Class ParticleContainer<T>

The ParticleContainer class is a really fast version of the Container built solely for speed, so use when you need a lot of sprites or particles.

The tradeoff of the ParticleContainer is that most advanced functionality will not work. ParticleContainer implements the basic object transform (position, scale, rotation) and some advanced functionality like tint (as of v4.5.6).

Other more advanced functionality like masking, children, filters, etc will not work on sprites in this batch.

It's extremely easy to use. And here you have a hundred sprites that will be rendered at the speed of light.

Example

import { ParticleContainer, Sprite } from 'pixi.js';

const container = new ParticleContainer();

for (let i = 0; i < 100; ++i)
{
let sprite = Sprite.from('myImage.png');
container.addChild(sprite);
}

Memberof

PIXI

Type Parameters

Hierarchy (view full)

Constructors

Properties

Accessors

Methods

Constructors

  • Type Parameters

    Parameters

    • Optional maxSize: number

      The maximum number of particles that can be rendered by the container. Affects size of allocated buffers.

    • Optional properties: IParticleProperties

      The properties of children that should be uploaded to the gpu and applied.

    • Optional batchSize: number

      Number of particles per batch. If less than maxSize, it uses maxSize instead.

    • Optional autoResize: boolean

      If true, container allocates more batches in case there are more than maxSize particles.

    Returns ParticleContainer<T>

Properties

_accessibleActive?: boolean
_accessibleDiv?: IAccessibleHTMLElement
_bounds: Bounds

The bounds object, this is used to calculate and store the bounds of the displayObject.

_cacheAsBitmap: boolean
_cacheAsBitmapMultisample: MSAA_QUALITY
_cacheAsBitmapResolution: number
_cacheData: CacheData
_internalEventMode: EventMode
_internalInteractive: boolean
_localBounds: Bounds

Local bounds object, swapped with _bounds when using getLocalBounds().

accessible?: boolean
accessibleChildren?: boolean
accessibleHint?: string
accessiblePointerEvents?: PointerEvents
accessibleTitle?: string
accessibleType?: string
alpha: number

The opacity of the object.

autoResize: boolean

If true, container allocates more batches in case there are more than maxSize particles.

Default

false

The texture used to render the children.

blendMode: BLEND_MODES

The blend mode to be applied to the sprite. Apply a value of PIXI.BLEND_MODES.NORMAL to reset the blend mode.

Default

PIXI.BLEND_MODES.NORMAL
cacheAsBitmap: boolean
cacheAsBitmapMultisample: MSAA_QUALITY
cacheAsBitmapResolution: number
children: T[]

The array of children of this container.

containerUpdateTransform: (() => void)

Type declaration

    • (): void
    • Returns void

cullArea: Rectangle

If set, this shape is used for culling instead of the bounds of this object. It can improve the culling performance of objects with many children. The culling area is defined in local space.

cullable: boolean

Should this object be rendered if the bounds of this object are out of frame?

Culling has no effect on whether updateTransform is called.

cursor: string

The cursor preferred when the mouse pointer is hovering over.

displayObjectUpdateTransform: (() => void)

Type declaration

    • (): void
    • Returns void

eventMode: EventMode

The mode of interaction for this object

filterArea: Rectangle

The area the filter is applied to. This is used as more of an optimization rather than figuring out the dimensions of the displayObject each frame you can set this rectangle.

Also works as an interaction mask.

filters: null | Pixi.Filter[]

Sets the filters for the displayObject. IMPORTANT: This is a WebGL only feature and will be ignored by the canvas renderer. To remove filters simply set this property to 'null'.

hitArea: null | IHitArea

The hit-area specifies the area for which pointer events should be captured by this event target.

interactive: boolean

Whether this event target should fire UI events.

interactiveChildren: boolean

Whether this event target has any children that need UI events. This can be used optimize event propagation.

isInteractive: (() => boolean)

Returns true if the DisplayObject has interactive 'static' or 'dynamic'

Type declaration

    • (): boolean
    • Returns boolean

isMask: boolean

Does any other displayObject use this object as a mask?

isSprite: boolean

Used to fast check if a sprite is.. a sprite!

