X-Git-Url: https://git.mxchange.org/?a=blobdiff_plain;f=src%2FMain%2Fbfi.cxx;h=531250958fe358ff716784cd3cf6cce5464d359b;hb=2cd7473384ec231e2a013b280e83919b98ed2a15;hp=daef36e0a67c765b1f21464fa134586ebd6f0f71;hpb=84c64c8cc3311e5d266243b0a51b6020b73f411f;p=flightgear.git

diff --git a/src/Main/bfi.cxx b/src/Main/bfi.cxx
index daef36e0a..531250958 100644
--- a/src/Main/bfi.cxx
+++ b/src/Main/bfi.cxx
@@ -4,6 +4,8 @@
 //
 // Copyright (C) 2000  David Megginson - david@megginson.com
 //
+// THIS CLASS IS DEPRECATED; USE THE PROPERTY MANAGER INSTEAD.
+//
 // This program is free software; you can redistribute it and/or
 // modify it under the terms of the GNU General Public License as
 // published by the Free Software Foundation; either version 2 of the
@@ -20,43 +22,38 @@
 //
 // $Id$
 
-
-#ifdef HAVE_CONFIG_H
-#  include <config.h>
-#endif
-
-#if defined( FG_HAVE_NATIVE_SGI_COMPILERS )
-#  include <iostream.h>
-#else
-#  include <iostream>
-#endif
+#include "fgfs.hxx"
 
 #include <simgear/constants.h>
-#include <simgear/math/fg_types.hxx>
+#include <simgear/debug/logstream.hxx>
+#include <simgear/ephemeris/ephemeris.hxx>
+#include <simgear/math/sg_types.hxx>
+#include <simgear/misc/props.hxx>
+#include <simgear/timing/sg_time.hxx>
 
 #include <Aircraft/aircraft.hxx>
+#include <FDM/UIUCModel/uiuc_aircraftdir.h>
 #include <Controls/controls.hxx>
-#include <Autopilot/autopilot.hxx>
-#include <Time/fg_time.hxx>
+#include <Autopilot/newauto.hxx>
+#include <Scenery/scenery.hxx>
 #include <Time/light.hxx>
+#include <Time/event.hxx>
+#include <Time/sunpos.hxx>
+#include <Time/tmp.hxx>
+#include <Cockpit/radiostack.hxx>
+#include <Cockpit/panel.hxx>
 #ifndef FG_OLD_WEATHER
 #  include <WeatherCM/FGLocalWeatherDatabase.h>
 #else
 #  include <Weather/weather.hxx>
 #endif
 
-#include "options.hxx"
-#include "save.hxx"
+#include "globals.hxx"
 #include "fg_init.hxx"
+#include "fg_props.hxx"
 
 FG_USING_NAMESPACE(std);
 
-				// FIXME: these are not part of the
-				// published interface!!!
-extern fgAPDataPtr APDataGlobal;
-extern void fgAPAltitudeSet (double new_altitude);
-extern void fgAPHeadingSet (double new_heading);
-
 
 #include "bfi.hxx"
 
@@ -66,182 +63,284 @@ extern void fgAPHeadingSet (double new_heading);
 // Static variables.
 ////////////////////////////////////////////////////////////////////////
 
-bool FGBFI::_needReinit = false;
-
-
-
-////////////////////////////////////////////////////////////////////////
-// Local functions
-////////////////////////////////////////////////////////////////////////
-
+				// Yech -- not thread-safe, etc. etc.
+static bool _needReinit = false;
+static string _temp;
 
-/**
- * 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 ()
+static inline void needReinit ()
 {
-  if (_needReinit) {
-    reinit();
-  }
+  _needReinit = true;
 }
 
 
 /**
  * Reinitialize FGFS to use the new BFI settings.
  */
-void
-FGBFI::reinit ()
+static inline void
+reinit ()
 {
 				// Save the state of everything
 				// that's going to get clobbered
 				// when we reinit the subsystems.
 
