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 <Autopilot/newauto.hxx>
32 #include <Aircraft/aircraft.hxx>
33 #include <Time/tmp.hxx>
34 #include <FDM/UIUCModel/uiuc_aircraftdir.h>
35 #ifndef FG_OLD_WEATHER
36 # include <WeatherCM/FGLocalWeatherDatabase.h>
38 # include <Weather/weather.hxx>
40 #include <Objects/matlib.hxx>
45 #include "fg_props.hxx"
46 #include "viewmgr.hxx"
48 #if !defined(SG_HAVE_NATIVE_SGI_COMPILERS)
49 SG_USING_STD(istream);
50 SG_USING_STD(ostream);
53 static double getWindNorth ();
54 static double getWindEast ();
55 static double getWindDown ();
57 // Allow the view to be set from two axes (i.e. a joystick hat)
58 // This needs to be in FGViewer itself, somehow.
59 static double axisLong = 0.0;
60 static double axisLat = 0.0;
62 static bool winding_ccw = true; // FIXME: temporary
64 static bool fdm_data_logging = false; // FIXME: temporary
71 _set_view_from_axes ()
73 // Take no action when hat is centered
74 if ( ( axisLong < 0.01 ) &&
75 ( axisLong > -0.01 ) &&
83 /* Do all the quick and easy cases */
84 if (axisLong < 0) { // Longitudinal axis forward
85 if (axisLat == axisLong)
87 else if (axisLat == - axisLong)
89 else if (axisLat == 0)
91 } else if (axisLong > 0) { // Longitudinal axis backward
92 if (axisLat == - axisLong)
94 else if (axisLat == axisLong)
96 else if (axisLat == 0)
98 } else if (axisLong == 0) { // Longitudinal axis neutral
101 else if (axisLat > 0)
103 else return; /* And assertion failure maybe? */
106 /* Do all the difficult cases */
108 viewDir = SGD_RADIANS_TO_DEGREES * atan2 ( -axisLat, -axisLong );
109 if ( viewDir < -1 ) viewDir += 360;
111 // SG_LOG(SG_INPUT, SG_ALERT, "Joystick Lat=" << axisLat << " and Long="
112 // << axisLong << " gave angle=" << viewDir );
114 globals->get_current_view()->set_goal_view_offset(viewDir*SGD_DEGREES_TO_RADIANS);
115 // globals->get_current_view()->set_view_offset(viewDir*SGD_DEGREES_TO_RADIANS);
119 ////////////////////////////////////////////////////////////////////////
120 // Default property bindings (not yet handled by any module).
121 ////////////////////////////////////////////////////////////////////////
125 * Get the pause state of the sim.
130 return globals->get_freeze();
135 * Set the pause state of the sim.
138 setFreeze (bool freeze)
140 globals->set_freeze(freeze);
144 * Return the current aircraft directory (UIUC) as a string.
154 * Set the current aircraft directory (UIUC).
157 setAircraftDir (string dir)
159 if (getAircraftDir() != dir) {
161 // needReinit(); FIXME!!
167 * Get the current view offset in degrees.
172 return (globals->get_current_view()
173 ->get_view_offset() * SGD_RADIANS_TO_DEGREES);
178 setViewOffset (double offset)
180 globals->get_current_view()->set_view_offset(offset * SGD_DEGREES_TO_RADIANS);
186 return (globals->get_current_view()
187 ->get_goal_view_offset() * SGD_RADIANS_TO_DEGREES);
191 setGoalViewOffset (double offset)
193 while ( offset < 0 ) {
196 while ( offset > 360.0 ) {
199 // Snap to center if we are close
200 if ( fabs(offset) < 1.0 || fabs(offset) > 359.0 ) {
204 globals->get_current_view()
205 ->set_goal_view_offset(offset * SGD_DEGREES_TO_RADIANS);
210 * Pilot position offset from CG.
