using System;
using System.Reflection;

class Program
{
  //
  // Inheritance diagram
  // 
  // CAR ----- MUSICAR ---- NICECAR
  //  \            \
  //   \            +------ OLDCAR 
  //    \
  //     +---- HOMEMADECAR 


  // base class
  public abstract class Car
  {
    public string nickname;
    public string color;
    public int miles;
  }

  // class for a car that might have a stereo
  public abstract class musiCar : Car
  {
    public bool hasStereo;
  }

  // inherited class
  public class niceCar : musiCar
  {
    public bool hasMP314Player;
  }

  // inherited class
  public class oldCar : musiCar
  {
    public int age;
  }

  // car that is only related to the base class car
  public class homeMadeCar : Car
  {
    public bool hasStereo;
    public bool isEpa;
  }

  public static void displayCar(Car myCar)
  {
    Console.WriteLine("The {0} car...", myCar.color);
    Console.WriteLine("   - is called '{0}'", myCar.nickname);
    Console.WriteLine("   - has run for '{0}' miles", myCar.miles);

    // is it a musicar?
    if (myCar is musiCar)
    {
      if (((musiCar)myCar).hasStereo)
        Console.WriteLine("   - has a stereo");
      else
        Console.WriteLine("   - has no stereo");

      // is it an old car?
      if (myCar is oldCar)
      {
        Console.WriteLine("   - is {0} years old", ((oldCar)myCar).age);
      }

      // is it a nice car?
      if (myCar is niceCar)
      {
        if (((niceCar)myCar).hasMP314Player)
          Console.WriteLine("   - has an MP314 player");
        else
          Console.WriteLine("   - has no MP314 player");
      }
    }

    // is it an epatraktor? ( http://www.epatraktor.se/galleri/5337.jpg )
    if (myCar is homeMadeCar)
    {
      if (((homeMadeCar)myCar).isEpa)
        Console.WriteLine("   - this is in fact an epatraktor.");
      else
        Console.WriteLine("   - thank System.Math.Random.God() - it is not an epatraktor");
    }

    // what if it is some other class that also might have a stereo
    if (!(myCar is musiCar))
    {
      try
      {
        Type T = myCar.GetType();
        FieldInfo field = T.GetField("hasStereo");

        if ((bool)field.GetValue(myCar))
          Console.WriteLine("   - has a stereo :)");
        else
          Console.WriteLine("   - has no stereo :)");
      }
      catch (Exception ex)
      {
        Console.WriteLine("  the 'hasStereo' of this car was not a bool...");
        Console.WriteLine("  {0}", ex.Message);
      }
    }
  }


  static void Main(string[] args)
  {

    oldCar c1 = new oldCar();
    c1.age = 25;
    c1.color = "beige";
    c1.hasStereo = false;
    c1.miles = int.MaxValue / 2;
    c1.nickname = "ugly betty";

    niceCar c2 = new niceCar();
    c2.color = "light blue metallic";
    c2.hasMP314Player = true;
    c2.hasStereo = c2.hasMP314Player;
    c2.miles = 1337;
    c2.nickname = "Turing the Tempest";

    homeMadeCar c3 = new homeMadeCar();
    c3.color = "black";
    c3.hasStereo = true;
    c3.isEpa = true;
    c3.miles = 555;
    c3.nickname = "KB::P_WAGON";

    Console.WriteLine();
    Console.WriteLine("CAR 1");
    displayCar(c1);

    Console.WriteLine();
    Console.WriteLine("CAR 2");
    displayCar(c2);

    Console.WriteLine();
    Console.WriteLine("\"CAR\" 3");
    displayCar(c3);

  }
}