private static void GetPopulationUsingVar(IOrganism organism)
{
double population = 0;
// Switch on passed organism using var pattern matching.
switch (organism)
{
// Assign organism to new bee variable, if population is roughly equal to 30 trillion.
case var bee when Math.Abs(bee.Population - 30e12) <= 1:
population = bee.Population;
break;
// Assign organism to new human variable, if object type Name is "Human."
case var human when human.GetType().Name == "Human":
population = human.Population;
break;
default:
// Output alert if organism type is unknown.
Logging.Log($"Unknown organism type ({organism.GetType().Name}), or population exceeds all known estimates.");
return;
}
// Output retrieved population estimate.
Logging.Log($"Estimated number of {organism.GetType().Name.ToLower()}s on Earth: {population:n0}.");
}
private static void GetPopulationUsingType(IOrganism organism)
{
double population = 0;
// Switch on passed organism using type pattern matching.
switch (organism)
{
case Bee bee:
population = bee.Population;
break;
case Human human when(human.Population < 1e7):
// If a Human is passed and the population is too low, panic!
Logging.Log($"The human population is too low at {human.Population:n0}! Apocalypse!");
return;
case Human human:
// If the Human population is alright, proceed as normal.
population = human.Population;
break;
case Insect insect:
population = insect.Population;
break;
case Mammal mammal:
population = mammal.Population;
break;
default:
// Output alert if organism type is unknown.
Logging.Log($"Unknown organism type ({organism.GetType().Name}), or population exceeds all known estimates.");
return;
}
// Output retrieved population estimate.
Logging.Log($"Estimated number of {organism.GetType().Name.ToLower()}s on Earth: {population:n0}.");
}