213 getPilotPositionXOffset ()
215 FGViewer * pilot_view = globals->get_viewmgr()->get_view(0);
216 float * offset = pilot_view->get_pilot_offset();
221 setPilotPositionXOffset (float x)
223 FGViewer * pilot_view = globals->get_viewmgr()->get_view(0);
224 float * offset = pilot_view->get_pilot_offset();
225 pilot_view->set_pilot_offset(x, offset[1], offset[2]);
229 getPilotPositionYOffset ()
231 FGViewer * pilot_view = globals->get_viewmgr()->get_view(0);
232 float * offset = pilot_view->get_pilot_offset();
237 setPilotPositionYOffset (float y)
239 FGViewer * pilot_view = globals->get_viewmgr()->get_view(0);
240 float * offset = pilot_view->get_pilot_offset();
241 pilot_view->set_pilot_offset(offset[0], y, offset[2]);
245 getPilotPositionZOffset ()
247 FGViewer * pilot_view = globals->get_viewmgr()->get_view(0);
248 float * offset = pilot_view->get_pilot_offset();
253 setPilotPositionZOffset (float z)
255 FGViewer * pilot_view = globals->get_viewmgr()->get_view(0);
256 float * offset = pilot_view->get_pilot_offset();
257 pilot_view->set_pilot_offset(offset[0], offset[1], z);
262 * Return the current Zulu time.
269 struct tm * t = globals->get_time_params()->getGmt();
270 sprintf(buf, "%.4d-%.2d-%.2dT%.2d:%.2d:%.2d",
271 t->tm_year + 1900, t->tm_mon + 1, t->tm_mday,
272 t->tm_hour, t->tm_min, t->tm_sec);
279 * Set the current Zulu time.
282 setDateString (string date_string)
284 SGTime * st = globals->get_time_params();
285 struct tm * current_time = st->getGmt();
288 // Scan for basic ISO format
289 // YYYY-MM-DDTHH:MM:SS
290 int ret = sscanf(date_string.c_str(), "%d-%d-%dT%d:%d:%d",
291 &(new_time.tm_year), &(new_time.tm_mon),
292 &(new_time.tm_mday), &(new_time.tm_hour),
293 &(new_time.tm_min), &(new_time.tm_sec));
295 // Be pretty picky about this, so
296 // that strange things don't happen
297 // if the save file has been edited
300 SG_LOG(SG_INPUT, SG_ALERT, "Date/time string " << date_string
301 << " not in YYYY-MM-DDTHH:MM:SS format; skipped");
305 // OK, it looks like we got six
306 // values, one way or another.
307 new_time.tm_year -= 1900;
308 new_time.tm_mon -= 1;
310 // Now, tell flight gear to use
311 // the new time. This was far
312 // too difficult, by the way.
314 mktime(&new_time) - mktime(current_time) + globals->get_warp();
315 double lon = current_aircraft.fdm_state->get_Longitude();
316 double lat = current_aircraft.fdm_state->get_Latitude();
317 globals->set_warp(warp);
318 st->update(lon, lat, warp);
319 fgUpdateSkyAndLightingParams();
323 * Return the GMT as a string.
330 struct tm * t = globals->get_time_params()->getGmt();
331 sprintf(buf, " %.2d:%.2d:%.2d",
332 t->tm_hour, t->tm_min, t->tm_sec);
339 * Get the texture rendering state.
344 return (material_lib.get_step() == 0);
349 * Set the texture rendering state.
352 setTextures (bool textures)
355 material_lib.set_step(0);
357 material_lib.set_step(1);
362 * Return the magnetic variation
367 return globals->get_mag()->get_magvar() * SGD_RADIANS_TO_DEGREES;
372 * Return the magnetic dip
377 return globals->get_mag()->get_magdip() * SGD_RADIANS_TO_DEGREES;
382 * Return the current heading in degrees.
387 return current_aircraft.fdm_state->get_Psi() * SGD_RADIANS_TO_DEGREES - getMagVar();
392 * Return the current engine0 rpm
397 if ( current_aircraft.fdm_state->get_engine(0) != NULL ) {
398 return current_aircraft.fdm_state->get_engine(0)->get_RPM();
406 * Return the current engine0 EGT.
411 if ( current_aircraft.fdm_state->get_engine(0) != NULL ) {
412 return current_aircraft.fdm_state->get_engine(0)->get_EGT();
419 * Return the current engine0 CHT.
424 if ( current_aircraft.fdm_state->get_engine(0) != NULL ) {
425 return current_aircraft.fdm_state->get_engine(0)->get_CHT();
432 * Return the current engine0 Oil Temp.
437 if ( current_aircraft.fdm_state->get_engine(0) != NULL ) {
438 return current_aircraft.fdm_state->get_engine(0)->get_Oil_Temp();
445 * Return the current engine0 Manifold Pressure.
