Make that script only work while right mouse is pressed

Question

Please somebody could make this script only work while right mouse is pressed? Thank you!!

Here is the code below:

--This game needs to match the proper X-axis jitter

X = 0  --X-axis jitter,The higher the value, the more applicable it is to C8 and Evo guns
Y = 4  --Y-axis down,This is matched with the x-axis adjustment
sleep = 14   --At the moment, I think 15 milliseconds is the best


function OnEvent(event, arg)
    EnablePrimaryMouseButtonEvents(true)
if (event == "MOUSE_BUTTON_PRESSED" and arg == 2) then
        A = true
        ClearLog()
        OutputLogMessage("On\n")
end

if (event == "MOUSE_BUTTON_PRESSED" and arg == 4) then
        A = false
        ClearLog()
        OutputLogMessage("Off\n")
end

        
if (event == "MOUSE_BUTTON_PRESSED" and arg == 1 and A==true) then
    repeat
        MoveMouseRelative(X, Y)
        X = -X   --crux
        Sleep(sleep)
    until not IsMouseButtonPressed(1)
end
end

Thank You!!!!!!

Answer 1

--This game needs to match the proper X-axis jitter

X = 0  --X-axis jitter,The higher the value, the more applicable it is to C8 and Evo guns
Y = 4  --Y-axis down,This is matched with the x-axis adjustment
sleep = 14   --At the moment, I think 15 milliseconds is the best

function OnEvent(event, arg)
   EnablePrimaryMouseButtonEvents(true)
   if event == "MOUSE_BUTTON_PRESSED" and arg == 1 and IsMouseButtonPressed(3) then
      repeat
         MoveMouseRelative(X, Y)
         X = -X   --crux
         Sleep(sleep)
      until not IsMouseButtonPressed(1) or not IsMouseButtonPressed(3) 
   end
end