_str[0];
374 if ( date_str[0] == ':' ) {
378 gmt.tm_year = atoi(num) - 1900;
381 if ( strlen(date_str) ) {
383 while ( (date_str[0] != ':') && (date_str[0] != '\0') ) {
384 num[i] = date_str[0];
388 if ( date_str[0] == ':' ) {
392 gmt.tm_mon = atoi(num) -1;
395 if ( strlen(date_str) ) {
397 while ( (date_str[0] != ':') && (date_str[0] != '\0') ) {
398 num[i] = date_str[0];
402 if ( date_str[0] == ':' ) {
406 gmt.tm_mday = atoi(num);
409 if ( strlen(date_str) ) {
411 while ( (date_str[0] != ':') && (date_str[0] != '\0') ) {
412 num[i] = date_str[0];
416 if ( date_str[0] == ':' ) {
420 gmt.tm_hour = atoi(num);
423 if ( strlen(date_str) ) {
425 while ( (date_str[0] != ':') && (date_str[0] != '\0') ) {
426 num[i] = date_str[0];
430 if ( date_str[0] == ':' ) {
434 gmt.tm_min = atoi(num);
437 if ( strlen(date_str) ) {
439 while ( (date_str[0] != ':') && (date_str[0] != '\0') ) {
440 num[i] = date_str[0];
444 if ( date_str[0] == ':' ) {
448 gmt.tm_sec = atoi(num);
450 time_t theTime = sgTimeGetGMT( gmt.tm_year, gmt.tm_mon, gmt.tm_mday,
451 gmt.tm_hour, gmt.tm_min, gmt.tm_sec );
452 //printf ("Date is %s\n", ctime(&theTime));
453 //printf ("in seconds that is %d\n", theTime);
459 // parse angle in the form of [+/-]ddd:mm:ss into degrees
461 parse_degree( const string& degree_str) {
462 double result = parse_time( degree_str );
464 // printf("Degree = %.4f\n", result);
470 // parse time offset string into seconds
472 parse_time_offset( const string& time_str) {
475 // printf("time offset = %s\n", time_str);
478 result = (int)rint(parse_time(time_str) * 3600.0);
480 result = (int)(parse_time(time_str) * 3600.0);
483 // printf("parse_time_offset(): %d\n", result);
489 // Parse --fov=x.xx type option
491 parse_fov( const string& arg ) {
492 double fov = atof(arg);
494 if ( fov < FG_FOV_MIN ) { fov = FG_FOV_MIN; }
495 if ( fov > FG_FOV_MAX ) { fov = FG_FOV_MAX; }
497 fgSetDouble("/sim/current-view/field-of-view", fov);
499 // printf("parse_fov(): result = %.4f\n", fov);
505 // Parse I/O channel option
507 // Format is "--protocol=medium,direction,hz,medium_options,..."
509 // protocol = { native, nmea, garmin, fgfs, rul, pve, etc. }
510 // medium = { serial, socket, file, etc. }
511 // direction = { in, out, bi }
512 // hz = number of times to process channel per second (floating
513 // point values are ok.
515 // Serial example "--nmea=serial,dir,hz,device,baud" where
517 // device = OS device name of serial line to be open()'ed
518 // baud = {300, 1200, 2400, ..., 230400}
520 // Socket exacmple "--native=socket,dir,hz,machine,port,style" where
522 // machine = machine name or ip address if client (leave empty if server)
523 // port = port, leave empty to let system choose
524 // style = tcp or udp
526 // File example "--garmin=file,dir,hz,filename" where
528 // filename = file system file name
531 add_channel( const string& type, const string& channel_str ) {
532 SG_LOG(SG_GENERAL, SG_INFO, "Channel string = " << channel_str );
534 globals->get_channel_options_list()->push_back( type + "," + channel_str );
536 // cout << "here" << endl;
543 setup_wind (double min_hdg, double max_hdg, double speed, double gust)
545 fgSetDouble("/environment/wind-from-heading-deg", min_hdg);
546 fgSetDouble("/environment/params/min-wind-from-heading-deg", min_hdg);
547 fgSetDouble("/environment/params/max-wind-from-heading-deg", max_hdg);
548 fgSetDouble("/environment/wind-speed-kt", speed);
549 fgSetDouble("/environment/params/base-wind-speed-kt", speed);
550 fgSetDouble("/environment/params/gust-wind-speed-kt", gust);
552 SG_LOG(SG_GENERAL, SG_INFO, "WIND: " << min_hdg << '@' <<
553 speed << " knots" << endl);
557 speed *= SG_NM_TO_METER * SG_METER_TO_FEET * (1.0/3600);
558 while (min_hdg > 360)
562 min_hdg *= SGD_DEGREES_TO_RADIANS;
563 fgSetDouble("/environment/wind-from-north-fps", speed * cos(dir));
564 fgSetDouble("/environment/wind-from-east-fps", speed * sin(dir));
565 #endif // FG_WEATHERCM
569 // Parse --wp=ID[@alt]
571 parse_wp( const string& arg ) {
