//
// This file is in the Public Domain and comes with no warranty.
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
#include <simgear/compiler.h>
+#include <simgear/sg_inlines.h>
#include <simgear/math/sg_geodesy.hxx>
#include <simgear/math/sg_random.h>
#include <Main/fg_props.hxx>
-#include <Navaids/ilslist.hxx>
#include <Navaids/navlist.hxx>
+#include <Sound/audioident.hxx>
#include "dme.hxx"
-
/**
* Adjust the range.
*
double range_nm = 1.23 * sqrt(delta_elevation_ft);
if (range_nm > max_range_nm)
range_nm = max_range_nm;
+ else if (range_nm < 20.0)
+ range_nm = 20.0;
double rand = sg_random();
return range_nm + (range_nm * rand * rand);
}
-DME::DME ()
+DME::DME ( SGPropertyNode *node )
: _last_distance_nm(0),
_last_frequency_mhz(-1),
_time_before_search_sec(0),
- _transmitter_valid(false),
- _transmitter_elevation_ft(0),
- _transmitter_range_nm(0)
+ _navrecord(NULL),
+ _name(node->getStringValue("name", "dme")),
+ _num(node->getIntValue("number", 0)),
+ _audioIdent(NULL)
{
}
DME::~DME ()
{
+ delete _audioIdent;
}
void
DME::init ()
{
- _longitude_node = fgGetNode("/position/longitude-deg", true);
- _latitude_node = fgGetNode("/position/latitude-deg", true);
- _altitude_node = fgGetNode("/position/altitude-ft", true);
- _serviceable_node = fgGetNode("/instrumentation/dme/serviceable", true);
+ string branch;
+ branch = "/instrumentation/" + _name;
+
+ SGPropertyNode *node = fgGetNode(branch.c_str(), _num, true );
+
+ _serviceable_node = node->getChild("serviceable", 0, true);
_electrical_node = fgGetNode("/systems/electrical/outputs/dme", true);
- _source_node = fgGetNode("/instrumentation/dme/frequencies/source", true);
- _frequency_node =
- fgGetNode("/instrumentation/dme/frequencies/selected-mhz", true);
-
- _in_range_node = fgGetNode("/instrumentation/dme/in-range", true);
- _distance_node =
- fgGetNode("/instrumentation/dme/indicated-distance-nm", true);
- _speed_node =
- fgGetNode("/instrumentation/dme/indicated-ground-speed-kt", true);
- _time_node =
- fgGetNode("/instrumentation/dme/indicated-time-min", true);
+ SGPropertyNode *fnode = node->getChild("frequencies", 0, true);
+ _source_node = fnode->getChild("source", 0, true);
+ _frequency_node = fnode->getChild("selected-mhz", 0, true);
+ _in_range_node = node->getChild("in-range", 0, true);
+ _distance_node = node->getChild("indicated-distance-nm", 0, true);
+ _speed_node = node->getChild("indicated-ground-speed-kt", 0, true);
+ _time_node = node->getChild("indicated-time-min", 0, true);
+
+ double d = node->getDoubleValue( "volume", 1.0 );
+ _volume_node = node->getChild("volume", 0, true);
+ _volume_node->setDoubleValue( d );
+
+ bool b = node->getBoolValue( "ident", false );
+ _ident_btn_node = node->getChild("ident", 0, true);
+ _ident_btn_node->setBoolValue( b );
+
+ std::ostringstream temp;
+ temp << _name << "-ident-" << _num;
+ if( NULL == _audioIdent )
+ _audioIdent = new DMEAudioIdent( temp.str() );
+ _audioIdent->init();
}
void
DME::update (double delta_time_sec)
{
+ if( delta_time_sec < SGLimitsd::min() )
+ return; //paused
+
// Figure out the source
const char * source = _source_node->getStringValue();
if (source[0] == '\0') {
- source = "/instrumentation/dme/frequencies/selected-mhz";
- _source_node->setStringValue(source);
+ string branch;
+ branch = "/instrumentation/" + _name + "/frequencies/selected-mhz";
+ _source_node->setStringValue(branch.c_str());
+ source = _source_node->getStringValue();
}
-
// Get the frequency
+
double frequency_mhz = fgGetDouble(source, 108.0);
if (frequency_mhz != _last_frequency_mhz) {
_time_before_search_sec = 0;
_last_frequency_mhz = frequency_mhz;
}
+ _frequency_node->setDoubleValue(frequency_mhz);
// Get the aircraft position
- double longitude_rad =
- _longitude_node->getDoubleValue() * SGD_DEGREES_TO_RADIANS;
- double latitude_rad =
- _latitude_node->getDoubleValue() * SGD_DEGREES_TO_RADIANS;
- double altitude_m =
- _altitude_node->getDoubleValue() * SG_FEET_TO_METER;
-
- // On timeout, scan again
+ // On timeout, scan again
_time_before_search_sec -= delta_time_sec;
- if (_time_before_search_sec < 0)
- search(frequency_mhz, longitude_rad,
- latitude_rad, altitude_m);
+ if (_time_before_search_sec < 0) {
+ _time_before_search_sec = 1.0;
+
+ if( fgGetBool( "/sim/realism/dme-fallback-to-loc", true ) ) {
+ if( NULL == (_navrecord = globals->get_loclist()->findByFreq( frequency_mhz,
+ globals->get_aircraft_position())) ) {
+
+ _navrecord = globals->get_dmelist()->findByFreq( frequency_mhz,
+ globals->get_aircraft_position());
+ }
+ } else {
+ _navrecord = globals->get_dmelist()->findByFreq( frequency_mhz,
+ globals->get_aircraft_position());
+ }
+ }
- // If it's off, don't bother.
