1 // index.cxx -- routines to handle a unique/persistant integer polygon index
3 // Written by Curtis Olson, started February 1999.
5 // Copyright (C) 1999 Curtis L. Olson - curt@flightgear.org
7 // This program is free software; you can redistribute it and/or modify
8 // it under the terms of the GNU General Public License as published by
9 // the Free Software Foundation; either version 2 of the License, or
10 // (at your option) any later version.
12 // This program is distributed in the hope that it will be useful,
13 // but WITHOUT ANY WARRANTY; without even the implied warranty of
14 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 // GNU General Public License for more details.
17 // You should have received a copy of the GNU General Public License
18 // along with this program; if not, write to the Free Software
19 // Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
22 // (Log is kept at end of this file)
24 #include <Include/compiler.h>
33 static int poly_index;
34 static string poly_path;
37 // initialize the unique polygon index counter stored in path
38 bool poly_index_init( string path ) {
41 FILE *fp = fopen( poly_path.c_str(), "r" );
44 cout << "Error cannot open " << poly_path << endl;
49 fscanf( fp, "%d", &poly_index );
55 // increment the persistant counter and return the next poly_index
56 int poly_index_next() {
59 FILE *fp = fopen( poly_path.c_str(), "w" );
62 cout << "Error cannot open " << poly_path << " for writing" << endl;
65 fprintf( fp, "%d\n", poly_index );
74 // Revision 1.1 1999/02/25 21:30:24 curt