Touch - Node:Particles

cocos2d-x C++
#1

Guys, is there another way to validate if the user is touching the particle?
because below this code not working:
if(getChildByTag(1)->boundingBox().containsPoint§

// here create my particle at the beginning
ParticleSystemQuad* m_emitter_blue = ParticleSystemQuad::create();
m_emitter_blue = ParticleSun::create();

m_emitter_blue->retain();
m_emitter_blue->setStartSizeVar(150.0f);
//m_emitter_blue->setStartColor(Color4F::BLUE);
m_emitter_blue->setEndColor(Color4F::BLUE);
m_emitter_blue->setTag(1);
addChild(m_emitter_blue);

// Here the event
void HelloWorld::onTouchEnded(cocos2d::Touch *pTouch, cocos2d::Event *pEvent) {

Point p = pTouch->getLocationInView();
p.y = Director::sharedDirector()->getWinSize().height - p.y;

if(getChildByTag(1)->boundingBox().containsPoint(p)){	
}

}

#2

It is not possible, because particle emitter doesn’t have bounding box concept. There are many particles, and each particle will run in different tracks.

I think you add another layer to detect if user is touching a particle.

#3

I could make it work by putting an invisible sprite background in the same position of my particle.
I’ll try to use Layer to see the result.

thks