Class: DisplayObjectContainer

Extends

• PIXI.DisplayObject

Members

alpha : number

The alpha value of this DisplayObject. A value of 1 is fully opaque. A value of 0 is transparent. Please note that an object with an alpha value of 0 is skipped during the render pass.

The value of this property does not reflect any alpha values set further up the display list. To obtain that value please see the worldAlpha property.

Type:

• number

Inherited From:

• PIXI.DisplayObject#alpha

Default Value:

• 1

Source:

src/pixi/display/DisplayObject.js line 73

cacheAsBitmap : boolean

Sets if this DisplayObject should be cached as a bitmap.

When invoked it will take a snapshot of the DisplayObject, as it is at that moment, and store it in a RenderTexture. This is then used whenever this DisplayObject is rendered. It can provide a performance benefit for complex, but static, DisplayObjects. I.e. those with lots of children.

Transparent areas adjoining the edges may be removed (#283).

Cached Bitmaps do not track their parents. If you update a property of this DisplayObject, it will not re-generate the cached bitmap automatically. To do that you need to call DisplayObject.updateCache.

To remove a cached bitmap, set this property to null. Cache this DisplayObject as a Bitmap. Set to null to remove an existing cached bitmap.

Type:

• boolean

Inherited From:

• PIXI.DisplayObject#cacheAsBitmap

Source:

src/pixi/display/DisplayObject.js line 794

<readonly> children : Array(DisplayObject)

[read-only] The array of children of this container.

Type:

• Array(DisplayObject)

Source:

src/pixi/display/DisplayObjectContainer.js line 24

filterArea : Rectangle

The rectangular area used by filters when rendering a shader for this DisplayObject.

Type:

• Rectangle

Inherited From:

• PIXI.DisplayObject#filterArea

Source:

src/pixi/display/DisplayObject.js line 202

filters : Array

Sets the filters for this DisplayObject. This is a WebGL only feature, and is ignored by the Canvas Renderer. A filter is a shader applied to this DisplayObject. You can modify the placement of the filter using DisplayObject.filterArea.

To remove filters, set this property to null.

Note: You cannot have a filter set, and a MULTIPLY Blend Mode active, at the same time. Setting a filter will reset this DisplayObjects blend mode to NORMAL. An Array of Phaser.Filter objects, or objects that extend them.

Type:

• Array

Inherited From:

• PIXI.DisplayObject#filters

Source:

src/pixi/display/DisplayObject.js line 741

hitArea : Rectangle | Circle | Ellipse | Polygon

This is the defined area that will pick up mouse / touch events. It is null by default. Setting it is a neat way of optimising the hitTest function that the interactionManager will use (as it will not need to hit test all the children)

Type:

• Rectangle | Circle | Ellipse | Polygon

Inherited From:

• PIXI.DisplayObject#hitArea

Source:

src/pixi/display/DisplayObject.js line 96

ignoreChildInput : boolean

If ignoreChildInput is false it will allow this objects children to be considered as valid for Input events.

If this property is true then the children will not be considered as valid for Input events.

Note that this property isn't recursive: only immediate children are influenced, it doesn't scan further down.

Type:

• boolean

Source:

src/pixi/display/DisplayObjectContainer.js line 35

mask : Phaser.Graphics

Sets a mask for this DisplayObject. A mask is an instance of a Graphics object. When applied it limits the visible area of this DisplayObject to the shape of the mask. Under a Canvas renderer it uses shape clipping. Under a WebGL renderer it uses a Stencil Buffer. To remove a mask, set this property to null. The mask applied to this DisplayObject. Set to null to remove an existing mask.

Type:

• Phaser.Graphics

Inherited From:

• PIXI.DisplayObject#mask

Source:

src/pixi/display/DisplayObject.js line 706

<readonly> parent : PIXI.DisplayObjectContainer

The parent DisplayObjectContainer that this DisplayObject is a child of. All DisplayObjects must belong to a parent in order to be rendered. The root parent is the Stage object. This property is set automatically when the DisplayObject is added to, or removed from, a DisplayObjectContainer.

Type:

• PIXI.DisplayObjectContainer

Inherited From:

• PIXI.DisplayObject#parent

Source:

src/pixi/display/DisplayObject.js line 117

pivot : PIXI.Point

The pivot point of this DisplayObject that it rotates around. The values are expressed in pixel values.

