private void consumeGoods()
	{
		for(Stock s : warehouse.neededGoods.values())
		{
			Stock.StockType type = s.getType();
			if(s.getVolume() > 0)
			{
				s.removeVolume(1);
				warehouse.usedSpace -= type.getThickness()*1;
				warehouse.availableSpace = Warehouse.capacity - warehouse.usedSpace;
				Empire.getInstance().increaseGold(1*type.getPrice());
			}			
		}
	}