public static Eater Update(EaterMsg msg, Eater eater, EaterParameters parameters = null)
{
switch (msg)
{
case EaterMsg.IncrementHunger:
return(IncrementHunger(eater));
case EaterMsg.DecreaseHunger:
return(DecreaseHunger(eater, (DecreaseHunger)parameters));
default:
throw new ArgumentOutOfRangeException(nameof(msg), msg, null);
}
}
private static Eater IncrementHunger(Eater eater)
{
return(new Eater(hunger: eater.hunger + 1));
}
private static Eater DecreaseHunger(Eater eater, DecreaseHunger parameters)
{
return(new Eater(hunger: eater.hunger - parameters.value));
}