using System;

public class Program

{

    public static void Main()

    {

            var n = 5;

            var matrix = new int[n, n];

            var matrix2 = new int[n, n];

​

            Random rnd = new Random();      

            var r = rnd.NextDouble();

​

            //Populate with noise

            for (var y = 0; y < n; y++)

            {

                for (var x = 0; x < n; x++)

                {

                    if(rnd.NextDouble() < 0.4)

                    {

                        matrix[x, y] = 1;

                    }

                    else if(rnd.NextDouble() < 0.3)

                    {

                        matrix[x, y] = 2;

                    }

                    else

                    {

                        matrix[x, y] = 0;

                    }

                }

            }//Populate with noise

            //Generation 1

            for (var y = 0; y < n; y++)

            {

                for (var x = 0; x < n; x++) 

                {

                    if(x == n - 1)

                    {

                        Console.Write("{0}", matrix[x,y].ToString());

                    }

                    else

                    {

                        Console.Write("{0},", matrix[x,y].ToString());

                    }

​

                }

                Console.WriteLine("");          

            }

            Console.WriteLine("");//Generation 1

            Console.WriteLine("");//Generation 1

            LandDeveloper(n, matrix, matrix2);

//##########################################################################

    }//public static void Main()

    public static void LandDeveloper(int n, int[,] matrix, int[,] matrix2)

    {

        for (var y = 0; y < n - 1; y++)

        {       

            for (var x = 0; x < n - 1; x++)

            {           

                if(x > 0 && y > 0)

                {

                    int count0 = 0;

                    int count1 = 0;

                    int count2 = 0;

                    //Loops will check in 8 directions around cell

                    for(var a = -1; a < 2; a++)

                    {

                        for(var b = -1; b < 2; b++)

                        {

                            if(matrix[x, y] != 0 && matrix[x+a, y+b] == 0)//Water looks for water

                            {

                                count0++;

                            }

                            else if(matrix[x, y] == 1 && matrix[x+a, y+b] == 0)//Land1 looks for water

                            {

                                count1++;

                            }

                            else if(matrix[x, y] == 2 && matrix[x+a, y+b] == 1)//Land2 looks for Land1

                            {

                                count2++;

                            }

                        }//for(var b = -1; b < 2; b++)

                    }//for(var a = -1; a < 2; a++)

                    Random rnd2 = new Random();     

                    var r2 = rnd2.NextDouble();

                    //Adding water areas

                    if(count0 > 0 && r2 < 0.2)

                    {

                        matrix2[x, y] = 0;

                    }

                    else

                    {

                        matrix2[x, y] = matrix[x, y];

                    }

                    Console.WriteLine("");

                }//if(x > 0 && y > 0)

            }//for (var x = 0; x < n - 1; x++)

        }//for (var y = 0; y < n - 1; y++)

        //Generation 1

        Console.WriteLine("");

        for(var y = 0; y < n; y++)

        {       

            for (var x = 0; x < n; x++) 

            {

                if(x == n - 1)

                {

                    Console.Write("{0}", matrix2[x,y].ToString());

                }

                else

                {

                    Console.Write("{0},", matrix2[x,y].ToString());

                }

            }

            Console.WriteLine("");

        }

    }//LandDeveloper(int n, int[,] matrix, int[,] matrix2)

}//public class Program