/// <summary>
/// Changes the position of a Chapter by the ChapterPositionShiftValue
/// </summary>
/// <param name="index">Index of the Chapter to shift</param>
/// <param name="shiftType">Whether to shift the position backwards or forwards</param>
/// <param name="modifier"></param>
public void ChangeChapterPosition(int index, ShiftChapterPositionType shiftType, double modifier)
{
if (index < 0 || index > Track.ChapterList.Count - 1)
{
return;
}
Chapter chapterToChange = Track.ChapterList[index];
int shiftAmount = 0;
switch (shiftType)
{
case ShiftChapterPositionType.Forwards:
shiftAmount = Convert.ToInt32(Settings.Default.ChapterPositionShiftValue.TotalMilliseconds * modifier);
break;
case ShiftChapterPositionType.Backwards:
shiftAmount =
-Convert.ToInt32(Settings.Default.ChapterPositionShiftValue.TotalMilliseconds * modifier);
break;
default:
throw new ArgumentOutOfRangeException(nameof(shiftType), shiftType, null);
}
Track.ChapterList.ChangeChapter(chapterToChange, chapterToChange.Position + shiftAmount);
_api.Player_SetPosition(chapterToChange.Position);
}