-// fg_props.cxx -- support for
+// fg_props.cxx -- support for FlightGear properties.
//
-// Written by David Megginson, started November 1999.
+// Written by David Megginson, started 2000.
//
-// Copyright (C) 1999, 2000 David Megginson - david@megginson.com
+// Copyright (C) 2000, 2001 David Megginson - david@megginson.com
//
// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License as
//
// $Id$
-#include <iostream>
+#ifdef HAVE_CONFIG_H
+# include <simgear/compiler.h>
+#endif
-#include <Main/fgfs.hxx>
+#include STL_IOSTREAM
+
+#include <Autopilot/newauto.hxx>
+#include <Aircraft/aircraft.hxx>
+#include <Time/tmp.hxx>
+#include <FDM/UIUCModel/uiuc_aircraftdir.h>
+#ifndef FG_OLD_WEATHER
+# include <WeatherCM/FGLocalWeatherDatabase.h>
+#else
+# include <Weather/weather.hxx>
+#endif
+
+#include "fgfs.hxx"
#include "fg_props.hxx"
-using std::istream;
-using std::ostream;
+#if !defined(SG_HAVE_NATIVE_SGI_COMPILERS)
+SG_USING_STD(istream);
+SG_USING_STD(ostream);
+#endif
+
+#define DEFAULT_AP_HEADING_LOCK FGAutopilot::FG_DG_HEADING_LOCK
+
+static double getWindNorth ();
+static double getWindEast ();
+static double getWindDown ();
+
+// Allow the view to be set from two axes (i.e. a joystick hat)
+// This needs to be in FGViewer itself, somehow.
+static double axisLong = 0.0;
+static double axisLat = 0.0;
+
+/**
+ * Utility function.
+ */
+static inline void
+_set_view_from_axes ()
+{
+ // Take no action when hat is centered
+ if (axisLong == 0 && axisLat == 0)
+ return;
+
+ double viewDir = 0;
+
+ if (axisLong < 0) { // Longitudinal axis forward
+ if (axisLat < 0)
+ viewDir = 45;
+ else if (axisLat > 0)
+ viewDir = 315;
+ else
+ viewDir = 0;
+ } else if (axisLong > 0) { // Longitudinal axis backward
+ if (axisLat < 0)
+ viewDir = 135;
+ else if (axisLat > 0)
+ viewDir = 225;
+ else
+ viewDir = 180;
+ } else { // Longitudinal axis neutral
+ if (axisLat < 0)
+ viewDir = 90;
+ else
+ viewDir = 270;
+ }
+
+ globals->get_current_view()->set_goal_view_offset(viewDir*SGD_DEGREES_TO_RADIANS);
+// globals->get_current_view()->set_view_offset(viewDir*SGD_DEGREES_TO_RADIANS);
+}
+
+\f
+////////////////////////////////////////////////////////////////////////
+// Default property bindings (not yet handled by any module).
+////////////////////////////////////////////////////////////////////////
+
+/**
+ * Return the current aircraft directory (UIUC) as a string.
+ */
+static string
+getAircraftDir ()
+{
+ return aircraft_dir;
+}
+
+
+/**
+ * Set the current aircraft directory (UIUC).
+ */
+static void
+setAircraftDir (string dir)
+{
+ if (getAircraftDir() != dir) {
+ aircraft_dir = dir;
+// needReinit(); FIXME!!
+ }
+}
+
+
+/**
+ * Get the current view offset in degrees.
+ */
+static double
+getViewOffset ()
+{
+ return (globals->get_current_view()
+ ->get_view_offset() * SGD_RADIANS_TO_DEGREES);
+}
+
+
+static void
+setViewOffset (double offset)
+{
+ globals->get_current_view()->set_view_offset(offset * SGD_DEGREES_TO_RADIANS);
+}
+
+static double
+getGoalViewOffset ()
+{
+ return (globals->get_current_view()
+ ->get_goal_view_offset() * SGD_RADIANS_TO_DEGREES);
+}
+
+static void
+setGoalViewOffset (double offset)
+{
+ globals->get_current_view()
+ ->set_goal_view_offset(offset * SGD_DEGREES_TO_RADIANS);
+}
+
+
+/**
+ * Return the current Zulu time.
+ */
+static string
+getDateString ()
+{
+ string out;
+ char buf[64];
+ struct tm * t = globals->get_time_params()->getGmt();
+ sprintf(buf, "%.4d-%.2d-%.2dT%.2d:%.2d:%.2d",
+ t->tm_year + 1900, t->tm_mon + 1, t->tm_mday,
+ t->tm_hour, t->tm_min, t->tm_sec);
+ out = buf;
+ return out;
+}
+
+
+/**
+ * Set the current Zulu time.
