GEPChromosomeCrsOnePoint.cpp

#include "GEPChromosomeCrsOnePoint.h"
 
namespace GEP{
    void GEPChromosomeCrsOnePoint::registerParameters(StateP state)
    {
        myGenotype_->registerParameter(state, "crx.onepoint", (voidP) new double(0), ECF::DOUBLE);
    }
 
 
    bool GEPChromosomeCrsOnePoint::initialize(StateP state)
    {
        voidP sptr = myGenotype_->getParameterValue(state, "crx.onepoint");
        probability_ = *((double*)sptr.get());
        return true;
    }
 
    bool GEPChromosomeCrsOnePoint::mate(GenotypeP gen1, GenotypeP gen2, GenotypeP child){
        // get the genotype from the parents and the child
        GEPChromosome* p1 = (GEPChromosome*)(gen1.get());
        GEPChromosome* p2 = (GEPChromosome*)(gen2.get());
        GEPChromosome* ch = (GEPChromosome*)(child.get());
        ch->clear();
        // select a point on which the crossover operator will be applied
        uint bitCrs = state_->getRandomizer()->getRandomInteger(0, (int)p1->size() - 1);
        ECF_LOG(state_, 5, "Performing One-Pt crossover at node (" + uint2str(bitCrs) + ")...");
        // Copy the nodes from one parent until the crossover point, then the nodes from the other parent until the end
        switch (state_->getRandomizer()->getRandomInteger(0, 1)) {
        case 0: for (uint i = 0; i < bitCrs; i++) {
            ch->push_back(static_cast<Tree::NodeP> (new Tree::Node((p1->at(i)))));
        }
                for (uint i = bitCrs; i < p2->size(); i++) {
                    ch->push_back(static_cast<Tree::NodeP> (new Tree::Node((p2->at(i)))));
                }
                break;
        case 1: for (uint i = 0; i < bitCrs; i++) {
            ch->push_back(static_cast<Tree::NodeP> (new Tree::Node((p2->at(i)))));
        }
                for (uint i = bitCrs; i < p1->size(); i++) {
                    ch->push_back(static_cast<Tree::NodeP> (new Tree::Node((p1->at(i)))));
                }
        }
 
        return true;
    }
}