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Scene

interface SceneT = unknown 

The main interface for scenes.

Any class implementing this interface should have a constructor matching SceneConstructor.

Type Parameters

  • T = unknown

    The type of the configuration object.

Implemented by

  • GeneratorScene

Properties

creationStack

creationStack?: string

logger

readonly logger: Logger

meta

readonly meta: ObjectMetaField

name

readonly name: string

Name of the scene.

Will be passed as the second argument to the constructor.


playback

readonly playback: PlaybackStatus

Reference to the project.


previousOnTop

previousOnTop: SignalValueboolean

Should this scene be rendered below the previous scene during a transition?


random

readonly random: Random

shaders

readonly shaders: Shaders
Experimental
This is an experimental feature. The behavior and API may change drastically between minor releases.

slides

readonly slides: Slides

sounds

readonly sounds: Sounds

timeEvents

readonly timeEvents: TimeEvents

variables

readonly variables: Variables

Accessors

experimentalFeatures

public get experimentalFeatures(): boolean

Whether experimental features are enabled.


firstFrame

public get firstFrame(): number

The frame at which this scene starts.


lastFrame

public get lastFrame(): number

The frame at which this scene ends.


lifecycleEvents

public get lifecycleEvents(): LifecycleEvents

The scenes.LifecycleEvents of this scene.


LifecycleEvents

public get LifecycleEvents(): LifecycleEvents

The scenes.LifecycleEvents of this scene.

Deprecated

Use lifecycleEvents instead.


previous

public get previous(): nullSceneunknown

The scene directly before this scene, or null if omitted for performance.


transitionDuration

public get transitionDuration(): number

Scene transition duration in frames.

Methods

canTransitionOut

public canTransitionOut(): boolean

Is this scene in the SceneState.CanTransitionOut state?


enterAfterTransitionIn

public enterAfterTransitionIn(): void

Enter the SceneState.AfterTransitionIn state.


enterCanTransitionOut

public enterCanTransitionOut(): void

Enter the SceneState.CanTransitionOut state.


enterInitial

public enterInitial(): void

Enter the SceneState.Initial state.


getRealSize

public getRealSize(): Vector2

Get the real size of this scene.

Returns the size of the scene multiplied by the resolution scale. This is the actual size of the canvas onto which the scene is rendered.


getSize

public getSize(): Vector2

Get the size of this scene.

Usually returns this.project.getSize().


isAfterTransitionIn

public isAfterTransitionIn(): boolean

Is this scene in the SceneState.AfterTransitionIn state?


isCached

public isCached(): boolean

Is this scene cached?

Used only by GeneratorScene. Seeking through a project that contains at least one uncached scene will log a warning to the console.

Should always return true.


isFinished

public isFinished(): boolean

Is this scene in the SceneState.Finished state?


next

public next(): Promisevoid

Progress this scene one frame forward.


recalculate

public recalculatesetFrame: frame: number => void: Promisevoid

Recalculate the scene.

The task of this method is to calculate new timings stored in the cache. When this method is invoked, this.project.frame is set to the frame at which this scene should start (firstFrame).

At the end of execution, this method should set this.project.frame to the frame at which this scene ends (lastFrame).

Should trigger onRecalculated.

Parameters


reload

public reloaddescription?: SceneDescriptionReloadT: void

Reload the scene.

This method is called whenever something related to this scene has changed: time events, source code, metadata, etc.

Should trigger onReloaded.

Parameters

  • description?: SceneDescriptionReloadT

    If present, an updated version of the description.


render

Render the scene onto a canvas.

Parameters


reset

public resetprevious?: Sceneunknown: Promisevoid

Reset this scene to its initial state.

Parameters

  • previous?: Sceneunknown

    If present, the previous scene.

Events

onCacheChanged

public get onCacheChanged(): SubscribableValueEventCachedSceneData

Triggered when the cached data changes.


onRecalculated

public get onRecalculated(): SubscribableEventvoid

Triggered after scene is recalculated.


onReloaded

public get onReloaded(): SubscribableEventvoid

Triggered when the scene is reloaded.


onRenderLifecycle

public get onRenderLifecycle(): SubscribableEventSceneRenderEventCanvasRenderingContext2D

Triggered at various stages of the render lifecycle with an event title and a Context2D.


onReset

public get onReset(): SubscribableEventvoid

Triggered when the scene is reset.