Transform NewRock(Transform [] rocks, Transform[] track)
{
Transform transform1;
int position = Random.Range (0, track.Length - 1);
if (position < 46 || position > 113) {
if (rocks.Contains (track [position]))
transform1 = NewRock (rocks, track);
else
transform1 = track [position];
} else
transform1 = NewRock (rocks, track);
return transform1;
}