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"
64 #include "viewmgr.hxx"
69 SG_USING_NAMESPACE(std);
72 #define NEW_DEFAULT_MODEL_HZ 120
79 FG_OPTIONS_VERBOSE_HELP = 3,
80 FG_OPTIONS_SHOW_AIRCRAFT = 4
84 atof( const string& str )
88 // -dw- if ::atof is called, then we get an infinite loop
89 return std::atof( str.c_str() );
91 return ::atof( str.c_str() );
96 atoi( const string& str )
99 // -dw- if ::atoi is called, then we get an infinite loop
100 return std::atoi( str.c_str() );
102 return ::atoi( str.c_str() );
108 * Set a few fail-safe default property values.
110 * These should all be set in $FG_ROOT/preferences.xml, but just
111 * in case, we provide some initial sane values here. This method
112 * should be invoked *before* reading any init files.
117 // set a possibly independent location for scenery data
118 char *envp = ::getenv( "FG_SCENERY" );
120 if ( envp != NULL ) {
121 // fg_root could be anywhere, so default to environmental
122 // variable $FG_ROOT if it is set.
123 globals->set_fg_scenery(envp);
125 // Otherwise, default to Scenery being in $FG_ROOT/Scenery
126 globals->set_fg_scenery("");
128 // Position (deliberately out of range)
129 fgSetDouble("/position/longitude-deg", 9999.0);
130 fgSetDouble("/position/latitude-deg", 9999.0);
131 fgSetDouble("/position/altitude-ft", -9999.0);
134 fgSetDouble("/orientation/heading-deg", 270);
135 fgSetDouble("/orientation/roll-deg", 0);
136 fgSetDouble("/orientation/pitch-deg", 0.424);
139 fgSetDouble("/velocities/uBody-fps", 0.0);
140 fgSetDouble("/velocities/vBody-fps", 0.0);
141 fgSetDouble("/velocities/wBody-fps", 0.0);
142 fgSetDouble("/velocities/speed-north-fps", 0.0);
143 fgSetDouble("/velocities/speed-east-fps", 0.0);
144 fgSetDouble("/velocities/speed-down-fps", 0.0);
145 fgSetDouble("/velocities/airspeed-kt", 0.0);
146 fgSetDouble("/velocities/mach", 0.0);
149 fgSetDouble("/sim/presets/longitude-deg", 9999.0);
150 fgSetDouble("/sim/presets/latitude-deg", 9999.0);
151 fgSetDouble("/sim/presets/altitude-ft", -9999.0);
153 fgSetDouble("/sim/presets/heading-deg", 270);
154 fgSetDouble("/sim/presets/roll-deg", 0);
155 fgSetDouble("/sim/presets/pitch-deg", 0.424);
157 fgSetString("/sim/presets/speed-set", "knots");
158 fgSetDouble("/sim/presets/airspeed-kt", 0.0);
159 fgSetDouble("/sim/presets/mach", 0.0);
160 fgSetDouble("/sim/presets/uBody-fps", 0.0);
161 fgSetDouble("/sim/presets/vBody-fps", 0.0);
162 fgSetDouble("/sim/presets/wBody-fps", 0.0);
163 fgSetDouble("/sim/presets/speed-north-fps", 0.0);
164 fgSetDouble("/sim/presets/speed-east-fps", 0.0);
165 fgSetDouble("/sim/presets/speed-down-fps", 0.0);
167 fgSetBool("/sim/presets/onground", true);
168 fgSetBool("/sim/presets/trim", false);
171 fgSetBool("/sim/startup/game-mode", false);
172 fgSetBool("/sim/startup/splash-screen", true);
173 fgSetBool("/sim/startup/intro-music", true);
174 // we want mouse-pointer to have an undefined value if nothing is
175 // specified so we can do the right thing for voodoo-1/2 cards.
176 // fgSetString("/sim/startup/mouse-pointer", "disabled");
177 fgSetString("/sim/control-mode", "joystick");
178 fgSetBool("/sim/auto-coordination", false);
180 fgSetString("/sim/startup/browser-app", "netscape");
182 fgSetString("/sim/startup/browser-app", "webrun.bat");
184 fgSetInt("/sim/log-level", SG_WARN);
187 fgSetBool("/sim/hud/visibility", false);
188 fgSetBool("/sim/panel/visibility", true);
189 fgSetBool("/sim/sound/audible", true);
190 fgSetBool("/sim/hud/antialiased", false);
192 // Flight Model options
193 fgSetString("/sim/flight-model", "jsb");
194 fgSetString("/sim/aero", "c172");
195 fgSetInt("/sim/model-hz", NEW_DEFAULT_MODEL_HZ);
196 fgSetInt("/sim/speed-up", 1);
199 fgSetString("/sim/rendering/fog", "nicest");
200 fgSetBool("/environment/clouds/status", true);
201 fgSetBool("/sim/startup/fullscreen", false);
202 fgSetBool("/sim/rendering/shading", true);
203 fgSetBool("/sim/rendering/skyblend", true);
204 fgSetBool("/sim/rendering/textures", true);
205 fgSetBool("/sim/rendering/wireframe", false);
206 fgSetBool("/sim/rendering/horizon-effect", false);
207 fgSetBool("/sim/rendering/enhanced-lighting", false);
208 fgSetBool("/sim/rendering/distance-attenuation", false);
209 fgSetInt("/sim/startup/xsize", 800);
210 fgSetInt("/sim/startup/ysize", 600);
211 fgSetInt("/sim/rendering/bits-per-pixel", 16);
212 fgSetString("/sim/view-mode", "pilot");
213 fgSetDouble("/sim/current-view/heading-offset-deg", 0);
216 fgSetString("/sim/startup/units", "feet");
217 fgSetString("/sim/hud/frame-stat-type", "tris");
220 fgSetInt("/sim/startup/time-offset", 0);
221 fgSetString("/sim/startup/time-offset-type", "system-offset");
222 fgSetLong("/sim/time/cur-time-override", 0);
224 fgSetBool("/sim/networking/network-olk", false);
225 fgSetString("/sim/networking/call-sign", "Johnny");
