private void Instance_AddComic(Comic comic)
{
if (this.Contains(comic))
{
throw new ArgumentException("comic already exists in this collection");
}
int index;
if (this.sortSelector == ComicSortSelector.Random)
{
index = General.Randomizer.Next(this.Count + 1);
}
else
{
index = this.sortedComics.BinarySearch(comic, ComicComparers.Make(this.sortSelector));
if (index <= 0)
{
index = ~index;
}
}
this.sortedComics.Insert(index, comic);
this.comicAccessor[comic.UniqueIdentifier] = comic;
}
/// <summary>
/// Behavior is undefined if <c>comic</c> is not part of this view.
/// </summary>
public int?IndexOf(Comic comic)
{
if (this.sortSelector is ComicSortSelector.Random)
{
foreach (var(existingComic, index) in this.sortedComics.Select((comic, index) => (comic, index)))
{
if (existingComic.UniqueIdentifier == comic.UniqueIdentifier)
{
return(index);
}
}
return(null);
}
else
{
// Note: BinarySearch returns >= 0 if found, <0 if not found
var index = this.sortedComics.BinarySearch(comic, ComicComparers.Make(this.sortSelector));
if (index >= 0)
{
return(index);
}
else
{
return(null);
}
}
}
private static void SortComics(List <Comic> comics, ComicSortSelector sortSelector)
{
if (sortSelector == ComicSortSelector.Random)
{
General.Shuffle(comics);
}
else
{
comics.Sort(ComicComparers.Make(sortSelector));
}
}
protected override void RemoveComic(Comic comic)
{
if (this.sortSelector == ComicSortSelector.Random)
{
if (!this.sortedComics.Remove(comic))
{
throw new ArgumentException("comic doesn't exist in this collection");
}
}
else
{
var index = this.sortedComics.BinarySearch(comic, ComicComparers.Make(this.sortSelector));
if (index < 0)
{
throw new ArgumentException("comic doesn't exist in this collection");
}
this.sortedComics.RemoveAt(index);
}
_ = this.comicAccessor.Remove(comic.UniqueIdentifier);
}
