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flightgear/src/Airports/runways.hxx
2006-02-21 01:16:04 +00:00

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3.5 KiB
C++

// runways.hxx -- a simple class to manage airport runway info
//
// Written by Curtis Olson, started August 2000.
//
// 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
// 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
//
// $Id$
#ifndef _FG_RUNWAYS_HXX
#define _FG_RUNWAYS_HXX
#ifndef __cplusplus
# error This library requires C++
#endif
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <simgear/compiler.h>
#include STL_STRING
#include <map>
SG_USING_STD(string);
SG_USING_STD(multimap);
struct ltstr {
bool operator()(const string& s1, const string& s2) const {
return s1 < s2;
}
};
struct FGRunway {
string _id;
string _rwy_no;
string _type; // runway / taxiway
double _lon;
double _lat;
double _heading;
double _length;
double _width;
double _displ_thresh1;
double _displ_thresh2;
double _stopway1;
double _stopway2;
string _lighting_flags;
int _surface_code;
string _shoulder_code;
int _marking_code;
double _smoothness;
bool _dist_remaining;
};
typedef multimap < string, FGRunway, ltstr > runway_map;
typedef runway_map::iterator runway_map_iterator;
typedef runway_map::const_iterator const_runway_map_iterator;
class FGRunwayList {
private:
runway_map runways;
runway_map_iterator current;
public:
// Constructor (new)
FGRunwayList() {}
// Destructor
~FGRunwayList();
// add an entry to the list
void add( const string& id, const string& rwy_no,
const double longitude, const double latitude,
const double heading, const double length, const double width,
const double displ_thresh1, const double displ_thresh2,
const double stopway1, const double stopway2,
const string& lighting_flags, const int surface_code,
const string& shoulder_code, const int marking_code,
const double smoothness, const bool dist_remaining );
// search for the specified apt id.
// Returns true if successful, otherwise returns false.
// On success, runway data is returned thru "runway" pointer.
// "runway" is not changed if "apt" is not found.
bool search( const string& aptid, FGRunway* runway );
bool search( const string& aptid, const string& rwyno, FGRunway* runway );
// DCL - search for runway closest to desired heading in degrees
bool search( const string& aptid, const int hdg, FGRunway* runway );
// Return the runway number of the runway closest to a given heading
string search( const string& aptid, const int tgt_hdg );
FGRunway search( const string& aptid );
bool next( FGRunway* runway );
FGRunway next();
};
#endif // _FG_RUNWAYS_HXX