Add grindstone

LICENSE.txt

@@ -453,3 +453,104 @@ RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A
 FAILURE OF THE LIBRARY TO OPERATE WITH ANY OTHER SOFTWARE), EVEN IF
 SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
 DAMAGES.
+
+### Textures
+
+**CC-BY-SA-4.0, Pixel Perfection by XSSheep**, https://minecraft.curseforge.com/projects/pixel-perfection-freshly-updated
+
+- x_enchanting_symbol_1.png
+- x_enchanting_symbol_2.png
+- x_enchanting_symbol_3.png
+- x_enchanting_symbol_4.png
+- x_enchanting_symbol_5.png
+- x_enchanting_symbol_6.png
+- x_enchanting_symbol_7.png
+- x_enchanting_symbol_8.png
+- x_enchanting_symbol_9.png
+- x_enchanting_symbol_10.png
+- x_enchanting_symbol_11.png
+- x_enchanting_symbol_12.png
+- x_enchanting_symbol_13.png
+- x_enchanting_symbol_14.png
+- x_enchanting_symbol_15.png
+- x_enchanting_symbol_16.png
+- x_enchanting_symbol_17.png
+- x_enchanting_symbol_18.png
+- x_enchanting_symbol_19.png
+- x_enchanting_symbol_20.png
+- x_enchanting_symbol_21.png
+- x_enchanting_symbol_22.png
+- x_enchanting_symbol_23.png
+- x_enchanting_symbol_24.png
+- x_enchanting_symbol_25.png
+- x_enchanting_symbol_26.png
+
+**CC-BY-SA-4.0, by SaKeL**
+
+- x_enchanting_image_button_disabled.png
+- x_enchanting_image_button.png
+- x_enchanting_image_trade_1.png -- Derived from a texture by VanessaE (CC BY-SA 3.0)
+- x_enchanting_image_trade_2.png -- Derived from a texture by VanessaE (CC BY-SA 3.0)
+- x_enchanting_image_trade_3.png -- Derived from a texture by VanessaE (CC BY-SA 3.0)
+- x_enchanting_scroll_handles_mesh.png -- Derived from a textures by paramat (CC BY-SA 3.0) and TumeniNodes (CC BY-SA 3.0)
+- x_enchanting_scroll_mesh.png -- Derived from a texture TumeniNodes (CC BY-SA 3.0)
+- x_enchanting_scroll_particle.png
+- x_enchanting_table.png
+- x_enchanting_gui_slot_bg.png -- Derived from texture Pixel Perfection by XSSheep (CC-BY-SA-4.0)
+- x_enchanting_gui_cloth_bg.png -- Derived from texture Pixel Perfection by XSSheep (CC-BY-SA-4.0)
+- x_enchanting_gui_cloth_trade_bg.png -- Derived from texture Pixel Perfection by XSSheep (CC-BY-SA-4.0)
+- x_enchanting_gui_formbg.png -- Derived from texture Pixel Perfection by XSSheep (CC-BY-SA-4.0)
+- x_enchanting_gui_hb_bg.png -- Derived from texture Pixel Perfection by XSSheep (CC-BY-SA-4.0)
+
+### Models
+
+**CC-BY-SA-4.0, by SaKeL**
+
+- x_enchanting_scroll.b3d
+- x_enchanting_table.obj
+
+### Sounds
+
+**CC-BY-3.0, Kostas17**, https://freesound.org
+
+- x_enchanting_enchant.ogg
+
+**CC0-1.0, Zeinel**, https://freesound.org
+
+- x_enchanting_scroll.1.ogg
+- x_enchanting_scroll.2.ogg
+- x_enchanting_scroll.3.ogg
+- x_enchanting_scroll.4.ogg
+- x_enchanting_scroll.5.ogg
+- x_enchanting_scroll.6.ogg
+- x_enchanting_scroll.7.ogg
+- x_enchanting_scroll.8.ogg
+- x_enchanting_scroll.9.ogg
+
+**CC0-1.0, by Fission9**, https://freesound.org
+
+- x_enchanting_wood_footstep.1.ogg
+- x_enchanting_wood_footstep.2.ogg
+- x_enchanting_wood_footstep.3.ogg
+- x_enchanting_wood_footstep.4.ogg
+- x_enchanting_wood_footstep.5.ogg
+- x_enchanting_wood_footstep.6.ogg
+
+**CC0-1.0, by igroglaz**, https://freesound.org
+
+- x_enchanting_wood_hit.1.ogg
+- x_enchanting_wood_hit.2.ogg
+- x_enchanting_wood_hit.3.ogg
+- x_enchanting_wood_hit.4.ogg
+- x_enchanting_wood_hit.5.ogg
+- x_enchanting_wood_hit.6.ogg
+
+**CC-BY-4.0, by RICHERlandTV**, https://freesound.org
+
+- x_enchanting_wood_place.1.ogg
+- x_enchanting_wood_place.2.ogg
+- x_enchanting_wood_place.3.ogg
+
+**CC-BY-4.0, by tim.kahn**, https://freesound.org/people/tim.kahn/sounds/35829/
+
+- x_enchanting_disenchant.ogg