Type:

• PIXI.Point

Inherited From:

• PIXI.DisplayObject#pivot

Source:

src/pixi/display/DisplayObject.js line 49

position : PIXI.Point

The coordinates, in pixels, of this DisplayObject, relative to its parent container.

The value of this property does not reflect any positioning happening further up the display list. To obtain that value please see the worldPosition property.

Type:

• PIXI.Point

Inherited From:

• PIXI.DisplayObject#position

Source:

src/pixi/display/DisplayObject.js line 29

renderable : boolean

Should this DisplayObject be rendered by the renderer? An object with a renderable value of false is skipped during the render pass.

Type:

• boolean

Inherited From:

• PIXI.DisplayObject#renderable

Source:

src/pixi/display/DisplayObject.js line 105

rotation : number

The rotation of this DisplayObject. The value is given, and expressed, in radians, and is based on a right-handed orientation.

The value of this property does not reflect any rotation happening further up the display list. To obtain that value please see the worldRotation property.

Type:

• number

Inherited From:

• PIXI.DisplayObject#rotation

Source:

src/pixi/display/DisplayObject.js line 61

scale : PIXI.Point

The scale of this DisplayObject. A scale of 1:1 represents the DisplayObject at its default size. A value of 0.5 would scale this DisplayObject by half, and so on.

The value of this property does not reflect any scaling happening further up the display list. To obtain that value please see the worldScale property.

Type:

• PIXI.Point

Inherited From:

• PIXI.DisplayObject#scale

Source:

src/pixi/display/DisplayObject.js line 41

visible : boolean

The visibility of this DisplayObject. A value of false makes the object invisible. A value of true makes it visible. Please note that an object with a visible value of false is skipped during the render pass. Equally a DisplayObject with visible false will not render any of its children.

The value of this property does not reflect any visible values set further up the display list. To obtain that value please see the worldVisible property.

Type:

• boolean

Inherited From:

• PIXI.DisplayObject#visible

Default Value:

• true

Source:

src/pixi/display/DisplayObject.js line 87

<readonly> worldAlpha : number

The multiplied alpha value of this DisplayObject. A value of 1 is fully opaque. A value of 0 is transparent. This value is the calculated total, based on the alpha values of all parents of this DisplayObjects in the display list.

To obtain, and set, the local alpha value, see the alpha property.

Note: This property is only updated at the end of the updateTransform call, once per render. Until that happens this property will contain values based on the previous frame. Be mindful of this if accessing this property outside of the normal game flow, i.e. from an asynchronous event callback.

Type:

• number

Inherited From:

• PIXI.DisplayObject#worldAlpha

Source:

src/pixi/display/DisplayObject.js line 133

<readonly> worldPosition : PIXI.Point

The coordinates, in pixels, of this DisplayObject within the world.

This property contains the calculated total, based on the positions of all parents of this DisplayObject in the display list.

Note: This property is only updated at the end of the updateTransform call, once per render. Until that happens this property will contain values based on the previous frame. Be mindful of this if accessing this property outside of the normal game flow, i.e. from an asynchronous event callback.

Type:

• PIXI.Point

Inherited From:

• PIXI.DisplayObject#worldPosition

Source:

src/pixi/display/DisplayObject.js line 163

<readonly> worldRotation : number

The rotation, in radians, of this DisplayObject.

This property contains the calculated total, based on the rotations of all parents of this DisplayObject in the display list.

Note: This property is only updated at the end of the updateTransform call, once per render. Until that happens this property will contain values based on the previous frame. Be mindful of this if accessing this property outside of the normal game flow, i.e. from an asynchronous event callback.

Type:

• number

Inherited From:

• PIXI.DisplayObject#worldRotation

Source:

src/pixi/display/DisplayObject.js line 193

<readonly> worldScale : PIXI.Point

The global scale of this DisplayObject.

This property contains the calculated total, based on the scales of all parents of this DisplayObject in the display list.

Note: This property is only updated at the end of the updateTransform call, once per render. Until that happens this property will contain values based on the previous frame. Be mindful of this if accessing this property outside of the normal game flow, i.e. from an asynchronous event callback.