name: null | string

Handler for 'click' event

onglobalmousemove: null | FederatedEventHandler<FederatedPointerEvent>

Handler for 'globalmousemove' event

onglobalpointermove: null | FederatedEventHandler<FederatedPointerEvent>

Handler for 'globalpointermove' event

onglobaltouchmove: null | FederatedEventHandler<FederatedPointerEvent>

Handler for 'globaltouchmove' event

Handler for 'mousedown' event

Handler for 'mouseenter' event

Handler for 'mouseleave' event

Handler for 'mousemove' event

Handler for 'mouseout' event

Handler for 'mouseover' event

Handler for 'mouseup' event

Handler for 'mouseupoutside' event

Handler for 'pointercancel' event

Handler for 'pointerdown' event

Handler for 'pointerenter' event

Handler for 'pointerleave' event

Handler for 'pointermove' event

Handler for 'pointerout' event

Handler for 'pointerover' event

Handler for 'pointertap' event

Handler for 'pointerup' event

onpointerupoutside: null | FederatedEventHandler<FederatedPointerEvent>

Handler for 'pointerupoutside' event

Handler for 'rightclick' event

Handler for 'rightdown' event

Handler for 'rightup' event

Handler for 'rightupoutside' event

Handler for 'tap' event

Handler for 'touchcancel' event

Handler for 'touchend' event

ontouchendoutside: null | FederatedEventHandler<FederatedPointerEvent>

Handler for 'touchendoutside' event

Handler for 'touchmove' event

Handler for 'touchstart' event

Handler for 'wheel' event

The display object container that contains this display object.

renderId?: number
renderable: boolean

Can this object be rendered, if false the object will not be drawn but the updateTransform methods will still be called.

Only affects recursive calls from parent. You can ask for bounds manually.

roundPixels: boolean

If true PixiJS will Math.floor() x/y values when rendering, stopping pixel interpolation. Advantages can include sharper image quality (like text) and faster rendering on canvas. The main disadvantage is movement of objects may appear less smooth. Default to true here as performance is usually the priority for particles.

Default

true
sortDirty: boolean

Should children be sorted by zIndex at the next updateTransform call.

Will get automatically set to true if a new child is added, or if a child's zIndex changes.

sortableChildren: boolean

If set to true, the container will sort its children by zIndex value when updateTransform() is called, or manually if sortChildren() is called.

This actually changes the order of elements in the array, so should be treated as a basic solution that is not performant compared to other solutions, such as PixiJS Layers

Also be aware of that this may not work nicely with the addChildAt() function, as the zIndex sorting may cause the child to automatically sorted to another position.

See

PIXI.Container.defaultSortableChildren

tabIndex?: number
tintRgb: Float32Array
transform: Transform

World transform and local transform of this object. This will become read-only later, please do not assign anything there unless you know what are you doing.

visible: boolean

The visibility of the object. If false the object will not be drawn, and the updateTransform function will not be called.

Only affects recursive calls from parent. You can ask for bounds or call updateTransform manually.

worldAlpha: number

The multiplied alpha of the displayObject.

defaultSortableChildren: boolean

Sets the default value for the container property sortableChildren. If set to true, the container will sort its children by zIndex value when updateTransform() is called, or manually if sortChildren() is called.

This actually changes the order of elements in the array, so should be treated as a basic solution that is not performant compared to other solutions, such as PixiJS Layers.

Also be aware of that this may not work nicely with the addChildAt() function, as the zIndex sorting may cause the child to automatically sorted to another position.

Static

prefixed: string | boolean

Accessors

  • get angle(): number
  • The angle of the object in degrees. 'rotation' and 'angle' have the same effect on a display object; rotation is in radians, angle is in degrees.

    Returns number

  • set angle(value): void
  • Parameters

    • value: number

    Returns void

  • get destroyed(): boolean
  • Readonly flag for destroyed display objects.

    Returns boolean

  • get height(): number
  • The height of the Container, setting this will actually modify the scale to achieve the value set.

    Returns number

  • set height(value): void
  • Parameters

    • value: number

    Returns void

  • get localTransform(): Matrix
  • Current transform of the object based on local factors: position, scale, other stuff.