README.md

@@ -183,80 +183,3 @@ end
 ### Code
 
 GNU Lesser General Public License v2.1 or later (see included LICENSE file)
-
-### Textures
-
-**CC-BY-SA-4.0, Pixel Perfection by XSSheep**, https://minecraft.curseforge.com/projects/pixel-perfection-freshly-updated
-
-- x_enchanting_symbol_1.png
-- x_enchanting_symbol_2.png
-- x_enchanting_symbol_3.png
-- x_enchanting_symbol_4.png
-- x_enchanting_symbol_5.png
-- x_enchanting_symbol_6.png
-- x_enchanting_symbol_7.png
-- x_enchanting_symbol_8.png
-- x_enchanting_symbol_9.png
-- x_enchanting_symbol_10.png
-- x_enchanting_symbol_11.png
-- x_enchanting_symbol_12.png
-- x_enchanting_symbol_13.png
-- x_enchanting_symbol_14.png
-- x_enchanting_symbol_15.png
-- x_enchanting_symbol_16.png
-- x_enchanting_symbol_17.png
-- x_enchanting_symbol_18.png
-- x_enchanting_symbol_19.png
-- x_enchanting_symbol_20.png
-- x_enchanting_symbol_21.png
-- x_enchanting_symbol_22.png
-- x_enchanting_symbol_23.png
-- x_enchanting_symbol_24.png
-- x_enchanting_symbol_25.png
-- x_enchanting_symbol_26.png
-
-**CC-BY-SA-4.0, by SaKeL**
-
-- x_enchanting_image_button_disabled.png
-- x_enchanting_image_button.png
-- x_enchanting_image_trade_1.png -- Derived from a texture by VanessaE (CC BY-SA 3.0)
-- x_enchanting_image_trade_2.png -- Derived from a texture by VanessaE (CC BY-SA 3.0)
-- x_enchanting_image_trade_3.png -- Derived from a texture by VanessaE (CC BY-SA 3.0)
-- x_enchanting_scroll_handles_mesh.png -- Derived from a textures by paramat (CC BY-SA 3.0) and TumeniNodes (CC BY-SA 3.0)
-- x_enchanting_scroll_mesh.png -- Derived from a texture TumeniNodes (CC BY-SA 3.0)
-- x_enchanting_scroll_particle.png
-- x_enchanting_table.png
-- x_enchanting_gui_slot_bg.png -- Derived from texture Pixel Perfection by XSSheep (CC-BY-SA-4.0)
-- x_enchanting_gui_cloth_bg.png -- Derived from texture Pixel Perfection by XSSheep (CC-BY-SA-4.0)
-- x_enchanting_gui_cloth_trade_bg.png -- Derived from texture Pixel Perfection by XSSheep (CC-BY-SA-4.0)
-- x_enchanting_gui_formbg.png -- Derived from texture Pixel Perfection by XSSheep (CC-BY-SA-4.0)
-- x_enchanting_gui_hb_bg.png -- Derived from texture Pixel Perfection by XSSheep (CC-BY-SA-4.0)
-
-### Models
-
-**CC-BY-SA-4.0, by SaKeL**
-
-- x_enchanting_scroll.b3d
-- x_enchanting_table.obj
-
-### Sounds
-
-**CC-BY-3.0, Kostas17**, https://freesound.org
-
-- x_enchanting_enchant.ogg
-
-**CC0-1.0, Zeinel**, https://freesound.org
-
-- x_enchanting_scroll.1.ogg
-- x_enchanting_scroll.2.ogg
-- x_enchanting_scroll.3.ogg
-- x_enchanting_scroll.4.ogg
-- x_enchanting_scroll.5.ogg
-- x_enchanting_scroll.6.ogg
-- x_enchanting_scroll.7.ogg
-- x_enchanting_scroll.8.ogg
-- x_enchanting_scroll.9.ogg
-
-## Installation
-
-see: https://wiki.minetest.net/Installing_Mods