Type:

• PIXI.Point

Inherited From:

• PIXI.DisplayObject#worldScale

Source:

src/pixi/display/DisplayObject.js line 178

<readonly> worldTransform : Phaser.Matrix

The current transform of this DisplayObject.

This property contains the calculated total, based on the transforms of all parents of this DisplayObject in the display list.

Note: This property is only updated at the end of the updateTransform call, once per render. Until that happens this property will contain values based on the previous frame. Be mindful of this if accessing this property outside of the normal game flow, i.e. from an asynchronous event callback.

Type:

• Phaser.Matrix

Inherited From:

• PIXI.DisplayObject#worldTransform

Source:

src/pixi/display/DisplayObject.js line 148

worldVisible : boolean

Indicates if this DisplayObject is visible, based on it, and all of its parents, visible property values.

Type:

• boolean

Inherited From:

• PIXI.DisplayObject#worldVisible

Source:

src/pixi/display/DisplayObject.js line 663

x : number

The horizontal position of the DisplayObject, in pixels, relative to its parent. If you need the world position of the DisplayObject, use DisplayObject.worldPosition instead.

Type:

• number

Inherited From:

• PIXI.DisplayObject#x

Source:

src/pixi/display/DisplayObject.js line 619

y : number

The vertical position of the DisplayObject, in pixels, relative to its parent. If you need the world position of the DisplayObject, use DisplayObject.worldPosition instead.

Type:

• number

Inherited From:

• PIXI.DisplayObject#y

Source:

src/pixi/display/DisplayObject.js line 641

Methods

addChild(child)

Adds a child to the container.

Parameters:

Name	Type	Description
child	DisplayObject	The DisplayObject to add to the container

Source:

src/pixi/display/DisplayObjectContainer.js line 42

Returns:

The child that was added.

Type

DisplayObject

addChildAt(child, index)

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

Parameters:

Name	Type	Description
child	DisplayObject	The child to add
index	Number	The index to place the child in

Source:

src/pixi/display/DisplayObjectContainer.js line 55

Returns:

The child that was added.

Type

DisplayObject

contains(child)

Determines whether the specified display object is a child of the DisplayObjectContainer instance or the instance itself.

Parameters:

Name	Type	Description
child	DisplayObject

Source:

src/pixi/display/DisplayObjectContainer.js line 449

Returns:

Type

boolean

destroy()

Destroy this DisplayObject.

Removes any cached sprites, sets renderable flag to false, and nulls filters, bounds and mask.

Also iteratively calls destroy on any children.

Inherited From:

• PIXI.DisplayObject#destroy

Source:

src/pixi/display/DisplayObject.js line 252

generateTexture( [resolution] [, scaleMode], renderer)

Generates a RenderTexture based on this DisplayObject, which can they be used to texture other Sprites. This can be useful if your DisplayObject is static, or complicated, and needs to be reused multiple times.

Please note that no garbage collection takes place on old textures. It is up to you to destroy old textures, and references to them, so they don't linger in memory.

Parameters:

Name	Type	Argument	Default	Description
resolution	number	<optional>	1	The resolution of the texture being generated.
scaleMode	number	<optional>	PIXI.scaleModes.DEFAULT	See {{#crossLink "PIXI/scaleModes:property"}}PIXI.scaleModes{{/crossLink}} for possible values.
renderer	PIXI.CanvasRenderer | PIXI.WebGLRenderer			The renderer used to generate the texture.

Inherited From:

• PIXI.DisplayObject#generateTexture

Source:

src/pixi/display/DisplayObject.js line 441

Returns:

• A RenderTexture containing an image of this DisplayObject at the time it was invoked.

Type

Phaser.RenderTexture

getBounds( [targetCoordinateSpace])

Retrieves the global bounds of the displayObjectContainer as a rectangle. The bounds calculation takes all visible children into consideration.

Parameters:

Name	Type	Argument	Description
targetCoordinateSpace	PIXI.DisplayObject | Phaser.Matrix	<optional>	Returns a rectangle that defines the area of the display object relative to the coordinate system of the targetCoordinateSpace object.

Source:

src/pixi/display/DisplayObjectContainer.js line 280

Returns:

The rectangular bounding area

Type

Rectangle

getChildAt(index)

Returns the child at the specified index

Parameters:

Name	Type	Description
index	Number	The index to get the child from

Source:

src/pixi/display/DisplayObjectContainer.js line 153

Returns:

The child at the given index, if any.

