- /**
- Defines the oder in which the nodes are renderer.
- Nodes that have a Global Z Order lower,are renderer first.
- In case two or more nodes have the same Global Z Order,the oder is not guaranteed.
- The only exception if the Nodes have a Global Z Order == 0. In that case,the Scene Graph order is used.
- By default,all nodes have a Global Z Order = 0. That means that by default,the Scene Graph order is used to render the nodes.
- Global Z Order is useful when you need to render nodes in an order different than the Scene Graph order.
- Limitations: Global Z Order can't be used used by Nodes that have SpriteBatchNode as one of their acenstors.
- And if ClippingNode is one of the ancestors,then "global Z order" will be relative to the ClippingNode.
- @see `setLocalZOrder()`
- @see `setVertexZ()`
- @since v3.0
- */
- virtual void setGlobalZOrder(float globalZOrder);
今天写代码,准备在最上层加一个label来显示分数,因为之前为了省事儿给好多node设置了GlobalZOrder,可是新添加的这个label一直被上层的node给挡住。
上网查了查才知道:
"Limitations: Global Z Order can't be used used by Nodes that have SpriteBatchNode as one of their censors."
class CC_DLL Label : public SpriteBatchNode,public LabelProtocol
Label是继承了SpriteBatchNode,所以Label设置setGlobalZOrder无效。也没想到解决办法,还是去掉用的setGlobalZOrder吧。