local S = default.get_translator
local esc = core.formspec_escape
local formspec_size = "size[8,8]"

local function formspec_core(tab)
    if tab == nil then tab = 1 else tab = tostring(tab) end
    return "tabheader[0,0;book_header;" ..
        esc(S("Write")) .. "," ..
        esc(S("Read")) .. ";" ..
        tab .. ";false;false]"
end

local function formspec_write(title, text)
    return "field[0.5,1;7.5,0;title;" .. esc(S("Title:")) .. ";" ..
        esc(title) .. "]" ..
        "textarea[0.5,1.5;7.5,7;text;" .. esc(S("Contents:")) .. ";" ..
        esc(text) .. "]" ..
        "button_exit[2.5,7.5;3,1;save;" .. esc(S("Save")) .. "]"
end

local function formspec_read(owner, title, string, text, page, page_max)
    return "label[0.5,0.5;" .. esc(S("by @1", owner)) .. "]" ..
        "tablecolumns[color;text]" ..
        "tableoptions[background=#00000000;highlight=#00000000;border=false]" ..
        "table[0.4,0;7,0.5;title;#FFFF00," .. esc(title) .. "]" ..
        "textarea[0.5,1.5;7.5,7;;" ..
        esc(string ~= "" and string or text) .. ";]" ..
        "button[2.4,7.6;0.8,0.8;book_prev;<]" ..
        "label[3.2,7.7;" .. esc(S("Page @1 of @2", page, page_max)) .. "]" ..
        "button[4.9,7.6;0.8,0.8;book_next;>]"
end

local function formspec_string(lpp, page, lines, string)
    for i = ((lpp * page) - lpp) + 1, lpp * page do
        if not lines[i] then break end
        string = string .. lines[i] .. "\n"
    end
    return string
end

local book_writers = {}

core.register_on_leaveplayer(function(player)
    book_writers[player:get_player_name()] = nil
end)

local tab_number
local lpp = 14 -- Lines per book's page
local function book_on_use(itemstack, user)
    local player_name = user:get_player_name()
    local meta = itemstack:get_meta()
    local title, text, owner = "", "", player_name
    local page, page_max, lines, string = 1, 1, {}, ""

    -- Backwards compatibility
    local old_data = core.deserialize(itemstack:get_metadata())
    if old_data then
        meta:from_table({ fields = old_data })
    end

    local data = meta:to_table().fields

    if data.owner then
        title = data.title or ""
        text = data.text or ""
        owner = data.owner

        for str in (text .. "\n"):gmatch("([^\n]*)[\n]") do
            lines[#lines + 1] = str
        end

        if data.page then
            page = data.page
            page_max = data.page_max
            string = formspec_string(lpp, page, lines, string)
        end
    end

    local formspec
    if title == "" and text == "" then
        formspec = formspec_write(title, text)
    elseif owner == player_name then
        local tab = tab_number or 1
        if tab == 2 then
            formspec = formspec_core(tab) ..
                formspec_read(owner, title, string, text, page, page_max)
        else
            formspec = formspec_core(tab) .. formspec_write(title, text)
        end
    else
        formspec = formspec_read(owner, title, string, text, page, page_max)
    end

    core.show_formspec(player_name, "default:book", formspec_size .. formspec)
    -- Store the wield index in case the user accidentally switches before the formspec is shown
    book_writers[player_name] = { wield_index = user:get_wield_index() }
    return itemstack
end

local max_text_size = 10000
local max_title_size = 80
local short_title_size = 35
core.register_on_player_receive_fields(function(player, formname, fields)
    if formname ~= "default:book" then
        return
    end
    local player_name = player:get_player_name()
    local inv = player:get_inventory()
    if not book_writers[player_name] then
        return
    end
    local wield_index = book_writers[player_name].wield_index
    local wield_list = player:get_wield_list()
    local stack = inv:get_stack(wield_list, wield_index)
    local written = stack:get_name() == "default:book_written"
    if stack:get_name() ~= "default:book" and not written then
        -- No book in the wield slot, abort & inform the player
        core.chat_send_player(player_name, S("The book you were writing to mysteriously disappeared."))
        return
    end
    local data = stack:get_meta():to_table().fields

