1 // fg_props.cxx -- support for FlightGear properties.
3 // Written by David Megginson, started 2000.
5 // Copyright (C) 2000, 2001 David Megginson - david@megginson.com
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.
24 # include <simgear/compiler.h>
27 #include <simgear/misc/exception.hxx>
31 #include <ATC/ATCdisplay.hxx>
32 #include <Autopilot/newauto.hxx>
33 #include <Aircraft/aircraft.hxx>
34 #include <Time/tmp.hxx>
35 #include <FDM/UIUCModel/uiuc_aircraftdir.h>
36 #ifndef FG_OLD_WEATHER
37 # include <WeatherCM/FGLocalWeatherDatabase.h>
39 # include <Weather/weather.hxx>
41 #include <Objects/matlib.hxx>
45 #include "globals.hxx"
47 #include "fg_props.hxx"
48 #include "viewmgr.hxx"
50 #if !defined(SG_HAVE_NATIVE_SGI_COMPILERS)
51 SG_USING_STD(istream);
52 SG_USING_STD(ostream);
55 static double getWindNorth ();
56 static double getWindEast ();
57 static double getWindDown ();
59 // Allow the view to be set from two axes (i.e. a joystick hat)
60 // This needs to be in FGViewer itself, somehow.
61 static double axisLong = 0.0;
62 static double axisLat = 0.0;
64 static bool winding_ccw = true; // FIXME: temporary
66 static bool fdm_data_logging = false; // FIXME: temporary
73 _set_view_from_axes ()
75 // Take no action when hat is centered
76 if ( ( axisLong < 0.01 ) &&
77 ( axisLong > -0.01 ) &&
85 /* Do all the quick and easy cases */
86 if (axisLong < 0) { // Longitudinal axis forward
87 if (axisLat == axisLong)
89 else if (axisLat == - axisLong)
91 else if (axisLat == 0)
93 } else if (axisLong > 0) { // Longitudinal axis backward
94 if (axisLat == - axisLong)
96 else if (axisLat == axisLong)
98 else if (axisLat == 0)
100 } else if (axisLong == 0) { // Longitudinal axis neutral
103 else if (axisLat > 0)
105 else return; /* And assertion failure maybe? */
108 /* Do all the difficult cases */
110 viewDir = SGD_RADIANS_TO_DEGREES * atan2 ( -axisLat, -axisLong );
111 if ( viewDir < -1 ) viewDir += 360;
113 // SG_LOG(SG_INPUT, SG_ALERT, "Joystick Lat=" << axisLat << " and Long="
114 // << axisLong << " gave angle=" << viewDir );
116 globals->get_current_view()->set_goal_view_offset(viewDir*SGD_DEGREES_TO_RADIANS);
117 // globals->get_current_view()->set_view_offset(viewDir*SGD_DEGREES_TO_RADIANS);
121 ////////////////////////////////////////////////////////////////////////
122 // Default property bindings (not yet handled by any module).
123 ////////////////////////////////////////////////////////////////////////
125 struct LogClassMapping {
128 LogClassMapping(sgDebugClass cc, string nname) { c = cc; name = nname; }
131 LogClassMapping log_class_mappings [] = {
132 LogClassMapping(SG_NONE, "none"),
133 LogClassMapping(SG_TERRAIN, "terrain"),
134 LogClassMapping(SG_ASTRO, "astro"),
135 LogClassMapping(SG_FLIGHT, "flight"),
136 LogClassMapping(SG_INPUT, "input"),
137 LogClassMapping(SG_GL, "gl"),
138 LogClassMapping(SG_VIEW, "view"),
139 LogClassMapping(SG_COCKPIT, "cockpit"),
140 LogClassMapping(SG_GENERAL, "general"),
141 LogClassMapping(SG_MATH, "math"),
142 LogClassMapping(SG_EVENT, "event"),
143 LogClassMapping(SG_AIRCRAFT, "aircraft"),
144 LogClassMapping(SG_AUTOPILOT, "autopilot"),
145 LogClassMapping(SG_IO, "io"),
146 LogClassMapping(SG_CLIPPER, "clipper"),
147 LogClassMapping(SG_NETWORK, "network"),
148 LogClassMapping(SG_UNDEFD, "")
153 * Get the logging classes.
158 sgDebugClass classes = logbuf::get_log_classes();
160 for (int i = 0; log_class_mappings[i].c != SG_UNDEFD; i++) {
161 if ((classes&log_class_mappings[i].c) > 0) {
162 if (result != (string)"")
164 result += log_class_mappings[i].name;
171 static void addLoggingClass (const string &name)
173 sgDebugClass classes = logbuf::get_log_classes();
174 for (int i = 0; log_class_mappings[i].c != SG_UNDEFD; i++) {
175 if (name == log_class_mappings[i].name) {
176 logbuf::set_log_classes(sgDebugClass(classes|log_class_mappings[i].c));
180 SG_LOG(SG_GENERAL, SG_ALERT, "Unknown logging class: " << name);
185 * Set the logging classes.