450 if ( current_aircraft.fdm_state->get_engine(0) != NULL ) {
451 return current_aircraft.fdm_state->get_engine(0)->get_Manifold_Pressure();
459 * Return the current engine0 fuel flow
464 if ( current_aircraft.fdm_state->get_engine(0) != NULL ) {
465 return current_aircraft.fdm_state->get_engine(0)->get_Fuel_Flow();
472 * Return the fuel level in tank 1
477 return current_aircraft.fdm_state->get_Tank1Fuel();
481 setTank1Fuel ( double gals )
483 current_aircraft.fdm_state->set_Tank1Fuel( gals );
487 * Return the fuel level in tank 2
492 return current_aircraft.fdm_state->get_Tank2Fuel();
496 setTank2Fuel ( double gals )
498 current_aircraft.fdm_state->set_Tank2Fuel( gals );
503 * Get the autopilot altitude lock (true=on).
508 return (current_autopilot->get_AltitudeEnabled() &&
509 current_autopilot->get_AltitudeMode()
510 == FGAutopilot::FG_ALTITUDE_LOCK);
515 * Set the autopilot altitude lock (true=on).
518 setAPAltitudeLock (bool lock)
520 current_autopilot->set_AltitudeMode(FGAutopilot::FG_ALTITUDE_LOCK);
521 current_autopilot->set_AltitudeEnabled(lock);
526 * Get the autopilot target altitude in feet.
531 return current_autopilot->get_TargetAltitude() * SG_METER_TO_FEET;
536 * Set the autopilot target altitude in feet.
539 setAPAltitude (double altitude)
541 current_autopilot->set_TargetAltitude( altitude * SG_FEET_TO_METER );
545 * Get the autopilot altitude lock (true=on).
550 return (current_autopilot->get_AltitudeEnabled() &&
551 (current_autopilot->get_AltitudeMode()
552 == FGAutopilot::FG_ALTITUDE_GS1));
557 * Set the autopilot altitude lock (true=on).
560 setAPGSLock (bool lock)
562 current_autopilot->set_AltitudeMode(FGAutopilot::FG_ALTITUDE_GS1);
563 current_autopilot->set_AltitudeEnabled(lock);
568 * Get the autopilot terrain lock (true=on).
573 return (current_autopilot->get_AltitudeEnabled() &&
574 (current_autopilot->get_AltitudeMode()
575 == FGAutopilot::FG_ALTITUDE_TERRAIN));
580 * Set the autopilot terrain lock (true=on).
583 setAPTerrainLock (bool lock)
585 current_autopilot->set_AltitudeMode(FGAutopilot::FG_ALTITUDE_TERRAIN);
586 current_autopilot->set_AltitudeEnabled(lock);
587 current_autopilot->set_TargetAGL(
588 current_aircraft.fdm_state->get_Altitude_AGL() * SG_FEET_TO_METER
590 cout << "Target AGL = "
591 << current_aircraft.fdm_state->get_Altitude_AGL() * SG_FEET_TO_METER
597 * Get the autopilot target altitude in feet.
602 return current_autopilot->get_TargetClimbRate() * SG_METER_TO_FEET;
607 * Set the autopilot target altitude in feet.
610 setAPClimb (double rate)
612 current_autopilot->set_TargetClimbRate( rate * SG_FEET_TO_METER );
617 * Get the autopilot heading lock (true=on).
623 (current_autopilot->get_HeadingEnabled() &&
624 current_autopilot->get_HeadingMode() == DEFAULT_AP_HEADING_LOCK);
629 * Set the autopilot heading lock (true=on).
632 setAPHeadingLock (bool lock)
635 current_autopilot->set_HeadingMode(DEFAULT_AP_HEADING_LOCK);
636 current_autopilot->set_HeadingEnabled(true);
638 current_autopilot->set_HeadingEnabled(false);
644 * Get the autopilot heading bug in degrees.
649 return current_autopilot->get_DGTargetHeading();
654 * Set the autopilot heading bug in degrees.
657 setAPHeadingBug (double heading)
659 current_autopilot->set_DGTargetHeading( heading );
664 * Get the autopilot wing leveler lock (true=on).
670 (current_autopilot->get_HeadingEnabled() &&
671 current_autopilot->get_HeadingMode() == FGAutopilot::FG_TC_HEADING_LOCK);
676 * Set the autopilot wing leveler lock (true=on).
679 setAPWingLeveler (bool lock)
682 current_autopilot->set_HeadingMode(FGAutopilot::FG_TC_HEADING_LOCK);
683 current_autopilot->set_HeadingEnabled(true);
685 current_autopilot->set_HeadingEnabled(false);
690 * Return true if the autopilot is locked to NAV1.