228 fgSetBool("/sim/freeze/master", false);
229 fgSetBool("/sim/freeze/position", false);
230 fgSetBool("/sim/freeze/clock", false);
231 fgSetBool("/sim/freeze/fuel", false);
234 fgSetString("/sim/multiplay/callsign", "callsign");
235 fgSetString("/sim/multiplay/rxhost", "0");
236 fgSetString("/sim/multiplay/txhost", "0");
237 fgSetInt("/sim/multiplay/rxport", 0);
238 fgSetInt("/sim/multiplay/txport", 0);
245 parse_wind (const string &wind, double * min_hdg, double * max_hdg,
246 double * speed, double * gust)
248 string::size_type pos = wind.find('@');
249 if (pos == string::npos)
251 string dir = wind.substr(0, pos);
252 string spd = wind.substr(pos+1);
254 if (pos == string::npos) {
255 *min_hdg = *max_hdg = atof(dir.c_str());
257 *min_hdg = atof(dir.substr(0,pos).c_str());
258 *max_hdg = atof(dir.substr(pos+1).c_str());
261 if (pos == string::npos) {
262 *speed = *gust = atof(spd.c_str());
264 *speed = atof(spd.substr(0,pos).c_str());
265 *gust = atof(spd.substr(pos+1).c_str());
270 // parse a time string ([+/-]%f[:%f[:%f]]) into hours
272 parse_time(const string& time_in) {
273 char *time_str, num[256];
274 double hours, minutes, seconds;
279 time_str = (char *)time_in.c_str();
281 // printf("parse_time(): %s\n", time_str);
284 if ( strlen(time_str) ) {
285 if ( time_str[0] == '+' ) {
288 } else if ( time_str[0] == '-' ) {
293 // printf("sign = %d\n", sign);
296 if ( strlen(time_str) ) {
298 while ( (time_str[0] != ':') && (time_str[0] != '\0') ) {
299 num[i] = time_str[0];
303 if ( time_str[0] == ':' ) {
308 // printf("hours = %.2lf\n", hours);
314 if ( strlen(time_str) ) {
316 while ( (time_str[0] != ':') && (time_str[0] != '\0') ) {
317 num[i] = time_str[0];
321 if ( time_str[0] == ':' ) {
326 // printf("minutes = %.2lf\n", minutes);
328 result += minutes / 60.0;
332 if ( strlen(time_str) ) {
334 while ( (time_str[0] != ':') && (time_str[0] != '\0') ) {
335 num[i] = time_str[0];
341 // printf("seconds = %.2lf\n", seconds);
343 result += seconds / 3600.0;
346 SG_LOG( SG_GENERAL, SG_INFO, " parse_time() = " << sign * result );
348 return(sign * result);
352 // parse a date string (yyyy:mm:dd:hh:mm:ss) into a time_t (seconds)
354 parse_date( const string& date)
357 char * date_str, num[256];
359 // initialize to zero
366 gmt.tm_isdst = 0; // ignore daylight savings time for the moment
367 date_str = (char *)date.c_str();
369 if ( strlen(date_str) ) {
371 while ( (date_str[0] != ':') && (date_str[0] != '\0') ) {
372 num[i] = date_str[0];
376 if ( date_str[0] == ':' ) {
380 gmt.tm_year = atoi(num) - 1900;
383 if ( strlen(date_str) ) {
385 while ( (date_str[0] != ':') && (date_str[0] != '\0') ) {
386 num[i] = date_str[0];
390 if ( date_str[0] == ':' ) {
394 gmt.tm_mon = atoi(num) -1;
397 if ( strlen(date_str) ) {
399 while ( (date_str[0] != ':') && (date_str[0] != '\0') ) {
400 num[i] = date_str[0];
404 if ( date_str[0] == ':' ) {
408 gmt.tm_mday = atoi(num);
411 if ( strlen(date_str) ) {
413 while ( (date_str[0] != ':') && (date_str[0] != '\0') ) {
414 num[i] = date_str[0];
418 if ( date_str[0] == ':' ) {
422 gmt.tm_hour = atoi(num);
425 if ( strlen(date_str) ) {
427 while ( (date_str[0] != ':') && (date_str[0] != '\0') ) {
428 num[i] = date_str[0];
432 if ( date_str[0] == ':' ) {
436 gmt.tm_min = atoi(num);
439 if ( strlen(date_str) ) {
441 while ( (date_str[0] != ':') && (date_str[0] != '\0') ) {
442 num[i] = date_str[0];
446 if ( date_str[0] == ':' ) {
450 gmt.tm_sec = atoi(num);
452 time_t theTime = sgTimeGetGMT( gmt.tm_year, gmt.tm_mon, gmt.tm_mday,
453 gmt.tm_hour, gmt.tm_min, gmt.tm_sec );
454 //printf ("Date is %s\n", ctime(&theTime));
455 //printf ("in seconds that is %d\n", theTime);
461 // parse angle in the form of [+/-]ddd:mm:ss into degrees
463 parse_degree( const string& degree_str) {
464 double result = parse_time( degree_str );
466 // printf("Degree = %.4f\n", result);
472 // parse time offset string into seconds
474 parse_time_offset( const string& time_str) {
477 // printf("time offset = %s\n", time_str);
480 result = (int)rint(parse_time(time_str) * 3600.0);
482 result = (int)(parse_time(time_str) * 3600.0);
485 // printf("parse_time_offset(): %d\n", result);
491 // Parse --fov=x.xx type option
493 parse_fov( const string& arg ) {
494 double fov = atof(arg);
496 if ( fov < FG_FOV_MIN ) { fov = FG_FOV_MIN; }
497 if ( fov > FG_FOV_MAX ) { fov = FG_FOV_MAX; }
499 fgSetDouble("/sim/current-view/field-of-view", fov);
501 // printf("parse_fov(): result = %.4f\n", fov);
507 // Parse I/O channel option
509 // Format is "--protocol=medium,direction,hz,medium_options,..."
511 // protocol = { native, nmea, garmin, fgfs, rul, pve, etc. }
512 // medium = { serial, socket, file, etc. }
513 // direction = { in, out, bi }
514 // hz = number of times to process channel per second (floating
515 // point values are ok.