575 string::size_type pos = arg.find( "@" );
576 if ( pos != string::npos ) {
577 id = arg.substr( 0, pos );
578 alt_str = arg.substr( pos + 1 );
579 // cout << "id str = " << id << " alt str = " << alt_str << endl;
580 alt = atof( alt_str.c_str() );
581 if ( !strcmp(fgGetString("/sim/startup/units"), "feet") ) {
582 alt *= SG_FEET_TO_METER;
589 if ( fgFindAirportID( id, &a ) ) {
590 SGWayPoint wp( a.longitude, a.latitude, alt, SGWayPoint::WGS84, id );
591 globals->get_route()->add_waypoint( wp );
600 // Parse --flight-plan=[file]
602 parse_flightplan(const string& arg)
604 sg_gzifstream in(arg.c_str());
605 if ( !in.is_open() ) {
611 #if defined( macintosh )
612 getline( in, line, '\r' );
614 getline( in, line, '\n' );
617 // catch extraneous (DOS) line ending character
618 if ( line[line.length() - 1] < 32 ) {
619 line = line.substr( 0, line.length()-1 );
632 fgOptLanguage( const char *arg )
634 globals->set_locale( fgInitLocale( arg ) );
635 return FG_OPTIONS_OK;
641 fgSetString("/sim/presets/airport-id", "");
642 fgSetString("/sim/presets/vor-id", "");
643 fgSetString("/sim/presets/ndb-id", "");
644 fgSetString("/sim/presets/fix", "");
648 fgOptVOR( const char * arg )
651 fgSetString("/sim/presets/vor-id", arg);
652 return FG_OPTIONS_OK;
656 fgOptNDB( const char * arg )
659 fgSetString("/sim/presets/ndb-id", arg);
660 return FG_OPTIONS_OK;
664 fgOptFIX( const char * arg )
667 fgSetString("/sim/presets/fix", arg);
668 return FG_OPTIONS_OK;
672 fgOptLon( const char *arg )
675 fgSetDouble("/sim/presets/longitude-deg", parse_degree( arg ));
676 fgSetDouble("/position/longitude-deg", parse_degree( arg ));
677 return FG_OPTIONS_OK;
681 fgOptLat( const char *arg )
684 fgSetDouble("/sim/presets/latitude-deg", parse_degree( arg ));
685 fgSetDouble("/position/latitude-deg", parse_degree( arg ));
686 return FG_OPTIONS_OK;
690 fgOptAltitude( const char *arg )
692 fgSetBool("/sim/presets/onground", false);
693 if ( !strcmp(fgGetString("/sim/startup/units"), "feet") )
694 fgSetDouble("/sim/presets/altitude-ft", atof( arg ));
696 fgSetDouble("/sim/presets/altitude-ft",
697 atof( arg ) * SG_METER_TO_FEET);
698 return FG_OPTIONS_OK;
702 fgOptUBody( const char *arg )
704 fgSetString("/sim/presets/speed-set", "UVW");
705 if ( !strcmp(fgGetString("/sim/startup/units"), "feet") )
706 fgSetDouble("/sim/presets/uBody-fps", atof( arg ));
708 fgSetDouble("/sim/presets/uBody-fps",
709 atof( arg ) * SG_METER_TO_FEET);
710 return FG_OPTIONS_OK;
714 fgOptVBody( const char *arg )
716 fgSetString("/sim/presets/speed-set", "UVW");
717 if ( !strcmp(fgGetString("/sim/startup/units"), "feet") )
718 fgSetDouble("/sim/presets/vBody-fps", atof( arg ));
720 fgSetDouble("/sim/presets/vBody-fps",
721 atof( arg ) * SG_METER_TO_FEET);
722 return FG_OPTIONS_OK;
726 fgOptWBody( const char *arg )
728 fgSetString("/sim/presets/speed-set", "UVW");
729 if ( !strcmp(fgGetString("/sim/startup/units"), "feet") )
730 fgSetDouble("/sim/presets/wBody-fps", atof(arg));
732 fgSetDouble("/sim/presets/wBody-fps",
733 atof(arg) * SG_METER_TO_FEET);
734 return FG_OPTIONS_OK;
738 fgOptVNorth( const char *arg )
740 fgSetString("/sim/presets/speed-set", "NED");
741 if ( !strcmp(fgGetString("/sim/startup/units"), "feet") )
742 fgSetDouble("/sim/presets/speed-north-fps", atof( arg ));
744 fgSetDouble("/sim/presets/speed-north-fps",
745 atof( arg ) * SG_METER_TO_FEET);
746 return FG_OPTIONS_OK;
750 fgOptVEast( const char *arg )
752 fgSetString("/sim/presets/speed-set", "NED");
753 if ( !strcmp(fgGetString("/sim/startup/units"), "feet") )
754 fgSetDouble("/sim/presets/speed-east-fps", atof(arg));
756 fgSetDouble("/sim/presets/speed-east-fps",
757 atof(arg) * SG_METER_TO_FEET);
758 return FG_OPTIONS_OK;
762 fgOptVDown( const char *arg )
764 fgSetString("/sim/presets/speed-set", "NED");
765 if ( !strcmp(fgGetString("/sim/startup/units"), "feet") )
766 fgSetDouble("/sim/presets/speed-down-fps", atof(arg));
768 fgSetDouble("/sim/presets/speed-down-fps",
769 atof(arg) * SG_METER_TO_FEET);
770 return FG_OPTIONS_OK;
