Simple image redactor

Redactor.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

class Redactor
{
    static void Main(string[] args)
    {
        Console.Title = "Simple image redactor";

        // drawPalette();
        Console.SetCursorPosition(0, 50);
        Console.ForegroundColor = ConsoleColor.Blue;
        Console.Clear();

        int x = 20;
        int y = 20;
        int draw_color = 4;
        int back_color = 1;

        bool writeMode = false;

        int old_color = back_color, old_y = y, old_x = x;

        int[][] img = makeFill(79, 25, 1);

        do
        {

            // update image
            if (writeMode)
            {
                img[0][0] = 14;
            }
            else
            {
                img[0][0] = 10;
            }

            img[x][y] = draw_color;

            // draw
            Console.Clear();
            draw(img);
            Console.SetCursorPosition(0, 0);

            // restore
            if (writeMode) { }
            else
            {
                img[old_x][old_y] = old_color;
            }

            // listen event
            var keyPressed = Console.ReadKey();

            if (keyPressed.Key == ConsoleKey.LeftArrow)
            {
                x -= 1;
            }
            else if (keyPressed.Key == ConsoleKey.RightArrow)
            {
                x += 1;
            }
            else if (keyPressed.Key == ConsoleKey.UpArrow)
            {
                y -= 1;
            }
            else if (keyPressed.Key == ConsoleKey.DownArrow)
            {
                y += 1;
            }
            else if (keyPressed.Key == ConsoleKey.Spacebar)
            {
                writeMode = !writeMode;
            }

            // store data
            old_color = img[x][y];
            old_x = x;
            old_y = y;

        } while (true);

        Console.ReadKey();
    }
    static void drawPalette()
    {
        Console.WriteLine(" == PALETTE == ");
        for (int i = 0; i < 16; i++)
        {
            if (i < 10) { Console.Write("      "); }
            else { Console.Write("     "); }
            Console.Write(i);
            Console.Write(":");
            Console.Write(intToChar(i));
            Console.WriteLine(":");
            Console.WriteLine();
        }
    }
    static int[][] makeFill(int width, int height, int color)
    {
        int[][] img = new int[width][];
        for (int i = 0; i < width; i++)
        {
            img[i] = new int[height];
            for (int j = 0; j < height; j++)
            {
                img[i][j] = color;
            }
        }
        return img;
    }
    static void draw(int[][] img)
    {
        int width = img.Length;
        int height = img[0].Length;

        for (int j = 0; j < height; j++)
        {
            for (int i = 0; i < width; i++)
            {
                Console.Write(intToChar(img[i][j]));
            }
            Console.WriteLine();
        }
    }
    static char intToChar(int i)
    {
        char c = (char)0;
        if (i == 00)
        {
            c = ' ';
        }
        else if (i == 01)
        {
            c = '░';
        }
        else if (i == 02)
        {
            c = '▒';
        }
        else if (i == 03)
        {
            c = '▓';
        }

        else if (i == 04)
        {
            c = '█';
        }
        else if (i == 05)
        {
            c = '│';
        }

        else if (i == 06)
        {
            c = '┌';
        }
        else if (i == 07)
        {
            c = '┐';
        }
        else if (i == 08)
        {
            c = '└';
        }
        else if (i == 09)
        {
            c = '┘';
        }

        else if (i == 10)
        {
            c = '─';
        }
        else if (i == 11)
        {
            c = '┴';
        }
        else if (i == 12)
        {
            c = '┬';
        }
        else if (i == 13)
        {
            c = '├';
        }
        else if (i == 14)
        {
            c = '┼';
        }
        else if (i == 15)
        {
            c = '┤';
        }
        /*

    0	1	2	3	4	5	6	7	8	9	A	B	C	D	E	F

B0	 	░	▒	▓	│	┤	╡	╢	╖	╕	╣	║	╗	╝	╜	╛	┐
C0	 	└	┴	┬	├	─	┼	╞	╟	╚	╔	╩	╦	╠	═	╬	╧
D0	 	╨	╤	╥	╙	╘	╒	╓	╫	╪	┘	┌	█	▄	▌	▐	▀

         */
        return c;
    }
}