00fde3eeb3
rather than codes to indicate different types of events. Also modified name of sprite observer callback as spriteChanged() implies that the sprite actually changed which it may not have, whereas handleEvent() doesn't imply anything other than the sprite observer is being asked to deal with a sprite event. git-svn-id: svn+ssh://src.earth.threerings.net/narya/trunk@338 542714f4-19e9-0310-aa3c-eee0fc999fb1