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 static const SGPropertyNode *cur_time_override
480 = fgGetNode("/sim/time/cur-time-override", true);
482 SGTime * st = globals->get_time_params();
483 struct tm * current_time = st->getGmt();
486 // Scan for basic ISO format
487 // YYYY-MM-DDTHH:MM:SS
488 int ret = sscanf(date_string.c_str(), "%d-%d-%dT%d:%d:%d",
489 &(new_time.tm_year), &(new_time.tm_mon),
490 &(new_time.tm_mday), &(new_time.tm_hour),
491 &(new_time.tm_min), &(new_time.tm_sec));
493 // Be pretty picky about this, so
494 // that strange things don't happen
495 // if the save file has been edited
498 SG_LOG(SG_INPUT, SG_ALERT, "Date/time string " << date_string
499 << " not in YYYY-MM-DDTHH:MM:SS format; skipped");
503 // OK, it looks like we got six
504 // values, one way or another.
505 new_time.tm_year -= 1900;
506 new_time.tm_mon -= 1;
508 // Now, tell flight gear to use
509 // the new time. This was far
510 // too difficult, by the way.
512 mktime(&new_time) - mktime(current_time) + globals->get_warp();
513 double lon = current_aircraft.fdm_state->get_Longitude();
514 double lat = current_aircraft.fdm_state->get_Latitude();
515 globals->set_warp(warp);
516 st->update(lon, lat, cur_time_override->getLongValue(), warp);
517 fgUpdateSkyAndLightingParams();
521 * Return the GMT as a string.
528 struct tm *t = globals->get_time_params()->getGmt();
529 sprintf(buf, " %.2d:%.2d:%.2d",
530 t->tm_hour, t->tm_min, t->tm_sec);
531 // cout << t << " " << buf << endl;
538 * Get the texture rendering state.
543 return (material_lib.get_step() == 0);
548 * Set the texture rendering state.
551 setTextures (bool textures)
554 material_lib.set_step(0);
556 material_lib.set_step(1);
561 * Return the magnetic variation
566 return globals->get_mag()->get_magvar() * SGD_RADIANS_TO_DEGREES;
571 * Return the magnetic dip
576 return globals->get_mag()->get_magdip() * SGD_RADIANS_TO_DEGREES;
581 * Return the current heading in degrees.
586 return current_aircraft.fdm_state->get_Psi() * SGD_RADIANS_TO_DEGREES - getMagVar();
591 * Get the autopilot altitude lock (true=on).
596 return (current_autopilot->get_AltitudeEnabled() &&
597 current_autopilot->get_AltitudeMode()
598 == FGAutopilot::FG_ALTITUDE_LOCK);
603 * Set the autopilot altitude lock (true=on).
606 setAPAltitudeLock (bool lock)
609 current_autopilot->set_AltitudeMode(FGAutopilot::FG_ALTITUDE_LOCK);
610 if (current_autopilot->get_AltitudeMode() == FGAutopilot::FG_ALTITUDE_LOCK)
611 current_autopilot->set_AltitudeEnabled(lock);
616 * Get the autopilot target altitude in feet.
621 return current_autopilot->get_TargetAltitude() * SG_METER_TO_FEET;
626 * Set the autopilot target altitude in feet.
629 setAPAltitude (double altitude)
631 current_autopilot->set_TargetAltitude( altitude * SG_FEET_TO_METER );
635 * Get the autopilot altitude lock (true=on).
640 return (current_autopilot->get_AltitudeEnabled() &&
641 (current_autopilot->get_AltitudeMode()
642 == FGAutopilot::FG_ALTITUDE_GS1));
647 * Set the autopilot altitude lock (true=on).
650 setAPGSLock (bool lock)
653 current_autopilot->set_AltitudeMode(FGAutopilot::FG_ALTITUDE_GS1);
654 if (current_autopilot->get_AltitudeMode() == FGAutopilot::FG_ALTITUDE_GS1)
655 current_autopilot->set_AltitudeEnabled(lock);
660 * Get the autopilot terrain lock (true=on).
