Nanook.TheGhost.ProjectSong.calculateMarkers C# (CSharp) Method

        private void calculateMarkers(int[] frets, QbItemArray arr, QbFile text)
        {
            int minNote = this.Notes.MinNoteOffsetSynced + _startPaddingMs + _fretPadding;
            int maxNote = this.Notes.MaxNoteOffsetSynced + _startPaddingMs + _fretPadding;

            int pos = minNote;

            int sectionSecs = 20000;
            int sections = (maxNote - minNote) / sectionSecs; //every x seconds

            for (int c = text.Items.Count - 1; c > 0; c--)
                text.RemoveItem(text.Items[c]);

            QbItemStructArray sa = new QbItemStructArray(arr.Root);
            sa.Create(QbItemType.ArrayStruct);

            arr.Items.Clear();
            arr.AddItem(sa);

            QbItemStruct s;
            QbItemInteger i;
            QbItemQbKey q;
            string sectionTitle;
            QbKey qbKey;
            QbItemString txt;

            for (int c = 0; c < sections; c++)
            {
                if (pos + 3000 > this.Length)
                    break; //don't create a section less than 3 seconds long

                sectionTitle = string.Format("Section {0}", (c + 1).ToString());
                qbKey = QbKey.Create(string.Format("{0}_markers_text_{1}", this.SongQb.Id, QbKey.Create(sectionTitle).Crc.ToString("x").ToLower()));

                txt = new QbItemString(text);
                txt.Create(QbItemType.SectionString);
                txt.ItemQbKey = qbKey;
                txt.Strings = new string[] { sectionTitle };
                text.AddItem(txt);

                s = new QbItemStruct(arr.Root);
                s.Create(QbItemType.StructHeader);
                sa.AddItem(s);

                i = new QbItemInteger(arr.Root);
                i.Create(QbItemType.StructItemInteger);
                i.ItemQbKey = QbKey.Create("time");
                i.Values = new uint[] { findNearestFret((uint)pos, frets) };
                s.AddItem(i);

                pos += sectionSecs;

                q = new QbItemQbKey(arr.Root);
                q.Create(QbItemType.StructItemQbKeyString);
                q.ItemQbKey = QbKey.Create("marker");
                q.Values = new QbKey[] { qbKey };
                s.AddItem(q);
            }

            text.AlignPointers();
            arr.Root.AlignPointers();
        }