89 lines
2.4 KiB
Lua
89 lines
2.4 KiB
Lua
-- Lists all items which are probably useless
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--[[not a node, not a weapon, not a mining tool, not used in any crafting recipe.
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This checker is not perfect and tends to have a couple of false-positives.]]
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local items_in_craft = {}
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for k,v in pairs(minetest.registered_items) do
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local recps = minetest.get_all_craft_recipes(k)
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if recps ~= nil then
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for r=1,#recps do
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local recp = recps[r]
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if recp ~= nil and recp.items ~= nil then
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local table_length
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if recp.width == 0 then
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table_length = #recp.items
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else
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table_length = math.pow(recp.width, 2)
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end
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for i=1, table_length do
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if recp.items[i] ~= nil then
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items_in_craft[recp.items[i]] = true
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end
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end
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end
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end
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end
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end
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local check = function(name, def)
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-- Is it used in ANY crafting recipe?
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if items_in_craft[name] == true then
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return
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end
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-- Is it the hand?
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if name == "" then
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return
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end
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-- Is it a tool?
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if def.tool_capabilities ~= nil then
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-- Mining tool?
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if def.tool_capabilities.groupcaps ~= nil then
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for k, v in pairs(def.tool_capabilities.groupcaps) do
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return
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end
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end
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-- Weapon?
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if def.tool_capabilities.damage_groups ~= nil then
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for k, v in pairs(def.tool_capabilities.damage_groups) do
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return
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end
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end
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end
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-- This helper function checks whether a function is custom-defined by a mod (true) or comes from Minetest or builtin (false)
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local is_custom = function(func)
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if func == nil then
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return false
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end
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if type(func) ~= "function" then
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return true
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end
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local source = debug.getinfo(func).source
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-- First character == "@" means it comes from a Lua script
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if string.sub(source, 1, 1) == "@" then
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-- Path: /builtin/game/init.lua
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-- TODO: Test this on Windows, Mac OS, …
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local builtin_path = DIR_DELIM .. "builtin" .. DIR_DELIM .. "game" .. DIR_DELIM .. "item.lua"
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return not (string.sub(source, -string.len(builtin_path), -1) == builtin_path)
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else
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return false
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end
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end
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-- Are there any callback functions defined?
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if def.on_use ~= nil or def.after_use ~= nil or is_custom(def.on_secondary_use) or is_custom(def.on_place) or is_custom(def.on_drop) then
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return
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end
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-- This item survived all checks, so we print it. It's probably (!) useless.
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print(name)
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end
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for name, def in pairs(minetest.registered_tools) do
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check(name, def)
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end
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for name, def in pairs(minetest.registered_craftitems) do
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check(name, def)
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end
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