1 // FGAIBase - abstract base class for AI objects
2 // Written by David Culp, started Nov 2003, based on
3 // David Luff's FGAIEntity class.
4 // - davidculp2@comcast.net
6 // With additions by Mathias Froehlich & Vivian Meazza 2004 -2007
8 // This program is free software; you can redistribute it and/or
9 // modify it under the terms of the GNU General Public License as
10 // published by the Free Software Foundation; either version 2 of the
11 // License, or (at your option) any later version.
13 // This program is distributed in the hope that it will be useful, but
14 // WITHOUT ANY WARRANTY; without even the implied warranty of
15 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 // General Public License for more details.
18 // You should have received a copy of the GNU General Public License
19 // along with this program; if not, write to the Free Software
20 // Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
29 #include <simgear/compiler.h>
33 #include <osg/ref_ptr>
35 #include <osgDB/FileUtils>
37 #include <simgear/misc/sg_path.hxx>
38 #include <simgear/scene/model/modellib.hxx>
39 #include <simgear/scene/util/SGNodeMasks.hxx>
40 #include <simgear/debug/logstream.hxx>
41 #include <simgear/props/props.hxx>
43 #include <Main/globals.hxx>
44 #include <Scenery/scenery.hxx>
45 #include <Scripting/NasalSys.hxx>
46 #include <Scripting/NasalModelData.hxx>
47 #include <Sound/fg_fx.hxx>
50 #include "AIManager.hxx"
52 const char *default_model = "Models/Geometry/glider.ac";
53 const double FGAIBase::e = 2.71828183;
54 const double FGAIBase::lbs_to_slugs = 0.031080950172; //conversion factor
56 using namespace simgear;
58 FGAIBase::FGAIBase(object_type ot, bool enableHot) :
63 model_removed( fgGetNode("/ai/models/model-removed", true) ),
74 _refID( _newAIModelID() ),
80 tgt_heading = hdg = tgt_altitude_ft = tgt_speed = 0.0;
81 tgt_roll = roll = tgt_pitch = tgt_yaw = tgt_vs = vs = pitch = 0.0;
82 bearing = elevation = range = rdot = 0.0;
83 x_shift = y_shift = rotation = 0.0;
89 _impact_reported = false;
90 _collision_reported = false;
91 _expiry_reported = false;
103 userpos = SGGeod::fromDeg(0, 0);
105 pos = SGGeod::fromDeg(0, 0);
108 speed_north_deg_sec = 0;
109 speed_east_deg_sec = 0;
129 // explicitly disable HOT for (most) AI models
131 aip.getSceneGraph()->setNodeMask(~SG_NODEMASK_TERRAIN_BIT);
134 FGAIBase::~FGAIBase() {
135 // Unregister that one at the scenery manager
139 SGPropertyNode* parent = props->getParent();
142 model_removed->setStringValue(props->getPath());
152 /** Cleanly remove the model
153 * and let the scenery database pager do the clean-up work.
156 FGAIBase::removeModel()
161 FGScenery* pSceneryManager = globals->get_scenery();
164 osg::ref_ptr<osg::Object> temp = _model.get();
165 pSceneryManager->get_scene_graph()->removeChild(aip.getSceneGraph());
166 // withdraw from SGModelPlacement and drop own reference (unref)
169 // pass it on to the pager, to be be deleted in the pager thread
170 pSceneryManager->getPager()->queueDeleteRequest(temp);
174 SG_LOG(SG_AI, SG_ALERT, "AIBase: Could not unload model. Missing scenery manager!");
178 void FGAIBase::readFromScenario(SGPropertyNode* scFileNode)
183 setPath(scFileNode->getStringValue("model",
184 fgGetString("/sim/multiplay/default-model", default_model)));
186 setHeading(scFileNode->getDoubleValue("heading", 0.0));
187 setSpeed(scFileNode->getDoubleValue("speed", 0.0));
188 setAltitude(scFileNode->getDoubleValue("altitude", 0.0));
189 setLongitude(scFileNode->getDoubleValue("longitude", 0.0));
190 setLatitude(scFileNode->getDoubleValue("latitude", 0.0));
191 setBank(scFileNode->getDoubleValue("roll", 0.0));
