plot-books.lua

require 'https://gist.github.com/mkarneim/8deed890e0d92ef19506e889819b2e97'

function plot_books()
  print('Starting Plot Books')

  event = events.register('stop_plot_books')

  while not event.hasNext() do
    print('tick')

    for _, name in pairs(players.list()) do
      if 0 != cmd('testfor @p[name='..name..'] {Inventory:[{id:minecraft:writable_book,tag:{pages:["hello"]}}]}') then
        cmd('gamemode @p[name='..name..'] 0')
      end
      player = players.get(name)

      plaer.getInventory()
      print(toString(player))
    end

    sleep(1)
  end
end

function stop_plot_books()
  print('Stopping Plot Books')
  events.fire('stop_plot_books')
end

function toString(var)
  if type(var) == 'table' then
    return table.toString(var)
  end
  t = type(var)
  if t == 'function' or t == 'userdata' then
    return t
  end
  return var
end

function table.toString(table)
  result = '{'
  for k, v in pairs(table) do
    result = result .. toString(k) .. '=' .. toString(v) .. ','
  end
  endIndex = next(table) and -2 or -1
  return string.sub(result, 1, endIndex) .. '}'
end