774 fgOptVc( const char *arg )
776 // fgSetString("/sim/presets/speed-set", "knots");
777 // fgSetDouble("/velocities/airspeed-kt", atof(arg.substr(5)));
778 fgSetString("/sim/presets/speed-set", "knots");
779 fgSetDouble("/sim/presets/airspeed-kt", atof(arg));
780 return FG_OPTIONS_OK;
784 fgOptMach( const char *arg )
786 fgSetString("/sim/presets/speed-set", "mach");
787 fgSetDouble("/sim/presets/mach", atof(arg));
788 return FG_OPTIONS_OK;
792 fgOptRoc( const char *arg )
794 fgSetDouble("/velocities/vertical-speed-fps", atof(arg)/60);
795 return FG_OPTIONS_OK;
799 fgOptFgRoot( const char *arg )
801 globals->set_fg_root(arg);
802 return FG_OPTIONS_OK;
806 fgOptFgScenery( const char *arg )
808 globals->set_fg_scenery(arg);
809 return FG_OPTIONS_OK;
813 fgOptFov( const char *arg )
816 return FG_OPTIONS_OK;
820 fgOptGeometry( const char *arg )
822 bool geometry_ok = true;
823 int xsize = 0, ysize = 0;
824 string geometry = arg;
825 string::size_type i = geometry.find('x');
827 if (i != string::npos) {
828 xsize = atoi(geometry.substr(0, i));
829 ysize = atoi(geometry.substr(i+1));
834 if ( xsize <= 0 || ysize <= 0 ) {
840 if ( !geometry_ok ) {
841 SG_LOG( SG_GENERAL, SG_ALERT, "Unknown geometry: " << geometry );
842 SG_LOG( SG_GENERAL, SG_ALERT,
843 "Setting geometry to " << xsize << 'x' << ysize << '\n');
845 SG_LOG( SG_GENERAL, SG_INFO,
846 "Setting geometry to " << xsize << 'x' << ysize << '\n');
847 fgSetInt("/sim/startup/xsize", xsize);
848 fgSetInt("/sim/startup/ysize", ysize);
850 return FG_OPTIONS_OK;
854 fgOptBpp( const char *arg )
856 string bits_per_pix = arg;
857 if ( bits_per_pix == "16" ) {
858 fgSetInt("/sim/rendering/bits-per-pixel", 16);
859 } else if ( bits_per_pix == "24" ) {
860 fgSetInt("/sim/rendering/bits-per-pixel", 24);
861 } else if ( bits_per_pix == "32" ) {
862 fgSetInt("/sim/rendering/bits-per-pixel", 32);
864 SG_LOG(SG_GENERAL, SG_ALERT, "Unsupported bpp " << bits_per_pix);
866 return FG_OPTIONS_OK;
870 fgOptTimeOffset( const char *arg )
872 fgSetInt("/sim/startup/time-offset",
873 parse_time_offset( arg ));
874 fgSetString("/sim/startup/time-offset-type", "system-offset");
875 return FG_OPTIONS_OK;
879 fgOptStartDateSys( const char *arg )
881 fgSetInt("/sim/startup/time-offset", parse_date( arg ) );
882 fgSetString("/sim/startup/time-offset-type", "system");
883 return FG_OPTIONS_OK;
887 fgOptStartDateLat( const char *arg )
889 fgSetInt("/sim/startup/time-offset", parse_date( arg ) );
890 fgSetString("/sim/startup/time-offset-type", "latitude");
891 return FG_OPTIONS_OK;
895 fgOptStartDateGmt( const char *arg )
897 fgSetInt("/sim/startup/time-offset", parse_date( arg ) );
898 fgSetString("/sim/startup/time-offset-type", "gmt");
899 return FG_OPTIONS_OK;
902 #ifdef FG_NETWORK_OLK
904 fgOptNetHud( const char *arg )
906 fgSetBool("/sim/hud/net-display", true);
907 net_hud_display = 1; // FIXME
908 return FG_OPTIONS_OK;
913 fgOptTraceRead( const char *arg )
916 SG_LOG(SG_GENERAL, SG_INFO, "Tracing reads for property " << name);
917 fgGetNode(name.c_str(), true)
918 ->setAttribute(SGPropertyNode::TRACE_READ, true);
919 return FG_OPTIONS_OK;
923 fgOptTraceWrite( const char *arg )
926 SG_LOG(SG_GENERAL, SG_INFO, "Tracing writes for property " << name);
927 fgGetNode(name.c_str(), true)
928 ->setAttribute(SGPropertyNode::TRACE_WRITE, true);
929 return FG_OPTIONS_OK;
933 fgOptViewOffset( const char *arg )
935 // $$$ begin - added VS Renganathan, 14 Oct 2K
936 // for multi-window outside window imagery
937 string woffset = arg;
938 double default_view_offset = 0.0;
939 if ( woffset == "LEFT" ) {
940 default_view_offset = SGD_PI * 0.25;
941 } else if ( woffset == "RIGHT" ) {
942 default_view_offset = SGD_PI * 1.75;
943 } else if ( woffset == "CENTER" ) {
944 default_view_offset = 0.00;
946 default_view_offset = atof( woffset.c_str() ) * SGD_DEGREES_TO_RADIANS;
948 /* apparently not used (CLO, 11 Jun 2002)
949 FGViewer *pilot_view =
950 (FGViewer *)globals->get_viewmgr()->get_view( 0 ); */
951 // this will work without calls to the viewer...
