protected virtual void HitDamageAndBeatBack(Projectile proj, Vector2 pos)
{
hp -= proj.damage;
BattleInfo info = GameObject.FindWithTag("BattleInfo").GetComponent <BattleInfo>();
info.AddDamageText(transform.position, proj.damage, false);
Vector2 beatDir = (Vector2)transform.position - pos;
beatDir.Normalize();
knockForce = beatDir * proj.knockBack;
}
