using System;
using System.Collections.Generic;
using System.IO;
 
namespace Neuroweb
{
    public class Neuron 
    {
        private bool change = false;
        private int lastY = -1;
        private int pointCount = 0;
        private string FileName = "";
        private StreamReader sr;
        private FileStream file;
        private StreamWriter sw;
        private char symbol;
        public List<double> w;
 
        public int LastY
        {
            get
            {
                return this.lastY;
            }
        }
 
        public char Symbol
        {
            get
            {
                return this.symbol;
            }
        }
 
        public int PointCount
        {
            get
            {
                return this.pointCount;
            }
        }
 
        public Neuron(char RecognizingSymbol, int PointCount)
        {
            this.symbol = RecognizingSymbol;
            this.SetFileName();
            this.pointCount = PointCount + 1;
            this.w = new List<double>(this.pointCount);
            try
            {
                this.file = new FileStream(this.FileName, FileMode.Open);
                this.sr = new StreamReader((Stream)this.file);
                string s;
                while ((s = this.sr.ReadLine()) != null)
                {
                    double result;
                    double.TryParse(s, out result);
                    this.w.Add(result);
                }
                this.sr.Close();
                this.file.Close();
            }
            catch
            {
                this.w.Clear();
                this.change = true;
                this.FillW();
            }
            if (this.w.Count >= this.pointCount)
                return;
            this.w.Clear();
            this.change = true;
            this.FillW();
        }
 
        private void SetFileName()
        {
            this.FileName = this.symbol.ToString() + ".txt";
        }
 
        private void FillW()
        {
            Random random = new Random(DateTime.Now.Millisecond);
            for (int index = 0; index < this.w.Capacity; ++index)
                this.w.Add(random.NextDouble() * 0.3 * (random.Next(2) == 1 ? -1.0 : 1.0));
        }
 
        public void Correct(List<byte> x, int delta, double speed)
        {
            this.change = true;
            for (int index = 0; index < this.w.Count; ++index)
                this.w[index] = this.w[index] + speed * (double)delta * (double)x[index];
        }
 
        private double S(List<byte> x)
        {
            double num = 0.0;
            for (int index = 0; index < x.Count; ++index)
                num += this.w[index] * (double)x[index];
            return num;
        }
 
        public double Y(List<byte> x)
        {
            double num = this.S(x);
            if (num >= 0.0)
                return num;
            else
                return 0.0;
        }
 
        public void Save()
        {
            if (!this.change)
                return;
            this.file = File.Create(this.FileName);
            this.sw = new StreamWriter((Stream)this.file);
            foreach (double num in this.w)
            {
                this.sw.WriteLine(num.ToString());
                ((TextWriter)this.sw).Flush();
            }
            this.sw.Close();
            this.file.Close();
        }
    }
}

public void Correct(List<byte> x, int delta, double speed)
        {
            this.change = true;
            for (int index = 0; index < this.w.Count; ++index)
                this.w[index] = this.w[index] + speed * (double)delta * (double)x[index];
        }
 
        private double S(List<byte> x)
        {
            double num = 0.0;
            for (int index = 0; index < x.Count; ++index)
                num += this.w[index] * (double)x[index];
            return num;