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I have an animated bomb sprite in my game and use CGRect for collision detection:

for (CCSprite bomb : _bombs) {
        CGRect bombRect = CGRect.make(bomb.getPosition().x - (scaleFactor * bomb.getContentSize().width),
                bomb.getPosition().y - (bomb.getContentSize().height),
                scaleFactor * bomb.getContentSize().width,
                scaleFactor * bomb.getContentSize().height);

        if (CGRect.intersects(playerRect, bombRect))
            CCDirector.sharedDirector().replaceScene(GameOverScreen.scene());
    }

Is it possible to make the collision detection only work on the explosion frames in my bomb animation? I want the bomb sprite to be harmless before explosion.

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can you more elaborate your query ? –  A M Sep 17 '13 at 6:03
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