Data commit

Task/21-game/C-sharp/21-game.cs

@@ -0,0 +1,151 @@
+// 21 Game
+
+using System;
+
+namespace _21Game
+{
+    public class Program
+    {
+        private const string computerPlayer = "Computer";
+        private const string humanPlayer = "Player 1";
+
+        public static string SwapPlayer(string currentPlayer)
+        {
+            if (currentPlayer == computerPlayer)
+            {
+                currentPlayer = humanPlayer;
+            }
+            else
+            {
+                currentPlayer = computerPlayer;
+            }
+
+            return currentPlayer;
+        }
+
+        public static void PlayGame()
+        {
+            bool playAnother = true;
+            int total = 0;
+            int final = 21;
+            int roundChoice = 0;
+            string currentPlayer = RandomPLayerSelect();
+            int compWins = 0;
+            int humanWins = 0;
+
+            while (playAnother)
+            {
+                Console.WriteLine($"Now playing: {currentPlayer}");
+                try
+                {
+                    if (currentPlayer == computerPlayer)
+                    {
+                       roundChoice =  CompMove(total);
+                    }
+                    else
+                    {
+                        roundChoice = int.Parse(Console.ReadLine());
+                    }
+
+
+                    if (roundChoice != 1 && roundChoice != 2 && roundChoice != 3)
+                    {
+                        throw new Exception();
+                    }
+
+                    total += roundChoice;
+                }
+                catch (Exception)
+                {
+                    Console.WriteLine("Invalid choice! Choose from numbers: 1, 2, 3.");
+                    continue;
+                }
+
+                Console.WriteLine(total);
+
+                if (total == final)
+                {
+                    if (currentPlayer == computerPlayer)
+                    {
+                        compWins++;
+                    }
+                    if (currentPlayer == humanPlayer)
+                    {
+                        humanWins++;
+                    }
+                    Console.WriteLine($"Winner: {currentPlayer}");
+                    Console.WriteLine($"Comp wins: {compWins}. Human wins: {humanWins}");
+                    Console.WriteLine($"do you wan to play another round? y/n");
+                    var choice = Console.ReadLine();
+                    if (choice == "y")
+                    {
+                        total = 0;
+                    }
+                    else if (choice == "n")
+                    {
+                        break;
+                    }
+                    else
+                    {
+                        Console.WriteLine("Invalid choice! Choose from y or n");
+                        continue;
+                    }
+                }
+
+                else if (total > 21)
+                {
+                    Console.WriteLine("Not the right time to play this game :)");
+                    break;
+                }
+
+                currentPlayer = SwapPlayer(currentPlayer);
+            }
+        }
+
+        public static bool CheckIfCanWin(int total)
+        {
+            bool result = false;
+            if (total == 18)
+            {
+                result = true;
+            }
+            return result;
+        }
+
+        public static int CompMove(int total)
+        {
+            int choice = 0;
+
+            if (CheckIfCanWin(total))
+            {
+                choice = 21 - total;
+            }
+            else
+            {
+                choice = new Random().Next(1,4);
+            }
+
+            return choice;
+        }
+
+        public static string RandomPLayerSelect()
+        {
+            string[] players = new string[] { computerPlayer, humanPlayer };
+            var random = new Random().Next(0,2);
+            return players[random];
+        }
+
+        public static void Main(string[] args)
+        {
+            // welcome message and rules
+            Console.WriteLine("Welcome to 21 game \n");
+            Console.WriteLine(@"21 is a two player game.
+The game is played by choosing a number.
+1, 2, or 3 to be added a total sum. \n
+The game is won by the player reaches exactly 21. \n" );
+            Console.WriteLine("Choose your number: (1, 2 or 3)");
+
+            PlayGame();
+        }
+    }
+}