Method removeAllChildrenWithCleanup

core/2d/SpriteBatchNode.cpp:278–294

}

void SpriteBatchNode::removeAllChildrenWithCleanup(bool doCleanup)
{
    // Invalidate atlas index. issue #569
    // useSelfRender should be performed on all descendants. issue #1216
    for (const auto& sprite : _descendants)
    {
        sprite->setBatchNode(nullptr);
    }

    Node::removeAllChildrenWithCleanup(doCleanup);

    _descendants.clear();
    if (_textureAtlas)
    {
        _textureAtlas->removeAllQuads();
    }
}

// override sortAllChildren
void SpriteBatchNode::sortAllChildren()