    local title = data.title or ""
    local text = data.text or ""

    if fields.book_header ~= nil and data.owner == player_name then
        local contents
        local tab = tonumber(fields.book_header)
        if tab == 1 then
            contents = formspec_core(tab) ..
                formspec_write(title, text)
        elseif tab == 2 then
            local lines, string = {}, ""
            for str in (text .. "\n"):gmatch("([^\n]*)[\n]") do
                lines[#lines + 1] = str
            end
            string = formspec_string(lpp, data.page, lines, string)
            contents = formspec_read(player_name, title, string,
                text, data.page, data.page_max)
        end
        tab_number = tab
        local formspec = formspec_size .. formspec_core(tab) .. contents
        core.show_formspec(player_name, "default:book", formspec)
        return
    end

    if fields.quit then
        book_writers[player_name] = nil
    end

    if fields.save and fields.title and fields.text then
        local new_stack
        if not 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
        end

        if data.owner ~= player_name and title ~= "" and text ~= "" then
            return
        end

        if not data then data = {} end
        data.title = fields.title:sub(1, max_title_size)
        data.owner = player:get_player_name()
        local short_title = data.title
        -- Don't bother triming the title if the trailing dots would make it longer
        if #short_title > short_title_size + 3 then
            short_title = short_title:sub(1, short_title_size) .. "..."
        end
        data.description = S("\"@1\" by @2", short_title, data.owner)
        data.text = fields.text:sub(1, max_text_size)
        data.text = data.text:gsub("\r\n", "\n"):gsub("\r", "\n")
        data.text = data.text:gsub("[%z\1-\8\11-\31\127]", "") -- strip naughty control characters (keeps \t and \n)
        data.page = 1
        data.page_max = math.ceil((#data.text:gsub("[^\n]", "") + 1) / lpp)

        if new_stack then
            new_stack:get_meta():from_table({ fields = data })
            if inv:room_for_item("main", new_stack) then
                inv:add_item("main", new_stack)
            else
                core.add_item(player:get_pos(), new_stack)
            end
        else
            stack:get_meta():from_table({ fields = data })
        end
    elseif fields.book_next or fields.book_prev then
        if not data.page then
            return
        end

        data.page = tonumber(data.page)
        data.page_max = tonumber(data.page_max)

        if fields.book_next then
            data.page = data.page + 1
            if data.page > data.page_max then
                data.page = 1
            end
        else
            data.page = data.page - 1
            if data.page == 0 then
                data.page = data.page_max
            end
        end

        stack:get_meta():from_table({ fields = data })
        stack = book_on_use(stack, player)
    end

    -- Update stack
    inv:set_stack(wield_list, wield_index, stack)
end)

-- local bookshelf_formspec =
--     "size[8,7;]" ..
--     "list[context;books;0,0.3;8,2;]" ..
--     "list[current_player;main;0,2.85;8,1;]" ..
--     "list[current_player;main;0,4.08;8,3;8]" ..
--     "listring[context;books]" ..
--     "listring[current_player;main]" ..
--     default.get_hotbar_bg(0, 2.85)

-- local function update_bookshelf(pos)
--     local meta = core.get_meta(pos)
--     local inv = meta:get_inventory()
--     local invlist = inv:get_list("books")

--     local formspec = bookshelf_formspec
--     -- Inventory slots overlay
--     local bx, by = 0, 0.3
--     local n_written, n_empty = 0, 0
--     for i = 1, 16 do
--         if i == 9 then
--             bx = 0
--             by = by + 1
--         end
--         local stack = invlist[i]
--         if stack:is_empty() then
--             formspec = formspec ..
--                 "image[" .. bx .. "," .. by .. ";1,1;default_bookshelf_slot.png]"
--         else
--             local metatable = stack:get_meta():to_table() or {}
--             if metatable.fields and metatable.fields.text then
--                 n_written = n_written + stack:get_count()
--             else
--                 n_empty = n_empty + stack:get_count()
--             end
--         end
--         bx = bx + 1
--     end
--     meta:set_string("formspec", formspec)
--     if n_written + n_empty == 0 then
--         meta:set_string("infotext", S("Empty Bookshelf"))
--     else
--         meta:set_string("infotext", S("Bookshelf (@1 written, @2 empty books)", n_written, n_empty))
--     end
-- end

