The History of C# - C# Game Programming: For Serious Game Creation - page 16

Red,
Black
}
enum Sex
{
Male,
Female
}
class Baby
{
public string Name { get; set; }
public Sex Sex { get; set; }
public HairColor HairColor { get; set; }
}
class Player
{
public Baby HaveBaby(string babyName, Sex sex ¼ Sex.Female, HairColor
hairColor ¼ HairColor.Black)
{
return new Baby()
{
Name ¼ babyName,
Sex ¼ sex,
HairColor ¼ hairColor
};
}
}
Player player ¼ new Player();
player.HaveBaby(''Bob'', Sex.Male);
player.HaveBaby(''Alice'');
In this example, the player class has code that allows the player to give birth.
The HaveBaby method takes in a name and some other optional arguments
and then returns a new baby object. The HaveBaby method requires a name to
be given but the sex and hairColor arguments are optional. The next ex-
ample shows how to set the hair color argument but leave the sex as the default
female value.
player.HaveBaby(''Jane'', hairColor: HairColor.Blonde)
Named arguments provide a way to only set the arguments we want to set.