Books: Ensure backward compatibility for older written books

This commit is contained in:
Jean-Patrick Guerrero 2016-03-22 18:30:23 +01:00
parent da0cc7f6f6
commit 22215dffff

View file

@ -14,17 +14,15 @@ minetest.register_craftitem("default:paper", {
local function book_on_use(itemstack, user)
local player_name = user:get_player_name()
local data = minetest.deserialize(itemstack:get_metadata())
local formspec, title, text, text_len, page, page_max, cpp, owner =
"", "", "", 1, 1, 1, 1, player_name
local formspec, title, text, owner = "", "", "", player_name
if data then
title = data.title
text = data.text
owner = data.owner
text_len = data.text_len
page = data.page
page_max = data.page_max
cpp = data.chars_per_page
page = data.page or 1
page_max = data.page_max or 1
cpp = data.chars_per_page or 650
end
if owner == player_name then
@ -96,6 +94,8 @@ minetest.register_on_player_receive_fields(function(player, formname, fields)
elseif fields.book_next or fields.book_prev then
local data = minetest.deserialize(stack:get_metadata())
if not data.page then return end
if fields.book_next then
data.page = data.page + 1
if data.page > data.page_max then