]> git.mxchange.org Git - flightgear.git/blobdiff - src/AIModel/AIBase.cxx
Merge branch 'durk/traffic'
[flightgear.git] / src / AIModel / AIBase.cxx
index da109c1c7ae8fd25753ec87f26f54168ea5c6ca2..de107a682bfc8ae356784e42c119304aa80098b3 100644 (file)
@@ -3,6 +3,8 @@
 // David Luff's FGAIEntity class.
 // - davidculp2@comcast.net
 //
+// With additions by Mathias Froehlich & Vivian Meazza 2004 -2007
+//
 // 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
 
 #include <simgear/compiler.h>
 
-#include STL_STRING
+#include <string>
 
 #include <osg/ref_ptr>
 #include <osg/Node>
+#include <osgDB/FileUtils>
 
-#include <simgear/math/point3d.hxx>
-#include <simgear/math/polar3d.hxx>
-#include <simgear/math/sg_geodesy.hxx>
+#include <simgear/math/SGMath.hxx>
 #include <simgear/misc/sg_path.hxx>
-#include <simgear/scene/model/location.hxx>
-#include <simgear/scene/model/model.hxx>
+#include <simgear/scene/model/modellib.hxx>
+#include <simgear/scene/util/SGNodeMasks.hxx>
 #include <simgear/debug/logstream.hxx>
 #include <simgear/props/props.hxx>
 
 #include <Main/globals.hxx>
 #include <Scenery/scenery.hxx>
-
+#include <Scripting/NasalSys.hxx>
 
 #include "AIBase.hxx"
 #include "AIManager.hxx"
 
-
+const char *default_model = "Models/Geometry/glider.ac";
 const double FGAIBase::e = 2.71828183;
 const double FGAIBase::lbs_to_slugs = 0.031080950172;   //conversion factor
 
+using namespace simgear;
 
 FGAIBase::FGAIBase(object_type ot) :
     props( NULL ),
     model_removed( fgGetNode("/ai/models/model-removed", true) ),
     manager( NULL ),
     fp( NULL ),
+
+    _impact_lat(0),
+    _impact_lon(0),
+    _impact_elev(0),
+    _impact_hdg(0),
+    _impact_pitch(0),
+    _impact_roll(0),
+    _impact_speed(0),
+
     _refID( _newAIModelID() ),
-    _otype(ot)
+    _otype(ot),
+    _initialized(false)
 {
     tgt_heading = hdg = tgt_altitude_ft = tgt_speed = 0.0;
     tgt_roll = roll = tgt_pitch = tgt_yaw = tgt_vs = vs = pitch = 0.0;
     bearing = elevation = range = rdot = 0.0;
     x_shift = y_shift = rotation = 0.0;
     in_range = false;
-    invisible = true;
+    invisible = false;
     no_roll = true;
     life = 900;
     delete_me = false;
+    _impact_reported = false;
+    _collision_reported = false;
+    _subID = 0;
+
+    _x_offset = 0;
+    _y_offset = 0;
+    _z_offset = 0;
+
+    _pitch_offset = 0;
+    _roll_offset = 0;
+    _yaw_offset = 0;
+
+    userpos = SGGeod::fromDeg(0, 0);
+
+    pos = SGGeod::fromDeg(0, 0);
+    speed = 0;
+    altitude_ft = 0;
+    speed_north_deg_sec = 0;
+    speed_east_deg_sec = 0;
+    turn_radius_ft = 0;
+
+    ft_per_deg_lon = 0;
+    ft_per_deg_lat = 0;
+
+    horiz_offset = 0;
+    vert_offset = 0;
+    ht_diff = 0;
+
+    serviceable = false;
+
+    fp = 0;
+
+    rho = 1;
+    T = 280;
+    p = 1e5;
+    a = 340;
+    Mach = 0;
 }
 
 FGAIBase::~FGAIBase() {
     // Unregister that one at the scenery manager
     if (globals->get_scenery()) {
-        globals->get_scenery()->unregister_placement_transform(aip.getTransform());
         globals->get_scenery()->get_scene_graph()->removeChild(aip.getSceneGraph());
     }
+
     if (props) {
         SGPropertyNode* parent = props->getParent();
-        if (parent) {
+
+        if (parent)
             model_removed->setStringValue(props->getPath());
-            parent->removeChild(props->getName(), props->getIndex(), false);
-        }
     }
     delete fp;
     fp = 0;
 }
 
-
 void FGAIBase::readFromScenario(SGPropertyNode* scFileNode)
 {
     if (!scFileNode)
         return;
 
