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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(): Sceneunknownnull

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​

public rendercontext: CanvasRenderingContext2D: Promisevoid

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.