IEnumerator playLandinganimation(float delay)
{
letter.GetComponent <Animator>().Play("LL_fall_down");
letter.Falling = true;
yield return(new WaitForSeconds(delay));
letter.Falling = false;
letter.OnJumpEnded();
letter.GetComponent <Animator>().CrossFade("LL_land", 0.3f);
}