#include <Navaids/ilslist.hxx>
#include <Navaids/mkrbeacons.hxx>
#include <Navaids/navlist.hxx>
-#include <Time/FGEventMgr.hxx>
#include "radiostack.hxx"
FGRadioStack *current_radiostack;
-/**
- * Boy, this is ugly! Make the VOR range vary by altitude difference.
- */
-static double kludgeRange ( double stationElev, double aircraftElev,
- double nominalRange)
-{
- // Assume that the nominal range (usually
- // 50nm) applies at a 5,000 ft difference.
- // Just a wild guess!
- double factor = ((aircraftElev*SG_METER_TO_FEET) - stationElev) / 5000.0;
- double range = fabs(nominalRange * factor);
-
- // Clamp the range to keep it sane; for
- // now, never less than 25% or more than
- // 500% of nominal range.
- if (range < nominalRange/4.0) {
- range = nominalRange/4.0;
- } else if (range > nominalRange*5.0) {
- range = nominalRange*5.0;
- }
-
- return range;
-}
-
-
// Constructor
-FGRadioStack::FGRadioStack() :
- lon_node(fgGetNode("/position/longitude-deg", true)),
- lat_node(fgGetNode("/position/latitude-deg", true)),
- alt_node(fgGetNode("/position/altitude-ft", true)),
- dme_bus_power(fgGetNode("/systems/electrical/outputs/dme", true)),
- need_update(true),
- dme_freq(0.0),
- dme_dist(0.0),
- dme_prev_dist(0.0),
- dme_spd(0.0),
- dme_ete(0.0),
- outer_blink(false),
- middle_blink(false),
- inner_blink(false)
-{
- SGPath path( globals->get_fg_root() );
- SGPath term = path;
- term.append( "Navaids/range.term" );
- SGPath low = path;
- low.append( "Navaids/range.low" );
- SGPath high = path;
- high.append( "Navaids/range.high" );
-
- term_tbl = new SGInterpTable( term.str() );
- low_tbl = new SGInterpTable( low.str() );
- high_tbl = new SGInterpTable( high.str() );
- dme_last_time.stamp();
+FGRadioStack::FGRadioStack() {
}
// Destructor
FGRadioStack::~FGRadioStack()
{
+ adf.unbind();
+ beacon.unbind();
navcom1.unbind();
navcom2.unbind();
- adf.unbind();
xponder.unbind();
- unbind(); // FIXME: should be called externally
-
- delete term_tbl;
- delete low_tbl;
- delete high_tbl;
}
navcom2.init();
adf.init();
- xponder.init();
-
- morse.init();
beacon.init();
- blink.stamp();
+ xponder.init();
search();
- navcom1.search();
- navcom2.search();
- adf.search();
- xponder.search();
-
update(0); // FIXME: use dt
- navcom1.update(0);
- navcom2.update(0);
- adf.update(0);
- xponder.update(0);
// Search radio database once per second
- global_events.Register( "fgRadioSearch()",
- current_radiostack, &FGRadioStack::search,
- 1000 );
+ globals->get_event_mgr()->addTask( "fgRadioSearch()", current_radiostack,
+ &FGRadioStack::search, 1 );
}
+
void
FGRadioStack::bind ()
{
-
- // User inputs
- fgTie("/radios/dme/frequencies/selected-khz", this,
- &FGRadioStack::get_dme_freq, &FGRadioStack::set_dme_freq);
-
- // Radio outputs
- fgTie("/radios/dme/in-range", this, &FGRadioStack::get_dme_inrange);
-
- fgTie("/radios/dme/distance-nm", this, &FGRadioStack::get_dme_dist);
-
- fgTie("/radios/dme/speed-kt", this, &FGRadioStack::get_dme_spd);
-
- fgTie("/radios/dme/ete-min", this, &FGRadioStack::get_dme_ete);
-
- fgTie("/radios/marker-beacon/inner", this,
- &FGRadioStack::get_inner_blink);
-
- fgTie("/radios/marker-beacon/middle", this,
- &FGRadioStack::get_middle_blink);
-
- fgTie("/radios/marker-beacon/outer", this,
- &FGRadioStack::get_outer_blink);
-
+ adf.bind();
+ beacon.bind();
+ dme.bind();
navcom1.set_bind_index( 0 );
navcom1.bind();
navcom2.set_bind_index( 1 );
navcom2.bind();
- adf.bind();
xponder.bind();
}
+
void
FGRadioStack::unbind ()
{
- fgUntie("/radios/dme/frequencies/selected-khz");
-
- // Radio outputs
- fgUntie("/radios/dme/in-range");
- fgUntie("/radios/dme/distance-nm");
- fgUntie("/radios/dme/speed-kt");
- fgUntie("/radios/dme/ete-min");
-
- fgUntie("/radios/marker-beacon/inner");
- fgUntie("/radios/marker-beacon/middle");
- fgUntie("/radios/marker-beacon/outer");
-
+ adf.unbind();
+ beacon.unbind();
+ dme.unbind();
navcom1.unbind();
navcom2.unbind();
- adf.unbind();
xponder.unbind();
}
void
FGRadioStack::update(double dt)
{
- double lon = lon_node->getDoubleValue() * SGD_DEGREES_TO_RADIANS;
- double lat = lat_node->getDoubleValue() * SGD_DEGREES_TO_RADIANS;
- double elev = alt_node->getDoubleValue() * SG_FEET_TO_METER;
-
- need_update = false;
-
- Point3D aircraft = sgGeodToCart( Point3D( lon, lat, elev ) );
- Point3D station;
-
+ adf.update( dt );
+ beacon.update( dt );
navcom1.update( dt );
navcom2.update( dt );
-
- ////////////////////////////////////////////////////////////////////////
- // DME.