+  FG_LOG(FG_GENERAL, FG_INFO, "Starting BFI reinit");
+
 				// TODO: add more AP stuff
-  double elevator = getElevator();
-  double aileron = getAileron();
-  double rudder = getRudder();
-  double throttle = getThrottle();
-  double elevator_trim = getElevatorTrim();
-  double flaps = getFlaps();
-  double brake = getBrake();
-  bool apHeadingLock = getAPHeadingLock();
-  double apHeading = getAPHeading();
-  bool apAltitudeLock = getAPAltitudeLock();
-  double apAltitude = getAPAltitude();
-  const string &targetAirport = getTargetAirport();
-  bool gpsLock = getGPSLock();
-  double gpsLatitude = getGPSTargetLatitude();
-  double gpsLongitude = getGPSTargetLongitude();
+  bool apHeadingLock = FGBFI::getAPHeadingLock();
+  double apHeadingMag = FGBFI::getAPHeadingMag();
+  bool apAltitudeLock = FGBFI::getAPAltitudeLock();
+  double apAltitude = FGBFI::getAPAltitude();
+  bool gpsLock = FGBFI::getGPSLock();
+  // double gpsLatitude = FGBFI::getGPSTargetLatitude();
+  // double gpsLongitude = FGBFI::getGPSTargetLongitude();
 
   fgReInitSubsystems();
-  // solarSystemRebuild();
+
+				// FIXME: this is wrong.
+				// All of these are scheduled events,
+				// and it should be possible to force
+				// them all to run once.
+  fgUpdateSunPos();
+  fgUpdateMoonPos();
   cur_light_params.Update();
+  fgUpdateLocalTime();
+  fgUpdateWeatherDatabase();
+  current_radiostack->search();
 
 				// Restore all of the old states.
-  setElevator(elevator);
-  setAileron(aileron);
-  setRudder(rudder);
-  setThrottle(throttle);
-  setElevatorTrim(elevator_trim);
-  setFlaps(flaps);
-  setBrake(brake);
-  setAPHeadingLock(apHeadingLock);
-  setAPHeading(apHeading);
-  setAPAltitudeLock(apAltitudeLock);
-  setAPAltitude(apAltitude);
-  setTargetAirport(targetAirport);
-  setGPSLock(gpsLock);
-  setGPSTargetLatitude(gpsLatitude);
-  setGPSTargetLongitude(gpsLongitude);
+  FGBFI::setAPHeadingLock(apHeadingLock);
+  FGBFI::setAPHeadingMag(apHeadingMag);
+  FGBFI::setAPAltitudeLock(apAltitudeLock);
+  FGBFI::setAPAltitude(apAltitude);
+  FGBFI::setGPSLock(gpsLock);
 
   _needReinit = false;
+
+  FG_LOG(FG_GENERAL, FG_INFO, "Ending BFI reinit");
 }
 
+// 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
+
 
 
 ////////////////////////////////////////////////////////////////////////
-// Simulation.
+// Local functions
 ////////////////////////////////////////////////////////////////////////
 
-
 /**
- * Return the flight model as an integer.
+ * Initialize the BFI by binding its functions to properties.
  *
- * TODO: use a string instead.
+ * TODO: perhaps these should migrate into the individual modules
+ * (i.e. they should register themselves).
  */
-int
-FGBFI::getFlightModel ()
+void
+FGBFI::init ()
 {
-  return current_options.get_flight_model();
+  FG_LOG(FG_GENERAL, FG_INFO, "Starting BFI init");
+
+				// Simulation
+  fgTie("/sim/aircraft-dir", getAircraftDir, setAircraftDir);
+  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);
+
+				// 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);
+
+				// 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);
+
+  _needReinit = false;
+
+  FG_LOG(FG_GENERAL, FG_INFO, "Ending BFI init");
 }
 
