using System;

using System.Collections.Generic;

​

​

public interface Actionable{

    void Do();

}

​

public interface Drawable{

    void Draw();

}

​

public class Player : Drawable, Actionable{

    public void Do(){

        Console.WriteLine("Action");

    }

    public void Draw(){

        Console.WriteLine("Draw");

    }

}

public class Program

{

    public delegate void DrawHandler(IEnumerable<Drawable> obj);

    public delegate void LogicHandler(IEnumerable<Actionable> obj);

    public static void gameloop(DrawHandler draw,LogicHandler action){

        List<Player> list = new List<Player>(){

            new Player()

        };

        for(int rounds = 0; rounds < 500; rounds++){

            draw(list);

            action(list);

        }

    }

    public static void Main()

    {

        gameloop(

             list =>{

                foreach(var item in list){

                    item.Draw();

                }

            },

            list =>{

                foreach(var item in list){

                    item.Do();

                }

            }

        );

    }

}