local default_bookshelf_def = {
    -- description = S("Bookshelf"),
    drawtype = "mesh",
    mesh = "voxelmodel.obj",
    tiles = { "voxelmodel_bookshelf.png" },
    use_texture_alpha = "clip",
    inventory_image =
    "[inventorycube{default_wood.png{default_wood.png&default_bookshelf.png{default_wood.png&default_wood.png",
    -- wield_image =
    -- "[inventorycube{default_wood.png{default_wood.png&default_bookshelf.png{default_wood.png&default_wood.png",
    paramtype = "light",
    -- paramtype2 = "facedir",
    -- is_ground_content = false,
    -- groups = { choppy = 3, oddly_breakable_by_hand = 2, flammable = 3 },
    -- sounds = xcompat.sounds.node_sound_wood_defaults(),

    -- on_construct = function(pos)
    --     local meta = core.get_meta(pos)
    --     local inv = meta:get_inventory()
    --     inv:set_size("books", 8 * 2)
    --     update_bookshelf(pos)
    -- end,
    -- can_dig = function(pos, player)
    --     local inv = core.get_meta(pos):get_inventory()
    --     return inv:is_empty("books")
    -- end,
    -- allow_metadata_inventory_put = function(pos, listname, index, stack)
    --     if core.get_item_group(stack:get_name(), "book") ~= 0 then
    --         return stack:get_count()
    --     end
    --     return 0
    -- end,
    -- on_blast = function(pos)
    --     local drops = {}
    --     default.get_inventory_drops(pos, "books", drops)
    --     drops[#drops + 1] = "default:bookshelf"
    --     core.remove_node(pos)
    --     return drops
    -- end,
}
-- default.set_inventory_action_loggers(default_bookshelf_def, "bookshelf")
core.override_item("default:bookshelf", default_bookshelf_def)

core.register_node(":default:book", {
    description = S("Book"),
    -- tiles = { "default_book.png" },
    tiles = { 'Red-Book-Slices.png' },
    -- inventory_image = "default_book.png",
    -- wield_image = "default_book.png",
    inventory_image = 'Red-Book-Inv.png',
    -- wield_image = 'Red-Book-Inv.png',
    drawtype = 'mesh',
    paramtype = 'light',
    paramtype2 = 'facedir',
    -- selection_box = {
    --     type = 'fixed',
    --     fixed = { -8 / 16, -8 / 16, -8 / 16, 8 / 16, -7 / 16, 8 / 16 }
    -- },
    -- mesh = 'extrusion_mesh_16.obj',
    mesh = 'Book.obj',
    use_texture_alpha = 'clip',
    walkable = false,
    is_ground_content = false,
    groups = {
        book = 1,
        flammable = 3,
        falling_node = 1,
        oddly_breakable_by_hand = 3,
        snappy = 3,
        choppy = 3,
        attached_node = 1,
        dig_immediate = 3
    },
    on_use = book_on_use,
})

core.register_node(":default:book_written", {
    description = S("Book with Text"),
    tiles = { "default_book_written.png" },
    inventory_image = "default_book_written.png",
    wield_image = "default_book_written.png",
    drawtype = 'mesh',
    paramtype = 'light',
    paramtype2 = 'facedir',
    selection_box = {
        type = 'fixed',
        fixed = { -8 / 16, -8 / 16, -8 / 16, 8 / 16, -7 / 16, 8 / 16 }
    },
    mesh = 'extrusion_mesh_16.obj',
    use_texture_alpha = 'clip',
    walkable = false,
    is_ground_content = false,
    groups = {
        book = 1,
        not_in_creative_inventory = 1,
        flammable = 3,
        falling_node = 1,
        oddly_breakable_by_hand = 3,
        snappy = 3,
        choppy = 3,
        attached_node = 1,
        dig_immediate = 3
    },
    stack_max = 1,
    on_use = book_on_use,
})

