public function __construct(Furnace $furnace, Item $fuel, $burnTime)
{
parent::__construct($furnace->getBlock());
$this->fuel = $fuel;
$this->burnTime = (int) $burnTime;
$this->furnace = $furnace;
}
public function __construct(Furnace $furnace, Item $source, Item $result)
{
parent::__construct($furnace->getBlock());
$this->source = clone $source;
$this->source->setCount(1);
$this->result = $result;
$this->furnace = $furnace;
}