Unity Camera Jitter Effect

The following is the camera jitter effect source code:

using unityengine;using system.collections;public class sc_shakecamera :  monobehaviour{        private float shaketime =  0.0f;        private float fps = 20.0f;         private float frameTime = 0.0f;         private float shakeDelta = 0.005f;         public Camera cam; //= UICamera.currentCamera;        public bool isshakecamera = false;    //  Use this for initialization        void  Start ()     {               //  cam = uicamera.currentcamera;                 shakeTime = 0.56f;                 fps = 20.0f;                frameTime = 0.03f;                 shakeDelta = 0.05f;            }        // update  is called once per frame        void  Update ()     {                 if  (Isshakecamera)         {                         if  (shakeTime  > 0)             {                                shakeTime -= Time.deltaTime;                                  if  (shaketime <= 0)                  {                                           cam.rect =&nbSp;new rect (0.0f, 0.0f, 10.0f, 10.0f);                                         isshakeCamera = false;                                           shakeTime = 0.56f;                                          fps = 20.0f;                                          frametime =  0.03f;                                          shakeDelta = 0.05f;                 }                                  else                 {                                          frametime += time.deltatime;                                          if  (frametime  > 1.0 / fps)                      {                                                   frameTime = 0;                                     &nbsP;            cam.rect = new rect ( shakedelta *  ( -1.0f + 2.0f * random.value), shakedelta *  ( -1.0f  + 2.0f * random.value),  1.0f, 1.0f);                                         }                                 }                         }                 }        }      } 

Unity Camera Jitter Effect