Tweening

[davesmith00000]

Original comment below.

---

A fuller animation framework... something like:

Node
    .Animate
    .start(Node.moveTo(0, 0))
    .end(Node.moveTo(1,1))
    .withEasing(Ease.In)
    .for(Seconds(1))
    .emitEvent(Events.Moved)
    .andThen()
    .start(Node.withAlpha(1))
    .end(Node.withAlpha(0))
    .for(Seconds(2))
    .emitEvent(Events.Finished)

Tweening classes. Signals (Pure, Reader, State) in disguise that handle all the hard stuff of telling a thing when to be where, when to start moving, and when to stop.