technic/technic/helpers.lua
2014-07-03 17:40:06 +02:00

46 lines
1.3 KiB
Lua

minetest.swap_node = minetest.swap_node or function(pos, node)
local oldmeta = minetest.get_meta(pos):to_table()
minetest.set_node(pos, node)
minetest.get_meta(pos):from_table(oldmeta)
end
-- Only changes name, keeps other params
function technic.swap_node(pos, name)
local node = minetest.get_node(pos)
if node.name ~= name then
node.name = name
minetest.swap_node(pos, node)
end
return node.name
end
-- Fully charge RE chargeable item.
-- Must be defined early to reference in item definitions.
function technic.refill_RE_charge(stack)
local max_charge = technic.power_tools[stack:get_name()]
if not max_charge then return stack end
technic.set_RE_wear(stack, max_charge, max_charge)
local meta = minetest.deserialize(stack:get_metadata()) or {}
meta.charge = max_charge
stack:set_metadata(minetest.serialize(meta))
return stack
end
--------------------------------------------------------------------------------
local function resolve_name(function_name)
local a = _G
for key in string.gmatch(function_name, "([^%.]+)(%.?)") do
if a[key] then
a = a[key]
else
return nil
end
end
return a
end
function technic.function_exists(function_name)
return type(resolve_name(function_name)) == 'function'
end
--------------------------------------------------------------------------------