timing on a sequence of actions

[fivel_lab]

Well, I'm not quite sure. That's sort of what I was asking in my original question. I was hoping to do the latter of your suggestions. The update function I wrote in the OP is called every frame. What I can't figure out is whether the sequence of actions strung together in the update function are executed individually (at a rate of 1/frame or some such) or whether the entire sequence is combined so that the end point of the sequence is achieved before the next frame. Thanks!!