193 SGPropertyNode* submodels = scFileNode->getChild("submodels");
196 setServiceable(submodels->getBoolValue("serviceable", false));
197 setSMPath(submodels->getStringValue("path", ""));
202 void FGAIBase::update(double dt) {
204 if (_otype == otStatic)
207 if (_otype == otBallistic)
210 ft_per_deg_lat = 366468.96 - 3717.12 * cos(pos.getLatitudeRad());
211 ft_per_deg_lon = 365228.16 * cos(pos.getLatitudeRad());
215 // update model's audio sample values
216 _fx->set_position_geod( pos );
218 SGQuatd orient = SGQuatd::fromYawPitchRollDeg(hdg, pitch, roll);
219 _fx->set_orientation( orient );
222 velocity = SGVec3d( speed_north_deg_sec, speed_east_deg_sec,
224 _fx->set_velocity( velocity );
226 else if ((_modeldata)&&(_modeldata->needInitilization()))
228 // process deferred nasal initialization,
229 // which must be done in main thread
232 // sound initialization
233 if (fgGetBool("/sim/sound/aimodels/enabled",false))
235 const string& fxpath = _modeldata->get_sound_path();
238 props->setStringValue("sim/sound/path", fxpath.c_str());
240 // initialize the sound configuration
241 std::stringstream name;
244 _fx = new FGFX(name.str(), props);
251 /** update LOD properties of the model */
252 void FGAIBase::updateLOD()
254 double maxRangeDetail = fgGetDouble("/sim/rendering/static-lod/ai-detailed", 10000.0);
255 double maxRangeBare = fgGetDouble("/sim/rendering/static-lod/ai-bare", 20000.0);
258 if( maxRangeDetail == 0.0 )
261 _model->setRange(0, 0.0, FLT_MAX);
262 _model->setRange(1, FLT_MAX, FLT_MAX);
266 _model->setRange(0, 0.0, maxRangeDetail);
267 _model->setRange(1, maxRangeDetail,maxRangeBare);
272 void FGAIBase::Transform() {
275 aip.setVisible(true);
276 aip.setPosition(pos);
279 aip.setOrientation(0.0, pitch, hdg);
281 aip.setOrientation(roll, pitch, hdg);
285 aip.setVisible(false);
291 bool FGAIBase::init(bool search_in_AI_path)
295 SG_LOG(SG_AI, SG_ALERT, "AIBase: Cannot initialize a model multiple times! " << model_path);
300 if(search_in_AI_path)
302 // setup a modified Options structure, with only the $fg-root/AI defined;
303 // we'll check that first, then give the normal search logic a chance.
304 // this ensures that models in AI/ are preferred to normal models, where
306 osg::ref_ptr<osgDB::ReaderWriter::Options>
307 opt(osg::clone(osgDB::Registry::instance()->getOptions(), osg::CopyOp::SHALLOW_COPY));
309 SGPath ai_path(globals->get_fg_root(), "AI");
310 opt->setDatabasePath(ai_path.str());
312 f = osgDB::findDataFile(model_path, opt.get());
316 f = simgear::SGModelLib::findDataFile(model_path);
320 f = fgGetString("/sim/multiplay/default-model", default_model);
324 _modeldata = new FGAIModelData(props);
325 osg::Node * mdl = SGModelLib::loadDeferredModel(f, props, _modeldata);
327 _model = new osg::LOD;
328 _model->setName("AI-model range animation node");
330 _model->addChild( mdl, 0, FLT_MAX );
331 _model->setCenterMode(osg::LOD::USE_BOUNDING_SPHERE_CENTER);
332 _model->setRangeMode(osg::LOD::DISTANCE_FROM_EYE_POINT);
333 // We really need low-resolution versions of AI/MP aircraft.
334 // Or at least dummy "stubs" with some default silhouette.
335 // _model->addChild( SGModelLib::loadPagedModel(fgGetString("/sim/multiplay/default-model", default_model),
336 // props, new FGNasalModelData(props)), FLT_MAX, FLT_MAX);
340 if (_model.valid() && _initialized == false) {
341 aip.init( _model.get() );
342 aip.setVisible(true);
344 globals->get_scenery()->get_scene_graph()->addChild(aip.getSceneGraph());
347 SG_LOG(SG_AI, SG_DEBUG, "AIBase: Loaded model " << model_path);
349 } else if (!model_path.empty()) {
350 SG_LOG(SG_AI, SG_WARN, "AIBase: Could not load model " << model_path);
351 // not properly installed...
