108 lines
3.1 KiB
C++
108 lines
3.1 KiB
C++
// radiostack.cxx -- class to manage an instance of the radio stack
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//
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// Written by Curtis Olson, started April 2000.
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//
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// Copyright (C) 2000 Curtis L. Olson - curt@flightgear.org
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//
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// This program is free software; you can redistribute it and/or
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// modify it under the terms of the GNU General Public License as
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// published by the Free Software Foundation; either version 2 of the
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// License, or (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful, but
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// WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program; if not, write to the Free Software
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// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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//
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// $Id$
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#include <Navaids/ilslist.hxx>
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#include <Navaids/navlist.hxx>
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#include "radiostack.hxx"
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FGRadioStack *current_radiostack;
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// Constructor
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FGRadioStack::FGRadioStack() {
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need_update = true;
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}
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// Destructor
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FGRadioStack::~FGRadioStack() {
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}
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// Update nav/adf radios based on current postition
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void FGRadioStack::update( double lon, double lat, double elev ) {
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need_update = false;
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// nav1
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FGILS ils;
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if ( current_ilslist->query( lon, lat, elev, nav1_freq,
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&ils, &nav1_heading, &nav1_dist) ) {
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nav1_inrange = true;
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nav1_loc = true;
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nav1_lon = ils.get_loclon();
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nav1_lat = ils.get_loclat();
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nav1_elev = ils.get_gselev();
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nav1_target_gs = ils.get_gsangle();
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nav1_radial = ils.get_locheading() + 180.0;
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while ( nav1_radial < 0.0 ) { nav1_radial += 360.0; }
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while ( nav1_radial > 360.0 ) { nav1_radial -= 360.0; }
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// cout << "Found a vor station in range" << endl;
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// cout << " id = " << ils.get_locident() << endl;
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// cout << " heading = " << nav1_heading
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// << " dist = " << nav1_dist << endl;
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} else {
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nav1_inrange = false;
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// cout << "not picking up vor. :-(" << endl;
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}
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// nav2
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FGNav nav;
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if ( current_navlist->query( lon, lat, elev, nav2_freq,
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&nav, &nav2_heading, &nav2_dist) ) {
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nav2_inrange = true;
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nav2_loc = false;
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nav2_lon = nav.get_lon();
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nav2_lat = nav.get_lat();
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nav2_elev = nav.get_elev();
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nav2_radial = nav2_heading + 180.0;
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while ( nav2_radial < 0.0 ) { nav2_radial += 360.0; }
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while ( nav2_radial > 360.0 ) { nav2_radial -= 360.0; }
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// cout << "Found a vor station in range" << endl;
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// cout << " id = " << nav.get_ident() << endl;
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// cout << " heading = " << nav2_heading
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// << " dist = " << nav2_dist << endl;
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} else {
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nav2_inrange = false;
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// cout << "not picking up vor. :-(" << endl;
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}
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// adf
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double junk;
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if ( current_navlist->query( lon, lat, elev, adf_freq,
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&nav, &adf_heading, &junk) ) {
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adf_inrange = true;
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adf_lon = nav.get_lon();
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adf_lat = nav.get_lat();
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adf_elev = nav.get_elev();
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// cout << "Found an adf station in range" << endl;
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// cout << " id = " << nav.get_ident() << endl;
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// cout << " heading = " << adf_heading
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// << " dist = " << junk << endl;
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} else {
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adf_inrange = false;
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// cout << "not picking up adf. :-(" << endl;
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}
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}
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