random-generator-definitions.h

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/* WOSS - World Ocean Simulation System -
 * 
 * Copyright (C) 2009 2025 Federico Guerra
 * and regents of the SIGNET lab, University of Padova
 *
 * Author: Federico Guerra - WOSS@guerra-tlc.com
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation;
 *
 * 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */ 
 
#ifndef RANDOM_GENERATOR_DEFINITIONS_H
#define RANDOM_GENERATOR_DEFINITIONS_H 
 
 
#include <memory>
 
namespace woss {
 
  class RandomGenerator {
 
    public:
 
    RandomGenerator( int s = 0 ) : seed(s), initialized(false) { }
 
    virtual ~RandomGenerator() = default;
 
    RandomGenerator(const RandomGenerator& copy) = default;
 
    RandomGenerator(RandomGenerator&& tmp) = default;
    
    RandomGenerator& operator=(const RandomGenerator& copy) = default;
 
    RandomGenerator& operator=(RandomGenerator&& tmp) = default;
    
    virtual std::unique_ptr<RandomGenerator> create( int seed ) const { return std::make_unique<RandomGenerator>(seed); }
 
    virtual std::unique_ptr<RandomGenerator> clone() const { return std::make_unique<RandomGenerator>(*this); }
 
    virtual bool isValid() const { return initialized; }
 
    virtual void setSeed( int s ) { seed = s; }
 
    virtual int getSeed() const { return seed; }
 
    virtual void initialize();
 
    virtual double getRand() const;
 
    virtual int getRandInt() const;
 
    protected:
 
    int seed = 0;
    bool initialized = false;
 
  };
 
}
 
#endif /* RANDOM_GENERATOR_DEFINITIONS_H */