Question

I’m new to cocos2d and to iphone development at all. I want to create some animation, when some physical object with it’s sprite is destroyed (for example to show a splash). And i want to to make some object i will say to: run the animation and destroy yourself when done. Then i want to forget about this object – it should be destroyed automatically when animation is finished. What is the best way to do it?

Answer 1

You can use CCSequence to create a list of actions. The first action you do should be your regular action (or sequence). The second action should be CCCallFuncND action, where you can call a cleanup function and pass the given sprite.

Off the top of my head I’d do something like this:

CCSprite* mySpriteToCleanup = [CCSprite spriteWithFile:@"mySprite.png"];
[self addChild:mySpriteToCleanup];

// ... do stuff

// start the destroy process
id action1 = [CCIntervalAction actionWithDuration:0];  // the action it sounds like you have written above.
id cleanupAction = [CCCallFuncND actionWithTarget:self selector:@selector(cleanupSprite:) data:mySpriteToCleanup];
id seq = [CCSequence actions:action1, cleanupAction, nil];
[mySpriteToCleanup runAction:seq];

and in the cleanup function:

- (void) cleanupSprite:(CCSprite*)inSprite
{
    // call your destroy particles here
    // remove the sprite
    [self removeChild:inSprite cleanup:YES];
}

You could add in another action between these two actions as well for your destroy particle actions instead of calling that in the end function.