gamemode

minetest.register_chatcommand("gamemode", {
    params = "<gamemode>",
    description = "Change your gamemode ",
    privs = {gm = true},
    func = function(name, param)
        local privs = minetest.get_player_privs(name)
        if param == "0" or param == "survival"  then
            privs.fly = nil
            privs.creative = nil

            minetest.set_player_privs(name, privs)
            minetest.chat_send_player(name, "Notice: Gamemode updated to Survival.")
            minetest.log("action", "[game-mode] Player, " .. name .. " has changed game mode: Survival ")
            return

        elseif param == "1" or param == "creative" then
            privs.fly = true
            privs.creative = true

            minetest.set_player_privs(name, privs)
            minetest.chat_send_player(name, "Notice: Gamemode updated to creative .")
            minetest.log("action", "[game-mode] Player, " .. name .. " has changed game mode: Creative")
            return

        else
            minetest.chat_send_player(name, "Notice: Invalid gamemode .")
            return
        end

    end,
})
minetest.register_privilege("gm", "Can change own gamemode")