R_Charp_Console_Jack

using System;
using System.Threading;

namespace ConsoleJackApp
{
    using static Program;

    static class Program
    {
        static void Main(string[] args)
        {
            new JackGame();
            AddSeparator();
            AskForKey("Press any key to close the window.");
        }

        public static void Header()
        {
            Console.ForegroundColor = ConsoleColor.Black;
            Console.BackgroundColor = ConsoleColor.Cyan;
            Console.WriteLine("Welcome to TERMINAL JACK!");
            Console.ForegroundColor = ConsoleColor.Gray;
            Console.BackgroundColor = ConsoleColor.Black;
        }
        public static void AddSeparator()
        {
            Console.ForegroundColor = ConsoleColor.White;
            Console.WriteLine("--------------------");
            Console.ForegroundColor = ConsoleColor.Gray;
        }
        public static ConsoleKeyInfo AskForKey(string message)
        {
            Console.WriteLine(message);
            return Console.ReadKey();
        }
        public static string AskChoice(string message)
        {
            Console.ForegroundColor = ConsoleColor.White;
            Console.WriteLine(message);
            Console.ForegroundColor = ConsoleColor.Gray;
            return Console.ReadLine().ToLower();
        }
        public static void ShowMessage(params string[] lines)
            => ShowMessage(ConsoleColor.Gray, lines);

        public static void ShowMessage(ConsoleColor color, params string[] lines)
        {
            Console.ForegroundColor = color;
            foreach (var item in lines)
            {
                if (item!=null)
                {
                    Console.WriteLine(item);
                }
                else
                {
                    Console.WriteLine();
                }
                Console.ForegroundColor = ConsoleColor.Gray;
            }
        }

        public static void Delay(int delay = 1500)
        {
            Thread.Sleep(delay);
        }

    }

    public class JackGame
    {
        const int maxDealerHands = 21;
        const int maxPlayerHands = 5;
        static readonly Random rng = new Random();

        bool startFinish = false;
        int handTotal = 0;
        int playerCard = 0;
        readonly int[] dealer = new int[maxDealerHands];
        readonly int[] hand = new int[maxPlayerHands];

        public JackGame()
        {
            Header();
            AddSeparator();
            AskForKey("Press any key to continue.");
            ShowMessage(null, "You will now be dealt two cards.");
            AddSeparator();
            Hit();
            Hit();
            startFinish = true;
            GetPlayerChoice();
        }

        void Call()
        {
            int dealerTotal = 0;
            ShowMessage(ConsoleColor.Yellow,
                $"Your total is {handTotal}",
                "The dealer will now draw cards.");
            Delay();
            for (int dealCard = 0; dealerTotal <= handTotal; dealCard++)
            {
                dealer[dealCard] = rng.Next(1, 14);
                if (dealer[dealCard]>10)
                {
                    dealer[dealCard] = 10;
                }
                dealerTotal += dealer[dealCard];
                Delay();
                ShowMessage($"Dealer card is {dealer[dealCard]}.");
            }
            if (dealerTotal > maxDealerHands)
            {
                Delay();
                AddSeparator();
                ShowMessage(ConsoleColor.Green,
                    "YOU WIN!",
                    "Dealer busts!");
            }
            else
            {
                Delay();
                AddSeparator();
                ShowMessage(ConsoleColor.Red,
                    "GAME OVER!",
                    "Dealer is closer.");

            }
        }

        void GetPlayerChoice()
        {
            bool chosen = false;
            while (!chosen)
            {
                string choice = AskChoice("HIT or CALL?");
                if (choice == "hit")
                {
                    chosen = true;
                    Hit();
                }
                else if (choice == "call")
                {
                    chosen = false;
                    Call();
                }
                else
                {
                    ShowMessage("Try Again.");
                }
            }
        }

        void Hit()
        {
            hand[playerCard] = rng.Next(1, 14);
            if (hand[playerCard] > 10)
            {
                hand[playerCard] = 10;
            }
            handTotal += hand[playerCard];
            ShowMessage($"Your card is {hand[playerCard]}.");
            if (playerCard == maxPlayerHands-1 && handTotal <= maxDealerHands)
            {
                AddSeparator();
                ShowMessage(ConsoleColor.Green, "YOU WIN!",
                "You managed to draw five cards without busting.");
            }
            else if (handTotal > maxDealerHands)
            {
                AddSeparator();
                ShowMessage(ConsoleColor.Red, "GAME OVER.",
                "You busted.");
            }
            else if (handTotal == maxDealerHands)
            {
                AddSeparator();
                ShowMessage(ConsoleColor.Cyan, "YOU WIN!",
                "Your card total is 21!");
            }
            else if (startFinish)
            {
                GetPlayerChoice();
            }
            playerCard++;
        }
    }
}