Function actAt

e2e/viewer/src/SessionPlayer.tsx:112–118

(time: number)

  const ready = castDuration !== null && videoDuration !== null && Number.isFinite(duration);

  const actAt = (time: number): number => {
    for (let i = acts.length - 1; i >= 0; i -= 1) {
      const act = acts[i];
      if (act && time >= act.from - 0.001) return i;
    }
    return 0;
  };
  const activeAct = acts[actAt(t)];
  const activeWindow = activeAct?.window ?? "terminal";