Node Class

Extends _BaseNode

Module: cc

Class of all entities in Cocos Creator scenes.
Node also inherits from Event Target, it permits Node to dispatch events. For events supported by Node, please refer to Node.EventType

Index

Properties

• groupIndex Integer Group index of node....
• group String Group of node....
• position Vec2 The position (x, y) of the node in its parent's coordinates.
• x Number x axis position of node.
• y Number y axis position of node.
• rotation Number Rotation of node.
• rotationX Number Rotation on x axis.
• rotationY Number Rotation on y axis.
• scaleX Number Scale on x axis.
• scaleY Number Scale on y axis.
• skewX Number Skew x
• skewY Number Skew y
• opacity Number Opacity of node, default value is 255.
• cascadeOpacity Boolean Indicate whether node's opacity value affect its child nodes, default value is true.
• color Color Color of node, default value is white: (255, 255, 255).
• anchorX Number Anchor point's position on x axis.
• anchorY Number Anchor point's position on y axis.
• width Number Width of node.
• height Number Height of node.
• zIndex Number Z order in depth which stands for the drawing order.
• _sgNode _ccsg.Node Current scene graph node for this node.
• _sizeProvider _ccsg.Node Current active size provider for this node.
• scale Number The local scale relative to the parent.
• _components Component[]
• _prefab PrefabInfo The PrefabInfo object
• _persistNode Boolean If true, the node is an persist node which won't be destroyed during scene transition.
• name String Name of node.
• uuid String The uuid for editor, will be stripped before building project.
• children Node[] All children nodes.
• childrenCount Number All children nodes.
• active Boolean The local active state of this node....
• activeInHierarchy Boolean Indicates whether this node is active in the scene.
• tag Number Tag of node.
• __eventTargets EventTarget[] Register all related EventTargets,...
• parent Node The parent of the node.
• _name String
• _objFlags Number
• isValid Boolean Indicates whether the object is not yet destroyed.

