156 lines
4.8 KiB
C++
156 lines
4.8 KiB
C++
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// atis.cxx - routines to generate the ATIS info string
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//
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// Written by David Luff, started October 2001.
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//
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// Copyright (C) 2001 David C Luff - david.luff@nottingham.ac.uk
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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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#ifdef HAVE_CONFIG_H
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# include <config.h>
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#endif
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#include <simgear/compiler.h>
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#include <string>
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SG_USING_STD(string);
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//#include STL_IOSTREAM
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//#if !defined(SG_HAVE_NATIVE_SGI_COMPILERS)
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//SG_USING_STD(cout);
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//#endif
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//#include <simgear/debug/logstream.hxx>
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//#include <simgear/misc/sgstream.hxx>
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//#include <simgear/math/sg_geodesy.hxx>
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#include <simgear/misc/sg_path.hxx>
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//#ifndef FG_OLD_WEATHER
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//#include <WeatherCM/FGLocalWeatherDatabase.h>
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//#else
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//# include <Weather/weather.hxx>
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//#endif
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#include <Main/fg_props.hxx>
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#include <Airports/runways.hxx>
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#include "atis.hxx"
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// Constructor
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FGATIS::FGATIS() {
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}
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// Destructor
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FGATIS::~FGATIS() {
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}
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string FGATIS::get_transmission() {
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//void FGATIS::get_transmission() {
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string transmission = "";
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double visibility;
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double temperature;
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char buf[10];
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// Only update every so-many loops - FIXME - possibly register this with the event scheduler
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// Ack this doesn't work since the static counter is shared between all instances of FGATIS
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// OK, for now the radiostack is handling only calling this every-so-often but that is not really
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// a proper solution since the atis knows when the transmission is going to change not the radio.
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//static int i=0;
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//if(i == 0) {
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transmission = "";
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// Start with the transmitted station name.
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transmission += name;
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// Add the recording identifier
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// TODO - this is hardwired for now - ultimately we need to start with a random one and then increment it with each recording
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transmission += " Charlie";
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// Output the recording time. - we'll just output the last whole hour for now.
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string time_str = fgGetString("sim/time/gmt-string");
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// FIXME - this only gets GMT time but that appears to be all the clock outputs for now
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//cout << "in atis.cxx, time = " << time_str << endl;
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transmission = transmission + " Weather " + time_str.substr(0,3) + "00 hours Zulu";
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// Get the temperature
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// Hardwire the temperature for now - is the local weather database running yet?
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transmission += " Temperature 25 degrees Celcius";
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// Get the pressure / altimeter
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// Get the visibility
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visibility = fgGetDouble("/environment/visibility-m");
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sprintf(buf, "%d", int(visibility/1600));
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transmission += " Visibility ";
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transmission += buf;
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transmission += " miles";
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// Get the cloudbase
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if(fgGetBool("/environment/clouds/status")) {
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double cloudbase = fgGetDouble("/environment/clouds/altitude-ft");
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// For some reason the altitude returned doesn't seem to correspond to the actual cloud altitude.
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char buf3[10];
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cout << "cloudbase = " << cloudbase << endl;
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sprintf(buf3, "%i", int(cloudbase));
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transmission = transmission + " Cloudbase " + buf3 + " feet";
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}
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// Based on the airport-id and wind get the active runway
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//FGRunway *r;
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SGPath path( globals->get_fg_root() );
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path.append( "Airports" );
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path.append( "runways.mk4" );
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FGRunways runways( path.c_str() );
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//Set the heading to into the wind
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double hdg = fgGetDouble("/environment/wind-from-heading-deg");
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double speed = fgGetDouble("/environment/wind-speed-knots");
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//cout << "in atis.cxx, hdg = " << hdg << " speed = " << speed << endl;
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//If no wind use 270degrees
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if(speed == 0) {
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hdg = 270;
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transmission += " Winds light and variable";
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} else {
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//add a description of the wind to the transmission
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char buf2[48];
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sprintf(buf2, "%s %i %s %i %s", " Winds ", int(speed), " knots from ", int(hdg), " degrees");
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transmission += buf2;
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}
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string rwy_no = runways.search(ident, hdg);
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if(rwy_no != "NN") {
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transmission += " Landing and departing runway ";
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transmission += rwy_no;
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//cout << "in atis.cxx, r.rwy_no = " << rwy_no << " r.id = " << r->id << " r.heading = " << r->heading << endl;
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}
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// Anything else?
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// TODO - unhardwire the identifier
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transmission += " Advise controller on initial contact you have Charlie";
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//}
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// i++;
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// if(i == 600) {
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// i=0;
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// }
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return(transmission);
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}
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