How to wake a rotating part script, similar to the way you inspect a gun in Phantom Forces?

OR!!!!

You can make the object's position/CFrame the mouse.Hit.p right?

Here's a quick example:

local Player = game.Players.LocalPlayer
local Mouse = Player:GetMouse()
local Object = --bla bla bla
Mouse.Changed(function())
Object.Position = Mouse.hit.p
end)

Haven't tested it out but I am pretty sure it might work.

You can also use UserInputService(UIS) for the rotation part.

another example:

local UIS = game:GetService("UserInputService")

UIS.InputBegan:Connect(function(input))
if input.KeyCode == Enum.KeyCode.R then // You can change R to whatever you want
Object.Orientation = Object.Orientation + Vector3.new(0,0,0)--Change the number to your amount!
end
end)
UIS.InputEnded:Connec(function(input))
if input.KeyCode == Enum.KeyCode.R then
return
end
end)

Try checking out this tutorial on YouTube. It should help you.

https://www.youtube.com/watch?v=NSvBg7IYe7g

You need to first figure out when the mouse button is held down and when it is released:

local down, mouse = 0, game.Players.LocalPlayer:GetMouse()

mouse.Button1Down:Connect(function()
    down = true
end)

mouse.Button1Up:Connect(function()
    down = false
end)

while true do
    wait()
    if down then
        --Insert rest of code that captures position/direction of mouse and rotates the object accordingly.
    end
end

Create the rest of the code in that if the mouse is moving to the left then the object rotates to the left. If the mouse moves up then the object rotates up. The same for moving to the right and moving down.