//If player standing close on zombie
 void OnTriggerStay(Collider col)
 {
     if (!death)
     {
         if (target == null)
         {
             //Check if this player
             if (col.CompareTag("Player"))
             {
                 Player_MovePlayer pl = col.gameObject.GetComponent <Player_MovePlayer>();
                 if (!pl.death)
                 {
                     Vect = col.transform.position - transform.position;
                     float angle = Vector3.Angle(transform.forward, Vect);
                     //Check zombie see player?
                     if (angle <= 90f)
                     {
                         target = pl;
                         pl.AddFollowZombie(index);
                     }
                     else
                     {
                         //If zombie don't see player but player wery close to zombie
                         if (4f > Vect.magnitude)
                         {
                             target = pl;
                             pl.AddFollowZombie(index);
                         }
                     }
                 }
             }
         }
     }
 }
    /// <summary>
    /// Damage zombie
    /// </summary>
    /// <param name="damage">damage</param>
    /// <param name="indexPlayer">player index</param>
    public void ZombieDamage(int damage, int indexPlayer)
    {
        //Take damage
        Data_PlayerFile_Sr zm = RoomsManager.GetPlayerData(index);

        zm.Damage(damage);
        //If zombie not have target follow the attacking
        if (target == null)
        {
            Player_MovePlayer player = RoomsManager.GetPlayerController(indexPlayer);
            if (player)
            {
                target = player;
                player.AddFollowZombie(index);
            }
        }
        //If zombie death
        if (zm.HP <= 0)
        {
            Death();
            string zmName = RoomsManager.GetPlayerData(index).nick;
            if (!string.IsNullOrEmpty(zmName))
            {
                SQL_SavePlayerData.Kill(indexPlayer, zmName);
            }
        }
    }