public void ReleaseProgressObject(ProgressObject obj)
        {
            obj.Disable();
            this.activeProgress.Remove(obj);
            this.poolProgress.Enqueue(obj);

            int idx = 0;

            foreach (var progress in activeProgress)
            {
                progress.SetPosition(GetPosition(idx));
                ++idx;
            }
            this.ExpandBgObject(activeProgress.Count);
        }