188 setLoggingClasses (string classes)
190 logbuf::set_log_classes(SG_NONE);
192 if (classes == "none") {
193 SG_LOG(SG_GENERAL, SG_INFO, "Disabled all logging classes");
197 if (classes == "" || classes == "all") { // default
198 logbuf::set_log_classes(SG_ALL);
199 SG_LOG(SG_GENERAL, SG_INFO, "Enabled all logging classes: "
200 << getLoggingClasses());
204 string rest = classes;
206 int sep = rest.find('|');
208 name = rest.substr(0, sep);
209 rest = rest.substr(sep+1);
210 addLoggingClass(name);
211 sep = rest.find('|');
213 addLoggingClass(rest);
214 SG_LOG(SG_GENERAL, SG_INFO, "Set logging classes to "
215 << getLoggingClasses());
220 * Get the logging priority.
223 getLoggingPriority ()
225 switch (logbuf::get_log_priority()) {
237 SG_LOG(SG_GENERAL, SG_WARN, "Internal: Unknown logging priority number: "
238 << logbuf::get_log_priority());
245 * Set the logging priority.
248 setLoggingPriority (string priority)
250 if (priority == "bulk") {
251 logbuf::set_log_priority(SG_BULK);
252 } else if (priority == "debug") {
253 logbuf::set_log_priority(SG_DEBUG);
254 } else if (priority == "" || priority == "info") { // default
255 logbuf::set_log_priority(SG_INFO);
256 } else if (priority == "warn") {
257 logbuf::set_log_priority(SG_WARN);
258 } else if (priority == "alert") {
259 logbuf::set_log_priority(SG_ALERT);
261 SG_LOG(SG_GENERAL, SG_WARN, "Unknown logging priority " << priority);
263 SG_LOG(SG_GENERAL, SG_INFO, "Logging priority is " << getLoggingPriority());
269 * Get the pause state of the sim.
274 return globals->get_freeze();
279 * Set the pause state of the sim.
282 setFreeze (bool freeze)
284 globals->set_freeze(freeze);
287 current_atcdisplay->CancelRepeatingMessage();
288 current_atcdisplay->RegisterRepeatingMessage("**** SIM IS FROZEN **** SIM IS FROZEN ****");
291 current_atcdisplay->CancelRepeatingMessage();
297 * Return the current aircraft directory (UIUC) as a string.
307 * Set the current aircraft directory (UIUC).
310 setAircraftDir (string dir)
312 if (getAircraftDir() != dir) {
314 // needReinit(); FIXME!!
320 * Get the current view offset in degrees.
325 return (globals->get_current_view()
326 ->get_view_offset() * SGD_RADIANS_TO_DEGREES);
331 setViewOffset (double offset)
333 globals->get_current_view()->set_view_offset(offset * SGD_DEGREES_TO_RADIANS);
339 return (globals->get_current_view()
340 ->get_goal_view_offset() * SGD_RADIANS_TO_DEGREES);
344 setGoalViewOffset (double offset)
346 while ( offset < 0 ) {
349 while ( offset > 360.0 ) {
352 // Snap to center if we are close
353 if ( fabs(offset) < 1.0 || fabs(offset) > 359.0 ) {
357 globals->get_current_view()
358 ->set_goal_view_offset(offset * SGD_DEGREES_TO_RADIANS);
362 * Get the current view tilt in degrees.
367 return (globals->get_current_view()
368 ->get_view_tilt() * SGD_RADIANS_TO_DEGREES);
373 setViewTilt (double tilt)
375 globals->get_current_view()->set_view_tilt(tilt * SGD_DEGREES_TO_RADIANS);
381 return (globals->get_current_view()
382 ->get_goal_view_tilt() * SGD_RADIANS_TO_DEGREES);
386 setGoalViewTilt (double tilt)
391 while ( tilt > 360.0 ) {
394 // Snap to center if we are close
395 if ( fabs(tilt) < 1.0 || fabs(tilt) > 359.0 ) {
399 globals->get_current_view()
400 ->set_goal_view_tilt(tilt * SGD_DEGREES_TO_RADIANS);
405 * Pilot position offset from CG.
