X-Git-Url: https://git.mxchange.org/?a=blobdiff_plain;f=src%2FCockpit%2Fradiostack.cxx;h=09986f09621f052ec3d6e1d44db55863031ee3f8;hb=fee003e8cc17f0aa9a1e9280dd823d20e231e967;hp=264c33b1174fba84444eac7b5779599c6657a920;hpb=3d2311d884e6917f657058da6ba642048b63a2a5;p=flightgear.git

diff --git a/src/Cockpit/radiostack.cxx b/src/Cockpit/radiostack.cxx
index 264c33b11..09986f096 100644
--- a/src/Cockpit/radiostack.cxx
+++ b/src/Cockpit/radiostack.cxx
@@ -2,7 +2,7 @@
 //
 // Written by Curtis Olson, started April 2000.
 //
-// Copyright (C) 2000  Curtis L. Olson - curt@flightgear.org
+// Copyright (C) 2000  Curtis L. Olson - http://www.flightgear.org/~curt
 //
 // This program is free software; you can redistribute it and/or
 // modify it under the terms of the GNU General Public License as
@@ -31,10 +31,7 @@
 #include <simgear/math/sg_random.h>
 
 #include <Aircraft/aircraft.hxx>
-#include <Navaids/ilslist.hxx>
-#include <Navaids/mkrbeacons.hxx>
 #include <Navaids/navlist.hxx>
-#include <Time/FGEventMgr.hxx>
 
 #include "radiostack.hxx"
 
@@ -45,73 +42,19 @@ SG_USING_STD(string);
 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)),
-    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;
+    //xponder.unbind();
 }
 
 
@@ -124,146 +67,42 @@ FGRadioStack::init ()
     navcom2.set_bind_index( 1 );
     navcom2.init();
 
-    adf.init();
-    xponder.init();
-
-    morse.init();
-    beacon.init();
-    blink.stamp();
+    //adf.init();
+    //beacon.init();
+    //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();
+    //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();
-}
-
-
-// model standard VOR/DME/TACAN service volumes as per AIM 1-1-8
-double FGRadioStack::adjustNavRange( double stationElev, double aircraftElev,
-			      double nominalRange )
-{
-    // extend out actual usable range to be 1.3x the published safe range
-    const double usability_factor = 1.3;
-
-    // assumptions we model the standard service volume, plus
-    // ... rather than specifying a cylinder, we model a cone that
-    // contains the cylinder.  Then we put an upside down cone on top
-    // to model diminishing returns at too-high altitudes.
-
-    // altitude difference
-    double alt = ( aircraftElev * SG_METER_TO_FEET - stationElev );
-    // cout << "aircraft elev = " << aircraftElev * SG_METER_TO_FEET
-    //      << " station elev = " << stationElev << endl;
-
-    if ( nominalRange < 25.0 + SG_EPSILON ) {
-	// Standard Terminal Service Volume
-	return term_tbl->interpolate( alt ) * usability_factor;
-    } else if ( nominalRange < 50.0 + SG_EPSILON ) {
-	// Standard Low Altitude Service Volume
-	// table is based on range of 40, scale to actual range
-	return low_tbl->interpolate( alt ) * nominalRange / 40.0
-	    * usability_factor;
-    } else {
-	// Standard High Altitude Service Volume
-	// table is based on range of 130, scale to actual range
-	return high_tbl->interpolate( alt ) * nominalRange / 130.0
-	    * usability_factor;
-    }
-}
-
-
-// model standard ILS service volumes as per AIM 1-1-9
-double FGRadioStack::adjustILSRange( double stationElev, double aircraftElev,
-				     double offsetDegrees, double distance )
-{
-    // assumptions we model the standard service volume, plus
-
-    // altitude difference
-    // double alt = ( aircraftElev * SG_METER_TO_FEET - stationElev );
-    double offset = fabs( offsetDegrees );
-
-    if ( offset < 10 ) {
-	return FG_ILS_DEFAULT_RANGE;
-    } else if ( offset < 35 ) {
-	return 10 + (35 - offset) * (FG_ILS_DEFAULT_RANGE - 10) / 25;
-    } else if ( offset < 45 ) {
-	return (45 - offset);
-    } else if ( offset > 170 ) {
-        return FG_ILS_DEFAULT_RANGE;
-    } else if ( offset > 145 ) {
-	return 10 + (offset - 145) * (FG_ILS_DEFAULT_RANGE - 10) / 25;
-    } else if ( offset > 135 ) {
-        return (offset - 135);
-    } else {
-	return 0;
-    }
+    //xponder.unbind();
 }
 
 
@@ -271,237 +110,22 @@ double FGRadioStack::adjustILSRange( double stationElev, double aircraftElev,
 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) {
-	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;
-    }
-
-    // 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 );
-    xponder.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
-    int dme_switch_pos = fgGetInt("/radios/dme/switch-position");
-    if (dme_switch_pos == 0) {
-      dme_freq = 0;
-      dme_inrange = false;
-    } else if (dme_switch_pos == 1) {
-      if (dme_freq != navcom1.get_nav_freq()) {
-	dme_freq = navcom1.get_nav_freq();
-	need_update = true;
-      }
-    } else if (dme_switch_pos == 3) {
-      if (dme_freq != navcom2.get_nav_freq()) {
-	dme_freq = navcom2.get_nav_freq();
-	need_update = true;
-      }
-    }
-
-    FGILS ils;
-    FGNav nav;
-
-    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();
+    //beacon.search();
     navcom1.search();
     navcom2.search();
-    adf.search();
-    xponder.search();
+    //dme.search();
+    //xponder.search();
 }