Methods

• constructor
• on Register a callback of a specific event type on Node....
• off Removes the callback previously registered with the same type, callback, target and or useCapture.
• targetOff Removes all callbacks previously registered with the same target.
• pauseSystemEvents Pause node related system events registered with the current Node.
• resumeSystemEvents Resume node related system events registered with the current Node.
• runAction The node becomes the action's target.
• pauseAllActions Pause all actions running on the current node.
• resumeAllActions Resume all paused actions on the current node.
• stopAllActions Stops and removes all actions from the running action list .
• stopAction Stops and removes an action from the running action list.
• stopActionByTag Removes an action from the running action list by its tag.
• getActionByTag Returns an action from the running action list by its tag.
• getNumberOfRunningActions Composable actions are counted as 1 action.
• getPosition Returns a copy of the position (x, y) of the node in its parent's coordinates.
• setPosition Sets the position (x, y) of the node in its parent's coordinates....
• getScale Returns the scale factor of the node.
• setScale Sets the scale factor of the node.
• getContentSize Returns a copy the untransformed size of the node.
• setContentSize All nodes has a size.
• setOpacityModifyRGB Set whether color should be changed with the opacity value,...
• isOpacityModifyRGB Get whether color should be changed with the opacity value.
• getAnchorPoint It's like a pin in the node where it is "attached" to its parent.
• setAnchorPoint Sets the anchor point in percent.
• getAnchorPointInPoints Returns a copy of the anchor point in absolute pixels.
• getDisplayedOpacity Returns the displayed opacity of Node,...
• getDisplayedColor Returns the displayed color of Node,...
• getNodeToParentTransformAR Returns the matrix that transform the node's (local) space coordinates into the parent's space coordinates....
• getBoundingBox Returns a "local" axis aligned bounding box of the node.
• getBoundingBoxToWorld Returns a "world" axis aligned bounding box of the node....
• getNodeToParentTransform Returns the matrix that transform the node's (local) space coordinates into the parent's space coordinates....
• getNodeToWorldTransform Returns the world affine transform matrix.
• getNodeToWorldTransformAR Returns the world affine transform matrix.
• getParentToNodeTransform The matrix is in Pixels.
• getWorldToNodeTransform Returns the inverse world affine transform matrix.
• convertToNodeSpace Converts a Point to node (local) space coordinates.
• convertToWorldSpace Converts a Point to world space coordinates.
• convertToNodeSpaceAR Converts a Point to node (local) space coordinates.
• convertToWorldSpaceAR Converts a local Point to world space coordinates.The result is in Points....
• convertTouchToNodeSpace convenience methods which take a cc.Touch instead of cc.Vec2.
• convertTouchToNodeSpaceAR converts a cc.Touch (world coordinates) into a local coordinate.
• addChild Adds a child to the node with z order and tag.
• cleanup Stops all running actions and schedulers.
• sortAllChildren Sorts the children array depends on children's zIndex and arrivalOrder,...
• getPositionX Returns the x axis position of the node in cocos2d coordinates.
• setPositionX Sets the x axis position of the node in cocos2d coordinates.
• getPositionY Returns the y axis position of the node in cocos2d coordinates.
• setPositionY Sets the y axis position of the node in cocos2d coordinates.
• getLocalZOrder Returns the local Z order of this node.
• setLocalZOrder LocalZOrder is the 'key' used to sort the node relative to its siblings.
• isCascadeOpacityEnabled Returns whether node's opacity value affect its child nodes.
• setCascadeOpacityEnabled Enable or disable cascade opacity, if cascade enabled, child nodes' opacity will be the multiplication of parent opacity and its own opacity.
• attr Properties configuration function </br>...
• getChildByTag Returns a child from the container given its tag.
• getChildByUuid Returns a child from the container given its uuid.
• getChildByName Returns a child from the container given its name.
• insertChild Inserts a child to the node at a specified index.
• getSiblingIndex Get the sibling index.
• setSiblingIndex Set the sibling index of this node.
• removeFromParent Remove itself from its parent node.
• removeChild Removes a child from the container.
• removeChildByTag Removes a child from the container by tag value.
• removeAllChildren Removes all children from the container and do a cleanup all running actions depending on the cleanup parameter.
• isChildOf Is this node a child of the given node?
• getComponent Returns the component of supplied type if the node has one attached, null if it doesn't....
• getComponents Returns all components of supplied type in the node.
• getComponentInChildren Returns the component of supplied type in any of its children using depth first search.
• getComponentsInChildren Returns all components of supplied type in self or any of its children.
• addComponent Adds a component class to the node.
• _addComponentAt This api should only used by undo system
• removeComponent Removes a component identified by the given name or removes the component object given.
• _getDependComponent
• destroyAllChildren Destroy all children from the node, and release all their own references to other objects....
• once Register an callback of a specific event type on the EventTarget,...
• dispatchEvent Dispatches an event into the event flow.
• emit Send an event to this object directly, this method will not propagate the event to any other objects.
• destroy Actual object destruction will delayed until before rendering.
• _destruct Clear all references in the instance.
• _onPreDestroy Called before the object being destroyed.
• _serialize The customized serialization for this object.
• _deserialize Init this object from the custom serialized data.

Events

• position-changed
• size-changed
• anchor-changed
• child-added
• child-removed
• child-reorder
• group-changed
• touchstart
• active-in-hierarchy-changed Note: This event is only emitted from the top most node whose active value did changed,...

Details

Properties

groupIndex

Group index of node.
Which Group this node belongs to will resolve that this node's collision components can collide with which other collision componentns.

group

Group of node.
Which Group this node belongs to will resolve that this node's collision components can collide with which other collision componentns.

position

The position (x, y) of the node in its parent's coordinates.

Examples

cc.log("Node Position: " + node.position);

x

x axis position of node.

Examples

node.x = 100;
cc.log("Node Position X: " + node.x);

y

y axis position of node.

Examples

node.y = 100;
cc.log("Node Position Y: " + node.y);

rotation

Rotation of node.

Examples

node.rotation = 90;
cc.log("Node Rotation: " + node.rotation);

rotationX

Rotation on x axis.

Examples

node.rotationX = 45;
cc.log("Node Rotation X: " + node.rotationX);

rotationY

Rotation on y axis.

Examples

node.rotationY = 45;
cc.log("Node Rotation Y: " + node.rotationY);

scaleX

Scale on x axis.