517 // Serial example "--nmea=serial,dir,hz,device,baud" where
519 // device = OS device name of serial line to be open()'ed
520 // baud = {300, 1200, 2400, ..., 230400}
522 // Socket exacmple "--native=socket,dir,hz,machine,port,style" where
524 // machine = machine name or ip address if client (leave empty if server)
525 // port = port, leave empty to let system choose
526 // style = tcp or udp
528 // File example "--garmin=file,dir,hz,filename" where
530 // filename = file system file name
533 add_channel( const string& type, const string& channel_str ) {
534 SG_LOG(SG_GENERAL, SG_INFO, "Channel string = " << channel_str );
536 globals->get_channel_options_list()->push_back( type + "," + channel_str );
538 // cout << "here" << endl;
545 setup_wind (double min_hdg, double max_hdg, double speed, double gust)
547 fgDefaultWeatherValue("wind-from-heading-deg", min_hdg);
548 fgDefaultWeatherValue("wind-speed-kt", speed);
550 SG_LOG(SG_GENERAL, SG_INFO, "WIND: " << min_hdg << '@' <<
551 speed << " knots" << endl);
555 speed *= SG_NM_TO_METER * SG_METER_TO_FEET * (1.0/3600);
556 while (min_hdg > 360)
560 min_hdg *= SGD_DEGREES_TO_RADIANS;
561 fgSetDouble("/environment/wind-from-north-fps", speed * cos(dir));
562 fgSetDouble("/environment/wind-from-east-fps", speed * sin(dir));
563 #endif // FG_WEATHERCM
567 // Parse --wp=ID[@alt]
569 parse_wp( const string& arg ) {
573 string::size_type pos = arg.find( "@" );
574 if ( pos != string::npos ) {
575 id = arg.substr( 0, pos );
576 alt_str = arg.substr( pos + 1 );
577 // cout << "id str = " << id << " alt str = " << alt_str << endl;
578 alt = atof( alt_str.c_str() );
579 if ( !strcmp(fgGetString("/sim/startup/units"), "feet") ) {
580 alt *= SG_FEET_TO_METER;
587 if ( fgFindAirportID( id, &a ) ) {
588 SGWayPoint wp( a.longitude, a.latitude, alt, SGWayPoint::WGS84, id );
589 globals->get_route()->add_waypoint( wp );
598 // Parse --flight-plan=[file]
600 parse_flightplan(const string& arg)
602 sg_gzifstream in(arg.c_str());
603 if ( !in.is_open() ) {
609 #if defined( macintosh )
610 getline( in, line, '\r' );
612 getline( in, line, '\n' );
615 // catch extraneous (DOS) line ending character
616 if ( line[line.length() - 1] < 32 ) {
617 line = line.substr( 0, line.length()-1 );
630 fgOptLanguage( const char *arg )
632 globals->set_locale( fgInitLocale( arg ) );
633 return FG_OPTIONS_OK;
639 fgSetString("/sim/presets/airport-id", "");
640 fgSetString("/sim/presets/vor-id", "");
641 fgSetString("/sim/presets/ndb-id", "");
642 fgSetString("/sim/presets/fix", "");
646 fgOptVOR( const char * arg )
649 fgSetString("/sim/presets/vor-id", arg);
650 return FG_OPTIONS_OK;
654 fgOptNDB( const char * arg )
657 fgSetString("/sim/presets/ndb-id", arg);
658 return FG_OPTIONS_OK;
662 fgOptFIX( const char * arg )
665 fgSetString("/sim/presets/fix", arg);
666 return FG_OPTIONS_OK;
670 fgOptLon( const char *arg )
673 fgSetDouble("/sim/presets/longitude-deg", parse_degree( arg ));
674 fgSetDouble("/position/longitude-deg", parse_degree( arg ));
675 return FG_OPTIONS_OK;
679 fgOptLat( const char *arg )
682 fgSetDouble("/sim/presets/latitude-deg", parse_degree( arg ));
683 fgSetDouble("/position/latitude-deg", parse_degree( arg ));
684 return FG_OPTIONS_OK;
688 fgOptAltitude( const char *arg )
690 fgSetBool("/sim/presets/onground", false);
691 if ( !strcmp(fgGetString("/sim/startup/units"), "feet") )
692 fgSetDouble("/sim/presets/altitude-ft", atof( arg ));
694 fgSetDouble("/sim/presets/altitude-ft",
695 atof( arg ) * SG_METER_TO_FEET);
696 return FG_OPTIONS_OK;
700 fgOptUBody( const char *arg )
702 fgSetString("/sim/presets/speed-set", "UVW");
703 if ( !strcmp(fgGetString("/sim/startup/units"), "feet") )
704 fgSetDouble("/sim/presets/uBody-fps", atof( arg ));
706 fgSetDouble("/sim/presets/uBody-fps",
707 atof( arg ) * SG_METER_TO_FEET);
708 return FG_OPTIONS_OK;
712 fgOptVBody( const char *arg )
714 fgSetString("/sim/presets/speed-set", "UVW");
715 if ( !strcmp(fgGetString("/sim/startup/units"), "feet") )
716 fgSetDouble("/sim/presets/vBody-fps", atof( arg ));
718 fgSetDouble("/sim/presets/vBody-fps",
719 atof( arg ) * SG_METER_TO_FEET);
720 return FG_OPTIONS_OK;
724 fgOptWBody( const char *arg )
726 fgSetString("/sim/presets/speed-set", "UVW");
727 if ( !strcmp(fgGetString("/sim/startup/units"), "feet") )
728 fgSetDouble("/sim/presets/wBody-fps", atof(arg));
730 fgSetDouble("/sim/presets/wBody-fps",
731 atof(arg) * SG_METER_TO_FEET);
732 return FG_OPTIONS_OK;
736 fgOptVNorth( const char *arg )
738 fgSetString("/sim/presets/speed-set", "NED");
739 if ( !strcmp(fgGetString("/sim/startup/units"), "feet") )
740 fgSetDouble("/sim/presets/speed-north-fps", atof( arg ));
742 fgSetDouble("/sim/presets/speed-north-fps",
743 atof( arg ) * SG_METER_TO_FEET);
744 return FG_OPTIONS_OK;
748 fgOptVEast( const char *arg )
750 fgSetString("/sim/presets/speed-set", "NED");
751 if ( !strcmp(fgGetString("/sim/startup/units"), "feet") )
752 fgSetDouble("/sim/presets/speed-east-fps", atof(arg));
754 fgSetDouble("/sim/presets/speed-east-fps",
755 atof(arg) * SG_METER_TO_FEET);
756 return FG_OPTIONS_OK;
760 fgOptVDown( const char *arg )
762 fgSetString("/sim/presets/speed-set", "NED");
763 if ( !strcmp(fgGetString("/sim/startup/units"), "feet") )
764 fgSetDouble("/sim/presets/speed-down-fps", atof(arg));
766 fgSetDouble("/sim/presets/speed-down-fps",
767 atof(arg) * SG_METER_TO_FEET);
768 return FG_OPTIONS_OK;
772 fgOptVc( const char *arg )
774 // fgSetString("/sim/presets/speed-set", "knots");
775 // fgSetDouble("/velocities/airspeed-kt", atof(arg.substr(5)));
776 fgSetString("/sim/presets/speed-set", "knots");
777 fgSetDouble("/sim/presets/airspeed-kt", atof(arg));
778 return FG_OPTIONS_OK;
782 fgOptMach( const char *arg )
784 fgSetString("/sim/presets/speed-set", "mach");
785 fgSetDouble("/sim/presets/mach", atof(arg));
786 return FG_OPTIONS_OK;
790 fgOptRoc( const char *arg )
792 fgSetDouble("/velocities/vertical-speed-fps", atof(arg)/60);
793 return FG_OPTIONS_OK;
797 fgOptFgRoot( const char *arg )
799 globals->set_fg_root(arg);
800 return FG_OPTIONS_OK;
