private void jFlappyKeyReleased(java.awt.event.KeyEvent evt) {
        if (empezar) {
            if (evt.getExtendedKeyCode() == 32) {
                this.mvnt_flappy.setVelocidad(aumentarVelocidad());
                this.mvnt_flappy.setSaltar(true);
                jFlappy.requestFocus(true);
                Sonido.saltar();
            }
            validarChoqueTubos();
        }
    }