public void WormBoost(string boost)
    {
        //tokenize string
        string[] str = boost.Split(' ');

        int worm_no = int.Parse(str[0]);

        for (int i = 0; i < worm_no; i++)
        {
            if (WormsList[i] != null)
            {
                HeadController headController = WormsList[i].GetComponent <HeadController>();
                if (bool.Parse(str[i + 1]))
                {
                    headController.boost_enable();
                }
                else
                {
                    headController.boost_unable();
                }
            }
        }
    }