api.lua

@@ -1,3 +1,4 @@
+---@diagnostic disable
 --[[
     X Enchanting. Adds Enchanting Mechanics and API.
     Copyright (C) 2023 SaKeL <juraj.vajda@gmail.com>
@@ -195,7 +196,8 @@ XEnchanting = {
             weight = 1,
             secondary = true,
             -- all applicable
-            groups = nil
+            groups = nil,
+            cursed = true
         },
         knockback = {
             name = S('Knockback'),
@@ -552,7 +554,6 @@ function XEnchanting.set_enchanted_tool(self, pos, itemstack, level, player_name
     stack_meta:set_int('is_enchanted', 1)
     stack_meta:set_string('x_enchanting', minetest.serialize(final_enchantments_meta))
 
-
     if tool_def and tool_def.inventory_image and tool_def.inventory_image ~= '' then
         stack_meta:set_string('inventory_image', tool_def.inventory_image .. '^((' .. tool_def.inventory_image .. '^[contrast:127:127)^[mask:x_enchanting_glint.png^[opacity:80)')
     end
@@ -875,12 +876,13 @@ local function get_list_bg(x, y)
     return out
 end
 
-local function get_formspec_bg(player_name)
+local function get_formspec_bg(player_name, bg_img)
+    local bg_image = bg_img and bg_img or 'x_enchanting_gui_formbg.png'
     local info = minetest.get_player_information(player_name)
-    local bg = 'background[5,5;1,1;x_enchanting_gui_formbg.png;true]'
+    local bg = 'background[5,5;1,1;' .. bg_image .. ';true]'
 
     if info.formspec_version > 1 then
-        bg = 'background9[5,5;1,1;x_enchanting_gui_formbg.png;true;10]'
+        bg = 'background9[5,5;1,1;' .. bg_image .. ';true;10]'
     end
 
     return bg
@@ -967,3 +969,77 @@ function XEnchanting.get_formspec(self, pos, player_name, data)
 