-    setPath(scFileNode->getStringValue("model", "Models/Geometry/glider.ac"));
+    setPath(scFileNode->getStringValue("model",
+            fgGetString("/sim/multiplay/default-model", default_model)));
 
     setHeading(scFileNode->getDoubleValue("heading", 0.0));
     setSpeed(scFileNode->getDoubleValue("speed", 0.0));
@@ -100,11 +148,21 @@ void FGAIBase::readFromScenario(SGPropertyNode* scFileNode)
     setLongitude(scFileNode->getDoubleValue("longitude", 0.0));
     setLatitude(scFileNode->getDoubleValue("latitude", 0.0));
     setBank(scFileNode->getDoubleValue("roll", 0.0));
+
+    SGPropertyNode* submodels = scFileNode->getChild("submodels");
+
+    if (submodels) {
+        setServiceable(submodels->getBoolValue("serviceable", false));
+        setSMPath(submodels->getStringValue("path", ""));
+    }
+
 }
 
 void FGAIBase::update(double dt) {
+
     if (_otype == otStatic)
         return;
+
     if (_otype == otBallistic)
         CalculateMach();
 
@@ -113,131 +171,151 @@ void FGAIBase::update(double dt) {
 }
 
 void FGAIBase::Transform() {
+
     if (!invisible) {
-      aip.setPosition(pos);
-      if (no_roll) {
-         aip.setOrientation(0.0, pitch, hdg);
-      } else {
-         aip.setOrientation(roll, pitch, hdg);
-      }
-      aip.update();
+        aip.setVisible(true);
+        aip.setPosition(pos);
+
+        if (no_roll)
+            aip.setOrientation(0.0, pitch, hdg);
+        else
+            aip.setOrientation(roll, pitch, hdg);
+
+        aip.update();
+    } else {
+        aip.setVisible(false);
+        aip.update();
     }
+
 }
 
+bool FGAIBase::init(bool search_in_AI_path) {
+    osg::ref_ptr<osgDB::ReaderWriter::Options> opt=
+        new osgDB::ReaderWriter::Options(*osgDB::Registry::instance()->getOptions());
 
-bool FGAIBase::init() {
+    if(search_in_AI_path)
+    {
+        SGPath ai_path(globals->get_fg_root());
+        ai_path.append("AI");
+        opt->getDatabasePathList().push_front(ai_path.str());
+    }
 
-   if (!model_path.empty()) {
-     try {
-       model = load3DModel( globals->get_fg_root(), model_path, props,
-                            globals->get_sim_time_sec() );
-     } catch (const sg_exception &e) {
-       model = NULL;
-     }
-   }
-   if (model.get()) {
-     aip.init( model.get() );
-     aip.setVisible(true);
-     invisible = false;
-     globals->get_scenery()->get_scene_graph()->addChild(aip.getSceneGraph());
-     // Register that one at the scenery manager
-     globals->get_scenery()->register_placement_transform(aip.getTransform());
-     fgSetString("/ai/models/model-added", props->getPath());
-   } else {
-     if (!model_path.empty()) {
-       SG_LOG(SG_INPUT, SG_WARN, "AIBase: Could not load model " << model_path);
-     }
-   }
+    string f = osgDB::findDataFile(model_path, opt.get());
 
-   setDie(false);
+    if(f.empty())
+        f = fgGetString("/sim/multiplay/default-model", default_model);
 
-   return true;
-}
+    model = load3DModel(f, props);
 
+    if (model.valid() && _initialized == false) {
+        aip.init( model.get() );
+        aip.setVisible(true);
+        invisible = false;
+        globals->get_scenery()->get_scene_graph()->addChild(aip.getSceneGraph());
+        _initialized = true;
+
+    } else if (!model_path.empty()) {
+        SG_LOG(SG_INPUT, SG_WARN, "AIBase: Could not load model " << model_path);
+    }
+
+    setDie(false);
+    return true;
+}
 
-osg::Node*
-FGAIBase::load3DModel(const string& fg_root,
-                      const string &path,
-                      SGPropertyNode *prop_root,
-                      double sim_time_sec)
+void FGAIBase::initModel(osg::Node *node)
 {
-  // some more code here to check whether a model with this name has already been loaded
-  // if not load it, otherwise, get the memory pointer and do something like
-  // SetModel as in ATC/AIEntity.cxx
-  osg::Group* personality_branch = new osg::Group;
+    if (model.valid()) {
 