408 getPilotPositionXOffset ()
410 FGViewer * pilot_view = globals->get_viewmgr()->get_view(0);
411 float * offset = pilot_view->get_pilot_offset();
416 setPilotPositionXOffset (float x)
418 FGViewer * pilot_view = globals->get_viewmgr()->get_view(0);
419 float * offset = pilot_view->get_pilot_offset();
420 pilot_view->set_pilot_offset(x, offset[1], offset[2]);
424 getPilotPositionYOffset ()
426 FGViewer * pilot_view = globals->get_viewmgr()->get_view(0);
427 float * offset = pilot_view->get_pilot_offset();
432 setPilotPositionYOffset (float y)
434 FGViewer * pilot_view = globals->get_viewmgr()->get_view(0);
435 float * offset = pilot_view->get_pilot_offset();
436 pilot_view->set_pilot_offset(offset[0], y, offset[2]);
440 getPilotPositionZOffset ()
442 FGViewer * pilot_view = globals->get_viewmgr()->get_view(0);
443 float * offset = pilot_view->get_pilot_offset();
448 setPilotPositionZOffset (float z)
450 FGViewer * pilot_view = globals->get_viewmgr()->get_view(0);
451 float * offset = pilot_view->get_pilot_offset();
452 pilot_view->set_pilot_offset(offset[0], offset[1], z);
457 * Return the current Zulu time.
464 struct tm * t = globals->get_time_params()->getGmt();
465 sprintf(buf, "%.4d-%.2d-%.2dT%.2d:%.2d:%.2d",
466 t->tm_year + 1900, t->tm_mon + 1, t->tm_mday,
467 t->tm_hour, t->tm_min, t->tm_sec);
474 * Set the current Zulu time.
477 setDateString (string date_string)
479 SGTime * st = globals->get_time_params();
480 struct tm * current_time = st->getGmt();
483 // Scan for basic ISO format
484 // YYYY-MM-DDTHH:MM:SS
485 int ret = sscanf(date_string.c_str(), "%d-%d-%dT%d:%d:%d",
486 &(new_time.tm_year), &(new_time.tm_mon),
487 &(new_time.tm_mday), &(new_time.tm_hour),
488 &(new_time.tm_min), &(new_time.tm_sec));
490 // Be pretty picky about this, so
491 // that strange things don't happen
492 // if the save file has been edited
495 SG_LOG(SG_INPUT, SG_ALERT, "Date/time string " << date_string
496 << " not in YYYY-MM-DDTHH:MM:SS format; skipped");
500 // OK, it looks like we got six
501 // values, one way or another.
502 new_time.tm_year -= 1900;
503 new_time.tm_mon -= 1;
505 // Now, tell flight gear to use
506 // the new time. This was far
507 // too difficult, by the way.
509 mktime(&new_time) - mktime(current_time) + globals->get_warp();
510 double lon = current_aircraft.fdm_state->get_Longitude();
511 double lat = current_aircraft.fdm_state->get_Latitude();
512 globals->set_warp(warp);
513 st->update(lon, lat, warp);
514 fgUpdateSkyAndLightingParams();
518 * Return the GMT as a string.
525 struct tm * t = globals->get_time_params()->getGmt();
526 sprintf(buf, " %.2d:%.2d:%.2d",
527 t->tm_hour, t->tm_min, t->tm_sec);
534 * Get the texture rendering state.
539 return (material_lib.get_step() == 0);
544 * Set the texture rendering state.
547 setTextures (bool textures)
550 material_lib.set_step(0);
552 material_lib.set_step(1);
557 * Return the magnetic variation
562 return globals->get_mag()->get_magvar() * SGD_RADIANS_TO_DEGREES;
567 * Return the magnetic dip
572 return globals->get_mag()->get_magdip() * SGD_RADIANS_TO_DEGREES;
577 * Return the current heading in degrees.
582 return current_aircraft.fdm_state->get_Psi() * SGD_RADIANS_TO_DEGREES - getMagVar();
587 * Get the autopilot altitude lock (true=on).
592 return (current_autopilot->get_AltitudeEnabled() &&
593 current_autopilot->get_AltitudeMode()
594 == FGAutopilot::FG_ALTITUDE_LOCK);
599 * Set the autopilot altitude lock (true=on).
602 setAPAltitudeLock (bool lock)
605 current_autopilot->set_AltitudeMode(FGAutopilot::FG_ALTITUDE_LOCK);
606 if (current_autopilot->get_AltitudeMode() == FGAutopilot::FG_ALTITUDE_LOCK)
607 current_autopilot->set_AltitudeEnabled(lock);
612 * Get the autopilot target altitude in feet.
617 return current_autopilot->get_TargetAltitude() * SG_METER_TO_FEET;
622 * Set the autopilot target altitude in feet.
625 setAPAltitude (double altitude)
627 current_autopilot->set_TargetAltitude( altitude * SG_FEET_TO_METER );
631 * Get the autopilot altitude lock (true=on).
636 return (current_autopilot->get_AltitudeEnabled() &&
637 (current_autopilot->get_AltitudeMode()
638 == FGAutopilot::FG_ALTITUDE_GS1));
643 * Set the autopilot altitude lock (true=on).
646 setAPGSLock (bool lock)
649 current_autopilot->set_AltitudeMode(FGAutopilot::FG_ALTITUDE_GS1);
650 if (current_autopilot->get_AltitudeMode() == FGAutopilot::FG_ALTITUDE_GS1)
651 current_autopilot->set_AltitudeEnabled(lock);
656 * Get the autopilot terrain lock (true=on).
