public boolean fleetDestroyed()
	{
		if(fleet.size() == 0)
			return false;
		for(int y = 0; y < sea[0].length; y++)
		{
			for(int x = 0; x < sea.length; x++)
			{
				if(sea[x][y] == SHIP)
				{
					return false;
				}
			}
		}
		return true;
	}