Save WrittenBooks

Hello,

is there a way to virtually save books?
I tried getting the damage value of the books but no book has a damage value.
What values must i save to recreate a book out of plain text?

Thanks

 

Last i remember, there isnt really a fleshed out api for it yet, so youre gonna have to delve deeper, but heres some code on how to WRITE a book (you can probably figure out how to READ from this code)

edit: it works similarly to the configuration api, actually.



ItemStack book = //Get your book somehow
CraftItemStack stack = (CraftItemStack)book; //gets the minecraft object book
NBTTagCompound bookData = stack.getHandle().getTag(); //gets the tag compound

Now, from here, im not sure how to get the array list of pages. Im fairly sure you can get the list via:
bookData.getList("pages");

However, i have no idea how to get the pages text from that, as it returns an NBTTagList. Lemme see if i can find anything for ya

edit2:

Okay heres what i think ive figured out:

first up, you can use it similarly to a list of sorts. Since it has a method for figuring out how many indices there are, and a method for returning the value at a specific one, you can do this:

for(int i = 0; i<bookData.size() ; i++){
NBTBase base = bookData.get(i);
}

Now, and i must stress, this is 100% not tested so far, but, NBTBase's are basically a superclass to all NBT value types ( i think ) as such, in this situation, i believe these NBTBase objects that it returns will be NBTTagStrings. So, try this:

NBTBase base = bookData.get(i);
NBTTagString nbtstring = (NBTTagString)base;


Once you've casted it to an nbt string, you can grab the string from it

NBTTagString nbtstring = (NBTTagString)base;
String page = nbtstring.data();

This page will be the test per page. Also, conviniently enough, at this point, i+1 = page number, so theres that too!

if you wanted to order the pages into a hashmap, you could do this:

HashMap<Integer, String> pages;

then add each page into the hashmap, inside the loop.

pages.put(i+1,page);


Alright so thats a lot of stuff. Lets clean up the code, and make it nice and pretty. In the next example, we'll save the entire book to a text file in the plugins data folder.

Code:

public void writeBookToFile(ItemStack book){
//test if book
if(!book.getType() == Material.WRITTEN_BOOK){
  return;
}
 
//get book data
NBTTagCompound bookData = ((CraftItemStack)book).getHandle().getTag();
 
//getting actual information!
String author, title;
author = bookData.getString("author");
title = bookData.getString("title");
 
//we'll store our pages here
HashMap<Integer,String> pages = new HashMap<Integer,String>();
 
//heres our pages in the actual object
NBTTagList tagList = bookData.getList("pages");
 
//grabbing pages
for(int i = 0 ; tagList.size() ; i++){
  String page = ((NBTTagString)tagList.get(i)).data
  pages.put(i+1,page);
}
 
//creates a new file named by the title of the book. It will override any file that already exists there by that name though. careful.
File txt = new File(plugin.getDataFolder(),title+".txt");
txt.createNewFile();
 
//create our writer
BufferedWriter out = new BufferedWriter(new FileWriter(txt));
 
//write stuff
out.write("The title of this book is: " + title);
out.newLine();
out.write("It was written by: "+author);
out.newLine();
 
//write pages
for(int i = 1 ; i<pages.size() ; i++){
  String page = pages.get(i);
  out.write("Page "+i);
  out.newLine();
  out.write(page);
  out.newLine();
}
 
//close
out.close();
 
}

 

Thank you very much, this was really helpful!