Type

DisplayObject

getChildIndex(child)

Returns the index position of a child DisplayObject instance

Parameters:

Name	Type	Description
child	DisplayObject	The DisplayObject instance to identify

Source:

src/pixi/display/DisplayObjectContainer.js line 112

Returns:

The index position of the child display object to identify

Type

Number

getLocalBounds()

Retrieves the non-global local bounds of the displayObjectContainer as a rectangle without any transformations. The calculation takes all visible children into consideration.

Source:

src/pixi/display/DisplayObjectContainer.js line 437

Returns:

The rectangular bounding area

Type

Rectangle

preUpdate()

To be overridden by classes that require it.

Inherited From:

• PIXI.DisplayObject#preUpdate

Source:

src/pixi/display/DisplayObject.js line 432

removeChild(child)

Removes a child from the container.

Parameters:

Name	Type	Description
child	DisplayObject	The DisplayObject to remove

Source:

src/pixi/display/DisplayObjectContainer.js line 171

Returns:

The child that was removed.

Type

DisplayObject

removeChildAt(index)

Removes a child from the specified index position.

Parameters:

Name	Type	Description
index	Number	The index to get the child from

Source:

src/pixi/display/DisplayObjectContainer.js line 191

Returns:

The child that was removed.

Type

DisplayObject

removeChildren(beginIndex, endIndex)

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

Parameters:

Name	Type	Description
beginIndex	Number	The beginning position. Default value is 0.
endIndex	Number	The ending position. Default value is size of the container.

Source:

src/pixi/display/DisplayObjectContainer.js line 213

setChildIndex(child, index)

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

Parameters:

Name	Type	Description
child	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

Source:

src/pixi/display/DisplayObjectContainer.js line 132

swapChildren(child, child2)

Swaps the position of 2 Display Objects within this container.

Parameters:

Name	Type	Description
child	DisplayObject
child2	DisplayObject

Source:

src/pixi/display/DisplayObjectContainer.js line 85

toGlobal(position)

Calculates the global position of this DisplayObject, based on the position given.

Parameters:

Name	Type	Description
position	PIXI.Point	The global position to calculate from.

Inherited From:

• PIXI.DisplayObject#toGlobal

Source:

src/pixi/display/DisplayObject.js line 483

Returns:

• A point object representing the position of this DisplayObject based on the global position given.

Type

PIXI.Point

toLocal(position [, from])

Calculates the local position of this DisplayObject, relative to another point.

Parameters:

Name	Type	Argument	Description
position	PIXI.Point		The world origin to calculate from.
from	PIXI.DisplayObject	<optional>	An optional DisplayObject to calculate the global position from.

Inherited From:

• PIXI.DisplayObject#toLocal

Source:

src/pixi/display/DisplayObject.js line 498

Returns:

• A point object representing the position of this DisplayObject based on the global position given.

Type

PIXI.Point

updateCache()

If this DisplayObject has a cached Sprite, this method generates and updates it.

Inherited From:

• PIXI.DisplayObject#updateCache

Source:

src/pixi/display/DisplayObject.js line 469

Returns:

• A reference to this DisplayObject.

Type

PIXI.DisplayObject

updateTransform( [parent])

Updates the transform matrix this DisplayObject uses for rendering.

If the object has no parent, and no parent parameter is provided, it will default to Phaser.Game.World as the parent transform to use. If that is unavailable the transform fails to take place.

The parent parameter has priority over the actual parent. Use it as a parent override. Setting it does not change the actual parent of this DisplayObject.

Calling this method updates the worldTransform, worldAlpha, worldPosition, worldScale and worldRotation properties.

If a transformCallback has been specified, it is called at the end of this method, and is passed the new, updated, worldTransform property, along with the parent transform used.

Parameters:

Name	Type	Argument	Description
parent	PIXI.DisplayObjectContainer	<optional>	Optional parent to calculate this DisplayObjects transform from.

Inherited From:

• PIXI.DisplayObject#updateTransform

Overrides:

• PIXI.DisplayObject#updateTransform

Source:

src/pixi/display/DisplayObject.js line 289

Returns:

• A reference to this DisplayObject.

Type

PIXI.DisplayObject