Mobile shift lock

--Scripted by funwolf7

--Turn this to true to make the shift lock cursor thing appear at the center.
local SHOW_CENTER_CURSOR = true

------------------------------------------------------------------------
--Actual script starts here. I don't reccomend modifying anything past this point.

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

local Player = game.Players.LocalPlayer

local IsMobile = UserInputService.TouchEnabled --Is true if on mobile.

if IsMobile then --Only does things if it's on mobile.
    --Create the gui.
    local SHIFT_LOCK_OFF = 'rbxasset://textures/ui/mouseLock_off.png'
    local SHIFT_LOCK_ON = 'rbxasset://textures/ui/mouseLock_on.png'
    local SHIFT_LOCK_CURSOR = 'rbxasset://textures/MouseLockedCursor.png'

    local frame = Instance.new('Frame')
    frame.Name = "BottomLeftControl"
    frame.Size = UDim2.new(.1, 0, .1, 0)
    frame.Position = UDim2.new(1, 0, 1, 0)
    frame.AnchorPoint = Vector2.new(1,1)
    frame.BackgroundTransparency = 1
    frame.ZIndex = 10
    frame.Parent = script.Parent

    local ShiftLockIcon = Instance.new('ImageButton')
    ShiftLockIcon.Name = "MouseLockLabel"
    ShiftLockIcon.Size = UDim2.new(1, 0, 1, 0)
    ShiftLockIcon.Position = UDim2.new(0, 0, 0, 0)
    ShiftLockIcon.BackgroundTransparency = 1
    ShiftLockIcon.Image = SHIFT_LOCK_OFF
    ShiftLockIcon.Visible = true
    ShiftLockIcon.Parent = frame

    local frame2 = Instance.new('Frame')
    frame2.Name = "MiddleIcon"
    frame2.Size = UDim2.new(.075, 0, .075, 0)
    frame2.Position = UDim2.new(.5, 0, .5, 0)
    frame2.AnchorPoint = Vector2.new(.5,.5)
    frame2.BackgroundTransparency = 1
    frame2.ZIndex = 10
    frame2.Visible = true
    frame2.Parent = script.Parent

    local MouseLockCursor = Instance.new('ImageLabel')
    MouseLockCursor.Name = "MouseLockLabel"
    MouseLockCursor.Size = UDim2.new(1, 0, 1, 0)
    MouseLockCursor.Position = UDim2.new(0, 0, 0, 0)
    MouseLockCursor.BackgroundTransparency = 1
    MouseLockCursor.Image = SHIFT_LOCK_CURSOR
    MouseLockCursor.Visible = false
    MouseLockCursor.Parent = frame2

    local arc = Instance.new("UIAspectRatioConstraint")
    arc.AspectRatio = 1
    arc.DominantAxis = "Height"
    arc.Parent = frame
    arc:Clone().Parent = frame2

    --When the icon is pressed, change the icons and change a value that the RenderStepped below uses.
    local Activated = false
    ShiftLockIcon.Activated:connect(function()
        Activated = not Activated

        ShiftLockIcon.Image = Activated and SHIFT_LOCK_ON or SHIFT_LOCK_OFF
        MouseLockCursor.Visible = Activated and SHOW_CENTER_CURSOR
    end)

    --Will run every frame just after the default camera.
    local function OnStep()
        if Activated then
            local Camera = workspace.CurrentCamera
            if Camera then
                local Character = Player.Character
                local Humanoid = Character and Character:FindFirstChild"Humanoid"
                local RootPart = Character and Character:FindFirstChild"HumanoidRootPart"
                local Head = Character and Character:FindFirstChild"Head"
                if Humanoid and Humanoid.Health > 0 and RootPart then
                    --Rotate the player based off the camera.
                    local LookVector = Camera.CFrame.LookVector
                    RootPart.CFrame = CFrame.new(RootPart.Position) * CFrame.Angles(0,math.atan2(-LookVector.X,-LookVector.Z),0)
                end
                --Offsets the player if they aren't in first person.
                if Head and (Head.Position - Camera.CFrame.Position).Magnitude >= 1 then
                    Camera.CFrame = Camera.CFrame * CFrame.new(1.75,0,0)
                end
            end
        end
    end
    RunService:BindToRenderStep("MobileShiftLock",Enum.RenderPriority.Camera.Value+1,OnStep)
end