- ////////////////////////////////////////////////////////////////////////
-
- if ( dme_valid && dme_has_power() ) {
- station = Point3D( dme_x, dme_y, dme_z );
- dme_dist = aircraft.distance3D( station ) * SG_METER_TO_NM;
- dme_effective_range = kludgeRange(dme_elev, elev, dme_range);
- if (dme_dist < dme_effective_range * SG_NM_TO_METER) {
- dme_inrange = true;
- } else if (dme_dist < 2 * dme_effective_range * SG_NM_TO_METER) {
- dme_inrange = sg_random() <
- (2 * dme_effective_range * SG_NM_TO_METER - dme_dist) /
- (dme_effective_range * SG_NM_TO_METER);
- } else {
- dme_inrange = false;
- }
- if ( dme_inrange ) {
- SGTimeStamp current_time;
- station = Point3D( dme_x, dme_y, dme_z );
- dme_dist = aircraft.distance3D( station ) * SG_METER_TO_NM;
- current_time.stamp();
- long dMs = (current_time - dme_last_time) / 1000;
- // Update every second
- if (dMs >= 1000) {
- double dDist = dme_dist - dme_prev_dist;
- dme_spd = fabs((dDist/dMs) * 3600000);
- // FIXME: the panel should be able to
- // handle this!!!
- if (dme_spd > 999.0)
- dme_spd = 999.0;
- dme_ete = fabs((dme_dist/dme_spd) * 60.0);
- // FIXME: the panel should be able to
- // handle this!!!
- if (dme_ete > 99.0)
- dme_ete = 99.0;
- dme_prev_dist = dme_dist;
- dme_last_time.stamp();
- }
- }
- } else {
- dme_inrange = false;
- dme_dist = 0.0;
- dme_prev_dist = 0.0;
- dme_spd = 0.0;
- dme_ete = 0.0;
- }
-
- // marker beacon blinking
- bool light_on = ( outer_blink || middle_blink || inner_blink );
- SGTimeStamp current;
- current.stamp();
-
- if ( light_on && (current - blink > 400000) ) {
- light_on = false;
- blink.stamp();
- } else if ( !light_on && (current - blink > 100000) ) {
- light_on = true;
- blink.stamp();
- }
-
- if ( outer_marker ) {
- outer_blink = light_on;
- } else {
- outer_blink = false;
- }
-
- if ( middle_marker ) {
- middle_blink = light_on;
- } else {
- middle_blink = false;
- }
-
- if ( inner_marker ) {
- inner_blink = light_on;
- } else {
- inner_blink = false;
- }
-
- // cout << outer_blink << " " << middle_blink << " " << inner_blink << endl;
-
- adf.update( dt );
+ dme.update( dt ); // dme is updated after the navcom's
xponder.update( dt );
}
// Update current nav/adf radio stations based on current postition
void FGRadioStack::search()
{
- static FGMkrBeacon::fgMkrBeacType last_beacon = FGMkrBeacon::NOBEACON;
-
- double lon = lon_node->getDoubleValue() * SGD_DEGREES_TO_RADIANS;
- double lat = lat_node->getDoubleValue() * SGD_DEGREES_TO_RADIANS;
- double elev = alt_node->getDoubleValue() * SG_FEET_TO_METER;
-
- // FIXME: the panel should handle this
- // don't worry about overhead for now,
- // since this is handled only periodically
- dme_switch_pos = fgGetInt("/radios/dme/switch-position", 2);
- if ( dme_switch_pos == 1 && dme_has_power() && navcom1.has_power() ) {
- if ( dme_freq != navcom1.get_nav_freq() ) {
- dme_freq = navcom1.get_nav_freq();
- need_update = true;
- }
- } else if ( dme_switch_pos == 3 && dme_has_power() && navcom2.has_power() ){
- if ( dme_freq != navcom2.get_nav_freq() ) {
- dme_freq = navcom2.get_nav_freq();
- need_update = true;
- }
- } else {
- dme_freq = 0;
- dme_inrange = false;
- }
-
- FGILS ils;
- FGNav nav;
-
+ adf.search();
+ beacon.search();
navcom1.search();
navcom2.search();
-
