using System;

​

namespace _8_21

{

    public class Turtle

    {

        bool[, ] array = new bool[20, 20];

        int[][] commands;

        public Turtle(int[][] inputarray)

        {

            commands = inputarray;

        }

​

        bool pen = false;

        int dir = 11;

        int r = 19;

        int c = 0;

        public void PenUp()

        {

            pen = false;

        }

​

        public void PenDown()

        {

            pen = true;

        }

​

        public void ChangeRight()

        {

            dir++;

            if (dir > 14)

            {

                dir = 11;

            }

        }

​

        public void ChangeLeft()

        {

            dir--;

            if (dir < 11)

            {

                dir = 14;

            }

        }

​

        public void Move(int b)

        {

            if (pen == false)

                switch (dir)

                {

                    case 11:

                        c += b;

                        break;

                    case 12:

                        r += b;

                        break;

                    case 13:

                        c -= b;

                        break;

                    case 14:

                        r -= b;

                        break;

                }

​

            if (pen == true)

            {

                if (dir == 11)

                    for (int x = b; b > 0; b--)

                    {

                        array[r, c++] = true;

                    }

​

                if (dir == 12)

                    for (int x = b; b > 0; b--)

                    {

                        array[r++, c] = true;

                    }

​

                if (dir == 13)

                    for (int x = b; b > 0; b--)

                    {

                        array[r, c--] = true;

                    }

​

                if (dir == 14)

                    for (int x = b; b > 0; b--)

                    {

                        array[r--, c] = true;

                    }

            }

        }

​

        public void Draw()

        {

            for (var row = 0; row < array.GetLength(0); ++row)

            {

                for (var column = 0; column < array.GetLength(1); ++column)

                {

                    if (array[row, column] == true)

                    {

                        Console.Write('X');

                    }

​

                    if (array[row, column] == false)

                    {

                        Console.Write('.');

                    }

                }

​

                Console.WriteLine();

            }

        }

​

        public static void Main()

        {

            int[][] inputArray = {new int[]{2}, new int[]{5, 12}, new int[]{4}, new int[]{5, 12}, new int[]{1}, new int[]{4}, new int[]{5, 12}, new int[]{4}, new int[]{5, 12}, new int[]{2}, new int[]{6}, new int[]{9}, };

            Turtle newTurtle = new Turtle(inputArray);

            for (int row = 0; row < inputArray.GetLength(0); ++row)

            {

                var element = inputArray[row][0];

                {

                    switch (element)

                    {

                        case 1:

                            newTurtle.PenUp();

                            continue;

                        case 2:

                            newTurtle.PenDown();

                            continue;

                        case 3:

                            newTurtle.ChangeRight();

                            continue;

                        case 4:

                            newTurtle.ChangeLeft();

                            continue;

                        case 5:

                            newTurtle.Move(inputArray[row][1]);

                            continue;

                        case 6:

                            newTurtle.Draw();

                            continue;

                        case 9:

                            Console.WriteLine("Done");

                            break;

                    }

                }

            }

        }

    }

}