804 fgOptFgScenery( const char *arg )
806 globals->set_fg_scenery(arg);
807 return FG_OPTIONS_OK;
811 fgOptFov( const char *arg )
814 return FG_OPTIONS_OK;
818 fgOptGeometry( const char *arg )
820 bool geometry_ok = true;
821 int xsize = 0, ysize = 0;
822 string geometry = arg;
823 string::size_type i = geometry.find('x');
825 if (i != string::npos) {
826 xsize = atoi(geometry.substr(0, i));
827 ysize = atoi(geometry.substr(i+1));
832 if ( xsize <= 0 || ysize <= 0 ) {
838 if ( !geometry_ok ) {
839 SG_LOG( SG_GENERAL, SG_ALERT, "Unknown geometry: " << geometry );
840 SG_LOG( SG_GENERAL, SG_ALERT,
841 "Setting geometry to " << xsize << 'x' << ysize << '\n');
843 SG_LOG( SG_GENERAL, SG_INFO,
844 "Setting geometry to " << xsize << 'x' << ysize << '\n');
845 fgSetInt("/sim/startup/xsize", xsize);
846 fgSetInt("/sim/startup/ysize", ysize);
848 return FG_OPTIONS_OK;
852 fgOptBpp( const char *arg )
854 string bits_per_pix = arg;
855 if ( bits_per_pix == "16" ) {
856 fgSetInt("/sim/rendering/bits-per-pixel", 16);
857 } else if ( bits_per_pix == "24" ) {
858 fgSetInt("/sim/rendering/bits-per-pixel", 24);
859 } else if ( bits_per_pix == "32" ) {
860 fgSetInt("/sim/rendering/bits-per-pixel", 32);
862 SG_LOG(SG_GENERAL, SG_ALERT, "Unsupported bpp " << bits_per_pix);
864 return FG_OPTIONS_OK;
868 fgOptTimeOffset( const char *arg )
870 fgSetInt("/sim/startup/time-offset",
871 parse_time_offset( arg ));
872 fgSetString("/sim/startup/time-offset-type", "system-offset");
873 return FG_OPTIONS_OK;
877 fgOptStartDateSys( const char *arg )
879 fgSetInt("/sim/startup/time-offset", parse_date( arg ) );
880 fgSetString("/sim/startup/time-offset-type", "system");
881 return FG_OPTIONS_OK;
885 fgOptStartDateLat( const char *arg )
887 fgSetInt("/sim/startup/time-offset", parse_date( arg ) );
888 fgSetString("/sim/startup/time-offset-type", "latitude");
889 return FG_OPTIONS_OK;
893 fgOptStartDateGmt( const char *arg )
895 fgSetInt("/sim/startup/time-offset", parse_date( arg ) );
896 fgSetString("/sim/startup/time-offset-type", "gmt");
897 return FG_OPTIONS_OK;
900 #ifdef FG_NETWORK_OLK
902 fgOptNetHud( const char *arg )
904 fgSetBool("/sim/hud/net-display", true);
905 net_hud_display = 1; // FIXME
906 return FG_OPTIONS_OK;
911 fgOptTraceRead( const char *arg )
914 SG_LOG(SG_GENERAL, SG_INFO, "Tracing reads for property " << name);
915 fgGetNode(name.c_str(), true)
916 ->setAttribute(SGPropertyNode::TRACE_READ, true);
917 return FG_OPTIONS_OK;
921 fgOptTraceWrite( const char *arg )
924 SG_LOG(SG_GENERAL, SG_INFO, "Tracing writes for property " << name);
925 fgGetNode(name.c_str(), true)
926 ->setAttribute(SGPropertyNode::TRACE_WRITE, true);
927 return FG_OPTIONS_OK;
931 fgOptViewOffset( const char *arg )
933 // $$$ begin - added VS Renganathan, 14 Oct 2K
934 // for multi-window outside window imagery
935 string woffset = arg;
936 double default_view_offset = 0.0;
937 if ( woffset == "LEFT" ) {
938 default_view_offset = SGD_PI * 0.25;
939 } else if ( woffset == "RIGHT" ) {
940 default_view_offset = SGD_PI * 1.75;
941 } else if ( woffset == "CENTER" ) {
942 default_view_offset = 0.00;
944 default_view_offset = atof( woffset.c_str() ) * SGD_DEGREES_TO_RADIANS;
946 /* apparently not used (CLO, 11 Jun 2002)
947 FGViewer *pilot_view =
948 (FGViewer *)globals->get_viewmgr()->get_view( 0 ); */
949 // this will work without calls to the viewer...
950 fgSetDouble( "/sim/current-view/heading-offset-deg",
951 default_view_offset * SGD_RADIANS_TO_DEGREES );
952 // $$$ end - added VS Renganathan, 14 Oct 2K
953 return FG_OPTIONS_OK;
957 fgOptVisibilityMeters( const char *arg )
959 double visibility = atof( arg );
960 fgDefaultWeatherValue("visibility-m", visibility);
961 return FG_OPTIONS_OK;
965 fgOptVisibilityMiles( const char *arg )
967 double visibility = atof( arg ) * 5280.0 * SG_FEET_TO_METER;
968 fgDefaultWeatherValue("visibility-m", visibility);
969 return FG_OPTIONS_OK;
973 fgOptRandomWind( const char *arg )
975 double min_hdg = sg_random() * 360.0;
976 double max_hdg = min_hdg + (20 - sqrt(sg_random() * 400));
977 double speed = 40 - sqrt(sg_random() * 1600.0);
978 double gust = speed + (10 - sqrt(sg_random() * 100));
979 setup_wind(min_hdg, max_hdg, speed, gust);
980 return FG_OPTIONS_OK;
984 fgOptWind( const char *arg )
986 double min_hdg, max_hdg, speed, gust;
987 if (!parse_wind( arg, &min_hdg, &max_hdg, &speed, &gust)) {
988 SG_LOG( SG_GENERAL, SG_ALERT, "bad wind value " << arg );
989 return FG_OPTIONS_ERROR;
991 setup_wind(min_hdg, max_hdg, speed, gust);
992 return FG_OPTIONS_OK;
996 fgOptTurbulence( const char *arg)
998 fgDefaultWeatherValue("turbulence-norm", atof(arg));
999 return FG_OPTIONS_OK;
1003 fgOptWp( const char *arg )
1006 return FG_OPTIONS_OK;
1010 fgOptFlightPlan( const char *arg )
1012 parse_flightplan ( arg );
1013 return FG_OPTIONS_OK;
1017 fgOptConfig( const char *arg )
1021 readProperties(file, globals->get_props());
1022 } catch (const sg_exception &e) {
1023 string message = "Error loading config file: ";
1024 message += e.getFormattedMessage();
1025 SG_LOG(SG_INPUT, SG_ALERT, message);
1028 return FG_OPTIONS_OK;
1031 static map<string,size_t> fgOptionMap;
1034 option has_param type property b_param s_param func
1037 option : name of the option
1038 has_param : option is --name=value if true or --name if false
1039 type : OPTION_BOOL - property is a boolean
1040 OPTION_STRING - property is a string
1041 OPTION_DOUBLE - property is a double
1042 OPTION_INT - property is an integer
1043 OPTION_CHANNEL - name of option is the name of a channel
1044 OPTION_FUNC - the option trigger a function
1045 b_param : if type==OPTION_BOOL,
1046 value set to the property (has_param is false for boolean)
1047 s_param : if type==OPTION_STRING,
1048 value set to the property if has_param is false
1049 func : function called if type==OPTION_FUNC. if has_param is true,
1050 the value is passed to the function as a string, otherwise,
1053 For OPTION_DOUBLE and OPTION_INT, the parameter value is converted into a
1054 double or an integer and set to the property.