665 return (current_autopilot->get_AltitudeEnabled() &&
666 (current_autopilot->get_AltitudeMode()
667 == FGAutopilot::FG_ALTITUDE_TERRAIN));
672 * Set the autopilot terrain lock (true=on).
675 setAPTerrainLock (bool lock)
678 current_autopilot->set_AltitudeMode(FGAutopilot::FG_ALTITUDE_TERRAIN);
680 ->set_TargetAGL(current_aircraft.fdm_state->get_Altitude_AGL() *
682 cout << "Target AGL = "
683 << current_aircraft.fdm_state->get_Altitude_AGL() * SG_FEET_TO_METER
686 if (current_autopilot->get_AltitudeMode() == FGAutopilot::FG_ALTITUDE_TERRAIN)
687 current_autopilot->set_AltitudeEnabled(lock);
692 * Get the autopilot target altitude in feet.
697 return current_autopilot->get_TargetClimbRate() * SG_METER_TO_FEET;
702 * Set the autopilot target altitude in feet.
705 setAPClimb (double rate)
707 current_autopilot->set_TargetClimbRate( rate * SG_FEET_TO_METER );
712 * Get the autopilot heading lock (true=on).
718 (current_autopilot->get_HeadingEnabled() &&
719 current_autopilot->get_HeadingMode() == DEFAULT_AP_HEADING_LOCK);
724 * Set the autopilot heading lock (true=on).
727 setAPHeadingLock (bool lock)
730 current_autopilot->set_HeadingMode(DEFAULT_AP_HEADING_LOCK);
731 if (current_autopilot->get_HeadingMode() == DEFAULT_AP_HEADING_LOCK)
732 current_autopilot->set_HeadingEnabled(lock);
737 * Get the autopilot heading bug in degrees.
742 return current_autopilot->get_DGTargetHeading();
747 * Set the autopilot heading bug in degrees.
750 setAPHeadingBug (double heading)
752 current_autopilot->set_DGTargetHeading( heading );
757 * Get the autopilot wing leveler lock (true=on).
763 (current_autopilot->get_HeadingEnabled() &&
764 current_autopilot->get_HeadingMode() == FGAutopilot::FG_TC_HEADING_LOCK);
769 * Set the autopilot wing leveler lock (true=on).
772 setAPWingLeveler (bool lock)
775 current_autopilot->set_HeadingMode(FGAutopilot::FG_TC_HEADING_LOCK);
776 if (current_autopilot->get_HeadingMode() == FGAutopilot::FG_TC_HEADING_LOCK)
777 current_autopilot->set_HeadingEnabled(lock);
781 * Return true if the autopilot is locked to NAV1.
787 (current_autopilot->get_HeadingEnabled() &&
788 current_autopilot->get_HeadingMode() == FGAutopilot::FG_HEADING_NAV1);
793 * Set the autopilot NAV1 lock.
796 setAPNAV1Lock (bool lock)
799 current_autopilot->set_HeadingMode(FGAutopilot::FG_HEADING_NAV1);
800 if (current_autopilot->get_HeadingMode() == FGAutopilot::FG_HEADING_NAV1)
801 current_autopilot->set_HeadingEnabled(lock);
805 * Get the autopilot autothrottle lock.
808 getAPAutoThrottleLock ()
810 return current_autopilot->get_AutoThrottleEnabled();
815 * Set the autothrottle lock.
