114 lines
2.3 KiB
C++
114 lines
2.3 KiB
C++
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//
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#pragma once
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//
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#include "BitEvolver/Includes.h"
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//
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#include <memory>
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#include <vector>
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#include <mutex>
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//
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namespace BitEvolver
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{
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//
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class Population
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{
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//
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public:
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//
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Population();
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//
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void Reset();
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//
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void ClearPopulation();
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void InitRandomPopulation(int _population_size, int _bit_length);
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void RandomizePopulation(int _bit_length);
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//
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void PopulationChanged();
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//
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std::vector<std::shared_ptr<class Chromosome>> GetChromosomes();
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void GetChromosomes(std::shared_ptr<std::vector<std::shared_ptr<class Chromosome>>> _chromosomes);
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std::shared_ptr<class Chromosome> GetChampion();
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//
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double GetAverageFitness();
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double GetAverageFitness(std::vector<std::shared_ptr<class Chromosome>> _chromosomes);
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//
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void SetCrossoverPoint(double p);
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double GetCrossoverPoint();
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void SetCrossoverType(Enums::CrossoverType t);
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Enums::CrossoverType GetCrossoverType();
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//
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void SetMutationRate(double r);
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double GetMutationRate();
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//
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void Evolve();
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int GetEvolutionNumber();
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//
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void PrintPopulation();
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void PrintPopulation(std::vector<std::shared_ptr<class Chromosome>> _chromosomes);
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// Constants
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const static int DEFAULT_POPULATION_SIZE = 100;
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const static int DEFAULT_MUTATION_RATE = 0.01;
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//
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const static Enums::CrossoverType DEFAULT_CROSSOVER_TYPE = Enums::CrossoverType::Sexual;
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const static int DEFAULT_CROSSOVER_POINT = 0.7;
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//
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private:
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//
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std::shared_ptr<class Random> random;
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std::shared_ptr<class Breeder> breeder;
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//
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std::vector<std::shared_ptr<class Chromosome>> chromosomes;
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int population_size;
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bool population_needs_sorting;
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Enums::CrossoverType crossover_type;
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double crossover_point;
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double mutation_rate;
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int evolution_number;
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//
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std::mutex breed_mutex;
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//
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void InitRandomGenerator();
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void InitBreeder();
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//
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void EnsureSortedPopulation();
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//
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void BreedNewPopulation(std::shared_ptr<std::vector<std::shared_ptr<Chromosome>>> population_new, int size);
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void BreedNewPopulation_Thread(std::shared_ptr<std::vector<std::shared_ptr<Chromosome>>> population_new, int size);
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//
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std::shared_ptr<Chromosome> BreedChild();
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std::shared_ptr<Chromosome> PickChromosomeForBreeding();
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//
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int GetThreadCountSuggestion();
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};
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};
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