private void Die()
 {
     player.reduceMaxHP(reduceHpPerDeath);
     player.hp = player.MaxHP;
     Instantiate(bloodParticleSystem, transform.position, Quaternion.Euler(180, 0, 0));
     sr.enabled  = false;
     c2d.enabled = false;
     StartCoroutine(Respawn());
 }