+ */
+static void
+setDateString (string date_string)
+{
+ SGTime * st = globals->get_time_params();
+ struct tm * current_time = st->getGmt();
+ struct tm new_time;
+
+ // Scan for basic ISO format
+ // YYYY-MM-DDTHH:MM:SS
+ int ret = sscanf(date_string.c_str(), "%d-%d-%dT%d:%d:%d",
+ &(new_time.tm_year), &(new_time.tm_mon),
+ &(new_time.tm_mday), &(new_time.tm_hour),
+ &(new_time.tm_min), &(new_time.tm_sec));
+
+ // Be pretty picky about this, so
+ // that strange things don't happen
+ // if the save file has been edited
+ // by hand.
+ if (ret != 6) {
+ SG_LOG(SG_INPUT, SG_ALERT, "Date/time string " << date_string
+ << " not in YYYY-MM-DDTHH:MM:SS format; skipped");
+ return;
+ }
+
+ // OK, it looks like we got six
+ // values, one way or another.
+ new_time.tm_year -= 1900;
+ new_time.tm_mon -= 1;
+
+ // Now, tell flight gear to use
+ // the new time. This was far
+ // too difficult, by the way.
+ long int warp =
+ mktime(&new_time) - mktime(current_time) + globals->get_warp();
+ double lon = current_aircraft.fdm_state->get_Longitude();
+ double lat = current_aircraft.fdm_state->get_Latitude();
+ globals->set_warp(warp);
+ st->update(lon, lat, warp);
+ fgUpdateSkyAndLightingParams();
+}
+
+/**
+ * Return the GMT as a string.
+ */
+static string
+getGMTString ()
+{
+ string out;
+ char buf[16];
+ struct tm * t = globals->get_time_params()->getGmt();
+ sprintf(buf, " %.2d:%.2d:%.2d",
+ t->tm_hour, t->tm_min, t->tm_sec);
+ out = buf;
+ return out;
+}
+
+/**
+ * Return the magnetic variation
+ */
+static double
+getMagVar ()
+{
+ return globals->get_mag()->get_magvar() * SGD_RADIANS_TO_DEGREES;
+}
+
+
+/**
+ * Return the magnetic dip
+ */
+static double
+getMagDip ()
+{
+ return globals->get_mag()->get_magdip() * SGD_RADIANS_TO_DEGREES;
+}
+
+
+/**
+ * Return the current heading in degrees.
+ */
+static double
+getHeadingMag ()
+{
+ return current_aircraft.fdm_state->get_Psi() * SGD_RADIANS_TO_DEGREES - getMagVar();
+}
+
+
+/**
+ * Return the current engine0 rpm
+ */
+static double
+getRPM ()
+{
+ if ( current_aircraft.fdm_state->get_engine(0) != NULL ) {
+ return current_aircraft.fdm_state->get_engine(0)->get_RPM();
+ } else {
+ return 0.0;
+ }
+}
+
+
+/**
+ * Return the current engine0 EGT.
+ */
+static double
+getEGT ()
+{
+ if ( current_aircraft.fdm_state->get_engine(0) != NULL ) {
+ return current_aircraft.fdm_state->get_engine(0)->get_EGT();
+ } else {
+ return 0.0;
+ }
+}
+
+/**
+ * Return the current engine0 CHT.
+ */
+static double
+getCHT ()
+{
+ if ( current_aircraft.fdm_state->get_engine(0) != NULL ) {
+ return current_aircraft.fdm_state->get_engine(0)->get_CHT();
+ } else {
+ return 0.0;
+ }
+}
+
+/**
+ * Return the current engine0 Manifold Pressure.
+ */
+static double
+getMP ()
+{
+ if ( current_aircraft.fdm_state->get_engine(0) != NULL ) {
+ return current_aircraft.fdm_state->get_engine(0)->get_Manifold_Pressure();
+ } else {
+ return 0.0;
+ }
+}
+
+
+/**
+ * Return the current engine0 fuel flow
+ */
+static double
+getFuelFlow ()
+{
+ if ( current_aircraft.fdm_state->get_engine(0) != NULL ) {
+ return current_aircraft.fdm_state->get_engine(0)->get_Fuel_Flow();
+ } else {
+ return 0.0;
+ }
+}
+
+/**
+ * Return the fuel level in tank 1
+ */
+static double
+getTank1Fuel ()
+{
+ return current_aircraft.fdm_state->get_Tank1Fuel();
+}
+
+static void
+setTank1Fuel ( double gals )
+{
+ current_aircraft.fdm_state->set_Tank1Fuel( gals );
+}
+
+/**
+ * Return the fuel level in tank 2
+ */
+static double
+getTank2Fuel ()
+{
+ return current_aircraft.fdm_state->get_Tank2Fuel();
+}
+
+static void
+setTank2Fuel ( double gals )
+{
+ current_aircraft.fdm_state->set_Tank2Fuel( gals );
+}
+
+
+/**
+ * Get the autopilot altitude lock (true=on).