661 return (current_autopilot->get_AltitudeEnabled() &&
662 (current_autopilot->get_AltitudeMode()
663 == FGAutopilot::FG_ALTITUDE_TERRAIN));
668 * Set the autopilot terrain lock (true=on).
671 setAPTerrainLock (bool lock)
674 current_autopilot->set_AltitudeMode(FGAutopilot::FG_ALTITUDE_TERRAIN);
676 ->set_TargetAGL(current_aircraft.fdm_state->get_Altitude_AGL() *
678 cout << "Target AGL = "
679 << current_aircraft.fdm_state->get_Altitude_AGL() * SG_FEET_TO_METER
682 if (current_autopilot->get_AltitudeMode() == FGAutopilot::FG_ALTITUDE_TERRAIN)
683 current_autopilot->set_AltitudeEnabled(lock);
688 * Get the autopilot target altitude in feet.
693 return current_autopilot->get_TargetClimbRate() * SG_METER_TO_FEET;
698 * Set the autopilot target altitude in feet.
701 setAPClimb (double rate)
703 current_autopilot->set_TargetClimbRate( rate * SG_FEET_TO_METER );
708 * Get the autopilot heading lock (true=on).
714 (current_autopilot->get_HeadingEnabled() &&
715 current_autopilot->get_HeadingMode() == DEFAULT_AP_HEADING_LOCK);
720 * Set the autopilot heading lock (true=on).
723 setAPHeadingLock (bool lock)
726 current_autopilot->set_HeadingMode(DEFAULT_AP_HEADING_LOCK);
727 if (current_autopilot->get_HeadingMode() == DEFAULT_AP_HEADING_LOCK)
728 current_autopilot->set_HeadingEnabled(lock);
733 * Get the autopilot heading bug in degrees.
738 return current_autopilot->get_DGTargetHeading();
743 * Set the autopilot heading bug in degrees.
746 setAPHeadingBug (double heading)
748 current_autopilot->set_DGTargetHeading( heading );
753 * Get the autopilot wing leveler lock (true=on).
759 (current_autopilot->get_HeadingEnabled() &&
760 current_autopilot->get_HeadingMode() == FGAutopilot::FG_TC_HEADING_LOCK);
765 * Set the autopilot wing leveler lock (true=on).
768 setAPWingLeveler (bool lock)
771 current_autopilot->set_HeadingMode(FGAutopilot::FG_TC_HEADING_LOCK);
772 if (current_autopilot->get_HeadingMode() == FGAutopilot::FG_TC_HEADING_LOCK)
773 current_autopilot->set_HeadingEnabled(lock);
777 * Return true if the autopilot is locked to NAV1.
783 (current_autopilot->get_HeadingEnabled() &&
784 current_autopilot->get_HeadingMode() == FGAutopilot::FG_HEADING_NAV1);
789 * Set the autopilot NAV1 lock.
792 setAPNAV1Lock (bool lock)
795 current_autopilot->set_HeadingMode(FGAutopilot::FG_HEADING_NAV1);
796 if (current_autopilot->get_HeadingMode() == FGAutopilot::FG_HEADING_NAV1)
797 current_autopilot->set_HeadingEnabled(lock);
801 * Get the autopilot autothrottle lock.
804 getAPAutoThrottleLock ()
806 return current_autopilot->get_AutoThrottleEnabled();
811 * Set the autothrottle lock.
814 setAPAutoThrottleLock (bool lock)
816 current_autopilot->set_AutoThrottleEnabled(lock);
822 getAPRudderControl ()
824 if (getAPHeadingLock())
825 return current_autopilot->get_TargetHeading();
827 return globals->get_controls()->get_rudder();
832 setAPRudderControl (double value)
834 if (getAPHeadingLock()) {
835 SG_LOG(SG_GENERAL, SG_DEBUG, "setAPRudderControl " << value );
836 value -= current_autopilot->get_TargetHeading();
837 current_autopilot->HeadingAdjust(value < 0.0 ? -1.0 : 1.0);
839 globals->get_controls()->set_rudder(value);
845 getAPElevatorControl ()
847 if (getAPAltitudeLock())
848 return current_autopilot->get_TargetAltitude();
850 return globals->get_controls()->get_elevator();
855 setAPElevatorControl (double value)
857 if (value != 0 && getAPAltitudeLock()) {
858 SG_LOG(SG_GENERAL, SG_DEBUG, "setAPElevatorControl " << value );
859 value -= current_autopilot->get_TargetAltitude();
860 current_autopilot->AltitudeAdjust(value < 0.0 ? 100.0 : -100.0);
862 globals->get_controls()->set_elevator(value);
868 getAPThrottleControl ()
870 if (getAPAutoThrottleLock())
871 return 0.0; // always resets
873 return globals->get_controls()->get_throttle(0);
878 setAPThrottleControl (double value)
880 if (getAPAutoThrottleLock())
881 current_autopilot->AutoThrottleAdjust(value < 0.0 ? -0.01 : 0.01);
883 globals->get_controls()->set_throttle(FGControls::ALL_ENGINES, value);
888 * Get the current visibility (meters).
