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flightgear/Simulator/Airports/simple.cxx
1999-04-06 23:37:07 +00:00

110 lines
2.5 KiB
C++

//
// simple.cxx -- a really simplistic class to manage airport ID,
// lat, lon of the center of one of it's runways, and
// elevation in feet.
//
// Written by Curtis Olson, started April 1998.
//
// Copyright (C) 1998 Curtis L. Olson - curt@me.umn.edu
//
// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License as
// published by the Free Software Foundation; either version 2 of the
// License, or (at your option) any later version.
//
// This program is distributed in the hope that it will be useful, but
// WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
//
// $Id$
#include <Include/compiler.h>
#include <Debug/logstream.hxx>
#include <Misc/fgstream.hxx>
#include <Main/options.hxx>
#include STL_STRING
#include STL_FUNCTIONAL
#include STL_ALGORITHM
#include "simple.hxx"
fgAIRPORTS::fgAIRPORTS() {
}
// load the data
int fgAIRPORTS::load( const string& file ) {
fgAIRPORT a;
// build the path name to the airport file
string path = current_options.get_fg_root() + "/Airports/" + file;
airports.erase( airports.begin(), airports.end() );
fg_gzifstream in( path );
if ( !in ) {
FG_LOG( FG_GENERAL, FG_ALERT, "Cannot open file: " << path );
exit(-1);
}
/*
// We can use the STL copy algorithm because the input
// file doesn't contain and comments or blank lines.
copy( istream_iterator<fgAIRPORT,ptrdiff_t>(in.stream()),
istream_iterator<fgAIRPORT,ptrdiff_t>(),
inserter( airports, airports.begin() ) );
*/
// read in each line of the file
in >> skipcomment;
while ( ! in.eof() )
{
in >> a;
airports.insert(a);
in >> skipcomment;
}
return 1;
}
// search for the specified id
bool
fgAIRPORTS::search( const string& id, fgAIRPORT* a ) const
{
const_iterator it = airports.find( fgAIRPORT(id) );
if ( it != airports.end() )
{
*a = *it;
return true;
}
else
{
return false;
}
}
fgAIRPORT
fgAIRPORTS::search( const string& id ) const
{
fgAIRPORT a;
this->search( id, &a );
return a;
}
// Destructor
fgAIRPORTS::~fgAIRPORTS( void ) {
}