3b870192f4
properties have been renamed from wind-(north|east|down)-fps to wind-from-(north|east|down)-fps, and the FDMs modified appropriately. No other changes should be visible unless FG_OLD_WEATHER is defined.
225 lines
7 KiB
C++
225 lines
7 KiB
C++
// 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 <stdlib.h> // atoi()
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#include <stdio.h> // sprintf
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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/misc/sg_path.hxx>
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//#ifndef FG_OLD_WEATHER
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//sorry, that works only with the new weather system
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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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#include "atislist.hxx"
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string GetPhoneticIdent(int i) {
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// TODO - Check i is between 1 and 26 and wrap if necessary
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switch(i) {
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case 1 : return("Alpha");
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case 2 : return("Bravo");
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case 3 : return("Charlie");
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case 4 : return("Delta");
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case 5 : return("Echo");
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case 6 : return("Foxtrot");
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case 7 : return("Golf");
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case 8 : return("Hotel");
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case 9 : return("Indigo");
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case 10 : return("Juliet");
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case 11 : return("Kilo");
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case 12 : return("Lima");
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case 13 : return("Mike");
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case 14 : return("November");
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case 15 : return("Oscar");
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case 16 : return("Papa");
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case 17 : return("Quebec");
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case 18 : return("Romeo");
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case 19 : return("Sierra");
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case 20 : return("Tango");
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case 21 : return("Uniform");
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case 22 : return("Victor");
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case 23 : return("Whiskey");
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case 24 : return("X-ray");
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case 25 : return("Yankee");
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case 26 : return("Zulu");
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}
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// We shouldn't get here
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return("Error");
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}
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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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#if !defined(FG_OLD_WEATHER)
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string transmission = "";
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double visibility;
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char buf[10];
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int phonetic_id;
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string phonetic_id_string;
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string time_str = fgGetString("sim/time/gmt-string");
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int hours;
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// int minutes;
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sgVec3 position = { lat, lon, elev };
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FGPhysicalProperty stationweather = WeatherDatabase->get(position);
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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 "Information"
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transmission += " Information";
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//cout << "In atis.cxx, time_str = " << time_str << '\n';
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// Add the recording identifier
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// For now we will assume we only transmit every hour
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hours = atoi((time_str.substr(1,2)).c_str()); //Warning - this is fragile if the
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//time string format changes
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//cout << "In atis.cxx, hours = " << hours << endl;
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phonetic_id = current_atislist->GetCallSign(ident, hours, 0);
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phonetic_id_string = GetPhoneticIdent(phonetic_id);
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transmission += " ";
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transmission += phonetic_id_string;
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// Output the recording time. - we'll just output the last whole hour for now.
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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 it for now since the global property returns the temperature at the current altitude
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//temperature = fgGetDouble("/environment/weather/temperature-K");
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sprintf(buf, "%i", int(stationweather.Temperature - 273.15));
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transmission += " Temperature ";
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transmission += buf;
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transmission += " degrees Celsius";
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// Get the pressure / altimeter
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// pressure is: stationweather.AirPressure in Pascal
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// Get the visibility
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visibility = fgGetDouble("/environment/visibility-m");
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sprintf(buf, "%i", 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 wind_x = stationweather.Wind[0];
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double wind_y = stationweather.Wind[1];
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double speed = sqrt( wind_x*wind_x + wind_y*wind_y ) * SG_METER_TO_NM / (60.0*60.0);
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double hdg;
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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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// //normalize the wind to get the direction
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//wind_x /= speed; wind_y /= speed;
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hdg = - atan2 ( wind_x, wind_y ) * SG_RADIANS_TO_DEGREES ;
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if (hdg < 0.0)
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hdg += 360.0;
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//add a description of the wind to the transmission
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char buf2[72];
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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, int(hdg));
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if(rwy_no != (string)"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 ";
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transmission += phonetic_id_string;
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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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#else
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return "Station unavailable (not supported by FG_OLD_WEATHER)";
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#endif // FG_OLD_WEATHER
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}
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