//Ctor
public NorthAmerica(ListBox displayBox, Random rGen, int nAnimalTypes, Graphics canvas)
: base(displayBox, rGen, nAnimalTypes, canvas)
{
//instantiate the appropriate factory
animalFactory = new NorthAmericanAnimalFactory();
}
public NorthAmerica(ListBox displaybox, Random rGen, int nAnimalTypes, Graphics canvas)
: base(displaybox, rGen, nAnimalTypes, canvas)
{
animalFactory = new NorthAmericanAnimalFactory();
}