     return table.concat(formspec, '')
 end
+
+function XEnchanting.get_grindstone_formspec(self, pos, player_name, data)
+    local _data = data or {}
+    local spos = pos.x .. ',' .. pos.y .. ',' .. pos.z
+    local model = 'model[0,0;2,3;x_enchanting_grindstone;x_enchanting_grindstone.obj;x_enchanting_grindstone_mesh.png;0,0;true;false;]'
+
+    local formspec = {}
+    formspec[#formspec + 1] = 'size[8,9]'
+    formspec[#formspec + 1] = 'bgcolor[#080808BB;true]'
+    formspec[#formspec + 1] = 'listcolors[#FFFFFF00;#FFFFFF1A;#FFFFFF00;#30434C;#FFF]'
+    formspec[#formspec + 1] = get_formspec_bg(player_name)
+    formspec[#formspec + 1] = 'style_type[label;font=mono,bold]'
+    formspec[#formspec + 1] = 'style[slot_1,slot_2,slot_3;font=mono,bold;textcolor=#4D413A]'
+    formspec[#formspec + 1] = 'label[0, 0;' .. S('Disenchant') .. ']'
+    -- item
+    formspec[#formspec + 1] = 'list[nodemeta:' .. spos .. ';item;0.5, 2.5;1, 1;]'
+    formspec[#formspec + 1] = 'image[0.5, 2.5;1,1;x_enchanting_gui_cloth_bg.png]'
+    -- result
+    if _data.result_disabled then
+        formspec[#formspec + 1] = 'image[4.75, 1.25;1.5,1.5;x_enchanting_gui_cloth_bg_corssed.png]'
+    else
+        formspec[#formspec + 1] = 'list[nodemeta:' .. spos .. ';result;5, 1.5;1, 1;]'
+        formspec[#formspec + 1] = 'image[5, 1.5;1,1;x_enchanting_gui_cloth_bg.png]'
+    end
+
+    -- inventories
+    formspec[#formspec + 1] = 'list[current_player;main;0, 4.85;8, 1;]'
+    formspec[#formspec + 1] = 'list[current_player;main;0, 6.08;8, 3;8]'
+    formspec[#formspec + 1] = 'listring[nodemeta:' .. spos .. ';result]'
+    formspec[#formspec + 1] = 'listring[current_player;main]'
+    formspec[#formspec + 1] = 'listring[nodemeta:' .. spos .. ';item]'
+    formspec[#formspec + 1] = 'listring[current_player;main]'
+
+    formspec[#formspec + 1] = get_hotbar_bg(0, 4.85)
+    formspec[#formspec + 1] = get_list_bg(0, 6.08)
+    formspec[#formspec + 1] = model
+
+    return table.concat(formspec, '')
+end
+
+function XEnchanting.has_all_cursed_ench(self, itemstack)
+    if itemstack:is_empty() then
+        return false
+    end
+
+    local item_stack_meta = itemstack:get_meta()
+    local stack_enchantment_data = minetest.deserialize(item_stack_meta:get_string('x_enchanting')) or {}
+    local stack_enchantment_data_length = get_table_length(stack_enchantment_data)
+    local cursed_ench = 0
+
+    -- Get cursed enchantments
+    for id, value in pairs(stack_enchantment_data) do
+        local ench_def = self.enchantment_defs[id]
+
+        if ench_def.cursed then
+            cursed_ench = cursed_ench + 1
+        end
+    end
+
+    return cursed_ench == stack_enchantment_data_length
+end
+
+--
+-- Sounds
+--
+
+function XEnchanting.node_sound_wood_defaults(table)
+    table = table or {}
+    table.footstep = table.footstep or { name = 'x_enchanting_wood_footstep', gain = 0.15 }
+    table.dig = table.dig or { name = 'x_enchanting_wood_hit', gain = 0.5 }
+    table.dug = table.dug or { name = 'x_enchanting_wood_place', gain = 0.1 }
+    table.place = table.place or { name = 'x_enchanting_wood_place', gain = 0.15 }
+    return table
+end