+ */
+static bool
+getAPAltitudeLock ()
+{
+ return current_autopilot->get_AltitudeEnabled();
+}
+
+
+/**
+ * Set the autopilot altitude lock (true=on).
+ */
+static void
+setAPAltitudeLock (bool lock)
+{
+ current_autopilot->set_AltitudeMode(FGAutopilot::FG_ALTITUDE_LOCK);
+ current_autopilot->set_AltitudeEnabled(lock);
+}
+
+/**
+ * Get the autopilot target altitude in feet.
+ */
+static double
+getAPAltitude ()
+{
+ return current_autopilot->get_TargetAltitude() * SG_METER_TO_FEET;
+}
+
+
+/**
+ * Set the autopilot target altitude in feet.
+ */
+static void
+setAPAltitude (double altitude)
+{
+ current_autopilot->set_TargetAltitude( altitude * SG_FEET_TO_METER );
+}
+
+/**
+ * Get the autopilot altitude lock (true=on).
+ */
+static bool
+getAPGSLock ()
+{
+ return current_autopilot->get_AltitudeEnabled();
+}
+
+
+/**
+ * Set the autopilot altitude lock (true=on).
+ */
+static void
+setAPGSLock (bool lock)
+{
+ current_autopilot->set_AltitudeMode(FGAutopilot::FG_ALTITUDE_GS1);
+ current_autopilot->set_AltitudeEnabled(lock);
+}
+
+
+/**
+ * Get the autopilot target altitude in feet.
+ */
+static double
+getAPClimb ()
+{
+ return current_autopilot->get_TargetClimbRate() * SG_METER_TO_FEET;
+}
+
+
+/**
+ * Set the autopilot target altitude in feet.
+ */
+static void
+setAPClimb (double rate)
+{
+ current_autopilot->set_TargetClimbRate( rate * SG_FEET_TO_METER );
+}
+
+
+/**
+ * Get the autopilot heading lock (true=on).
+ */
+static bool
+getAPHeadingLock ()
+{
+ return
+ (current_autopilot->get_HeadingEnabled() &&
+ current_autopilot->get_HeadingMode() == DEFAULT_AP_HEADING_LOCK);
+}
+
+
+/**
+ * Set the autopilot heading lock (true=on).
+ */
+static void
+setAPHeadingLock (bool lock)
+{
+ if (lock) {
+ current_autopilot->set_HeadingMode(DEFAULT_AP_HEADING_LOCK);
+ current_autopilot->set_HeadingEnabled(true);
+ } else {
+ current_autopilot->set_HeadingEnabled(false);
+ }
+}
+
+
+/**
+ * Get the autopilot heading bug in degrees.
+ */
+static double
+getAPHeadingBug ()
+{
+ return current_autopilot->get_DGTargetHeading();
+}
+
+
+/**
+ * Set the autopilot heading bug in degrees.
+ */
+static void
+setAPHeadingBug (double heading)
+{
+ current_autopilot->set_DGTargetHeading( heading );
+}
+
+
+/**
+ * Get the autopilot wing leveler lock (true=on).
+ */
+static bool
+getAPWingLeveler ()
+{
+ return
+ (current_autopilot->get_HeadingEnabled() &&
+ current_autopilot->get_HeadingMode() == FGAutopilot::FG_TC_HEADING_LOCK);
+}
+
+
+/**
+ * Set the autopilot wing leveler lock (true=on).
+ */
+static void
+setAPWingLeveler (bool lock)
+{
+ if (lock) {
+ current_autopilot->set_HeadingMode(FGAutopilot::FG_TC_HEADING_LOCK);
+ current_autopilot->set_HeadingEnabled(true);
+ } else {
+ current_autopilot->set_HeadingEnabled(false);
+ }
+}
+
+/**
+ * Return true if the autopilot is locked to NAV1.
+ */
+static bool
+getAPNAV1Lock ()
+{
+ return
+ (current_autopilot->get_HeadingEnabled() &&
+ current_autopilot->get_HeadingMode() == FGAutopilot::FG_HEADING_NAV1);
+}
+
+
+/**
+ * Set the autopilot NAV1 lock.
