Improved Basic Protect Gui

--[[
    Improved Basic Protect Gui by darraghd493

    An improved variant of my Basic Protect Gui @ https://pastebin.com/QkvCpyKq
]]

local CoreGui = game:GetService("CoreGui")

local function randomString(len)
    local charset = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789"
    local result = {}
    for i = 1, len do
        result[i] = charset:sub(math.random(1, #charset), math.random(1, #charset))
    end
    return table.concat(result)
end

local protectgui = protect_gui or protectgui
local gethui = get_hidden_gui or gethui

local protectedInstances = {}
local active = false

local function init()
    if active then return end
    active = true

    local old
    old = hookmetamethod(game, "__namecall", function(...)
        local args = {...}
        if not checkcaller() and args[1] == game and getnamecallmethod() == "FindFirstChild" and args[3] == true then
            for _, v in ipairs(protectedInstances) do
                if v.Name == args[2] then
                    return nil
                end
            end
        end
        return old(...)
    end)
end

local function protect(gui)
    gui.Name = randomString(32)

    if protectgui then
        protectgui(gui)
        gui.Parent = CoreGui
        return
    end

    if gethui then
        gui.Parent = gethui()
        return
    end

    init()
    table.insert(protectedInstances, gui)
    for _, v in pairs(gui:GetDescendants()) do
        table.insert(protectedInstances, v)
    end

    gui.Parent = CoreGui
    gui.DescendantAdded:Connect(function(v)
        table.insert(protectedInstances, v)
    end)
end

return protect