696 (current_autopilot->get_HeadingEnabled() &&
697 current_autopilot->get_HeadingMode() == FGAutopilot::FG_HEADING_NAV1);
702 * Set the autopilot NAV1 lock.
705 setAPNAV1Lock (bool lock)
708 current_autopilot->set_HeadingMode(FGAutopilot::FG_HEADING_NAV1);
709 current_autopilot->set_HeadingEnabled(true);
710 } else if (current_autopilot->get_HeadingMode() ==
711 FGAutopilot::FG_HEADING_NAV1) {
712 current_autopilot->set_HeadingEnabled(false);
717 * Get the autopilot autothrottle lock.
720 getAPAutoThrottleLock ()
722 return current_autopilot->get_AutoThrottleEnabled();
727 * Set the autothrottle lock.
730 setAPAutoThrottleLock (bool lock)
732 current_autopilot->set_AutoThrottleEnabled(lock);
738 getAPRudderControl ()
740 if (getAPHeadingLock())
741 return current_autopilot->get_TargetHeading();
743 return globals->get_controls()->get_rudder();
748 setAPRudderControl (double value)
750 if (getAPHeadingLock()) {
751 SG_LOG(SG_GENERAL, SG_DEBUG, "setAPRudderControl " << value );
752 value -= current_autopilot->get_TargetHeading();
753 current_autopilot->HeadingAdjust(value < 0.0 ? -1.0 : 1.0);
755 globals->get_controls()->set_rudder(value);
761 getAPElevatorControl ()
763 if (getAPAltitudeLock())
764 return current_autopilot->get_TargetAltitude();
766 return globals->get_controls()->get_elevator();
771 setAPElevatorControl (double value)
773 if (getAPAltitudeLock()) {
774 SG_LOG(SG_GENERAL, SG_DEBUG, "setAPElevatorControl " << value );
775 value -= current_autopilot->get_TargetAltitude();
776 current_autopilot->AltitudeAdjust(value < 0.0 ? 100.0 : -100.0);
778 globals->get_controls()->set_elevator(value);
784 getAPThrottleControl ()
786 if (getAPAutoThrottleLock())
787 return 0.0; // always resets
789 return globals->get_controls()->get_throttle(0);
794 setAPThrottleControl (double value)
796 if (getAPAutoThrottleLock())
797 current_autopilot->AutoThrottleAdjust(value < 0.0 ? -0.01 : 0.01);
799 globals->get_controls()->set_throttle(0, value);
804 * Get the current visibility (meters).
809 #ifndef FG_OLD_WEATHER
810 return WeatherDatabase->getWeatherVisibility();
812 return current_weather.get_visibility();
818 * Set the current visibility (meters).
821 setVisibility (double visibility)
823 #ifndef FG_OLD_WEATHER
824 WeatherDatabase->setWeatherVisibility(visibility);
826 current_weather.set_visibility(visibility);
831 * Get the current wind north velocity (feet/second).
836 return current_aircraft.fdm_state->get_V_north_airmass();
841 * Set the current wind north velocity (feet/second).
844 setWindNorth (double speed)
846 current_aircraft.fdm_state
847 ->set_Velocities_Local_Airmass(speed, getWindEast(), getWindDown());
852 * Get the current wind east velocity (feet/second).
857 return current_aircraft.fdm_state->get_V_east_airmass();
862 * Set the current wind east velocity (feet/second).
865 setWindEast (double speed)
867 cout << "Set wind-east to " << speed << endl;
868 current_aircraft.fdm_state->set_Velocities_Local_Airmass(getWindNorth(),
875 * Get the current wind down velocity (feet/second).
880 return current_aircraft.fdm_state->get_V_down_airmass();
885 * Set the current wind down velocity (feet/second).
