Added User Input

MastermindController.cs

 using Mastermind;
 using System;
+using System.Net.Http.Headers;
 
 namespace Controller
 {
@@ -53,6 +54,49 @@ namespace Controller
             // Starts Game
             Console.WriteLine($"Game starts with the difficulty: {difficulty}");
             spiel = new MastermindGame(difficulty);
+
+            while(spiel.StillHasTrials())
+            {
+                // User input Code
+                int[] userInput = ReadInput();
+
+                foreach (int i in userInput)
+                {
+                    Console.WriteLine(i);
+                }
+            }
+        }
+
+        private int[] ReadInput()
+        {
+            int generatedCodeLength = spiel.GetCodeLength();
+            int[] input = new int[generatedCodeLength];
+            bool check = false;
+            while (!check)
+            {
+                Console.WriteLine($"Please enter {generatedCodeLength} numbers (0 - 9) according to this scheme (e.g.: 0 1 2 3) ");
+                string inputString = Console.ReadLine();
+                string[] parts = inputString.Split(' ');
+
+                if(parts.Length == generatedCodeLength)
+                {
+                    // Convert string to int in array
+                    for (int i = 0; i < input.Length; i++)
+                    {
+                        if (int.TryParse(parts[i], out int tmp))
+                        {
+                            input[i] = tmp;
+                            check = true;
+                        }
+                        else
+                        {
+                            Console.WriteLine("Error! Something went wrong with the formatting. Try again");
+                            check = false;
+                        }
+                    }
+                }
+            }
+            return input;
         }
     }
 }

MastermindGame.cs

@@ -12,6 +12,8 @@ namespace Mastermind
         private int[] code;
         private readonly int code_length;
         private readonly bool duplicates;
+        private readonly int maxAttempt;
+        private int currentAttempt;
 
         /// <summary>
         /// Initializes a new game with the specified difficulty level
@@ -27,20 +29,27 @@ namespace Mastermind
                 case "easy":
                     code_length = 4;
                     duplicates = false;
+                    maxAttempt = 6;
                     break;
                 case "medium":
                     code_length = 6;
                     duplicates = false;
+                    maxAttempt = 4;
                     break;
                 case "hard":
                     code_length = 8;
                     duplicates = true;
+                    maxAttempt = 3;
                     break;
                 default:
                     throw new ArgumentException("Invalid difficulty level");
             }
 
+            currentAttempt = 0;
+
             GenerateCode();
+
+            // Debugging (Gets removed later)
             foreach(int zahl in code)
             {
                 Console.WriteLine($"{zahl} ");
@@ -115,5 +124,15 @@ namespace Mastermind
 
         }
 
+        public bool StillHasTrials()
+        {
+            return currentAttempt < maxAttempt;
+        }
+
+        public int GetCodeLength()
+        {
+            return code.Length;
+        }
+
     }
 }