Method visit

core/2d/NodeGrid.cpp:97–173

}

void NodeGrid::visit(Renderer* renderer, const Mat4& parentTransform, uint32_t parentFlags)
{
    // quick return if not visible. children won't be drawn.
    if (!_visible)
    {
        return;
    }

    bool dirty = (parentFlags & FLAGS_TRANSFORM_DIRTY) || _transformUpdated;
    if (dirty)
        _modelViewTransform = this->transform(parentTransform);
    _transformUpdated = false;

    // IMPORTANT:
    // To ease the migration to v3.0, we still support the Mat4 stack,
    // but it is deprecated and your code should not rely on it
    _director->pushMatrix(MATRIX_STACK_TYPE::MATRIX_STACK_MODELVIEW);
    _director->loadMatrix(MATRIX_STACK_TYPE::MATRIX_STACK_MODELVIEW, _modelViewTransform);

    Director::Projection beforeProjectionType = Director::Projection::DEFAULT;
    if (_nodeGrid && _nodeGrid->isActive())
    {
        beforeProjectionType = _director->getProjection();
        _nodeGrid->set2DProjection();
    }

    onGridBeginDraw();

    if (_gridTarget)
    {
        _gridTarget->visit(renderer, _modelViewTransform, dirty);
    }

    int i                = 0;
    bool visibleByCamera = isVisitableByVisitingCamera();

    if (!_children.empty())
    {
        sortAllChildren();
        // draw children zOrder < 0
        for (auto size = _children.size(); i < size; ++i)
        {
            auto node = _children.at(i);

            if (node && node->getLocalZOrder() < 0)
                node->visit(renderer, _modelViewTransform, dirty);
            else
                break;
        }
        // self draw,currently we have nothing to draw on NodeGrid, so there is no need to add render command
        if (visibleByCamera)
            this->draw(renderer, _modelViewTransform, dirty);

        for (auto it = _children.cbegin() + i, itCend = _children.cend(); it != itCend; ++it)
        {
            (*it)->visit(renderer, _modelViewTransform, dirty);
        }
    }