888 setWindDown (double speed)
890 current_aircraft.fdm_state->set_Velocities_Local_Airmass(getWindNorth(),
898 return globals->get_current_view()->get_fov();
904 globals->get_current_view()->set_fov( fov );
910 return globals->get_warp();
916 globals->set_warp(warp);
922 return globals->get_warp_delta();
926 setWarpDelta (long delta)
928 globals->set_warp_delta(delta);
932 setViewAxisLong (double axis)
938 setViewAxisLat (double axis)
950 setWindingCCW (bool state)
954 glFrontFace ( GL_CCW );
956 glFrontFace ( GL_CW );
962 #if defined(FX) && !defined(WIN32)
963 return global_fullscreen;
970 setFullScreen (bool state)
972 #if defined(FX) && !defined(WIN32)
973 global_fullscreen = state;
974 # if defined(XMESA_FX_FULLSCREEN) && defined(XMESA_FX_WINDOW)
975 XMesaSetFXmode( global_fullscreen ? XMESA_FX_FULLSCREEN : XMESA_FX_WINDOW );
983 return fdm_data_logging;
987 setFDMDataLogging (bool state)
989 // kludge; no getter or setter available
990 if (state != fdm_data_logging) {
991 fgToggleFDMdataLogging();
992 fdm_data_logging = state;
997 ////////////////////////////////////////////////////////////////////////
998 // Tie the properties.
999 ////////////////////////////////////////////////////////////////////////
1005 fgTie("/sim/freeze", getFreeze, setFreeze);
1006 fgTie("/sim/aircraft-dir", getAircraftDir, setAircraftDir);
1007 fgTie("/sim/view/offset-deg", getViewOffset, setViewOffset);
1008 fgSetArchivable("/sim/view/offset-deg");
1009 fgTie("/sim/view/goal-offset-deg", getGoalViewOffset, setGoalViewOffset);
1010 fgSetArchivable("/sim/view/goal-offset-deg");
1011 fgTie("/sim/view/pilot/x-offset-m",
1012 getPilotPositionXOffset, setPilotPositionXOffset);
1013 fgSetArchivable("/sim/view/pilot/x-offset-m");
1014 fgTie("/sim/view/pilot/y-offset-m",
1015 getPilotPositionYOffset, setPilotPositionYOffset);
1016 fgSetArchivable("/sim/view/pilot/y-offset-m");
1017 fgTie("/sim/view/pilot/z-offset-m",
1018 getPilotPositionZOffset, setPilotPositionZOffset);
1019 fgSetArchivable("/sim/view/pilot/z-offset-m");
1020 fgTie("/sim/time/gmt", getDateString, setDateString);
1021 fgSetArchivable("/sim/time/gmt");
1022 fgTie("/sim/time/gmt-string", getGMTString);
1023 fgTie("/sim/rendering/textures", getTextures, setTextures);
1026 fgTie("/orientation/heading-magnetic-deg", getHeadingMag);
1029 fgTie("/engines/engine[0]/rpm", getRPM);
1030 fgTie("/engines/engine[0]/egt-degf", getEGT);
1031 fgTie("/engines/engine[0]/cht-degf", getCHT);
1032 fgTie("/engines/engine[0]/oil-temperature-degf", getOilTemp);
1033 fgTie("/engines/engine[0]/mp-osi", getMP);
1034 fgTie("/engines/engine[0]/fuel-flow-gph", getFuelFlow);
1037 fgTie("/consumables/fuel/tank[0]/level-gal_us",
1038 getTank1Fuel, setTank1Fuel, false);
1039 fgSetArchivable("/consumables/fuel/tank[0]/level-gal_us");
1040 fgTie("/consumables/fuel/tank[1]/level-gal_us",
1041 getTank2Fuel, setTank2Fuel, false);
1042 fgSetArchivable("/consumables/fuel/tank[1]/level-gal_us");
1045 fgTie("/autopilot/locks/altitude", getAPAltitudeLock, setAPAltitudeLock);
1046 fgSetArchivable("/autopilot/locks/altitude");
1047 fgTie("/autopilot/settings/altitude-ft", getAPAltitude, setAPAltitude);
1048 fgSetArchivable("/autopilot/settings/altitude-ft");
1049 fgTie("/autopilot/locks/glide-slope", getAPGSLock, setAPGSLock);
1050 fgSetArchivable("/autopilot/locks/glide-slope");
1051 fgTie("/autopilot/locks/terrain", getAPTerrainLock, setAPTerrainLock);
1052 fgSetArchivable("/autopilot/locks/terrain");
1053 fgTie("/autopilot/settings/agl-ft", getAPAltitude, setAPAltitude);
1054 fgSetArchivable("/autopilot/settings/agl-ft");
1055 fgTie("/autopilot/settings/climb-rate-fpm", getAPClimb, setAPClimb, false);
1056 fgSetArchivable("/autopilot/settings/climb-rate-fpm");
1057 fgTie("/autopilot/locks/heading", getAPHeadingLock, setAPHeadingLock);
1058 fgSetArchivable("/autopilot/locks/heading");