    Returns Matrix

  • get mask(): null | Container<DisplayObject> | MaskData
  • Sets a mask for the displayObject. A mask is an object that limits the visibility of an object to the shape of the mask applied to it. In PixiJS a regular mask must be a PIXI.Graphics or a PIXI.Sprite object. This allows for much faster masking in canvas as it utilities shape clipping. Furthermore, a mask of an object must be in the subtree of its parent. Otherwise, getLocalBounds may calculate incorrect bounds, which makes the container's width and height wrong. To remove a mask, set this property to null.

    For sprite mask both alpha and red channel are used. Black mask is the same as transparent mask.

    Returns null | Container<DisplayObject> | MaskData

    Example

    import { Graphics, Sprite } from 'pixi.js';

    const graphics = new Graphics();
    graphics.beginFill(0xFF3300);
    graphics.drawRect(50, 250, 100, 100);
    graphics.endFill();

    const sprite = new Sprite(texture);
    sprite.mask = graphics;

    Todo

    At the moment, CanvasRenderer doesn't support Sprite as mask.

  • set mask(value): void
  • Parameters

    Returns void

  • get pivot(): ObservablePoint<any>
  • The center of rotation, scaling, and skewing for this display object in its local space. The position is the projection of pivot in the parent's local space.

    By default, the pivot is the origin (0, 0).

    Returns ObservablePoint<any>

    Since

    4.0.0

  • set pivot(value): void
  • Parameters

    Returns void

  • get position(): ObservablePoint<any>
  • The coordinate of the object relative to the local coordinates of the parent.

    Returns ObservablePoint<any>

    Since

    4.0.0

  • set position(value): void
  • Parameters

    Returns void

  • get rotation(): number
  • The rotation of the object in radians. 'rotation' and 'angle' have the same effect on a display object; rotation is in radians, angle is in degrees.

    Returns number

  • set rotation(value): void
  • Parameters

    • value: number

    Returns void

  • get scale(): ObservablePoint<any>
  • The scale factors of this object along the local coordinate axes.

    The default scale is (1, 1).

    Returns ObservablePoint<any>

    Since

    4.0.0

  • set scale(value): void
  • Parameters

    Returns void

  • get skew(): ObservablePoint<any>
  • The skew factor for the object in radians.

    Returns ObservablePoint<any>

    Since

    4.0.0

  • set skew(value): void
  • Parameters

    Returns void

  • get tint(): ColorSource
  • The tint applied to the container. This is a hex value. A value of 0xFFFFFF will remove any tint effect. IMPORTANT: This is a WebGL only feature and will be ignored by the canvas renderer.

    Returns ColorSource

    Default

    0xFFFFFF
    
  • set tint(value): void
  • Parameters

    Returns void

  • get width(): number
  • The width of the Container, setting this will actually modify the scale to achieve the value set.

    Returns number

  • set width(value): void
  • Parameters

    • value: number

    Returns void

  • get worldTransform(): Matrix
  • Current transform of the object based on world (parent) factors.

    Returns Matrix

  • get worldVisible(): boolean
  • Indicates if the object is globally visible.

    Returns boolean

  • get x(): number
  • The position of the displayObject on the x axis relative to the local coordinates of the parent. An alias to position.x

    Returns number

  • set x(value): void
  • Parameters

    • value: number

    Returns void

  • get y(): number
  • The position of the displayObject on the y axis relative to the local coordinates of the parent. An alias to position.y

    Returns number

  • set y(value): void
  • Parameters

    • value: number

    Returns void

  • get zIndex(): number
  • The zIndex of the displayObject.

    If a container has the sortableChildren property set to true, children will be automatically sorted by zIndex value; a higher value will mean it will be moved towards the end of the array, and thus rendered on top of other display objects within the same container.

    Returns number

    See

    PIXI.Container#sortableChildren

  • set zIndex(value): void
  • Parameters

    • value: number

    Returns void

Methods

  • Returns void

  • Parameters

    Returns void

  • Adds one or more children to the container.

    Multiple items can be added like so: myContainer.addChild(thingOne, thingTwo, thingThree)

    Type Parameters

    • U extends T[]

    Parameters

    • Rest ...children: U

      The DisplayObject(s) to add to the container

    Returns U[0]

    • The first child that was added.
  • Adds a child to the container at a specified index. If the index is out of bounds an error will be thrown. If the child is already in this container, it will be moved to the specified index.

