Class: ParticleContainer

PIXI.ParticleContainer

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:

let container = new ParticleContainer();

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

And here you have a hundred sprites that will be rendered at the speed of light.

new PIXI.ParticleContainer (maxSize, properties, batchSize, autoResize)

Name Type Default Description
maxSize number 1500 optional

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

properties object optional

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

Name Type Default Description
vertices boolean false optional

When true, vertices be uploaded and applied. if sprite's scale/anchor/trim/frame/orig is dynamic, please set true.

position boolean true optional

When true, position be uploaded and applied.

rotation boolean false optional

When true, rotation be uploaded and applied.

uvs boolean false optional

When true, uvs be uploaded and applied.

tint boolean false optional

When true, alpha and tint be uploaded and applied.

batchSize number 16384 optional

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

autoResize boolean false optional

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

Extends

Members

_accessibleActive boolean inherited

TODO
  • Needs docs.

_accessibleDiv boolean inherited

TODO
  • Needs docs.

_bounds PIXI.Bounds protected inherited

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

_destroyed boolean protected inherited

If the object has been destroyed via destroy(). If true, it should not be used.

_lastSortedIndex number protected inherited

Which index in the children array the display component was before the previous zIndex sort. Used by containers to help sort objects with the same zIndex, by using previous array index as the decider.

_mask PIXI.Graphics | PIXI.Sprite protected inherited

The original, cached mask of the object.

_tempDisplayObjectParent PIXI.DisplayObject protected inherited

_zIndex number protected inherited

The zIndex of the displayObject. A higher value will mean it will be rendered on top of other displayObjects within the same container.

accessible boolean inherited

Flag for if the object is accessible. If true AccessibilityManager will overlay a shadow div with attributes set

accessibleHint string inherited

Sets the aria-label attribute of the shadow div

accessibleTitle string nullable inherited

Sets the title attribute of the shadow div If accessibleTitle AND accessibleHint has not been this will default to 'displayObject [tabIndex]'

alpha number inherited

The opacity of the object.

angle number inherited

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.

autoResize boolean

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

Default Value:
  • false

baseTexture PIXI.BaseTexture readonly

The texture used to render the children.

blendMode number

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

Default Value:
  • PIXI.BLEND_MODES.NORMAL
See:

buttonMode boolean inherited

If enabled, the mouse cursor use the pointer behavior when hovered over the displayObject if it is interactive Setting this changes the 'cursor' property to 'pointer'.

Example
const sprite = new PIXI.Sprite(texture);
sprite.interactive = true;
sprite.buttonMode = true;

cacheAsBitmap boolean inherited

Set this to true if you want this display object to be cached as a bitmap. This basically takes a snap shot of the display object as it is at that moment. It can provide a performance benefit for complex static displayObjects. To remove simply set this property to false

IMPORTANT GOTCHA - Make sure that all your textures are preloaded BEFORE setting this property to true as it will take a snapshot of what is currently there. If the textures have not loaded then they will not appear.

children Array.<PIXI.DisplayObject> readonly inherited

The array of children of this container.

cursor string inherited

This defines what cursor mode is used when the mouse cursor is hovered over the displayObject.

See:
Example
const sprite = new PIXI.Sprite(texture);
sprite.interactive = true;
sprite.cursor = 'wait';

filterArea PIXI.Rectangle nullable inherited

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 Array.<PIXI.Filter> nullable inherited

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'.

height number inherited

The height of the Container, setting this will actually modify the scale to achieve the value set

Interaction shape. Children will be hit first, then this shape will be checked. Setting this will cause this shape to be checked in hit tests rather than the displayObject's bounds.

Example
const sprite = new PIXI.Sprite(texture);
sprite.interactive = true;
sprite.hitArea = new PIXI.Rectangle(0, 0, 100, 100);

interactive boolean inherited

Enable interaction events for the DisplayObject. Touch, pointer and mouse events will not be emitted unless interactive is set to true.

Example
const sprite = new PIXI.Sprite(texture);
sprite.interactive = true;
sprite.on('tap', (event) => {
   //handle event
});

interactiveChildren boolean overrides

isSprite boolean inherited

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

localTransform PIXI.Matrix readonly inherited

Current transform of the object based on local factors: position, scale, other stuff.

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. 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.