grindstone.lua

@@ -0,0 +1,380 @@
+---@diagnostic disable
+--[[
+    X Enchanting. Adds Enchanting Mechanics and API.
+    Copyright (C) 2023 SaKeL <juraj.vajda@gmail.com>
+
+    This library is free software; you can redistribute it and/or
+    modify it under the terms of the GNU Lesser General Public
+    License as published by the Free Software Foundation; either
+    version 2.1 of the License, or (at your option) any later version.
+
+    This library is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+    Lesser General Public License for more details.
+
+    You should have received a copy of the GNU Lesser General Public
+    License along with this library; if not, write to juraj.vajda@gmail.com
+--]]
+
+local S = minetest.get_translator(minetest.get_current_modname())
+
+----
+--- Grindstone Node
+----
+
+minetest.register_node('x_enchanting:grindstone', {
+    description = S('Grindstone'),
+    short_description = S('Grindstone'),
+    drawtype = 'mesh',
+    mesh = 'x_enchanting_grindstone.obj',
+    tiles = { 'x_enchanting_grindstone_mesh.png' },
+    inventory_image = 'x_enchanting_grindstone_item.png',
+    use_texture_alpha = 'clip',
+    paramtype = 'light',
+    paramtype2 = 'facedir',
+    walkable = true,
+    wield_scale = { x = 2, y = 2, z = 2 },
+    selection_box = {
+        type = 'fixed',
+        fixed = { -1 / 2, -1 / 2, -1 / 2, 1 / 2, 1 / 2 - 1 / 16, 1 / 2 }
+    },
+    collision_box = {
+        type = 'fixed',
+        fixed = { -1 / 2, -1 / 2, -1 / 2, 1 / 2, 1 / 2 - 1 / 16, 1 / 2 }
+    },
+    sounds = XEnchanting.node_sound_wood_defaults(),
+    is_ground_content = false,
+    groups = { choppy = 2, oddly_breakable_by_hand = 2 },
+    stack_max = 1,
+    mod_origin = 'x_enchanting',
+    ---@param pos Vector
+    on_construct = function(pos)
+        local meta = minetest.get_meta(pos)
+        local inv = meta:get_inventory()
+
+        meta:set_string('infotext', S('Grindstone'))
+        meta:set_string('owner', '')
+        inv:set_size('item', 1)
+        inv:set_size('result', 1)
+    end,
+    ---@param pos Vector
+    ---@param placer ObjectRef | nil
+    ---@param itemstack ItemStack
+    ---@param pointed_thing PointedThingDef
+    ---@diagnostic disable-next-line: unused-local
+    after_place_node = function(pos, placer, itemstack, pointed_thing)
+        local meta = minetest.get_meta(pos)
+
+        if not placer then
+            return
+        end
+
+        local player_name = placer:get_player_name()
+
+        meta:set_string('owner', player_name)
+        meta:set_string('infotext', S('Grindstone') .. ' (' .. S('owned by') .. ' ' .. player_name .. ')')
+
+        local formspec = XEnchanting:get_grindstone_formspec(pos, player_name)
+        meta:set_string('formspec', formspec)
+    end,
+    ---@param pos Vector
+    ---@param node NodeDef
+    ---@param clicker ObjectRef
+    ---@param itemstack ItemStack
+    ---@param pointed_thing? PointedThingDef
+    ---@diagnostic disable-next-line: unused-local
+    on_rightclick = function(pos, node, clicker, itemstack, pointed_thing)
+        local meta = minetest.get_meta(pos)
+        local p_name = clicker:get_player_name()
+        local inv = meta:get_inventory()
+        local item_stack = inv:get_stack('item', 1)
+        local item_stack_meta = item_stack:get_meta()
+        local has_all_cursed_ench = XEnchanting:has_all_cursed_ench(item_stack)
+
+        if minetest.is_protected(pos, p_name) then
+            return itemstack
+        end
+
+        minetest.sound_play('everness_wood_hit', {
+            gain = 0.5,
+            pos = pos,
+            max_hear_distance = 10
+        }, true)
+
+        local formspec = XEnchanting:get_grindstone_formspec(pos, p_name, { result_disabled = has_all_cursed_ench })
+        meta:set_string('formspec', formspec)
+
+        return itemstack
+    end,
+    ---@param pos Vector
+    ---@param intensity? number
+    ---@return table | nil
+    ---@diagnostic disable-next-line: unused-local
+    on_blast = function(pos, intensity)
+        if minetest.is_protected(pos, '') then
+            return
+        end
+
+        local drops = {}
+        local inv = minetest.get_meta(pos):get_inventory()
+        local stack_item = inv:get_stack('item', 1)
+
+        if not stack_item:is_empty() then
+            drops[#drops + 1] = stack_item:to_table()
+        end
+
+        drops[#drops + 1] = 'x_enchanting:grindstone'
+        minetest.remove_node(pos)
+
+        return drops
+    end,
+    ---@param pos Vector
+    ---@param player? ObjectRef
+    can_dig = function(pos, player)
+        if not player then
+            return false
+        end
+
+        local inv = minetest.get_meta(pos):get_inventory()
+