1056 For OPTION_CHANNEL, add_channel is called with the parameter value as the
1060 enum OptionType { OPTION_BOOL, OPTION_STRING, OPTION_DOUBLE, OPTION_INT, OPTION_CHANNEL, OPTION_FUNC };
1064 enum OptionType type;
1068 int (*func)( const char * );
1069 } fgOptionArray[] = {
1071 {"language", true, OPTION_FUNC, "", false, "", fgOptLanguage },
1072 {"disable-game-mode", false, OPTION_BOOL, "/sim/startup/game-mode", false, "", 0 },
1073 {"enable-game-mode", false, OPTION_BOOL, "/sim/startup/game-mode", true, "", 0 },
1074 {"disable-splash-screen", false, OPTION_BOOL, "/sim/startup/splash-screen", false, "", 0 },
1075 {"enable-splash-screen", false, OPTION_BOOL, "/sim/startup/splash-screen", true, "", 0 },
1076 {"disable-intro-music", false, OPTION_BOOL, "/sim/startup/intro-music", false, "", 0 },
1077 {"enable-intro-music", false, OPTION_BOOL, "/sim/startup/intro-music", true, "", 0 },
1078 {"disable-mouse-pointer", false, OPTION_STRING, "/sim/startup/mouse-pointer", false, "disabled", 0 },
1079 {"enable-mouse-pointer", false, OPTION_STRING, "/sim/startup/mouse-pointer", false, "enabled", 0 },
1080 {"disable-random-objects", false, OPTION_BOOL, "/sim/rendering/random-objects", false, "", 0 },
1081 {"enable-random-objects", false, OPTION_BOOL, "/sim/rendering/random-objects", true, "", 0 },
1082 {"disable-freeze", false, OPTION_BOOL, "/sim/freeze/master", false, "", 0 },
1083 {"enable-freeze", false, OPTION_BOOL, "/sim/freeze/master", true, "", 0 },
1084 {"disable-fuel-freeze", false, OPTION_BOOL, "/sim/freeze/fuel", false, "", 0 },
1085 {"enable-fuel-freeze", false, OPTION_BOOL, "/sim/freeze/fuel", true, "", 0 },
1086 {"disable-clock-freeze", false, OPTION_BOOL, "/sim/freeze/clock", false, "", 0 },
1087 {"enable-clock-freeze", false, OPTION_BOOL, "/sim/freeze/clock", true, "", 0 },
1088 {"disable-anti-alias-hud", false, OPTION_BOOL, "/sim/hud/antialiased", false, "", 0 },
1089 {"enable-anti-alias-hud", false, OPTION_BOOL, "/sim/hud/antialiased", true, "", 0 },
1090 {"control", true, OPTION_STRING, "/sim/control-mode", false, "", 0 },
1091 {"disable-auto-coordination", false, OPTION_BOOL, "/sim/auto-coordination", false, "", 0 },
1092 {"enable-auto-coordination", false, OPTION_BOOL, "/sim/auto-coordination", true, "", 0 },
1093 {"browser-app", true, OPTION_STRING, "/sim/startup/browser-app", false, "", 0 },
1094 {"disable-hud", false, OPTION_BOOL, "/sim/hud/visibility", false, "", 0 },
1095 {"enable-hud", false, OPTION_BOOL, "/sim/hud/visibility", true, "", 0 },
1096 {"disable-panel", false, OPTION_BOOL, "/sim/panel/visibility", false, "", 0 },
1097 {"enable-panel", false, OPTION_BOOL, "/sim/panel/visibility", true, "", 0 },
1098 {"disable-sound", false, OPTION_BOOL, "/sim/sound/audible", false, "", 0 },
1099 {"enable-sound", false, OPTION_BOOL, "/sim/sound/audible", true, "", 0 },
1100 {"airport", true, OPTION_STRING, "/sim/presets/airport-id", false, "", 0 },
1101 {"airport-id", true, OPTION_STRING, "/sim/presets/airport-id", false, "", 0 },
1102 {"runway", true, OPTION_STRING, "/sim/presets/runway", false, "", 0 },
1103 {"vor", true, OPTION_FUNC, "", false, "", fgOptVOR },
1104 {"ndb", true, OPTION_FUNC, "", false, "", fgOptNDB },
1105 {"fix", true, OPTION_FUNC, "", false, "", fgOptFIX },
1106 {"offset-distance", true, OPTION_DOUBLE, "/sim/presets/offset-distance", false, "", 0 },
1107 {"offset-azimuth", true, OPTION_DOUBLE, "/sim/presets/offset-azimuth", false, "", 0 },
1108 {"lon", true, OPTION_FUNC, "", false, "", fgOptLon },
1109 {"lat", true, OPTION_FUNC, "", false, "", fgOptLat },
1110 {"altitude", true, OPTION_FUNC, "", false, "", fgOptAltitude },
1111 {"uBody", true, OPTION_FUNC, "", false, "", fgOptUBody },
1112 {"vBody", true, OPTION_FUNC, "", false, "", fgOptVBody },
1113 {"wBody", true, OPTION_FUNC, "", false, "", fgOptWBody },
1114 {"vNorth", true, OPTION_FUNC, "", false, "", fgOptVNorth },
1115 {"vEast", true, OPTION_FUNC, "", false, "", fgOptVEast },
1116 {"vDown", true, OPTION_FUNC, "", false, "", fgOptVDown },
1117 {"vc", true, OPTION_FUNC, "", false, "", fgOptVc },
1118 {"mach", true, OPTION_FUNC, "", false, "", fgOptMach },
1119 {"heading", true, OPTION_DOUBLE, "/sim/presets/heading-deg", false, "", 0 },
1120 {"roll", true, OPTION_DOUBLE, "/sim/presets/roll-deg", false, "", 0 },
1121 {"pitch", true, OPTION_DOUBLE, "/sim/presets/pitch-deg", false, "", 0 },
1122 {"glideslope", true, OPTION_DOUBLE, "/sim/presets/glideslope-deg", false, "", 0 },
1123 {"roc", true, OPTION_FUNC, "", false, "", fgOptRoc },
1124 {"fg-root", true, OPTION_FUNC, "", false, "", fgOptFgRoot },
1125 {"fg-scenery", true, OPTION_FUNC, "", false, "", fgOptFgScenery },
1126 {"fdm", true, OPTION_STRING, "/sim/flight-model", false, "", 0 },
1127 {"aero", true, OPTION_STRING, "/sim/aero", false, "", 0 },
1128 {"aircraft-dir", true, OPTION_STRING, "/sim/aircraft-dir", false, "", 0 },
1129 {"model-hz", true, OPTION_INT, "/sim/model-hz", false, "", 0 },
1130 {"speed", true, OPTION_INT, "/sim/speed-up", false, "", 0 },
1131 {"trim", false, OPTION_BOOL, "/sim/presets/trim", true, "", 0 },
