Unity elegantly abuses these to provide a coroutine support. Basically you can “schedule” an enumerator to be run on the game loop. Engine iterates one by one o

Unity elegantly abuses these to provide a coroutine support. Basically you can “schedule” an enumerator to be run on the game loop. Engine iterates one by one on the iterator each frame. Can use for animations, delays etc. It looked weird first time but makes sense.