54 lines
1.8 KiB
C++
54 lines
1.8 KiB
C++
#include "KolchShindyalBreedingStrategy.h"
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#include "../../../../processor/Settings.h"
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#include "../../../Phenotype.h"
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#include <algorithm>
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#include <iostream>
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#include <cstdlib>
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#include <ctime>
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void KolchShindyalBreedingStrategy::breed(Population *_pop){
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// N = const
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srand((unsigned int)time(NULL));
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// Âûáèðàåì ëóçåðîâ è óäàëÿåì èõ
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AsexualPopulation* pop = dynamic_cast<AsexualPopulation*>(_pop);
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if(pop == NULL){
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std::cerr<<"Wrong dynamic cast to AsexualPopulation\n";
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return;
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}
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std::sort(pop->individs.begin(), pop->individs.end(), compareOnFitness);
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int inds = pop->individs.size();
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// Ïî èäåå, ñìåðòíîñòü íàäî ìîäåëèðîâàòü â ðàçäåëå SelectionAll
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// à òóò íàäî êàêîé-òî ìåõàíèçì äèôôåðåíöèðîâàííîé ïëîäîâèòîñòè
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// îïèñàòü
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float deathRate = 0.01f; //Settings::DeathRate
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int toDie = int (inds * deathRate);
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std::vector<Individual*>::iterator start = pop->individs.begin();
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std::vector<Individual*>::iterator end = pop->individs.begin()+toDie;
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//advance(end,toDie);
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for(std::vector<Individual*>::iterator it = start; it != end; it++){
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delete *it;
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}
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pop->individs.erase(start, end);
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std::cout<<"PopulationBreedingStrategy::breed: "<<toDie<<" individs have died\n";
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// Ðîæàåì íîâûõ îñîáåé
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float birthRate = Settings::BirthRate;//0.02f;
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int toBorn = int (inds * birthRate);
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inds = pop->individs.size();
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srand((unsigned int)time(NULL));
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for(int i = 0; i < toBorn; i++) {
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int male = rand() % inds;
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int female = rand() % inds;
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female = (female != male ? female : (female + 1) % inds);
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Individual* ind = new Individual(*(pop->individs.at(male)), *(pop->individs.at(female)));
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// Ìóòàöèÿ çäåñü !!!
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// Çäåñü ïî íåîáõîäèìîñòè äîáàâëÿåì íàñòðîéêè ñðåäû è ò.ä.
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pop->individs.push_back(ind);
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}
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} |