public void Restart()
{
dead = false;
lifetime = 2f;
theList = PinZiGM.QuestionList();
spriteNo = theList [Random.Range(0, theList.Count / 2)];
var renderer = GetComponent <SpriteRenderer> ();
renderer.sprite = spritePianPang [7 - spriteNo];
}
// Use this for initialization
void Start()
{
theList = PinZiGM.QuestionList();
}