DW20 Books lua update

books.lua

--[[
  Books LUA file...
  Originally by Direwolf20
  Update by Jay
--]]

local data = {}
rednet.open("right")
p = peripheral.wrap("bottom")

function clearInv()
   for i = 1,16 do
      turtle.select(i)
      turtle.dropDown()
   end
end

function checkSlots(id)
   data = {}
   local slot
   local name
   local slots = p.getAllStacks()
   for i,j in pairs(slots) do
      slot = i
      --[[
        New mystcraft tables require you to use
        the myst_book key instead.
        @author Jay
      ]]
      name = j['myst_book']["destination"]
--      print(name)
      data[slot]=name
   end
   rednet.send(id,"done")
end

function removeSlot(slot)
   p.pushItem("up", slot, 1)
   rs.setOutput("left", true)
   sleep(1)
   rs.setOutput("left", false)
end

function book(slot,id)
   p.pushItem("up", slot, 1)
   turtle.select(1)
   turtle.drop()
   sleep(5)
   getBook()
   turtle.select(1)
   turtle.dropDown()
   rednet.send(tonumber(id), "done")
end

function getBook()
   turtle.suck()
end

function getNames(id)
   local nameTbl = textutils.serialize(data)
   rednet.send(tonumber(id), nameTbl)
end

clearInv()

while true do
   local id, msg, dis = rednet.receive()
   local newmsg = string.match(msg, "%a+")
--   print(msg)
   if newmsg == "checkSlots" then
     checkSlots(id) 
   elseif newmsg == "getNames" then
     getNames(id)
   elseif newmsg == "remove" then
     removeSlot(tonumber(string.match(msg, "%d+")))
     rednet.send(id,"done")
   elseif newmsg == "books" then
     slot = string.match(msg, "%d+")
     book(tonumber(slot), id)
   end
end

I just updated line 30, nothing more. Latest open peripherals has a different data structure for Mystcraft books, or maybe it's Mystcraft. So the turtle would always return zero and done to the main system. Updating line 30 to use the 'new' ( if it is ) myst_book array key works now.

Since I'm a PHP geek I found a print_r equivalent and dumped all the data from a single book to find that out, here's a good print_r to get table data if you'd like: http://pastebin.com/A7JScXWk