Class: SliderSystem

Drives SliderComponent. PreRender, before TransformSystem, so the handle lands this frame.

Every frame (edit mode too): value is clamped (and rounded for wholeNumbers), the handle child is moved to it along the track and the fill child shows the track up to it. While the game runs: a press on the track jumps there and the drag follows, through the global pointer stream (so it keeps going off the slider); SliderChanged fires on every change.

Press positions come from IInput, not the entity event, so the jump and the drag share one coordinate space. Pixi's handler and IInput's listener see the same DOM pointerdown in either order, so whichever runs second starts the drag.

Extends

• BoundComponentSystem<SliderComponent, BoundSlider>

Constructors

Constructor

new SliderSystem(): SliderSystem;

Returns

SliderSystem

Inherited from

BoundComponentSystem<SliderComponent, BoundSlider>.constructor

Properties

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

Methods

GetName()

GetName(): string;

Returns

string

Overrides

BoundComponentSystem.GetName

---

GetOrder()

GetOrder(): SystemOrder;

Returns

SystemOrder

---

GetPhase()

GetPhase(): SystemPhase;

Returns

SystemPhase

Overrides

BoundComponentSystem.GetPhase

---

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

Overrides

BoundComponentSystem.OnStart

---

OnStop()

OnStop(scene): void;

Parameters

Parameter	Type
scene	Scene

Returns

void

Overrides

BoundComponentSystem.OnStop

---

OnUpdate()

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

Parameters

Parameter	Type
_scene	Scene
_dt	number

Returns

void | Promise<void>

Inherited from

BoundComponentSystem.OnUpdate