Add Mouse Cap to current script 2.49?

Here is my current script that Im using for my game in 2.49. How do I go about adding a “mouse cap” to it so that the camera stops at a certain verticle point?

import Rasterizer

import Rasterizer

get controller

controller = GameLogic.getCurrentController()

get the object this script is attached to

player = controller.getOwner()

Get sensor named Mouse

mouse = controller.getSensor(“Mouse”)

Get the actuators

lookLeftRight = controller.getActuator(“LookLeftRight”)
lookUpDown = controller.getActuator(“LookUpDown”)

get width and height of game window

width = Rasterizer.getWindowWidth()
height = Rasterizer.getWindowHeight()

define mouse movement function

def mouseMove():

# distance moved from screen center      
x = width/2 - mouse.getXPosition()
y = height/2 - mouse.getYPosition()
# intialize mouse so it doesn't jerk first time
if hasattr(player, 'mouseInit') == False:
    x = 0
    y = 0
    # bug in Add Property
    # can't use True.  Have to use 1
    player.mouseInit = 1
# return mouse movement
return (x, y)

get mouse movement from function

move = mouseMove()

set mouse sensitivity

sensitivity = 0.0005

Amount, direction and sensitivity

leftRight = move[0] * sensitivity
upDown = move[1] * sensitivity

set the values

lookLeftRight.setDRot( 0.0, 0.0, leftRight, False)
lookUpDown.setDRot( upDown, 0.0, 0.0, True)

Use them

GameLogic.addActiveActuator(lookLeftRight, True)
GameLogic.addActiveActuator(lookUpDown, True)

Center mouse in game window

Rasterizer.setMousePosition(width/2, height/2)