From 574ed6a363328dcfa477b1779f3d9491322d96b7 Mon Sep 17 00:00:00 2001
From: ShadowNinja <shadowninja@minetest.net>
Date: Mon, 13 Jan 2014 19:28:55 -0500
Subject: [PATCH] Add minetest.override_item
---
builtin/misc_register.lua | 18 ++++++++++++++++++
doc/lua_api.txt | 4 ++++
2 files changed, 22 insertions(+)
diff --git a/builtin/misc_register.lua b/builtin/misc_register.lua
index 6c50ff02e..d00945dbd 100644
--- a/builtin/misc_register.lua
+++ b/builtin/misc_register.lua
@@ -315,6 +315,24 @@ minetest.register_item(":", {
})
+function minetest.override_item(name, redefinition)
+ if redefinition.name ~= nil then
+ error("Attemt to redefine name of "..name.." to "..dump(redefinition.name), 2)
+ end
+ if redefinition.type ~= nil then
+ error("Attemt to redefine type of "..name.." to "..dump(redefinition.type), 2)
+ end
+ local item = minetest.registered_items[name]
+ if not item then
+ error("Attemt to override non-existent item "..name, 2)
+ end
+ for k, v in pairs(redefinition) do
+ rawset(item, k, v)
+ end
+ register_item_raw(item)
+end
+
+
function minetest.run_callbacks(callbacks, mode, ...)
assert(type(callbacks) == "table")
local cb_len = #callbacks
diff --git a/doc/lua_api.txt b/doc/lua_api.txt
index 8bd83995e..40dace9da 100644
--- a/doc/lua_api.txt
+++ b/doc/lua_api.txt
@@ -1189,6 +1189,10 @@ minetest.register_alias(name, convert_to)
minetest.register_craft(recipe)
minetest.register_ore(ore definition)
minetest.register_decoration(decoration definition)
+minetest.override_item(name, redefinition)
+^ Overrides fields of an item registered with register_node/tool/craftitem.
+^ Note: Item must already be defined, (opt)depend on the mod defining it.
+^ Example: minetest.override_item("default:mese", {light_source=LIGHT_MAX})
Global callback registration functions: (Call these only at load time)
minetest.register_globalstep(func(dtime))