818 setAPAutoThrottleLock (bool lock)
820 current_autopilot->set_AutoThrottleEnabled(lock);
826 getAPRudderControl ()
828 if (getAPHeadingLock())
829 return current_autopilot->get_TargetHeading();
831 return globals->get_controls()->get_rudder();
836 setAPRudderControl (double value)
838 if (getAPHeadingLock()) {
839 SG_LOG(SG_GENERAL, SG_DEBUG, "setAPRudderControl " << value );
840 value -= current_autopilot->get_TargetHeading();
841 current_autopilot->HeadingAdjust(value < 0.0 ? -1.0 : 1.0);
843 globals->get_controls()->set_rudder(value);
849 getAPElevatorControl ()
851 if (getAPAltitudeLock())
852 return current_autopilot->get_TargetAltitude();
854 return globals->get_controls()->get_elevator();
859 setAPElevatorControl (double value)
861 if (value != 0 && getAPAltitudeLock()) {
862 SG_LOG(SG_GENERAL, SG_DEBUG, "setAPElevatorControl " << value );
863 value -= current_autopilot->get_TargetAltitude();
864 current_autopilot->AltitudeAdjust(value < 0.0 ? 100.0 : -100.0);
866 globals->get_controls()->set_elevator(value);
872 getAPThrottleControl ()
874 if (getAPAutoThrottleLock())
875 return 0.0; // always resets
877 return globals->get_controls()->get_throttle(0);
882 setAPThrottleControl (double value)
884 if (getAPAutoThrottleLock())
885 current_autopilot->AutoThrottleAdjust(value < 0.0 ? -0.01 : 0.01);
887 globals->get_controls()->set_throttle(FGControls::ALL_ENGINES, value);
892 * Get the current visibility (meters).
897 #ifndef FG_OLD_WEATHER
898 return WeatherDatabase->getWeatherVisibility();
900 return current_weather.get_visibility();
906 * Set the current visibility (meters).
909 setVisibility (double visibility)
911 #ifndef FG_OLD_WEATHER
912 WeatherDatabase->setWeatherVisibility(visibility);
914 current_weather.set_visibility(visibility);
919 * Get the current wind north velocity (feet/second).
924 return current_aircraft.fdm_state->get_V_north_airmass();
929 * Set the current wind north velocity (feet/second).
932 setWindNorth (double speed)
934 current_aircraft.fdm_state
935 ->set_Velocities_Local_Airmass(speed, getWindEast(), getWindDown());
940 * Get the current wind east velocity (feet/second).
945 return current_aircraft.fdm_state->get_V_east_airmass();
950 * Set the current wind east velocity (feet/second).
953 setWindEast (double speed)
955 cout << "Set wind-east to " << speed << endl;
956 current_aircraft.fdm_state->set_Velocities_Local_Airmass(getWindNorth(),
963 * Get the current wind down velocity (feet/second).
968 return current_aircraft.fdm_state->get_V_down_airmass();
973 * Set the current wind down velocity (feet/second).
976 setWindDown (double speed)
978 current_aircraft.fdm_state->set_Velocities_Local_Airmass(getWindNorth(),
986 return globals->get_current_view()->get_fov();
993 globals->get_current_view()->set_fov( fov );
1000 return globals->get_warp();
1006 globals->set_warp(warp);
1012 return globals->get_warp_delta();
1016 setWarpDelta (long delta)
1018 globals->set_warp_delta(delta);
1022 setViewAxisLong (double axis)
1028 setViewAxisLat (double axis)
1040 setWindingCCW (bool state)
1042 winding_ccw = state;
1044 glFrontFace ( GL_CCW );
1046 glFrontFace ( GL_CW );
1052 #if defined(FX) && !defined(WIN32)
1053 return globals->get_fullscreen();
1060 setFullScreen (bool state)
1062 #if defined(FX) && !defined(WIN32)
1063 globals->set_fullscreen(state);
1064 # if defined(XMESA_FX_FULLSCREEN) && defined(XMESA_FX_WINDOW)
1065 XMesaSetFXmode( state ? XMESA_FX_FULLSCREEN : XMESA_FX_WINDOW );
1071 getFDMDataLogging ()
1073 return fdm_data_logging;
1077 setFDMDataLogging (bool state)
1079 // kludge; no getter or setter available
1080 if (state != fdm_data_logging) {
1081 fgToggleFDMdataLogging();
1082 fdm_data_logging = state;
1087 ////////////////////////////////////////////////////////////////////////
1088 // Tie the properties.
