Class EventBus

Global event bus for decoupled communication between game systems. Scenes, entities, and managers can emit/listen without direct references.

Common events:

'player:death', 'player:respawn'
'score:changed', 'level:complete'
'enemy:killed', 'item:collected'
'ui:pause', 'ui:resume'

Index

Constructors

Methods

clear emit hasListeners listenerCount off on once removeAll removeAllByOwner

Constructors

constructor

new EventBus(): EventBus
Returns EventBus

Methods

clear

clear(): void
Remove all listeners for all events

Returns void
- Defined in packages/clik-engine/src/utils/EventBus.ts:99

emit

emit(event: string, ...args: unknown[]): this
Emit an event to all listeners
Parameters
- event: string
- ...args: unknown[]
Returns this
- Defined in packages/clik-engine/src/utils/EventBus.ts:53

hasListeners

hasListeners(event: string): boolean
Check if an event has listeners
Parameters
- event: string
Returns boolean
- Defined in packages/clik-engine/src/utils/EventBus.ts:105

listenerCount

listenerCount(event: string): number
Get count of listeners for an event
Parameters
- event: string
Returns number
- Defined in packages/clik-engine/src/utils/EventBus.ts:111

off

off(event: string, callback: EventCallback): this
Remove a listener
Parameters
- event: string
- callback: EventCallback
Returns this
- Defined in packages/clik-engine/src/utils/EventBus.ts:43

on

on(event: string, callback: EventCallback, owner?: object): this
Listen for an event. Pass owner to enable bulk cleanup via removeAllByOwner().
Parameters
- event: string
- callback: EventCallback
- Optionalowner: object
Returns this
- Defined in packages/clik-engine/src/utils/EventBus.ts:25

once

once(event: string, callback: EventCallback, owner?: object): this
Listen for an event once
Parameters
- event: string
- callback: EventCallback
- Optionalowner: object
Returns this
- Defined in packages/clik-engine/src/utils/EventBus.ts:34

removeAll

removeAll(event: string): this
Remove all listeners for an event
Parameters
- event: string
Returns this
- Defined in packages/clik-engine/src/utils/EventBus.ts:71

removeAllByOwner

removeAllByOwner(owner: object): this
Remove all listeners registered with the given owner (e.g., a scene instance)
Parameters
- owner: object
Returns this
- Defined in packages/clik-engine/src/utils/EventBus.ts:78