-  //model = manager->getModel(path);
-  //if (!(model)) {
-      model = sgLoad3DModel(fg_root,
-                            path,
-                            prop_root,
-                            sim_time_sec);
-      //        manager->setModel(path, model.get());
-      //}
-  personality_branch->addChild( model.get() );
+        fgSetString("/ai/models/model-added", props->getPath().c_str());
 
-  return personality_branch;
-  //return model;
+    } else if (!model_path.empty()) {
+        SG_LOG(SG_INPUT, SG_WARN, "AIBase: Could not load model " << model_path);
+    }
+
+    props->setStringValue("submodels/path", _path.c_str());
+    setDie(false);
+}
+
+
+osg::Node* FGAIBase::load3DModel(const string &path, SGPropertyNode *prop_root)
+{
+  model = SGModelLib::loadPagedModel(path, prop_root, new FGNasalModelData(prop_root));
+  initModel(model.get());
+  return model.get();
 }
 
 bool FGAIBase::isa( object_type otype ) {
- if ( otype == _otype )
-   return true;
- else
-   return false;
+    return otype == _otype;
 }
 
 
 void FGAIBase::bind() {
-   props->tie("id", SGRawValueMethods<FGAIBase,int>(*this,
-                                         &FGAIBase::getID));
-   props->tie("velocities/true-airspeed-kt",  SGRawValuePointer<double>(&speed));
-   props->tie("velocities/vertical-speed-fps",
-               SGRawValueMethods<FGAIBase,double>(*this,
-                                         &FGAIBase::_getVS_fps,
-                                         &FGAIBase::_setVS_fps));
-
-   props->tie("position/altitude-ft",
-               SGRawValueMethods<FGAIBase,double>(*this,
-                                         &FGAIBase::_getAltitude,
-                                         &FGAIBase::_setAltitude));
-   props->tie("position/latitude-deg",
-               SGRawValueMethods<FGAIBase,double>(*this,
-                                         &FGAIBase::_getLatitude,
-                                         &FGAIBase::_setLatitude));
-   props->tie("position/longitude-deg",
-               SGRawValueMethods<FGAIBase,double>(*this,
-                                         &FGAIBase::_getLongitude,
-                                         &FGAIBase::_setLongitude));
-
-   props->tie("orientation/pitch-deg",   SGRawValuePointer<double>(&pitch));
-   props->tie("orientation/roll-deg",    SGRawValuePointer<double>(&roll));
-   props->tie("orientation/true-heading-deg", SGRawValuePointer<double>(&hdg));
-
-   props->tie("radar/in-range", SGRawValuePointer<bool>(&in_range));
-   props->tie("radar/bearing-deg",   SGRawValuePointer<double>(&bearing));
-   props->tie("radar/elevation-deg", SGRawValuePointer<double>(&elevation));
-   props->tie("radar/range-nm", SGRawValuePointer<double>(&range));
-   props->tie("radar/h-offset", SGRawValuePointer<double>(&horiz_offset));
-   props->tie("radar/v-offset", SGRawValuePointer<double>(&vert_offset));
-   props->tie("radar/x-shift", SGRawValuePointer<double>(&x_shift));
-   props->tie("radar/y-shift", SGRawValuePointer<double>(&y_shift));
-   props->tie("radar/rotation", SGRawValuePointer<double>(&rotation));
-   props->tie("radar/ht-diff-ft", SGRawValuePointer<double>(&ht_diff));
-
-   props->tie("controls/lighting/nav-lights",
-               SGRawValueFunctions<bool>(_isNight));
-   props->setBoolValue("controls/lighting/beacon", true);
-   props->setBoolValue("controls/lighting/strobe", true);
-   props->setBoolValue("controls/glide-path", true);
-
