public void changeSprite()
{
Image img = this.transform.GetChild(0).GetComponent <Image>();
if (img != null)
{
img.sprite = spriteLib.sprites[spriteLib.CardToSprite(card)];
}
else
{
SpriteRenderer sr = this.transform.GetChild(0).GetComponent <SpriteRenderer>();
sr.sprite = spriteLib.sprites[spriteLib.CardToSprite(card)];
}
}