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Books: Ensure backward compatibility for older written books

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This commit is contained in:
Jean-Patrick Guerrero 2016-03-23 19:31:25 +01:00 committed by paramat
parent 7a29d26e3e
commit 6749da1070
1 changed files with 13 additions and 9 deletions
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22
mods/default/craftitems.lua
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@ -14,17 +14,19 @@ 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
local page, page_max, cpp = 1, 1, 650
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
if data.page then
page = data.page
page_max = data.page_max
cpp = data.chars_per_page
end
end
if owner == player_name then
@ -41,11 +43,11 @@ local function book_on_use(itemstack, user)
"label[0.5,0.5;by " .. owner .. "]" ..
"tablecolumns[color;text]" ..
"tableoptions[background=#00000000;highlight=#00000000;border=false]" ..
"table[0.4,0;7,0.5;title;#FFFF00," .. minetest.formspec_escape(title) .. "]"..
"textarea[0.5,1.5;7.5,7;;".. minetest.formspec_escape(text:sub(
"table[0.4,0;7,0.5;title;#FFFF00," .. minetest.formspec_escape(title) .. "]" ..
"textarea[0.5,1.5;7.5,7;;" .. minetest.formspec_escape(text:sub(
(cpp * page) - cpp, cpp * page)) .. ";]" ..
"button[2.4,7.6;0.8,0.8;book_prev;<]" ..
"label[3.2,7.7;Page " .. page .. " of " .. page_max .. "]"..
"label[3.2,7.7;Page " .. page .. " of " .. page_max .. "]" ..
"button[4.9,7.6;0.8,0.8;book_next;>]"
end
@ -96,6 +98,8 @@ 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