/// <summary>
/// 每秒计算下载速度，每帧更新进度条
/// </summary>
void OnUpdateProgress()
{
long downloadFinish = (long)(downloadTemp + downloadNow);
totalProgress = KTool.GetPercent(downloadFinish, downloadTotalSize) - zipPercent;
totalProgress = Mathf.Max(totalProgress, 0.0f);
if (Time.time > last_time)
{
last_time = Time.time + 1.0f;
time_per = 0;
// 下载速度 = 前1秒下载量 / 1s ,总下载=下载中 + 已下载
speed = downloadFinish - downloadLastSecond;
speed = (long)Mathf.Max(speed, 0);
remainTime = KTool.GetPercent(downloadTotalSize - downloadFinish, speed);
downloadLastSecond = downloadFinish;
lastTotalProgress = totalProgress;
}
var panel = UIModule.Instance.GetExistUI <LoadingPanel>();
if (panel != null)
{
string strSize = $"{KTool.FormatFileSize(downloadFinish)}/{KTool.FormatFileSize(downloadTotalSize)}";
string strSpeed = (speed / 1024f).ToString("0.##");
time_per += Time.deltaTime;
var progress = Mathf.Lerp(lastTotalProgress, totalProgress, time_per);
panel.SetProgress(I18N.Get("download_speed", strSize, strSpeed, KTool.HumanizeTimeString((int)remainTime)), progress);
}
}