Label::getLetter

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from: Cocos2d-x Cookbook by Akihito Matsuura (Packt Publishing, 2015)

With Bitmap font label, each character sprite can be accessed via Label::getLetter  method as follows:

auto label= Label::createWithBMFont("fonts/futura-48.fnt", "Bitmap Font");
label->setPosition(size/2);
this->addChild(label);

auto sprite1= label->getLetter(0);
sprite1->setRotation(30.0f);

auto sprite2= label->getLetter(1);
sprite2->setScale(0.5f);