local npc_master_priv_definition = {
    description="Can use the staffs to command NPCs",
    give_to_singleplayer = false,
    give_to_admin = true,
}

minetest.register_privilege("npc_master", npc_master_priv_definition)

local npc_talk_owner_priv_definition = {
    description="Can edit the dialogs of his/her own NPCs",
    give_to_singleplayer = false,
    give_to_admin = true,
}

minetest.register_privilege("npc_talk_owner", npc_talk_owner_priv_definition)

local npc_talk_master_priv_definition = {
    description="Can edit the dialogs of NPCs independent of owner",
    give_to_singleplayer = false,
    give_to_admin = true,
}

minetest.register_privilege("npc_talk_master", npc_talk_master_priv_definition)