359 void FGAIBase::initModel(osg::Node *node)
361 if (_model.valid()) {
364 props->setStringValue("submodels/path", _path.c_str());
365 SG_LOG(SG_AI, SG_DEBUG, "AIBase: submodels/path " << _path);
369 props->setStringValue("parent-name", _parent.c_str());
372 fgSetString("/ai/models/model-added", props->getPath().c_str());
373 } else if (!model_path.empty()) {
374 SG_LOG(SG_AI, SG_WARN, "AIBase: Could not load model " << model_path);
381 bool FGAIBase::isa( object_type otype ) {
382 return otype == _otype;
386 void FGAIBase::bind() {
387 _tiedProperties.setRoot(props);
388 tie("id", SGRawValueMethods<FGAIBase,int>(*this,
390 tie("velocities/true-airspeed-kt", SGRawValuePointer<double>(&speed));
391 tie("velocities/vertical-speed-fps",
392 SGRawValueMethods<FGAIBase,double>(*this,
393 &FGAIBase::_getVS_fps,
394 &FGAIBase::_setVS_fps));
396 tie("position/altitude-ft",
397 SGRawValueMethods<FGAIBase,double>(*this,
398 &FGAIBase::_getAltitude,
399 &FGAIBase::_setAltitude));
400 tie("position/latitude-deg",
401 SGRawValueMethods<FGAIBase,double>(*this,
402 &FGAIBase::_getLatitude,
403 &FGAIBase::_setLatitude));
404 tie("position/longitude-deg",
405 SGRawValueMethods<FGAIBase,double>(*this,
406 &FGAIBase::_getLongitude,
407 &FGAIBase::_setLongitude));
409 tie("position/global-x",
410 SGRawValueMethods<FGAIBase,double>(*this,
411 &FGAIBase::_getCartPosX,
413 tie("position/global-y",
414 SGRawValueMethods<FGAIBase,double>(*this,
415 &FGAIBase::_getCartPosY,
417 tie("position/global-z",
418 SGRawValueMethods<FGAIBase,double>(*this,
419 &FGAIBase::_getCartPosZ,
422 SGRawValueMethods<FGAIBase,const char*>(*this,
423 &FGAIBase::_getCallsign,
426 tie("orientation/pitch-deg", SGRawValuePointer<double>(&pitch));
427 tie("orientation/roll-deg", SGRawValuePointer<double>(&roll));
428 tie("orientation/true-heading-deg", SGRawValuePointer<double>(&hdg));
430 tie("radar/in-range", SGRawValuePointer<bool>(&in_range));
431 tie("radar/bearing-deg", SGRawValuePointer<double>(&bearing));
432 tie("radar/elevation-deg", SGRawValuePointer<double>(&elevation));
433 tie("radar/range-nm", SGRawValuePointer<double>(&range));
434 tie("radar/h-offset", SGRawValuePointer<double>(&horiz_offset));
435 tie("radar/v-offset", SGRawValuePointer<double>(&vert_offset));
436 tie("radar/x-shift", SGRawValuePointer<double>(&x_shift));
437 tie("radar/y-shift", SGRawValuePointer<double>(&y_shift));
438 tie("radar/rotation", SGRawValuePointer<double>(&rotation));
439 tie("radar/ht-diff-ft", SGRawValuePointer<double>(&ht_diff));
440 tie("subID", SGRawValuePointer<int>(&_subID));
441 tie("controls/lighting/nav-lights", SGRawValueFunctions<bool>(_isNight));
443 props->setBoolValue("controls/lighting/beacon", true);
444 props->setBoolValue("controls/lighting/strobe", true);
445 props->setBoolValue("controls/glide-path", true);
447 props->setStringValue("controls/flight/lateral-mode", "roll");
448 props->setDoubleValue("controls/flight/target-hdg", hdg);
449 props->setDoubleValue("controls/flight/target-roll", roll);
451 props->setStringValue("controls/flight/longitude-mode", "alt");
452 props->setDoubleValue("controls/flight/target-alt", altitude_ft);
453 props->setDoubleValue("controls/flight/target-pitch", pitch);
455 props->setDoubleValue("controls/flight/target-spd", speed);
457 props->setBoolValue("sim/sound/avionics/enabled", false);
458 props->setDoubleValue("sim/sound/avionics/volume", 0.0);
459 props->setBoolValue("sim/sound/avionics/external-view", false);
460 props->setBoolValue("sim/current-view/internal", false);
463 void FGAIBase::unbind() {
464 _tiedProperties.Untie();
466 props->setBoolValue("/sim/controls/radar", true);
471 void FGAIBase::removeSoundFx() {
