// Multiple dispatch or multimethods is the feature of some object-oriented programming languages in which a function or method can be dynamically dispatched based on the run time (dynamic) type of more than one of its arguments." http://en.wikipedia.org/wiki/Multiple_dispatch
public static void Start()
{
Console.WriteLine("\nMultipleDispatchNotWorking\n");
SpaceShip ship = new SpaceShip() { Name = "enterprise" };
IObjectInSpace a = new Planet() { Gravity = 1 };
IObjectInSpace b = new Planet() { Gravity = 5 };
IObjectInSpace c = new Asteroid() { Metal = 3 };
IObjectInSpace d = new Asteroid() { Metal = 2 };
// The following doesn't work because C# doesn't do automatic dynamic dispathing
Console.WriteLine(ship.DescribeInteraction(a));
Console.WriteLine(ship.DescribeInteraction(b));
Console.WriteLine(ship.DescribeInteraction(c));
Console.WriteLine(ship.DescribeInteraction(d));
}
public string DescribeInteraction(Asteroid other)
{
return "this will never get called because C# doesn't support multiple dispatch";
}
public string DescribeInteraction(Asteroid other)
{
return("this will never get called because C# doesn't support multiple dispatch");
}