 
 /**
- * Set the flight model as an integer.
+ * Reinitialize FGFS if required.
  *
- * TODO: use a string instead.
+ * 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::setFlightModel (int model)
+FGBFI::update ()
 {
-  current_options.set_flight_model(model);
-  needReinit();
+  _set_view_from_axes();
+  if (_needReinit) {
+    reinit();
+  }
 }
 
 
+
+////////////////////////////////////////////////////////////////////////
+// Simulation.
+////////////////////////////////////////////////////////////////////////
+
+
 /**
- * Return the current Zulu time.
+ * Return the current aircraft directory (UIUC) as a string.
  */
-time_t
-FGBFI::getTimeGMT ()
+string 
+FGBFI::getAircraftDir ()
 {
-				// FIXME: inefficient
-  return mktime(FGTime::cur_time_params->getGmt());
+  return aircraft_dir;
 }
 
 
 /**
- * Set the current Zulu time.
+ * Set the current aircraft directory (UIUC).
  */
 void
-FGBFI::setTimeGMT (time_t time)
+FGBFI::setAircraftDir (string dir)
 {
-				// FIXME: need to update lighting
-				// and solar system
-  current_options.set_time_offset(time);
-  current_options.set_time_offset_type(fgOPTIONS::FG_TIME_GMT_ABSOLUTE);
-  FGTime::cur_time_params->init( cur_fdm_state->get_Longitude(),
-				 cur_fdm_state->get_Latitude() );
-  FGTime::cur_time_params->update( cur_fdm_state->get_Longitude() );
-  needReinit();
+  if (getAircraftDir() != dir) {
+    aircraft_dir = dir;
+    needReinit();
+  }
 }
 
 
 /**
- * Return true if the HUD is visible.
+ * Return the current Zulu time.
  */
-bool
-FGBFI::getHUDVisible ()
+string 
+FGBFI::getDateString ()
 {
-  return current_options.get_hud_status();
+  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;
 }
 
 
 /**
- * Ensure that the HUD is visible or hidden.
+ * Set the current Zulu time.
  */
 void
-FGBFI::setHUDVisible (bool visible)
+FGBFI::setDateString (string date_string)
+// FGBFI::setTimeGMT (time_t time)
 {
-  current_options.set_hud_status(visible);
-}
-
+  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) {
+    FG_LOG(FG_INPUT, FG_ALERT, "Date/time string " << date_string
+	   << " not in YYYY-MM-DDTHH:MM:SS format; skipped");
+    return;
+  }
 
-/**
- * Return true if the 2D panel is visible.
- */
-bool
-FGBFI::getPanelVisible ()
-{
-  return current_options.get_panel_status();
+				// 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();
+  double alt = current_aircraft.fdm_state->get_Altitude() * FEET_TO_METER;
+  globals->set_warp(warp);
+  st->update(lon, lat, warp);
+  fgUpdateSkyAndLightingParams();
 }
 
 
 /**
- * Ensure that the 2D panel is visible or hidden.
+ * Return the GMT as a string.
  */
-void
-FGBFI::setPanelVisible (bool visible)
+string 
+FGBFI::getGMTString ()
 {
-  if (current_options.get_panel_status() != visible) {
-    current_options.toggle_panel();
-  }
+  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;
 }
 
 
@@ -267,8 +366,7 @@ FGBFI::getLatitude ()
 void
 FGBFI::setLatitude (double latitude)
 {
-  current_options.set_lat(latitude);
-  needReinit();
+  current_aircraft.fdm_state->set_Latitude(latitude * DEG_TO_RAD);
 }
 
 
@@ -288,8 +386,7 @@ FGBFI::getLongitude ()
 void
 FGBFI::setLongitude (double longitude)
 {
-  current_options.set_lon(longitude);
-  needReinit();
+  current_aircraft.fdm_state->set_Longitude(longitude * DEG_TO_RAD);
 }
 
