Phaser API Documentation

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Phaser . Cameras . Scene2D . Effects . Flash

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Phaser . Cameras . Scene2D . Effects . Flash

A Camera Flash effect.

This effect will flash the camera viewport to the given color, over the duration specified.

Only the camera viewport is flashed. None of the objects it is displaying are impacted, i.e. their colors do not change.

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 Flash(camera)

Parameters:

name type description
camera Phaser.Cameras.Scene2D.Camera

The camera this effect is acting upon.

Since: 3.5.0

Members

<private> _elapsed: number
Focus
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Description:

Effect elapsed timer.

Type:
number
Since: 3.5.0
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<private, nullable> _onUpdate: Phaser.Types.Cameras.Scene2D.CameraFlashCallback
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Description:

This callback is invoked every frame for the duration of the effect.

Type:
Default: null
Since: 3.5.0
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<private> _onUpdateScope: any
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Description:

On Complete callback scope.

Type:
any
Since: 3.5.0
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<private> alpha: number
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Description:

The value of the alpha channel used during the flash effect. A value between 0 and 1.

Type:
number
Since: 3.5.0
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<private> blue: number
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Description:

The value of the blue color channel the camera will use for the flash effect. A value between 0 and 255.

Type:
number
Since: 3.5.0
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<readonly> camera: Phaser.Cameras.Scene2D.Camera
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Focus

Description:

The Camera this effect belongs to.

Type:
Since: 3.5.0
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<readonly> duration: number
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Description:

The duration of the effect, in milliseconds.

Type:
number
Default: 0
Since: 3.5.0
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<private> green: number
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Description:

The value of the green color channel the camera will use for the flash effect. A value between 0 and 255.

Type:
number
Since: 3.5.0
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<readonly> isRunning: boolean
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Focus

Description:

Is this effect actively running?

Type:
boolean
Default: false
Since: 3.5.0
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progress: number
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Description:

If this effect is running this holds the current percentage of the progress, a value between 0 and 1.

Type:
number
Since: 3.5.0
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<private> red: number
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Description:

The value of the red color channel the camera will use for the flash effect. A value between 0 and 255.

Type:
number
Since: 3.5.0
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Methods

destroy()
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Description:

Destroys this effect, releasing it from the Camera.

Examples:
Since: 3.5.0
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effectComplete()
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Description:

Called internally when the effect completes.

Examples:
Since: 3.5.0
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postRenderCanvas(ctx)
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Description:

Called internally by the Canvas Renderer.

Parameters:

name type description
ctx CanvasRenderingContext2D

The Canvas context to render to.

Returns:
Description:

true if the effect drew to the renderer, otherwise false.

Type:
  • boolean
Examples:
Since: 3.5.0
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postRenderWebGL(pipeline, getTintFunction)
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Description:

Called internally by the WebGL Renderer.

Parameters:

name type description
pipeline Phaser.Renderer.WebGL.Pipelines.MultiPipeline

The WebGL Pipeline to render to. Must provide the drawFillRect method.

getTintFunction function

A function that will return the gl safe tint colors.

Returns:
Description:

true if the effect drew to the renderer, otherwise false.

Type:
  • boolean
Examples:
Since: 3.5.0
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reset()
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Description:

Resets this camera effect. If it was previously running, it stops instantly without calling its onComplete callback or emitting an event.

Examples:
Since: 3.5.0
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start([duration], [red], [green], [blue], [force], [callback], [context])
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Description:

Flashes the Camera to or from the given color over the duration specified.

Parameters:

name type arguments Default description
duration number <optional> 250

The duration of the effect in milliseconds.

red number <optional> 255

The amount to flash the red channel towards. A value between 0 and 255.

green number <optional> 255

The amount to flash the green channel towards. A value between 0 and 255.

blue number <optional> 255

The amount to flash the blue channel towards. A value between 0 and 255.

force boolean <optional> false

Force the effect to start immediately, even if already running.

callback Phaser.Types.Cameras.Scene2D.CameraFlashCallback <optional>

This callback will be invoked every frame for the duration of the effect. It is sent two arguments: A reference to the camera and a progress amount between 0 and 1 indicating how complete the effect is.

context any <optional>

The context in which the callback is invoked. Defaults to the Scene to which the Camera belongs.

Returns:
Description:

The Camera on which the effect was started.

Examples:
Since: 3.5.0
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update(time, delta)
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Description:

The main update loop for this effect. Called automatically by the Camera.

Parameters:

name type description
time number

The current timestamp as generated by the Request Animation Frame or SetTimeout.

delta number

The delta time, in ms, elapsed since the last frame.

Examples:
Since: 3.5.0
Focus
Focus