952 fgSetDouble( "/sim/current-view/heading-offset-deg",
953 default_view_offset * SGD_RADIANS_TO_DEGREES );
954 // $$$ end - added VS Renganathan, 14 Oct 2K
955 return FG_OPTIONS_OK;
959 fgOptVisibilityMiles( const char *arg )
961 double visibility = atof( arg ) * 5280.0 * SG_FEET_TO_METER;
962 fgSetDouble("/environment/visibility-m", visibility);
963 return FG_OPTIONS_OK;
967 fgOptRandomWind( const char *arg )
969 double min_hdg = sg_random() * 360.0;
970 double max_hdg = min_hdg + (20 - sqrt(sg_random() * 400));
971 double speed = 40 - sqrt(sg_random() * 1600.0);
972 double gust = speed + (10 - sqrt(sg_random() * 100));
973 setup_wind(min_hdg, max_hdg, speed, gust);
974 return FG_OPTIONS_OK;
978 fgOptWind( const char *arg )
980 double min_hdg, max_hdg, speed, gust;
981 if (!parse_wind( arg, &min_hdg, &max_hdg, &speed, &gust)) {
982 SG_LOG( SG_GENERAL, SG_ALERT, "bad wind value " << arg );
983 return FG_OPTIONS_ERROR;
985 setup_wind(min_hdg, max_hdg, speed, gust);
986 return FG_OPTIONS_OK;
990 fgOptWp( const char *arg )
993 return FG_OPTIONS_OK;
997 fgOptFlightPlan( const char *arg )
999 parse_flightplan ( arg );
1000 return FG_OPTIONS_OK;
1004 fgOptConfig( const char *arg )
1008 readProperties(file, globals->get_props());
1009 } catch (const sg_exception &e) {
1010 string message = "Error loading config file: ";
1011 message += e.getFormattedMessage();
1012 SG_LOG(SG_INPUT, SG_ALERT, message);
1015 return FG_OPTIONS_OK;
1018 static map<string,size_t> fgOptionMap;
1021 option has_param type property b_param s_param func
1024 option : name of the option
1025 has_param : option is --name=value if true or --name if false
1026 type : OPTION_BOOL - property is a boolean
1027 OPTION_STRING - property is a string
1028 OPTION_DOUBLE - property is a double
1029 OPTION_INT - property is an integer
1030 OPTION_CHANNEL - name of option is the name of a channel
1031 OPTION_FUNC - the option trigger a function
1032 b_param : if type==OPTION_BOOL,
1033 value set to the property (has_param is false for boolean)
1034 s_param : if type==OPTION_STRING,
1035 value set to the property if has_param is false
1036 func : function called if type==OPTION_FUNC. if has_param is true,
1037 the value is passed to the function as a string, otherwise,
1040 For OPTION_DOUBLE and OPTION_INT, the parameter value is converted into a
1041 double or an integer and set to the property.
1043 For OPTION_CHANNEL, add_channel is called with the parameter value as the
1047 enum OptionType { OPTION_BOOL, OPTION_STRING, OPTION_DOUBLE, OPTION_INT, OPTION_CHANNEL, OPTION_FUNC };
1051 enum OptionType type;
1055 int (*func)( const char * );
1056 } fgOptionArray[] = {
1058 {"language", true, OPTION_FUNC, "", false, "", fgOptLanguage },
1059 {"disable-game-mode", false, OPTION_BOOL, "/sim/startup/game-mode", false, "", 0 },
1060 {"enable-game-mode", false, OPTION_BOOL, "/sim/startup/game-mode", true, "", 0 },
1061 {"disable-splash-screen", false, OPTION_BOOL, "/sim/startup/splash-screen", false, "", 0 },
1062 {"enable-splash-screen", false, OPTION_BOOL, "/sim/startup/splash-screen", true, "", 0 },
1063 {"disable-intro-music", false, OPTION_BOOL, "/sim/startup/intro-music", false, "", 0 },
1064 {"enable-intro-music", false, OPTION_BOOL, "/sim/startup/intro-music", true, "", 0 },
1065 {"disable-mouse-pointer", false, OPTION_STRING, "/sim/startup/mouse-pointer", false, "disabled", 0 },
1066 {"enable-mouse-pointer", false, OPTION_STRING, "/sim/startup/mouse-pointer", false, "enabled", 0 },
1067 {"disable-random-objects", false, OPTION_BOOL, "/sim/rendering/random-objects", false, "", 0 },
1068 {"enable-random-objects", false, OPTION_BOOL, "/sim/rendering/random-objects", true, "", 0 },
1069 {"disable-freeze", false, OPTION_BOOL, "/sim/freeze/master", false, "", 0 },
1070 {"enable-freeze", false, OPTION_BOOL, "/sim/freeze/master", true, "", 0 },
1071 {"disable-fuel-freeze", false, OPTION_BOOL, "/sim/freeze/fuel", false, "", 0 },
1072 {"enable-fuel-freeze", false, OPTION_BOOL, "/sim/freeze/fuel", true, "", 0 },
1073 {"disable-clock-freeze", false, OPTION_BOOL, "/sim/freeze/clock", false, "", 0 },
1074 {"enable-clock-freeze", false, OPTION_BOOL, "/sim/freeze/clock", true, "", 0 },
1075 {"disable-anti-alias-hud", false, OPTION_BOOL, "/sim/hud/antialiased", false, "", 0 },
1076 {"enable-anti-alias-hud", false, OPTION_BOOL, "/sim/hud/antialiased", true, "", 0 },
