random-generator-definitions.h

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/* WOSS - World Ocean Simulation System -
 * 
 * Copyright (C) 2009 Federico Guerra
 * and regents of the SIGNET lab, University of Padova
 *
 * Author: Federico Guerra - federico@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
 */ 
 
/*
 * This software has been developed by Federico Guerra and SIGNET lab,
 * University of Padova, in collaboration with the NATO Centre for 
 * Maritime Research and Experimentation (http://www.cmre.nato.int ; 
 * E-mail: pao@cmre.nato.int), whose support is gratefully acknowledged.
 */
 
 
#ifndef RANDOM_GENERATOR_DEFINITIONS_H
#define RANDOM_GENERATOR_DEFINITIONS_H 
 
 
#include <cstdlib>
#include <cassert>
 
 
namespace woss {
  
  
  class RandomGenerator {
  
  
    public:
      
    
    RandomGenerator( int s = 0 ) : seed(s), initialized(false) { }
    
    virtual ~RandomGenerator() { }
    
    
    virtual RandomGenerator* create( double seed ) { return new RandomGenerator(seed); }
         
    virtual RandomGenerator* clone() const { return new 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;
    
    
    bool initialized;
    
    
  };
 
  
}
 
 
#endif /* RANDOM_GENERATOR_DEFINITIONS_H */