[Request] IPO callback, animation done trigger

Hi, it would be nice to have notification from sio2IpoCurveRender() to either change the state of the IPO curve (NON_CYCLICAL_DONE?) or provide a callback when a rendering stream is completed.

This would help with an in-game "flyby" of a scene done at the beginning of gameplay, ie., a one-time event.

I'll submit code if I make any changes to the engine, but I might just handle this with an NSTimer.

--yarri

Simply monitor the state of the curve and set it to constant. When the renderer reach the end of the control points the state will be set to SIO2_IPO_STOP.