LightSource

Defined in: lighting/src/LightSource.ts:34

A radial light centred on its entity’s Transform.worldPosition.

The radius and levelAt() contribution use world pixels. Transform scale does not resize the light; set radius when the gameplay radius changes.

Extends

Component

Constructors

Constructor

new LightSource(options): LightSource

Defined in: lighting/src/LightSource.ts:43

Parameters

options

LightSourceOptions

Returns

LightSource

Overrides

Component.constructor

Properties

entity

entity: Entity

Defined in: core/dist/index.d.ts:2593

Back-reference to the owning entity. Set by the engine when the component is added to an entity. Do not set manually.

Inherited from

Component.entity

restorePriority

static restorePriority: number = 10

Defined in: lighting/src/LightSource.ts:35

Snapshot restore order. On load, an entity’s components are re-added in ascending priority, so a component whose onAdd() reads a sibling can rely on lower-priority siblings being present and initialized. Undeclared = 100. Engine components reserve 0-99; game and addon components declare a value only when a sibling onAdd() dependency requires it. Equal priorities restore in save-time add order. Subclasses inherit their base class’s priority unless they declare their own.

Overrides

Component.restorePriority

Accessors

color

Get Signature

get color(): number

Defined in: lighting/src/LightSource.ts:83

RGB tint used by renderers that support coloured light.

Returns

number

Set Signature

set color(value): void

Defined in: lighting/src/LightSource.ts:87

Parameters

value

number

Returns

void

context

Get Signature

get context(): EngineContext

Defined in: core/dist/index.d.ts:2627

Access the EngineContext from the entity’s scene. Throws if the entity is not in a scene.

Returns

EngineContext

Inherited from

Component.context

effectiveEnabled

Get Signature

get effectiveEnabled(): boolean

Defined in: core/dist/index.d.ts:2616

Whether the component is actually running: enabled, on an active entity, and past onAdd. This is the state onEnable and onDisable track — read it when a method has to behave one way live and another way dormant.

Returns

boolean

Inherited from

Component.effectiveEnabled

enabled

Get Signature

get enabled(): boolean

Defined in: core/dist/index.d.ts:2608

Whether this component runs. Disabled components are skipped by ComponentUpdateSystem.

Writing this fires onEnable / onDisable when the effective state changes — enabled && entity.isActive. A component disabled here stays disabled through a setActive(false) / setActive(true) cycle on its entity.

Returns

boolean

Set Signature

set enabled(value): void

Defined in: core/dist/index.d.ts:2609

Parameters

value

boolean

Returns

void

Inherited from

LightOccluder.enabled

intensity

Get Signature

get intensity(): number

Defined in: lighting/src/LightSource.ts:72

Peak contribution at the light’s centre, from 0 to 1.

Returns

number

Set Signature

set intensity(value): void

Defined in: lighting/src/LightSource.ts:76

Parameters

value

number

Returns

void

position

Get Signature

get position(): Vec2

Defined in: lighting/src/LightSource.ts:56

Current world-space centre.

Returns

Vec2

radius

Get Signature

get radius(): number

Defined in: lighting/src/LightSource.ts:61

Radius in world pixels.

Returns

number

Set Signature

set radius(value): void

Defined in: lighting/src/LightSource.ts:65

Parameters

value

number

Returns

void

scene

Get Signature

get scene(): Scene

Defined in: core/dist/index.d.ts:2622

Access the entity’s scene. Throws if the entity is not in a scene. Prefer this over threading through this.entity.scene in component code.

Returns

Scene

Inherited from

Component.scene

Methods

_applyEnabled()

_applyEnabled(effective): void

Defined in: core/dist/index.d.ts:2681

Internal

Force an effective-enabled transition, firing the hook on a flip. Used by Entity for teardown, where enabled and the entity’s activeness both still read true.

Parameters

effective

boolean

Returns

void

Inherited from

Component._applyEnabled

_refreshEnabled()

_refreshEnabled(): void

Defined in: core/dist/index.d.ts:2674

Internal

Recompute effective enabled-ness from enabled and the entity’s activeness, firing the hook on a flip.

Returns

void

Inherited from

Component._refreshEnabled

_runCleanups()

_runCleanups(): void

Defined in: core/dist/index.d.ts:2668

Internal

Run and clear all registered cleanups. Called by Entity.remove() and Entity._performDestroy() before onRemove/onDestroy.

Returns

void

Inherited from

Component._runCleanups

addCleanup()

protected addCleanup(fn): void

Defined in: core/dist/index.d.ts:2662

Parameters

fn

() => void

Returns

void

Inherited from

Component.addCleanup

afterRestore()?

optional afterRestore(data, resolve): void

Defined in: core/dist/index.d.ts:2735

Called after onAdd() during save/load restoration. Apply state that depends on onAdd() having run.