893 #ifndef FG_OLD_WEATHER
894 return WeatherDatabase->getWeatherVisibility();
896 return current_weather.get_visibility();
902 * Set the current visibility (meters).
905 setVisibility (double visibility)
907 #ifndef FG_OLD_WEATHER
908 WeatherDatabase->setWeatherVisibility(visibility);
910 current_weather.set_visibility(visibility);
915 * Get the current wind north velocity (feet/second).
920 return current_aircraft.fdm_state->get_V_north_airmass();
925 * Set the current wind north velocity (feet/second).
928 setWindNorth (double speed)
930 current_aircraft.fdm_state
931 ->set_Velocities_Local_Airmass(speed, getWindEast(), getWindDown());
936 * Get the current wind east velocity (feet/second).
941 return current_aircraft.fdm_state->get_V_east_airmass();
946 * Set the current wind east velocity (feet/second).
949 setWindEast (double speed)
951 cout << "Set wind-east to " << speed << endl;
952 current_aircraft.fdm_state->set_Velocities_Local_Airmass(getWindNorth(),
959 * Get the current wind down velocity (feet/second).
964 return current_aircraft.fdm_state->get_V_down_airmass();
969 * Set the current wind down velocity (feet/second).
972 setWindDown (double speed)
974 current_aircraft.fdm_state->set_Velocities_Local_Airmass(getWindNorth(),
982 return globals->get_current_view()->get_fov();
989 globals->get_current_view()->set_fov( fov );
996 return globals->get_warp();
1002 globals->set_warp(warp);
1008 return globals->get_warp_delta();
1012 setWarpDelta (long delta)
1014 globals->set_warp_delta(delta);
1018 setViewAxisLong (double axis)
1024 setViewAxisLat (double axis)
1036 setWindingCCW (bool state)
1038 winding_ccw = state;
1040 glFrontFace ( GL_CCW );
1042 glFrontFace ( GL_CW );
1048 #if defined(FX) && !defined(WIN32)
1049 return globals->get_fullscreen();
1056 setFullScreen (bool state)
1058 #if defined(FX) && !defined(WIN32)
1059 globals->set_fullscreen(state);
1060 # if defined(XMESA_FX_FULLSCREEN) && defined(XMESA_FX_WINDOW)
1061 XMesaSetFXmode( state ? XMESA_FX_FULLSCREEN : XMESA_FX_WINDOW );
1067 getFDMDataLogging ()
1069 return fdm_data_logging;
1073 setFDMDataLogging (bool state)
1075 // kludge; no getter or setter available
1076 if (state != fdm_data_logging) {
1077 fgToggleFDMdataLogging();
1078 fdm_data_logging = state;
1083 ////////////////////////////////////////////////////////////////////////
1084 // Tie the properties.
1085 ////////////////////////////////////////////////////////////////////////
1091 fgTie("/sim/logging/priority", getLoggingPriority, setLoggingPriority);
1092 fgTie("/sim/logging/classes", getLoggingClasses, setLoggingClasses);
1093 // fgTie("/sim/freeze", getFreeze, setFreeze);
1094 fgTie("/sim/aircraft-dir", getAircraftDir, setAircraftDir);
1095 fgTie("/sim/view/offset-deg", getViewOffset, setViewOffset, false);
1096 fgSetArchivable("/sim/view/offset-deg");
1097 fgTie("/sim/view/goal-offset-deg", getGoalViewOffset, setGoalViewOffset, false);
1098 fgTie("/sim/view/tilt-deg", getViewTilt, setViewTilt, false);
1099 fgSetArchivable("/sim/view/tilt-deg");
1100 fgTie("/sim/view/goal-tilt-deg", getGoalViewTilt, setGoalViewTilt, false);
1101 fgSetArchivable("/sim/view/goal-offset-deg");
1102 fgTie("/sim/view/pilot/x-offset-m",
1103 getPilotPositionXOffset, setPilotPositionXOffset);
1104 fgSetArchivable("/sim/view/pilot/x-offset-m");
1105 fgTie("/sim/view/pilot/y-offset-m",
1106 getPilotPositionYOffset, setPilotPositionYOffset);
1107 fgSetArchivable("/sim/view/pilot/y-offset-m");
1108 fgTie("/sim/view/pilot/z-offset-m",
1109 getPilotPositionZOffset, setPilotPositionZOffset);
1110 fgSetArchivable("/sim/view/pilot/z-offset-m");
1111 fgTie("/sim/time/gmt", getDateString, setDateString);
1112 fgSetArchivable("/sim/time/gmt");
