private void OnCollisionEnter2D(Collision2D collision)
{
if (collision.gameObject.tag == "enemy")
{
AudioSource audio = GetComponent <AudioSource>();
// audio.PlayOneShot(explode);
audio.Play();
rend.enabled = false;
Destroy(gameObject, audio.clip.length);
var Exp = Instantiate(explosion, gameObject.transform.position, Quaternion.identity);
ui.ActivateGameOver();
}
}