MathGame console application

[ivangar]

This PR adds the initial MathGame console application and project solution to the repository.

What’s included

• Solution and project files for MathGame.ivangar targeting .NET 10
• Core gameplay implementation (GameCenter.cs) and program entry point
• Game and Menu options with validations

How to test

1. Open the solution MathGame.ivangar.slnx in Visual Studio
2. Build the solution targeting .NET 10
3. Run the console app and exercise the main game flow

[github-actions]

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[TheCSharpAcademy]

@ivangar Project approved! 😄✅ The code is neatly organized and with very good separation of concerns. 👏👏It's a shame you didn't complete the challenges this time. 😟 It's always a good use of your time. But nothing stops you from revisiting the project later.

🥋Don't forget you need to submit the Freecodecamp certificate to earn your Green Belt.👏

👩‍🏫Feedback

🔍️The biggest one is IsPrimeNumber(). You don't actually need prime-number detection for GetDivisor(). This already works for prime numbers:

var divisors = Enumerable
    .Range(1, _op1)
    .Where(x => _op1 % x == 0)
    .ToList();

For a prime number, that simply produces 1 and the number itself. Removing IsPrimeNumber() would therefore simplify the code without losing functionality.

🔍️Also, GameValidator.ValidateAnswer(..., ref int score) makes the validator responsible for modifying game state. A cleaner design would be for validation to return whether the answer is correct and let Game update _score

🔍IGame doesn't provide much value at the moment because there's only one implementation and GameCenter directly creates new Game(). There's nothing wrong with practicing interfaces, but avoid introducing abstractions purely for their own sake. If another game implementation or dependency injection appears later, the interface becomes much more useful.

🗺️ Suggested next step

I noticed that you haven't completed any of our courses yet. I suggest you try our Intro to Object Oriented Programming course next. This will close gaps in your knowledge and give you more confidence about OOP.

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Overall good work!✋🏻Looking forward to seeing your next projects!