.h
void clipping(Node* menu, const std::string& filename);
```
:5: cpp
void BaseLayer::clipping(Node* menu, const std::string& filename)
{
Vec2 point = menu->getPosition();
Size size = menu->getContentSize();
LayerColor * m_clip = CCLayerColor::create(ccc4(0, 0, 0, 0), size.width, size.height);
ClippingNode* m_clipping = ClippingNode::create();
//设置一些属性
m_clipping->setInverted(false);
m_clipping->setAlphaThreshold(0);
m_clipping->addChild(m_clip);
auto m_sp = Sprite::create(filename, Rect(0, 0, size.width, size.height));
m_sp->setAnchorPoint(Vec2::ZERO);
m_clipping->setStencil(m_sp);
auto m_light = Sprite::create("Resources_UI/TF_UI/move_light.png");
m_light->setScaleX(0.4);
m_light->setRotation(-20);
m_light->setOpacity(150);
m_light->setPositionX(-size.width);
m_clipping->addChild(m_light);
float time = (size.width * 2) / 280;
MoveBy* pMoveBy = MoveBy::create(time, Vec2(size.width * 2, 0));
Hide* pHide = Hide::create();
Sequence* pSequence = Sequence::create(pMoveBy, pHide, NULL);
FiniteTimeAction* pAction = RepeatForever::create(pSequence);
m_light->runAction(pAction);
m_clipping->runAction(cocos2d::Sequence::createWithTwoActions(cocos2d::DelayTime::create(time), cocos2d::RemoveSelf::create()));
menu->addChild(m_clipping);
}
```
:9: :15:
