Mastermind Backup

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

namespace Mastermind_v2
{
    class Backend
    {
        public static string[] Randomizer()
        {
            Random r = new Random();
            var randomizedNumbers = new int[4];
            for (int i = 0; i < 4; i++)
            {
                randomizedNumbers[i] = r.Next(0, 6);
            }
            string[] newRandom = randomizedNumbers.Select(x => x.ToString()).ToArray();

            for (int i = 0; i < 4; i++)
            {
                newRandom[i] = newRandom[i].Replace("0", "red");
                newRandom[i] = newRandom[i].Replace("1", "blue");
                newRandom[i] = newRandom[i].Replace("2", "green");
                newRandom[i] = newRandom[i].Replace("3", "pink");
                newRandom[i] = newRandom[i].Replace("4", "cyan");
                newRandom[i] = newRandom[i].Replace("5", "yellow");
            }

            return newRandom;
        }

        static string[] Format(string rawInput)
        {
            //delar upp inputen i en ny array med varje färg på sin plats
            var newInput = rawInput.Split();

            //en liten funktion som fångar in fel
            //skapar en stringarray som returnernas om det blir något fel i inmatningen, t.ex om man skriver för många eller för få färger, eller om man stavar fel
            //
            var errorMessage = new string[] { "error", "", "", "" };
            if (newInput.Length != 4)
            {
                return errorMessage;
            }
            foreach (var word in newInput)
            {
                switch (word)
                {
                    case "red":
                    case "blue":
                    case "green":
                    case "pink":
                    case "cyan":
                    case "yellow":
                        break;
                    default:
                        return errorMessage;
                }
            }

            return newInput;
        }

        //en funktion som räknar antalet av en viss färg in
        static int CountColors(string color, string[] randomColors)
        {
            var amount =
                from colors in randomColors
                where colors == color
                select colors;
            int intAmount = Convert.ToInt32(amount.Count());
            return intAmount;
        }

        public static int[] CheckColors(string rawInput, string[] allRandomColors)
        {
            var input = Format(rawInput);

            //efter att ha formaterat inmatningen kollar den om det blivit något fel
            //foundError används senare när den returnerar ett resultat, 1 betyder att något gått fel och 0 betyder att allt funkar som det ska
            var foundError = 0;
            if (input[0] == "error")
            {
                foundError = 1;
            }

            //om det finns flera av samma färg i den slumpade sekvensen gör reducerar detta det till en av varje i en ny stringarray
            var random = allRandomColors.Distinct().ToArray();

            int trueCorrectColors = 0;
            int correctColors = 0;
            int correctPositions = 0;

            //kolla efter korrekta färger
            foreach (var randomColor in random)
            {
                foreach (var inputColors in input)
                {
                    //helt ärligt vet jag inte riktigt varför det här funkar, om man tar bort && correctColors < etc etc så funkar det inte
                    //så no touchy
                    while ((randomColor == inputColors) && correctColors < CountColors(randomColor, allRandomColors))
                    {
                        correctColors++;
                    }
                }
                trueCorrectColors += correctColors;
                correctColors = 0;
            }

            //kolla efter korrekta platser
            int counter = 0;
            foreach (var randomColor in allRandomColors)
            {
                if (randomColor == input[counter])
                {
                    correctPositions++;
                }
                counter++;
            }

            //räkna och returnera resultatet
            trueCorrectColors = Math.Abs(correctPositions - trueCorrectColors);
            return new int[] { correctPositions, trueCorrectColors, foundError };
        }
    }

    class Interface
    {
        static void Board(string input, int[] result)
        {
            //print # of correct positions
            Console.ForegroundColor = ConsoleColor.DarkRed;
            Console.CursorLeft = 38;
            Console.Write("" + result[0]);
            Console.ForegroundColor = ConsoleColor.Gray;
            Console.Write("  |  ");

            //print the written pegs
            var inputColors = input.Split();
            foreach (string word in inputColors)
            {
                switch (word)
                {
                    case "red":
                        Console.ForegroundColor = ConsoleColor.Red;
                        Console.Write("[*] ");
                        Console.ForegroundColor = ConsoleColor.Gray;
                        break;
                    case "blue":
                        Console.ForegroundColor = ConsoleColor.Blue;
                        Console.Write("[*] ");
                        Console.ForegroundColor = ConsoleColor.Gray;
                        break;
                    case "green":
                        Console.ForegroundColor = ConsoleColor.Green;
                        Console.Write("[*] ");
                        Console.ForegroundColor = ConsoleColor.Gray;
                        break;
                    case "pink":
                        Console.ForegroundColor = ConsoleColor.Magenta;
                        Console.Write("[*] ");
                        Console.ForegroundColor = ConsoleColor.Gray;
                        break;
                    case "cyan":
                        Console.ForegroundColor = ConsoleColor.Cyan;
                        Console.Write("[*] ");
                        Console.ForegroundColor = ConsoleColor.Gray;
                        break;
                    case "yellow":
                        Console.ForegroundColor = ConsoleColor.DarkYellow;
                        Console.Write("[*] ");
                        Console.ForegroundColor = ConsoleColor.Gray;
                        break;
                }
            }

            //print # of correct colors
            Console.Write(" |  ");
            Console.ForegroundColor = ConsoleColor.White;
            Console.Write(result[1]);
            Console.ForegroundColor = ConsoleColor.Gray;
            Console.Write("\n");
        }

        static void NewGame()
        {
            Console.Clear();
            Console.Write("\n" +
                "\n\n                                              Select difficulty" +
                "\n\n                                           [");
            Console.ForegroundColor = ConsoleColor.Green;
            Console.Write("EASY");
            Console.ForegroundColor = ConsoleColor.Gray;
            Console.Write("] [");
            Console.ForegroundColor = ConsoleColor.DarkYellow;
            Console.Write("MEDIUM");
            Console.ForegroundColor = ConsoleColor.Gray;
            Console.Write("] [");
            Console.ForegroundColor = ConsoleColor.DarkRed;
            Console.Write("HARD");
            Console.ForegroundColor = ConsoleColor.Gray;
            Console.Write("]" +
                "\n                                                   ");
            bool diffLoop = true;
            int numberOfTurns = 0;
            string difficulty = "";
            while (diffLoop)
            {
                difficulty = Console.ReadLine().ToLower();
                switch (difficulty)
                {
                    case "easy":
                        numberOfTurns = 20;
                        diffLoop = false;
                        Console.Write("\n                                                                                                        \r");
                        Console.CursorLeft = 40;
                        Console.Write("Difficulty selected: [");
                        Console.ForegroundColor = ConsoleColor.Green;
                        Console.Write(difficulty.ToUpper());
                        Console.ForegroundColor = ConsoleColor.Gray;
                        Console.Write("]");
                        break;
                    case "medium":
                        numberOfTurns = 15;
                        diffLoop = false;
                        Console.Write("\n                                                                                                        \r");
                        Console.CursorLeft = 40;
                        Console.Write("Difficulty selected: [");
                        Console.ForegroundColor = ConsoleColor.DarkYellow;
                        Console.Write(difficulty.ToUpper());
                        Console.ForegroundColor = ConsoleColor.Gray;
                        Console.Write("]");
                        break;
                    case "hard":
                        numberOfTurns = 10;
                        diffLoop = false;
                        Console.Write("\n                                                                                                        \r");
                        Console.CursorLeft = 40;
                        Console.Write("Difficulty selected: [");
                        Console.ForegroundColor = ConsoleColor.DarkRed;
                        Console.Write(difficulty.ToUpper());
                        Console.ForegroundColor = ConsoleColor.Gray;
                        Console.Write("]");
                        break;
                    default:
                        Console.Write("\n                           Something went wrong, please select a valid difficulty");
                        Console.CursorTop = 6;
                        Console.Write("\r                                                                                                        ");
                        Console.CursorTop = 6;
                        Console.CursorLeft = 51;
                        break;
                }
            }
            System.Threading.Thread.Sleep(1500);
            Console.Clear();
            int turnsPlayed = 0;
            Console.CursorTop = 6;
            for (int i = numberOfTurns; i > 0; i--)
            {
                Console.CursorLeft = 41;
                Console.Write("|   *   *   *   *   |\n");
            }
            Console.CursorTop = 4;
            Console.CursorLeft = 41;
            Console.Write("|  [?] [?] [?] [?]  |");
            Console.CursorTop = 5;
            Console.CursorLeft = 41;
            Console.Write("|-------------------|");

            Console.CursorTop = 3;
            Console.CursorLeft = 41;
            string input = "";

            var randomizedColors = Backend.Randomizer();
            for (turnsPlayed = 0; turnsPlayed < numberOfTurns; turnsPlayed++)
            {
                input = Console.ReadLine();
                var result = Backend.CheckColors(input, randomizedColors);
                if (result[2] == 0)
                {
                    Console.CursorTop = 6 + turnsPlayed;
                    Board(input, result);
                    Console.CursorLeft = 41;
                    Console.CursorTop = 3;
                    Console.Write("                                                                ");
                    Console.CursorLeft = 41;
                    Console.CursorTop = 3;
                }
                else
                {
                    Console.CursorTop = 2;
                    Console.CursorLeft = 30;
                    Console.Write("Something went wrong, please check your input.");
                    Console.CursorLeft = 41;
                    Console.CursorTop = 3;
                    Console.Write("                                                                ");
                    Console.CursorLeft = 41;
                    Console.CursorTop = 3;
                    turnsPlayed--;
                }
            }
        }

        static void Main(string[] args)
        {
            Console.Write(
                "\n\n\n" +
                "                           __  __           _            __  __ _           _ \n" +
                "                          |  \\/  |         | |          |  \\/  (_)         | |\n" +
                "                          | \\  / | __ _ ___| |_ ___ _ __| \\  / |_ _ __   __| |\n" +
                "                          | |\\/| |/ _` / __| __/ _ \\ '__| |\\/| | | '_ \\ / _` |\n" +
                "                          | |  | | (_| \\__ \\ ||  __/ |  | |  | | | | | | (_| |\n" +
                "                          |_|  |_|\\__,_|___/\\__\\___|_|  |_|  |_|_|_| |_|\\__,_|\n" +
                "\n                                                 By Dag\n\n" +
                "                                             Press Any Key");
            Console.ReadKey();
            NewGame();
            Console.ReadLine();
        }
    }
}