1132 {"notrim", false, OPTION_BOOL, "/sim/presets/trim", false, "", 0 },
1133 {"on-ground", false, OPTION_BOOL, "/sim/presets/onground", true, "", 0 },
1134 {"in-air", false, OPTION_BOOL, "/sim/presets/onground", false, "", 0 },
1135 {"fog-disable", false, OPTION_STRING, "/sim/rendering/fog", false, "disabled", 0 },
1136 {"fog-fastest", false, OPTION_STRING, "/sim/rendering/fog", false, "fastest", 0 },
1137 {"fog-nicest", false, OPTION_STRING, "/sim/rendering/fog", false, "nicest", 0 },
1138 {"disable-horizon-effect", false, OPTION_BOOL, "/sim/rendering/horizon-effect", false, "", 0 },
1139 {"enable-horizon-effect", false, OPTION_BOOL, "/sim/rendering/horizon-effect", true, "", 0 },
1140 {"disable-enhanced-lighting", false, OPTION_BOOL, "/sim/rendering/enhanced-lighting", false, "", 0 },
1141 {"enable-enhanced-lighting", false, OPTION_BOOL, "/sim/rendering/enhanced-lighting", true, "", 0 },
1142 {"disable-distance-attenuation", false, OPTION_BOOL, "/sim/rendering/distance-attenuation", false, "", 0 },
1143 {"enable-distance-attenuation", false, OPTION_BOOL, "/sim/rendering/distance-attenuation", true, "", 0 },
1144 {"disable-clouds", false, OPTION_BOOL, "/environment/clouds/status", false, "", 0 },
1145 {"enable-clouds", false, OPTION_BOOL, "/environment/clouds/status", true, "", 0 },
1146 #ifdef FG_USE_CLOUDS_3D
1147 {"disable-clouds3d", false, OPTION_BOOL, "/sim/rendering/clouds3d", false, "", 0 },
1148 {"enable-clouds3d", false, OPTION_BOOL, "/sim/rendering/clouds3d", true, "", 0 },
1150 {"fov", true, OPTION_FUNC, "", false, "", fgOptFov },
1151 {"disable-fullscreen", false, OPTION_BOOL, "/sim/startup/fullscreen", false, "", 0 },
1152 {"enable-fullscreen", false, OPTION_BOOL, "/sim/startup/fullscreen", true, "", 0 },
1153 {"shading-flat", false, OPTION_BOOL, "/sim/rendering/shading", false, "", 0 },
1154 {"shading-smooth", false, OPTION_BOOL, "/sim/rendering/shading", true, "", 0 },
1155 {"disable-skyblend", false, OPTION_BOOL, "/sim/rendering/skyblend", false, "", 0 },
1156 {"enable-skyblend", false, OPTION_BOOL, "/sim/rendering/skyblend", true, "", 0 },
1157 {"disable-textures", false, OPTION_BOOL, "/sim/rendering/textures", false, "", 0 },
1158 {"enable-textures", false, OPTION_BOOL, "/sim/rendering/textures", true, "", 0 },
1159 {"disable-wireframe", false, OPTION_BOOL, "/sim/rendering/wireframe", false, "", 0 },
1160 {"enable-wireframe", false, OPTION_BOOL, "/sim/rendering/wireframe", true, "", 0 },
1161 {"geometry", true, OPTION_FUNC, "", false, "", fgOptGeometry },
1162 {"bpp", true, OPTION_FUNC, "", false, "", fgOptBpp },
1163 {"units-feet", false, OPTION_STRING, "/sim/startup/units", false, "feet", 0 },
1164 {"units-meters", false, OPTION_STRING, "/sim/startup/units", false, "meters", 0 },
1165 {"time-offset", true, OPTION_FUNC, "", false, "", fgOptTimeOffset },
1166 {"time-match-real", false, OPTION_STRING, "/sim/startup/time-offset-type", false, "system-offset", 0 },
1167 {"time-match-local", false, OPTION_STRING, "/sim/startup/time-offset-type", false, "latitude-offset", 0 },
1168 {"start-date-sys", true, OPTION_FUNC, "", false, "", fgOptStartDateSys },
1169 {"start-date-lat", true, OPTION_FUNC, "", false, "", fgOptStartDateLat },
1170 {"start-date-gmt", true, OPTION_FUNC, "", false, "", fgOptStartDateGmt },
1171 {"hud-tris", false, OPTION_STRING, "/sim/hud/frame-stat-type", false, "tris", 0 },
1172 {"hud-culled", false, OPTION_STRING, "/sim/hud/frame-stat-type", false, "culled", 0 },
1173 {"atc610x", true, OPTION_CHANNEL, "", false, "dummy", 0 },
1174 {"atlas", true, OPTION_CHANNEL, "", false, "", 0 },
1175 {"httpd", true, OPTION_CHANNEL, "", false, "", 0 },
1176 #ifdef FG_JPEG_SERVER
1177 {"jpg-httpd", true, OPTION_CHANNEL, "", false, "", 0 },
1179 {"native", true, OPTION_CHANNEL, "", false, "", 0 },
1180 {"native-ctrls", true, OPTION_CHANNEL, "", false, "", 0 },
1181 {"native-fdm", true, OPTION_CHANNEL, "", false, "", 0 },
1182 {"native-gui", true, OPTION_CHANNEL, "", false, "", 0 },
1183 {"opengc", true, OPTION_CHANNEL, "", false, "", 0 },
1184 {"garmin", true, OPTION_CHANNEL, "", false, "", 0 },
1185 {"nmea", true, OPTION_CHANNEL, "", false, "", 0 },
1186 {"generic", true, OPTION_CHANNEL, "", false, "", 0 },
1187 {"props", true, OPTION_CHANNEL, "", false, "", 0 },
1188 {"telnet", true, OPTION_CHANNEL, "", false, "", 0 },
1189 {"pve", true, OPTION_CHANNEL, "", false, "", 0 },
1190 {"ray", true, OPTION_CHANNEL, "", false, "", 0 },
1191 {"rul", true, OPTION_CHANNEL, "", false, "", 0 },
1192 {"joyclient", true, OPTION_CHANNEL, "", false, "", 0 },
1193 #ifdef FG_NETWORK_OLK
1194 {"disable-network-olk", false, OPTION_BOOL, "/sim/networking/olk", false, "", 0 },
1195 {"enable-network-olk", false, OPTION_BOOL, "/sim/networking/olk", true, "", 0 },
1196 {"net-hud", false, OPTION_FUNC, "", false, "", fgOptNetHud },
1197 {"net-id", true, OPTION_STRING, "sim/networking/call-sign", false, "", 0 },
1199 #ifdef FG_MPLAYER_AS
1200 {"callsign", true, OPTION_STRING, "sim/multiplay/callsign", false, "", 0 },
