Conway's Game of Life - A Rule Framework and Implementation

using System;
using gameOfLife.Framework;
using gameOfLife.Transition;

namespace gameOfLife.Program
{
    class Program
    {
        static void Main(string[] args)
        {
            string input = string.Empty;

            ITransition[] transitions = new ITransition[] { new Loneliness(), new OverCrowding(), new NextGeneration(), new Spawn() };

            while (!input.Equals("."))
            {
                input = Console.ReadLine();

                if (input.Contains(","))
                {
                    string[] xy = input.Split(',');
                    PatternOfCells.Instance.Cells.Add(new Cell(int.Parse(xy[0]), int.Parse(xy[1])));
                }
                else if (!input.Equals("."))
                {
                    Console.WriteLine("Invalid input - Enter comma separated coordinates (x, y) and '.' to end");
                }
            }

            PatternOfCells.Instance.ApplyTransitions(transitions);

            foreach (var cell in PatternOfCells.Instance.Cells)
            {
                Console.WriteLine("{0},{1}", cell.X, cell.Y);
            }

            Console.Read();
        }
    }
}