NN.cpp

#include<vector>
#include<cmath>
#include<cassert>
#include<iostream>
#include "NN.h"
#include<time.h>
#include<stdlib.h>
using namespace std;


 Neuron::Neuron(unsigned numOutputs, unsigned myIndex)
{
	for (unsigned c = 0; c < numOutputs; ++c) {

		m_outputWeights.push_back(connection());
		m_outputWeights[c].weight = ((rand() / double(RAND_MAX))*2.0f-1.0f);
		m_outputWeights[c].deltaweight = 0.0f;


	}

	m_myIndex = myIndex;
}

void Neuron::feedForward(Layer &prevLayer)
{
	double sum = 0.0;
	for (unsigned n = 0; n < prevLayer.size(); ++n) {
		sum += prevLayer[n].getOutputVal() *
			prevLayer[n].m_outputWeights[m_myIndex].weight;
	}
	m_outputVal = sum;
}



double Neuron::getOutputVal()
{
	return m_outputVal;
}
void Neuron::setOutputVal(double n)
{
	m_outputVal = n;
}




int Neuron::getIndex()
{
	return m_myIndex;
}

void Neuron::NaivelyUpdateWeights()
{
	for(int i=0;i<m_outputWeights.size();i++)
	{
		double oldDeltaWeight = m_outputWeights[i].deltaweight;
		m_outputWeights[i].weight += oldDeltaWeight;
	}
}