Function_05ver02

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

namespace Shuffler_ver02
{
    class Program
    {
        static void Main(string[] args)
        {
            string[] arrayPlayingCards;

            GetArrayCards(out arrayPlayingCards);
            Console.WriteLine($"Загружена колода из {arrayPlayingCards.Length} карт.\n");

            DisplayPlayingCards(arrayPlayingCards);

            Console.WriteLine($"\n\n... подождите, идет перетасовка колоды ...\n");
            ShuffleCards(arrayPlayingCards);
            System.Threading.Thread.Sleep(2000);

            Console.WriteLine($"Перетасованная колода:");
            DisplayPlayingCards(arrayPlayingCards);

            Console.Write($"\n\nНажмите любую клавишу для выхода");
            Console.ReadKey();
        }

        static void GetArrayCards(out string[] arrayPlayingCards)
        {
            arrayPlayingCards = new string[]
            { "6♠", "7♠", "8♠", "9♠", "10♠", "В♠", "Д♠", "К♠", "Т♠",
                "6♣", "7♣", "8♣", "9♣", "10♣", "В♣", "Д♣", "К♣", "Т♣",
                "6♥", "7♥", "8♥", "9♥", "10♥", "В♥", "Д♥", "К♥", "Т♥",
                "6♦", "7♦", "8♦", "9♦", "10♦", "В♦", "Д♦", "К♦", "Т♦"
            };
        }

        static string[] DisplayPlayingCards(string[] arrayPlayingCards)
        {
            for (int i = 0; i < arrayPlayingCards.Length; i++)
            {
                Console.Write($"{arrayPlayingCards[i]} ");
            }
            return arrayPlayingCards;
        }

        static string[] ShuffleCards(string[] arrayPlayingCards)
        {
            int arraySize = arrayPlayingCards.Length;

            Random rand = new Random();

            string indexCard;
            string randomCard;

            for(int i =0; i < arraySize; i++)
            {
                int randomNumber = rand.Next(0, arraySize);

                indexCard = arrayPlayingCards[i];
                randomCard = arrayPlayingCards[randomNumber];

                arrayPlayingCards[i] = randomCard;
                arrayPlayingCards[randomNumber] = indexCard;
            }

            return arrayPlayingCards;
        }
    }
}