My Camera see throught Part , How to fix it?

So i made a Cam Script . Because i wanted a shiftlock . The prob is that now the player is able to see throught the floor and other part i dont know how to fix it so if u know help me !

Here the script :

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--- INDEX ---

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--Services

local userInputService = game:GetService("UserInputService")

local runService = game:GetService("RunService")





local localPlayer = game:GetService("Players").LocalPlayer





local Camera = game:GetService("Workspace").CurrentCamera





local xAngle = 0

local yAngle = 0

local cameraPos = Vector3.new(1.5,1.5,15)







wait(1)

Camera.CameraType = Enum.CameraType.Scriptable

userInputService.MouseBehavior = Enum.MouseBehavior.LockCenter







userInputService.InputChanged:Connect(function(input)

if input.UserInputType == Enum.UserInputType.MouseMovement then

xAngle = xAngle-input.Delta.x*0.4

yAngle = math.clamp(yAngle-input.Delta.y*0.4,-80,80)

end

end)



runService.RenderStepped:Connect(function()

local Character = localPlayer.Character

local rootPart = Character:FindFirstChild("HumanoidRootPart")

if Character and rootPart then

local startCFrame = CFrame.new((rootPart.CFrame.p + Vector3.new(0,2,0)))*CFrame.Angles(0, math.rad(xAngle), 0)*CFrame.Angles(math.rad(yAngle), 0, 0)

local cameraCFrame = startCFrame + startCFrame:vectorToWorldSpace(Vector3.new(cameraPos.X,cameraPos.Y,cameraPos.Z))

local cameraFocus = Character:FindFirstChild("Head").CFrame

Camera.CFrame = CFrame.new(cameraCFrame.p,cameraFocus.p)

end

end)



wait(1)

local player = game.Players.LocalPlayer

local character = player.Character

local torso = character.HumanoidRootPart

local mouse = player:GetMouse()



character.Humanoid.AutoRotate = false



mouse.Move:connect(function()

torso.CFrame = CFrame.new(torso.Position, mouse.Hit.p*Vector3.new(1,0,1) + torso.Position*Vector3.new(0, 1, 0))

end)