1059 fgTie("/autopilot/settings/heading-bug-deg",
1060 getAPHeadingBug, setAPHeadingBug, false);
1061 fgSetArchivable("/autopilot/settings/heading-bug-deg");
1062 fgTie("/autopilot/locks/wing-leveler", getAPWingLeveler, setAPWingLeveler);
1063 fgSetArchivable("/autopilot/locks/wing-leveler");
1064 fgTie("/autopilot/locks/nav[0]", getAPNAV1Lock, setAPNAV1Lock);
1065 fgSetArchivable("/autopilot/locks/nav[0]");
1066 fgTie("/autopilot/locks/auto-throttle",
1067 getAPAutoThrottleLock, setAPAutoThrottleLock);
1068 fgSetArchivable("/autopilot/locks/auto-throttle");
1069 fgTie("/autopilot/control-overrides/rudder",
1070 getAPRudderControl, setAPRudderControl);
1071 fgSetArchivable("/autopilot/control-overrides/rudder");
1072 fgTie("/autopilot/control-overrides/elevator",
1073 getAPElevatorControl, setAPElevatorControl);
1074 fgSetArchivable("/autopilot/control-overrides/elevator");
1075 fgTie("/autopilot/control-overrides/throttle",
1076 getAPThrottleControl, setAPThrottleControl);
1077 fgSetArchivable("/autopilot/control-overrides/throttle");
1080 fgTie("/environment/visibility-m", getVisibility, setVisibility);
1081 fgSetArchivable("/environment/visibility-m");
1082 fgTie("/environment/wind-north-fps", getWindNorth, setWindNorth);
1083 fgSetArchivable("/environment/wind-north-fps");
1084 fgTie("/environment/wind-east-fps", getWindEast, setWindEast);
1085 fgSetArchivable("/environment/wind-east-fps");
1086 fgTie("/environment/wind-down-fps", getWindDown, setWindDown);
1087 fgSetArchivable("/environment/wind-down-fps");
1089 fgTie("/environment/magnetic-variation-deg", getMagVar);
1090 fgTie("/environment/magnetic-dip-deg", getMagDip);
1093 fgTie("/sim/field-of-view", getFOV, setFOV);
1094 fgSetArchivable("/sim/field-of-view");
1095 fgTie("/sim/time/warp", getWarp, setWarp, false);
1096 fgTie("/sim/time/warp-delta", getWarpDelta, setWarpDelta);
1097 fgTie("/sim/view/axes/long", (double(*)())0, setViewAxisLong);
1098 fgTie("/sim/view/axes/lat", (double(*)())0, setViewAxisLat);
1100 // Misc. Temporary junk.
1101 fgTie("/sim/temp/winding-ccw", getWindingCCW, setWindingCCW, false);
1102 fgTie("/sim/temp/full-screen", getFullScreen, setFullScreen);
1103 fgTie("/sim/temp/fdm-data-logging", getFDMDataLogging, setFDMDataLogging);
1111 _set_view_from_axes();
1116 ////////////////////////////////////////////////////////////////////////
1117 // Save and restore.
1118 ////////////////////////////////////////////////////////////////////////
1122 * Save the current state of the simulator to a stream.
1125 fgSaveFlight (ostream &output)
1128 writeProperties(output, globals->get_props());
1129 } catch (const sg_exception &e) {
1130 guiErrorMessage("Error saving flight: ", e);
1138 * Restore the current state of the simulator from a stream.
1141 fgLoadFlight (istream &input)
1143 SGPropertyNode props;
1145 readProperties(input, &props);
1146 } catch (const sg_exception &e) {
1147 guiErrorMessage("Error reading saved flight: ", e);
1150 copyProperties(&props, globals->get_props());
1151 // When loading a flight, make it the
1152 // new initial state.
1153 globals->saveInitialState();
1159 ////////////////////////////////////////////////////////////////////////
1160 // Implementation of FGCondition.
1161 ////////////////////////////////////////////////////////////////////////
1163 FGCondition::FGCondition ()
1167 FGCondition::~FGCondition ()
1173 ////////////////////////////////////////////////////////////////////////
1174 // Implementation of FGPropertyCondition.
1175 ////////////////////////////////////////////////////////////////////////
1177 FGPropertyCondition::FGPropertyCondition (const string &propname)
1178 : _node(fgGetNode(propname, true))
1182 FGPropertyCondition::~FGPropertyCondition ()
1188 ////////////////////////////////////////////////////////////////////////
1189 // Implementation of FGNotCondition.
