using System;

using System.Collections.Generic;

​

​

namespace ConsoleApplication2

{

    abstract class Stat

    {

        public abstract string GetPrefix();        

    }

​

    class SomeStat : Stat

    {

        public SomeStat()

        {

​

        }

​

        public SomeStat(Test cont, string name)

        {

            //...

        }

​

        public override string GetPrefix()

        {

            return "SomePrefix";

        }

    }

​

    class Test

    {

        Dictionary<string, Stat> statDict = new Dictionary<string, Stat>();

        public void AddStat<T>(string statName, Func<Test, string, T> constructor) where T : Stat, new()

        {

            string prefix = new T().GetPrefix();

            if (!statDict.ContainsKey(prefix + statName))

            {

                statDict.Add(prefix + statName, constructor(this, statName));

            }

        }

    }

​

​

    public class Program

    {

        public static void Main(string[] args)

        {

            Test t = new Test();

            t.AddStat("Stat1", (cont, name) => new SomeStat(cont, name));

        }

    }

}

​