Make books writable

diff --git a/mods/default/craftitems.lua b/mods/default/craftitems.lua
index 539f6b430583ce0411b1a76ea642fccc1bcc7162..dd5ae51fdf72ac24e517f29338b6d43a73820668 100644 (file)
--- a/mods/default/craftitems.lua
+++ b/mods/default/craftitems.lua
@@ -11,10 +11,79 @@ minetest.register_craftitem("default:paper", {
        inventory_image = "default_paper.png",
 })
 
+local function book_on_use(itemstack, user, pointed_thing)
+       local player_name = user:get_player_name()
+       local data = minetest.deserialize(itemstack:get_metadata())
+       local title, text, owner = "", "", player_name
+       if data then
+               title, text, owner = data.title, data.text, data.owner
+       end
+       local formspec
+       if owner == player_name then
+               formspec = "size[8,8]"..default.gui_bg..
+                       "field[0.5,1;7.5,0;title;Title:;"..
+                               minetest.formspec_escape(title).."]"..
+                       "textarea[0.5,1.5;7.5,7;text;Contents:;"..
+                               minetest.formspec_escape(text).."]"..
+                       "button_exit[2.5,7.5;3,1;save;Save]"
+       else
+               formspec = "size[8,8]"..default.gui_bg..
+                       "label[1,0.5;"..minetest.formspec_escape(title).."]"..
+                       "label[0.5,1.5;"..minetest.formspec_escape(text).."]"
+       end
+       minetest.show_formspec(user:get_player_name(), "default:book", formspec)
+end
+
+minetest.register_on_player_receive_fields(function(player, form_name, fields)
+       if form_name ~= "default:book" or not fields.save or
+                       fields.title == "" or fields.text == "" then
+               return
+       end
+       local inv = player:get_inventory()
+       local stack = player:get_wielded_item()
+       local new_stack, data
+       if stack:get_name() ~= "default:book_written" then
+               local count = stack:get_count()
+               if count == 1 then
+                       stack:set_name("default:book_written")
+               else
+                       stack:set_count(count - 1)
+                       new_stack = ItemStack("default:book_written")
+               end
+       else
+               data = minetest.deserialize(stack:get_metadata())
+       end
+       if not data then data = {} end
+       data.title = fields.title
+       data.text = fields.text
+       data.owner = player:get_player_name()
+       local data_str = minetest.serialize(data)
+       if new_stack then
+               new_stack:set_metadata(data_str)
+               if inv:room_for_item("main", new_stack) then
+                       inv:add_item("main", new_stack)
+               else
+                       minetest.add_item(player:getpos(), new_stack)
+               end
+       else
+               stack:set_metadata(data_str)
+       end
+       player:set_wielded_item(stack)
+end)
+
 minetest.register_craftitem("default:book", {
        description = "Book",
        inventory_image = "default_book.png",
        groups = {book=1},
+       on_use = book_on_use,
+})
+
+minetest.register_craftitem("default:book_written", {
+       description = "Book With Text",
+       inventory_image = "default_book.png",
+       groups = {book=1, not_in_creative_inventory=1},
+       stack_max = 1,
+       on_use = book_on_use,
 })
 
 minetest.register_craftitem("default:coal_lump", {