"The Learning experience of node class GetParent and Getchildbytag () in COCOS2DX"

Reference http://cn.cocos2d-x.org/doc/cocos2d-x-3.0/d3/d82/classcocos2d_1_1_node.html

The member functions associated with child and parent are as follows:

Children and Parent
virtual void	AddChild (Node *child)
	Add a child node to the container, Z-order is 0. More...
virtual void	AddChild (Node *child, int localzorder)
	Add a child node to the container, and the parameter has a local z-axis order. More...
virtual void	AddChild (Node *child, int localzorder, int tag)
	Adds a child node to the container, with a z-axis order and a marker. More...
Virtual Node *	Getchildbytag (int tag)
	Gets a child node from the container through its markup. More...
Virtual vector< Node * > &	GetChildren ()
	Returns an array of child nodes. More...
Virtual Const vector< Node * > &	GetChildren () const
Virtual ssize_t	Getchildrencount () const
	Returns the total number of child nodes more ...
virtual void	SetParent (Node *parent)
	Set parent nodes sets the parent node more ...
Virtual Node *	GetParent ()
	Returns a pointer to the parent node. More...
Virtual Const NODE *	GetParent () const
virtual void	Removefromparent ()
	Removes a node from the parent node, with a cleanup parameter. If this node is a lone node, nothing will happen. More...
virtual void	Removefromparentandcleanup (bool cleanup)
	Remove a node from the parent node if the node is a lone node, nothing happens. More...
virtual void	RemoveChild (Node *child, bool cleanup=true)
	Removing a child from the container, depending on the cleanup parameter, clears all active actions. More...
virtual void	Removechildbytag (int tag, bool cleanup=true)
	Removes a child from a container by marking the value. Depending on the cleanup parameter, all active actions are cleared at the same time. More...
virtual void	Removeallchildren ()
	Remove all children from the container with a cleanup. More...
virtual void	Removeallchildrenwithcleanup (bool cleanup)
	Removing all children from the container, depending on the cleanup parameter, also clears all active actions. More...
virtual void	Reorderchild (Node *child, int localzorder)
	Reorder a child and set a new z-axis value. More...
virtual void	Sortallchildren ()
	Before painting, arrange all the child arrays once, rather than sorting each time you add or delete child nodes. This method can improve performance in a large number of ways. More...

I am also learning how to use the concrete. But what's more useful is that through this, you can call the node, a node tree in the game any point of nodes can be obtained through this method, easy game development.

As an example,

For example, a parkour game scene has three layers (animation, background, score) where the animation layer state changes, logically requiring another score layer to make a corresponding change, through the child and the parent method can quickly locate the score layer.

"The Learning experience of node class GetParent and Getchildbytag () in COCOS2DX"