core.register_node(":default:clay_brick", {
    description = S("Clay Brick"),
    tiles = { "default_clay_brick.png" },
    inventory_image = "default_clay_brick.png",
    wield_image = "default_clay_brick.png",
    drawtype = 'mesh',
    paramtype = 'light',
    paramtype2 = 'facedir',
    selection_box = {
        type = 'fixed',
        fixed = { -8 / 16, -8 / 16, -8 / 16, 8 / 16, -7 / 16, 8 / 16 }
    },
    mesh = 'extrusion_mesh_16.obj',
    use_texture_alpha = 'clip',
    walkable = false,
    is_ground_content = false,
    groups = {
        falling_node = 1,
        oddly_breakable_by_hand = 3,
        snappy = 3,
        choppy = 3,
        attached_node = 1,
        dig_immediate = 3
    },
})

core.register_node(":default:clay_lump", {
    description = S("Clay Lump"),
    tiles = { "default_clay_lump.png" },
    inventory_image = "default_clay_lump.png",
    wield_image = "default_clay_lump.png",
    drawtype = 'mesh',
    paramtype = 'light',
    paramtype2 = 'none',
    selection_box = {
        type = 'fixed',
        fixed = { -8 / 16, -8 / 16, -8 / 16, 8 / 16, -7 / 16, 8 / 16 }
    },
    mesh = 'extrusion_mesh_16.obj',
    use_texture_alpha = 'clip',
    walkable = false,
    is_ground_content = false,
    groups = {
        falling_node = 1,
        oddly_breakable_by_hand = 3,
        snappy = 3,
        choppy = 3,
        attached_node = 1,
        dig_immediate = 3
    },
})

core.register_node(":default:coal_lump", {
    description = S("Coal Lump"),
    tiles = { "default_coal_lump.png" },
    inventory_image = "default_coal_lump.png",
    wield_image = "default_coal_lump.png",
    drawtype = 'mesh',
    paramtype = 'light',
    paramtype2 = 'none',
    selection_box = {
        type = 'fixed',
        fixed = { -8 / 16, -8 / 16, -8 / 16, 8 / 16, -7 / 16, 8 / 16 }
    },
    mesh = 'extrusion_mesh_16.obj',
    use_texture_alpha = 'clip',
    walkable = false,
    is_ground_content = false,
    groups = {
        coal = 1,
        flammable = 1,
        falling_node = 1,
        oddly_breakable_by_hand = 3,
        snappy = 3,
        choppy = 3,
        attached_node = 1,
        dig_immediate = 3
    }
})

core.register_node(":default:copper_lump", {
    description = S("Copper Lump"),
    tiles = { "default_copper_lump.png" },
    inventory_image = "default_copper_lump.png",
    wield_image = "default_copper_lump.png",
    drawtype = 'mesh',
    paramtype = 'light',
    paramtype2 = 'none',
    selection_box = {
        type = 'fixed',
        fixed = { -8 / 16, -8 / 16, -8 / 16, 8 / 16, -7 / 16, 8 / 16 }
    },
    mesh = 'extrusion_mesh_16.obj',
    use_texture_alpha = 'clip',
    walkable = false,
    is_ground_content = false,
    groups = {
        falling_node = 1,
        oddly_breakable_by_hand = 3,
        snappy = 3,
        choppy = 3,
        attached_node = 1,
        dig_immediate = 3
    },
})

core.register_node(":default:diamond", {
    description = S("Diamond"),
    tiles = { "default_diamond.png" },
    inventory_image = "default_diamond.png",
    wield_image = "default_diamond.png",
    drawtype = 'mesh',
    paramtype = 'light',
    paramtype2 = 'none',
    selection_box = {
        type = 'fixed',
        fixed = { -8 / 16, -8 / 16, -8 / 16, 8 / 16, -7 / 16, 8 / 16 }
    },
    mesh = 'extrusion_mesh_16.obj',
    use_texture_alpha = 'clip',
    walkable = false,
    is_ground_content = false,
    groups = {
        falling_node = 1,
        oddly_breakable_by_hand = 3,
        snappy = 3,
        choppy = 3,
        attached_node = 1,
        dig_immediate = 3
    },
})

