Trigger an event directly with the event name and necessary arguments.
event type
Arguments when the event triggered
Checks whether there is correspond event listener registered on the given event
Event type
Callback function when event triggered
Callback callee
Removes the listeners previously registered with the same type, callback, target and or useCapture, if only type is passed as parameter, all listeners registered with that type will be removed.
A string representing the event type being removed.
The callback to remove.
The target (this object) to invoke the callback, if it's not given, only callback without target will be removed
Register an callback of a specific event type on the EventTarget.
This type of event should be triggered via emit.
A string representing the event type to listen for.
The callback that will be invoked when the event is dispatched. The callback is ignored if it is a duplicate (the callbacks are unique).
The target (this object) to invoke the callback, can be null
Register an callback of a specific event type on the EventTarget, the callback will remove itself after the first time it is triggered.
A string representing the event type to listen for.
The callback that will be invoked when the event is dispatched. The callback is ignored if it is a duplicate (the callbacks are unique).
The target (this object) to invoke the callback, can be null
Removes all callbacks registered in a certain event type or all callbacks registered with a certain target
The event type or target with which the listeners will be removed
Removes all callbacks previously registered with the same target (passed as parameter). This is not for removing all listeners in the current event target, and this is not for removing all listeners the target parameter have registered. It's only for removing all listeners (callback and target couple) registered on the current event target by the target parameter.
Generated using TypeDoc
!#en EventTarget is an object to which an event is dispatched when something has occurred. Entity are the most common event targets, but other objects can be event targets too.
Event targets are an important part of the Fireball event model. The event target serves as the focal point for how events flow through the scene graph. When an event such as a mouse click or a keypress occurs, Fireball dispatches an event object into the event flow from the root of the hierarchy. The event object then makes its way through the scene graph until it reaches the event target, at which point it begins its return trip through the scene graph. This round-trip journey to the event target is conceptually divided into three phases: