Velocity fly script by GPT ig

local UIS = game:GetService("UserInputService")
local RS = game:GetService("RunService")
local Players = game:GetService("Players")
local player = Players.LocalPlayer

local char = player.Character or player.CharacterAdded:Wait()
local root = char:WaitForChild("HumanoidRootPart")
local humanoid = char:WaitForChild("Humanoid")

local velocityControl = Instance.new("BodyVelocity")
velocityControl.MaxForce = Vector3.new(1e5, 0, 1e5)
velocityControl.Velocity = Vector3.zero
velocityControl.P = 10000
velocityControl.Name = "JoystickVelocity"

local speed = 150
local enabled = false
local inputVector = Vector3.zero
local currentVelocity = Vector3.zero
local lerpSpeed = 5

local bodyFollowEnabled = false
local lockYEnabled = false
local upHeld = false
local downHeld = false
local lastLookDir = Vector3.new(0, 0, -1)
local ySpeed = 50
local ySpeedMultiplier = 1

local gui = Instance.new("ScreenGui", player:WaitForChild("PlayerGui"))
gui.Name = "VelocityGui"
gui.ResetOnSpawn = false

local btn = Instance.new("TextButton")
btn.Text = "Velocity: OFF"
btn.Size = UDim2.new(0, 140, 0, 50)
btn.Position = UDim2.new(0, 10, 0, 10)
btn.BackgroundColor3 = Color3.fromRGB(30, 30, 30)
btn.TextColor3 = Color3.new(1, 1, 1)
btn.Parent = gui

btn.MouseButton1Click:Connect(function()
	enabled = not enabled
	btn.Text = "Velocity: " .. (enabled and "ON" or "OFF")
	if enabled then
		velocityControl.Parent = root
	else
		velocityControl.Parent = nil
		velocityControl.Velocity = Vector3.zero
		currentVelocity = Vector3.zero
		upHeld = false
		downHeld = false
	end
end)

local function createBtn(text, posY, isRightSide)
	local b = Instance.new("TextButton")
	b.Size = UDim2.new(0, 140, 0, 40)
	if isRightSide then
		b.Position = UDim2.new(1, -150, 0, posY)
	else
		b.Position = UDim2.new(0, 10, 0, posY)
	end
	b.AnchorPoint = Vector2.new(0, 0)
	b.Text = text
	b.BackgroundColor3 = Color3.fromRGB(40, 40, 40)
	b.TextColor3 = Color3.new(1, 1, 1)
	b.AutoButtonColor = false
	b.Parent = gui
	return b
end

local bodyFollowBtn = createBtn("Body Follow: OFF", 10, true)
local lockYBtn = createBtn("Lock Y: OFF", 60, true)
local upBtn = createBtn("↑", 110, true)
local downBtn = createBtn("↓", 160, true)
local ySpeedDownBtn = createBtn("Y Speed -", 210, true)
local ySpeedUpBtn = createBtn("Y Speed +", 260, true)

bodyFollowBtn.MouseButton1Click:Connect(function()
	bodyFollowEnabled = not bodyFollowEnabled
	bodyFollowBtn.Text = "Body Follow: " .. (bodyFollowEnabled and "ON" or "OFF")
end)

lockYBtn.MouseButton1Click:Connect(function()
	lockYEnabled = not lockYEnabled
	lockYBtn.Text = "Lock Y: " .. (lockYEnabled and "ON" or "OFF")
end)

upBtn.MouseButton1Down:Connect(function()
	upHeld = true
end)
upBtn.MouseButton1Up:Connect(function()
	upHeld = false
end)

downBtn.MouseButton1Down:Connect(function()
	downHeld = true
end)
downBtn.MouseButton1Up:Connect(function()
	downHeld = false
end)

ySpeedDownBtn.MouseButton1Click:Connect(function()
	ySpeedMultiplier = math.max(0.1, ySpeedMultiplier - 0.1)
end)

ySpeedUpBtn.MouseButton1Click:Connect(function()
	ySpeedMultiplier = math.min(2.0, ySpeedMultiplier + 0.1)
end)

local joystickTouch = nil
local joystickStartPos = nil

UIS.TouchStarted:Connect(function(input)
	if enabled and not joystickTouch then
		local screenSize = workspace.CurrentCamera.ViewportSize
		if input.Position.X < screenSize.X / 2 then
			joystickTouch = input
			joystickStartPos = input.Position
		end
	end
end)

UIS.TouchMoved:Connect(function(input)
	if enabled and input == joystickTouch then
		local delta = input.Position - joystickStartPos
		local maxRadius = 100
		if delta.Magnitude > maxRadius then
			delta = delta.Unit * maxRadius
		end
		inputVector = Vector3.new(delta.X / maxRadius, 0, delta.Y / maxRadius)
	end
end)

UIS.TouchEnded:Connect(function(input)
	if enabled and input == joystickTouch then
		joystickTouch = nil
		inputVector = Vector3.zero
	end
end)

local camera = workspace.CurrentCamera
camera.CameraType = Enum.CameraType.Custom

local function updateCamera()
	local character = player.Character
	if not character then return end
	local rootPart = character:FindFirstChild("HumanoidRootPart")
	if not rootPart then return end

	camera.CameraSubject = character:FindFirstChildOfClass("Humanoid") or rootPart
	camera.CameraType = Enum.CameraType.Custom
end

player.CharacterAdded:Connect(function()
	task.wait(0.1)
	char = player.Character
	root = char:WaitForChild("HumanoidRootPart")
	humanoid = char:WaitForChild("Humanoid")
	updateCamera()
end)

updateCamera()

RS.RenderStepped:Connect(function(dt)
	if char and root and humanoid then
		if enabled then
			local camCF = camera.CFrame
			local camRight = Vector3.new(camCF.RightVector.X, 0, camCF.RightVector.Z).Unit
			local camForward = Vector3.new(camCF.LookVector.X, 0, camCF.LookVector.Z).Unit

			local moveDir = Vector3.zero

			if inputVector.Magnitude > 0.1 then
				moveDir = (camRight * inputVector.X + camForward * -inputVector.Z).Unit
				local targetVelocity = moveDir * speed * inputVector.Magnitude
				currentVelocity = currentVelocity:Lerp(targetVelocity, math.clamp(lerpSpeed * dt, 0, 1))

				if bodyFollowEnabled then
					lastLookDir = lastLookDir:Lerp(moveDir, math.clamp(lerpSpeed * dt, 0, 1))
					root.CFrame = CFrame.lookAt(root.Position, root.Position + lastLookDir)
				end
			else
				currentVelocity = currentVelocity:Lerp(Vector3.zero, math.clamp(lerpSpeed * dt, 0, 1))
			end

			local finalYVelocity = 0
			if upHeld then
				finalYVelocity = ySpeed * ySpeedMultiplier
			elseif downHeld then
				finalYVelocity = -ySpeed * ySpeedMultiplier
			elseif lockYEnabled then
				finalYVelocity = 0
			end

			if lockYEnabled or upHeld or downHeld then
				velocityControl.MaxForce = Vector3.new(1e9, 1e9, 1e9)
				velocityControl.Velocity = Vector3.new(currentVelocity.X, finalYVelocity, currentVelocity.Z)
			else
				velocityControl.MaxForce = Vector3.new(1e9, 0, 1e9)
				velocityControl.Velocity = Vector3.new(currentVelocity.X, 0, currentVelocity.Z)
			end
		else
			velocityControl.Velocity = Vector3.zero
		end
	end
end)