randomgenerator.h

/********************************************************************************
 *  FARSA Genetic Algorithm Library                                             *
 *  Copyright (C) 2007-2008 Gianluca Massera <emmegian@yahoo.it>                *
 *                                                                              *
 *  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 St, Fifth Floor, Boston, MA  02110-1301  USA  *
 ********************************************************************************/

#ifndef RANDOMGENERATOR_H
#define RANDOMGENERATOR_H

#include "utilitiesconfig.h"

namespace farsa {

class RandomGenerator;
class RandomGeneratorPrivate;

extern FARSA_UTIL_API RandomGenerator* globalRNG;

class FARSA_UTIL_API RandomGenerator {
public:
    RandomGenerator( int seed = 0 );
    ~RandomGenerator();
    void setSeed( int seed );
    int seed();
    bool getBool( double trueProbability );
    int getInt( int min, int max );
    double getDouble( double min, double max );
    double getGaussian( double var, double mean = 0.0 );

private:
    RandomGeneratorPrivate* prive;
    int seedv;
};

} // end namespace farsa

#endif