Fun with Sprites – Sky Defense - Cocos2d-x by Example Beginner's Guide - page 129

auto touch = (Touch *)pTouches->anyObject();
if (touch) {
//if bomb already growing...
if (_bomb->isVisible()) {
//stop all actions on bomb, halo and sparkle
_bomb->stopAllActions();
auto child = (Sprite *)
_bomb->getChildByTag(kSpriteHalo);
child->stopAllActions();
child = (Sprite *)
_bomb->getChildByTag(kSpriteSparkle);
child->stopAllActions();
//if bomb is the right size, then create shockwave
if (_bomb->getScale() > 0.3f) {
_shockWave->setScale(0.1f);
_shockWave->setPosition(_bomb->getPosition());
_shockWave->setVisible(true);
_shockWave->runAction(ScaleTo::create(0.5f,
_bomb->getScale() * 2.0f));
_shockWave->runAction(_shockwaveSequence->clone());
SimpleAudioEngine::getInstance()->playEffect("bombRelease.wav");
} else {
SimpleAudioEngine::getInstance()->playEffect("bombFail.wav");
}
_bomb->setVisible(false);
//reset hits with shockwave, so we can count
combo hits
_shockwaveHits = 0;
//if no bomb currently on screen, create one
} else {
Point tap = touch->getLocation();