public static void DoFlyerTest(IFlyer flyer)
{
flyer.TakeUpper(100);
flyer.TakeLower(50);
flyer.TakeUpper(100);
flyer.TakeLower(100);
}
public Animal(string name, IFlyer flyer)
{
if (string.IsNullOrEmpty(name))
{
throw new ArgumentException("Must not be null or empty.", "name");
}
if (flyer == null)
{
throw new ArgumentNullException("flyer");
}
Name = name;
Flyer = flyer;
}
static void Main(string[] args)
{
List <Animal> animals = new List <Animal>();
Dog d = new Dog();
animals.Add(d);
Bird b = new Bird();
animals.Add(b);
foreach (Animal animal in animals)
{
animal.Foo();
//Bird bird = animal as Bird;
//if(bird != null) {
// Console.WriteLine("The animal can fly");
// MakeFly(bird);
// continue;
//}
//Bat bat = animal as Bat;
//if(bat != null) {
// Console.WriteLine("The animal can fly");
// MakeFly(bat);
// continue;
//}
IFlyer flyer = animal as IFlyer;
if (flyer != null)
{
Console.WriteLine("The animal can fly");
MakeFly(flyer);
continue;
}
}
}
public static string Fly(this IFlyer flyer)
{
return("I'm flying");
}
static void MakeFly(IFlyer flyer)
{
flyer.Fly();
}
private static void DoFly(IFlyer flyer)
{
flyer.Fly();
}
public Bird(string name, IFlyer flyer)
: base(name, flyer)
{
}
public Dog(string name, IFlyer flyer)
: base(name, flyer)
{
}
