/// <summary>
/// Do a volume repack of a set + one of items.
/// </summary>
/// <param name="originalItems"></param>
/// <param name="plusOneItem"></param>
/// <returns></returns>
private PackedBoxList DoVolumeRepack(IEnumerable <Item> originalItems, Item plusOneItem)
{
var packer = new Packer();
packer.SetBoxes(this.boxes);
packer.SetItems(originalItems);
if (plusOneItem != null)
{
packer.AddItem(plusOneItem);
}
return(packer.DoVolumePacking());
}