+        return inv:is_empty('item')
+            and inv:is_empty('result')
+            and not minetest.is_protected(pos, player:get_player_name())
+    end,
+    ---@diagnostic disable-next-line: unused-local
+    on_rotate = function(pos, node, user, mode, new_param2)
+        return false
+    end,
+    ---@param pos Vector
+    ---@param listname string
+    ---@param index number
+    ---@param stack ItemStack
+    ---@param player ObjectRef
+    ---@diagnostic disable-next-line: unused-local
+    allow_metadata_inventory_put = function(pos, listname, index, stack, player)
+        local st_meta = stack:get_meta()
+        local is_enchanted = st_meta:get_int('is_enchanted')
+
+        if listname == 'item' and is_enchanted == 1 then
+            return stack:get_count()
+        end
+
+        return 0
+    end,
+    ---@param pos Vector
+    ---@param listname string
+    ---@param index number
+    ---@param stack ItemStack
+    ---@param player ObjectRef
+    ---@diagnostic disable-next-line: unused-local
+    allow_metadata_inventory_take = function(pos, listname, index, stack, player)
+        return stack:get_count()
+    end,
+    ---@param pos Vector
+    ---@param from_list string
+    ---@param from_index number
+    ---@param to_list string
+    ---@param to_index number
+    ---@param count number
+    ---@param player ObjectRef
+    ---@diagnostic disable-next-line: unused-local
+    allow_metadata_inventory_move = function(pos, from_list, from_index, to_list, to_index, count, player)
+        return 0
+    end,
+    ---@param pos Vector
+    ---@param listname string
+    ---@param index number
+    ---@param stack ItemStack
+    ---@param player ObjectRef
+    ---@diagnostic disable-next-line: unused-local
+    on_metadata_inventory_put = function(pos, listname, index, stack, player)
+        --
+        -- Create new itemstack with removed enchantments (excl. curses) and populate the result slot with this new item
+        --
+        local meta = minetest.get_meta(pos)
+        local p_name = player:get_player_name()
+        local inv = meta:get_inventory()
+        local item_stack = inv:get_stack('item', 1)
+        local item_stack_meta = item_stack:get_meta()
+        local is_enchanted = item_stack_meta:get_int('is_enchanted')
+        local stack_enchantment_data = minetest.deserialize(item_stack_meta:get_string('x_enchanting')) or {}
+        local has_all_cursed_ench = XEnchanting:has_all_cursed_ench(item_stack)
+
+        if not inv:is_empty('item') and is_enchanted == 1 and not has_all_cursed_ench then
+            -- Discenchanted item
+            local has_curse = false
+            local current_enchantments = {}
+
+            for id, value in pairs(stack_enchantment_data) do
+                -- Remove enchantment meta data (excl. cursed)
+                local ench_def = XEnchanting.enchantment_defs[id]
+
+                if not ench_def.cursed then
+                    item_stack_meta:set_float('is_' .. id, 0)
+                    stack_enchantment_data[id] = nil
+                else
+                    has_curse = true
+                end
+
+                -- Get descriptions
+                if stack_enchantment_data[id] then
+                    local level
+
+                    -- Find level
+                    for i, v in ipairs(ench_def.level_def) do
+                        if v == value.value then
+                            level = i
+                            break
+                        end
+                    end
+
+                    table.insert(current_enchantments, {
+                        id = id,
+                        value = value.value,
+                        level = level,
+                        secondary = ench_def.secondary,
+                        incompatible = ench_def.incompatible
+                    })
+                end
+            end
+
+            if not has_curse then
+                -- Reset meta data if not cursed
+                item_stack_meta:set_string('inventory_image', '')
+                item_stack_meta:set_string('inventory_overlay', '')
+                item_stack_meta:set_string('wield_image', '')
+                item_stack_meta:set_string('wield_overlay', '')
+                item_stack_meta:set_string('description', '')
+                item_stack_meta:set_string('short_description', '')
+                item_stack_meta:set_int('is_enchanted', 0)
+            end
+
+            local descriptions = XEnchanting:get_enchanted_descriptions(current_enchantments)
+
+            -- Upgrade description with remaining enchantments
+            if #current_enchantments > 0 then
+                local item_stack_def = minetest.registered_tools[item_stack:get_name()]
