Phaser

Class: Image

Phaser. Image

Create a new Image object. An Image is a light-weight object you can use to display anything that doesn't need physics or animation. It can still rotate, scale, crop and receive input events. This makes it perfect for logos, backgrounds, simple buttons and other non-Sprite graphics.

new Image(game, x, y, key, frame)

Parameters:
Name Type Description
game Phaser.Game

A reference to the currently running game.
x number

The x coordinate of the Imaget. The coordinate is relative to any parent container this Image may be in.
y number

The y coordinate of the Image. The coordinate is relative to any parent container this Image may be in.
key string | Phaser.RenderTexture | Phaser.BitmapData | PIXI.Texture

The texture used by the Image during rendering. It can be a string which is a reference to the Cache entry, or an instance of a RenderTexture, BitmapData or PIXI.Texture.
frame string | number

If this Image is using part of a sprite sheet or texture atlas you can specify the exact frame to use by giving a string or numeric index.
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Members

angle

Indicates the rotation of the Image, in degrees, from its original orientation. Values from 0 to 180 represent clockwise rotation; values from 0 to -180 represent counterclockwise rotation. Values outside this range are added to or subtracted from 360 to obtain a value within the range. For example, the statement player.angle = 450 is the same as player.angle = 90. If you wish to work in radians instead of degrees use the property Image.rotation instead. Working in radians is also a little faster as it doesn't have to convert the angle.

Properties:
Name Type Description
angle number

The angle of this Image in degrees.
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autoCull

Should this Image be automatically culled if out of range of the camera? A culled sprite has its renderable property set to 'false'. Be advised this is quite an expensive operation, as it has to calculate the bounds of the object every frame, so only enable it if you really need it.

Properties:
Name Type Description
autoCull boolean

A flag indicating if the Image should be automatically camera culled or not.
Default Value:
  • false
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cameraOffset

Properties:
Name Type Description
cameraOffset Phaser.Point

If this object is fixedToCamera then this stores the x/y offset that its drawn at, from the top-left of the camera view.
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<readonly> deltaX

Returns the delta x value. The difference between world.x now and in the previous step.

Properties:
Name Type Description
deltaX number

The delta value. Positive if the motion was to the right, negative if to the left.
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<readonly> deltaY

Returns the delta y value. The difference between world.y now and in the previous step.

Properties:
Name Type Description
deltaY number

The delta value. Positive if the motion was downwards, negative if upwards.
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<readonly> deltaZ

Returns the delta z value. The difference between rotation now and in the previous step.

Properties:
Name Type Description
deltaZ number

The delta value.
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events

Properties:
Name Type Description
events Phaser.Events

The Events you can subscribe to that are dispatched when certain things happen on this Image or its components.
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exists

Properties:
Name Type Description
exists boolean

If exists = false then the Image isn't updated by the core game loop.
Default Value:
  • true
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fixedToCamera

An Image that is fixed to the camera uses its x/y coordinates as offsets from the top left of the camera. These are stored in Image.cameraOffset. Note that the cameraOffset values are in addition to any parent in the display list. So if this Image was in a Group that has x: 200, then this will be added to the cameraOffset.x

Properties:
Name Type Description
fixedToCamera boolean

Set to true to fix this Image to the Camera at its current world coordinates.
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frame

Properties:
Name Type Description
frame number

Gets or sets the current frame index and updates the Texture for display.
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frameName

Properties:
Name Type Description
frameName string

Gets or sets the current frame by name and updates the Texture for display.
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game

Properties:
Name Type Description
game Phaser.Game

A reference to the currently running Game.
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<readonly> inCamera

Checks if the Image bounds are within the game camera, otherwise false if fully outside of it.

Properties:
Name Type Description
inCamera boolean

True if the Image bounds is within the game camera, even if only partially. Otherwise false if fully outside of it.
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input

Properties:
Name Type Description
input Phaser.InputHandler | null

The Input Handler for this object. Needs to be enabled with image.inputEnabled = true before you can use it.
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inputEnabled

By default an Image won't process any input events at all. By setting inputEnabled to true the Phaser.InputHandler is activated for this object and it will then start to process click/touch events and more.

