blockgame/mods/bg_api/wrappers.lua

local function create_plain_wrapper (function_name)
	local wrapper = function (...)
		--[[
		local args = {...}

		-- labels will be used later, probably.
		local label = #args > 1 and args[1] or "unlabeled"
		local callback = #args > 1 and args[2] or args[1]

		minetest[function_name](callback)
		]]--
		minetest[function_name](...)
	end

	blockgame[function_name] = wrapper
end

for name in pairs({
	register_abm = true,
	register_lbm = true,
	register_on_joinplayer = true,
	register_item = true,
	register_on_placenode = true,
	register_on_dignode = true,
	register_on_punchnode = true,
	register_globalstep = true,
}) do
	create_plain_wrapper(name)
end

local function capitalize (str)
	return string.upper(string.sub(str, 1, 1)) .. string.sub(str, 2)
end

local events = blockgame.events.namespace("api")

function blockgame.register_node (fullname, def)
	-- make sure the right names are used in the right contexts, by manually extracting them here.
	-- this makes `blockgame.register_node` more flexible/reliable.
	local modname
	local basename

	local colon_pos = string.find(fullname, ":")
	if colon_pos then
		modname = string.sub(fullname, 1, colon_pos - 1)
		basename = string.sub(fullname, colon_pos + 1)
	else
		modname = minetest.get_current_modname()
		basename = fullname
		fullname = modname .. ":" .. basename
	end

	def.description = def.description or capitalize(basename)
	def.tiles = def.tiles or {
		modname .. "_" .. basename .. ".png",
	}

	events.broadcast("before_register_node", {
		name = fullname,
		def = def,
		mod = modname,
		basename = basename
	})

	minetest.register_node(fullname, def)

	events.broadcast("after_register_node", {
		name = fullname,
		def = def,
		mod = modname,
		basename = basename
	})
end