1201 {"multiplay", true, OPTION_CHANNEL, "", false, "", 0 },
1203 {"trace-read", true, OPTION_FUNC, "", false, "", fgOptTraceRead },
1204 {"trace-write", true, OPTION_FUNC, "", false, "", fgOptTraceWrite },
1205 {"log-level", true, OPTION_INT, "/sim/log-level", false, "", 0 },
1206 {"view-offset", true, OPTION_FUNC, "", false, "", fgOptViewOffset },
1207 {"visibility", true, OPTION_FUNC, "", false, "", fgOptVisibilityMeters },
1208 {"visibility-miles", true, OPTION_FUNC, "", false, "", fgOptVisibilityMiles },
1209 {"random-wind", false, OPTION_FUNC, "", false, "", fgOptRandomWind },
1210 {"wind", true, OPTION_FUNC, "", false, "", fgOptWind },
1211 {"turbulence", true, OPTION_FUNC, "", false, "", fgOptTurbulence },
1212 {"wp", true, OPTION_FUNC, "", false, "", fgOptWp },
1213 {"flight-plan", true, OPTION_FUNC, "", false, "", fgOptFlightPlan },
1214 {"config", true, OPTION_FUNC, "", false, "", fgOptConfig },
1215 {"aircraft", true, OPTION_STRING, "/sim/aircraft", false, "", 0 },
1220 // Parse a single option
1222 parse_option (const string& arg)
1224 if ( fgOptionMap.size() == 0 ) {
1226 OptionDesc *pt = &fgOptionArray[ 0 ];
1227 while ( pt->option != 0 ) {
1228 fgOptionMap[ pt->option ] = i;
1235 if ( (arg == "--help") || (arg == "-h") ) {
1236 // help/usage request
1237 return(FG_OPTIONS_HELP);
1238 } else if ( (arg == "--verbose") || (arg == "-v") ) {
1239 // verbose help/usage request
1240 return(FG_OPTIONS_VERBOSE_HELP);
1241 } else if ( arg.find( "--show-aircraft") == 0) {
1242 return(FG_OPTIONS_SHOW_AIRCRAFT);
1243 } else if ( arg.find( "--prop:" ) == 0 ) {
1244 string assign = arg.substr(7);
1245 string::size_type pos = assign.find('=');
1246 if ( pos == arg.npos || pos == 0 ) {
1247 SG_LOG( SG_GENERAL, SG_ALERT, "Bad property assignment: " << arg );
1248 return FG_OPTIONS_ERROR;
1250 string name = assign.substr(0, pos);
1251 string value = assign.substr(pos + 1);
1252 fgSetString(name.c_str(), value.c_str());
1253 // SG_LOG(SG_GENERAL, SG_INFO, "Setting default value of property "
1254 // << name << " to \"" << value << '"');
1255 } else if ( arg.find( "--" ) == 0 ) {
1256 size_t pos = arg.find( '=' );
1258 if ( pos == string::npos ) {
1259 arg_name = arg.substr( 2 );
1261 arg_name = arg.substr( 2, pos - 2 );
1263 map<string,size_t>::iterator it = fgOptionMap.find( arg_name );
1264 if ( it != fgOptionMap.end() ) {
1265 OptionDesc *pt = &fgOptionArray[ it->second ];
1266 switch ( pt->type ) {
1268 fgSetBool( pt->property, pt->b_param );
1271 if ( pt->has_param && pos != string::npos ) {
1272 fgSetString( pt->property, arg.substr( pos + 1 ).c_str() );
1273 } else if ( !pt->has_param && pos == string::npos ) {
1274 fgSetString( pt->property, pt->s_param );
1275 } else if ( pt->has_param ) {
1276 SG_LOG( SG_GENERAL, SG_ALERT, "Option '" << arg << "' needs a parameter" );
1277 return FG_OPTIONS_ERROR;
1279 SG_LOG( SG_GENERAL, SG_ALERT, "Option '" << arg << "' does not have a parameter" );
1280 return FG_OPTIONS_ERROR;
1284 if ( pos != string::npos ) {
1285 fgSetDouble( pt->property, atof( arg.substr( pos + 1 ) ) );
1287 SG_LOG( SG_GENERAL, SG_ALERT, "Option '" << arg << "' needs a parameter" );
1288 return FG_OPTIONS_ERROR;
1292 if ( pos != string::npos ) {
1293 fgSetInt( pt->property, atoi( arg.substr( pos + 1 ) ) );
1295 SG_LOG( SG_GENERAL, SG_ALERT, "Option '" << arg << "' needs a parameter" );
1296 return FG_OPTIONS_ERROR;
1299 case OPTION_CHANNEL:
1300 if ( pt->has_param && pos != string::npos ) {
1301 add_channel( pt->option, arg.substr( pos + 1 ) );
1302 } else if ( !pt->has_param && pos == string::npos ) {
1303 add_channel( pt->option, pt->s_param );
1304 } else if ( pt->has_param ) {
1305 SG_LOG( SG_GENERAL, SG_ALERT, "Option '" << arg << "' needs a parameter" );
1306 return FG_OPTIONS_ERROR;
1308 SG_LOG( SG_GENERAL, SG_ALERT, "Option '" << arg << "' does not have a parameter" );
1309 return FG_OPTIONS_ERROR;
1313 if ( pt->has_param && pos != string::npos ) {
1314 return pt->func( arg.substr( pos + 1 ).c_str() );
1315 } else if ( !pt->has_param && pos == string::npos ) {
1316 return pt->func( 0 );
1317 } else if ( pt->has_param ) {
1318 SG_LOG( SG_GENERAL, SG_ALERT, "Option '" << arg << "' needs a parameter" );
1319 return FG_OPTIONS_ERROR;
1321 SG_LOG( SG_GENERAL, SG_ALERT, "Option '" << arg << "' does not have a parameter" );
1322 return FG_OPTIONS_ERROR;
1327 SG_LOG( SG_GENERAL, SG_ALERT, "Unknown option '" << arg << "'" );
1328 return FG_OPTIONS_ERROR;
1331 SG_LOG( SG_GENERAL, SG_ALERT, "Unknown option '" << arg << "'" );
1332 return FG_OPTIONS_ERROR;
1335 return FG_OPTIONS_OK;
1339 // Parse the command line options
1341 fgParseArgs (int argc, char **argv)
1343 bool in_options = true;
1344 bool verbose = false;
1347 SG_LOG(SG_GENERAL, SG_INFO, "Processing command line arguments");
1349 for (int i = 1; i < argc; i++) {
1350 string arg = argv[i];
1352 if (in_options && (arg.find('-') == 0)) {
1356 int result = parse_option(arg);
1357 if ((result == FG_OPTIONS_HELP) || (result == FG_OPTIONS_ERROR))