Examples

node.scaleX = 0.5;
cc.log("Node Scale X: " + node.scaleX);

scaleY

Scale on y axis.

Examples

node.scaleY = 0.5;
cc.log("Node Scale Y: " + node.scaleY);

skewX

Skew x

Examples

node.skewX = 0;
cc.log("Node SkewX: " + node.skewX);

skewY

Skew y

Examples

node.skewY = 0;
cc.log("Node SkewY: " + node.skewY);

opacity

Opacity of node, default value is 255.

Examples

node.opacity = 255;

cascadeOpacity

Indicate whether node's opacity value affect its child nodes, default value is true.

Examples

cc.log("CascadeOpacity: " + node.cascadeOpacity);

color

Color of node, default value is white: (255, 255, 255).

Examples

node.color = new cc.Color(255, 255, 255);

anchorX

Anchor point's position on x axis.

Examples

node.anchorX = 0;

anchorY

Anchor point's position on y axis.

Examples

node.anchorY = 0;

width

Width of node.

Examples

node.width = 100;

height

Height of node.

Examples

node.height = 100;

zIndex

Z order in depth which stands for the drawing order.

Examples

node.zIndex = 1;
cc.log("Node zIndex: " + node.zIndex);

_sgNode

Current scene graph node for this node.

_sizeProvider

Current active size provider for this node. Size provider can equals to this._sgNode.

scale

The local scale relative to the parent.

Examples

node.scale = 1;

_components

_prefab

The PrefabInfo object

_persistNode

If true, the node is an persist node which won't be destroyed during scene transition. If false, the node will be destroyed automatically when loading a new scene. Default is false.

name

Name of node.

Examples

node.name = "New Node";
cc.log("Node Name: " + node.name);

uuid

The uuid for editor, will be stripped before building project.

Examples

cc.log("Node Uuid: " + node.uuid);

children

All children nodes.

Examples

var children = node.children;
for (var i = 0; i < children.length; ++i) {
    cc.log("Node: " + children[i]);
}

childrenCount

All children nodes.

Examples

var count = node.childrenCount;
cc.log("Node Children Count: " + count);

active

The local active state of this node.
Note that a Node may be inactive because a parent is not active, even if this returns true.
Use Node/activeInHierarchy:property if you want to check if the Node is actually treated as active in the scene.

Examples

node.active = false;

activeInHierarchy

Indicates whether this node is active in the scene.

Examples

cc.log("activeInHierarchy: " + node.activeInHierarchy);

tag

Tag of node.

Examples

node.tag = 1001;

__eventTargets

Register all related EventTargets, all event callbacks will be removed in _onPreDestroy

parent

The parent of the node.

Examples

node.parent = newNode;

_name

_objFlags

isValid

Indicates whether the object is not yet destroyed. (It will not be available after being destroyed)
When an object's destroy is called, it is actually destroyed after the end of this frame. So isValid will return false from the next frame, while isValid in the current frame will still be true. If you want to determine whether the current frame has called destroy, use cc.isValid(obj, true), but this is often caused by a particular logical requirements, which is not normally required.

Examples

var node = new cc.Node();
cc.log(node.isValid);    // true
node.destroy();
cc.log(node.isValid);    // true, still valid in this frame
// after a frame...
cc.log(node.isValid);    // false, destroyed in the end of last frame

Methods

constructor

Parameters

• name String

on

Register a callback of a specific event type on Node.
Use this method to register touch or mouse event permit propagation based on scene graph, you can propagate the event to the parents or swallow it by calling stopPropagation on the event.
It's the recommended way to register touch/mouse event for Node, please do not use cc.eventManager directly for Node.

Parameters

• type String A string representing the event type to listen for.
  

                   See <a href="../classes/Node.html#event_position-changed" class="crosslink">Node Events</a> for all builtin events.
  

• callback Function The callback that will be invoked when the event is dispatched.

                         The callback is ignored if it is a duplicate (the callbacks are unique).
  

  • event Event event
• target Object The target (this object) to invoke the callback, can be null
• useCapture Boolean When set to true, the capture argument prevents callback

                         from being invoked when the event's eventPhase attribute value is BUBBLING_PHASE.
                         When false, callback will NOT be invoked when event's eventPhase attribute value is CAPTURING_PHASE.
                         Either way, callback will be invoked when event's eventPhase attribute value is AT_TARGET.
  