 
@@ -303,14 +400,25 @@ FGBFI::getAltitude ()
 }
 
 
+
+/**
+ * Return the current altitude in above the terrain.
+ */
+double
+FGBFI::getAGL ()
+{
+  return current_aircraft.fdm_state->get_Altitude()
+	 - (scenery.cur_elev * METER_TO_FEET);
+}
+
+
 /**
  * Set the current altitude in feet.
  */
 void
 FGBFI::setAltitude (double altitude)
 {
-  current_options.set_altitude(altitude * FEET_TO_METER);
-  needReinit();
+  current_aircraft.fdm_state->set_Altitude(altitude);
 }
 
 
@@ -330,14 +438,25 @@ FGBFI::getHeading ()
 }
 
 
+/**
+ * Return the current heading in degrees.
+ */
+double
+FGBFI::getHeadingMag ()
+{
+  return current_aircraft.fdm_state->get_Psi() * RAD_TO_DEG - getMagVar();
+}
+
+
 /**
  * Set the current heading in degrees.
  */
 void
 FGBFI::setHeading (double heading)
 {
-  current_options.set_heading(heading);
-  needReinit();
+  FGInterface * fdm = current_aircraft.fdm_state;
+  fdm->set_Euler_Angles(fdm->get_Phi(), fdm->get_Theta(),
+			heading * DEG_TO_RAD);
 }
 
 
@@ -357,9 +476,8 @@ FGBFI::getPitch ()
 void
 FGBFI::setPitch (double pitch)
 {
-
-  current_options.set_pitch(pitch);
-  needReinit();
+  FGInterface * fdm = current_aircraft.fdm_state;
+  fdm->set_Euler_Angles(fdm->get_Phi(), pitch * DEG_TO_RAD, fdm->get_Psi());
 }
 
 
@@ -379,8 +497,78 @@ FGBFI::getRoll ()
 void
 FGBFI::setRoll (double roll)
 {
-  current_options.set_roll(roll);
-  needReinit();
+  FGInterface * fdm = current_aircraft.fdm_state;
+  fdm->set_Euler_Angles(roll * DEG_TO_RAD, fdm->get_Theta(), fdm->get_Psi());
+}
+
+
+/**
+ * Return the current engine0 rpm
+ */
+double
+FGBFI::getRPM ()
+{
+  if ( current_aircraft.fdm_state->get_engine(0) != NULL ) {
+      return current_aircraft.fdm_state->get_engine(0)->get_RPM();
+  } else {
+      return 0.0;
+  }
+}
+
+
+/**
+ * Set the current engine0 rpm
+ */
+void
+FGBFI::setRPM (double rpm)
+{
+    if ( current_aircraft.fdm_state->get_engine(0) != NULL ) {
+	if (getRPM() != rpm) {
+	    current_aircraft.fdm_state->get_engine(0)->set_RPM( rpm );
+	}
+    }
+}
+
+
+/**
+ * Return the current engine0 EGT.
+ */
+double
+FGBFI::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.
+ */
+double
+FGBFI::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 CHT.
+ */
+double
+FGBFI::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;
+  }
 }
 
 
@@ -401,6 +589,16 @@ FGBFI::getAirspeed ()
 }
 
 
+/**
+ * Set the calibrated airspeed in knots.
+ */
+void
+FGBFI::setAirspeed (double speed)
+{
+  current_aircraft.fdm_state->set_V_calibrated_kts(speed);
+}
+
+
 /**
  * Return the current sideslip (FIXME: units unknown).
  */
@@ -412,7 +610,7 @@ FGBFI::getSideSlip ()
 
 
 /**
- * Return the current climb rate in feet/second (FIXME: verify).
+ * Return the current climb rate in feet/minute
  */
 double
 FGBFI::getVerticalSpeed ()
@@ -432,15 +630,15 @@ FGBFI::getSpeedNorth ()
 }
 