1077 {"control", true, OPTION_STRING, "/sim/control-mode", false, "", 0 },
1078 {"disable-auto-coordination", false, OPTION_BOOL, "/sim/auto-coordination", false, "", 0 },
1079 {"enable-auto-coordination", false, OPTION_BOOL, "/sim/auto-coordination", true, "", 0 },
1080 {"browser-app", true, OPTION_STRING, "/sim/startup/browser-app", false, "", 0 },
1081 {"disable-hud", false, OPTION_BOOL, "/sim/hud/visibility", false, "", 0 },
1082 {"enable-hud", false, OPTION_BOOL, "/sim/hud/visibility", true, "", 0 },
1083 {"disable-panel", false, OPTION_BOOL, "/sim/panel/visibility", false, "", 0 },
1084 {"enable-panel", false, OPTION_BOOL, "/sim/panel/visibility", true, "", 0 },
1085 {"disable-sound", false, OPTION_BOOL, "/sim/sound/audible", false, "", 0 },
1086 {"enable-sound", false, OPTION_BOOL, "/sim/sound/audible", true, "", 0 },
1087 {"airport", true, OPTION_STRING, "/sim/presets/airport-id", false, "", 0 },
1088 {"airport-id", true, OPTION_STRING, "/sim/presets/airport-id", false, "", 0 },
1089 {"runway", true, OPTION_STRING, "/sim/presets/runway", false, "", 0 },
1090 {"vor", true, OPTION_FUNC, "", false, "", fgOptVOR },
1091 {"ndb", true, OPTION_FUNC, "", false, "", fgOptNDB },
1092 {"fix", true, OPTION_FUNC, "", false, "", fgOptFIX },
1093 {"offset-distance", true, OPTION_DOUBLE, "/sim/presets/offset-distance", false, "", 0 },
1094 {"offset-azimuth", true, OPTION_DOUBLE, "/sim/presets/offset-azimuth", false, "", 0 },
1095 {"lon", true, OPTION_FUNC, "", false, "", fgOptLon },
1096 {"lat", true, OPTION_FUNC, "", false, "", fgOptLat },
1097 {"altitude", true, OPTION_FUNC, "", false, "", fgOptAltitude },
1098 {"uBody", true, OPTION_FUNC, "", false, "", fgOptUBody },
1099 {"vBody", true, OPTION_FUNC, "", false, "", fgOptVBody },
1100 {"wBody", true, OPTION_FUNC, "", false, "", fgOptWBody },
1101 {"vNorth", true, OPTION_FUNC, "", false, "", fgOptVNorth },
1102 {"vEast", true, OPTION_FUNC, "", false, "", fgOptVEast },
1103 {"vDown", true, OPTION_FUNC, "", false, "", fgOptVDown },
1104 {"vc", true, OPTION_FUNC, "", false, "", fgOptVc },
1105 {"mach", true, OPTION_FUNC, "", false, "", fgOptMach },
1106 {"heading", true, OPTION_DOUBLE, "/sim/presets/heading-deg", false, "", 0 },
1107 {"roll", true, OPTION_DOUBLE, "/sim/presets/roll-deg", false, "", 0 },
1108 {"pitch", true, OPTION_DOUBLE, "/sim/presets/pitch-deg", false, "", 0 },
1109 {"glideslope", true, OPTION_DOUBLE, "/sim/presets/glideslope-deg", false, "", 0 },
1110 {"roc", true, OPTION_FUNC, "", false, "", fgOptRoc },
1111 {"fg-root", true, OPTION_FUNC, "", false, "", fgOptFgRoot },
1112 {"fg-scenery", true, OPTION_FUNC, "", false, "", fgOptFgScenery },
1113 {"fdm", true, OPTION_STRING, "/sim/flight-model", false, "", 0 },
1114 {"aero", true, OPTION_STRING, "/sim/aero", false, "", 0 },
1115 {"aircraft-dir", true, OPTION_STRING, "/sim/aircraft-dir", false, "", 0 },
1116 {"model-hz", true, OPTION_INT, "/sim/model-hz", false, "", 0 },
1117 {"speed", true, OPTION_INT, "/sim/speed-up", false, "", 0 },
1118 {"trim", false, OPTION_BOOL, "/sim/presets/trim", true, "", 0 },
1119 {"notrim", false, OPTION_BOOL, "/sim/presets/trim", false, "", 0 },
1120 {"on-ground", false, OPTION_BOOL, "/sim/presets/onground", true, "", 0 },
1121 {"in-air", false, OPTION_BOOL, "/sim/presets/onground", false, "", 0 },
1122 {"fog-disable", false, OPTION_STRING, "/sim/rendering/fog", false, "disabled", 0 },
1123 {"fog-fastest", false, OPTION_STRING, "/sim/rendering/fog", false, "fastest", 0 },
1124 {"fog-nicest", false, OPTION_STRING, "/sim/fog", false, "nicest", 0 },
1125 {"disable-distance-attenuation", false, OPTION_BOOL, "/environment/distance-attenuation", false, "", 0 },
1126 {"enable-distance-attenuation", false, OPTION_BOOL, "/environment/distance-attenuation", true, "", 0 },
1127 {"disable-clouds", false, OPTION_BOOL, "/environment/clouds/status", false, "", 0 },
1128 {"enable-clouds", false, OPTION_BOOL, "/environment/clouds/status", true, "", 0 },
1129 #ifdef FG_USE_CLOUDS_3D
1130 {"disable-clouds3d", false, OPTION_BOOL, "/sim/rendering/clouds3d", false, "", 0 },
1131 {"enable-clouds3d", false, OPTION_BOOL, "/sim/rendering/clouds3d", true, "", 0 },
1133 {"fov", true, OPTION_FUNC, "", false, "", fgOptFov },
1134 {"disable-fullscreen", false, OPTION_BOOL, "/sim/startup/fullscreen", false, "", 0 },
1135 {"enable-fullscreen", false, OPTION_BOOL, "/sim/startup/fullscreen", true, "", 0 },
1136 {"shading-flat", false, OPTION_BOOL, "/sim/rendering/shading", false, "", 0 },