1089 ////////////////////////////////////////////////////////////////////////
1095 fgTie("/sim/logging/priority", getLoggingPriority, setLoggingPriority);
1096 fgTie("/sim/logging/classes", getLoggingClasses, setLoggingClasses);
1097 // fgTie("/sim/freeze", getFreeze, setFreeze);
1098 fgTie("/sim/aircraft-dir", getAircraftDir, setAircraftDir);
1099 fgTie("/sim/view/offset-deg", getViewOffset, setViewOffset, false);
1100 fgSetArchivable("/sim/view/offset-deg");
1101 fgTie("/sim/view/goal-offset-deg", getGoalViewOffset, setGoalViewOffset, false);
1102 fgTie("/sim/view/tilt-deg", getViewTilt, setViewTilt, false);
1103 fgSetArchivable("/sim/view/tilt-deg");
1104 fgTie("/sim/view/goal-tilt-deg", getGoalViewTilt, setGoalViewTilt, false);
1105 fgSetArchivable("/sim/view/goal-offset-deg");
1106 fgTie("/sim/view/pilot/x-offset-m",
1107 getPilotPositionXOffset, setPilotPositionXOffset);
1108 fgSetArchivable("/sim/view/pilot/x-offset-m");
1109 fgTie("/sim/view/pilot/y-offset-m",
1110 getPilotPositionYOffset, setPilotPositionYOffset);
1111 fgSetArchivable("/sim/view/pilot/y-offset-m");
1112 fgTie("/sim/view/pilot/z-offset-m",
1113 getPilotPositionZOffset, setPilotPositionZOffset);
1114 fgSetArchivable("/sim/view/pilot/z-offset-m");
1115 fgTie("/sim/time/gmt", getDateString, setDateString);
1116 fgSetArchivable("/sim/time/gmt");
1117 fgTie("/sim/time/gmt-string", getGMTString);
1118 fgTie("/sim/rendering/textures", getTextures, setTextures);
1121 fgTie("/orientation/heading-magnetic-deg", getHeadingMag);
1124 fgTie("/autopilot/locks/altitude", getAPAltitudeLock, setAPAltitudeLock);
1125 fgSetArchivable("/autopilot/locks/altitude");
1126 fgTie("/autopilot/settings/altitude-ft", getAPAltitude, setAPAltitude);
1127 fgSetArchivable("/autopilot/settings/altitude-ft");
1128 fgTie("/autopilot/locks/glide-slope", getAPGSLock, setAPGSLock);
1129 fgSetArchivable("/autopilot/locks/glide-slope");
1130 fgTie("/autopilot/locks/terrain", getAPTerrainLock, setAPTerrainLock);
1131 fgSetArchivable("/autopilot/locks/terrain");
1132 fgTie("/autopilot/settings/climb-rate-fpm", getAPClimb, setAPClimb, false);
1133 fgSetArchivable("/autopilot/settings/climb-rate-fpm");
1134 fgTie("/autopilot/locks/heading", getAPHeadingLock, setAPHeadingLock);
1135 fgSetArchivable("/autopilot/locks/heading");
1136 fgTie("/autopilot/settings/heading-bug-deg",
1137 getAPHeadingBug, setAPHeadingBug);
1138 fgSetArchivable("/autopilot/settings/heading-bug-deg");
1139 fgTie("/autopilot/locks/wing-leveler", getAPWingLeveler, setAPWingLeveler);
1140 fgSetArchivable("/autopilot/locks/wing-leveler");
1141 fgTie("/autopilot/locks/nav[0]", getAPNAV1Lock, setAPNAV1Lock);
1142 fgSetArchivable("/autopilot/locks/nav[0]");
1143 fgTie("/autopilot/locks/auto-throttle",
1144 getAPAutoThrottleLock, setAPAutoThrottleLock);
1145 fgSetArchivable("/autopilot/locks/auto-throttle");
1146 fgTie("/autopilot/control-overrides/rudder",
1147 getAPRudderControl, setAPRudderControl);
1148 fgSetArchivable("/autopilot/control-overrides/rudder");
1149 fgTie("/autopilot/control-overrides/elevator",
1150 getAPElevatorControl, setAPElevatorControl);
1151 fgSetArchivable("/autopilot/control-overrides/elevator");
1152 fgTie("/autopilot/control-overrides/throttle",
1153 getAPThrottleControl, setAPThrottleControl);
1154 fgSetArchivable("/autopilot/control-overrides/throttle");
1157 fgTie("/environment/visibility-m", getVisibility, setVisibility);
1158 fgSetArchivable("/environment/visibility-m");
1159 fgTie("/environment/wind-north-fps", getWindNorth, setWindNorth);
1160 fgSetArchivable("/environment/wind-north-fps");