Examples

this.node.on(cc.Node.EventType.TOUCH_START, this.memberFunction, this);  // if "this" is component and the "memberFunction" declared in CCClass.
node.on(cc.Node.EventType.TOUCH_START, callback, this.node);
node.on(cc.Node.EventType.TOUCH_MOVE, callback, this.node);
node.on(cc.Node.EventType.TOUCH_END, callback, this.node);
node.on(cc.Node.EventType.TOUCH_CANCEL, callback, this.node);
node.on("anchor-changed", callback, this);

off

Removes the callback previously registered with the same type, callback, target and or useCapture. This method is merely an alias to removeEventListener.

Parameters

• type String A string representing the event type being removed.
• callback Function The callback to remove.
• target Object The target (this object) to invoke the callback, if it's not given, only callback without target will be removed
• useCapture Boolean Specifies whether the callback being removed was registered as a capturing callback or not.

                         If not specified, useCapture defaults to false. If a callback was registered twice,
                         one with capture and one without, each must be removed separately. Removal of a capturing callback
                         does not affect a non-capturing version of the same listener, and vice versa.
  

Examples

this.node.off(cc.Node.EventType.TOUCH_START, this.memberFunction, this);
node.off(cc.Node.EventType.TOUCH_START, callback, this.node);
node.off("anchor-changed", callback, this);

targetOff

Removes all callbacks previously registered with the same target.

Parameters

• target Object The target to be searched for all related callbacks

Examples

node.targetOff(target);

pauseSystemEvents

Pause node related system events registered with the current Node. Node system events includes touch and mouse events. If recursive is set to true, then this API will pause the node system events for the node and all nodes in its sub node tree. Reference: http://cocos2d-x.org/docs/editors_and_tools/creator-chapters/scripting/internal-events/

Parameters

• recursive Boolean Whether to pause node system events on the sub node tree.

Examples

node.pauseSystemEvents(true);

resumeSystemEvents

Resume node related system events registered with the current Node. Node system events includes touch and mouse events. If recursive is set to true, then this API will resume the node system events for the node and all nodes in its sub node tree. Reference: http://cocos2d-x.org/docs/editors_and_tools/creator-chapters/scripting/internal-events/

Parameters

• recursive Boolean Whether to resume node system events on the sub node tree.

Examples

node.resumeSystemEvents(true);

runAction

Executes an action, and returns the action that is executed.
The node becomes the action's target. Refer to cc.Action's getTarget()
Calling runAction while the node is not active won't have any effect.
Note：You shouldn't modify the action after runAction, that won't take any effect.
if you want to modify, when you define action plus.

Parameters

• action Action

Examples

var action = cc.scaleTo(0.2, 1, 0.6);
node.runAction(action);
node.runAction(action).repeatForever(); // fail
node.runAction(action.repeatForever()); // right

pauseAllActions

Pause all actions running on the current node. Equals to cc.director.getActionManager().pauseTarget(node).

Examples

node.pauseAllActions();

resumeAllActions

Resume all paused actions on the current node. Equals to cc.director.getActionManager().resumeTarget(node).

Examples

node.resumeAllActions();

stopAllActions

Stops and removes all actions from the running action list .

Examples

node.stopAllActions();

stopAction

Stops and removes an action from the running action list.

Parameters

• action Action An action object to be removed.

Examples

var action = cc.scaleTo(0.2, 1, 0.6);
node.stopAction(action);

stopActionByTag

Removes an action from the running action list by its tag.

Parameters

• tag Number A tag that indicates the action to be removed.

Examples

node.stopAction(1);

getActionByTag

Returns an action from the running action list by its tag.

Parameters

• tag Number

Examples

var action = node.getActionByTag(1);

getNumberOfRunningActions

Returns the numbers of actions that are running plus the ones that are schedule to run (actions in actionsToAdd and actions arrays).
Composable actions are counted as 1 action. Example:
If you are running 1 Sequence of 7 actions, it will return 1.
If you are running 7 Sequences of 2 actions, it will return 7.</p>

Examples

var count = node.getNumberOfRunningActions();
cc.log("Running Action Count: " + count);

getPosition

Returns a copy of the position (x, y) of the node in its parent's coordinates.

