Add Generation

Some more complex algorithms are not yet implemented.

src/Generation.hpp

@@ -0,0 +1,57 @@
+#pragma once
+
+#include <random>
+#include <vector>
+#include "Chromosome.hpp"
+#include "Fitness.hpp"
+
+
+
+class Generation
+{
+public:
+	static size_t size;
+	static size_t living;
+	static Fitness* fitness;
+	static std::mt19937_64* re;
+	
+	Generation();
+	
+	enum CullType
+	{
+		CUTOFF,
+		ROULETTE
+	};
+	
+	void updateFitness();
+	void cull(CullType algorithm=Generation::ROULETTE);
+	void reproduce(float crossover=0.5);  // how often a child is the result of two parents,
+	                                      // and not simply mutation.
+	
+	struct Individual
+	{
+// 		Individual(Chromosome& father, Chromosome& mother) : chromosome(father, mother) {}
+		
+		Chromosome chromosome;
+		unsigned long long fitness = 0;
+		bool fitnessEvaluated = false;
+		bool alive = true;
+	};
+	
+	std::vector<Individual> individuals;
+	
+private:
+	// all of the culling algorithms can assume:
+	//  - sorted array
+	//  - alive flag set to true on all individuals
+	void cullCutoff();
+	void cullRoulette();
+	
+	// pool of Chromosomes
+	// sort pool?
+	// min/max/median
+	// extract stats
+	// calculate fitness
+	// cull/selection
+	// render full generation? No
+};