/**
* Returns a map CitizenUniqueIdentifier => Citizen
* @return array
*/
protected function getCitizens()
{
$citizens = [];
foreach ($this->population->getAllCitizenUniqueIdentifiers() as $identifier) {
$citizens[$identifier] = $this->population->getCitizenByUniqueIdentifier($identifier);
}
return $citizens;
}
protected function removeWorstPerformersFromPopulation()
{
$worstPerformerIdentifiers = $this->scoreManager->getWorstPerformersUniqueIdentifiers($this->citizensCountToReplacePerGeneration);
foreach ($worstPerformerIdentifiers as $identifier) {
$this->population->removeCitizenByUniqueIdentifier($identifier);
}
}