1190 ////////////////////////////////////////////////////////////////////////
1192 FGNotCondition::FGNotCondition (FGCondition * condition)
1193 : _condition(condition)
1197 FGNotCondition::~FGNotCondition ()
1203 FGNotCondition::test () const
1205 return !(_condition->test());
1210 ////////////////////////////////////////////////////////////////////////
1211 // Implementation of FGAndCondition.
1212 ////////////////////////////////////////////////////////////////////////
1214 FGAndCondition::FGAndCondition ()
1218 FGAndCondition::~FGAndCondition ()
1220 for (unsigned int i = 0; i < _conditions.size(); i++)
1221 delete _conditions[i];
1225 FGAndCondition::test () const
1227 int nConditions = _conditions.size();
1228 for (int i = 0; i < nConditions; i++) {
1229 if (!_conditions[i]->test())
1236 FGAndCondition::addCondition (FGCondition * condition)
1238 _conditions.push_back(condition);
1243 ////////////////////////////////////////////////////////////////////////
1244 // Implementation of FGOrCondition.
1245 ////////////////////////////////////////////////////////////////////////
1247 FGOrCondition::FGOrCondition ()
1251 FGOrCondition::~FGOrCondition ()
1253 for (unsigned int i = 0; i < _conditions.size(); i++)
1254 delete _conditions[i];
1258 FGOrCondition::test () const
1260 int nConditions = _conditions.size();
1261 for (int i = 0; i < nConditions; i++) {
1262 if (_conditions[i]->test())
1269 FGOrCondition::addCondition (FGCondition * condition)
1271 _conditions.push_back(condition);
1276 ////////////////////////////////////////////////////////////////////////
1277 // Implementation of FGComparisonCondition.
1278 ////////////////////////////////////////////////////////////////////////
1281 doComparison (const SGPropertyNode * left, const SGPropertyNode *right)
1283 switch (left->getType()) {
1284 case SGPropertyNode::BOOL: {
1285 bool v1 = left->getBoolValue();
1286 bool v2 = right->getBoolValue();
1288 return FGComparisonCondition::LESS_THAN;
1290 return FGComparisonCondition::GREATER_THAN;
1292 return FGComparisonCondition::EQUALS;
1295 case SGPropertyNode::INT: {
1296 int v1 = left->getIntValue();
1297 int v2 = right->getIntValue();
1299 return FGComparisonCondition::LESS_THAN;
1301 return FGComparisonCondition::GREATER_THAN;
1303 return FGComparisonCondition::EQUALS;
1306 case SGPropertyNode::LONG: {
1307 long v1 = left->getLongValue();
1308 long v2 = right->getLongValue();
1310 return FGComparisonCondition::LESS_THAN;
1312 return FGComparisonCondition::GREATER_THAN;
1314 return FGComparisonCondition::EQUALS;
1317 case SGPropertyNode::FLOAT: {
1318 float v1 = left->getFloatValue();
1319 float v2 = right->getFloatValue();
1321 return FGComparisonCondition::LESS_THAN;
1323 return FGComparisonCondition::GREATER_THAN;
1325 return FGComparisonCondition::EQUALS;
1328 case SGPropertyNode::DOUBLE: {
1329 double v1 = left->getDoubleValue();
1330 double v2 = right->getDoubleValue();
1332 return FGComparisonCondition::LESS_THAN;
1334 return FGComparisonCondition::GREATER_THAN;
1336 return FGComparisonCondition::EQUALS;
1339 case SGPropertyNode::STRING:
1340 case SGPropertyNode::NONE:
1341 case SGPropertyNode::UNSPECIFIED: {
1342 string v1 = left->getStringValue();
1343 string v2 = right->getStringValue();
1345 return FGComparisonCondition::LESS_THAN;
1347 return FGComparisonCondition::GREATER_THAN;
1349 return FGComparisonCondition::EQUALS;
1353 throw sg_exception("Unrecognized node type");
1358 FGComparisonCondition::FGComparisonCondition (Type type, bool reverse)
1367 FGComparisonCondition::~FGComparisonCondition ()
1369 delete _right_value;
1373 FGComparisonCondition::test () const
1375 // Always fail if incompletely specified
1376 if (_left_property == 0 ||
1377 (_right_property == 0 && _right_value == 0))
1380 // Get LESS_THAN, EQUALS, or GREATER_THAN
1382 doComparison(_left_property,
1383 (_right_property != 0 ? _right_property : _right_value));
1385 return (cmp == _type);
1387 return (cmp != _type);
1391 FGComparisonCondition::setLeftProperty (const string &propname)
1393 _left_property = fgGetNode(propname, true);
1397 FGComparisonCondition::setRightProperty (const string &propname)
1399 delete _right_value;
1401 _right_property = fgGetNode(propname, true);
1405 FGComparisonCondition::setRightValue (const SGPropertyNode *node)
1407 _right_property = 0;
1408 delete _right_value;
1409 _right_value = new SGPropertyNode(*node);
1414 ////////////////////////////////////////////////////////////////////////
1415 // Read a condition and use it if necessary.