core.register_node(":default:flint", {
    description = S("Flint"),
    tiles = { "default_flint.png" },
    inventory_image = "default_flint.png",
    wield_image = "default_flint.png",
    drawtype = 'mesh',
    paramtype = 'light',
    paramtype2 = 'none',
    selection_box = {
        type = 'fixed',
        fixed = { -8 / 16, -8 / 16, -8 / 16, 8 / 16, -7 / 16, 8 / 16 }
    },
    mesh = 'extrusion_mesh_16.obj',
    use_texture_alpha = 'clip',
    walkable = false,
    is_ground_content = false,
    groups = {
        falling_node = 1,
        oddly_breakable_by_hand = 3,
        snappy = 3,
        choppy = 3,
        attached_node = 1,
        dig_immediate = 3
    },
})

core.register_node(":default:gold_lump", {
    description = S("Gold Lump"),
    tiles = { "default_gold_lump.png" },
    inventory_image = "default_gold_lump.png",
    wield_image = "default_gold_lump.png",
    drawtype = 'mesh',
    paramtype = 'light',
    paramtype2 = 'none',
    selection_box = {
        type = 'fixed',
        fixed = { -8 / 16, -8 / 16, -8 / 16, 8 / 16, -7 / 16, 8 / 16 }
    },
    mesh = 'extrusion_mesh_16.obj',
    use_texture_alpha = 'clip',
    walkable = false,
    is_ground_content = false,
    groups = {
        falling_node = 1,
        oddly_breakable_by_hand = 3,
        snappy = 3,
        choppy = 3,
        attached_node = 1,
        dig_immediate = 3
    },
})

core.register_node(":default:iron_lump", {
    description = S("Iron Lump"),
    tiles = { "default_iron_lump.png" },
    inventory_image = "default_iron_lump.png",
    wield_image = "default_iron_lump.png",
    drawtype = 'mesh',
    paramtype = 'light',
    paramtype2 = 'none',
    selection_box = {
        type = 'fixed',
        fixed = { -8 / 16, -8 / 16, -8 / 16, 8 / 16, -7 / 16, 8 / 16 }
    },
    mesh = 'extrusion_mesh_16.obj',
    use_texture_alpha = 'clip',
    walkable = false,
    is_ground_content = false,
    groups = {
        falling_node = 1,
        oddly_breakable_by_hand = 3,
        snappy = 3,
        choppy = 3,
        attached_node = 1,
        dig_immediate = 3
    },
})

core.register_node(":default:mese_crystal", {
    description = S("Mese Crystal"),
    tiles = { "default_mese_crystal.png" },
    inventory_image = "default_mese_crystal.png",
    wield_image = "default_mese_crystal.png",
    drawtype = 'mesh',
    paramtype = 'light',
    paramtype2 = 'none',
    selection_box = {
        type = 'fixed',
        fixed = { -8 / 16, -8 / 16, -8 / 16, 8 / 16, -7 / 16, 8 / 16 }
    },
    mesh = 'extrusion_mesh_16.obj',
    use_texture_alpha = 'clip',
    walkable = false,
    is_ground_content = false,
    groups = {
        falling_node = 1,
        oddly_breakable_by_hand = 3,
        snappy = 3,
        choppy = 3,
        attached_node = 1,
        dig_immediate = 3
    },
})

core.register_node(":default:mese_crystal_fragment", {
    description = S("Mese Crystal Fragment"),
    tiles = { "default_mese_crystal_fragment.png" },
    inventory_image = "default_mese_crystal_fragment.png",
    wield_image = "default_mese_crystal_fragment.png",
    drawtype = 'mesh',
    paramtype = 'light',
    paramtype2 = 'none',
    selection_box = {
        type = 'fixed',
        fixed = { -8 / 16, -8 / 16, -8 / 16, 8 / 16, -7 / 16, 8 / 16 }
    },
    mesh = 'extrusion_mesh_16.obj',
    use_texture_alpha = 'clip',
    walkable = false,
    is_ground_content = false,
    groups = {
        falling_node = 1,
        oddly_breakable_by_hand = 3,
        snappy = 3,
        choppy = 3,
        attached_node = 1,
        dig_immediate = 3
    },
})

