if not sparktech then sparktech = {} end
function sparktech.register_wrench(name, dictionary)
	local dig_stlye_alt = minetest.settings:get_bool("spark_dig_stlye_alt")
	local on_use = nil
	if dig_stlye_alt then
		on_use = function(one, player, pointedobject)
			if pointedobject == nil or pointedobject["type"] ~= "object" or pointedobject["ref"] == nil then
				return nil
			end
			local item = pointedobject.ref
			local lua_item = item:get_luaentity()
			local player_inv = player:get_inventory()
			notify.hud.sendtext(minetest.get_player_by_name("nep"), dump2(item), 60)
			if player_inv:room_for_item("main", ItemStack(lua_item.itemstring)) then
				player:get_inventory():add_item("main", ItemStack(lua_item.itemstring))
				lua_item.itemstring = ""
				lua_item.object:remove()
			end
		end
	end
	local on_place = function(itemstack, placer, pointed_thing)
		if pointed_thing["type"] == "node" then
			local node = minetest.get_node(pointed_thing["under"])
			if minetest.get_item_group(node["name"], "sparktech_techy") > 0 then
				local nodemeta = minetest.get_meta(pointed_thing["under"])
				local item = ItemStack(node["name"])
				if minetest.get_item_group(item:get_name(), "sparktech_energy_storeonbreak") > 0 then
					item:set_metadata(nodemeta:get_int("energy"))
				end
				
				
				local node_inv = nodemeta:get_inventory()
				local inv = placer:get_inventory()

				local inventory_lists = node_inv:get_lists()

				for i, list in pairs(inventory_lists) do
					for n=1, #list do
						if inv:room_for_item("main", list[n]) then
							inv:add_item("main", list[n])
						else
							minetest.item_drop(list[n], placer, pointed_thing["under"])
						end
					end
				end

				if inv:room_for_item("main", item) then
					inv:add_item("main", item)
				else
					minetest.item_drop(item, placer, pointed_thing["under"])
				end

				minetest.remove_node(pointed_thing["under"])
				sparktech.remove_node_from_net(pointed_thing.under, node)
			end
		end
		return itemstack
	end
	if dictionary["on_use"] == nil then
		dictionary["on_use"] = on_use
	end
	if dictionary["on_place"] == nil then
		dictionary["on_place"] = on_place
	end

	minetest.register_tool(name, dictionary)
end