void Awake()
{
if (classwideRandom == null)
{
classwideRandom = new System.Random();
}
weightedRandomSprites = new WeightedRandom <Sprite>(weightedSprites.Cast <WeightedRandomElement <Sprite> >().ToList());
spriteRenderer = GetComponent <SpriteRenderer>();
spriteRenderer.sprite = weightedRandomSprites.RandomElement(new System.Random(classwideRandom.Next()));
}
