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IScene

Abstract scene interface for scene lifecycle.

PixelTypePixel type for rendering (e.g., Pixel4, uint8_t) Both enjin1 and enjin2 can implement this interface for compile-time polymorphism. Provides standard scene lifecycle methods (onCreate, onUpdate, onRender, etc.).

Namespace: enjin2

Header: include/enjin2/abstract/iscene.hpp

Public Methods​

virtual ~IScene()=default​

Virtual destructor for proper cleanup through base pointer.

void onCreate()=0​

Called when scene is created.

Called once when the scene is first created. Override to set up initial objects and state.

void onActivate()=0​

Called when scene becomes active.

Called when the scene becomes the active scene. Use this to resume animations, start background processes, etc.

void onDeactivate()=0​

Called when scene becomes inactive.

Called when the scene is no longer active. Use this to pause animations, stop background processes, etc.

void onDestroy()=0​

Called when scene is destroyed.

Use this to clean up scene-specific resources.

void onUpdate(uint16_t deltaTime)=0​

Called every frame during update.

deltaTimeTime since last frame in milliseconds Use this for scene-specific update logic that should happen before object updates.

void onRender(ICanvas< PixelType > &canvas)=0​

Called during rendering.

canvasTarget canvas for rendering Use this for scene-specific rendering like backgrounds or UI overlays.

uint32_t getId() const =0 const​

Get scene ID.

Scene identifier

bool isActive() const =0 const​

Check if scene is active.

True if scene is active

bool isInitialized() const =0 const​

Check if scene is initialized.

True if scene is initialized