-   props->setStringValue("controls/flight/lateral-mode", "roll");
-   props->setDoubleValue("controls/flight/target-hdg", hdg);
-   props->setDoubleValue("controls/flight/target-roll", roll);
-
-   props->setStringValue("controls/flight/longitude-mode", "alt");
-   props->setDoubleValue("controls/flight/target-alt", altitude_ft);
-   props->setDoubleValue("controls/flight/target-pitch", pitch);
+    props->tie("id", SGRawValueMethods<FGAIBase,int>(*this,
+        &FGAIBase::getID));
+    props->tie("velocities/true-airspeed-kt",  SGRawValuePointer<double>(&speed));
+    props->tie("velocities/vertical-speed-fps",
+        SGRawValueMethods<FGAIBase,double>(*this,
+        &FGAIBase::_getVS_fps,
+        &FGAIBase::_setVS_fps));
+
+    props->tie("position/altitude-ft",
+        SGRawValueMethods<FGAIBase,double>(*this,
+        &FGAIBase::_getAltitude,
+        &FGAIBase::_setAltitude));
+    props->tie("position/latitude-deg",
+        SGRawValueMethods<FGAIBase,double>(*this,
+        &FGAIBase::_getLatitude,
+        &FGAIBase::_setLatitude));
+    props->tie("position/longitude-deg",
+        SGRawValueMethods<FGAIBase,double>(*this,
+        &FGAIBase::_getLongitude,
+        &FGAIBase::_setLongitude));
+
+    props->tie("position/global-x",
+        SGRawValueMethods<FGAIBase,double>(*this,
+        &FGAIBase::_getCartPosX,
+        0));
+    props->tie("position/global-y",
+        SGRawValueMethods<FGAIBase,double>(*this,
+        &FGAIBase::_getCartPosY,
+        0));
+    props->tie("position/global-z",
+        SGRawValueMethods<FGAIBase,double>(*this,
+        &FGAIBase::_getCartPosZ,
+        0));
+    props->tie("callsign",
+        SGRawValueMethods<FGAIBase,const char*>(*this,
+        &FGAIBase::_getCallsign,
+        0));
+
+    props->tie("orientation/pitch-deg",   SGRawValuePointer<double>(&pitch));
+    props->tie("orientation/roll-deg",    SGRawValuePointer<double>(&roll));
+    props->tie("orientation/true-heading-deg", SGRawValuePointer<double>(&hdg));
+
+    props->tie("radar/in-range", SGRawValuePointer<bool>(&in_range));
+    props->tie("radar/bearing-deg",   SGRawValuePointer<double>(&bearing));
+    props->tie("radar/elevation-deg", SGRawValuePointer<double>(&elevation));
+    props->tie("radar/range-nm", SGRawValuePointer<double>(&range));
+    props->tie("radar/h-offset", SGRawValuePointer<double>(&horiz_offset));
+    props->tie("radar/v-offset", SGRawValuePointer<double>(&vert_offset));
+    props->tie("radar/x-shift", SGRawValuePointer<double>(&x_shift));
+    props->tie("radar/y-shift", SGRawValuePointer<double>(&y_shift));
+    props->tie("radar/rotation", SGRawValuePointer<double>(&rotation));
+    props->tie("radar/ht-diff-ft", SGRawValuePointer<double>(&ht_diff));
+    props->tie("subID", SGRawValuePointer<int>(&_subID));
+    props->tie("controls/lighting/nav-lights",
+        SGRawValueFunctions<bool>(_isNight));
+    props->setBoolValue("controls/lighting/beacon", true);
+    props->setBoolValue("controls/lighting/strobe", true);
+    props->setBoolValue("controls/glide-path", true);
+
+    props->setStringValue("controls/flight/lateral-mode", "roll");
+    props->setDoubleValue("controls/flight/target-hdg", hdg);
+    props->setDoubleValue("controls/flight/target-roll", roll);
+
+    props->setStringValue("controls/flight/longitude-mode", "alt");
+    props->setDoubleValue("controls/flight/target-alt", altitude_ft);
+    props->setDoubleValue("controls/flight/target-pitch", pitch);
 