1161 fgTie("/environment/wind-east-fps", getWindEast, setWindEast);
1162 fgSetArchivable("/environment/wind-east-fps");
1163 fgTie("/environment/wind-down-fps", getWindDown, setWindDown);
1164 fgSetArchivable("/environment/wind-down-fps");
1166 fgTie("/environment/magnetic-variation-deg", getMagVar);
1167 fgTie("/environment/magnetic-dip-deg", getMagDip);
1170 fgTie("/sim/field-of-view", getFOV, setFOV);
1171 fgSetArchivable("/sim/field-of-view");
1172 fgTie("/sim/time/warp", getWarp, setWarp, false);
1173 fgTie("/sim/time/warp-delta", getWarpDelta, setWarpDelta);
1174 fgTie("/sim/view/axes/long", (double(*)())0, setViewAxisLong);
1175 fgTie("/sim/view/axes/lat", (double(*)())0, setViewAxisLat);
1177 // Misc. Temporary junk.
1178 fgTie("/sim/temp/winding-ccw", getWindingCCW, setWindingCCW, false);
1179 fgTie("/sim/temp/full-screen", getFullScreen, setFullScreen);
1180 fgTie("/sim/temp/fdm-data-logging", getFDMDataLogging, setFDMDataLogging);
1188 _set_view_from_axes();
1193 ////////////////////////////////////////////////////////////////////////
1194 // Save and restore.
1195 ////////////////////////////////////////////////////////////////////////
1199 * Save the current state of the simulator to a stream.
1202 fgSaveFlight (ostream &output)
1205 writeProperties(output, globals->get_props());
1206 } catch (const sg_exception &e) {
1207 guiErrorMessage("Error saving flight: ", e);
1215 * Restore the current state of the simulator from a stream.
1218 fgLoadFlight (istream &input)
1220 SGPropertyNode props;
1222 readProperties(input, &props);
1223 } catch (const sg_exception &e) {
1224 guiErrorMessage("Error reading saved flight: ", e);
1227 copyProperties(&props, globals->get_props());
1228 // When loading a flight, make it the
1229 // new initial state.
1230 globals->saveInitialState();
1236 ////////////////////////////////////////////////////////////////////////
1237 // Implementation of FGCondition.
1238 ////////////////////////////////////////////////////////////////////////
1240 FGCondition::FGCondition ()
1244 FGCondition::~FGCondition ()
1250 ////////////////////////////////////////////////////////////////////////
1251 // Implementation of FGPropertyCondition.
1252 ////////////////////////////////////////////////////////////////////////
1254 FGPropertyCondition::FGPropertyCondition (const string &propname)
1255 : _node(fgGetNode(propname, true))
1259 FGPropertyCondition::~FGPropertyCondition ()
1265 ////////////////////////////////////////////////////////////////////////
1266 // Implementation of FGNotCondition.
1267 ////////////////////////////////////////////////////////////////////////
1269 FGNotCondition::FGNotCondition (FGCondition * condition)
1270 : _condition(condition)
1274 FGNotCondition::~FGNotCondition ()
1280 FGNotCondition::test () const
1282 return !(_condition->test());
1287 ////////////////////////////////////////////////////////////////////////
1288 // Implementation of FGAndCondition.
1289 ////////////////////////////////////////////////////////////////////////
1291 FGAndCondition::FGAndCondition ()
1295 FGAndCondition::~FGAndCondition ()
1297 for (unsigned int i = 0; i < _conditions.size(); i++)
1298 delete _conditions[i];
1302 FGAndCondition::test () const
1304 int nConditions = _conditions.size();
1305 for (int i = 0; i < nConditions; i++) {
1306 if (!_conditions[i]->test())
1313 FGAndCondition::addCondition (FGCondition * condition)
1315 _conditions.push_back(condition);
1320 ////////////////////////////////////////////////////////////////////////
1321 // Implementation of FGOrCondition.
