void Explosion()
{
/* active bombs */
var n = _bombPower;
/* smoke particles */
var leftSmoke = InsertSmoke();
var rightSmoke = InsertSmoke();
var upSmoke = InsertSmoke();
var downSmoke = InsertSmoke();
if (Vector3.Distance(player.transform.position, gameObject.transform.position) < 4.0f)
{
am.PlayBombExplosion();
}
/* effect */
leftSmoke.GetComponent <ExplosionSmoke>().Move("left", n);
rightSmoke.GetComponent <ExplosionSmoke>().Move("right", n);
upSmoke.GetComponent <ExplosionSmoke>().Move("up", n);
downSmoke.GetComponent <ExplosionSmoke>().Move("down", n);
/* destructors */
leftSmoke.GetComponent <ExplosionSmoke>().Kill();
rightSmoke.GetComponent <ExplosionSmoke>().Kill();
upSmoke.GetComponent <ExplosionSmoke>().Kill();
downSmoke.GetComponent <ExplosionSmoke>().Kill();
Destroy(gameObject);
}