 
-/**
- * Set the current north velocity (units??).
- */
-void
-FGBFI::setSpeedNorth (double speed)
-{
-  current_options.set_uBody(speed);
-  needReinit();
-}
+// /**
+//  * Set the current north velocity (units??).
+//  */
+// void
+// FGBFI::setSpeedNorth (double speed)
+// {
+//   FGInterface * fdm = current_aircraft.fdm_state;
+// //   fdm->set_Velocities_Local(speed, fdm->get_V_east(), fdm->get_V_down());
+// }
 
 
 /**
@@ -453,15 +651,15 @@ FGBFI::getSpeedEast ()
 }
 
 
-/**
- * Set the current east velocity (units??).
- */
-void
-FGBFI::setSpeedEast (double speed)
-{
-  current_options.set_vBody(speed);
-  needReinit();
-}
+// /**
+//  * Set the current east velocity (units??).
+//  */
+// void
+// FGBFI::setSpeedEast (double speed)
+// {
+//   FGInterface * fdm = current_aircraft.fdm_state;
+// //   fdm->set_Velocities_Local(fdm->get_V_north(), speed, fdm->get_V_down());
+// }
 
 
 /**
@@ -474,15 +672,15 @@ FGBFI::getSpeedDown ()
 }
 
 
-/**
- * Set the current down velocity (units??).
- */
-void
-FGBFI::setSpeedDown (double speed)
-{
-  current_options.set_wBody(speed);
-  needReinit();
-}
+// /**
+//  * Set the current down velocity (units??).
+//  */
+// void
+// FGBFI::setSpeedDown (double speed)
+// {
+//   FGInterface * fdm = current_aircraft.fdm_state;
+// //   fdm->set_Velocities_Local(fdm->get_V_north(), fdm->get_V_east(), speed);
+// }
 
 
 
@@ -490,6 +688,7 @@ FGBFI::setSpeedDown (double speed)
 // Controls
 ////////////////////////////////////////////////////////////////////////
 
+#if 0
 
 /**
  * Get the throttle setting, from 0.0 (none) to 1.0 (full).
@@ -497,7 +696,7 @@ FGBFI::setSpeedDown (double speed)
 double
 FGBFI::getThrottle ()
 {
-				// FIXME: add throttle selector
+				// FIXME: add engine selector
   return controls.get_throttle(0);
 }
 
@@ -508,12 +707,55 @@ FGBFI::getThrottle ()
 void
 FGBFI::setThrottle (double throttle)
 {
-				// FIXME: allow throttle selection
-				// FIXME: clamp?
+				// FIXME: allow engine selection
   controls.set_throttle(0, throttle);
 }
 
 
+/**
+ * Get the fuel mixture setting, from 0.0 (none) to 1.0 (full).
+ */
+double
+FGBFI::getMixture ()
+{
+				// FIXME: add engine selector
+  return controls.get_mixture(0);
+}
+
+
+/**
+ * Set the fuel mixture, from 0.0 (none) to 1.0 (full).
+ */
+void
+FGBFI::setMixture (double mixture)
+{
+				// FIXME: allow engine selection
+  controls.set_mixture(0, mixture);
+}
+
+
+/**
+ * Get the propellor pitch setting, from 0.0 (none) to 1.0 (full).
+ */
+double
+FGBFI::getPropAdvance ()
+{
+				// FIXME: add engine selector
+  return controls.get_prop_advance(0);
+}
+
+
+/**
+ * Set the propellor pitch, from 0.0 (none) to 1.0 (full).
+ */
+void
+FGBFI::setPropAdvance (double pitch)
+{
+				// FIXME: allow engine selection
+  controls.set_prop_advance(0, pitch);
+}
+
+
 /**
  * Get the flaps setting, from 0.0 (none) to 1.0 (full).
  */
@@ -620,28 +862,92 @@ FGBFI::setElevatorTrim (double trim)
 