1322 ////////////////////////////////////////////////////////////////////////
1324 FGOrCondition::FGOrCondition ()
1328 FGOrCondition::~FGOrCondition ()
1330 for (unsigned int i = 0; i < _conditions.size(); i++)
1331 delete _conditions[i];
1335 FGOrCondition::test () const
1337 int nConditions = _conditions.size();
1338 for (int i = 0; i < nConditions; i++) {
1339 if (_conditions[i]->test())
1346 FGOrCondition::addCondition (FGCondition * condition)
1348 _conditions.push_back(condition);
1353 ////////////////////////////////////////////////////////////////////////
1354 // Implementation of FGComparisonCondition.
1355 ////////////////////////////////////////////////////////////////////////
1358 doComparison (const SGPropertyNode * left, const SGPropertyNode *right)
1360 switch (left->getType()) {
1361 case SGPropertyNode::BOOL: {
1362 bool v1 = left->getBoolValue();
1363 bool v2 = right->getBoolValue();
1365 return FGComparisonCondition::LESS_THAN;
1367 return FGComparisonCondition::GREATER_THAN;
1369 return FGComparisonCondition::EQUALS;
1372 case SGPropertyNode::INT: {
1373 int v1 = left->getIntValue();
1374 int v2 = right->getIntValue();
1376 return FGComparisonCondition::LESS_THAN;
1378 return FGComparisonCondition::GREATER_THAN;
1380 return FGComparisonCondition::EQUALS;
1383 case SGPropertyNode::LONG: {
1384 long v1 = left->getLongValue();
1385 long v2 = right->getLongValue();
1387 return FGComparisonCondition::LESS_THAN;
1389 return FGComparisonCondition::GREATER_THAN;
1391 return FGComparisonCondition::EQUALS;
1394 case SGPropertyNode::FLOAT: {
1395 float v1 = left->getFloatValue();
1396 float v2 = right->getFloatValue();
1398 return FGComparisonCondition::LESS_THAN;
1400 return FGComparisonCondition::GREATER_THAN;
1402 return FGComparisonCondition::EQUALS;
1405 case SGPropertyNode::DOUBLE: {
1406 double v1 = left->getDoubleValue();
1407 double v2 = right->getDoubleValue();
1409 return FGComparisonCondition::LESS_THAN;
1411 return FGComparisonCondition::GREATER_THAN;
1413 return FGComparisonCondition::EQUALS;
1416 case SGPropertyNode::STRING:
1417 case SGPropertyNode::NONE:
1418 case SGPropertyNode::UNSPECIFIED: {
1419 string v1 = left->getStringValue();
1420 string v2 = right->getStringValue();
1422 return FGComparisonCondition::LESS_THAN;
1424 return FGComparisonCondition::GREATER_THAN;
1426 return FGComparisonCondition::EQUALS;
1430 throw sg_exception("Unrecognized node type");
1435 FGComparisonCondition::FGComparisonCondition (Type type, bool reverse)
1444 FGComparisonCondition::~FGComparisonCondition ()
1446 delete _right_value;
1450 FGComparisonCondition::test () const
1452 // Always fail if incompletely specified
1453 if (_left_property == 0 ||
1454 (_right_property == 0 && _right_value == 0))
1457 // Get LESS_THAN, EQUALS, or GREATER_THAN
1459 doComparison(_left_property,
1460 (_right_property != 0 ? _right_property : _right_value));
1462 return (cmp == _type);
1464 return (cmp != _type);
1468 FGComparisonCondition::setLeftProperty (const string &propname)
1470 _left_property = fgGetNode(propname, true);
1474 FGComparisonCondition::setRightProperty (const string &propname)
1476 delete _right_value;
1478 _right_property = fgGetNode(propname, true);
1482 FGComparisonCondition::setRightValue (const SGPropertyNode *node)
1484 _right_property = 0;
1485 delete _right_value;
1486 _right_value = new SGPropertyNode(*node);
1491 ////////////////////////////////////////////////////////////////////////
1492 // Read a condition and use it if necessary.