TODO
  • At the moment, PIXI.CanvasRenderer doesn't support PIXI.Sprite as mask.
Example
const graphics = new PIXI.Graphics();
graphics.beginFill(0xFF3300);
graphics.drawRect(50, 250, 100, 100);
graphics.endFill();

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

name string inherited

The instance name of the object.

parent PIXI.Container readonly inherited

The display object container that contains this display object.

The pivot point of the displayObject that it rotates around. Assignment by value since pixi-v4.

The coordinate of the object relative to the local coordinates of the parent. Assignment by value since pixi-v4.

renderable boolean inherited

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.

rotation number inherited

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.

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 Value:
  • true

The scale factor of the object. Assignment by value since pixi-v4.

The skew factor for the object in radians. Assignment by value since pixi-v4.

sortableChildren boolean inherited

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 @link https://github.com/pixijs/pixi-display

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:

sortDirty boolean inherited

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.

tint number

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.
Default Value:
  • 0xFFFFFF

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 inherited

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.

width number inherited

The width of the Container, setting this will actually modify the scale to achieve the value set

worldAlpha number readonly inherited

The multiplied alpha of the displayObject.

worldTransform PIXI.Matrix readonly inherited

Current transform of the object based on world (parent) factors.

worldVisible boolean readonly inherited

Indicates if the object is globally visible.

x number inherited

The position of the displayObject on the x axis relative to the local coordinates of the parent. An alias to position.x

y number inherited

The position of the displayObject on the y axis relative to the local coordinates of the parent. An alias to position.y

zIndex number inherited

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 displayObjects within the same container.

Methods

_calculateBounds () protected inherited

Recalculates the bounds of the object. Override this to calculate the bounds of the specific object (not including children).

_recursivePostUpdateTransform () inherited

Recursively updates transform of all objects from the root to this one internal function for toLocal()

_render (renderer) protected inherited

To be overridden by the subclasses.

Name Type Description
renderer PIXI.Renderer

The renderer

_renderCanvas (renderer) protected inherited

To be overridden by the subclass

Name Type Description
renderer PIXI.CanvasRenderer

The renderer

Adds one or more children to the container.

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

Name Type Description
child PIXI.DisplayObject repeatable

The DisplayObject(s) to add to the container

Returns:
Type Description
PIXI.DisplayObject The first child that was added.

addChildAt (child, index)PIXI.DisplayObject inherited

Adds a child to the container at a specified index. If the index is out of bounds an error will be thrown

Name Type Description
child PIXI.DisplayObject

The child to add

index number

The index to place the child in

Returns:
Type Description
PIXI.DisplayObject The child that was added.

calculateBounds () inherited

Recalculates the bounds of the container.

Destroys the container

Name Type Description
options object | boolean optional

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

Name Type Default Description
children boolean false optional

if set to true, all the children will have their destroy method called as well. 'options' will be passed on to those calls.

texture boolean false optional

Only used for child Sprites if options.children is set to true Should it destroy the texture of the child sprite

baseTexture boolean false optional

Only used for child Sprites if options.children is set to true Should it destroy the base texture of the child sprite

getBounds (skipUpdate, rect)PIXI.Rectangle inherited

Retrieves the bounds of the displayObject as a rectangle object.

Name Type Description
skipUpdate boolean optional

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.

rect PIXI.Rectangle optional

Optional rectangle to store the result of the bounds calculation.

Returns:
Type Description
PIXI.Rectangle The rectangular bounding area.

Returns the child at the specified index

Name Type Description
index number

The index to get the child at

Returns:
Type Description
PIXI.DisplayObject The child at the given index, if any.

Returns the display object in the container.

Name Type Description
name string

Instance name.

Returns:
Type Description
PIXI.DisplayObject The child with the specified name.

getChildIndex (child)number inherited

Returns the index position of a child DisplayObject instance

Name Type Description
child PIXI.DisplayObject

The DisplayObject instance to identify

Returns:
Type Description
number The index position of the child display object to identify

getGlobalPosition (point, skipUpdate)PIXI.Point inherited

Returns the global position of the displayObject. Does not depend on object scale, rotation and pivot.

Name Type Default Description
point PIXI.Point new PIXI.Point() optional

The point to write the global value to.

skipUpdate boolean false optional

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.

Returns:
Type Description
PIXI.Point The updated point.