+                item_stack_meta:set_string('description', (item_stack_def and item_stack_def.description or '') .. '\n' .. descriptions.enchantments_desc)
+            end
+
+            item_stack_meta:set_tool_capabilities(nil)
+            item_stack_meta:set_string('x_enchanting', minetest.serialize(stack_enchantment_data))
+
+            inv:set_stack('result', 1, item_stack)
+        end
+
+        local formspec = XEnchanting:get_grindstone_formspec(pos, p_name, { result_disabled = has_all_cursed_ench })
+
+        meta:set_string('formspec', formspec)
+    end,
+    ---@param pos Vector
+    ---@param listname string
+    ---@param index number
+    ---@param stack ItemStack
+    ---@param player ObjectRef
+    ---@diagnostic disable-next-line: unused-local
+    on_metadata_inventory_take = function(pos, listname, index, stack, player)
+        local meta = minetest.get_meta(pos)
+        local p_name = player:get_player_name()
+        local inv = meta:get_inventory()
+        local result_stack = inv:get_stack('result', 1)
+        local item_stack = inv:get_stack('item', 1)
+        local item_stack_meta = item_stack:get_meta()
+        local is_enchanted = item_stack_meta:get_int('is_enchanted')
+        local has_all_cursed_ench = XEnchanting:has_all_cursed_ench(item_stack)
+        local stack_enchantment_data = minetest.deserialize(item_stack_meta:get_string('x_enchanting')) or {}
+        local result_payment_stack = ItemStack({ name = 'default:mese_crystal_fragment' })
+
+        if item_stack:is_empty() or has_all_cursed_ench then
+            -- Remove result item
+            inv:remove_item('result', result_stack)
+        end
+
+        -- Collect total result
+        local result_total = 0
+
+        if result_total == 0 then
+            -- get payback result (excl. cursed enchantments) from the original item
+            for id, value in pairs(stack_enchantment_data) do
+                local ench_def = XEnchanting.enchantment_defs[id]
+                local lvl_index
+
+                if not ench_def.cursed then
+                    -- find level index
+                    for i, v in ipairs(ench_def.level_def) do
+                        if v == stack_enchantment_data[id].value then
+                            lvl_index = i
+                        end
+                    end
+                end
+
+                if lvl_index then
+                    local final_level_range = ench_def.final_level_range[lvl_index]
+                    local range_max = final_level_range[1] + final_level_range[2]
+                    local range_min = math.floor(range_max / 2)
+                    local result = math.random(range_min, range_max)
+
+                    result_total = result_total + result
+                end
+            end
+
+            if result_total > result_payment_stack:get_stack_max() then
+                result_total = result_payment_stack:get_stack_max()
+            elseif result_total == 0 then
+                result_total = 1
+            end
+        end
+
+        result_payment_stack:set_count(result_total)
+
+        if listname == 'result' and result_stack:is_empty() then
+            -- Drop payment result
+            inv:set_stack('item', 1, ItemStack(''))
+            minetest.item_drop(result_payment_stack, player, player:get_pos())
+
+            minetest.sound_play('x_enchanting_disenchant', {
+                gain = 0.3,
+                pos = pos,
+                max_hear_distance = 10
+            }, true)
+
+            -- particles
+            local particlespawner_def = {
+                amount = 50,
+                time = 0.5,
+                minpos = { x = pos.x - 0.5, y = pos.y + 0.5, z = pos.z - 0.5 },
+                maxpos = { x = pos.x + 0.5, y = pos.y + 0.5, z = pos.z + 0.5 },
+                minvel = { x = -1.5, y = -0.5, z = -1.5 },
+                maxvel = { x = 1.5, y = -1.5, z = 1.5 },
+                minacc = { x = -3.5, y = -6.5, z = -3.5 },
+                maxacc = { x = 5.5, y = -7.5, z = 5.5 },
+                minexptime = 0.5,
+                maxexptime = 1,
+                minsize = 0.5,
+                maxsize = 1,
+                texture = 'x_enchanting_scroll_particle.png^[colorize:#FFE5C2:256',
+                glow = 1
+            }
+
+            minetest.add_particlespawner(particlespawner_def)
+        end
+
+
+        local formspec = XEnchanting:get_grindstone_formspec(pos, p_name)
+
+        meta:set_string('formspec', formspec)
+    end
+})
+
+----
+-- Recipe
+---
+
+minetest.register_craft({
+    output = 'x_enchanting:grindstone',
+    recipe = {
+        { 'group:stick', 'stairs:slab_stone', 'group:stick' },
+        { 'group:wood', '', 'group:wood' }
+    }
+})

