Shift Lock (Localscript)

local MobileCameraFramework = {}
local players = game:GetService("Players")
local runservice = game:GetService("RunService")
local CAS = game:GetService("ContextActionService")
local player = players.LocalPlayer
local character = player.Character or player.CharacterAdded:Wait()
local root = character:WaitForChild("HumanoidRootPart")
local humanoid = character.Humanoid
local camera = workspace.CurrentCamera
local mouse = player:GetMouse()
local button = {}
local UserGameSettings = UserSettings():GetService("UserGameSettings")
local DEFAULT_MOUSE_LOCK_CURSOR = "rbxasset://textures/MouseLockedCursor.png"

--Visiblity
uis = game:GetService("UserInputService")
ismobile = false --uis.TouchEnabled
button.Visible = ismobile

local states = {
    OFF = "rbxasset://textures/ui/mouseLock_off@2x.png",
    ON = "rbxasset://textures/ui/mouseLock_on@2x.png"
}
local MAX_LENGTH = 900000
local active = false
local ENABLED_OFFSET = CFrame.new(1.7, 0, 0)
local DISABLED_OFFSET = CFrame.new(-1.7, 0, 0)
local function UpdateImage(STATE)
    button.Image = states[STATE]
end
local function UpdateAutoRotate(BOOL)
    humanoid.AutoRotate = BOOL
end
local function GetUpdatedCameraCFrame(ROOT, CAMERA)
    return CFrame.new(root.Position, Vector3.new(CAMERA.CFrame.LookVector.X * MAX_LENGTH, root.Position.Y, CAMERA.CFrame.LookVector.Z * MAX_LENGTH))
end

local function isFirstPerson()
    local character = game:GetService("Players").LocalPlayer.Character
    local head = character and character:findFirstChild("Head")
    if head and head:IsA("BasePart") then
        if (character.Head.CFrame.p - camera.CFrame.p).magnitude < 1 then
            return true
        else
            return false
        end
    end
end

local function EnableShiftlock()
    if isFirstPerson() then return end
    mouse.Icon = DEFAULT_MOUSE_LOCK_CURSOR
    UpdateAutoRotate(false)
    UpdateImage("ON")
    UserGameSettings.RotationType = Enum.RotationType.CameraRelative
    uis.MouseBehavior = Enum.MouseBehavior.LockCenter
    root.CFrame = GetUpdatedCameraCFrame(root, camera)
    camera.CFrame = camera.CFrame * ENABLED_OFFSET
end
local function DisableShiftlock()
    mouse.Icon = ""
    UpdateAutoRotate(true)
    UpdateImage("OFF")
    camera.CFrame = camera.CFrame * DISABLED_OFFSET
    pcall(function()
        active:Disconnect()
        active = nil
    end)
end
UpdateImage("OFF")
active = false
function ShiftLock()
    if not active then
        active = runservice.RenderStepped:Connect(function()
            EnableShiftlock()
        end)
    else
        DisableShiftlock()
    end
end
local ShiftLockButton = CAS:BindAction("ShiftLOCK", ShiftLock, false, "On")
CAS:SetPosition("ShiftLOCK", UDim2.new(0.8, 0, 0.8, 0))
local AllowedToShiftLock = true
uis.InputBegan:Connect(function(input)
    if not AllowedToShiftLock then return end
    if input.KeyCode == Enum.KeyCode.LeftShift or input.KeyCode == Enum.KeyCode.RightShift then
        ShiftLock()
    end
end)

player.Chatted:Connect(function(msg)
    msg = msg:gsub("^/e ", "")
    if msg:lower() == "/enableshiftlock" then
        AllowedToShiftLock = true
        warn("Shift lock enabled")
    elseif msg:lower() == "/disableshiftlock" then
        AllowedToShiftLock = false
        DisableShiftlock()
        warn("Shift lock disabled")
    end
end)