Properties:
Name Type Description
inputEnabled boolean

Set to true to allow this object to receive input events.
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<readonly> inWorld

Checks if the Image bounds are within the game world, otherwise false if fully outside of it.

Properties:
Name Type Description
inWorld boolean

True if the Image bounds is within the game world, even if only partially. Otherwise false if fully outside of it.
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key

Properties:
Name Type Description
key string | Phaser.RenderTexture | Phaser.BitmapData | PIXI.Texture

This is the image or texture used by the Image during rendering. It can be a string which is a reference to the Cache entry, or an instance of a RenderTexture, BitmapData or PIXI.Texture.
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name

Properties:
Name Type Description
name string

The user defined name given to this Image.
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<readonly> renderOrderID

Properties:
Name Type Description
renderOrderID number

The render order ID, reset every frame.
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smoothed

Enable or disable texture smoothing for this Image. Only works for bitmap/image textures. Smoothing is enabled by default.

Properties:
Name Type Description
smoothed boolean

Set to true to smooth the texture of this Image, or false to disable smoothing (great for pixel art)
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<readonly> type

Properties:
Name Type Description
type number

The const type of this object.
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world

Properties:
Name Type Description
world Phaser.Point

The world coordinates of this Image. This differs from the x/y coordinates which are relative to the Images container.
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z

Properties:
Name Type Description
z number

The z-depth value of this object within its Group (remember the World is a Group as well). No two objects in a Group can have the same z value.
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Methods

bringToTop() → {Phaser.Image}

Brings the Image to the top of the display list it is a child of. Images that are members of a Phaser.Group are only bought to the top of that Group, not the entire display list.

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Returns:

This instance.

Type
Phaser.Image

crop(rect)

Crop allows you to crop the texture used to display this Image. Cropping takes place from the top-left of the Image and can be modified in real-time by providing an updated rectangle object.

Parameters:
Name Type Description
rect Phaser.Rectangle

The Rectangle to crop the Image to. Pass null or no parameters to clear a previously set crop rectangle.
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destroy(destroyChildren)

Destroys the Image. This removes it from its parent group, destroys the input, event and animation handlers if present and nulls its reference to game, freeing it up for garbage collection.

Parameters:
Name Type Argument Default Description
destroyChildren boolean <optional>
 true

Should every child of this object have its destroy method called?
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kill() → {Phaser.Image}

Kills a Image. A killed Image has its alive, exists and visible properties all set to false. It will dispatch the onKilled event, you can listen to Image.events.onKilled for the signal. Note that killing a Image is a way for you to quickly recycle it in a Image pool, it doesn't free it up from memory. If you don't need this Image any more you should call Image.destroy instead.

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Returns:

This instance.

Type
Phaser.Image

loadTexture(key, frame)

Changes the Texture the Image is using entirely. The old texture is removed and the new one is referenced or fetched from the Cache. This causes a WebGL texture update, so use sparingly or in low-intensity portions of your game.

Parameters:
Name Type Description
key string | Phaser.RenderTexture | Phaser.BitmapData | PIXI.Texture

This is the image or texture used by the Image during rendering. It can be a string which is a reference to the Cache entry, or an instance of a RenderTexture, BitmapData or PIXI.Texture.
frame string | number

If this Image is using part of a sprite sheet or texture atlas you can specify the exact frame to use by giving a string or numeric index.
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postUpdate()

Internal function called by the World postUpdate cycle.

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preUpdate()

Automatically called by World.preUpdate.

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reset(x, y) → {Phaser.Image}

Resets the Image. This places the Image at the given x/y world coordinates and then sets alive, exists, visible and renderable all to true.

Parameters:
Name Type Description
x number

The x coordinate (in world space) to position the Image at.
y number

The y coordinate (in world space) to position the Image at.
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Returns:

This instance.

Type
Phaser.Image

revive() → {Phaser.Image}

Brings a 'dead' Image back to life, optionally giving it the health value specified. A resurrected Image has its alive, exists and visible properties all set to true. It will dispatch the onRevived event, you can listen to Image.events.onRevived for the signal.

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Returns:

This instance.

Type
Phaser.Image

update()

Override and use this function in your own custom objects to handle any update requirements you may have.

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Phaser Copyright © 2012-2014 Photon Storm Ltd.
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