public function __construct($last_gen = null)
{
$this->_humans = array();
// Init
if (!isset($last_gen) || !is_array($last_gen)) {
for ($i = 0; $i < self::INIT_NUMBER; $i++) {
$gender = Random::gender();
$iQ = Random::iQ(self::IQ_INIT_BASE, self::IQ_INIT_VAR, self::IQ_INIT_SD);
$this->_humans[] = new Human($gender, $iQ);
}
// Based on last generation
} else {
while (($mother = array_shift($last_gen[Human::$genders[Human::FEMALE]])) && ($father = array_shift($last_gen[Human::$genders[Human::MALE]]))) {
$childNum = Random::childNum();
for ($i = 0; $i < $childNum; $i++) {
$gender = Random::gender();
$iQ = self::childIQ($gender, $father, $mother);
$this->_humans[] = new Human($gender, $iQ);
}
}
}
}