 
 /**
- * Get the brake setting, from 0.0 (none) to 1.0 (full).
+ * Get the highest brake setting, from 0.0 (none) to 1.0 (full).
  */
 double
-FGBFI::getBrake ()
+FGBFI::getBrakes ()
+{
+  double b1 = getCenterBrake();
+  double b2 = getLeftBrake();
+  double b3 = getRightBrake();
+  return (b1 > b2 ? (b1 > b3 ? b1 : b3) : (b2 > b3 ? b2 : b3));
+}
+
+
+/**
+ * Set all brakes, from 0.0 (none) to 1.0 (full).
+ */
+void
+FGBFI::setBrakes (double brake)
+{
+  setCenterBrake(brake);
+  setLeftBrake(brake);
+  setRightBrake(brake);
+}
+
+
+/**
+ * Get the center brake, from 0.0 (none) to 1.0 (full).
+ */
+double
+FGBFI::getCenterBrake ()
+{
+  return controls.get_brake(2);
+}
+
+
+/**
+ * Set the center brake, from 0.0 (none) to 1.0 (full).
+ */
+void
+FGBFI::setCenterBrake (double brake)
+{
+  controls.set_brake(2, brake);
+}
+
+
+/**
+ * Get the left brake, from 0.0 (none) to 1.0 (full).
+ */
+double
+FGBFI::getLeftBrake ()
 {
-				// FIXME: add brake selector
   return controls.get_brake(0);
 }
 
 
 /**
- * Set the brake, from 0.0 (none) to 1.0 (full).
+ * Set the left brake, from 0.0 (none) to 1.0 (full).
  */
 void
-FGBFI::setBrake (double brake)
+FGBFI::setLeftBrake (double brake)
 {
-				// FIXME: clamp?
-				// FIXME: allow brake selection
   controls.set_brake(0, brake);
 }
 
 
+/**
+ * Get the right brake, from 0.0 (none) to 1.0 (full).
+ */
+double
+FGBFI::getRightBrake ()
+{
+  return controls.get_brake(1);
+}
+
+
+/**
+ * Set the right brake, from 0.0 (none) to 1.0 (full).
+ */
+void
+FGBFI::setRightBrake (double brake)
+{
+  controls.set_brake(1, brake);
+}
+
+
+#endif
+
 
 ////////////////////////////////////////////////////////////////////////
 // Autopilot
@@ -654,7 +960,7 @@ FGBFI::setBrake (double brake)
 bool
 FGBFI::getAPAltitudeLock ()
 {
-  return fgAPAltitudeEnabled();
+    return current_autopilot->get_AltitudeEnabled();
 }
 
 
@@ -664,7 +970,8 @@ FGBFI::getAPAltitudeLock ()
 void
 FGBFI::setAPAltitudeLock (bool lock)
 {
-  APDataGlobal->altitude_hold = lock;
+  current_autopilot->set_AltitudeMode(FGAutopilot::FG_ALTITUDE_LOCK);
+  current_autopilot->set_AltitudeEnabled(lock);
 }
 
 
@@ -674,7 +981,7 @@ FGBFI::setAPAltitudeLock (bool lock)
 double
 FGBFI::getAPAltitude ()
 {
-  return fgAPget_TargetAltitude() * METER_TO_FEET;
+  return current_autopilot->get_TargetAltitude() * METER_TO_FEET;
 }
 
 
@@ -684,7 +991,7 @@ FGBFI::getAPAltitude ()
 void
 FGBFI::setAPAltitude (double altitude)
 {
-  fgAPAltitudeSet(altitude);
+    current_autopilot->set_TargetAltitude( altitude );
 }
 
 
@@ -694,7 +1001,9 @@ FGBFI::setAPAltitude (double altitude)
 bool
 FGBFI::getAPHeadingLock ()
 {
-  return fgAPHeadingEnabled();
+    return
+      (current_autopilot->get_HeadingEnabled() &&
+       current_autopilot->get_HeadingMode() == FGAutopilot::FG_HEADING_LOCK);
 }
 