1113 fgTie("/sim/time/gmt-string", getGMTString);
1114 fgTie("/sim/rendering/textures", getTextures, setTextures);
1117 fgTie("/orientation/heading-magnetic-deg", getHeadingMag);
1120 fgTie("/autopilot/locks/altitude", getAPAltitudeLock, setAPAltitudeLock);
1121 fgSetArchivable("/autopilot/locks/altitude");
1122 fgTie("/autopilot/settings/altitude-ft", getAPAltitude, setAPAltitude);
1123 fgSetArchivable("/autopilot/settings/altitude-ft");
1124 fgTie("/autopilot/locks/glide-slope", getAPGSLock, setAPGSLock);
1125 fgSetArchivable("/autopilot/locks/glide-slope");
1126 fgTie("/autopilot/locks/terrain", getAPTerrainLock, setAPTerrainLock);
1127 fgSetArchivable("/autopilot/locks/terrain");
1128 fgTie("/autopilot/settings/climb-rate-fpm", getAPClimb, setAPClimb, false);
1129 fgSetArchivable("/autopilot/settings/climb-rate-fpm");
1130 fgTie("/autopilot/locks/heading", getAPHeadingLock, setAPHeadingLock);
1131 fgSetArchivable("/autopilot/locks/heading");
1132 fgTie("/autopilot/settings/heading-bug-deg",
1133 getAPHeadingBug, setAPHeadingBug);
1134 fgSetArchivable("/autopilot/settings/heading-bug-deg");
1135 fgTie("/autopilot/locks/wing-leveler", getAPWingLeveler, setAPWingLeveler);
1136 fgSetArchivable("/autopilot/locks/wing-leveler");
1137 fgTie("/autopilot/locks/nav[0]", getAPNAV1Lock, setAPNAV1Lock);
1138 fgSetArchivable("/autopilot/locks/nav[0]");
1139 fgTie("/autopilot/locks/auto-throttle",
1140 getAPAutoThrottleLock, setAPAutoThrottleLock);
1141 fgSetArchivable("/autopilot/locks/auto-throttle");
1142 fgTie("/autopilot/control-overrides/rudder",
1143 getAPRudderControl, setAPRudderControl);
1144 fgSetArchivable("/autopilot/control-overrides/rudder");
1145 fgTie("/autopilot/control-overrides/elevator",
1146 getAPElevatorControl, setAPElevatorControl);
1147 fgSetArchivable("/autopilot/control-overrides/elevator");
1148 fgTie("/autopilot/control-overrides/throttle",
1149 getAPThrottleControl, setAPThrottleControl);
1150 fgSetArchivable("/autopilot/control-overrides/throttle");
1153 fgTie("/environment/visibility-m", getVisibility, setVisibility);
1154 fgSetArchivable("/environment/visibility-m");
1155 fgTie("/environment/wind-north-fps", getWindNorth, setWindNorth);
1156 fgSetArchivable("/environment/wind-north-fps");
1157 fgTie("/environment/wind-east-fps", getWindEast, setWindEast);
1158 fgSetArchivable("/environment/wind-east-fps");
1159 fgTie("/environment/wind-down-fps", getWindDown, setWindDown);
1160 fgSetArchivable("/environment/wind-down-fps");
1162 fgTie("/environment/magnetic-variation-deg", getMagVar);
1163 fgTie("/environment/magnetic-dip-deg", getMagDip);
1166 fgTie("/sim/field-of-view", getFOV, setFOV);
1167 fgSetArchivable("/sim/field-of-view");
1168 fgTie("/sim/time/warp", getWarp, setWarp, false);
1169 fgTie("/sim/time/warp-delta", getWarpDelta, setWarpDelta);
1170 fgTie("/sim/view/axes/long", (double(*)())0, setViewAxisLong);
1171 fgTie("/sim/view/axes/lat", (double(*)())0, setViewAxisLat);
1173 // Misc. Temporary junk.
1174 fgTie("/sim/temp/winding-ccw", getWindingCCW, setWindingCCW, false);
1175 fgTie("/sim/temp/full-screen", getFullScreen, setFullScreen);
1176 fgTie("/sim/temp/fdm-data-logging", getFDMDataLogging, setFDMDataLogging);
1184 _set_view_from_axes();
1189 ////////////////////////////////////////////////////////////////////////
1190 // Save and restore.
1191 ////////////////////////////////////////////////////////////////////////
1195 * Save the current state of the simulator to a stream.
1198 fgSaveFlight (ostream &output)
1201 writeProperties(output, globals->get_props());
1202 } catch (const sg_exception &e) {
1203 guiErrorMessage("Error saving flight: ", e);
1211 * Restore the current state of the simulator from a stream.