+ */
+static void
+setAPNAV1Lock (bool lock)
+{
+ if (lock) {
+ current_autopilot->set_HeadingMode(FGAutopilot::FG_HEADING_NAV1);
+ current_autopilot->set_HeadingEnabled(true);
+ } else if (current_autopilot->get_HeadingMode() ==
+ FGAutopilot::FG_HEADING_NAV1) {
+ current_autopilot->set_HeadingEnabled(false);
+ }
+}
+
+/**
+ * Get the autopilot autothrottle lock.
+ */
+static bool
+getAPAutoThrottleLock ()
+{
+ return current_autopilot->get_AutoThrottleEnabled();
+}
+
+
+/**
+ * Set the autothrottle lock.
+ */
+static void
+setAPAutoThrottleLock (bool lock)
+{
+ current_autopilot->set_AutoThrottleEnabled(lock);
+}
+
+
+// kludge
+static double
+getAPRudderControl ()
+{
+ if (getAPHeadingLock())
+ return current_autopilot->get_TargetHeading();
+ else
+ return controls.get_rudder();
+}
+
+// kludge
+static void
+setAPRudderControl (double value)
+{
+ if (getAPHeadingLock()) {
+ SG_LOG(SG_GENERAL, SG_DEBUG, "setAPRudderControl " << value );
+ value -= current_autopilot->get_TargetHeading();
+ current_autopilot->HeadingAdjust(value < 0.0 ? -1.0 : 1.0);
+ } else {
+ controls.set_rudder(value);
+ }
+}
+
+// kludge
+static double
+getAPElevatorControl ()
+{
+ if (getAPAltitudeLock())
+ return current_autopilot->get_TargetAltitude();
+ else
+ return controls.get_elevator();
+}
+
+// kludge
+static void
+setAPElevatorControl (double value)
+{
+ if (getAPAltitudeLock()) {
+ SG_LOG(SG_GENERAL, SG_DEBUG, "setAPElevatorControl " << value );
+ value -= current_autopilot->get_TargetAltitude();
+ current_autopilot->AltitudeAdjust(value < 0.0 ? 100.0 : -100.0);
+ } else {
+ controls.set_elevator(value);
+ }
+}
+
+// kludge
+static double
+getAPThrottleControl ()
+{
+ if (getAPAutoThrottleLock())
+ return 0.0; // always resets
+ else
+ return controls.get_throttle(0);
+}
+
+// kludge
+static void
+setAPThrottleControl (double value)
+{
+ if (getAPAutoThrottleLock())
+ current_autopilot->AutoThrottleAdjust(value < 0.0 ? -0.01 : 0.01);
+ else
+ controls.set_throttle(0, value);
+}
+
+
+/**
+ * Get the current visibility (meters).
+ */
+static double
+getVisibility ()
+{
+#ifndef FG_OLD_WEATHER
+ return WeatherDatabase->getWeatherVisibility();
+#else
+ return current_weather.get_visibility();
+#endif
+}
+
+
+/**
+ * Set the current visibility (meters).
+ */
+static void
+setVisibility (double visibility)
+{
+#ifndef FG_OLD_WEATHER
+ WeatherDatabase->setWeatherVisibility(visibility);
+#else
+ current_weather.set_visibility(visibility);
+#endif
+}
+
+/**
+ * Get the current wind north velocity (feet/second).
+ */
+static double
+getWindNorth ()
+{
+ return current_aircraft.fdm_state->get_V_north_airmass();
+}
+
+
+/**
+ * Set the current wind north velocity (feet/second).
+ */
+static void
+setWindNorth (double speed)
+{
+ current_aircraft.fdm_state
+ ->set_Velocities_Local_Airmass(speed, getWindEast(), getWindDown());
+}
+
+
+/**
+ * Get the current wind east velocity (feet/second).
+ */
+static double
+getWindEast ()
+{
+ return current_aircraft.fdm_state->get_V_east_airmass();
+}
+
+
+/**
+ * Set the current wind east velocity (feet/second).
+ */
+static void
+setWindEast (double speed)
+{
+ cout << "Set wind-east to " << speed << endl;
+ current_aircraft.fdm_state->set_Velocities_Local_Airmass(getWindNorth(),
+ speed,
+ getWindDown());
+}
+
+
+/**
+ * Get the current wind down velocity (feet/second).
+ */
+static double
+getWindDown ()
+{
+ return current_aircraft.fdm_state->get_V_down_airmass();
+}
+
+
+/**
+ * Set the current wind down velocity (feet/second).