 
@@ -704,7 +1013,19 @@ FGBFI::getAPHeadingLock ()
 void
 FGBFI::setAPHeadingLock (bool lock)
 {
-  APDataGlobal->heading_hold = lock;
+  if (lock) {
+				// We need to do this so that
+				// it's possible to lock onto a
+				// heading other than the current
+				// heading.
+    double heading = getAPHeadingMag();
+    current_autopilot->set_HeadingMode(FGAutopilot::FG_HEADING_LOCK);
+    current_autopilot->set_HeadingEnabled(true);
+    setAPHeadingMag(heading);
+  } else if (current_autopilot->get_HeadingMode() ==
+	     FGAutopilot::FG_HEADING_LOCK) {
+    current_autopilot->set_HeadingEnabled(false);
+  }
 }
 
 
@@ -714,7 +1035,7 @@ FGBFI::setAPHeadingLock (bool lock)
 double
 FGBFI::getAPHeading ()
 {
-  return fgAPget_TargetHeading();
+  return current_autopilot->get_TargetHeading();
 }
 
 
@@ -724,73 +1045,99 @@ FGBFI::getAPHeading ()
 void
 FGBFI::setAPHeading (double heading)
 {
-  fgAPHeadingSet(heading);
+  current_autopilot->set_TargetHeading( heading );
 }
 
 
-
-////////////////////////////////////////////////////////////////////////
-// GPS
-////////////////////////////////////////////////////////////////////////
-
-
 /**
- * Get the autopilot GPS lock (true=on).
+ * Get the autopilot target heading in degrees.
  */
-bool
-FGBFI::getGPSLock ()
+double
+FGBFI::getAPHeadingMag ()
 {
-  return fgAPWayPointEnabled();
+  return current_autopilot->get_TargetHeading() - getMagVar();
 }
 
 
 /**
- * Set the autopilot GPS lock (true=on).
+ * Set the autopilot target heading in degrees.
  */
 void
-FGBFI::setGPSLock (bool lock)
+FGBFI::setAPHeadingMag (double heading)
 {
-  APDataGlobal->waypoint_hold = lock;
+  current_autopilot->set_TargetHeading( heading + getMagVar() );
 }
 
 
 /**
- * Get the GPS target airport code.
+ * Return true if the autopilot is locked to NAV1.
  */
-const string
-FGBFI::getTargetAirport ()
+bool
+FGBFI::getAPNAV1Lock ()
 {
-  return current_options.get_airport_id();
+  return
+    (current_autopilot->get_HeadingEnabled() &&
+     current_autopilot->get_HeadingMode() == FGAutopilot::FG_HEADING_NAV1);
 }
 
 
 /**
- * Set the GPS target airport code.
+ * Set the autopilot NAV1 lock.
  */
 void
-FGBFI::setTargetAirport (const string &airportId)
+FGBFI::setAPNAV1Lock (bool lock)
 {
-  current_options.set_airport_id(airportId);
+  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);
+  }
 }
 
 
+
+////////////////////////////////////////////////////////////////////////
+// GPS
+////////////////////////////////////////////////////////////////////////
+
+
 /**
- * Get the GPS target latitude in degrees (negative for south).
+ * Get the autopilot GPS lock (true=on).
  */
-double
-FGBFI::getGPSTargetLatitude ()
+bool
+FGBFI::getGPSLock ()
 {
-  return fgAPget_TargetLatitude();
+  return (current_autopilot->get_HeadingEnabled() &&
+	  (current_autopilot->get_HeadingMode() ==
+	   FGAutopilot::FG_HEADING_WAYPOINT ));
 }
 
