internal void SetIndices(BookBlockIndices indices)
{
m_currentBookIndex = indices.BookIndex;
m_currentBook = m_books[m_currentBookIndex];
m_currentBlockIndex = indices.BlockIndex;
m_currentBlock = m_currentBook.GetScriptBlocks()[m_currentBlockIndex];
}
public Block PeekNthPreviousBlockWithinBook(int n, Block baseLineBlock)
{
if (baseLineBlock == m_currentBlock)
{
return(PeekNthPreviousBlockWithinBook(n));
}
BookBlockIndices indices = GetIndicesOfSpecificBlock(baseLineBlock);
return(PeekNthPreviousBlockWithinBook(n, indices.BookIndex, indices.BlockIndex));
}
public BlockNavigator(IReadOnlyList <BookScript> books)
{
m_books = books;
m_currentBook = m_books.FirstOrDefault(b => b.HasScriptBlocks);
if (m_currentBook == null)
{
throw new ArgumentException("The list of books must contain at least one block.");
}
m_currentIndices = new BookBlockIndices(0, 0);
}