Examples

cc.log("Node Position: " + node.getPosition());

setPosition

Sets the position (x, y) of the node in its parent's coordinates.
Usually we use cc.v2(x, y) to compose cc.Vec2 object.
and Passing two numbers (x, y) is more efficient than passing cc.Vec2 object.

Parameters

• newPosOrX Vec2 | Number X coordinate for position or the position (x, y) of the node in coordinates
• y Number Y coordinate for position

Examples

node.setPosition(cc.v2(0, 0));
node.setPosition(0, 0);

getScale

Returns the scale factor of the node. Assertion will fail when _scaleX != _scaleY.

Examples

cc.log("Node Scale: " + node.getScale());

setScale

Sets the scale factor of the node. 1.0 is the default scale factor. This function can modify the X and Y scale at the same time.

Parameters

• scaleX Number | Vec2 scaleX or scale
• scaleY Number

Examples

node.setScale(cc.v2(1, 1));
node.setScale(1, 1);

getContentSize

Returns a copy the untransformed size of the node.
The contentSize remains the same no matter the node is scaled or rotated.
All nodes has a size. Layer and Scene has the same size of the screen by default.

Parameters

• ignoreSizeProvider Boolean true if you need to get the original size of the node

Examples

cc.log("Content Size: " + node.getContentSize());

setContentSize

Sets the untransformed size of the node.
The contentSize remains the same no matter the node is scaled or rotated.
All nodes has a size. Layer and Scene has the same size of the screen.

Parameters

• size Size | Number The untransformed size of the node or The untransformed size's width of the node.
• height Number The untransformed size's height of the node.

Examples

node.setContentSize(cc.size(100, 100));
node.setContentSize(100, 100);

setOpacityModifyRGB

Set whether color should be changed with the opacity value, useless in ccsg.Node, but this function is override in some class to have such behavior.

Parameters

• opacityValue Boolean

Examples

node.setOpacityModifyRGB(true);

isOpacityModifyRGB

Get whether color should be changed with the opacity value.

Examples

var hasChange = node.isOpacityModifyRGB();

getAnchorPoint

Returns a copy of the anchor point.
Anchor point is the point around which all transformations and positioning manipulations take place.
It's like a pin in the node where it is "attached" to its parent.
The anchorPoint is normalized, like a percentage. (0,0) means the bottom-left corner and (1,1) means the top-right corner.
But you can use values higher than (1,1) and lower than (0,0) too.
The default anchor point is (0.5,0.5), so it starts at the center of the node.

Examples

cc.log("Node AnchorPoint: " + node.getAnchorPoint());

setAnchorPoint

Sets the anchor point in percent.
anchor point is the point around which all transformations and positioning manipulations take place.
It's like a pin in the node where it is "attached" to its parent.
The anchorPoint is normalized, like a percentage. (0,0) means the bottom-left corner and (1,1) means the top-right corner.
But you can use values higher than (1,1) and lower than (0,0) too.
The default anchor point is (0.5,0.5), so it starts at the center of the node.

Parameters

• point Vec2 | Number The anchor point of node or The x axis anchor of node.
• y Number The y axis anchor of node.

Examples

node.setAnchorPoint(cc.v2(1, 1));
node.setAnchorPoint(1, 1);

getAnchorPointInPoints

Returns a copy of the anchor point in absolute pixels.
you can only read it. If you wish to modify it, use setAnchorPoint.

Examples

cc.log("AnchorPointInPoints: " + node.getAnchorPointInPoints());

getDisplayedOpacity

Returns the displayed opacity of Node, the difference between displayed opacity and opacity is that displayed opacity is calculated based on opacity and parent node's opacity when cascade opacity enabled.

Examples

var displayOpacity = node.getDisplayedOpacity();

getDisplayedColor

Returns the displayed color of Node, the difference between displayed color and color is that displayed color is calculated based on color and parent node's color when cascade color enabled.

Examples

var displayColor = node.getDisplayedColor();

getNodeToParentTransformAR

Returns the matrix that transform the node's (local) space coordinates into the parent's space coordinates.
The matrix is in Pixels.
This method is AR (Anchor Relative).