    Type Parameters

    Parameters

    • child: U

      The child to add.

    • index: number

      The absolute index where the child will be positioned at the end of the operation.

    Returns U

    The child that was added.

  • Type Parameters

    • K extends (keyof FederatedEventMap) | (keyof GlobalFederatedEventMap)

    Parameters

    • type: K
    • listener: ((e) => any)
    • Optional options: AddListenerOptions

    Returns void

  • Parameters

    • type: string
    • listener: EventListenerOrEventListenerObject
    • Optional options: AddListenerOptions

    Returns void

  • Recalculates the bounds of the container.

    This implementation will automatically fit the children's bounds into the calculation. Each child's bounds is limited to its mask's bounds or filterArea, if any is applied.

    Returns void

  • Destroys the container

    Parameters

    • Optional options: boolean | IDestroyOptions

      Options parameter. A boolean will act as if all options have been set to that value

    Returns void

  • Pair method for enableTempParent

    Parameters

    Returns void

  • Dispatches a synthetic event event to target and returns true if either event's cancelable attribute value is false or its preventDefault() method was not invoked, and false otherwise.

    MDN Reference

    Parameters

    • event: Event

    Returns boolean

  • Dispatches a synthetic event event to target and returns true if either event's cancelable attribute value is false or its preventDefault() method was not invoked, and false otherwise.

    MDN Reference

    Parameters

    • event: Event

    Returns boolean

  • Returns void

  • Used in Renderer, cacheAsBitmap and other places where you call an updateTransform on root.

    const cacheParent = elem.enableTempParent();
    elem.updateTransform();
    elem.disableTempParent(cacheParent);

    Returns Container<DisplayObject>

    • Current parent
  • Calculates and returns the (world) bounds of the display object as a [Rectangle]PIXI.Rectangle.

    This method is expensive on containers with a large subtree (like the stage). This is because the bounds of a container depend on its children's bounds, which recursively causes all bounds in the subtree to be recalculated. The upside, however, is that calling getBounds once on a container will indeed update the bounds of all children (the whole subtree, in fact). This side effect should be exploited by using displayObject._bounds.getRectangle() when traversing through all the bounds in a scene graph. Otherwise, calling getBounds on each object in a subtree will cause the total cost to increase quadratically as its height increases.

    The transforms of all objects in a container's subtree and of all ancestors are updated. The world bounds of all display objects in a container's subtree will also be recalculated.

    The _bounds object stores the last calculation of the bounds. You can use to entirely skip bounds calculation if needed.

    const lastCalculatedBounds = displayObject._bounds.getRectangle(optionalRect);
    

    Do know that usage of getLocalBounds can corrupt the _bounds of children (the whole subtree, actually). This is a known issue that has not been solved. See [getLocalBounds]PIXI.DisplayObject#getLocalBounds for more details.

    getBounds should be called with skipUpdate equal to true in a render() call. This is because the transforms are guaranteed to be update-to-date. In fact, recalculating inside a render() call may cause corruption in certain cases.

    Parameters

    • Optional skipUpdate: boolean

      Setting to true will stop the transforms of the scene graph from being updated. This means the calculation returned MAY be out of date BUT will give you a nice performance boost.

    • Optional rect: Rectangle

      Optional rectangle to store the result of the bounds calculation.

    Returns Rectangle

    • The minimum axis-aligned rectangle in world space that fits around this object.
  • Returns the child at the specified index

    Parameters

    • index: number

      The index to get the child at

    Returns T

    • The child at the given index, if any.
  • Type Parameters

    Parameters

    • name: string
    • Optional deep: boolean

    Returns null | T

  • Returns the index position of a child DisplayObject instance

    Parameters

    • child: T

      The DisplayObject instance to identify

    Returns number

    • The index position of the child display object to identify
  • Parameters

    • Optional point: Point
    • Optional skipUpdate: boolean

    Returns Point

  • Retrieves the local bounds of the displayObject as a rectangle object.

    Calling getLocalBounds may invalidate the _bounds of the whole subtree below. If using it inside a render() call, it is advised to call getBounds() immediately after to recalculate the world bounds of the subtree.