    props->setDoubleValue("controls/flight/target-spd", speed);
 
@@ -251,6 +329,10 @@ void FGAIBase::unbind() {
     props->untie("position/altitude-ft");
     props->untie("position/latitude-deg");
     props->untie("position/longitude-deg");
+    props->untie("position/global-x");
+    props->untie("position/global-y");
+    props->untie("position/global-z");
+    props->untie("callsign");
 
     props->untie("orientation/pitch-deg");
     props->untie("orientation/roll-deg");
@@ -268,149 +350,207 @@ void FGAIBase::unbind() {
     props->untie("radar/ht-diff-ft");
 
     props->untie("controls/lighting/nav-lights");
+
+    props->setBoolValue("/sim/controls/radar/", true);
+
 }
 
-double FGAIBase::UpdateRadar(FGAIManager* manager)
-{
-   double radar_range_ft2 = fgGetDouble("/instrumentation/radar/range");
-   bool force_on = fgGetBool("/instrumentation/radar/debug-mode", false);
-   radar_range_ft2 *= SG_NM_TO_METER * SG_METER_TO_FEET * 1.1; // + 10%
-   radar_range_ft2 *= radar_range_ft2;
-
-   double user_latitude  = manager->get_user_latitude();
-   double user_longitude = manager->get_user_longitude();
-   double lat_range = fabs(pos.getLatitudeDeg() - user_latitude) * ft_per_deg_lat;
-   double lon_range = fabs(pos.getLongitudeDeg() - user_longitude) * ft_per_deg_lon;
-   double range_ft2 = lat_range*lat_range + lon_range*lon_range;
-
-   //
-   // Test whether the target is within radar range.
-   //
-   in_range = (range_ft2 && (range_ft2 <= radar_range_ft2));
-   if ( in_range || force_on )
-   {
-     props->setBoolValue("radar/in-range", true);
-
-     // copy values from the AIManager
-     double user_altitude  = manager->get_user_altitude();
-     double user_heading   = manager->get_user_heading();
-     double user_pitch     = manager->get_user_pitch();
-     //double user_yaw       = manager->get_user_yaw();
-     //double user_speed     = manager->get_user_speed();
-
-     // calculate range to target in feet and nautical miles
-     double range_ft = sqrt( range_ft2 );
-     range = range_ft / 6076.11549;
-
-     // calculate bearing to target
-     if (pos.getLatitudeDeg() >= user_latitude) {
-        bearing = atan2(lat_range, lon_range) * SG_RADIANS_TO_DEGREES;
-        if (pos.getLongitudeDeg() >= user_longitude) {
-           bearing = 90.0 - bearing;
-        } else {
-           bearing = 270.0 + bearing;
-        }
-     } else {
-        bearing = atan2(lon_range, lat_range) * SG_RADIANS_TO_DEGREES;
-        if (pos.getLongitudeDeg() >= user_longitude) {
-           bearing = 180.0 - bearing;
+double FGAIBase::UpdateRadar(FGAIManager* manager) {
+    bool control = fgGetBool("/sim/controls/radar", true);
+
+    if(!control) return 0;
+
+    double radar_range_ft2 = fgGetDouble("/instrumentation/radar/range");
+    bool force_on = fgGetBool("/instrumentation/radar/debug-mode", false);
+    radar_range_ft2 *= SG_NM_TO_METER * SG_METER_TO_FEET * 1.1; // + 10%
+    radar_range_ft2 *= radar_range_ft2;
+
+    double user_latitude  = manager->get_user_latitude();
+    double user_longitude = manager->get_user_longitude();
+    double lat_range = fabs(pos.getLatitudeDeg() - user_latitude) * ft_per_deg_lat;
+    double lon_range = fabs(pos.getLongitudeDeg() - user_longitude) * ft_per_deg_lon;
+    double range_ft2 = lat_range*lat_range + lon_range*lon_range;
+
+    //
+    // Test whether the target is within radar range.
+    //
+    in_range = (range_ft2 && (range_ft2 <= radar_range_ft2));
+
+    if ( in_range || force_on ) {
+        props->setBoolValue("radar/in-range", true);
+
+        // copy values from the AIManager
+        double user_altitude  = manager->get_user_altitude();
+        double user_heading   = manager->get_user_heading();
+        double user_pitch     = manager->get_user_pitch();
+        //double user_yaw       = manager->get_user_yaw();
+        //double user_speed     = manager->get_user_speed();
+
+        // calculate range to target in feet and nautical miles
+        double range_ft = sqrt( range_ft2 );
+        range = range_ft / 6076.11549;
+
+        // calculate bearing to target
+        if (pos.getLatitudeDeg() >= user_latitude) {
+            bearing = atan2(lat_range, lon_range) * SG_RADIANS_TO_DEGREES;
+            if (pos.getLongitudeDeg() >= user_longitude) {
+                bearing = 90.0 - bearing;
