onEvent()

ecs.defineState(name).onEvent(event, nextState, args)

Description

Trigger a transition to the next state when an event is received.

Property	Type	Description
event	string	the event to listen for
nextState	string or State	the next state to transition to. You can pass another state returned by `defineState` or just the state name
args	EventObject	optional arguments for the event

Property	Type	Description
target (optional)	eid	the entity you want this trigger to change state for
beforeTransition (optional)	(event) => boolean	a function that run before the transition, if the result is truthy then the transition will terminate and the state will not change