Scriptable First Person??

****First Person Script, there are no problems with my script, but how could I make this more efficient by not having to go through thousands of lines (mouse.X) when you find "Mouse0 = 0" and stuff like that how could I make that a bit better? I want this script to be the best of its ability. Is there a way to make it something like Mouse0 = math.rad(0)math.rad(20) -- math.rad(start number) - math.rad(end number) I know i could do this the script only pays attention to the first number (start number)

player = game.Players.LocalPlayer -- Defines our player

mouse = player:GetMouse() -- Gets our mouse

cam = game.Workspace.CurrentCamera -- Gets the camera

local angle = 0 -- angle

Mouse0 = 0 -- mouse0
Mouse1 = 646 --mouse1
Mouse2 = 1292 --mouse2

maxleftangle = 0.45 -- the furthest the camera can move to the left
maxrightangle = -0.45 -- the furthest the camera can move to the right

target = game.Workspace.Sounds -- Note this is just the thing we are going to be putting our camera to look at

wait(2) -- Wait 2 seconds

cam.CameraSubject = target -- Changes the camera subject to the target
cam.CameraType = "Scriptable" -- makes the camera type scriptable
cam.CoordinateFrame = CFrame.new(target.Position) -- changes the camera position to the targets position

mouse.Move:connect(function() -- Detects when the mouse moves
    if mouse.X == Mouse0 and angle ~= maxleftangle then -- checks if the mouse is equal to Mouse0 and not at maxangle
        cam.CameraType = "Scriptable" -- Keeps the camera still scriptable just incase the first time it did not work
        cam.CoordinateFrame = CFrame.new(target.Position) *CFrame.Angles(0,angle,0) -- Changes the angle
        angle = angle +.05 --Adds +.05 to the angle
        print(angle) -- This will print the angle
    else -- else
        if mouse.X == Mouse1 then -- if mouse == 1 then
            print("Mouse is in the middle of the screen") -- print mouse is in the middle of the screen
        else -- else
            if mouse.X == Mouse2 and angle ~= maxrightangle then -- Detects if its equal to mouse2 and not at maxangle
            cam.CameraType = "Scriptable" --makes sure its still scriptable
                cam.CoordinateFrame = CFrame.new(target.Position) *CFrame.Angles(0,angle,0) -- Changes angle
        angle = angle -.05 -- subtracts .05 from the angle
        print(angle) -- prints
            else -- makes it so no errors will happen
            end -- Ends the script
        end
    end
end)