- ////////////////////////////////////////////////////////////////////////
- // DME
- ////////////////////////////////////////////////////////////////////////
-
- if ( current_ilslist->query( lon, lat, elev, dme_freq, &ils ) ) {
- if (ils.get_has_dme()) {
- dme_valid = true;
- dme_lon = ils.get_loclon();
- dme_lat = ils.get_loclat();
- dme_elev = ils.get_gselev();
- dme_range = FG_ILS_DEFAULT_RANGE;
- dme_effective_range = kludgeRange(dme_elev, elev, dme_range);
- dme_x = ils.get_dme_x();
- dme_y = ils.get_dme_y();
- dme_z = ils.get_dme_z();
- }
- } else if ( current_navlist->query( lon, lat, elev, dme_freq, &nav ) ) {
- if (nav.get_has_dme()) {
- dme_valid = true;
- dme_lon = nav.get_lon();
- dme_lat = nav.get_lat();
- dme_elev = nav.get_elev();
- dme_range = nav.get_range();
- dme_effective_range = kludgeRange(dme_elev, elev, dme_range);
- dme_x = nav.get_x();
- dme_y = nav.get_y();
- dme_z = nav.get_z();
- }
- } else {
- dme_valid = false;
- dme_dist = 0;
- }
-
-
- ////////////////////////////////////////////////////////////////////////
- // Beacons.
- ////////////////////////////////////////////////////////////////////////
-
- FGMkrBeacon::fgMkrBeacType beacon_type
- = current_beacons->query( lon * SGD_RADIANS_TO_DEGREES,
- lat * SGD_RADIANS_TO_DEGREES, elev );
-
- outer_marker = middle_marker = inner_marker = false;
-
- if ( beacon_type == FGMkrBeacon::OUTER ) {
- outer_marker = true;
- // cout << "OUTER MARKER" << endl;
-#ifdef ENABLE_AUDIO_SUPPORT
- if ( last_beacon != FGMkrBeacon::OUTER ) {
- if ( ! globals->get_soundmgr()->exists( "outer-marker" ) ) {
- FGSimpleSound *sound = beacon.get_outer();
- sound->set_volume( 0.3 );
- globals->get_soundmgr()->add( sound, "outer-marker" );
- }
- if ( !globals->get_soundmgr()->is_playing("outer-marker") ) {
- globals->get_soundmgr()->play_looped( "outer-marker" );
- }
- }
-#endif
- } else if ( beacon_type == FGMkrBeacon::MIDDLE ) {
- middle_marker = true;
- // cout << "MIDDLE MARKER" << endl;
-#ifdef ENABLE_AUDIO_SUPPORT
- if ( last_beacon != FGMkrBeacon::MIDDLE ) {
- if ( ! globals->get_soundmgr()->exists( "middle-marker" ) ) {
- FGSimpleSound *sound = beacon.get_middle();
- sound->set_volume( 0.3 );
- globals->get_soundmgr()->add( sound, "middle-marker" );
- }
- if ( !globals->get_soundmgr()->is_playing("middle-marker") ) {
- globals->get_soundmgr()->play_looped( "middle-marker" );
- }
- }
-#endif
- } else if ( beacon_type == FGMkrBeacon::INNER ) {
- inner_marker = true;
- // cout << "INNER MARKER" << endl;
-#ifdef ENABLE_AUDIO_SUPPORT
- if ( last_beacon != FGMkrBeacon::INNER ) {
- if ( ! globals->get_soundmgr()->exists( "inner-marker" ) ) {
- FGSimpleSound *sound = beacon.get_inner();
- sound->set_volume( 0.3 );
- globals->get_soundmgr()->add( sound, "inner-marker" );
- }
- if ( !globals->get_soundmgr()->is_playing("inner-marker") ) {
- globals->get_soundmgr()->play_looped( "inner-marker" );
- }
- }
-#endif
- } else {
- // cout << "no marker" << endl;
-#ifdef ENABLE_AUDIO_SUPPORT
- globals->get_soundmgr()->stop( "outer-marker" );
- globals->get_soundmgr()->stop( "middle-marker" );
- globals->get_soundmgr()->stop( "inner-marker" );
-#endif
- }
- last_beacon = beacon_type;
-
- adf.search();
+ dme.search();
xponder.search();
}
projects / flightgear.git / blobdiff