Function timerStep

frontend/src/ts/test/test-timer.ts:277–326

(now: number, catchingUp: boolean)

}

function timerStep(now: number, catchingUp: boolean): void {
  if (timerDebug) console.time("timer step -----------------------------");

  Time.increment();

  if (catchingUp) {
    // cheap per-tick side effects — must run for every missed tick during catch-up
    // so warnings/layout switches still fire on the correct seconds
    if (Config.playTimeWarning !== "off") playTimeWarning();
    layoutfluid();
    checkIfTimeIsUp();
  } else {
    //calc — only the final, real-time tick pays for these
    const eventLog = buildEventLog();

    const chars = getChars(eventLog, true);

    const currentTestDurationMs = getLiveCachedTestDurationMs(now);
    const acc = getLiveCachedAccuracy();
    const wpmAndRaw = {
      wpm: Math.round(
        calculateWpm(chars.correctWord, currentTestDurationMs / 1000),
      ),
      raw: Math.round(
        calculateWpm(
          chars.allCorrect + chars.extra + chars.incorrect,
          currentTestDurationMs / 1000,
        ),
      ),
    };

    //ui updates
    requestDebouncedAnimationFrame("test-timer.timerStep", () => {
      premid();
      monkey(wpmAndRaw);
    });

    // already using raf
    TimerProgress.update();
    LiveSpeed.update(wpmAndRaw.wpm, wpmAndRaw.raw);

    //logic
    if (Config.playTimeWarning !== "off") playTimeWarning();
    layoutfluid();
    const failed = checkIfFailed(wpmAndRaw, acc);
    if (!failed) checkIfTimeIsUp();
  }

  if (timerDebug) console.timeEnd("timer step -----------------------------");
}

function checkIfTimerIsSlow(drift: number): void {
  if (!slowTimerFailEnabled) return;