Class: UITransitionSystem

Drives UITransitionComponent. PreRender, after layout / scrolling and before TransformSystem: advances each transition (frame time, scaled by the game's time scale, held while paused), then writes the pose — position / scale / rotation offsets and an opacity factor — into Transform and UIOpacity. UITransitionRestoreSystem puts the original values back once the transform and opacity steps have used them, so the effect never lands in saved data and layout sees the entity's own values next frame.

Only while the game runs (or for an editor preview). When the game starts, each transition applies its onStart; one spawned during the run applies it when bound.

Extends

• BoundComponentSystem<UITransitionComponent, BoundTransition>

Constructors

Constructor

new UITransitionSystem(): UITransitionSystem;

Returns

UITransitionSystem

Inherited from

BoundComponentSystem<UITransitionComponent, BoundTransition>.constructor

Properties

Property	Modifier	Type	Default value	Inherited from
enabled	public	boolean	true	BoundComponentSystem.enabled
parallel	public	boolean	false	BoundComponentSystem.parallel

Methods

Entries()

Entries(): IterableIterator<BoundTransition>;

The restore half reads the entries.

Returns

IterableIterator<BoundTransition>

---

GetName()

GetName(): string;

Returns

string

Overrides

BoundComponentSystem.GetName

---

GetOrder()

GetOrder(): SystemOrder;

Returns

SystemOrder

---

GetPhase()

GetPhase(): SystemPhase;

Returns

SystemPhase

Overrides

BoundComponentSystem.GetPhase

---

GetWrites()

GetWrites(): readonly string[];

Returns

readonly string[]

---

OnClose()

OnClose(): void;

Returns

void

Inherited from

BoundComponentSystem.OnClose

---

OnInit()

OnInit(engine): void;

Parameters

Parameter	Type
engine	IEngine

Returns

void

Inherited from

BoundComponentSystem.OnInit

---

OnRender()

OnRender(scene, _renderer): void;

Parameters

Parameter	Type
scene	Scene
_renderer	IRenderer

Returns

void

Overrides

BoundComponentSystem.OnRender

---

OnRendererChanged()

OnRendererChanged(_renderer): void;

Parameters

Parameter	Type
_renderer	IRenderer

Returns

void

Inherited from

BoundComponentSystem.OnRendererChanged

---

OnStart()

OnStart(scene, _renderer): void;

Parameters

Parameter	Type
scene	Scene
_renderer	IRenderer

Returns

void

Inherited from

BoundComponentSystem.OnStart

---

OnStop()

OnStop(_scene): void;

Parameters

Parameter	Type
_scene	Scene

Returns

void

Inherited from

BoundComponentSystem.OnStop

---

OnUpdate()

OnUpdate(_scene, _dt): void | Promise<void>;

Parameters

Parameter	Type
_scene	Scene
_dt	number

Returns

void | Promise<void>

Inherited from

BoundComponentSystem.OnUpdate