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

local player = Players.LocalPlayer
local camera = workspace.CurrentCamera

------------------------------------------------
-- SETTINGS
------------------------------------------------
local speed = 70

------------------------------------------------
-- CHARACTER
------------------------------------------------
local character = player.Character or player.CharacterAdded:Wait()
local humanoid = character:WaitForChild("Humanoid")
local root = character:WaitForChild("HumanoidRootPart")
local animator = humanoid:WaitForChild("Animator")

------------------------------------------------
-- STATE
------------------------------------------------
local flying = false
local upDown = 0

local bodyVelocity
local bodyGyro

local idleTrack, moveTrack

------------------------------------------------
-- GUI (NO JOYSTICK CHANGES - IMPORTANT)
------------------------------------------------
local gui = Instance.new("ScreenGui")
gui.Name = "FlyGui"
gui.ResetOnSpawn = false
gui.Parent = player:WaitForChild("PlayerGui")

local button = Instance.new("TextButton")
button.Size = UDim2.new(0, 150, 0, 55)
button.Position = UDim2.new(0, 20, 0.45, 0)
button.BackgroundColor3 = Color3.fromRGB(120,120,120)
button.TextColor3 = Color3.fromRGB(255,255,255)
button.Text = "FLY"
button.TextSize = 22
button.Parent = gui

Instance.new("UICorner", button).CornerRadius = UDim.new(0,10)

------------------------------------------------
-- SPEED + UP/DOWN INPUT
------------------------------------------------
UserInputService.InputBegan:Connect(function(input, gp)
	if gp then return end

	if input.KeyCode == Enum.KeyCode.Equals then
		speed += 10
	elseif input.KeyCode == Enum.KeyCode.Minus then
		speed = math.max(10, speed - 10)
	end

	-- UP / DOWN (PC ONLY)
	if input.KeyCode == Enum.KeyCode.Space then
		upDown = 1
	elseif input.KeyCode == Enum.KeyCode.LeftShift then
		upDown = -1
	end
end)

UserInputService.InputEnded:Connect(function(input)
	if input.KeyCode == Enum.KeyCode.Space or input.KeyCode == Enum.KeyCode.LeftShift then
		upDown = 0
	end
end)

------------------------------------------------
-- ANIMATIONS
------------------------------------------------
local function loadAnimations()
	local idleAnim = Instance.new("Animation")
	idleAnim.AnimationId = "rbxassetid://247742499"

	local moveAnim = Instance.new("Animation")
	moveAnim.AnimationId = "rbxassetid://119783214"

	idleTrack = animator:LoadAnimation(idleAnim)
	moveTrack = animator:LoadAnimation(moveAnim)
end

loadAnimations()

------------------------------------------------
-- FOV
------------------------------------------------
local function setFOV(val)
	TweenService:Create(camera, TweenInfo.new(0.25), {
		FieldOfView = val
	}):Play()
end

------------------------------------------------
-- FLY PHYSICS
------------------------------------------------
local function startFly()
	bodyVelocity = Instance.new("BodyVelocity")
	bodyVelocity.MaxForce = Vector3.new(1e9,1e9,1e9)
	bodyVelocity.Parent = root

	bodyGyro = Instance.new("BodyGyro")
	bodyGyro.MaxTorque = Vector3.new(1e9,1e9,1e9)
	bodyGyro.CFrame = root.CFrame
	bodyGyro.Parent = root
end

local function stopFly()
	if bodyVelocity then bodyVelocity:Destroy() end
	if bodyGyro then bodyGyro:Destroy() end
end

------------------------------------------------
-- MAIN LOOP (🔥 FIXED JOYSTICK + NO INVERSION + UP/DOWN FIX)
------------------------------------------------
RunService.RenderStepped:Connect(function()
	if not flying then return end

	local moveDir = humanoid.MoveDirection

	-- 🔥 FIX: ONLY USE FLAT CAMERA (prevents inversion completely)
	local camCF = camera.CFrame

	local forward = Vector3.new(camCF.LookVector.X, 0, camCF.LookVector.Z)
	if forward.Magnitude > 0 then forward = forward.Unit end

	local right = Vector3.new(camCF.RightVector.X, 0, camCF.RightVector.Z)
	if right.Magnitude > 0 then right = right.Unit end

	-- ✔ joystick stays PERFECT (no touching Roblox controls)
	local direction =
		(right * moveDir.X)
		+ (forward * moveDir.Z)
		+ Vector3.new(0, upDown, 0)

	-- smooth fly
	local finalVelocity = direction * speed

	if bodyVelocity then
		bodyVelocity.Velocity = finalVelocity
	end

	if bodyGyro then
		bodyGyro.CFrame = camera.CFrame
	end

	-- animations
	local moving = moveDir.Magnitude > 0 or upDown ~= 0

	if moving then
		if idleTrack and idleTrack.IsPlaying then idleTrack:Stop() end
		if moveTrack and not moveTrack.IsPlaying then moveTrack:Play() end
		setFOV(90)
	else
		if moveTrack and moveTrack.IsPlaying then moveTrack:Stop() end
		if idleTrack and not idleTrack.IsPlaying then idleTrack:Play() end
		setFOV(70)
	end
end)

------------------------------------------------
-- TOGGLE
------------------------------------------------
button.MouseButton1Click:Connect(function()
	flying = not flying

	if flying then
		startFly()
	else
		stopFly()
		if idleTrack then idleTrack:Stop() end
		if moveTrack then moveTrack:Stop() end
		setFOV(70)
	end
end)

------------------------------------------------
-- RESPAWN FIX
------------------------------------------------
player.CharacterAdded:Connect(function(char)
	character = char
	humanoid = character:WaitForChild("Humanoid")
	root = character:WaitForChild("HumanoidRootPart")
	animator = character:WaitForChild("Animator")

	flying = false
	upDown = 0

	stopFly()
	loadAnimations()
	setFOV(70)
end)