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

Name Type Description
rect PIXI.Rectangle optional

Optional rectangle to store the result of the bounds calculation.

Returns:
Type Description
PIXI.Rectangle The rectangular bounding area.

Removes one or more children from the container.

Name Type Description
child PIXI.DisplayObject repeatable

The DisplayObject(s) to remove

Returns:
Type Description
PIXI.DisplayObject The first child that was removed.

Removes a child from the specified index position.

Name Type Description
index number

The index to get the child from

Returns:
Type Description
PIXI.DisplayObject The child that was removed.

removeChildren (beginIndex, endIndex)Array.<PIXI.DisplayObject> inherited

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

Name Type Default Description
beginIndex number 0 optional

The beginning position.

endIndex number this.children.length optional

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

Returns:
Type Description
Array.<PIXI.DisplayObject> List of removed children

renderAdvanced (renderer) protected inherited

Render the object using the WebGL renderer and advanced features.

Name Type Description
renderer PIXI.Renderer

The renderer

renderAdvancedWebGL (renderer) Deprecated : since 5.0.0 inherited

Name Type Description
renderer PIXI.Renderer

Instance of renderer

See:

renderWebGL (renderer) Deprecated : since 5.0.0 inherited

Name Type Description
renderer PIXI.Renderer

Instance of renderer

See:

setChildIndex (child, index) inherited

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

Name Type Description
child PIXI.DisplayObject

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

index number

The resulting index number for the child display object

Set the parent Container of this DisplayObject.

Name Type Description
container PIXI.Container

The Container to add this DisplayObject to.

Returns:
Type Description
PIXI.Container The Container that this DisplayObject was added to.

setProperties (properties)

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

Name Type Description
properties object

The properties to be uploaded

setTransform (x, y, scaleX, scaleY, rotation, skewX, skewY, pivotX, pivotY)PIXI.DisplayObject inherited

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

Name Type Default Description
x number 0 optional

The X position

y number 0 optional

The Y position

scaleX number 1 optional

The X scale value

scaleY number 1 optional

The Y scale value

rotation number 0 optional

The rotation

skewX number 0 optional

The X skew value

skewY number 0 optional

The Y skew value

pivotX number 0 optional

The X pivot value

pivotY number 0 optional

The Y pivot value

Returns:
Type Description
PIXI.DisplayObject The DisplayObject instance

sortChildren () inherited

Sorts children by zIndex. Previous order is mantained for 2 children with the same zIndex.

swapChildren (child, child2) inherited

Swaps the position of 2 Display Objects within this container.

Name Type Description
child PIXI.DisplayObject

First display object to swap

child2 PIXI.DisplayObject

Second display object to swap

toGlobal (position, point, skipUpdate)PIXI.IPoint inherited

Calculates the global position of the display object.

Name Type Default Description
position PIXI.IPoint

The world origin to calculate from.

point PIXI.IPoint optional

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

skipUpdate boolean false optional

Should we skip the update transform.

Returns:
Type Description
PIXI.IPoint A point object representing the position of this object.

toLocal (position, from, point, skipUpdate)PIXI.IPoint inherited

Calculates the local position of the display object relative to another point.

Name Type Default Description
position PIXI.IPoint

The world origin to calculate from.

from PIXI.DisplayObject optional

The DisplayObject to calculate the global position from.

point PIXI.IPoint optional

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

skipUpdate boolean false optional

Should we skip the update transform

Returns:
Type Description
PIXI.IPoint A point object representing the position of this object

Events

Fired when this DisplayObject is added to a Container.

Name Type Description
container PIXI.Container

The container added to.

Fired when a pointer device button (usually a mouse left-button) is pressed and released on the display object. DisplayObject's interactive property must be set to true to fire event.

Name Type Description
event PIXI.interaction.InteractionEvent

Interaction event

Fired when a pointer device button (usually a mouse left-button) is pressed on the display. object. DisplayObject's interactive property must be set to true to fire event.

Name Type Description
event PIXI.interaction.InteractionEvent

Interaction event

Fired when a pointer device (usually a mouse) is moved while over the display object. DisplayObject's interactive property must be set to true to fire event.

Name Type Description
event PIXI.interaction.InteractionEvent

Interaction event

Fired when a pointer device (usually a mouse) is moved off the display object. DisplayObject's interactive property must be set to true to fire event.