1137 {"shading-smooth", false, OPTION_BOOL, "/sim/rendering/shading", true, "", 0 },
1138 {"disable-skyblend", false, OPTION_BOOL, "/sim/rendering/skyblend", false, "", 0 },
1139 {"enable-skyblend", false, OPTION_BOOL, "/sim/rendering/skyblend", true, "", 0 },
1140 {"disable-textures", false, OPTION_BOOL, "/sim/rendering/textures", false, "", 0 },
1141 {"enable-textures", false, OPTION_BOOL, "/sim/rendering/textures", true, "", 0 },
1142 {"disable-wireframe", false, OPTION_BOOL, "/sim/rendering/wireframe", false, "", 0 },
1143 {"enable-wireframe", false, OPTION_BOOL, "/sim/rendering/wireframe", true, "", 0 },
1144 {"geometry", true, OPTION_FUNC, "", false, "", fgOptGeometry },
1145 {"bpp", true, OPTION_FUNC, "", false, "", fgOptBpp },
1146 {"units-feet", false, OPTION_STRING, "/sim/startup/units", false, "feet", 0 },
1147 {"units-meters", false, OPTION_STRING, "/sim/startup/units", false, "meters", 0 },
1148 {"time-offset", true, OPTION_FUNC, "", false, "", fgOptTimeOffset },
1149 {"time-match-real", false, OPTION_STRING, "/sim/startup/time-offset-type", false, "system-offset", 0 },
1150 {"time-match-local", false, OPTION_STRING, "/sim/startup/time-offset-type", false, "latitude-offset", 0 },
1151 {"start-date-sys", true, OPTION_FUNC, "", false, "", fgOptStartDateSys },
1152 {"start-date-lat", true, OPTION_FUNC, "", false, "", fgOptStartDateLat },
1153 {"start-date-gmt", true, OPTION_FUNC, "", false, "", fgOptStartDateGmt },
1154 {"hud-tris", false, OPTION_STRING, "/sim/hud/frame-stat-type", false, "tris", 0 },
1155 {"hud-culled", false, OPTION_STRING, "/sim/hud/frame-stat-type", false, "culled", 0 },
1156 {"atc610x", true, OPTION_CHANNEL, "", false, "dummy", 0 },
1157 {"atlas", true, OPTION_CHANNEL, "", false, "", 0 },
1158 {"httpd", true, OPTION_CHANNEL, "", false, "", 0 },
1159 #ifdef FG_JPEG_SERVER
1160 {"jpg-httpd", true, OPTION_CHANNEL, "", false, "", 0 },
1162 {"native", true, OPTION_CHANNEL, "", false, "", 0 },
1163 {"native-ctrls", true, OPTION_CHANNEL, "", false, "", 0 },
1164 {"native-fdm", true, OPTION_CHANNEL, "", false, "", 0 },
1165 {"native-gui", true, OPTION_CHANNEL, "", false, "", 0 },
1166 {"opengc", true, OPTION_CHANNEL, "", false, "", 0 },
1167 {"garmin", true, OPTION_CHANNEL, "", false, "", 0 },
1168 {"nmea", true, OPTION_CHANNEL, "", false, "", 0 },
1169 {"generic", true, OPTION_CHANNEL, "", false, "", 0 },
1170 {"props", true, OPTION_CHANNEL, "", false, "", 0 },
1171 {"telnet", true, OPTION_CHANNEL, "", false, "", 0 },
1172 {"pve", true, OPTION_CHANNEL, "", false, "", 0 },
1173 {"ray", true, OPTION_CHANNEL, "", false, "", 0 },
1174 {"rul", true, OPTION_CHANNEL, "", false, "", 0 },
1175 {"joyclient", true, OPTION_CHANNEL, "", false, "", 0 },
1176 #ifdef FG_NETWORK_OLK
1177 {"disable-network-olk", false, OPTION_BOOL, "/sim/networking/olk", false, "", 0 },
1178 {"enable-network-olk", false, OPTION_BOOL, "/sim/networking/olk", true, "", 0 },
1179 {"net-hud", false, OPTION_FUNC, "", false, "", fgOptNetHud },
1180 {"net-id", true, OPTION_STRING, "sim/networking/call-sign", false, "", 0 },
1182 #ifdef FG_MPLAYER_AS
1183 {"callsign", true, OPTION_STRING, "sim/multiplay/callsign", false, "", 0 },
1184 {"multiplay", true, OPTION_CHANNEL, "", false, "", 0 },
1186 {"trace-read", true, OPTION_FUNC, "", false, "", fgOptTraceRead },
1187 {"trace-write", true, OPTION_FUNC, "", false, "", fgOptTraceWrite },
1188 {"log-level", true, OPTION_INT, "/sim/log-level", false, "", 0 },
1189 {"view-offset", true, OPTION_FUNC, "", false, "", fgOptViewOffset },
1190 {"visibility", true, OPTION_DOUBLE, "/environment/visibility-m", false, "", 0 },
1191 {"visibility-miles", true, OPTION_FUNC, "", false, "", fgOptVisibilityMiles },
1192 {"random-wind", false, OPTION_FUNC, "", false, "", fgOptRandomWind },
1193 {"wind", true, OPTION_FUNC, "", false, "", fgOptWind },
1194 {"turbulence", true, OPTION_DOUBLE, "/environment/turbulence-norm", false, "", 0 },
1195 {"wp", true, OPTION_FUNC, "", false, "", fgOptWp },
1196 {"flight-plan", true, OPTION_FUNC, "", false, "", fgOptFlightPlan },
1197 {"config", true, OPTION_FUNC, "", false, "", fgOptConfig },
1198 {"aircraft", true, OPTION_STRING, "/sim/aircraft", false, "", 0 },
1203 // Parse a single option
1205 parse_option (const string& arg)
1207 if ( fgOptionMap.size() == 0 ) {
1209 OptionDesc *pt = &fgOptionArray[ 0 ];
1210 while ( pt->option != 0 ) {
1211 fgOptionMap[ pt->option ] = i;
