create NEAT app repo

Genotype.h

@@ -0,0 +1,63 @@
+#ifndef __Genotype_h__
+#define __Genotype_h__
+
+#include <vector>
+
+#include "ConnectionGene.h"
+#include "NeuronGene.h"
+
+class Innovator;
+
+class Genotype
+{
+public:
+
+	// construct a new random genotype
+	Genotype(Innovator& innovator, int num_inputs, int num_outputs);
+	
+	// construct a new genotype via crossover
+	Genotype(const Genotype& mom, const Genotype& dad);
+
+	void Output();
+
+	int CalculateLayers();
+	
+	void SetFitness(float fitness);
+	float GetFitness() const;
+
+	void Mutate(Innovator& innovator);
+	
+	bool operator< (const Genotype& rhs) const;
+	
+	// calculate compatibility with another genotype
+	float GetCompatibility(const Genotype& genome) const;
+
+private:
+
+	// preturb weights
+	void MutateConnectionWeights();
+
+	// add a neuron
+	bool MutateAddNeuron(Innovator& innovator, int retries=100);
+
+	// add a connection
+	bool MutateAddConnection(Innovator& innovator, int retries=100);
+
+
+
+private:
+
+	friend class NeuralNetwork;
+
+	NeuronGene* GetNeuronByInnovation(int innovation); // todo could be a bool?
+	ConnectionGene* GetConnectionByNeuron(int from_neuron, int to_neuron);
+	bool IsRecurrent(int from_neuron, int to_neuron);
+
+	std::vector<NeuronGene>     Neurons;
+	std::vector<ConnectionGene> Connections;
+	
+	float Fitness;
+};
+
+#endif // __Genotype_h__
+