write something there

mods/everness/privileges.lua

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+--[[
+    Everness. Never ending discovery in Everness mapgen.
+    Copyright (C) 2024 SaKeL
+
+    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.
+
+--]]
+
+local function update_sfinv(name)
+    minetest.after(0, function()
+        local player = minetest.get_player_by_name(name)
+
+        if player then
+            if sfinv.get_page(player) == 'everness:encyclopedia' then
+                sfinv.set_page(player, sfinv.get_homepage_name(player))
+            else
+                sfinv.set_player_inventory_formspec(player)
+            end
+        end
+    end)
+end
+
+local function update_ui(name)
+    minetest.after(0, function()
+        local player = minetest.get_player_by_name(name)
+
+        if player then
+            if unified_inventory.current_page[name] == 'everness:encyclopedia' then
+                unified_inventory.current_page[name] = 'craft'
+            end
+
+            unified_inventory.set_inventory_formspec(player, unified_inventory.current_page[name])
+        end
+    end)
+end
+
+minetest.register_privilege('everness_encyclopedia', {
+    -- Privilege description
+    description = 'Collection of registered items and functions with some information about them. Used for testing not for gameplay. Works only with SFINV!',
+
+    -- Whether to grant the privilege to singleplayer.
+    give_to_singleplayer = false,
+
+    -- Whether to grant the privilege to the server admin.
+    -- Uses value of 'give_to_singleplayer' by default.
+    give_to_admin = false,
+
+    -- Called when given to player 'name' by 'granter_name'.
+    -- 'granter_name' will be nil if the priv was granted by a mod.
+    on_grant = function(name, granter_name)
+        if minetest.get_modpath('sfinv') and sfinv.enabled then
+            update_sfinv(name)
+        elseif minetest.get_modpath('unified_inventory') then
+            update_ui(name)
+        else
+            minetest.chat_send_player(name, 'Compatible inventory not found. Everness encyclopedia will not be shown.')
+        end
+    end,
+
+    -- Called when taken from player 'name' by 'revoker_name'.
+    -- 'revoker_name' will be nil if the priv was revoked by a mod.
+
+    -- Note that the above two callbacks will be called twice if a player is
+    -- responsible, once with the player name, and then with a nil player
+    -- name.
+    -- Return true in the above callbacks to stop register_on_priv_grant or
+    -- revoke being called.
+    on_revoke = function(name, revoker_name)
+        if minetest.get_modpath('sfinv') and sfinv.enabled then
+            update_sfinv(name)
+        elseif minetest.get_modpath('unified_inventory') then
+            update_ui(name)
+        else
+            minetest.chat_send_player(name, 'Compatible inventory not found. Everness encyclopedia will not be shown.')
+        end
+    end,
+})