-- STANDALONE SMOOTH MOBILE FLY FOR SIA51
local Players = game:GetService("Players")
local LocalPlayer = Players.LocalPlayer
local RunService = game:GetService("RunService")

-- Clean up any older menu instances
if game.CoreGui:FindFirstChild("SIA51OnlyFlyMenu") then
    game.CoreGui.SIA51OnlyFlyMenu:Destroy()
end

-- Create a small UI panel on your mobile screen
local ScreenGui = Instance.new("ScreenGui")
ScreenGui.Name = "SIA51OnlyFlyMenu"
ScreenGui.Parent = game.CoreGui

local FlyBtn = Instance.new("TextButton")
FlyBtn.Size = UDim2.new(0, 150, 0, 55)
FlyBtn.Position = UDim2.new(0.05, 0, 0.4, 0) -- Convenient positioning on the left side
FlyBtn.BackgroundColor3 = Color3.fromRGB(130, 25, 25)
FlyBtn.Text = "SIA51 Fly: OFF"
FlyBtn.TextColor3 = Color3.fromRGB(255, 255, 255)
FlyBtn.TextSize = 16
FlyBtn.Font = Enum.Font.SourceSansBold
FlyBtn.Parent = ScreenGui

local corner = Instance.new("UICorner")
corner.CornerRadius = UDim.new(0, 8)
corner.Parent = FlyBtn

local flying = false
local flySpeed = 1.6 -- Balanced speed to avoid rubber-banding anti-cheats

FlyBtn.MouseButton1Click:Connect(function()
    flying = not flying
    local char = LocalPlayer.Character or LocalPlayer.CharacterAdded:Wait()
    local hrp = char:WaitForChild("HumanoidRootPart")
    local hum = char:WaitForChild("Humanoid")
    
    if not hrp or not hum then return end
    
    if flying then
        FlyBtn.Text = "SIA51 Fly: ON"
        FlyBtn.BackgroundColor3 = Color3.fromRGB(25, 130, 25)
        
        task.spawn(function()
            -- Bypasses the stiff T-Pose or broken swimming physics loop
            while flying and char and hrp and hum do
                local cam = workspace.CurrentCamera
                local moveDir = hum.MoveDirection
                
                -- Stabilizes natural velocity so gravity doesn't violently pull you down
                hrp.Velocity = Vector3.new(0, 0.02, 0)
                
                if moveDir.Magnitude > 0 then
                    -- Smoothly glides towards where your mobile thumbstick is moving
                    local flightTarget = cam.CFrame.LookVector * flySpeed
                    if moveDir.Z > 0 then flightTarget = -flightTarget end -- Corrects reverse joystick inputs
                    
                    hrp.CFrame = hrp.CFrame + Vector3.new(flightTarget.X, flightTarget.Y, flightTarget.Z)
                else
                    -- Keep hovering steadily in place when you let go of the joystick
                    hrp.Velocity = Vector3.new(0, 0.01, 0)
                end
                
                RunService.Heartbeat:Wait()
            end
        end)
    else
        FlyBtn.Text = "SIA51 Fly: OFF"
        FlyBtn.BackgroundColor3 = Color3.fromRGB(130, 25, 25)
    end
end)