Class: Entity

The entity class provides an abstract base class for all scene objects that are considered to have "existence" in the scene, which can be considered as actual objects with positions and sizes. Entity class is an abstract class and cannot be instantiated. If you want to instantiate it, please use the Object 3D class.

Hierarchy

• CEventDispatcher

  ↳ Entity

  ↳↳ Object3D

Constructors

• constructor

Properties

• name
• transform
• renderNode
• entityChildren
• components

Accessors

• instanceID
• numChildren
• bound

Methods

• getObjectByName
• addChild
• removeChild
• removeAllChild
• removeSelf
• removeChildByIndex
• hasChild
• removeFromParent
• getChildByIndex
• getChildByName
• destroy
• dispatchEvent
• addEventListener
• removeEventListener
• removeEventListenerAt
• removeAllEventListener
• containEventListener
• hasEventListener

Constructors

constructor

• new Entity(): Entity

Returns

Entity

Overrides

CEventDispatcher.constructor

Defined in

src/core/entities/Entity.ts:104

Properties

name

• name: string = ''

The name of the object. The default value is an empty string.

Defined in

src/core/entities/Entity.ts:24

---

transform

• transform: Transform

The Transform attached to this object.

Defined in

src/core/entities/Entity.ts:42

---

renderNode

• renderNode: RenderNode

Renderer components

Defined in

src/core/entities/Entity.ts:47

---

entityChildren

• entityChildren: Entity[]

An array containing sub objects of an object

Defined in

src/core/entities/Entity.ts:52

---

components

• components: Map<any, IComponent>

List of components attached to an object

Defined in

src/core/entities/Entity.ts:57

Accessors

instanceID

• get instanceID(): string

The unique identifier of the object.

Returns

string

Defined in

src/core/entities/Entity.ts:32

---

numChildren

• get numChildren(): number

Returns the number of child objects of an object

Returns

number

Defined in

src/core/entities/Entity.ts:116

---

bound

• get bound(): IBound

Returns

IBound

Defined in

src/core/entities/Entity.ts:275

• set bound(value): void

Parameters

Name	Type
value	IBound

Returns

void

Defined in

src/core/entities/Entity.ts:280

Methods

getObjectByName

▸ getObjectByName(name): Entity

Starting from the object itself, search for the object and its children, and return the first child object with a matching name. For most objects, the name is an empty string by default. You must manually set it to use this method.

Parameters

Name	Type	Description
name	string	input name

Returns

Entity

result Entity

Defined in

src/core/entities/Entity.ts:81

---

addChild

▸ addChild(child): Entity

Add an object as a child of this object. You can add any number of objects. Any current parent object on the object passed here will be deleted, as an object can only have at most one parent object.

Parameters

Name	Type	Description
child	Entity	target child entity

Returns

Entity

Defined in

src/core/entities/Entity.ts:127

---

removeChild

▸ removeChild(child): void

Remove the child objects of the object. You can remove any number of objects.

Parameters

Name	Type	Description
child	Entity	Removed objects

Returns

void

Defined in

src/core/entities/Entity.ts:151

---

removeAllChild

▸ removeAllChild(): void

Remove all children of the current object

Returns

void

Defined in

src/core/entities/Entity.ts:166

---

removeSelf

▸ removeSelf(): this

Remove the current node from the parent

Returns

this

this

Defined in

src/core/entities/Entity.ts:177

---

removeChildByIndex

▸ removeChildByIndex(index): void

Search for child nodes of objects and remove child objects with matching indexes.

Parameters

Name	Type	Description
index	number	assign index

Returns

void

Defined in

src/core/entities/Entity.ts:187

---

hasChild

▸ hasChild(child): boolean

Does the current object contain a certain object

Parameters

Name	Type	Description
child	Entity	certain object

Returns

boolean

boolean

Defined in

src/core/entities/Entity.ts:201

---

removeFromParent

▸ removeFromParent(): this

Remove the current node from the parent

Returns

this

this

Defined in

src/core/entities/Entity.ts:211

---

getChildByIndex

▸ getChildByIndex(index): Entity

Search for object children and return the first child object with a matching index.

Parameters

Name	Type	Description
index	number	matching index

Returns

Entity

child entity

Defined in

src/core/entities/Entity.ts:225

---

getChildByName

▸ getChildByName(name, loopChild?): any

Search for object children and return a child object with a matching name.

Parameters

Name	Type	Default value	Description
name	string	undefined	matching name
loopChild	boolean	true	Whether to traverse the children of the child object. The default value is true

Returns

any

result

Defined in

src/core/entities/Entity.ts:240

---

destroy

▸ destroy(force?): void

release current object

Parameters

Name	Type
force?	boolean

Returns

void

Overrides

CEventDispatcher.destroy

Defined in

src/core/entities/Entity.ts:333

---

dispatchEvent

▸ dispatchEvent(event): void

Dispatch an event to all registered objects with a specific type of listener.

Parameters

Name	Type
event	CEvent

Returns

void

Inherited from

CEventDispatcher.dispatchEvent

Defined in

src/event/CEventDispatcher.ts:24

---

addEventListener

▸ addEventListener(type, callback, thisObject, param?, priority?): number

register an event listener to event distancher.

Parameters

Name	Type	Default value	Description
type	string | number	undefined	{string} event type.
callback	Function	undefined	{Function} The callback function that handles events. This function must accept an Event3D object as its unique parameter and cannot return any result. for example: function(evt:Event3D):void.
thisObject	any	undefined	{any} Current registration object, it'll call callback function.
param	any	null	{any} the data binded to registered event, the default value is null.
priority	number	0	{number} The priority of callback function execution, with a larger set value having priority to call

Returns

number

Returns register event id

Inherited from

CEventDispatcher.addEventListener

Defined in

src/event/CEventDispatcher.ts:79

---

removeEventListener

▸ removeEventListener(type, callback, thisObject): void

Remove Event Listening

Parameters

Name	Type	Description
type	string | number	{string} event type
callback	Function	{Function} callback function of event register
thisObject	any	{any} The current registered object.

Returns

void

Inherited from

CEventDispatcher.removeEventListener

Defined in

src/event/CEventDispatcher.ts:113

---

removeEventListenerAt

▸ removeEventListenerAt(id): boolean

Remove an event Listening with id

Parameters

Name	Type
id	number

Returns

boolean

Inherited from

CEventDispatcher.removeEventListenerAt

Defined in

src/event/CEventDispatcher.ts:133

---

removeAllEventListener

▸ removeAllEventListener(eventType?): void

Specify a event type to remove all related event listeners eventType event type, set null to remove all event listeners

Parameters

Name	Type	Default value
eventType	string | number	null

Returns

void

Inherited from

CEventDispatcher.removeAllEventListener

Defined in

src/event/CEventDispatcher.ts:153

---

containEventListener

▸ containEventListener(type): boolean

whether the target presence of a listener with event type.

Parameters

Name	Type	Description
type	string	{string} event type.

Returns

boolean

Returns a boolean.

Inherited from

CEventDispatcher.containEventListener

Defined in

src/event/CEventDispatcher.ts:185

---

hasEventListener

▸ hasEventListener(type, callback?, thisObject?): boolean

whether the target presence of a listener with event type. it associate more registration parameters.

Parameters

Name	Type	Default value	Description
type	string | number	undefined	{string} event name.
callback	Function	null	{Function} callback function of event register.
thisObject	any	null	{any} The registered object.

Returns

boolean

Returns a boolean.

Inherited from

CEventDispatcher.hasEventListener

Defined in

src/event/CEventDispatcher.ts:198