Jeffrey

// Main.cs created with MonoDevelop
// Jeffrey
//
// To change standard headers go to Edit->Preferences->Coding->Standard Headers
//
using System;


namespace MatrizCaracol
{
    class MainClass
    {
        public static void Main(string[] args)
        {
            int rows, cuadrant;
            Cartesian cartesian;

            Console.Write("Please enter the number of rows: ");
            rows = Convert.ToInt32(Console.ReadLine());
            Console.Write("Please enter the number of the quadrant you want to look: ");
            cuadrant = Convert.ToInt32(Console.ReadLine());


            cartesian = new Cartesian(rows);
            cartesian.MakeSnailMatrix();
            cartesian.PrintMatrix((Quadrant)cuadrant);
            Console.Read();
        }
    }

    public enum Quadrant
    {
        I=1,
        II,
        III,
        IV
    }

    public class Cartesian
    {
        int[,] matrix;
        Quadrant[,] cuadrant;
        int content, rows;


        public Cartesian(int newRows)
        {
            matrix = new int[newRows,newRows];
            cuadrant = new Quadrant[newRows, newRows];
            this.rows = newRows;
            Resize(newRows);
            this.content = 0;
        }

        public void Resize(int newRows)
        {
            for(int i=0; i < newRows; i++)
            {
                for(int j=0; j < newRows; j++)
                {
                    this.matrix[i,j] = 0;
                    if(i < newRows/2 && j < newRows/2)
                        this.cuadrant[i,j] =  Quadrant.II;
                    else if(i < newRows/2 && j >= newRows/2)
                        this.cuadrant[i,j] = Quadrant.I;
                    else if(i >= newRows/2 && j < newRows/2)
                        this.cuadrant[i,j] = Quadrant.III;
                    else
                        this.cuadrant[i,j] = Quadrant.IV;
                }
            }
        }


        public int Content
        {
            get {return content;}
            set {this.content = value;}
        }

        public void MakeSnailMatrix()
        {
            int result = rows * rows;

                for(int i = 0; i < rows; i++)
                {
                // Left
                for(int j = rows-1; j >=0; j--)
                    {
                        if(matrix[rows-(i+1),j] == 0)
                            matrix[rows-(i+1),j] = result--;
                    }

                // Up
                    for(int j= rows - 1; j >= 0; j--)
                    {
                        if(matrix[j,i] == 0)
                            matrix[j,i] = result--;
                    }

                // Right
                    for(int j=0; j < rows; j++)
                    {
                        if(matrix[i,j] == 0)
                            matrix[i,j] = result--;
                    }

                // Down
                    for(int j=0; j < rows; j++)
                    {
                        if(matrix[j,rows-(i+1)] == 0)
                            matrix[j,rows-(i+1)] = result--;
                    }

                }
            }

        public void PrintMatrix(Quadrant cdt)
        {
            for(int i=0; i< rows; i++)
            {
                for(int j=0; j < rows; j++)
                {
                    if(this.cuadrant[i,j] == cdt)
                        Console.Write(String.Format("{0:d2} ", matrix[i,j]));
                }
                Console.WriteLine();
            }

        }
    }

}