1218 if ( (arg == "--help") || (arg == "-h") ) {
1219 // help/usage request
1220 return(FG_OPTIONS_HELP);
1221 } else if ( (arg == "--verbose") || (arg == "-v") ) {
1222 // verbose help/usage request
1223 return(FG_OPTIONS_VERBOSE_HELP);
1224 } else if ( arg.find( "--show-aircraft") == 0) {
1225 return(FG_OPTIONS_SHOW_AIRCRAFT);
1226 } else if ( arg.find( "--prop:" ) == 0 ) {
1227 string assign = arg.substr(7);
1228 string::size_type pos = assign.find('=');
1229 if ( pos == arg.npos || pos == 0 ) {
1230 SG_LOG( SG_GENERAL, SG_ALERT, "Bad property assignment: " << arg );
1231 return FG_OPTIONS_ERROR;
1233 string name = assign.substr(0, pos);
1234 string value = assign.substr(pos + 1);
1235 fgSetString(name.c_str(), value.c_str());
1236 // SG_LOG(SG_GENERAL, SG_INFO, "Setting default value of property "
1237 // << name << " to \"" << value << '"');
1238 } else if ( arg.find( "--" ) == 0 ) {
1239 size_t pos = arg.find( '=' );
1241 if ( pos == string::npos ) {
1242 arg_name = arg.substr( 2 );
1244 arg_name = arg.substr( 2, pos - 2 );
1246 map<string,size_t>::iterator it = fgOptionMap.find( arg_name );
1247 if ( it != fgOptionMap.end() ) {
1248 OptionDesc *pt = &fgOptionArray[ it->second ];
1249 switch ( pt->type ) {
1251 fgSetBool( pt->property, pt->b_param );
1254 if ( pt->has_param && pos != string::npos ) {
1255 fgSetString( pt->property, arg.substr( pos + 1 ).c_str() );
1256 } else if ( !pt->has_param && pos == string::npos ) {
1257 fgSetString( pt->property, pt->s_param );
1258 } else if ( pt->has_param ) {
1259 SG_LOG( SG_GENERAL, SG_ALERT, "Option '" << arg << "' needs a parameter" );
1260 return FG_OPTIONS_ERROR;
1262 SG_LOG( SG_GENERAL, SG_ALERT, "Option '" << arg << "' does not have a parameter" );
1263 return FG_OPTIONS_ERROR;
1267 if ( pos != string::npos ) {
1268 fgSetDouble( pt->property, atof( arg.substr( pos + 1 ) ) );
1270 SG_LOG( SG_GENERAL, SG_ALERT, "Option '" << arg << "' needs a parameter" );
1271 return FG_OPTIONS_ERROR;
1275 if ( pos != string::npos ) {
1276 fgSetInt( pt->property, atoi( arg.substr( pos + 1 ) ) );
1278 SG_LOG( SG_GENERAL, SG_ALERT, "Option '" << arg << "' needs a parameter" );
1279 return FG_OPTIONS_ERROR;
1282 case OPTION_CHANNEL:
1283 if ( pt->has_param && pos != string::npos ) {
1284 add_channel( pt->option, arg.substr( pos + 1 ) );
1285 } else if ( !pt->has_param && pos == string::npos ) {
1286 add_channel( pt->option, pt->s_param );
1287 } else if ( pt->has_param ) {
1288 SG_LOG( SG_GENERAL, SG_ALERT, "Option '" << arg << "' needs a parameter" );
1289 return FG_OPTIONS_ERROR;
1291 SG_LOG( SG_GENERAL, SG_ALERT, "Option '" << arg << "' does not have a parameter" );
1292 return FG_OPTIONS_ERROR;
1296 if ( pt->has_param && pos != string::npos ) {
1297 return pt->func( arg.substr( pos + 1 ).c_str() );
1298 } else if ( !pt->has_param && pos == string::npos ) {
1299 return pt->func( 0 );
1300 } else if ( pt->has_param ) {
1301 SG_LOG( SG_GENERAL, SG_ALERT, "Option '" << arg << "' needs a parameter" );
1302 return FG_OPTIONS_ERROR;
1304 SG_LOG( SG_GENERAL, SG_ALERT, "Option '" << arg << "' does not have a parameter" );
1305 return FG_OPTIONS_ERROR;
1310 SG_LOG( SG_GENERAL, SG_ALERT, "Unknown option '" << arg << "'" );
1311 return FG_OPTIONS_ERROR;
1314 SG_LOG( SG_GENERAL, SG_ALERT, "Unknown option '" << arg << "'" );
1315 return FG_OPTIONS_ERROR;
1318 return FG_OPTIONS_OK;
1322 // Parse the command line options
1324 fgParseArgs (int argc, char **argv)
1326 bool in_options = true;
1327 bool verbose = false;
1330 SG_LOG(SG_GENERAL, SG_INFO, "Processing command line arguments");
1332 for (int i = 1; i < argc; i++) {
1333 string arg = argv[i];
1335 if (in_options && (arg.find('-') == 0)) {
1339 int result = parse_option(arg);
1340 if ((result == FG_OPTIONS_HELP) || (result == FG_OPTIONS_ERROR))
1343 else if (result == FG_OPTIONS_VERBOSE_HELP)
1346 else if (result == FG_OPTIONS_SHOW_AIRCRAFT) {
1353 SG_LOG(SG_GENERAL, SG_INFO,
1354 "Reading command-line property file " << arg);
1355 readProperties(arg, globals->get_props());
1364 SG_LOG(SG_GENERAL, SG_INFO, "Finished command line arguments");
1368 // Parse config file options
1370 fgParseOptions (const string& path) {
1371 sg_gzifstream in( path );
1372 if ( !in.is_open() ) {
1376 SG_LOG( SG_GENERAL, SG_INFO, "Processing config file: " << path );
1380 while ( ! in.eof() ) {
1383 while ( in.get(c) && c != '\0' ) {
1388 #if defined( macintosh )
1389 getline( in, line, '\r' );