Name Type Description
event PIXI.interaction.InteractionEvent

Interaction event

Fired when a pointer device (usually a mouse) is moved onto the display object. DisplayObject's interactive property must be set to true to fire event.

Name Type Description
event PIXI.interaction.InteractionEvent

Interaction event

Fired when a pointer device button (usually a mouse left-button) is released over the display object. DisplayObject's interactive property must be set to true to fire event.

Name Type Description
event PIXI.interaction.InteractionEvent

Interaction event

Fired when a pointer device button (usually a mouse left-button) is released outside the display object that initially registered a mousedown. DisplayObject's interactive property must be set to true to fire event.

Name Type Description
event PIXI.interaction.InteractionEvent

Interaction event

Fired when the operating system cancels a pointer event. DisplayObject's interactive property must be set to true to fire event.

Name Type Description
event PIXI.interaction.InteractionEvent

Interaction event

Fired when a pointer device button is pressed on the display object. DisplayObject's interactive property must be set to true to fire event.

Name Type Description
event PIXI.interaction.InteractionEvent

Interaction event

Fired when a pointer device is moved while over the display object. DisplayObject's interactive property must be set to true to fire event.

Name Type Description
event PIXI.interaction.InteractionEvent

Interaction event

Fired when a pointer device is moved off the display object. DisplayObject's interactive property must be set to true to fire event.

Name Type Description
event PIXI.interaction.InteractionEvent

Interaction event

Fired when a pointer device is moved onto the display object. DisplayObject's interactive property must be set to true to fire event.

Name Type Description
event PIXI.interaction.InteractionEvent

Interaction event

Fired when a pointer device button is pressed and released on the display object. DisplayObject's interactive property must be set to true to fire event.

Name Type Description
event PIXI.interaction.InteractionEvent

Interaction event

Fired when a pointer device button is released over the display object. DisplayObject's interactive property must be set to true to fire event.

Name Type Description
event PIXI.interaction.InteractionEvent

Interaction event

Fired when a pointer device button is released outside the display object that initially registered a pointerdown. DisplayObject's interactive property must be set to true to fire event.

Name Type Description
event PIXI.interaction.InteractionEvent

Interaction event

Fired when this DisplayObject is removed from a Container.

Name Type Description
container PIXI.Container

The container removed from.

Fired when a pointer device secondary button (usually a mouse right-button) is pressed and released on the display object. DisplayObject's interactive property must be set to true to fire event.

Name Type Description
event PIXI.interaction.InteractionEvent

Interaction event

Fired when a pointer device secondary button (usually a mouse right-button) is pressed on the display object. DisplayObject's interactive property must be set to true to fire event.

Name Type Description
event PIXI.interaction.InteractionEvent

Interaction event

Fired when a pointer device secondary button (usually a mouse right-button) is released over the display object. DisplayObject's interactive property must be set to true to fire event.

Name Type Description
event PIXI.interaction.InteractionEvent

Interaction event

Fired when a pointer device secondary button (usually a mouse right-button) is released outside the display object that initially registered a rightdown. DisplayObject's interactive property must be set to true to fire event.

Name Type Description
event PIXI.interaction.InteractionEvent

Interaction event

Fired when a touch point is placed and removed from the display object. DisplayObject's interactive property must be set to true to fire event.

Name Type Description
event PIXI.interaction.InteractionEvent

Interaction event

Fired when the operating system cancels a touch. DisplayObject's interactive property must be set to true to fire event.

Name Type Description
event PIXI.interaction.InteractionEvent

Interaction event

Fired when a touch point is removed from the display object. DisplayObject's interactive property must be set to true to fire event.

Name Type Description
event PIXI.interaction.InteractionEvent

Interaction event

Fired when a touch point is removed outside of the display object that initially registered a touchstart. DisplayObject's interactive property must be set to true to fire event.

Name Type Description
event PIXI.interaction.InteractionEvent

Interaction event

Fired when a touch point is moved along the display object. DisplayObject's interactive property must be set to true to fire event.

Name Type Description
event PIXI.interaction.InteractionEvent

Interaction event

Fired when a touch point is placed on the display object. DisplayObject's interactive property must be set to true to fire event.

Name Type Description
event PIXI.interaction.InteractionEvent

Interaction event