+            } else {
+                bearing = 270.0 + bearing;
+            }
         } else {
-           bearing = 180.0 + bearing;
+            bearing = atan2(lon_range, lat_range) * SG_RADIANS_TO_DEGREES;
+            if (pos.getLongitudeDeg() >= user_longitude) {
+                bearing = 180.0 - bearing;
+            } else {
+                bearing = 180.0 + bearing;
+            }
         }
-     }
-
-     // This is an alternate way to compute bearing and distance which
-     // agrees with the original scheme within about 0.1 degrees.
-     //
-     // Point3D start( user_longitude * SGD_DEGREES_TO_RADIANS,
-     //                user_latitude * SGD_DEGREES_TO_RADIANS, 0 );
-     // Point3D dest( pos.getLongitudeRad(), pos.getLatitudeRad(), 0 );
-     // double gc_bearing, gc_range;
-     // calc_gc_course_dist( start, dest, &gc_bearing, &gc_range );
-     // gc_range *= SG_METER_TO_NM;
-     // gc_bearing *= SGD_RADIANS_TO_DEGREES;
-     // printf("orig b = %.3f %.2f  gc b= %.3f, %.2f\n",
-     //        bearing, range, gc_bearing, gc_range);
-
-     // calculate look left/right to target, without yaw correction
-     horiz_offset = bearing - user_heading;
-     if (horiz_offset > 180.0) horiz_offset -= 360.0;
-     if (horiz_offset < -180.0) horiz_offset += 360.0;
-
-     // calculate elevation to target
-     elevation = atan2( altitude_ft - user_altitude, range_ft ) * SG_RADIANS_TO_DEGREES;
-
-     // calculate look up/down to target
-     vert_offset = elevation - user_pitch;
-
-     /* this calculation needs to be fixed, but it isn't important anyway
-     // calculate range rate
-     double recip_bearing = bearing + 180.0;
-     if (recip_bearing > 360.0) recip_bearing -= 360.0;
-     double my_horiz_offset = recip_bearing - hdg;
-     if (my_horiz_offset > 180.0) my_horiz_offset -= 360.0;
-     if (my_horiz_offset < -180.0) my_horiz_offset += 360.0;
-     rdot = (-user_speed * cos( horiz_offset * SG_DEGREES_TO_RADIANS ))
-             +(-speed * 1.686 * cos( my_horiz_offset * SG_DEGREES_TO_RADIANS ));
+
+        // This is an alternate way to compute bearing and distance which
+        // agrees with the original scheme within about 0.1 degrees.
+        //
+        // Point3D start( user_longitude * SGD_DEGREES_TO_RADIANS,
+        //                user_latitude * SGD_DEGREES_TO_RADIANS, 0 );
+        // Point3D dest( pos.getLongitudeRad(), pos.getLatitudeRad(), 0 );
+        // double gc_bearing, gc_range;
+        // calc_gc_course_dist( start, dest, &gc_bearing, &gc_range );
+        // gc_range *= SG_METER_TO_NM;
+        // gc_bearing *= SGD_RADIANS_TO_DEGREES;
+        // printf("orig b = %.3f %.2f  gc b= %.3f, %.2f\n",
+        //        bearing, range, gc_bearing, gc_range);
+
+        // calculate look left/right to target, without yaw correction
+        horiz_offset = bearing - user_heading;
+        if (horiz_offset > 180.0) horiz_offset -= 360.0;
+        if (horiz_offset < -180.0) horiz_offset += 360.0;
+
+        // calculate elevation to target
+        elevation = atan2( altitude_ft - user_altitude, range_ft ) * SG_RADIANS_TO_DEGREES;
+
+        // calculate look up/down to target
+        vert_offset = elevation - user_pitch;
+
+        /* this calculation needs to be fixed, but it isn't important anyway
+        // calculate range rate
+        double recip_bearing = bearing + 180.0;
+        if (recip_bearing > 360.0) recip_bearing -= 360.0;
+        double my_horiz_offset = recip_bearing - hdg;
+        if (my_horiz_offset > 180.0) my_horiz_offset -= 360.0;
+        if (my_horiz_offset < -180.0) my_horiz_offset += 360.0;
+        rdot = (-user_speed * cos( horiz_offset * SG_DEGREES_TO_RADIANS ))
+        +(-speed * 1.686 * cos( my_horiz_offset * SG_DEGREES_TO_RADIANS ));
+        */
+
+        // now correct look left/right for yaw
+        // horiz_offset += user_yaw; // FIXME: WHY WOULD WE WANT TO ADD IN SIDE-SLIP HERE?
+
+        // calculate values for radar display
+        y_shift = range * cos( horiz_offset * SG_DEGREES_TO_RADIANS);
+        x_shift = range * sin( horiz_offset * SG_DEGREES_TO_RADIANS);
+        rotation = hdg - user_heading;
+        if (rotation < 0.0) rotation += 360.0;
+        ht_diff = altitude_ft - user_altitude;
+
+    }
+
+    return range_ft2;
+}
+
+/*
+* Getters and Setters
 */
 
