From e6ab4a8ed100d5d5b7611c74cf3ccd556f1f1d71 Mon Sep 17 00:00:00 2001
From: Paul Oliver <contact@pauloliver.dev>
Date: Thu, 29 Feb 2024 19:04:34 +0100
Subject: Initial commit

---
 include/HyperNeat/NeuralNet.hpp | 78 +++++++++++++++++++++++++++++++++++++++++
 1 file changed, 78 insertions(+)
 create mode 100644 include/HyperNeat/NeuralNet.hpp

(limited to 'include/HyperNeat/NeuralNet.hpp')

diff --git a/include/HyperNeat/NeuralNet.hpp b/include/HyperNeat/NeuralNet.hpp
new file mode 100644
index 0000000..7f4a81f
--- /dev/null
+++ b/include/HyperNeat/NeuralNet.hpp
@@ -0,0 +1,78 @@
+#ifndef __HYPERNEAT_NEURALNET_HPP__
+#define __HYPERNEAT_NEURALNET_HPP__
+
+#include <HyperNeat/Utils/Size.hpp>
+#include <HyperNeat/Utils/ValueMap.hpp>
+
+namespace hyperneat
+{
+    class Cppn;
+    class NeuralNetPrms;
+
+    class NeuralNet
+    {
+    public:
+        class Neuron;
+
+        NeuralNet() = default;
+
+        void create(Cppn& cppn, const NeuralNetPrms& nnPrms);
+        void clear();
+
+        size_t getInputsCount() const;
+        size_t getOutputsCount() const;
+        size_t getNeuronsCount() const;
+
+        const Vector<double*>& getInputs() const;
+        const Vector<double*>& getOutputs() const;
+        const Vector<Neuron>& getNeurons() const;
+
+        double getAverageActivation() const;
+
+        double& inputAt(size_t i);
+        double outputAt(size_t i) const;
+
+        void cycle();
+
+        class Neuron
+        {
+        public:
+            enum class Type {
+                INPUT, HIDDEN, OUTPUT
+            };
+
+            Neuron() = default;
+            Neuron(const Point& position, Type type, double bias);
+
+            void appendInput();
+            void flushOutput();
+
+            class Synapse
+            {
+            public:
+                Synapse() = default;
+                Synapse(Neuron* inputNeuron, double weight);
+
+                double* _input  = nullptr;
+                Neuron* _neuron = nullptr;
+                double  _weight = 0.0;
+            };
+
+            Vector<Synapse> _synapses;
+            Point           _position;
+            Type            _type        = Type::HIDDEN;
+            double          _bias        = 0.0;
+            double          _storedInput = 0.0;
+            double          _output      = 0.0;
+        };
+
+    private:
+        Vector<double*> _inputs;
+        Vector<double*> _outputs;
+        Vector<Neuron>  _neurons;
+
+        friend class Organism;
+    };
+}
+
+#endif
-- 
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