public function __construct(AbsTown $town)
 {
     parent::__construct($town);
     $this->setId(7);
     $this->setName('Carrière');
     $this->setPicture('../layout/img/stonepit.png');
     $this->setLevel(1);
     $town->setGold(-self::GOLD);
     $town->setStone(-self::STONE);
     $town->setWood(-self::WOOD);
     $town->setPopulationActive(self::POP);
     $town->setProsperity(1);
 }
 public function __construct(AbsTown $town)
 {
     parent::__construct($town);
     $this->setId(5);
     $this->setName('Mine d\'or');
     $this->setPicture('../layout/img/goldmine.png');
     $this->setLevel(1);
     $town->setGold(-self::GOLD);
     $town->setStone(-self::STONE);
     $town->setWood(-self::WOOD);
     $town->setPopulationActive(self::POP);
     $town->setProsperity(4);
 }