/**
* @param $person1 Person
* @param $person2 Person
* @return Person
*/
public static function crossover($person1, $person2)
{
$child = new Person();
if (Algorithm::hasMutation()) {
$child->setEyesColor(new EyesColor(EyesColor::MARK_BLUE));
$child->setHairColor(new HairColor(HairColor::MARK_BLONDE));
$child->setSkinColor(new SkinColor(0));
$child->setIsMutant(true);
} else {
$child->setEyesColor(Algorithm::getDominant($person1->getEyesColor(), $person2->getEyesColor()));
$child->setHairColor(Algorithm::getDominant($person1->getHairColor(), $person2->getHairColor()));
$child->setSkinColor(new SkinColor(floatval(($person1->getSkinColor()->getValue() + $person2->getSkinColor()->getValue()) / 2.0)));
}
$child->setParents([$person1->getId(), $person2->getId()]);
return $child;
}