472 // drop reference to sound effects now
475 // must remove explicitly - since the sound manager also keeps a reference
477 // now drop last reference - kill the object
482 double FGAIBase::UpdateRadar(FGAIManager* manager) {
483 bool control = fgGetBool("/sim/controls/radar", true);
485 if(!control) return 0;
487 double radar_range_ft2 = fgGetDouble("/instrumentation/radar/range");
488 bool force_on = fgGetBool("/instrumentation/radar/debug-mode", false);
489 radar_range_ft2 *= SG_NM_TO_METER * SG_METER_TO_FEET * 1.1; // + 10%
490 radar_range_ft2 *= radar_range_ft2;
492 double user_latitude = manager->get_user_latitude();
493 double user_longitude = manager->get_user_longitude();
494 double lat_range = fabs(pos.getLatitudeDeg() - user_latitude) * ft_per_deg_lat;
495 double lon_range = fabs(pos.getLongitudeDeg() - user_longitude) * ft_per_deg_lon;
496 double range_ft2 = lat_range*lat_range + lon_range*lon_range;
499 // Test whether the target is within radar range.
501 in_range = (range_ft2 && (range_ft2 <= radar_range_ft2));
503 if ( in_range || force_on ) {
504 props->setBoolValue("radar/in-range", true);
506 // copy values from the AIManager
507 double user_altitude = manager->get_user_altitude();
508 double user_heading = manager->get_user_heading();
509 double user_pitch = manager->get_user_pitch();
510 //double user_yaw = manager->get_user_yaw();
511 //double user_speed = manager->get_user_speed();
513 // calculate range to target in feet and nautical miles
514 double range_ft = sqrt( range_ft2 );
515 range = range_ft / 6076.11549;
517 // calculate bearing to target
518 if (pos.getLatitudeDeg() >= user_latitude) {
519 bearing = atan2(lat_range, lon_range) * SG_RADIANS_TO_DEGREES;
520 if (pos.getLongitudeDeg() >= user_longitude) {
521 bearing = 90.0 - bearing;
523 bearing = 270.0 + bearing;
526 bearing = atan2(lon_range, lat_range) * SG_RADIANS_TO_DEGREES;
527 if (pos.getLongitudeDeg() >= user_longitude) {
528 bearing = 180.0 - bearing;
530 bearing = 180.0 + bearing;
534 // This is an alternate way to compute bearing and distance which
535 // agrees with the original scheme within about 0.1 degrees.
537 // Point3D start( user_longitude * SGD_DEGREES_TO_RADIANS,
538 // user_latitude * SGD_DEGREES_TO_RADIANS, 0 );
539 // Point3D dest( pos.getLongitudeRad(), pos.getLatitudeRad(), 0 );
540 // double gc_bearing, gc_range;
541 // calc_gc_course_dist( start, dest, &gc_bearing, &gc_range );
542 // gc_range *= SG_METER_TO_NM;
543 // gc_bearing *= SGD_RADIANS_TO_DEGREES;
544 // printf("orig b = %.3f %.2f gc b= %.3f, %.2f\n",
545 // bearing, range, gc_bearing, gc_range);
547 // calculate look left/right to target, without yaw correction
548 horiz_offset = bearing - user_heading;
549 if (horiz_offset > 180.0) horiz_offset -= 360.0;
550 if (horiz_offset < -180.0) horiz_offset += 360.0;
552 // calculate elevation to target
553 elevation = atan2( altitude_ft - user_altitude, range_ft ) * SG_RADIANS_TO_DEGREES;
555 // calculate look up/down to target
556 vert_offset = elevation - user_pitch;
558 /* this calculation needs to be fixed, but it isn't important anyway
559 // calculate range rate
560 double recip_bearing = bearing + 180.0;
561 if (recip_bearing > 360.0) recip_bearing -= 360.0;
562 double my_horiz_offset = recip_bearing - hdg;
563 if (my_horiz_offset > 180.0) my_horiz_offset -= 360.0;
564 if (my_horiz_offset < -180.0) my_horiz_offset += 360.0;
565 rdot = (-user_speed * cos( horiz_offset * SG_DEGREES_TO_RADIANS ))
566 +(-speed * 1.686 * cos( my_horiz_offset * SG_DEGREES_TO_RADIANS ));
569 // now correct look left/right for yaw
570 // horiz_offset += user_yaw; // FIXME: WHY WOULD WE WANT TO ADD IN SIDE-SLIP HERE?
