110 lines
2.6 KiB
C++
110 lines
2.6 KiB
C++
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//
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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/general.h>
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#include <zlib/zlib.h>
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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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fgGENERAL *g;
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char path[256], gzpath[256], line[256];
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char id[5];
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double lon, lat, elev;
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gzFile f;
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g = &general;
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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, g->root_dir);
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strcat(path, "/Scenery/");
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strcat(path, "Airports");
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strcpy(gzpath, path);
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strcat(gzpath, ".gz");
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// first try "path.gz"
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if ( (f = gzopen(gzpath, "rb")) == NULL ) {
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// next try "path"
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if ( (f = gzopen(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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size = 0;
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while ( gzgets(f, line, 250) != NULL ) {
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// printf("%s", line);
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sscanf( line, "%s %lf %lf %lfl\n", id, &lon, &lat, &elev );
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strcpy(airports[size].id, id);
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airports[size].longitude = lon;
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airports[size].latitude = lat;
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airports[size].elevation = elev;
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size++;
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}
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gzclose(f);
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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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fgAIRPORT a;
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int i;
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for ( i = 0; i < size; i++ ) {
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if ( strcmp(airports[i].id, id) == 0 ) {
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return(airports[i]);
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}
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}
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strcpy(a.id, "none");
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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 1.1 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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