What do you mean Level 9?

Sorry I did not mention that this is Popstar game.

All in all, everytime I eliminate stars and produce particle effect, memory usage increases. That is why I said Level 9 (from Level 1 to 9, hundreds of stars were eliminated.)

after the effect has finished trying removing it like so

node->removeChild(effect);

Now here is my question. How do I control the effect and remove it after a period of time?

After each levels perhaps delete all effects?

I think it will be a little bit difficult.

This is my structure of Popstar,

The particle effect is in StarMatrix.cpp, and I call the function whenever I detect a group of stars with same color. In other words, if 5 stars is eliminated, particle effect runs 5 times in a 10 x 10 for-loop due to my width and height of the matrix. The function type is void, and I create the particle effect in StarParticle.cpp, which means I cannot delete the particles in StarMatrix.cpp, And I tried to delete particles in StarParticle.cpp, either particles were deleted immediately and nothing showed up or I failed to remove the particles.

If I make you confuse I apologize for that. I have no idea how to explain it any more specificly.

Will this cause memory issue?

//#StarMatrix.cpp

	...
	
	for(int i = 0; i < 10; i++)
		for(int j = 0; j < 10; j++)
			createParticleEffect(color, position, this);
	...
}

//#StarParticle.cpp

void createParticleEffect(const int color, const Point position, Node* node)
{
	ParticleExplosion* effect = ParticleExplosion::create();
	effect->setTexture(Director::getInstance()->getTextureCache()->addImage("star.png"));
	effect->setTotalParticles(800);
	effect->setStartColor(getColor4F(color));
	effect->setStartColorVar(Color4F(0, 0, 0, 1));
	effect->setEndColor(getColor4F(color));
	effect->setEndColorVar(Color4F(0, 0, 0, 1));

	effect->setStartSize(25.0f);
	effect->setGravity(Point(0, -300));
	effect->setLife(0.3f);
	effect->setSpeed(350);
	effect->setSpeedVar(20);

	effect->setPosition(position);
	node->addChild(effect);
}

I am thinking if I use a double for-loop to create multiple particle effects, the pointer of later-created particle will overwrite the former one. I guess this might cause memory leak.

After 3 days debugging and struggling, I have succeeded deleting these leaked memory.

I assume that everytime we produce the particle effect without assigning pointers to it will cause memory leak. Therefore, I create an array to store the pointers.

ParticleExplosion* effect[100];

I was trying to create effect[10][10] but failed, so I had no choice but use one dimension array and calculate the index by myself.

Then I use CallFunc::create to make this->removeChild(effect) a action. Finally I create a sequence to run DelayTime and CallFunc.

I hope there will not be too many obstacles before I finish the game.

Great to hear :D