Parameters

data

unknown

resolve

SnapshotResolver

Returns

void

Inherited from

Component.afterRestore

fixedUpdate()?

optional fixedUpdate(dt): void

Defined in: core/dist/index.d.ts:2720

Called every fixed timestep by the built-in ComponentUpdateSystem.

Parameters

dt

number

Fixed timestep in seconds, scaled by scene and entity timeScale.

Returns

void

Inherited from

Component.fixedUpdate

listen()

protected listen<T>(entity, token, handler): void

Defined in: core/dist/index.d.ts:2654

Subscribe to events on any entity, auto-unsubscribe on removal.

Type Parameters

T

T

Parameters

entity

Entity

token

EventToken<T>

handler

(data) => void

Returns

void

Inherited from

Component.listen

listenScene()

protected listenScene<T>(token, handler): void

Defined in: core/dist/index.d.ts:2660

Subscribe to scene-level events, auto-unsubscribe on removal. Handlers fire for bubbled entity events (entity = source) and scene.emit events (entity = undefined).

Type Parameters

T

T

Parameters

token

EventToken<T>

handler

(data, entity?) => void

Returns

void

Inherited from

Component.listenScene

onAdd()?

optional onAdd(): void

Defined in: core/dist/index.d.ts:2689

Called when the component is added to an entity. Validate dependencies here — a service, a sibling component, a render layer — and throw when one is missing. The throw is attributed to this component, recorded in Inspector.getErrors().callbackErrors, and rethrown, so it reaches the caller of entity.add() unchanged.

Returns

void

Inherited from

Component.onAdd

onDestroy()

onDestroy(): void

Defined in: lighting/src/LightSource.ts:102

Called when the component is destroyed (entity destroyed or component removed).

Returns

void

Overrides

Component.onDestroy

onDisable()

onDisable(): void

Defined in: lighting/src/LightSource.ts:98

Called when the component stops being effectively enabled — enabled went false, the entity (or an ancestor) was deactivated, or the component is being removed or destroyed. Put live resources to sleep here; the component is reused afterwards, so do not free anything onEnable cannot rebuild.

Returns

void

Overrides

Component.onDisable

onEnable()

onEnable(): void

Defined in: lighting/src/LightSource.ts:93

Called when the component becomes effectively enabled — enabled is true and the entity is active. Fires right after onAdd() for a component added to an active entity, and again on every later flip. Bring live resources back online here (unpause a sound, show a display object, re-enable a physics body). Game-state reset does not belong here: the hook sees whatever state the component held while dormant.

Returns

void

Overrides

Component.onEnable

onRemove()?

optional onRemove(): void

Defined in: core/dist/index.d.ts:2708

Called when the component is removed from an entity.

Returns

void

Inherited from

Component.onRemove

serialize()

serialize(): LightSourceData

Defined in: lighting/src/LightSource.ts:107

Return a JSON-serializable snapshot of this component’s state. Used by the save system.

Returns

LightSourceData

Overrides

Component.serialize

service()

protected service<T>(key): T

Defined in: core/dist/index.d.ts:2644

Lazy proxy-based service resolution. Can be used at field-declaration time:

readonly input = this.service(InputManagerKey);

The actual resolution is deferred until first property access.

Type Parameters

T

T extends object

Parameters

key

ServiceKey<T>

Returns

T

Inherited from

Component.service

sibling()

protected sibling<C>(cls): C

Defined in: core/dist/index.d.ts:2652

Lazy proxy-based sibling component resolution. Can be used at field-declaration time:

readonly anim = this.sibling(AnimatedSpriteComponent);

The actual resolution is deferred until first property access.

Type Parameters

C

C extends Component

Parameters

cls

ComponentClass<C>

Returns

C

Inherited from

Component.sibling

update()?

optional update(dt): void

Defined in: core/dist/index.d.ts:2715

Called every frame by the built-in ComponentUpdateSystem.

Parameters

dt

number

Frame delta in seconds, scaled by scene and entity timeScale.

Returns

void

Inherited from

Component.update

use()

protected use<T>(key): T

Defined in: core/dist/index.d.ts:2635

Resolve a service by key, cached after first lookup. Scene-scoped values (registered via scene._registerScoped) take precedence over engine scope. A key declared with scope: "scene" that falls back to engine scope emits a one-shot dev warning — almost always signals a missed beforeEnter hook.

Type Parameters

T

T

Parameters

key

ServiceKey<T>

Returns

T

Inherited from

Component.use

fromSnapshot()

static fromSnapshot(data): LightSource

Defined in: lighting/src/LightSource.ts:116

Parameters

data

LightSourceData

Returns

LightSource