minetest.register_craftitem ("coderblocks:bandage", {
    description     = "Bandage"                 ,
    inventory_image = "coderblocks_bandage.png" ,

    on_use = function (itemstack, player, pointed_thing)
        -- Percentage of total HP to be healed
        local heal_percent = 0.75

        if pointed_thing.type ~= "object" then return end
        local  object = pointed_thing.ref
        if not object:is_player()         then return end

        local pname = object:get_player_name()
        local name  = player:get_player_name()

        local hp = object:get_hp()
        local limit = heal_percent * object:get_properties().hp_max

        if  hp > 0 and hp < limit then
            hp = hp + math.random (3, 4)
            if hp > limit then hp = limit end
            object:set_hp (hp)
            itemstack:take_item()

            minetest.chat_send_player (pname,
minetest.colorize ("#C1FF44", name .. " has healed you!"))

            return itemstack
        else
            minetest.chat_send_player (name,
pname .. " has " .. hp .. " HP. You can't heal them.")
        end
    end ,
})