Function waitFor

packages/core/src/flow/scheduling.ts:21–39

(
  seconds = 0,
  after?: ThreadGenerator,
)

 * @param after - An optional task to be run after the function completes.
 */
export function* waitFor(
  seconds = 0,
  after?: ThreadGenerator,
): ThreadGenerator {
  const thread = useThread();
  const step = usePlayback().framesToSeconds(1);

  const targetTime = thread.time() + seconds;
  // subtracting the step is not necessary, but it keeps the thread time ahead
  // of the project time.
  while (targetTime - step > thread.fixed) {
    yield;
  }
  thread.time(targetTime);

  if (after) {
    yield* after;
  }
}