public static IObservable <VerocityInfo> Verocity(this IInputObservable io)
{
return(io.OnBegin.SelectMany(e =>
Observable.Merge(Observable.Return(e), io.Any().TakeUntil(io.OnEnd.DelayFrame(1)))
.TimeInterval()
.Buffer(2, 1))
.Where(ts => ts.Count > 1)
.Select(ts => VerocityInfo.Create(ts[0], ts[1])));
}
public static IObservable <IList <VerocityInfo> > TakeLastVerocities(this IInputObservable io, int count)
{
return(io.TakeLastTimeIntervalBuffer(count).Select(timeEvents =>
{
var verocities = new List <VerocityInfo>();
var prev = timeEvents.First();
for (int i = 1; i < timeEvents.Count; i++)
{
var t = timeEvents[i];
verocities.Add(VerocityInfo.Create(prev, t));
prev = t;
}
return verocities;
}));
}