private void SellBook(Genre genre, int index, bool eBook, List<Book> books, Player[] players, Market market, ref int demand)
{
int sellChance = rand.Next(0, 101);
if (books[index].SellChance >= sellChance)
{
if (!players[books[index].Owner].BookSold(books[index]))
return;
market.RemoveDemand(genre, eBook, 1, books[index].Owner);
demand -= 1;
if (books[index].Stock <= 0 && !eBook)
books.RemoveAt(index);
}
}