Add Mastermind game setup and difficulty handling

MastermindController.cs

+using Mastermind;
+using System;
+
+namespace Controller
+{
+    /// <summary>
+    /// Mangages the game flow, handling user interactions and processing inputs
+    /// </summary>
+    class MastermindController
+    {
+        private MastermindGame spiel;
+        private string difficulty;
+
+        /// <summary>
+        /// Starts the game and controls the sequence 
+        /// </summary>
+        public void Play()
+        {
+            Console.WriteLine("Welcome to Mastermind!");
+            Console.WriteLine("======================");
+
+            // User selects a difficulty
+            Console.WriteLine("Please select the difficulty you would like to play on:\n");
+
+            Console.WriteLine("Difficulty: \t[E]asy \nDescription: \tRecommended for beginners.\n");
+            Console.WriteLine("Difficulty: \t[M]edium \nDescription: \tRecommended for advanced users.\n");
+            Console.WriteLine("Difficulty: \t[H]ard \nDescription: \tRecommended for those who are looking for a challenge.\n");
+
+            bool checkMenu = false;
+            do
+            {
+                switch (Console.ReadLine().ToLower())
+                {
+                    case "e":
+                        difficulty = "easy";
+                        checkMenu = true;
+                        break;
+                    case "m":
+                        difficulty = "medium";
+                        checkMenu = true;
+                        break;
+                    case "h":
+                        difficulty = "hard";
+                        checkMenu = true;
+                        break;
+                    default:
+                        Console.WriteLine("Something went wrong! Try again. Only the letters \"E\", \"M\", \"H\" are allowed. ");
+                        break;
+                }
+
+            } while (!checkMenu);
+
+            // Starts Game
+            Console.WriteLine($"Game starts with the difficulty: {difficulty}");
+            spiel = new MastermindGame(difficulty);
+        }
+    }
+}

MastermindGame.cs

@@ -4,12 +4,21 @@ using PseudoRandomGenerator;
 
 namespace Mastermind
 {
+    /// <summary>
+    /// Manages the game mechanics. It includes methods for generating the code, providing feedback after each guess, and checking the win condition
+    /// </summary>
     public class MastermindGame
     {
         private int[] code;
         private readonly int code_length;
         private readonly bool duplicates;
 
+        /// <summary>
+        /// Initializes a new game with the specified difficulty level
+        /// </summary>
+        /// <param name="difficulty">
+        /// The difficulty level of the game,determines the length of the code and the number of attempts
+        /// </param>
         public MastermindGame(string difficulty)
         {
             // Set parameters based on difficulty level
@@ -32,9 +41,15 @@ namespace Mastermind
             }
 
             GenerateCode();
+            foreach(int zahl in code)
+            {
+                Console.WriteLine($"{zahl} ");
+            }
         }
 
-
+        /// <summary>
+        /// Generates the code
+        /// </summary>
         public void GenerateCode()
         {
             LCG lcg = new LCG(DateTime.Now.Ticks);
@@ -45,7 +60,7 @@ namespace Mastermind
                 // Allow duplicates
                 for(int i = 0; i < code_length; i++)
                 {
-                    code[i] = lcg.Next(0, 9);
+                    code[i] = lcg.Next(0, 10);
                 }
             } else
             {
@@ -58,12 +73,12 @@ namespace Mastermind
                     do
                     {
                         isDuplicate = false;
-                        newNumber = lcg.Next(0, 9); // Generates a number between 0 and 9
+                        newNumber = lcg.Next(0, 10); // Generates a number between 0 and 9
 
                         //Check if the generated number is already in the code
-                        for (int j = 0; j < i; i++)
+                        for (int j = 0; j < i; j++)
                         {
-                            if (code[i] == newNumber)
+                            if (code[j] == newNumber)
                             {
                                 isDuplicate = true;
                             }

Program.cs

-using Mastermind;
-using System;
+using System;
+using Controller;
+using Mastermind;
 
 namespace Program
 {
@@ -25,12 +26,15 @@ namespace Program
                     switch (Console.ReadLine().ToLower())
                     {
                         case "s":
-                            checkMenu = true;
                             Console.WriteLine("Starting Game ...");
+                            MastermindController controller = new MastermindController();
+                            controller.Play();
+                            checkMenu = true;
                             break;
                         case "t":
                             Tutorial tutorial = new Tutorial();
                             tutorial.TutorialGame();
+                            checkMenu = true;
                             break;
                         case "q":
                             Environment.Exit(0);