572 // calculate values for radar display
573 y_shift = range * cos( horiz_offset * SG_DEGREES_TO_RADIANS);
574 x_shift = range * sin( horiz_offset * SG_DEGREES_TO_RADIANS);
575 rotation = hdg - user_heading;
576 if (rotation < 0.0) rotation += 360.0;
577 ht_diff = altitude_ft - user_altitude;
585 * Getters and Setters
588 SGVec3d FGAIBase::getCartPosAt(const SGVec3d& _off) const {
589 // Transform that one to the horizontal local coordinate system.
590 SGQuatd hlTrans = SGQuatd::fromLonLat(pos);
592 // and postrotate the orientation of the AIModel wrt the horizontal
594 hlTrans *= SGQuatd::fromYawPitchRollDeg(hdg, pitch, roll);
596 // The offset converted to the usual body fixed coordinate system
597 // rotated to the earth fixed coordinates axis
598 SGVec3d off = hlTrans.backTransform(_off);
600 // Add the position offset of the AIModel to gain the earth centered position
601 SGVec3d cartPos = SGVec3d::fromGeod(pos);
603 return cartPos + off;
606 SGVec3d FGAIBase::getCartPos() const {
607 SGVec3d cartPos = SGVec3d::fromGeod(pos);
611 bool FGAIBase::getGroundElevationM(const SGGeod& pos, double& elev,
612 const simgear::BVHMaterial** material) const {
613 return globals->get_scenery()->get_elevation_m(pos, elev, material,
617 double FGAIBase::_getCartPosX() const {
618 SGVec3d cartPos = getCartPos();
622 double FGAIBase::_getCartPosY() const {
623 SGVec3d cartPos = getCartPos();
627 double FGAIBase::_getCartPosZ() const {
628 SGVec3d cartPos = getCartPos();
632 void FGAIBase::_setLongitude( double longitude ) {
633 pos.setLongitudeDeg(longitude);
636 void FGAIBase::_setLatitude ( double latitude ) {
637 pos.setLatitudeDeg(latitude);
640 void FGAIBase::_setUserPos(){
641 userpos.setLatitudeDeg(manager->get_user_latitude());
642 userpos.setLongitudeDeg(manager->get_user_longitude());
643 userpos.setElevationM(manager->get_user_altitude() * SG_FEET_TO_METER);
646 void FGAIBase::_setSubID( int s ) {
650 bool FGAIBase::setParentNode() {
653 SG_LOG(SG_AI, SG_ALERT, "AIBase: " << _name
654 << " parent not set ");
658 const SGPropertyNode_ptr ai = fgGetNode("/ai/models", true);
660 for (int i = ai->nChildren() - 1; i >= -1; i--) {
661 SGPropertyNode_ptr model;
663 if (i < 0) { // last iteration: selected model
664 model = _selected_ac;
666 model = ai->getChild(i);
667 //const string& path = ai->getPath();
668 const string name = model->getStringValue("name");
670 if (!model->nChildren()){
673 if (name == _parent) {
674 _selected_ac = model; // save selected model for last iteration
684 if (_selected_ac != 0){
685 const string name = _selected_ac->getStringValue("name");
688 SG_LOG(SG_AI, SG_ALERT, "AIBase: " << _name
689 << " parent not found: dying ");
696 double FGAIBase::_getLongitude() const {
697 return pos.getLongitudeDeg();
700 double FGAIBase::_getLatitude() const {
701 return pos.getLatitudeDeg();
704 double FGAIBase::_getElevationFt() const {
705 return pos.getElevationFt();
708 double FGAIBase::_getRdot() const {
712 double FGAIBase::_getVS_fps() const {
716 double FGAIBase::_get_speed_east_fps() const {
717 return speed_east_deg_sec * ft_per_deg_lon;
720 double FGAIBase::_get_speed_north_fps() const {
721 return speed_north_deg_sec * ft_per_deg_lat;
724 void FGAIBase::_setVS_fps( double _vs ) {
728 double FGAIBase::_getAltitude() const {