    Parameters

    • Optional rect: Rectangle

      Optional rectangle to store the result of the bounds calculation.

    • Optional skipChildrenUpdate: boolean

      Setting to true will stop re-calculation of children transforms, it was default behaviour of pixi 4.0-5.2 and caused many problems to users.

    Returns Rectangle

    • The rectangular bounding area.
  • Return the number of listeners listening to a given event.

    Parameters

    Returns number

  • Return the listeners registered for a given event.

    Type Parameters

    Parameters

    • event: T

    Returns ((...args) => void)[]

  • Type Parameters

    Parameters

    Returns this

  • Add a listener for a given event.

    Type Parameters

    Parameters

    Returns this

  • Add a one-time listener for a given event.

    Type Parameters

    Parameters

    Returns this

  • Remove all listeners, or those of the specified event.

    Parameters

    • Optional event: keyof DisplayObjectEvents

    Returns this

  • Removes one or more children from the container.

    Type Parameters

    • U extends T[]

    Parameters

    • Rest ...children: U

      The DisplayObject(s) to remove

    Returns U[0]

    The first child that was removed.

  • Removes a child from the specified index position.

    Parameters

    • index: number

      The index to get the child from

    Returns T

    The child that was removed.

  • Removes all children from this container that are within the begin and end indexes.

    Parameters

    • Optional beginIndex: number

      The beginning position.

    • Optional endIndex: number

      The ending position. Default value is size of the container.

    Returns T[]

    • List of removed children
  • Type Parameters

    • K extends (keyof FederatedEventMap) | (keyof GlobalFederatedEventMap)

    Parameters

    • type: K
    • listener: ((e) => any)
    • Optional options: RemoveListenerOptions

    Returns void

  • Parameters

    • type: string
    • listener: EventListenerOrEventListenerObject
    • Optional options: RemoveListenerOptions

    Returns void

  • Remove the DisplayObject from its parent Container. If the DisplayObject has no parent, do nothing.

    Returns void

  • Remove the listeners of a given event.

    Type Parameters

    Parameters

    Returns this

  • Renders the container using the WebGL renderer.

    Parameters

    Returns void

  • Changes the position of an existing child in the display object container

    Parameters

    • child: T

      The child DisplayObject instance for which you want to change the index number

    • index: number

      The resulting index number for the child display object

    Returns void

  • Sets the private properties array to dynamic / static based on the passed properties object

    Parameters

    Returns void

  • Convenience function to set the position, scale, skew and pivot at once.

    Parameters

    • Optional x: number

      The X position

    • Optional y: number

      The Y position

    • Optional scaleX: number

      The X scale value

    • Optional scaleY: number

      The Y scale value

    • Optional rotation: number

      The rotation

    • Optional skewX: number

      The X skew value

    • Optional skewY: number

      The Y skew value

    • Optional pivotX: number

      The X pivot value

    • Optional pivotY: number

      The Y pivot value

    Returns this

    • The DisplayObject instance
  • Sorts children by zIndex. Previous order is maintained for 2 children with the same zIndex.

    Returns void

  • Swaps the position of 2 Display Objects within this container.

    Parameters

    • child: T

      First display object to swap

    • child2: T

      Second display object to swap

    Returns void

  • Calculates the global position of the display object.

    Type Parameters

    Parameters

    • position: IPointData

      The world origin to calculate from.

    • Optional point: P

      A Point object in which to store the value, optional (otherwise will create a new Point).

    • Optional skipUpdate: boolean

      Should we skip the update transform.

    Returns P

    • A point object representing the position of this object.
  • Calculates the local position of the display object relative to another point.

    Type Parameters

    Parameters

    • position: IPointData

      The world origin to calculate from.

    • Optional from: DisplayObject

      The DisplayObject to calculate the global position from.

    • Optional point: P

      A Point object in which to store the value, optional (otherwise will create a new Point).

    • Optional skipUpdate: boolean

      Should we skip the update transform

    Returns P

    • A point object representing the position of this object
  • Updates the transform on all children of this container for rendering.

    Returns void

  • Mixes all enumerable properties and methods from a source object to DisplayObject.

    Parameters

    • source: Dict<any>

      The source of properties and methods to mix in.

    Returns void

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