mdd/lib/include/OptimizerEvolutionary.h

#ifndef OPTIMIZEREVOLUTIONARY_H
#define OPTIMIZEREVOLUTIONARY_H
#include "OptimizerBase.h"

namespace mdd {
	class OptimizerEvolutionary : public OptimizerBase {
	protected:
		static int random_num(double min, double max, double inc = 1.0)
		{
			int range = (max - min)/inc + 1;
			return min + inc*(std::rand() % range);
		}

		struct Individual {
		public:
			json dna;
			double fitness;
		};

		Individual generateIndividual();
		Individual combine(Individual par1, Individual par2);

		std::vector<Individual> _children;
		Individual _best;
		int _min_generations;
		double _max_fitness;
		size_t _grow_generation;

		void evolve(std::vector<Individual> parents);
		void evaluate(size_t ignore_len = 0);
		json mutateGene(json limit, json seed = json());

	public:
		OptimizerEvolutionary(std::shared_ptr<IModule> module, size_t grow_generation = 20, double max_fitness = 0.0, int min_generations = -1);
		json update() override;
	};
}
#endif