New class RouletteWheel !

RouletteWheel.h

@@ -0,0 +1,68 @@
+
+
+
+//
+#pragma once
+
+
+//
+#include <vector>
+#include <mutex>
+#include <memory>
+
+
+//
+namespace BitEvolver
+{
+	//
+	class RouletteWheel
+	{
+		//
+		public:
+			
+			//
+			RouletteWheel();
+			
+			//
+			void Reset();
+			
+			//
+			void ClearChromosomes();
+			void SetChromosomes(std::vector<std::shared_ptr<class Chromosome>> _chromosomes);
+			void AddChromosome(std::shared_ptr<class Chromosome> _chromosome);
+			void AddChromosomes(std::vector<std::shared_ptr<class Chromosome>> _chromosomes);
+			
+			//
+			std::shared_ptr<Chromosome> Spin();
+			
+		//
+		private:
+			
+			//
+			std::shared_ptr<class Random> random;
+			
+			//
+			std::vector<std::shared_ptr<class Chromosome>> chromosomes;
+			std::recursive_mutex chromosomes_mutex;
+			bool chromosomes_need_sorting;
+			//
+			std::vector<std::pair<double,std::shared_ptr<class Chromosome>>> wheel_slots;
+			bool slots_need_population;
+			
+			
+			//
+			void Instantiate();
+			
+			//
+			std::vector<std::pair<double, std::shared_ptr<class Chromosome>>> GetNormalizedChromosomeFitness();
+			void SortChromosomes();
+			void PopulateSlots();
+			
+			//
+			void ChromosomesChanged();
+			
+	};
+};
+
+
+