Page principale   Liste des namespaces   Hiérarchie des classes   Liste par ordre alphabétique   Liste des composants   Liste des fichiers   Membres des namespaces   Composants   Déclarations  

ExCRandomNumber.cpp

Aller à la documentation de ce fichier.
00001 /*
00002  * ExNihilo 3D Engine
00003  * 
00004  *  This program is free software; you can redistribute it and/or modify
00005  *  it under the terms of the GNU General Public License as published by
00006  *  the Free Software Foundation; either version 2 of the License, or
00007  *  (at your option) any later version.
00008  *
00009  *  This program is distributed in the hope that it will be useful,
00010  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
00011  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00012  *  GNU Library General Public License for more details.
00013  *
00014  *  You should have received a copy of the GNU General Public License
00015  *  along with this program; if not, write to the Free Software
00016  *  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
00017  *
00018  * Please read AUTHORS file !!!
00019  * 
00020  * $Id: ExCRandomNumber.cpp,v 1.11 2002/06/21 19:04:10 binny Exp $
00021  *
00022  */
00023 
00024 #include "ExCRandomNumber.h"
00025 
00026 int ExCRandomNumber::is_init = false;
00027 
00028 ExCRandomNumber::ExCRandomNumber () {
00029         if (! is_init) {
00030                 srand (time (NULL));
00031                 is_init = true;
00032         }
00033 }
00034 
00035 uint ExCRandomNumber::getInt (uint min, uint max) {
00036         uint value;
00037         uint v_tmp;
00038         if (max < min) {
00039                 v_tmp = min;
00040                 min = max;
00041                 max = v_tmp;
00042         }
00043         
00044         do {
00045                 value = (rand() % (max - min + 1)) + min;
00046         } while (value < min || value > max);
00047         
00048         return value;
00049 }
00050 
00051 float ExCRandomNumber::getFloat (float min, float max) {
00052         float value;
00053         float v_tmp;
00054         if (max < min) {
00055                 v_tmp = min;
00056                 min = max;
00057                 max = v_tmp;
00058         }
00059 
00060         do {
00061                 value = min + (float) getInt(0, (unsigned) ((max - min) * 1000)) / 1000;
00062         } while (value < min || value > max);
00063         
00064         return value;
00065 }

Généré le Tue Dec 10 18:18:10 2002 pour ExNihilo par doxygen1.3-rc1