+ */
+static void
+setWindDown (double speed)
+{
+ current_aircraft.fdm_state->set_Velocities_Local_Airmass(getWindNorth(),
+ getWindEast(),
+ speed);
+}
+
+static double
+getFOV ()
+{
+ return globals->get_current_view()->get_fov();
+}
+
+static void
+setFOV (double fov)
+{
+ globals->get_current_view()->set_fov( fov );
+}
+
+
+static void
+setViewAxisLong (double axis)
+{
+ axisLong = axis;
+}
+
+static void
+setViewAxisLat (double axis)
+{
+ axisLat = axis;
+}
+
+
+void
+fgInitProps ()
+{
+ // Simulation
+ fgTie("/sim/aircraft-dir", getAircraftDir, setAircraftDir);
+ fgTie("/sim/view/offset", getViewOffset, setViewOffset);
+ fgTie("/sim/view/goal-offset", getGoalViewOffset, setGoalViewOffset);
+ fgTie("/sim/time/gmt", getDateString, setDateString);
+ fgTie("/sim/time/gmt-string", getGMTString);
+
+ // Orientation
+ fgTie("/orientation/heading-magnetic", getHeadingMag);
+
+ // Engine
+ fgTie("/engines/engine0/rpm", getRPM);
+ fgTie("/engines/engine0/egt", getEGT);
+ fgTie("/engines/engine0/cht", getCHT);
+ fgTie("/engines/engine0/mp", getMP);
+ fgTie("/engines/engine0/fuel-flow", getFuelFlow);
+
+ //consumables
+ fgTie("/consumables/fuel/tank1/level", getTank1Fuel, setTank1Fuel, false);
+ fgTie("/consumables/fuel/tank2/level", getTank2Fuel, setTank2Fuel, false);
+
+ // Autopilot
+ fgTie("/autopilot/locks/altitude", getAPAltitudeLock, setAPAltitudeLock);
+ fgTie("/autopilot/settings/altitude", getAPAltitude, setAPAltitude);
+ fgTie("/autopilot/locks/glide-slope", getAPGSLock, setAPGSLock);
+ fgTie("/autopilot/settings/climb-rate", getAPClimb, setAPClimb, false);
+ fgTie("/autopilot/locks/heading", getAPHeadingLock, setAPHeadingLock);
+ fgTie("/autopilot/settings/heading-bug", getAPHeadingBug, setAPHeadingBug,
+ false);
+ fgTie("/autopilot/locks/wing-leveler", getAPWingLeveler, setAPWingLeveler);
+ fgTie("/autopilot/locks/nav1", getAPNAV1Lock, setAPNAV1Lock);
+ fgTie("/autopilot/locks/auto-throttle",
+ getAPAutoThrottleLock, setAPAutoThrottleLock);
+ fgTie("/autopilot/control-overrides/rudder",
+ getAPRudderControl, setAPRudderControl);
+ fgTie("/autopilot/control-overrides/elevator",
+ getAPElevatorControl, setAPElevatorControl);
+ fgTie("/autopilot/control-overrides/throttle",
+ getAPThrottleControl, setAPThrottleControl);
+
+ // Environment
+ fgTie("/environment/visibility", getVisibility, setVisibility);
+ fgTie("/environment/wind-north", getWindNorth, setWindNorth);
+ fgTie("/environment/wind-east", getWindEast, setWindEast);
+ fgTie("/environment/wind-down", getWindDown, setWindDown);
+ fgTie("/environment/magnetic-variation", getMagVar);
+ fgTie("/environment/magnetic-dip", getMagDip);
+
+ // View
+ fgTie("/sim/field-of-view", getFOV, setFOV);
+ fgTie("/sim/view/axes/long", (double(*)())0, setViewAxisLong);
+ fgTie("/sim/view/axes/lat", (double(*)())0, setViewAxisLat);
+}
+
+
+void
+fgUpdateProps ()
+{
+ _set_view_from_axes();
+}
+
+
+\f
+////////////////////////////////////////////////////////////////////////
+// Save and restore.
+////////////////////////////////////////////////////////////////////////
/**
bool
fgLoadFlight (istream &input)
{
- return readProperties(input, globals->get_props());
+ SGPropertyNode props;
+ if (readProperties(input, &props)) {
+ copyProperties(&props, globals->get_props());
+ // When loading a flight, make it the
+ // new initial state.
+ globals->saveInitialState();
+ } else {
+ SG_LOG(SG_INPUT, SG_ALERT, "Error restoring flight; aborted");
+ return false;
+ }
+
+ return true;
}
// end of fg_props.cxx
projects / flightgear.git / blobdiff