//construct process to build an animal object,
//after this process completed, a object
//will be consider as a ready to use object.
/// <summary>
/// This a director
/// </summary>
/// <param name="animalBuilder"></param>
public void MakeAnimal(AnimalBuilder animalBuilder)
{
animalBuilder.BuildHead();
animalBuilder.BuildBody();
animalBuilder.BuildArm();
animalBuilder.BuildLeg();
animalBuilder.BuildTail();
}
