void GenerateZombie()
    {
        Vector3 pos = CalcularPosicaoMaisDistanteDoPlayer();
        //Collider[] colliders = Physics.OverlapSphere(pos, 10, layerZUmbi);

        /*while(colliders.Length>3)
         * {
         *  pos = RandomPos();
         *  colliders = Physics.OverlapSphere(pos, 15, layerZUmbi);
         * } */

        Zumbizao zumbi = Instantiate(Bosszombie, pos, transform.rotation).GetComponent <Zumbizao>();

        scriptUI.ApareceTextoChefe();
    }