-     // now correct look left/right for yaw
-     // horiz_offset += user_yaw; // FIXME: WHY WOULD WE WANT TO ADD IN SIDE-SLIP HERE?
+SGVec3d FGAIBase::getCartPosAt(const SGVec3d& _off) const {
+    // Transform that one to the horizontal local coordinate system.
+    SGQuatd hlTrans = SGQuatd::fromLonLat(pos);
 
-     // calculate values for radar display
-     y_shift = range * cos( horiz_offset * SG_DEGREES_TO_RADIANS);
-     x_shift = range * sin( horiz_offset * SG_DEGREES_TO_RADIANS);
-     rotation = hdg - user_heading;
-     if (rotation < 0.0) rotation += 360.0;
-     ht_diff = altitude_ft - user_altitude;
+    // and postrotate the orientation of the AIModel wrt the horizontal
+    // local frame
+    hlTrans *= SGQuatd::fromYawPitchRollDeg(hdg, pitch, roll);
 
-   }
+    // The offset converted to the usual body fixed coordinate system
+    // rotated to the earth fiexed coordinates axis
+    SGVec3d off = hlTrans.backTransform(_off);
 
-   return range_ft2;
+    // Add the position offset of the AIModel to gain the earth centered position
+    SGVec3d cartPos = SGVec3d::fromGeod(pos);
+
+    return cartPos + off;
 }
 
-SGVec3d
-FGAIBase::getCartPosAt(const SGVec3d& _off) const
-{
-  // Transform that one to the horizontal local coordinate system.
-  
-  SGQuatd hlTrans = SGQuatd::fromLonLat(pos);
-  // and postrotate the orientation of the AIModel wrt the horizontal
-  // local frame
-  hlTrans *= SGQuatd::fromYawPitchRollDeg(hdg, pitch, roll);
+SGVec3d FGAIBase::getCartPos() const {
+    SGVec3d cartPos = SGVec3d::fromGeod(pos);
+    return cartPos;
+}
 
-  // The offset converted to the usual body fixed coordinate system
-  // rotated to the earth fiexed coordinates axis
-  SGVec3d off = hlTrans.backTransform(_off);
+bool FGAIBase::getGroundElevationM(const SGGeod& pos, double& elev,
+                                   const SGMaterial** material) const {
+    return globals->get_scenery()->get_elevation_m(pos, elev, material,
+                                                   model.get());
+}
 
-  // Add the position offset of the AIModel to gain the earth centered position
-  SGVec3d cartPos = SGVec3d::fromGeod(pos);
+double FGAIBase::_getCartPosX() const {
+    SGVec3d cartPos = getCartPos();
+    return cartPos.x();
+}
 
-  return cartPos + off;
+double FGAIBase::_getCartPosY() const {
+    SGVec3d cartPos = getCartPos();
+    return cartPos.y();
+}
+
+double FGAIBase::_getCartPosZ() const {
+    SGVec3d cartPos = getCartPos();
+    return cartPos.z();
 }
 
-/*
- * getters and Setters
- */
 void FGAIBase::_setLongitude( double longitude ) {
     pos.setLongitudeDeg(longitude);
 }
+
 void FGAIBase::_setLatitude ( double latitude )  {
     pos.setLatitudeDeg(latitude);
 }
 
+void FGAIBase::_setUserPos(){
+    userpos.setLatitudeDeg(manager->get_user_latitude());
+    userpos.setLongitudeDeg(manager->get_user_longitude());
+    userpos.setElevationM(manager->get_user_altitude() * SG_FEET_TO_METER);
+}
+
+void FGAIBase::_setSubID( int s ) {
+    _subID = s;
+}
+
 double FGAIBase::_getLongitude() const {
     return pos.getLongitudeDeg();
 }
-double FGAIBase::_getLatitude () const {
+
+double FGAIBase::_getLatitude() const {
     return pos.getLatitudeDeg();
 }
+
+double FGAIBase::_getElevationFt () const {
+    return pos.getElevationFt();
+}
+
 double FGAIBase::_getRdot() const {
     return rdot;
 }
+
 double FGAIBase::_getVS_fps() const {
     return vs*60.0;
 }
+
+double FGAIBase::_get_speed_east_fps() const {
+    return speed_east_deg_sec * ft_per_deg_lon;
+}
+
+double FGAIBase::_get_speed_north_fps() const {
+    return speed_north_deg_sec * ft_per_deg_lat;
+}
+
 void FGAIBase::_setVS_fps( double _vs ) {
     vs = _vs/60.0;
 }
@@ -418,6 +558,15 @@ void FGAIBase::_setVS_fps( double _vs ) {
 double FGAIBase::_getAltitude() const {
     return altitude_ft;
 }
+
+bool FGAIBase::_getServiceable() const {
+    return serviceable;
+}
+
+SGPropertyNode* FGAIBase::_getProps() const {
+    return props;
+}
+
 void FGAIBase::_setAltitude( double _alt ) {
     setAltitude( _alt );
 }
@@ -426,27 +575,112 @@ bool FGAIBase::_isNight() {
     return (fgGetFloat("/sim/time/sun-angle-rad") > 1.57);
 }
 