1214 fgLoadFlight (istream &input)
1216 SGPropertyNode props;
1218 readProperties(input, &props);
1219 } catch (const sg_exception &e) {
1220 guiErrorMessage("Error reading saved flight: ", e);
1223 copyProperties(&props, globals->get_props());
1224 // When loading a flight, make it the
1225 // new initial state.
1226 globals->saveInitialState();
1232 ////////////////////////////////////////////////////////////////////////
1233 // Implementation of FGCondition.
1234 ////////////////////////////////////////////////////////////////////////
1236 FGCondition::FGCondition ()
1240 FGCondition::~FGCondition ()
1246 ////////////////////////////////////////////////////////////////////////
1247 // Implementation of FGPropertyCondition.
1248 ////////////////////////////////////////////////////////////////////////
1250 FGPropertyCondition::FGPropertyCondition (const string &propname)
1251 : _node(fgGetNode(propname, true))
1255 FGPropertyCondition::~FGPropertyCondition ()
1261 ////////////////////////////////////////////////////////////////////////
1262 // Implementation of FGNotCondition.
1263 ////////////////////////////////////////////////////////////////////////
1265 FGNotCondition::FGNotCondition (FGCondition * condition)
1266 : _condition(condition)
1270 FGNotCondition::~FGNotCondition ()
1276 FGNotCondition::test () const
1278 return !(_condition->test());
1283 ////////////////////////////////////////////////////////////////////////
1284 // Implementation of FGAndCondition.
1285 ////////////////////////////////////////////////////////////////////////
1287 FGAndCondition::FGAndCondition ()
1291 FGAndCondition::~FGAndCondition ()
1293 for (unsigned int i = 0; i < _conditions.size(); i++)
1294 delete _conditions[i];
1298 FGAndCondition::test () const
1300 int nConditions = _conditions.size();
1301 for (int i = 0; i < nConditions; i++) {
1302 if (!_conditions[i]->test())
1309 FGAndCondition::addCondition (FGCondition * condition)
1311 _conditions.push_back(condition);
1316 ////////////////////////////////////////////////////////////////////////
1317 // Implementation of FGOrCondition.
1318 ////////////////////////////////////////////////////////////////////////
1320 FGOrCondition::FGOrCondition ()
1324 FGOrCondition::~FGOrCondition ()
1326 for (unsigned int i = 0; i < _conditions.size(); i++)
1327 delete _conditions[i];
1331 FGOrCondition::test () const
1333 int nConditions = _conditions.size();
1334 for (int i = 0; i < nConditions; i++) {
1335 if (_conditions[i]->test())
1342 FGOrCondition::addCondition (FGCondition * condition)
1344 _conditions.push_back(condition);
1349 ////////////////////////////////////////////////////////////////////////
1350 // Implementation of FGComparisonCondition.
1351 ////////////////////////////////////////////////////////////////////////
1354 doComparison (const SGPropertyNode * left, const SGPropertyNode *right)
1356 switch (left->getType()) {
1357 case SGPropertyNode::BOOL: {
1358 bool v1 = left->getBoolValue();
1359 bool v2 = right->getBoolValue();
1361 return FGComparisonCondition::LESS_THAN;
1363 return FGComparisonCondition::GREATER_THAN;
1365 return FGComparisonCondition::EQUALS;
1368 case SGPropertyNode::INT: {
1369 int v1 = left->getIntValue();
1370 int v2 = right->getIntValue();
1372 return FGComparisonCondition::LESS_THAN;
1374 return FGComparisonCondition::GREATER_THAN;
1376 return FGComparisonCondition::EQUALS;
1379 case SGPropertyNode::LONG: {
1380 long v1 = left->getLongValue();
1381 long v2 = right->getLongValue();
1383 return FGComparisonCondition::LESS_THAN;
1385 return FGComparisonCondition::GREATER_THAN;
1387 return FGComparisonCondition::EQUALS;
1390 case SGPropertyNode::FLOAT: {
1391 float v1 = left->getFloatValue();
1392 float v2 = right->getFloatValue();
1394 return FGComparisonCondition::LESS_THAN;
1396 return FGComparisonCondition::GREATER_THAN;
1398 return FGComparisonCondition::EQUALS;
1401 case SGPropertyNode::DOUBLE: {
1402 double v1 = left->getDoubleValue();
1403 double v2 = right->getDoubleValue();
1405 return FGComparisonCondition::LESS_THAN;
1407 return FGComparisonCondition::GREATER_THAN;
1409 return FGComparisonCondition::EQUALS;
1412 case SGPropertyNode::STRING:
1413 case SGPropertyNode::NONE:
1414 case SGPropertyNode::UNSPECIFIED: {
1415 string v1 = left->getStringValue();
1416 string v2 = right->getStringValue();
1418 return FGComparisonCondition::LESS_THAN;
1420 return FGComparisonCondition::GREATER_THAN;
1422 return FGComparisonCondition::EQUALS;
1426 throw sg_exception("Unrecognized node type");
1431 FGComparisonCondition::FGComparisonCondition (Type type, bool reverse)
1440 FGComparisonCondition::~FGComparisonCondition ()
1442 delete _right_value;
1446 FGComparisonCondition::test () const
1448 // Always fail if incompletely specified
1449 if (_left_property == 0 ||
1450 (_right_property == 0 && _right_value == 0))
1453 // Get LESS_THAN, EQUALS, or GREATER_THAN
1455 doComparison(_left_property,
1456 (_right_property != 0 ? _right_property : _right_value));
1458 return (cmp == _type);
1460 return (cmp != _type);
1464 FGComparisonCondition::setLeftProperty (const string &propname)
1466 _left_property = fgGetNode(propname, true);
1470 FGComparisonCondition::setRightProperty (const string &propname)
1472 delete _right_value;
1474 _right_property = fgGetNode(propname, true);
1478 FGComparisonCondition::setRightValue (const SGPropertyNode *node)
1480 _right_property = 0;
1481 delete _right_value;
1482 _right_value = new SGPropertyNode(*node);
1487 ////////////////////////////////////////////////////////////////////////
1488 // Read a condition and use it if necessary.