732 double FGAIBase::_getAltitudeAGL(SGGeod inpos, double start){
733 getGroundElevationM(SGGeod::fromGeodM(inpos, start),
735 return inpos.getElevationFt() - _elevation_m * SG_METER_TO_FEET;
738 bool FGAIBase::_getServiceable() const {
742 SGPropertyNode* FGAIBase::_getProps() const {
746 void FGAIBase::_setAltitude( double _alt ) {
750 bool FGAIBase::_isNight() {
751 return (fgGetFloat("/sim/time/sun-angle-rad") > 1.57);
754 bool FGAIBase::_getCollisionData() {
755 return _collision_reported;
758 bool FGAIBase::_getExpiryData() {
759 return _expiry_reported;
762 bool FGAIBase::_getImpactData() {
763 return _impact_reported;
766 double FGAIBase::_getImpactLat() const {
770 double FGAIBase::_getImpactLon() const {
774 double FGAIBase::_getImpactElevFt() const {
775 return _impact_elev * SG_METER_TO_FEET;
778 double FGAIBase::_getImpactPitch() const {
779 return _impact_pitch;
782 double FGAIBase::_getImpactRoll() const {
786 double FGAIBase::_getImpactHdg() const {
790 double FGAIBase::_getImpactSpeed() const {
791 return _impact_speed;
794 int FGAIBase::getID() const {
798 int FGAIBase::_getSubID() const {
802 double FGAIBase::_getSpeed() const {
806 double FGAIBase::_getRoll() const {
810 double FGAIBase::_getPitch() const {
814 double FGAIBase::_getHeading() const {
818 double FGAIBase::_getXOffset() const {
822 double FGAIBase::_getYOffset() const {
826 double FGAIBase::_getZOffset() const {
830 const char* FGAIBase::_getPath() const {
831 return model_path.c_str();
834 const char* FGAIBase::_getSMPath() const {
835 return _path.c_str();
838 const char* FGAIBase::_getName() const {
839 return _name.c_str();
842 const char* FGAIBase::_getCallsign() const {
843 return _callsign.c_str();
846 const char* FGAIBase::_getSubmodel() const {
847 return _submodel.c_str();
850 void FGAIBase::CalculateMach() {
851 // Calculate rho at altitude, using standard atmosphere
852 // For the temperature T and the pressure p,
853 double altitude = altitude_ft;
855 if (altitude < 36152) { // curve fits for the troposphere
856 T = 59 - 0.00356 * altitude;
857 p = 2116 * pow( ((T + 459.7) / 518.6) , 5.256);
858 } else if ( 36152 < altitude && altitude < 82345 ) { // lower stratosphere
860 p = 473.1 * pow( e , 1.73 - (0.000048 * altitude) );
861 } else { // upper stratosphere
862 T = -205.05 + (0.00164 * altitude);
863 p = 51.97 * pow( ((T + 459.7) / 389.98) , -11.388);
866 rho = p / (1718 * (T + 459.7));
868 // calculate the speed of sound at altitude
869 // a = sqrt ( g * R * (T + 459.7))
871 // a = speed of sound [ft/s]
872 // g = specific heat ratio, which is usually equal to 1.4
873 // R = specific gas constant, which equals 1716 ft-lb/slug/R
874 a = sqrt ( 1.4 * 1716 * (T + 459.7));
876 // calculate Mach number
879 // cout << "Speed(ft/s) "<< speed <<" Altitude(ft) "<< altitude << " Mach " << Mach << endl;
882 int FGAIBase::_newAIModelID() {
886 id++; // id = 0 is not allowed.
892 FGAIModelData::FGAIModelData(SGPropertyNode *root)
893 : _nasal( new FGNasalModelDataProxy(root) ),
899 FGAIModelData::~FGAIModelData()
905 void FGAIModelData::modelLoaded(const string& path, SGPropertyNode *prop, osg::Node *n)
907 // WARNING: Called in a separate OSG thread! Only use thread-safe stuff here...
911 _fxpath = prop->getStringValue("sound/path");
912 _nasal->modelLoaded(path, prop, n);