Examples

var affineTransform = node.getNodeToParentTransformAR();

getBoundingBox

Returns a "local" axis aligned bounding box of the node.
The returned box is relative only to its parent.

Examples

var boundingBox = node.getBoundingBox();

getBoundingBoxToWorld

Returns a "world" axis aligned bounding box of the node.
The bounding box contains self and active children's world bounding box.

Examples

var newRect = node.getBoundingBoxToWorld();

getNodeToParentTransform

Returns the matrix that transform the node's (local) space coordinates into the parent's space coordinates.
The matrix is in Pixels.

Examples

var affineTransform = node.getNodeToParentTransform();

getNodeToWorldTransform

Returns the world affine transform matrix. The matrix is in Pixels.

Examples

var affineTransform = node.getNodeToWorldTransform();

getNodeToWorldTransformAR

Returns the world affine transform matrix. The matrix is in Pixels.
This method is AR (Anchor Relative).

Examples

var mat = node.getNodeToWorldTransformAR();

getParentToNodeTransform

Returns the matrix that transform parent's space coordinates to the node's (local) space coordinates.
The matrix is in Pixels. The returned transform is readonly and cannot be changed.

Examples

var affineTransform = node.getParentToNodeTransform();

getWorldToNodeTransform

Returns the inverse world affine transform matrix. The matrix is in Pixels. 返回世界坐标系到节点坐标系的逆矩阵。

Examples

var affineTransform = node.getWorldToNodeTransform();

convertToNodeSpace

Converts a Point to node (local) space coordinates. The result is in Vec2.

Parameters

• worldPoint Vec2

Examples

var newVec2 = node.convertToNodeSpace(cc.v2(100, 100));

convertToWorldSpace

Converts a Point to world space coordinates. The result is in Points.

Parameters

• nodePoint Vec2

Examples

var newVec2 = node.convertToWorldSpace(cc.v2(100, 100));

convertToNodeSpaceAR

Converts a Point to node (local) space coordinates. The result is in Points.
treating the returned/received node point as anchor relative.

Parameters

• worldPoint Vec2

Examples

var newVec2 = node.convertToNodeSpaceAR(cc.v2(100, 100));

convertToWorldSpaceAR

Converts a local Point to world space coordinates.The result is in Points.
treating the returned/received node point as anchor relative.

Parameters

• nodePoint Vec2

Examples

var newVec2 = node.convertToWorldSpaceAR(cc.v2(100, 100));

convertTouchToNodeSpace

convenience methods which take a cc.Touch instead of cc.Vec2.

Parameters

• touch Touch The touch object

Examples

var newVec2 = node.convertTouchToNodeSpace(touch);

convertTouchToNodeSpaceAR

converts a cc.Touch (world coordinates) into a local coordinate. This method is AR (Anchor Relative).

Parameters

• touch Touch The touch object

Examples

var newVec2 = node.convertTouchToNodeSpaceAR(touch);

addChild

Adds a child to the node with z order and tag.

Parameters

• child Node A child node
• localZOrder Number Z order for drawing priority. Please refer to setZOrder(int)
• tag Number | String An integer or a name to identify the node easily. Please refer to setTag(int) and setName(string)

Examples

node.addChild(newNode, 1, 1001);

cleanup

Stops all running actions and schedulers.

Examples

node.cleanup();

sortAllChildren

Sorts the children array depends on children's zIndex and arrivalOrder, normally you won't need to invoke this function.

getPositionX

Returns the x axis position of the node in cocos2d coordinates.

Examples

var posX = node.getPositionX();

setPositionX

Sets the x axis position of the node in cocos2d coordinates.

Parameters

• x Number

Examples

node.setPositionX(1);

getPositionY

Returns the y axis position of the node in cocos2d coordinates.

Examples

var posY = node.getPositionY();

setPositionY

Sets the y axis position of the node in cocos2d coordinates.

Parameters

• y Number The new position in y axis

Examples

node.setPositionY(100);

getLocalZOrder

Returns the local Z order of this node.

Examples

var localZorder = node.getLocalZOrder();

setLocalZOrder

LocalZOrder is the 'key' used to sort the node relative to its siblings.