1493 ////////////////////////////////////////////////////////////////////////
1495 // Forward declaration
1496 static FGCondition * readCondition (const SGPropertyNode * node);
1498 static FGCondition *
1499 readPropertyCondition (const SGPropertyNode * node)
1501 return new FGPropertyCondition(node->getStringValue());
1504 static FGCondition *
1505 readNotCondition (const SGPropertyNode * node)
1507 int nChildren = node->nChildren();
1508 for (int i = 0; i < nChildren; i++) {
1509 const SGPropertyNode * child = node->getChild(i);
1510 FGCondition * condition = readCondition(child);
1512 return new FGNotCondition(condition);
1514 SG_LOG(SG_COCKPIT, SG_ALERT, "Panel: empty 'not' condition");
1518 static FGCondition *
1519 readAndConditions (const SGPropertyNode * node)
1521 FGAndCondition * andCondition = new FGAndCondition;
1522 int nChildren = node->nChildren();
1523 for (int i = 0; i < nChildren; i++) {
1524 const SGPropertyNode * child = node->getChild(i);
1525 FGCondition * condition = readCondition(child);
1527 andCondition->addCondition(condition);
1529 return andCondition;
1532 static FGCondition *
1533 readOrConditions (const SGPropertyNode * node)
1535 FGOrCondition * orCondition = new FGOrCondition;
1536 int nChildren = node->nChildren();
1537 for (int i = 0; i < nChildren; i++) {
1538 const SGPropertyNode * child = node->getChild(i);
1539 FGCondition * condition = readCondition(child);
1541 orCondition->addCondition(condition);
1546 static FGCondition *
1547 readComparison (const SGPropertyNode * node,
1548 FGComparisonCondition::Type type,
1551 FGComparisonCondition * condition = new FGComparisonCondition(type, reverse);
1552 condition->setLeftProperty(node->getStringValue("property[0]"));
1553 if (node->hasValue("property[1]"))
1554 condition->setRightProperty(node->getStringValue("property[1]"));
1556 condition->setRightValue(node->getChild("value", 0));
1561 static FGCondition *
1562 readCondition (const SGPropertyNode * node)
1564 const string &name = node->getName();
1565 if (name == "property")
1566 return readPropertyCondition(node);
1567 else if (name == "not")
1568 return readNotCondition(node);
1569 else if (name == "and")
1570 return readAndConditions(node);
1571 else if (name == "or")
1572 return readOrConditions(node);
1573 else if (name == "less-than")
1574 return readComparison(node, FGComparisonCondition::LESS_THAN, false);
1575 else if (name == "less-than-equals")
1576 return readComparison(node, FGComparisonCondition::GREATER_THAN, true);
1577 else if (name == "greater-than")
1578 return readComparison(node, FGComparisonCondition::GREATER_THAN, false);
1579 else if (name == "greater-than-equals")
1580 return readComparison(node, FGComparisonCondition::LESS_THAN, true);
1581 else if (name == "equals")
1582 return readComparison(node, FGComparisonCondition::EQUALS, false);
1583 else if (name == "not-equals")
1584 return readComparison(node, FGComparisonCondition::EQUALS, true);
1591 ////////////////////////////////////////////////////////////////////////
1592 // Implementation of FGConditional.
1593 ////////////////////////////////////////////////////////////////////////
1595 FGConditional::FGConditional ()
1600 FGConditional::~FGConditional ()
1606 FGConditional::setCondition (FGCondition * condition)
1609 _condition = condition;
1613 FGConditional::test () const
1615 return ((_condition == 0) || _condition->test());
1620 // The top-level is always an implicit 'and' group
1622 fgReadCondition (const SGPropertyNode * node)
1624 return readAndConditions(node);
1628 // end of fg_props.cxx