local Players = game:GetService("Players")
local RunService = game:GetService("RunService")
local UserInputService = game:GetService("UserInputService")
local Workspace = game:GetService("Workspace")

local player = Players.LocalPlayer
local character = player.Character or player.CharacterAdded:Wait()
local hrp = character:WaitForChild("HumanoidRootPart")
local camera = Workspace.CurrentCamera

local flySpeed = 50
local isFlying = false
local bodyVelocity = nil
local upPressed, downPressed = false, false

local screenGui = Instance.new("ScreenGui")
screenGui.Name = "FlyUI"
screenGui.ResetOnSpawn = false
screenGui.Parent = player:WaitForChild("PlayerGui")

local mainFrame = Instance.new("Frame")
mainFrame.Size = UDim2.new(0, 150, 0, 120)
mainFrame.Position = UDim2.new(1, -160, 1, -140)
mainFrame.BackgroundColor3 = Color3.fromRGB(30, 30, 30)
mainFrame.Active = true
mainFrame.Draggable = true
mainFrame.Parent = screenGui

Instance.new("UICorner", mainFrame).CornerRadius = UDim.new(0, 12)

local toggle = Instance.new("TextButton")
toggle.Size = UDim2.new(1, -10, 0, 40)
toggle.Position = UDim2.new(0, 5, 0, 5)
toggle.Text = "FLY: OFF"
toggle.BackgroundColor3 = Color3.fromRGB(100, 150, 255)
toggle.TextColor3 = Color3.new(1, 1, 1)
toggle.Font = Enum.Font.GothamBold
toggle.TextScaled = true
toggle.Parent = mainFrame

local upBtn = Instance.new("TextButton")
upBtn.Size = UDim2.new(0.48, 0, 0, 30)
upBtn.Position = UDim2.new(0.02, 0, 0, 50)
upBtn.Text = "⬆️"
upBtn.BackgroundColor3 = Color3.fromRGB(0, 170, 255)
upBtn.TextColor3 = Color3.new(1, 1, 1)
upBtn.Font = Enum.Font.GothamBold
upBtn.TextScaled = true
upBtn.Parent = mainFrame
Instance.new("UICorner", upBtn).CornerRadius = UDim.new(0, 6)

local downBtn = Instance.new("TextButton")
downBtn.Size = UDim2.new(0.48, 0, 0, 30)
downBtn.Position = UDim2.new(0.5, 0, 0, 50)
downBtn.Text = "⬇️"
downBtn.BackgroundColor3 = Color3.fromRGB(255, 100, 100)
downBtn.TextColor3 = Color3.new(1, 1, 1)
downBtn.Font = Enum.Font.GothamBold
downBtn.TextScaled = true
downBtn.Parent = mainFrame
Instance.new("UICorner", downBtn).CornerRadius = UDim.new(0, 6)

local function startFlying()
	if isFlying then return end
	isFlying = true

	bodyVelocity = Instance.new("BodyVelocity")
	bodyVelocity.Velocity = Vector3.zero
	bodyVelocity.MaxForce = Vector3.new(4000, 4000, 4000)
	bodyVelocity.P = 1250
	bodyVelocity.Parent = hrp

	toggle.Text = "FLY: ON"
end

local function stopFlying()
	isFlying = false
	if bodyVelocity then
		bodyVelocity:Destroy()
		bodyVelocity = nil
	end
	toggle.Text = "FLY: OFF"
end

toggle.MouseButton1Click:Connect(function()
	if isFlying then
		stopFlying()
	else
		startFlying()
	end
end)

upBtn.MouseButton1Down:Connect(function() upPressed = true end)
upBtn.MouseButton1Up:Connect(function() upPressed = false end)
downBtn.MouseButton1Down:Connect(function() downPressed = true end)
downBtn.MouseButton1Up:Connect(function() downPressed = false end)

RunService.Heartbeat:Connect(function()
	if isFlying and bodyVelocity and hrp then

		local camLook = camera.CFrame.LookVector

		local forward = Vector3.new(camLook.X, 0, camLook.Z).Unit * flySpeed

		local verticalVelocity = 0
		if upPressed then verticalVelocity = flySpeed end
		if downPressed then verticalVelocity = -flySpeed end

		bodyVelocity.Velocity = forward + Vector3.new(0, verticalVelocity, 0)
	end
end)