public PuzzleLibraryEntry Create(Puzzle puzzle, string author)
{
var uid = nextUID++;
Debug.Assert(!ContainsEntryWithUID(uid));
var newEntry = new PuzzleLibraryEntry(uid, puzzle, author);
entries.Add(newEntry);
return(newEntry);
}
public void Add(PuzzleLibraryEntry libraryEntry)
{
if (libraryEntry == null)
{
throw new ArgumentNullException(nameof(libraryEntry));
}
else if (ContainsEntryWithUID(libraryEntry.UID))
{
throw new ArgumentException();
}
else
{
this.entries.Add(libraryEntry);
nextUID = Math.Max(nextUID, libraryEntry.UID + 1);
}
}
public int CompareTo(PuzzleLibraryEntry other)
{
return(this.UID.CompareTo(other.UID));
}
public bool Equals(PuzzleLibraryEntry that)
{
return(this.UID == that.UID);
}