 
 /**
- * Set the GPS target latitude in degrees (negative for south).
+ * Set the autopilot GPS lock (true=on).
  */
 void
-FGBFI::setGPSTargetLatitude (double latitude)
+FGBFI::setGPSLock (bool lock)
 {
-  APDataGlobal->TargetLatitude = latitude;
+  if (lock) {
+    current_autopilot->set_HeadingMode(FGAutopilot::FG_HEADING_WAYPOINT);
+    current_autopilot->set_HeadingEnabled(true);
+  } else if (current_autopilot->get_HeadingMode() ==
+	     FGAutopilot::FG_HEADING_WAYPOINT) {
+    current_autopilot->set_HeadingEnabled(false);
+  }
+}
+
+
+/**
+ * Get the GPS target latitude in degrees (negative for south).
+ */
+double
+FGBFI::getGPSTargetLatitude ()
+{
+    return current_autopilot->get_TargetLatitude();
 }
 
 
@@ -800,18 +1147,19 @@ FGBFI::setGPSTargetLatitude (double latitude)
 double
 FGBFI::getGPSTargetLongitude ()
 {
-  return fgAPget_TargetLongitude();
+  return current_autopilot->get_TargetLongitude();
 }
 
-
+#if 0
 /**
  * Set the GPS target longitude in degrees (negative for west).
  */
 void
 FGBFI::setGPSTargetLongitude (double longitude)
 {
-  APDataGlobal->TargetLongitude = longitude;
+  current_autopilot->set_TargetLongitude( longitude );
 }
+#endif
 
 
 
@@ -821,7 +1169,7 @@ FGBFI::setGPSTargetLongitude (double longitude)
 
 
 /**
- * Get the current visible (units??).
+ * Get the current visibility (meters).
  */
 double
 FGBFI::getVisibility ()
@@ -835,7 +1183,7 @@ FGBFI::getVisibility ()
 
 
 /**
- * Set the current visibility (units??).
+ * Set the current visibility (meters).
  */
 void
 FGBFI::setVisibility (double visibility)
@@ -848,4 +1196,114 @@ FGBFI::setVisibility (double visibility)
 }
 
 
+/**
+ * Get the current wind north velocity (feet/second).
+ */
+double
+FGBFI::getWindNorth ()
+{
+  return current_aircraft.fdm_state->get_V_north_airmass();
+}
+
+
+/**
+ * Set the current wind north velocity (feet/second).
+ */
+void
+FGBFI::setWindNorth (double speed)
+{
+  current_aircraft.fdm_state->set_Velocities_Local_Airmass(speed,
+							   getWindEast(),
+							   getWindDown());
+}
+
+
+/**
+ * Get the current wind east velocity (feet/second).
+ */
+double
+FGBFI::getWindEast ()
+{
+  return current_aircraft.fdm_state->get_V_east_airmass();
+}
+
+
+/**
+ * Set the current wind east velocity (feet/second).
+ */
+void
+FGBFI::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).
+ */
+double
+FGBFI::getWindDown ()
+{
+  return current_aircraft.fdm_state->get_V_down_airmass();
+}
+
+
+/**
+ * Set the current wind down velocity (feet/second).
+ */
+void
+FGBFI::setWindDown (double speed)
+{
+  current_aircraft.fdm_state->set_Velocities_Local_Airmass(getWindNorth(),
+							   getWindEast(),
+							   speed);
+}
+
+
+
+////////////////////////////////////////////////////////////////////////
+// View.
+////////////////////////////////////////////////////////////////////////
+
+void
+FGBFI::setViewAxisLong (double axis)
+{
+  axisLong = axis;
+}
+
+void
+FGBFI::setViewAxisLat (double axis)
+{
+  axisLat = axis;
+}
+
+
+////////////////////////////////////////////////////////////////////////
+// Time
+////////////////////////////////////////////////////////////////////////
+
+/**
+ * Return the magnetic variation
+ */
+double
+FGBFI::getMagVar ()
+{
+  return globals->get_mag()->get_magvar() * RAD_TO_DEG;
+}
+
+
+/**
+ * Return the magnetic variation
+ */
+double
+FGBFI::getMagDip ()
+{
+  return globals->get_mag()->get_magdip() * RAD_TO_DEG;
+}
+
+
 // end of bfi.cxx
+