From 7e8dce7224214cbb82e9191917de9f234fe38cb7 Mon Sep 17 00:00:00 2001
From: Justin Worthe <justin.worthe@gmail.com>
Date: Sat, 1 Aug 2015 14:35:58 +0200
Subject: Implemented structure of network

---
 src/brain/neuron.cpp | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)
 create mode 100644 src/brain/neuron.cpp

(limited to 'src/brain/neuron.cpp')

diff --git a/src/brain/neuron.cpp b/src/brain/neuron.cpp
new file mode 100644
index 0000000..8c2e47c
--- /dev/null
+++ b/src/brain/neuron.cpp
@@ -0,0 +1,24 @@
+#include "brain/neuron.h"
+#include <cmath>
+
+Neuron::Neuron(int id)
+    :NeuralNode('n', id)
+{
+}
+
+double Neuron::sigmoid(double input) const
+{
+    double slope = 4.924273;
+    double constant = 2.4621365;
+    return (1/(1+(std::exp(-(slope*input)))));
+}
+
+double Neuron::activation() const
+{
+    double activationSum = 0;
+    for (auto link : _inputLinks)
+    {
+	activationSum += link->weightedActivation();
+    }
+    return sigmoid(activationSum);
+}
-- 
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