1360 else if (result == FG_OPTIONS_VERBOSE_HELP)
1363 else if (result == FG_OPTIONS_SHOW_AIRCRAFT) {
1370 SG_LOG(SG_GENERAL, SG_INFO,
1371 "Reading command-line property file " << arg);
1372 readProperties(arg, globals->get_props());
1381 SG_LOG(SG_GENERAL, SG_INFO, "Finished command line arguments");
1385 // Parse config file options
1387 fgParseOptions (const string& path) {
1388 sg_gzifstream in( path );
1389 if ( !in.is_open() ) {
1393 SG_LOG( SG_GENERAL, SG_INFO, "Processing config file: " << path );
1397 while ( ! in.eof() ) {
1400 while ( in.get(c) && c != '\0' ) {
1405 #if defined( macintosh )
1406 getline( in, line, '\r' );
1408 getline( in, line, '\n' );
1411 // catch extraneous (DOS) line ending character
1412 if ( line[line.length() - 1] < 32 ) {
1413 line = line.substr( 0, line.length()-1 );
1416 if ( parse_option( line ) == FG_OPTIONS_ERROR ) {
1417 cerr << endl << "Config file parse error: " << path << " '"
1418 << line << "'" << endl;
1427 // Print usage message
1429 fgUsage (bool verbose)
1431 SGPropertyNode *locale = globals->get_locale();
1433 SGPropertyNode options_root;
1438 fgLoadProps("options.xml", &options_root);
1439 } catch (const sg_exception &ex) {
1440 cout << "Unable to read the help file." << endl;
1441 cout << "Make sure the file options.xml is located in the FlightGear base directory," << endl;
1442 cout << "and the location of the base directory is specified by setting $FG_ROOT or" << endl;
1443 cout << "by adding --fg-root=path as a program argument." << endl;
1448 SGPropertyNode *options = options_root.getNode("options");
1450 SG_LOG( SG_GENERAL, SG_ALERT,
1451 "Error reading options.xml: <options> directive not found." );
1455 SGPropertyNode *usage = locale->getNode(options->getStringValue("usage"));
1457 cout << "Usage: " << usage->getStringValue() << endl;
1460 vector<SGPropertyNode_ptr>section = options->getChildren("section");
1461 for (unsigned int j = 0; j < section.size(); j++) {
1464 vector<SGPropertyNode_ptr>option = section[j]->getChildren("option");
1465 for (unsigned int k = 0; k < option.size(); k++) {
1467 SGPropertyNode *name = option[k]->getNode("name");
1468 SGPropertyNode *short_name = option[k]->getNode("short");
1469 SGPropertyNode *key = option[k]->getNode("key");
1470 SGPropertyNode *arg = option[k]->getNode("arg");
1471 bool brief = option[k]->getNode("brief");
1473 if ((brief || verbose) && name) {
1474 string tmp = name->getStringValue();
1478 tmp.append(key->getStringValue());
1482 tmp.append(arg->getStringValue());
1486 tmp.append(short_name->getStringValue());
1490 if (tmp.size() <= 25) {
1491 snprintf(cstr, 96, " --%-27s", tmp.c_str());
1493 snprintf(cstr, 96, "\n --%s\n%32c", tmp.c_str(), ' ');
1496 // There may be more than one <description> tag assosiated
1500 vector<SGPropertyNode_ptr>desc =
1501 option[k]->getChildren("description");
1503 if (desc.size() > 0) {
1504 for ( unsigned int l = 0; l < desc.size(); l++) {
1506 // There may be more than one translation line.
1508 string t = desc[l]->getStringValue();
1509 SGPropertyNode *n = locale->getNode("strings");
1510 vector<SGPropertyNode_ptr>trans_desc =
1511 n->getChildren(t.substr(8).c_str());
1513 for ( unsigned int m = 0; m < trans_desc.size(); m++ ) {
1514 string t_str = trans_desc[m]->getStringValue();
1516 if ((m > 0) || ((l > 0) && m == 0)) {
1517 snprintf(cstr, 96, "%32c", ' ');
1522 // If the string is too large to fit on the screen,
1523 // then split it up in several pieces.
1525 while ( t_str.size() > 47 ) {
1527 unsigned int m = t_str.rfind(' ', 47);
1528 msg += t_str.substr(0, m);
1529 snprintf(cstr, 96, "\n%32c", ' ');
1532 t_str.erase(t_str.begin(), t_str.begin() + m + 1);
1534 msg += t_str + '\n';
1541 SGPropertyNode *name =
1542 locale->getNode(section[j]->getStringValue("name"));
1544 if (!msg.empty() && name) {
1545 cout << endl << name->getStringValue() << ":" << endl;
1553 cout << "For a complete list of options use --help --verbose" << endl;
1557 // Show available aircraft types
1558 void fgShowAircraft(void) {
1559 vector<string> aircraft;
1561 SGPath path( globals->get_fg_root() );
1562 path.append("Aircraft");
1567 dirp = ulOpenDir(path.c_str());
1569 cerr << "Unable to open aircraft directory." << endl;
1573 while ((dire = ulReadDir(dirp)) != NULL) {
1576 if ((ptr = strstr(dire->d_name, "-set.xml")) && ptr[8] == '\0' ) {
1577 SGPath afile = path;
1578 afile.append(dire->d_name);
1582 SGPropertyNode root;
1584 readProperties(afile.str(), &root);
1589 SGPropertyNode *desc = NULL;
1590 SGPropertyNode *node = root.getNode("sim");
1592 desc = node->getNode("description");
1596 if (strlen(dire->d_name) <= 27)
1597 snprintf(cstr, 96, " %-27s %s", dire->d_name,
1598 (desc) ? desc->getStringValue() : "" );
1601 snprintf(cstr, 96, " %-27s\n%32c%s", dire->d_name, ' ',
1602 (desc) ? desc->getStringValue() : "" );
1604 aircraft.push_back(cstr);
1608 sort(aircraft.begin(), aircraft.end());
1609 cout << "Available aircraft:" << endl;
1610 for ( unsigned int i = 0; i < aircraft.size(); i++ ) {
1611 cout << aircraft[i] << endl;