minetest.register_craftitem("circuits:rotator", {
    description = "The rotator",
    inventory_image = "rotator.png",
    on_place = function(itemstack, user, pointed_thing)
        local node = minetest.get_node(pointed_thing.under)
        if not string.startsWith(node.name,"circuits:cable_")
        then return itemstack
        end

        local new = circuits.rotateCable(string.without(node.name,"circuits:cable_"),1)
        minetest.swap_node(pointed_thing.under, {name = "circuits:cable_" .. new})
        return itemstack
    end
})
minetest.register_craftitem("circuits:linker", {
    description = "The linker",
    inventory_image = "linker.png",
    on_place = function(itemstack, user, pointed_thing)
        local node = minetest.get_node(pointed_thing.under)
        if not string.startsWith(node.name,"circuits:cable_")
        then return itemstack
        end

        local index = circuits.lookingAtNbIndex(user,pointed_thing.under)

        -- We check if we clicked the last selected node
        local meta = minetest.get_meta(pointed_thing.under)
        if meta:get_int("circuits:last_selected_nb") ~= 0
        then
            -- We connect
            local firsti = meta:get_int("circuits:last_selected_nb")
            local new = circuits.connectInCable(string.without(node.name,"circuits:cable_"),firsti,index)
            minetest.swap_node(pointed_thing.under, {name = "circuits:cable_" .. new})

            -- We destroy the saved selected nb
            meta:set_int("circuits:last_selected_nb",0)
        else
            -- We save the selected nb
            meta:set_int("circuits:last_selected_nb",index)
        end
        return itemstack
    end
})
minetest.register_craftitem("circuits:unlinker", {
    description = "The unlinker",
    inventory_image = "unlinker.png",
    on_place = function(itemstack, user, pointed_thing)
        local node = minetest.get_node(pointed_thing.under)
        if not string.startsWith(node.name,"circuits:cable_")
        then return itemstack
        end

        local index = circuits.lookingAtNbIndex(user,pointed_thing.under)

        local new = circuits.disconnectInCable(string.without(node.name,"circuits:cable_"),index)
        minetest.swap_node(pointed_thing.under, {name = "circuits:cable_" .. new})
        
        return itemstack
    end
})