1489 ////////////////////////////////////////////////////////////////////////
1491 // Forward declaration
1492 static FGCondition * readCondition (const SGPropertyNode * node);
1494 static FGCondition *
1495 readPropertyCondition (const SGPropertyNode * node)
1497 return new FGPropertyCondition(node->getStringValue());
1500 static FGCondition *
1501 readNotCondition (const SGPropertyNode * node)
1503 int nChildren = node->nChildren();
1504 for (int i = 0; i < nChildren; i++) {
1505 const SGPropertyNode * child = node->getChild(i);
1506 FGCondition * condition = readCondition(child);
1508 return new FGNotCondition(condition);
1510 SG_LOG(SG_COCKPIT, SG_ALERT, "Panel: empty 'not' condition");
1514 static FGCondition *
1515 readAndConditions (const SGPropertyNode * node)
1517 FGAndCondition * andCondition = new FGAndCondition;
1518 int nChildren = node->nChildren();
1519 for (int i = 0; i < nChildren; i++) {
1520 const SGPropertyNode * child = node->getChild(i);
1521 FGCondition * condition = readCondition(child);
1523 andCondition->addCondition(condition);
1525 return andCondition;
1528 static FGCondition *
1529 readOrConditions (const SGPropertyNode * node)
1531 FGOrCondition * orCondition = new FGOrCondition;
1532 int nChildren = node->nChildren();
1533 for (int i = 0; i < nChildren; i++) {
1534 const SGPropertyNode * child = node->getChild(i);
1535 FGCondition * condition = readCondition(child);
1537 orCondition->addCondition(condition);
1542 static FGCondition *
1543 readComparison (const SGPropertyNode * node,
1544 FGComparisonCondition::Type type,
1547 FGComparisonCondition * condition = new FGComparisonCondition(type, reverse);
1548 condition->setLeftProperty(node->getStringValue("property[0]"));
1549 if (node->hasValue("property[1]"))
1550 condition->setRightProperty(node->getStringValue("property[1]"));
1552 condition->setRightValue(node->getChild("value", 0));
1557 static FGCondition *
1558 readCondition (const SGPropertyNode * node)
1560 const string &name = node->getName();
1561 if (name == "property")
1562 return readPropertyCondition(node);
1563 else if (name == "not")
1564 return readNotCondition(node);
1565 else if (name == "and")
1566 return readAndConditions(node);
1567 else if (name == "or")
1568 return readOrConditions(node);
1569 else if (name == "less-than")
1570 return readComparison(node, FGComparisonCondition::LESS_THAN, false);
1571 else if (name == "less-than-equals")
1572 return readComparison(node, FGComparisonCondition::GREATER_THAN, true);
1573 else if (name == "greater-than")
1574 return readComparison(node, FGComparisonCondition::GREATER_THAN, false);
1575 else if (name == "greater-than-equals")
1576 return readComparison(node, FGComparisonCondition::LESS_THAN, true);
1577 else if (name == "equals")
1578 return readComparison(node, FGComparisonCondition::EQUALS, false);
1579 else if (name == "not-equals")
1580 return readComparison(node, FGComparisonCondition::EQUALS, true);
1587 ////////////////////////////////////////////////////////////////////////
1588 // Implementation of FGConditional.
1589 ////////////////////////////////////////////////////////////////////////
1591 FGConditional::FGConditional ()
1596 FGConditional::~FGConditional ()
1602 FGConditional::setCondition (FGCondition * condition)
1605 _condition = condition;
1609 FGConditional::test () const
1611 return ((_condition == 0) || _condition->test());
1616 // The top-level is always an implicit 'and' group
1618 fgReadCondition (const SGPropertyNode * node)
1620 return readAndConditions(node);
1624 // end of fg_props.cxx