Codigo para Unity3d Answer

public class botones2 : MonoBehaviour {
    void Start () {
        StartCoroutine("Animate");
    }

    public IEnumerator Animate( GameObject A ){
        activarAnimacion( A );
        Debug.Log("Animate funcion");
            yield return new WaitForSeconds(A.animation.clip.name.Length);
            desactivarAnimacion( A );
    }

    void Update () {
        foreach (Touch touch in Input.touches)
        {
            Ray ray = Camera.main.ScreenPointToRay(touch.position);

            if (touch.phase == TouchPhase.Began)
            {
                RaycastHit hit = new RaycastHit();
                if (Physics.Raycast(ray, out hit, 1000)){
                        switch(hit.transform.name){
                            case "recetas":{
                        Debug.Log("boton recetas");
                        GameObject.Find("menu2").renderer.enabled = false;
                        Debug.Log("Oculta menu");
                        GameObject animacion = GameObject.Find("RULETA");
                        Animate(animacion);
                        activarAnimacion(animacion);
                    break;
                    }
                }
            }
        }
    }
}

     void activarAnimacion (GameObject animacion){
        //muestro todos los planos hijos
        Renderer[] textsAnimacion = animacion.GetComponentsInChildren<Renderer>();
        foreach (Renderer textura in textsAnimacion){
                textura.enabled = true;
        }
        //activo la animacion
        animacion.animation.Play();
    }

    void desactivarAnimacion(GameObject animacion){
        //muestro todos los planos hijos
        Renderer[] textsAnimacion = animacion.GetComponentsInChildren<Renderer>();
        foreach (Renderer textura in textsAnimacion){
                textura.enabled = false;
        }
        //desactivo la animacion
        animacion.animation.Stop();
        Debug.Log("Desactiva anim");
    }

}