1391 getline( in, line, '\n' );
1394 // catch extraneous (DOS) line ending character
1395 if ( line[line.length() - 1] < 32 ) {
1396 line = line.substr( 0, line.length()-1 );
1399 if ( parse_option( line ) == FG_OPTIONS_ERROR ) {
1400 cerr << endl << "Config file parse error: " << path << " '"
1401 << line << "'" << endl;
1410 // Print usage message
1412 fgUsage (bool verbose)
1414 SGPropertyNode *locale = globals->get_locale();
1416 SGPropertyNode options_root;
1421 fgLoadProps("options.xml", &options_root);
1422 } catch (const sg_exception &ex) {
1423 cout << "Unable to read the help file." << endl;
1424 cout << "Make sure the file options.xml is located in the FlightGear base directory," << endl;
1425 cout << "and the location of the base directory is specified by setting $FG_ROOT or" << endl;
1426 cout << "by adding --fg-root=path as a program argument." << endl;
1431 SGPropertyNode *options = options_root.getNode("options");
1433 SG_LOG( SG_GENERAL, SG_ALERT,
1434 "Error reading options.xml: <options> directive not found." );
1438 SGPropertyNode *usage = locale->getNode(options->getStringValue("usage"));
1440 cout << "Usage: " << usage->getStringValue() << endl;
1443 vector<SGPropertyNode_ptr>section = options->getChildren("section");
1444 for (unsigned int j = 0; j < section.size(); j++) {
1447 vector<SGPropertyNode_ptr>option = section[j]->getChildren("option");
1448 for (unsigned int k = 0; k < option.size(); k++) {
1450 SGPropertyNode *name = option[k]->getNode("name");
1451 SGPropertyNode *short_name = option[k]->getNode("short");
1452 SGPropertyNode *key = option[k]->getNode("key");
1453 SGPropertyNode *arg = option[k]->getNode("arg");
1454 bool brief = option[k]->getNode("brief");
1456 if ((brief || verbose) && name) {
1457 string tmp = name->getStringValue();
1461 tmp.append(key->getStringValue());
1465 tmp.append(arg->getStringValue());
1469 tmp.append(short_name->getStringValue());
1473 if (tmp.size() <= 25) {
1474 snprintf(cstr, 96, " --%-27s", tmp.c_str());
1476 snprintf(cstr, 96, "\n --%s\n%32c", tmp.c_str(), ' ');
1479 // There may be more than one <description> tag assosiated
1483 vector<SGPropertyNode_ptr>desc =
1484 option[k]->getChildren("description");
1486 if (desc.size() > 0) {
1487 for ( unsigned int l = 0; l < desc.size(); l++) {
1489 // There may be more than one translation line.
1491 string t = desc[l]->getStringValue();
1492 SGPropertyNode *n = locale->getNode("strings");
1493 vector<SGPropertyNode_ptr>trans_desc =
1494 n->getChildren(t.substr(8).c_str());
1496 for ( unsigned int m = 0; m < trans_desc.size(); m++ ) {
1497 string t_str = trans_desc[m]->getStringValue();
1499 if ((m > 0) || ((l > 0) && m == 0)) {
1500 snprintf(cstr, 96, "%32c", ' ');
1505 // If the string is too large to fit on the screen,
1506 // then split it up in several pieces.
1508 while ( t_str.size() > 47 ) {
1510 unsigned int m = t_str.rfind(' ', 47);
1511 msg += t_str.substr(0, m);
1512 snprintf(cstr, 96, "\n%32c", ' ');
1515 t_str.erase(t_str.begin(), t_str.begin() + m + 1);
1517 msg += t_str + '\n';
1524 SGPropertyNode *name =
1525 locale->getNode(section[j]->getStringValue("name"));
1527 if (!msg.empty() && name) {
1528 cout << endl << name->getStringValue() << ":" << endl;
1536 cout << "For a complete list of options use --help --verbose" << endl;
1540 // Show available aircraft types
1541 void fgShowAircraft(void) {
1542 vector<string> aircraft;
1544 SGPath path( globals->get_fg_root() );
1545 path.append("Aircraft");
1550 dirp = ulOpenDir(path.c_str());
1552 cerr << "Unable to open aircraft directory." << endl;
1556 while ((dire = ulReadDir(dirp)) != NULL) {
1559 if ((ptr = strstr(dire->d_name, "-set.xml")) && ptr[8] == '\0' ) {
1560 SGPath afile = path;
1561 afile.append(dire->d_name);
1565 SGPropertyNode root;
1567 readProperties(afile.str(), &root);
1572 SGPropertyNode *desc = NULL;
1573 SGPropertyNode *node = root.getNode("sim");
1575 desc = node->getNode("description");
1579 if (strlen(dire->d_name) <= 27)
1580 snprintf(cstr, 96, " %-27s %s", dire->d_name,
1581 (desc) ? desc->getStringValue() : "" );
1584 snprintf(cstr, 96, " %-27s\n%32c%s", dire->d_name, ' ',
1585 (desc) ? desc->getStringValue() : "" );
1587 aircraft.push_back(cstr);
1591 sort(aircraft.begin(), aircraft.end());
1592 cout << "Available aircraft:" << endl;
1593 for ( unsigned int i = 0; i < aircraft.size(); i++ ) {
1594 cout << aircraft[i] << endl;