Finished project

MathGame.hakonRein/MathGame.hakonRein.slnx

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+<Solution>
+  <Project Path="MathGame.hakonRein/MathGame.hakonRein.csproj" />
+</Solution>

MathGame.hakonRein/MathGame.hakonRein/MathGame.hakonRein.csproj

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+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>Exe</OutputType>
+    <TargetFramework>net10.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+</Project>

MathGame.hakonRein/MathGame.hakonRein/Program.cs

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+/*
+ * A simple math game that allows the user to select an operation and perform calculations.
+ */
+
+int menuChoice = 0;
+int totalPoints = 0;
+List<string> history = new List<string>();
+
+string difficulty = "easy";
+const int EASY_RANGE = 10;
+const int DIFFICULT_RANGE = 100;
+const int QUESTIONS_PER_GAME = 5;
+
+// Used to store operations for the random operator option
+string[] operations = { "+", "-", "*", "/" };
+
+Random numberGenerator = new Random();
+
+do
+{
+    DisplayMenu();
+    while (!int.TryParse(Console.ReadLine(), out menuChoice) || menuChoice < 1 || menuChoice > 8)
+    {
+        Console.Write("Invalid input. Please enter a number between 1 and 8: ");
+    }
+
+    int num1;
+    int num2;
+    int correctAnswer;
+    string operation = "";
+
+    switch (menuChoice)
+    {
+        case 1:
+            operation = "+";
+            break;
+        case 2:
+            operation = "-";
+            break;
+        case 3:
+            operation = "*";
+            break;
+        case 4:
+            operation = "/";
+            break;
+        case 5:
+            // Handle random operator
+            operation = operations[numberGenerator.Next(0, operations.Length)];
+            break;
+        case 6:
+            Console.WriteLine("\nHistory of calculations:");
+            foreach (var record in history)
+            {
+                Console.WriteLine(record);
+            }
+            break;
+        case 7:
+            difficulty = difficulty == "easy" ? "difficult" : "easy";
+            Console.WriteLine($"Changed difficulty to {difficulty}");
+            break;
+        case 8:
+            Console.WriteLine("Exiting the game. Thank you for playing!");
+            break;
+    }
+
+    // Do calculations only if the user selected a calculation operation (1-5)
+    if (menuChoice >= 1 && menuChoice <= 5)
+    { 
+        for (int i = 1; i <= QUESTIONS_PER_GAME; i++)
+        {
+            num1 = numberGenerator.Next(0, difficulty == "easy" ? EASY_RANGE : DIFFICULT_RANGE);
+            num2 = numberGenerator.Next(0, difficulty == "easy" ? EASY_RANGE : DIFFICULT_RANGE);
+
+            // Ensure that division problems are valid (no division by zero and integer results)
+            if (operation == "/")
+            {
+                num2 = numberGenerator.Next(1, difficulty == "easy" ? EASY_RANGE : DIFFICULT_RANGE);
+                num1 = num2 * numberGenerator.Next(0, 10);
+            }
+
+            // Calculate the correct answer and check this against the user's guess
+            correctAnswer = Calculate(num1, num2, operation);
+            Console.Write($"\nQ{i}: {num1} {operation} {num2} = ");
+            int userAnswer;
+            while (!int.TryParse(Console.ReadLine(), out userAnswer))
+            {
+                Console.Write("Invalid input. Please enter a valid integer: ");
+            }
+            if (userAnswer == correctAnswer)
+            {
+                Console.WriteLine("Correct!");
+                totalPoints++;
+                history.Add($"{num1} {operation} {num2} = {correctAnswer} (Correct)");
+            }
+            else
+            {
+                Console.WriteLine($"Incorrect. The correct answer is {correctAnswer}.");
+                history.Add($"{num1} {operation} {num2} = {userAnswer} (Incorrect - Correct answer: {correctAnswer})");
+            }
+            Console.WriteLine($"Total points: {totalPoints}");
+        }
+    }
+
+} while (menuChoice != 8);
+
+
+int Calculate(int num1, int num2, string operation)
+{
+    switch (operation)
+    {
+        case "+":
+            return num1 + num2;
+        case "-":
+            return num1 - num2;
+        case "*":
+            return num1 * num2;
+        case "/":
+            return num1 / num2;
+        default:
+            throw new ArgumentException("Invalid operator");
+    }
+}
+
+void DisplayMenu()
+{
+    Console.WriteLine("\nSelect operation:");
+    Console.WriteLine("1. Addition");
+    Console.WriteLine("2. Subtraction");
+    Console.WriteLine("3. Multiplication");
+    Console.WriteLine("4. Division");
+    Console.WriteLine("5. Random operator");
+    Console.WriteLine("6. Show history");
+    Console.WriteLine("7. Change difficulty to " + (difficulty == "easy" ? "difficult" : "easy"));
+    Console.WriteLine("8. Exit");
+    Console.Write("Your choice (1-8): ");
+}