public static double getTPS(int ticks)
  {
    if (TickCount < ticks) {
      return 20.0D;
    }
    int target = (TickCount - 1 - ticks) % Ticks.length;
    long elapsed = System.currentTimeMillis() - Ticks[target];

    return ticks / (elapsed / 1000.0D);
  }