moeoSelectFromPopAndArch.h

// -*- mode: c++; c-indent-level: 4; c++-member-init-indent: 8; comment-column: 35; -*-

//-----------------------------------------------------------------------------
// moeoSelectFormPopAndArch.h
// (c) OPAC Team (LIFL), Dolphin Project (INRIA), 2007
/*
    This library...

    Contact: paradiseo-help@lists.gforge.inria.fr, http://paradiseo.gforge.inria.fr
 */
//-----------------------------------------------------------------------------

#ifndef MOEOSELECTONEFROMPOPANDARCH_H_
#define MOEOSELECTONEFROMPOPANDARCH_H_

#include <eoPop.h>
#include <utils/eoRNG.h>
#include <archive/moeoArchive.h>
#include <selection/moeoSelectOne.h>
#include <selection/moeoRandomSelect.h>

template < class MOEOT >
class moeoSelectFromPopAndArch : public moeoSelectOne < MOEOT >
{
public:

    moeoSelectFromPopAndArch (moeoSelectOne < MOEOT > & _popSelectOne, moeoSelectOne < MOEOT > _archSelectOne, moeoArchive < MOEOT > & _arch, double _ratioFromPop=0.5)
            : popSelectOne(_popSelectOne), archSelectOne(_archSelectOne), arch(_arch), ratioFromPop(_ratioFromPop)
    {}


    moeoSelectFromPopAndArch (moeoSelectOne < MOEOT > & _popSelectOne, moeoArchive < MOEOT > & _arch, double _ratioFromPop=0.5)
            : popSelectOne(_popSelectOne), archSelectOne(randomSelectOne), arch(_arch), ratioFromPop(_ratioFromPop)
    {}


    virtual const MOEOT & operator () (const eoPop < MOEOT > & pop)
    {
        if (arch.size() > 0)
            if (rng.flip(ratioFromPop))
                return popSelectOne(pop);
            else
                return archSelectOne(arch);
        else
            return popSelectOne(pop);
    }


    virtual void setup (const eoPop < MOEOT > & _pop)
    {
        popSelectOne.setup(_pop);
    }


private:

    moeoSelectOne < MOEOT > & popSelectOne;
    moeoSelectOne < MOEOT > & archSelectOne;
    moeoArchive < MOEOT > & arch;
    double ratioFromPop;
    moeoRandomSelect < MOEOT > randomSelectOne;

};

#endif /*MOEOSELECTONEFROMPOPANDARCH_H_*/

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