125 lines
3.1 KiB
C++
125 lines
3.1 KiB
C++
//
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// airports.cxx -- a really simplistic class to manage airport ID,
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// lat, lon of the center of one of it's runways, and
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// elevation in feet.
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//
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// Written by Curtis Olson, started April 1998.
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//
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// Copyright (C) 1998 Curtis L. Olson - curt@me.umn.edu
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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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// (Log is kept at end of this file)
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#include <string.h>
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#include <Debug/fg_debug.h>
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#include <Include/fg_zlib.h>
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#include <Main/options.hxx>
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#include "airports.hxx"
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// Constructor
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fgAIRPORTS::fgAIRPORTS( void ) {
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}
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// load the data
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int fgAIRPORTS::load( char *file ) {
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fgAIRPORT a;
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fgOPTIONS *o;
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char path[256], fgpath[256], line[256];
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char id[5];
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string id_str;
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fgFile f;
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o = ¤t_options;
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// build the path name to the ambient lookup table
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path[0] = '\0';
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strcat(path, o->fg_root);
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strcat(path, "/Scenery/");
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strcat(path, "Airports");
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strcpy(fgpath, path);
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strcat(fgpath, ".gz");
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// first try "path.gz"
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if ( (f = fgopen(fgpath, "rb")) == NULL ) {
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// next try "path"
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if ( (f = fgopen(path, "rb")) == NULL ) {
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fgPrintf(FG_GENERAL, FG_EXIT, "Cannot open file: %s\n", path);
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}
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}
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while ( fggets(f, line, 250) != NULL ) {
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// printf("%s", line);
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sscanf( line, "%s %lf %lf %lfl\n", id, &a.longitude, &a.latitude,
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&a.elevation );
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id_str = id;
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airports[id_str] = a;
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}
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fgclose(f);
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return(1);
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}
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// search for the specified id
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fgAIRPORT fgAIRPORTS::search( char *id ) {
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map < string, fgAIRPORT, less<string> > :: iterator find;
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fgAIRPORT a;
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find = airports.find(id);
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if ( find == airports.end() ) {
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// not found
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a.longitude = a.latitude = a.elevation = 0;
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} else {
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a = (*find).second;
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}
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return(a);
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}
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// Destructor
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fgAIRPORTS::~fgAIRPORTS( void ) {
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}
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// $Log$
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// Revision 1.5 1998/05/29 20:37:22 curt
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// Tweaked material properties & lighting a bit in GLUTmain.cxx.
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// Read airport list into a "map" STL for dynamic list sizing and fast tree
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// based lookups.
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//
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// Revision 1.4 1998/05/13 18:26:25 curt
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// Root path info moved to fgOPTIONS.
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//
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// Revision 1.3 1998/05/06 03:16:24 curt
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// Added an averaged global frame rate counter.
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// Added an option to control tile radius.
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//
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// Revision 1.2 1998/04/28 21:42:50 curt
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// Wrapped zlib calls up so we can conditionally comment out zlib support.
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//
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// Revision 1.1 1998/04/25 15:11:11 curt
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// Added an command line option to set starting position based on airport ID.
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//
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//
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