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Add hard limits to book title and book text length

This commit is contained in:
Wuzzy 2019-02-21 18:08:30 +01:00
parent 93c087997f
commit 236ef99359
1 changed files with 22 additions and 11 deletions
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33
mods/ITEMS/mcl_books/init.lua
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@ -1,3 +1,6 @@
local max_text_length = 4500 -- TODO: Increase to 12800 when scroll bar was added to written book
local max_title_length = 64
-- Book -- Book
minetest.register_craftitem("mcl_books:book", { minetest.register_craftitem("mcl_books:book", {
description = "Book", description = "Book",
@ -59,6 +62,10 @@ local make_description = function(title, author, generation)
return desc return desc
end end
local cap_text_length = function(text, max_length)
return string.sub(text, 1, max_length)
end
local write = function(itemstack, user, pointed_thing) local write = function(itemstack, user, pointed_thing)
-- Call on_rightclick if the pointed node defines it -- Call on_rightclick if the pointed node defines it
if pointed_thing.type == "node" then if pointed_thing.type == "node" then
@ -102,7 +109,8 @@ end
minetest.register_craftitem("mcl_books:writable_book", { minetest.register_craftitem("mcl_books:writable_book", {
description = "Book and Quill", description = "Book and Quill",
_doc_items_longdesc = "This item can be used to write down some notes.", _doc_items_longdesc = "This item can be used to write down some notes.",
_doc_items_usagehelp = "Hold it in the hand, then rightclick to read the current notes and edit then. You can edit the text as often as you like. You can also sign the book which turns it into a written book which you can stack, but it can't be edited anymore.", _doc_items_usagehelp = "Hold it in the hand, then rightclick to read the current notes and edit then. You can edit the text as often as you like. You can also sign the book which turns it into a written book which you can stack, but it can't be edited anymore.".."\n"..
"A book can hold up to 4500 characters. The title length is limited to 64 characters.",
inventory_image = "mcl_books_book_writable.png", inventory_image = "mcl_books_book_writable.png",
groups = { book=1 }, groups = { book=1 },
stack_max = 1, stack_max = 1,
@ -115,11 +123,12 @@ minetest.register_on_player_receive_fields(function ( player, formname, fields )
local stack = player:get_wielded_item() local stack = player:get_wielded_item()
if (stack:get_name() and (stack:get_name() == "mcl_books:writable_book")) then if (stack:get_name() and (stack:get_name() == "mcl_books:writable_book")) then
local meta = stack:get_meta() local meta = stack:get_meta()
local text = cap_text_length(fields.text, max_text_length)
if fields.ok then if fields.ok then
meta:set_string("text", fields.text) meta:set_string("text", text)
player:set_wielded_item(stack) player:set_wielded_item(stack)
elseif fields.sign then elseif fields.sign then
meta:set_string("text", fields.text) meta:set_string("text", text)
player:set_wielded_item(stack) player:set_wielded_item(stack)
local name = player:get_player_name() local name = player:get_player_name()
@ -138,15 +147,17 @@ minetest.register_on_player_receive_fields(function ( player, formname, fields )
local book = player:get_wielded_item() local book = player:get_wielded_item()
local name = player:get_player_name() local name = player:get_player_name()
if book:get_name() == "mcl_books:writable_book" then if book:get_name() == "mcl_books:writable_book" then
if fields.title == "" then local title = fields.title
fields.title = "Nameless Book" if string.len(title) == 0 then
title = "Nameless Book"
end end
title = cap_text_length(title, max_title_length)
local meta = newbook:get_meta() local meta = newbook:get_meta()
local text = get_text(book) local text = cap_text_length(get_text(book), max_text_length)
meta:set_string("title", fields.title) meta:set_string("title", title)
meta:set_string("author", name) meta:set_string("author", name)
meta:set_string("text", text) meta:set_string("text", text)
meta:set_string("description", make_description(fields.title, name, 0)) meta:set_string("description", make_description(title, name, 0))
-- The book copy counter. 0 = original, 1 = copy of original, 2 = copy of copy of original, … -- The book copy counter. 0 = original, 1 = copy of original, 2 = copy of copy of original, …
meta:set_int("generation", 0) meta:set_int("generation", 0)
@ -235,7 +246,7 @@ minetest.register_craft_predict(function(itemstack, player, old_craft_grid, craf
-- Valid copy. Let's update the description field of the result item -- Valid copy. Let's update the description field of the result item
-- so it is properly displayed in the crafting grid. -- so it is properly displayed in the crafting grid.
local imeta = itemstack:get_meta() local imeta = itemstack:get_meta()
local title = ometa:get_string("title") local title = cap_text_length(ometa:get_string("title"), max_title_length)
local author = ometa:get_string("author") local author = ometa:get_string("author")
-- Increase book generation and update description -- Increase book generation and update description
@ -283,11 +294,11 @@ minetest.register_on_craft(function(itemstack, player, old_craft_grid, craft_inv
-- Copy metadata -- Copy metadata
local imeta = itemstack:get_meta() local imeta = itemstack:get_meta()
local title = ometa:get_string("title") local title = cap_text_length(ometa:get_string("title"), max_title_length)
local author = ometa:get_string("author") local author = ometa:get_string("author")
imeta:set_string("title", title) imeta:set_string("title", title)
imeta:set_string("author", author) imeta:set_string("author", author)
imeta:set_string("text", text) imeta:set_string("text", cap_text_length(text, max_text_length))
-- Increase book generation and update description -- Increase book generation and update description
generation = generation + 1 generation = generation + 1