core.register_node(":default:obsidian_shard", {
    description = S("Obsidian Shard"),
    tiles = { "default_obsidian_shard.png" },
    inventory_image = "default_obsidian_shard.png",
    wield_image = "default_obsidian_shard.png",
    drawtype = 'mesh',
    paramtype = 'light',
    paramtype2 = 'none',
    selection_box = {
        type = 'fixed',
        fixed = { -8 / 16, -8 / 16, -8 / 16, 8 / 16, -7 / 16, 8 / 16 }
    },
    mesh = 'extrusion_mesh_16.obj',
    use_texture_alpha = 'clip',
    walkable = false,
    is_ground_content = false,
    groups = {
        falling_node = 1,
        oddly_breakable_by_hand = 3,
        snappy = 3,
        choppy = 3,
        attached_node = 1,
        dig_immediate = 3
    },
})

core.register_node(":default:paper", {
    description = S("Paper"),
    tiles = { "default_paper.png" },
    inventory_image = "default_paper.png",
    wield_image = "default_paper.png",
    drawtype = 'mesh',
    paramtype = 'light',
    paramtype2 = 'facedir',
    selection_box = {
        type = 'fixed',
        fixed = { -8 / 16, -8 / 16, -8 / 16, 8 / 16, -7 / 16, 8 / 16 }
    },
    mesh = 'extrusion_mesh_16.obj',
    use_texture_alpha = 'clip',
    walkable = false,
    is_ground_content = false,
    groups = {
        flammable = 3,
        falling_node = 1,
        oddly_breakable_by_hand = 3,
        snappy = 3,
        choppy = 3,
        attached_node = 1,
        dig_immediate = 3
    }
})

core.register_node(':default:stick', {
    description = S('Stick'),
    drawtype = 'mesh',
    paramtype = 'light',
    paramtype2 = 'facedir',
    selection_box = {
        type = 'fixed',
        fixed = { -8 / 16, -8 / 16, -8 / 16, 8 / 16, -7 / 16, 8 / 16 }
    },
    mesh = 'extrusion_mesh_16.obj',
    tiles = { 'default_stick.png' },
    use_texture_alpha = 'clip',
    inventory_image = "default_stick.png",
    wield_image = "default_stick.png",
    floodable = true,
    walkable = false,
    sunlight_propagates = true,
    buildable_to = true,
    is_ground_content = false,
    groups = {
        stick = 1,
        falling_node = 1,
        oddly_breakable_by_hand = 3,
        snappy = 3,
        flammable = 2,
        choppy = 3,
        attached_node = 1,
        dig_immediate = 3,
    },
    sounds = default.node_sound_wood_defaults()
})

core.register_node(":default:tin_lump", {
    description = S("Tin Lump"),
    tiles = { "default_tin_lump.png" },
    inventory_image = "default_tin_lump.png",
    wield_image = "default_tin_lump.png",
    drawtype = 'mesh',
    paramtype = 'light',
    paramtype2 = 'none',
    selection_box = {
        type = 'fixed',
        fixed = { -8 / 16, -8 / 16, -8 / 16, 8 / 16, -7 / 16, 8 / 16 }
    },
    mesh = 'extrusion_mesh_16.obj',
    use_texture_alpha = 'clip',
    walkable = false,
    is_ground_content = false,
    groups = {
        falling_node = 1,
        oddly_breakable_by_hand = 3,
        snappy = 3,
        choppy = 3,
        attached_node = 1,
        dig_immediate = 3
    },
})

if not core.global_exists('ingots') then
    local function register_ingots(ingot_item, texture)
        --checks, whether the item name is a valid item (thanks 'puzzlecube')
        if not core.registered_items[ingot_item] then
            core.log("warning", ingot_item .. " is not registered. Skipping ingot registration")
            return
        end

        local node_name = core.get_current_modname() .. ":" .. ingot_item:match(":(.+)$") .. "_big_"