1416 ////////////////////////////////////////////////////////////////////////
1418 // Forward declaration
1419 static FGCondition * readCondition (const SGPropertyNode * node);
1421 static FGCondition *
1422 readPropertyCondition (const SGPropertyNode * node)
1424 return new FGPropertyCondition(node->getStringValue());
1427 static FGCondition *
1428 readNotCondition (const SGPropertyNode * node)
1430 int nChildren = node->nChildren();
1431 for (int i = 0; i < nChildren; i++) {
1432 const SGPropertyNode * child = node->getChild(i);
1433 FGCondition * condition = readCondition(child);
1435 return new FGNotCondition(condition);
1437 SG_LOG(SG_COCKPIT, SG_ALERT, "Panel: empty 'not' condition");
1441 static FGCondition *
1442 readAndConditions (const SGPropertyNode * node)
1444 FGAndCondition * andCondition = new FGAndCondition;
1445 int nChildren = node->nChildren();
1446 for (int i = 0; i < nChildren; i++) {
1447 const SGPropertyNode * child = node->getChild(i);
1448 FGCondition * condition = readCondition(child);
1450 andCondition->addCondition(condition);
1452 return andCondition;
1455 static FGCondition *
1456 readOrConditions (const SGPropertyNode * node)
1458 FGOrCondition * orCondition = new FGOrCondition;
1459 int nChildren = node->nChildren();
1460 for (int i = 0; i < nChildren; i++) {
1461 const SGPropertyNode * child = node->getChild(i);
1462 FGCondition * condition = readCondition(child);
1464 orCondition->addCondition(condition);
1469 static FGCondition *
1470 readComparison (const SGPropertyNode * node,
1471 FGComparisonCondition::Type type,
1474 FGComparisonCondition * condition = new FGComparisonCondition(type, reverse);
1475 condition->setLeftProperty(node->getStringValue("property[0]"));
1476 if (node->hasValue("property[1]"))
1477 condition->setRightProperty(node->getStringValue("property[1]"));
1479 condition->setRightValue(node->getChild("value", 0));
1484 static FGCondition *
1485 readCondition (const SGPropertyNode * node)
1487 const string &name = node->getName();
1488 if (name == "property")
1489 return readPropertyCondition(node);
1490 else if (name == "not")
1491 return readNotCondition(node);
1492 else if (name == "and")
1493 return readAndConditions(node);
1494 else if (name == "or")
1495 return readOrConditions(node);
1496 else if (name == "less-than")
1497 return readComparison(node, FGComparisonCondition::LESS_THAN, false);
1498 else if (name == "less-than-equals")
1499 return readComparison(node, FGComparisonCondition::GREATER_THAN, true);
1500 else if (name == "greater-than")
1501 return readComparison(node, FGComparisonCondition::GREATER_THAN, false);
1502 else if (name == "greater-than-equals")
1503 return readComparison(node, FGComparisonCondition::LESS_THAN, true);
1504 else if (name == "equals")
1505 return readComparison(node, FGComparisonCondition::EQUALS, false);
1506 else if (name == "not-equals")
1507 return readComparison(node, FGComparisonCondition::EQUALS, true);
1514 ////////////////////////////////////////////////////////////////////////
1515 // Implementation of FGConditional.
1516 ////////////////////////////////////////////////////////////////////////
1518 FGConditional::FGConditional ()
1523 FGConditional::~FGConditional ()
1529 FGConditional::setCondition (FGCondition * condition)
1532 _condition = condition;
1536 FGConditional::test () const
1538 return ((_condition == 0) || _condition->test());
1543 // The top-level is always an implicit 'and' group
1545 fgReadCondition (const SGPropertyNode * node)
1547 return readAndConditions(node);
1551 // end of fg_props.cxx