event_queue :: EventInfo :: completion
Usually between 0.0 and 1. It might be > 1.0 if the event has expired during the last time lapse.
	# Ratio of completion
	#
	# Usually between 0.0 and 1.
	# It might be > 1.0 if the event has expired during the last time lapse.
	var completion = 0.0
					lib/event_queue/event_queue.nit:288,2--292,21