        --this way there is no need for a separate on_punch function for a stack of 1 ingot
        core.register_alias(node_name .. "0", "air")

        --gives the ingot_item the ability to be placed and increase already placed stacks of ingots
        core.override_item(ingot_item, {
            -- wield_image = core.registered_items[ingot_item].inventory_image .. '^[transform4',
            on_place = function(itemstack, placer, pointed_thing)
                local player_name = placer:get_player_name()
                local pos = pointed_thing.above
                if core.is_protected(pos, player_name) then
                    return
                end
                local under_node = core.get_node(pointed_thing.under)
                local under_name = under_node.name
                local under_def = core.registered_nodes[under_name]

                if under_def._ingot_count and under_def._ingot_count < 8 then
                    core.set_node(pointed_thing.under,
                        { name = node_name .. under_def._ingot_count + 1, param2 = under_node.param2 })
                    if not core.is_creative_enabled(player_name) then
                        itemstack:take_item()
                    end
                else
                    local _, pos = core.item_place(ItemStack(node_name .. "1"), placer, pointed_thing)
                    if pos and not core.is_creative_enabled(player_name) then
                        itemstack:take_item()
                    end
                end

                return itemstack
            end
        })

        --registers 'stack_size' number of nodes, each has one more ingot in it than the last
        for i = 1, 8 do
            local box = {
                type = "fixed",
                fixed = {
                    --rectangular box which encompases all placed ingots
                    { -0.5, -0.5, -0.5, 0.5, (((i + 1 - ((i + 1) % 2)) / 8) - 0.5), 0.5 }
                },
            }
            core.register_node(":" .. node_name .. i, {
                description = "ingots",
                drawtype = "mesh",
                tiles = { texture },
                mesh = "ingot_big_" .. i .. ".obj",
                selection_box = box,
                collision_box = box,
                paramtype = "light",
                paramtype2 = "facedir",
                groups = { cracky = 3, level = 2, not_in_creative_inventory = 1 },
                drop = ingot_item .. " " .. i,
                on_punch = function(pos, node, puncher, pointed_thing)
                    if not puncher then return end
                    local player_name = puncher:get_player_name()
                    local wield = puncher:get_wielded_item()

                    if core.is_protected(pos, player_name) then
                        return
                    end

                    --checks, so that a stack can be taken appart only by hand or relevant ingot_item
                    if wield:get_name() == ingot_item or wield:get_count() == 0 then
                        core.set_node(pos, { name = node_name .. i - 1, param2 = node.param2 })
                        if not core.is_creative_enabled(player_name) then
                            local stack = ItemStack(ingot_item)
                            puncher:get_inventory():add_item("main", stack)
                        end
                    end
                end,
                _ingot_count = i,
            })
            core.register_alias("ingots:" .. ingot_item:match(":(.+)$") .. "_big_" .. i,
                core.get_current_modname() .. ":" .. ingot_item:match(":(.+)$") .. "_big_" .. i)
        end
    end

    register_ingots("default:copper_ingot", "ingot_copper.png")
    register_ingots("default:tin_ingot", "ingot_tin.png")
    register_ingots("default:bronze_ingot", "ingot_bronze.png")
    register_ingots("default:steel_ingot", "ingot_steel.png")
    register_ingots("default:gold_ingot", "ingot_gold.png")
else
    for i = 1, 8 do
        core.register_alias(core.get_current_modname() .. ":copper_ingot_big_" .. i,
            "ingots:copper_ingot_big_" .. i)
        core.register_alias(core.get_current_modname() .. ":tin_ingot_big_" .. i, "ingots:tin_ingot_big_" .. i)
        core.register_alias(core.get_current_modname() .. ":bronze_ingot_big_" .. i,
            "ingots:bronze_ingot_big_" .. i)
        core.register_alias(core.get_current_modname() .. ":steel_ingot_big_" .. i,
            "ingots:steel_ingot_big_" .. i)
        core.register_alias(core.get_current_modname() .. ":gold_ingot_big_" .. i, "ingots:gold_ingot_big_" .. i)
    end
end