+ FG_LOG(FG_GENERAL, FG_INFO, "Ending BFI reinit");
+}
+
+// BEGIN: kludge 2000-12-07
+// This is a kludge around a LaRCsim problem; see setAltitude()
+// for details.
+static int _altitude_countdown = 0;
+static double _requested_altitude = -9999;
+static bool _saved_freeze = false;
+static inline void _check_altitude ()
+{
+ if (_altitude_countdown > 0) {
+ _altitude_countdown--;
+ if (_altitude_countdown == 0) {
+ current_aircraft.fdm_state->set_Altitude(_requested_altitude);
+ globals->set_freeze(_saved_freeze);
+ }
+ }
+}
+
+static int _lighting_countdown = 0;
+static inline void _check_lighting ()
+{
+ if (_lighting_countdown > 0) {
+ _lighting_countdown--;
+ if (_lighting_countdown == 0)
+ fgUpdateSkyAndLightingParams();
+ }
+}
+// END: kludge
+
+
+// BEGIN: kludge
+// 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;
+
+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*DEG_TO_RAD);
+// globals->get_current_view()->set_view_offset(viewDir*DEG_TO_RAD);
+}
+
+// END: kludge
+
+
+\f
+////////////////////////////////////////////////////////////////////////
+// Local functions
+////////////////////////////////////////////////////////////////////////
+
+/**
+ * Initialize the BFI by binding its functions to properties.
+ *
+ * TODO: perhaps these should migrate into the individual modules
+ * (i.e. they should register themselves).
+ */
+void
+FGBFI::init ()
+{
+ FG_LOG(FG_GENERAL, FG_INFO, "Starting BFI init");
+ // Simulation
+ fgTie("/sim/flight-model", getFlightModel, setFlightModel);
+ fgTie("/sim/aircraft", getAircraft, setAircraft);
+ fgTie("/sim/aircraft-dir", getAircraftDir, setAircraftDir);
+ fgTie("/sim/time/gmt", getDateString, setDateString);
+ fgTie("/sim/time/gmt-string", getGMTString);
+ fgTie("/sim/hud/visibility", getHUDVisible, setHUDVisible);
+ fgTie("/sim/panel/visibility", getPanelVisible, setPanelVisible);
+ fgTie("/sim/panel/x-offset", getPanelXOffset, setPanelXOffset);
+ fgTie("/sim/panel/y-offset", getPanelYOffset, setPanelYOffset);
+
+ // Position
+ fgTie("/position/airport-id", getTargetAirport, setTargetAirport);
+ fgTie("/position/latitude", getLatitude, setLatitude);
+ fgTie("/position/longitude", getLongitude, setLongitude);
+ fgTie("/position/altitude", getAltitude, setAltitude);
+ fgTie("/position/altitude-agl", getAGL);
+
+ // Orientation
+ fgTie("/orientation/heading", getHeading, setHeading);
+ fgTie("/orientation/heading-magnetic", getHeadingMag);
+ fgTie("/orientation/pitch", getPitch, setPitch);
+ fgTie("/orientation/roll", getRoll, setRoll);
+
+ // Engine
+ fgTie("/engines/engine0/rpm", getRPM);
+ fgTie("/engines/engine0/egt", getEGT);
+ fgTie("/engines/engine0/cht", getCHT);
+ fgTie("/engines/engine0/mp", getMP);
+
+ // Velocities
+ fgTie("/velocities/airspeed", getAirspeed, setAirspeed);
+ fgTie("/velocities/side-slip", getSideSlip);
+ fgTie("/velocities/vertical-speed", getVerticalSpeed);
+ fgTie("/velocities/speed-north", getSpeedNorth);
+ fgTie("/velocities/speed-east", getSpeedEast);
+ fgTie("/velocities/speed-down", getSpeedDown);
+
+ // Controls
+#if 0
+ fgTie("/controls/throttle", getThrottle, setThrottle);
+ fgTie("/controls/mixture", getMixture, setMixture);
+ fgTie("/controls/propellor-pitch", getPropAdvance, setPropAdvance);
+ fgTie("/controls/flaps", getFlaps, setFlaps);
+ fgTie("/controls/aileron", getAileron, setAileron);
+ fgTie("/controls/rudder", getRudder, setRudder);
+ fgTie("/controls/elevator", getElevator, setElevator);
+ fgTie("/controls/elevator-trim", getElevatorTrim, setElevatorTrim);
+ fgTie("/controls/brakes/all", getBrakes, setBrakes);
+ fgTie("/controls/brakes/left", getLeftBrake, setLeftBrake);
+ fgTie("/controls/brakes/right", getRightBrake, setRightBrake);
+ fgTie("/controls/brakes/center", getRightBrake, setCenterBrake);
+#endif
+
+ // Autopilot
+ fgTie("/autopilot/locks/altitude", getAPAltitudeLock, setAPAltitudeLock);
+ fgTie("/autopilot/settings/altitude", getAPAltitude, setAPAltitude);
+ fgTie("/autopilot/locks/heading", getAPHeadingLock, setAPHeadingLock);
+ fgTie("/autopilot/settings/heading", getAPHeading, setAPHeading);
+ fgTie("/autopilot/settings/heading-magnetic",
+ getAPHeadingMag, setAPHeadingMag);
+ fgTie("/autopilot/locks/nav1", getAPNAV1Lock, setAPNAV1Lock);
+
+ // Radio navigation
+ fgTie("/radios/nav1/frequencies/selected", getNAV1Freq, setNAV1Freq);
+ fgTie("/radios/nav1/frequencies/standby", getNAV1AltFreq, setNAV1AltFreq);
+ fgTie("/radios/nav1/radials/actual", getNAV1Radial);
+ fgTie("/radios/nav1/radials/selected",
+ getNAV1SelRadial, setNAV1SelRadial);
+ fgTie("/radios/nav1/dme/distance", getNAV1DistDME);
+ fgTie("/radios/nav1/to-flag", getNAV1TO);
+ fgTie("/radios/nav1/from-flag", getNAV1FROM);
+ fgTie("/radios/nav1/in-range", getNAV1InRange);
+ fgTie("/radios/nav1/dme/in-range", getNAV1DMEInRange);
+
+ fgTie("/radios/nav2/frequencies/selected", getNAV2Freq, setNAV2Freq);
+ fgTie("/radios/nav2/frequencies/standby",
+ getNAV2AltFreq, setNAV2AltFreq);
+ fgTie("/radios/nav2/radials/actual", getNAV2Radial);
+ fgTie("/radios/nav2/radials/selected",
+ getNAV2SelRadial, setNAV2SelRadial);
+ fgTie("/radios/nav2/dme/distance", getNAV2DistDME);
+ fgTie("/radios/nav2/to-flag", getNAV2TO);
+ fgTie("/radios/nav2/from-flag", getNAV2FROM);
+ fgTie("/radios/nav2/in-range", getNAV2InRange);
+ fgTie("/radios/nav2/dme/in-range", getNAV2DMEInRange);
+
+ fgTie("/radios/adf/frequencies/selected", getADFFreq, setADFFreq);
+ fgTie("/radios/adf/frequencies/standby", getADFAltFreq, setADFAltFreq);
+ fgTie("/radios/adf/rotation", getADFRotation, setADFRotation);
+
+ // Weather
+ fgTie("/environment/visibility", getVisibility, setVisibility);
+ fgTie("/environment/wind-north", getWindNorth, setWindNorth);
+ fgTie("/environment/wind-east", getWindEast, setWindEast);
+ fgTie("/environment/wind-down", getWindDown, setWindDown);
+
+ // View
+ fgTie("/sim/view/axes/long", (double(*)())0, setViewAxisLong);
+ fgTie("/sim/view/axes/lat", (double(*)())0, setViewAxisLat);
+
+ _altitude_countdown = 0;
+ _needReinit = false;
+
+ FG_LOG(FG_GENERAL, FG_INFO, "Ending BFI init");
+}
+
+
+/**
+ * Reinitialize FGFS if required.
+ *
+ * Some changes (especially those in aircraft position) require that
+ * FGFS be reinitialized afterwards. Rather than reinitialize after
+ * every change, the setter methods simply set a flag so that there
+ * can be a single reinit at the end of the frame.
+ */
+void
+FGBFI::update ()
+{
+ _check_altitude();
+ _check_lighting();
+ _set_view_from_axes();
+ if (_needReinit) {
+ reinit();
+ }