Factory Pattern to build many derived classes

Question

I have a factory object ChallengeManager to generate instances of a Challenge object for a game I\'m building. There are many challenges. The constru

Answer 1

Not necessarily the answer you are looking for but... You can use following implementation, if you can move away from static method per class.

using System;

public class Test
{
    public static void Main()
    {
        var c1 = ChallengeManager.CreateChallenge();
        var c2 = ChallengeManager.CreateChallenge();
        //var c = ChallengeManager.CreateChallenge(); // This statement won't compile
    }
}

public class ChallengeManager
{
    public static Challenage CreateChallenge()
    {
        // identify which challenge to instantiate. e.g. Challenage1
        var c = CreateChallenge();
        return c;
    }

    private static Challenage CreateChallenge() where T: Challenage, new()
    {
        return new T();
    }
}

public abstract class Challenage{}
public class Challenage1: Challenage{}
public class Challenage2: Challenage{}