+ // If it's off, don't bother.
if (!_serviceable_node->getBoolValue() ||
!_electrical_node->getBoolValue() ||
- !_transmitter_valid) {
+ NULL == _navrecord ) {
_last_distance_nm = 0;
_in_range_node->setBoolValue(false);
_distance_node->setDoubleValue(0);
_speed_node->setDoubleValue(0);
_time_node->setDoubleValue(0);
+ _audioIdent->setIdent("", 0.0 );
return;
}
- // Calculate the distance to the transmitter
- Point3D location =
- sgGeodToCart(Point3D(longitude_rad, latitude_rad, altitude_m));
- double distance_nm = _transmitter.distance3D(location) * SG_METER_TO_NM;
- double range_nm = adjust_range(_transmitter_elevation_ft,
- altitude_m * SG_METER_TO_FEET,
- _transmitter_range_nm);
+ // Calculate the distance to the transmitter
+ SGVec3d location = SGVec3d::fromGeod(globals->get_aircraft_position());
+
+ double distance_nm = dist(_navrecord->cart(), location) * SG_METER_TO_NM;
+
+ double range_nm = adjust_range(_navrecord->get_elev_ft(),
+ globals->get_aircraft_position().getElevationFt(),
+ _navrecord->get_range());
+
if (distance_nm <= range_nm) {
+ double volume = _volume_node->getDoubleValue();
+ if( false == _ident_btn_node->getBoolValue() )
+ volume = 0.0;
+
+ _audioIdent->setIdent(_navrecord->ident(), volume );
+
double speed_kt = (fabs(distance_nm - _last_distance_nm) *
((1 / delta_time_sec) * 3600.0));
_last_distance_nm = distance_nm;
_in_range_node->setBoolValue(true);
- _distance_node->setDoubleValue(distance_nm);
+ double tmp_dist = distance_nm - _navrecord->get_multiuse();
+ if ( tmp_dist < 0.0 ) {
+ tmp_dist = 0.0;
+ }
+ _distance_node->setDoubleValue( tmp_dist );
_speed_node->setDoubleValue(speed_kt);
- _time_node->setDoubleValue(distance_nm/speed_kt*60.0);
+ if (SGLimitsd::min() < fabs(speed_kt))
+ _time_node->setDoubleValue(distance_nm/speed_kt*60.0);
} else {
_last_distance_nm = 0;
_distance_node->setDoubleValue(0);
_speed_node->setDoubleValue(0);
_time_node->setDoubleValue(0);
+ _audioIdent->setIdent("", 0.0 );
}
-}
-
-void
-DME::search (double frequency_mhz, double longitude_rad,
- double latitude_rad, double altitude_m)
-{
- // reset search time
- _time_before_search_sec = 1.0;
-
- // try the ILS list first
- FGILS * ils = current_ilslist->findByFreq(frequency_mhz,
- longitude_rad,
- latitude_rad,
- altitude_m);
- if (ils != 0 && ils->get_has_dme()) {
- _transmitter_valid = true;
- _transmitter = Point3D(ils->get_dme_x(),
- ils->get_dme_y(),
- ils->get_dme_z());
- _transmitter_elevation_ft = ils->get_gselev() * SG_METER_TO_FEET;
- _transmitter_range_nm = 50; // arbitrary
- return;
- }
-
- // try the VORs next
- FGNav * nav = current_navlist->findByFreq(frequency_mhz,
- longitude_rad,
- latitude_rad,
- altitude_m);
- if (nav != 0)
- if (nav != 0 && nav->get_has_dme()) {
- _transmitter_valid = true;
- _transmitter = Point3D(nav->get_x(),
- nav->get_y(),
- nav->get_z());
- _transmitter_elevation_ft = nav->get_elev() * SG_METER_TO_FEET;
- _transmitter_range_nm = nav->get_range(); // fixme
- return;
- }
-
- _transmitter_valid = false;
+
+ _audioIdent->update( delta_time_sec );
}
// end of dme.cxx