init.lua

@@ -21,6 +21,7 @@ local mod_start_time = minetest.get_us_time()
 
 dofile(path .. '/api.lua')
 dofile(path .. '/table.lua')
+dofile(path .. '/grindstone.lua')
 
 ---Check if string X starts with string Y
 ---@param str string

mod.conf

@@ -1,6 +1,6 @@
 name = x_enchanting
 description = Adds Enchanting Mechanics and API.
 depends =
-optional_depends = xdecor, item_drop
+optional_depends = xdecor, item_drop, stairs
 supported_games = minetest_game
 min_minetest_version = 5.4

models/x_enchanting_grindstone.obj

@@ -0,0 +1,928 @@
+# Blender v2.83.20 OBJ File: 'x_enchanting_grindstone.blend'
+# www.blender.org
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+f 21/205/1 101/360/1 87/422/1
+f 101/360/1 148/359/1 105/423/1
+f 87/422/1 101/360/1 105/423/1
+f 87/422/1 29/203/1 21/205/1
+f 105/208/4 148/424/4 156/206/4
+f 148/424/4 147/134/4 156/206/4
+f 147/134/4 155/425/4 156/206/4
+f 29/211/6 87/426/6 151/427/6
+f 48/209/6 154/428/6 114/210/6
+f 29/211/6 151/427/6 48/209/6

table.lua

@@ -1,3 +1,4 @@
+---@diagnostic disable
 --[[
     X Enchanting. Adds Enchanting Mechanics and API.
     Copyright (C) 2023 SaKeL <juraj.vajda@gmail.com>
@@ -16,9 +17,6 @@
     License along with this library; if not, write to juraj.vajda@gmail.com
 --]]
 
----@diagnostic disable-next-line
-screwdriver = minetest.global_exists('screwdriver') and screwdriver --[[@as MtgScrewdriver]]
-
 local S = minetest.get_translator(minetest.get_current_modname())
 
 ----