Facade

using System;

namespace test
{
    class Program
    {
        class Pasta
        {
            public void MakePasta()
            {
                Console.WriteLine("Приготовление пасты");
            }
        }

        class Cheese
        {
            public void AddCheese()
            {
                Console.WriteLine("Добавление сыра");
            }
        }

        class Filling
        {
            public void MakeMeat()
            {
                Console.WriteLine ("Приготовление и добавление мяса");
            }

            public void AddMushrooms()
            {
                Console.WriteLine("Добавление грибов");
            }
        }


        class DishFacade
        {
            Pasta pasta;
            Cheese cheese;
            Filling filling;

            public DishFacade(Pasta p, Cheese c, Filling f)
            {
                this.pasta = p;
                this.cheese = c;
                this.filling = f;
            }

            public void CreateOrdinaryDish()
            {
                pasta.MakePasta();
                cheese.AddCheese ();
                filling.MakeMeat ();
            }

            public void CreateVegeterianDish()
            {
                pasta.MakePasta();
                cheese.AddCheese ();
                filling.AddMushrooms ();
            }
        }

        public static void Main (string[] args)
        {
            Pasta pasta = new Pasta ();
            Cheese cheese = new Cheese ();
            Filling filling = new Filling ();

            DishFacade dish = new DishFacade (pasta, cheese, filling);
            dish.CreateVegeterianDish ();

        }
    }
}