Zoom
A Camera Zoom effect.
This effect smoothly animates a Camera's zoom level from its current value to a target zoom value over a specified duration. Use it to create cinematic zoom-in or zoom-out transitions, focus the player's attention on a point of interest, or produce dramatic effects such as a slow zoom during a cutscene.
The effect integrates with Phaser's easing system, allowing any of the built-in easing functions (or a custom one) to control the interpolation curve. It is accessed via Camera.zoomTo rather than being instantiated directly.
The effect will dispatch several events on the Camera itself and you can also specify an onUpdate callback, which is invoked each frame for the duration of the effect if required.
Constructor
new Zoom(camera)
Parameters
| name | type | optional | description |
|---|---|---|---|
| camera | Phaser.Cameras.Scene2D.Camera | No | The camera this effect is acting upon. |
Scope: static
Source: src/cameras/2d/effects/Zoom.js#L12
Since: 3.11.0
Public Members
camera
camera: Phaser.Cameras.Scene2D.Camera
Description:
The Camera this effect belongs to.
Source: src/cameras/2d/effects/Zoom.js#L40
Since: 3.11.0
destination
destination: number
Description:
The destination zoom value.
Source: src/cameras/2d/effects/Zoom.js#L81
Since: 3.11.0
duration
duration: number
Description:
The duration of the effect, in milliseconds.
Source: src/cameras/2d/effects/Zoom.js#L61
Since: 3.11.0
ease
ease: function
Description:
The ease function to use during the zoom.
Source: src/cameras/2d/effects/Zoom.js#L90
Since: 3.11.0
isRunning
isRunning: boolean
Description:
Is this effect actively running?
Source: src/cameras/2d/effects/Zoom.js#L50
Since: 3.11.0
progress
progress: number
Description:
If this effect is running this holds the current percentage of the progress, a value between 0 and 1.
Source: src/cameras/2d/effects/Zoom.js#L99
Since: 3.11.0
source
source: number
Description:
The starting zoom value.
Source: src/cameras/2d/effects/Zoom.js#L72
Since: 3.11.0
Public Methods
destroy
<instance> destroy()
Description:
Destroys this effect, releasing it from the Camera.
Source: src/cameras/2d/effects/Zoom.js#L278
Since: 3.11.0
effectComplete
<instance> effectComplete()
Description:
Called internally when the effect completes.
Fires: Phaser.Cameras.Scene2D.Events#event:ZOOM_COMPLETE
Source: src/cameras/2d/effects/Zoom.js#L246
Since: 3.11.0
reset
<instance> reset()
Description:
Resets this camera effect. If it was previously running, it stops instantly without calling its onComplete callback or emitting an event.
Source: src/cameras/2d/effects/Zoom.js#L263
Since: 3.11.0
start
<instance> start(zoom, [duration], [ease], [force], [callback], [context])
Description:
This effect will zoom the Camera to the given scale, over the duration and with the ease specified.
Parameters:
| name | type | optional | default | description |
|---|---|---|---|---|
| zoom | number | No | The target Camera zoom value. | |
| duration | number | Yes | 1000 | The duration of the effect in milliseconds. |
| ease | string | function | Yes | "'Linear'" | The ease to use for the Zoom. Can be any of the Phaser Easing constants or a custom function. |
| force | boolean | Yes | false | Force the zoom effect to start immediately, even if already running. |
| callback | Phaser.Types.Cameras.Scene2D.CameraZoomCallback | Yes | This callback will be invoked every frame for the duration of the effect. It is sent three arguments: A reference to the camera, a progress amount between 0 and 1 indicating how complete the effect is, and the current camera zoom value. | |
| context | any | Yes | The context in which the callback is invoked. Defaults to the Scene to which the Camera belongs. |
Returns: Phaser.Cameras.Scene2D.Camera - The Camera on which the effect was started.
Fires: Phaser.Cameras.Scene2D.Events#event:ZOOM_START, Phaser.Cameras.Scene2D.Events#event:ZOOM_COMPLETE
Source: src/cameras/2d/effects/Zoom.js#L140
Since: 3.11.0
update
<instance> update(time, delta)
Description:
The main update loop for this effect. Called automatically by the Camera.
Parameters:
| name | type | optional | description |
|---|---|---|---|
| time | number | No | The current timestamp as generated by the Request Animation Frame or SetTimeout. |
| delta | number | No | The delta time, in ms, elapsed since the last frame. |
Source: src/cameras/2d/effects/Zoom.js#L204
Since: 3.11.0