Minecraft styled flight without using PlatformStand

minecraft fly.lua

--[[
	@author depso (depthso)
	@description Minecraft styled flight without using PlatformStand

	-- Keybinds
		W, S - Forward, Backwards
		A, D - Left, Right
		Shift, Q - Down
		Space, E - Up
		Ctrl - Sprint 
		F - Toggle flight (Changable in UI)
]]

--// Services
local Players = game:GetService("Players")
local UserInputService = game:GetService("UserInputService")
local RunService = game:GetService("RunService")
local InsertService = game:GetService("InsertService")

--// ReGui (UI Library)
local ReGui = loadstring(game:HttpGet('https://raw.githubusercontent.com/depthso/Dear-ReGui/refs/heads/main/ReGui.lua'))()
local PrefabsId = "rbxassetid://" .. ReGui.PrefabsId
ReGui:Init({
	Prefabs = InsertService:LoadLocalAsset(PrefabsId)
})

--// LocalPlayer
local Camera = workspace.CurrentCamera
local LocalPlayer = Players.LocalPlayer
local Character, Root

local FlyCFrame

local function CharacterAdded(NewCharacter)
	Character = NewCharacter or LocalPlayer.CharacterAdded:Wait()
	Root = Character:WaitForChild("HumanoidRootPart")
end

local function RefreshPivot()
	FlyCFrame = Character:GetPivot()
end

CharacterAdded(LocalPlayer.Character)
RefreshPivot()

----// Create UI Window
local Window = ReGui:Window({
	Title = "Flight | Depso",
	Size = UDim2.fromOffset(300, 150)
})

----// Toggles
local EnabledCheckbox = Window:Checkbox({Label = "Enabled", Value = false})
Window:Keybind({Label = "Toggle keybind", Value = Enum.KeyCode.F, Callback=function()
	--// Toggle the enabled checkbox
	local Enabled = not EnabledCheckbox.Value
	EnabledCheckbox:SetValue(Enabled)
	
	--// Refresh the base pivot
	if not Enabled then return end
	RefreshPivot()
end})

----// Speeds
Window:Separator({Text = "Speeds"})
local FlightSpeed = Window:SliderInt({Label = "Flight speed", Minimum = 1, Maximum = 20})
local SprintSpeed = Window:SliderInt({Label = "Sprint multiply", Minimum = 4, Maximum = 20})

--// Flight tick
RunService.Stepped:Connect(function()
	local Enabled = EnabledCheckbox.Value
	local Speed = FlightSpeed.Value
	local SprintMuli = SprintSpeed.Value

	--// Check if the flight is enabled
	if not Enabled then return end

	--// Base pivot
	local CX, CY, CZ = Camera.CFrame.Rotation:ToOrientation()
	local Rotation = CFrame.Angles(0, CY, 0)
	local Pivot = CFrame.new(FlyCFrame.Position) * Rotation
	
	--// Reset the Root's velocity
	local V = Root.Velocity
	Root.Velocity = Vector3.new(0, V.Y < 0 and math.abs(V.Y) or 0.5,0)
	
	--// Sprint
	local Sprint = UserInputService:IsKeyDown(Enum.KeyCode.LeftControl)
	Speed *= Sprint and SprintMuli or 1

	--// Horizontal
	local Left = UserInputService:IsKeyDown(Enum.KeyCode.A)
	local Right = UserInputService:IsKeyDown(Enum.KeyCode.D)
	local Horizontal = (Left and -Speed) or (Right and Speed) or 0
	
	--// Vertical
	local Shift = UserInputService:IsKeyDown(Enum.KeyCode.LeftShift)
	local Space = UserInputService:IsKeyDown(Enum.KeyCode.Space)
	
	Shift = Shift or UserInputService:IsKeyDown(Enum.KeyCode.Q)
	Space = Space or UserInputService:IsKeyDown(Enum.KeyCode.E) 
	
	local Vertical = (Shift and -Speed) or (Space and Speed) or 0
	
	--// Forward
	local Forwards = UserInputService:IsKeyDown(Enum.KeyCode.W)
	local Backwards = UserInputService:IsKeyDown(Enum.KeyCode.S)
	local Forward = (Forwards and -Speed) or (Backwards and Speed) or 0
	
	--// Calulate final Pivot
	FlyCFrame = Pivot * CFrame.new(
		Horizontal,
		Vertical,
		Forward
	)

	--// Pivot Character
	Character:PivotTo(FlyCFrame)
end)