/**
* calculates the hourly production of all production buildings in a particular city.
* production = (level of building * number of workers in the building) % health of building
*
* @param City $city
* @return array
*/
public static function calculateProduction(City $city)
{
$production = ['food' => 0, 'iron' => 0, 'lumber' => 0, 'stone' => 0];
foreach ($city->workingBuildings() as $building) {
$profit = number_format($building->level * $building->workers * ($building->health / 100), 2);
switch ($building->type) {
case 1:
$production['food'] += $profit;
break;
case 2:
$production['stone'] += $profit;
break;
case 3:
$production['iron'] += $profit;
break;
case 4:
$production['lumber'] += $profit;
break;
}
}
return $production;
}