The Node's parent will sort all its children based ont the LocalZOrder value.
If two nodes have the same LocalZOrder, then the node that was added first to the children's array
will be in front of the other node in the array.
Also, the Scene Graph is traversed using the "In-Order" tree traversal algorithm ( http://en.wikipedia.org/wiki/Tree_traversal#In-order )
And Nodes that have LocalZOder values smaller than 0 are the "left" subtree
While Nodes with LocalZOder greater than 0 are the "right" subtree.

Parameters

• localZOrder Number

Examples

node.setLocalZOrder(1);

isCascadeOpacityEnabled

Returns whether node's opacity value affect its child nodes.

Examples

cc.log(node.isCascadeOpacityEnabled());

setCascadeOpacityEnabled

Enable or disable cascade opacity, if cascade enabled, child nodes' opacity will be the multiplication of parent opacity and its own opacity.

Parameters

• cascadeOpacityEnabled Boolean

Examples

node.setCascadeOpacityEnabled(true);

attr

Properties configuration function </br> All properties in attrs will be set to the node, </br> when the setter of the node is available, </br> the property will be set via setter function.</br>

Parameters

• attrs Object Properties to be set to node

Examples

var attrs = { key: 0, num: 100 };
node.attr(attrs);

getChildByTag

Returns a child from the container given its tag.

Parameters

• aTag Number An identifier to find the child node.

Examples

var child = node.getChildByTag(1001);

getChildByUuid

Returns a child from the container given its uuid.

Parameters

• uuid String The uuid to find the child node.

Examples

var child = node.getChildByUuid(uuid);

getChildByName

Returns a child from the container given its name.

Parameters

• name String A name to find the child node.

Examples

var child = node.getChildByName("Test Node");

insertChild

Inserts a child to the node at a specified index.

Parameters

• child Node the child node to be inserted
• siblingIndex Number the sibling index to place the child in

Examples

node.insertChild(child, 2);

getSiblingIndex

Get the sibling index.

Examples

var index = node.getSiblingIndex();

setSiblingIndex

Set the sibling index of this node.

Parameters

• index Number

Examples

node.setSiblingIndex(1);

removeFromParent

Remove itself from its parent node. If cleanup is true, then also remove all events and actions.
If the cleanup parameter is not passed, it will force a cleanup, so it is recommended that you always pass in the false parameter when calling this API.
If the node orphan, then nothing happens.

Parameters

• cleanup Boolean true if all actions and callbacks on this node should be removed, false otherwise.

Examples

node.removeFromParent();
node.removeFromParent(false);

removeChild

Removes a child from the container. It will also cleanup all running actions depending on the cleanup parameter. </p> If the cleanup parameter is not passed, it will force a cleanup.
"remove" logic MUST only be on this method
If a class wants to extend the 'removeChild' behavior it only needs
to override this method.

Parameters

• child Node The child node which will be removed.
• cleanup Boolean true if all running actions and callbacks on the child node will be cleanup, false otherwise.

Examples

node.removeChild(newNode);
node.removeChild(newNode, false);

removeChildByTag

Removes a child from the container by tag value. It will also cleanup all running actions depending on the cleanup parameter. If the cleanup parameter is not passed, it will force a cleanup.

Parameters

• tag Number An integer number that identifies a child node
• cleanup Boolean true if all running actions and callbacks on the child node will be cleanup, false otherwise.

Examples

node.removeChildByTag(1001);
node.removeChildByTag(1001, false);

removeAllChildren

Removes all children from the container and do a cleanup all running actions depending on the cleanup parameter.
If the cleanup parameter is not passed, it will force a cleanup.

Parameters

• cleanup Boolean true if all running actions on all children nodes should be cleanup, false otherwise.

Examples

node.removeAllChildren();
node.removeAllChildren(false);

isChildOf

Is this node a child of the given node?

Parameters

• parent Node

Examples

node.isChildOf(newNode);

getComponent

Returns the component of supplied type if the node has one attached, null if it doesn't.
You can also get component in the node by passing in the name of the script.

Parameters

• typeOrClassName Function | String

Examples

// get sprite component.
var sprite = node.getComponent(cc.Sprite);
// get custom test calss.
var test = node.getComponent("Test");

getComponents

Returns all components of supplied type in the node.