+bool FGAIBase::_getCollisionData() {
+    return _collision_reported;
+}
+
+bool FGAIBase::_getImpactData() {
+    return _impact_reported;
+}
+
+double FGAIBase::_getImpactLat() const {
+    return _impact_lat;
+}
+
+double FGAIBase::_getImpactLon() const {
+    return _impact_lon;
+}
+
+double FGAIBase::_getImpactElevFt() const {
+    return _impact_elev * SG_METER_TO_FEET;
+}
+
+double FGAIBase::_getImpactPitch() const {
+    return _impact_pitch;
+}
+
+double FGAIBase::_getImpactRoll() const {
+    return _impact_roll;
+}
+
+double FGAIBase::_getImpactHdg() const {
+    return _impact_hdg;
+}
+
+double FGAIBase::_getImpactSpeed() const {
+    return _impact_speed;
+}
+
 int FGAIBase::getID() const {
     return  _refID;
 }
 
+int FGAIBase::_getSubID() const {
+    return  _subID;
+}
+
+double FGAIBase::_getSpeed() const {
+    return speed;
+}
+
+double FGAIBase::_getRoll() const {
+    return roll;
+}
+
+double FGAIBase::_getPitch() const {
+    return pitch;
+}
+
+double FGAIBase::_getHeading() const {
+    return hdg;
+}
+
+double  FGAIBase::_getXOffset() const {
+    return _x_offset;
+}
+
+double  FGAIBase::_getYOffset() const {
+    return _y_offset;
+}
+
+double  FGAIBase::_getZOffset() const {
+    return _z_offset;
+}
+
+const char* FGAIBase::_getPath() const {
+    return model_path.c_str();
+}
+
+const char* FGAIBase::_getSMPath() const {
+    return _path.c_str();
+}
+
+const char* FGAIBase::_getName() const {
+    return _name.c_str();
+}
+
+const char* FGAIBase::_getCallsign() const {
+    return _callsign.c_str();
+}
+
+const char* FGAIBase::_getSubmodel() const {
+    return _submodel.c_str();
+}
+
 void FGAIBase::CalculateMach() {
     // Calculate rho at altitude, using standard atmosphere
     // For the temperature T and the pressure p,
-
     double altitude = altitude_ft;
 
     if (altitude < 36152) {            // curve fits for the troposphere
-      T = 59 - 0.00356 * altitude;
-      p = 2116 * pow( ((T + 459.7) / 518.6) , 5.256);
-
+        T = 59 - 0.00356 * altitude;
+        p = 2116 * pow( ((T + 459.7) / 518.6) , 5.256);
     } else if ( 36152 < altitude && altitude < 82345 ) {    // lower stratosphere
-      T = -70;
-      p = 473.1 * pow( e , 1.73 - (0.000048 * altitude) );
-
+        T = -70;
+        p = 473.1 * pow( e , 1.73 - (0.000048 * altitude) );
     } else {                                    //  upper stratosphere
-      T = -205.05 + (0.00164 * altitude);
-      p = 51.97 * pow( ((T + 459.7) / 389.98) , -11.388);
+        T = -205.05 + (0.00164 * altitude);
+        p = 51.97 * pow( ((T + 459.7) / 389.98) , -11.388);
     }
 
     rho = p / (1718 * (T + 459.7));
@@ -456,21 +690,21 @@ void FGAIBase::CalculateMach() {
     // where:
     // a = speed of sound [ft/s]
     // g = specific heat ratio, which is usually equal to 1.4
-    // R = specific gas constant, which equals 1716 ft-lb/slug/°R
-
+    // R = specific gas constant, which equals 1716 ft-lb/slug/R
     a = sqrt ( 1.4 * 1716 * (T + 459.7));
 
     // calculate Mach number
-
     Mach = speed/a;
 
-    // cout  << "Speed(ft/s) "<< speed <<" Altitude(ft) "<< altitude << " Mach " << Mach;
+    // cout  << "Speed(ft/s) "<< speed <<" Altitude(ft) "<< altitude << " Mach " << Mach << endl;
 }
 
 int FGAIBase::_newAIModelID() {
     static int id = 0;
-   if (!++id)
-      id++;    // id = 0 is not allowed.
-   return id;
+
+    if (!++id)
+        id++;  // id = 0 is not allowed.
+
+    return id;
 }