Player Joiner

local g = Instance.new("ScreenGui", game.CoreGui)
local f = Instance.new("Frame", g)
f.Size = UDim2.new(0, 260, 0, 150)
f.Position = UDim2.new(0.5, -130, 0.4, 0)
f.Active = true
f.Draggable = true
f.BackgroundColor3 = Color3.fromRGB(30,30,30)

local t = Instance.new("TextLabel", f)
t.Size = UDim2.new(1,0,0,30)
t.BackgroundTransparency = 1
t.Text = "Join Player (Username)"
t.Font = Enum.Font.GothamBold
t.TextScaled = true
t.TextColor3 = Color3.fromRGB(255,255,255)

local box = Instance.new("TextBox", f)
box.Size = UDim2.new(1,-20,0,35)
box.Position = UDim2.new(0,10,0,40)
box.PlaceholderText = "Enter Username..."
box.Font = Enum.Font.Gotham
box.Text = ""
box.TextScaled = true
box.BackgroundColor3 = Color3.fromRGB(50,50,50)
box.TextColor3 = Color3.fromRGB(255,255,255)

local btn = Instance.new("TextButton", f)
btn.Size = UDim2.new(1,-20,0,40)
btn.Position = UDim2.new(0,10,0,90)
btn.Text = "JOIN"
btn.Font = Enum.Font.GothamBold
btn.TextScaled = true
btn.BackgroundColor3 = Color3.fromRGB(0,170,255)
btn.TextColor3 = Color3.fromRGB(255,255,255)

-- SERVICES
local HttpService = game:GetService("HttpService")
local TeleportService = game:GetService("TeleportService")
local Players = game:GetService("Players")
local placeId = game.PlaceId

-- Convert Username → UserId
local function UsernameToID(name)
    local r = game:HttpGet("https://api.roblox.com/users/get-by-username?username="..name)
    local data = HttpService:JSONDecode(r)
    if data and data.Id then return data.Id end
    return nil
end


local function GetPublicServers()
    local servers = {}
    local cursor = ""

    repeat
        local url = "https://games.roblox.com/v1/games/"..placeId.."/servers/Public?limit=100&cursor="..cursor
        local response = game:HttpGet(url)
        local data = HttpService:JSONDecode(response)

        for _,sv in pairs(data.data) do
            table.insert(servers, sv)
        end

        cursor = data.nextPageCursor or ""
    until cursor == "" or cursor == nil

    return servers
end


local function Join(username)
    btn.Text = "Checking..."
    btn.BackgroundColor3 = Color3.fromRGB(200,150,0)

    local userId = UsernameToID(username)
    if not userId then
        btn.Text = "Invalid Username"
        btn.BackgroundColor3 = Color3.fromRGB(255,60,60)
        task.wait(2)
        btn.Text = "JOIN"
        btn.BackgroundColor3 = Color3.fromRGB(0,170,255)
        return
    end

    local servers = GetPublicServers()
    for _,sv in pairs(servers) do
        for _,plr in pairs(sv.playerIds) do
            if plr == userId then
                btn.Text = "Joining..."
                btn.BackgroundColor3 = Color3.fromRGB(0,200,50)
                TeleportService:TeleportToPlaceInstance(placeId, sv.id, Players.LocalPlayer)
                return
            end
        end
    end

    btn.Text = "Not Found/Public"
    btn.BackgroundColor3 = Color3.fromRGB(255,60,60)
    task.wait(2)
    btn.Text = "JOIN"
    btn.BackgroundColor3 = Color3.fromRGB(0,170,255)
end

btn.MouseButton1Click:Connect(function()
    if box.Text ~= "" then
        Join(box.Text)
    end
end)

print("working ")