Parameters

• typeOrClassName Function | String

Examples

var sprites = node.getComponents(cc.Sprite);
var tests = node.getComponents("Test");

getComponentInChildren

Returns the component of supplied type in any of its children using depth first search.

Parameters

• typeOrClassName Function | String

Examples

var sprite = node.getComponentInChildren(cc.Sprite);
var Test = node.getComponentInChildren("Test");

getComponentsInChildren

Returns all components of supplied type in self or any of its children.

Parameters

• typeOrClassName Function | String

Examples

var sprites = node.getComponentsInChildren(cc.Sprite);
var tests = node.getComponentsInChildren("Test");

addComponent

Adds a component class to the node. You can also add component to node by passing in the name of the script.

Parameters

• typeOrClassName Function | String The constructor or the class name of the component to add

Examples

var sprite = node.addComponent(cc.Sprite);
var test = node.addComponent("Test");

_addComponentAt

This api should only used by undo system

Parameters

• comp Component
• index Number

removeComponent

Removes a component identified by the given name or removes the component object given. You can also use component.destroy() if you already have the reference.

Parameters

• component String | Function | Component The need remove component.

Examples

node.removeComponent(cc.Sprite);
var Test = require("Test");
node.removeComponent(Test);

_getDependComponent

Parameters

• depended Component

destroyAllChildren

Destroy all children from the node, and release all their own references to other objects.
Actual destruct operation will delayed until before rendering.

Examples

node.destroyAllChildren();

once

Register an callback of a specific event type on the EventTarget, the callback will remove itself after the first time it is triggered.

Parameters

• type String A string representing the event type to listen for.
• callback Function The callback that will be invoked when the event is dispatched.

                         The callback is ignored if it is a duplicate (the callbacks are unique).
  

  • event Event event
• target Object The target (this object) to invoke the callback, can be null
• useCapture Boolean When set to true, the capture argument prevents callback

                         from being invoked when the event's eventPhase attribute value is BUBBLING_PHASE.
                         When false, callback will NOT be invoked when event's eventPhase attribute value is CAPTURING_PHASE.
                         Either way, callback will be invoked when event's eventPhase attribute value is AT_TARGET.
  

Examples

node.once(cc.Node.EventType.TOUCH_END, function (event) {
    cc.log("this is callback");
}, node);

dispatchEvent

Dispatches an event into the event flow. The event target is the EventTarget object upon which the dispatchEvent() method is called.

Parameters

• event Event The Event object that is dispatched into the event flow

emit

Send an event to this object directly, this method will not propagate the event to any other objects. The event will be created from the supplied message, you can get the "detail" argument from event.detail.

Parameters

• message String the message to send
• detail Any whatever argument the message needs

destroy

Destroy this Object, and release all its own references to other objects.
Actual object destruction will delayed until before rendering. From the next frame, this object is not usable any more. You can use cc.isValid(obj) to check whether the object is destroyed before accessing it.

Examples

obj.destroy();

_destruct

Clear all references in the instance.

NOTE: this method will not clear the getter or setter functions which defined in the instance of CCObject. You can override the _destruct method if you need, for example: _destruct: function () { for (var key in this) { if (this.hasOwnProperty(key)) { switch (typeof this[key]) { case 'string': this[key] = ''; break; case 'object': case 'function': this[key] = null; break; } } }

_onPreDestroy

Called before the object being destroyed.

_serialize

The customized serialization for this object. (Editor Only)

Parameters

• exporting Boolean

_deserialize

Init this object from the custom serialized data.

Parameters

• data Object the serialized json data
• ctx _Deserializer

Events

position-changed Event

Module: cc

Index

Details

size-changed Event

Module: cc

Index

Details

anchor-changed Event

Module: cc

Index

Details

child-added Event

Module: cc

Index

Details

child-removed Event

Module: cc

Index

Details

child-reorder Event

Module: cc

Index

Details

group-changed Event

Module: cc

Index

Details

touchstart Event

Module: cc

Index

Details

active-in-hierarchy-changed Event

Module: cc Parent Module: cc

Note: This event is only emitted from the top most node whose active value did changed, not including its child nodes.

Index

Details