Before you post, just know that I did NOT make this code. 
I actually copied it. So, my question is, what can I add to this code that would stop the camera from moving when the pause menu application is called to action? Does that make any sense?
using UnityEngine;
using System.Collections;
public class PauseMenu : MonoBehaviour
{
public GUISkin skin;
private float gldepth = -0.5f;
private float startTime = 0.1f;
public Material mat;
private long tris = 0;
private long verts = 0;
private float savedTimeScale;
private SepiaToneEffect pauseFilter;
private bool showfps;
private bool showtris;
private bool showvtx;
private bool showfpsgraph;
public Color lowFPSColor = Color.red;
public Color highFPSColor = Color.green;
public int lowFPS = 30;
public int highFPS = 50;
public GameObject start;
public string url = "unity.html";
public Color statColor = Color.yellow;
public string[] credits= {
"A Fugu Games Production",
"Programming by Phil Chu",
"Fugu logo by Shane Nakamura Designs",
"Copyright (c) 2007-2008 Technicat, LLC"} ;
public Texture[] crediticons;
public enum Page {
None,Main,Options,Credits
}
private Page currentPage;
private float[] fpsarray;
private float fps;
private int toolbarInt = 0;
private string[] toolbarstrings = {"Audio","Graphics","Stats","System"};
void OnPostRender() {
if (showfpsgraph mat != null) {
GL.PushMatrix ();
GL.LoadPixelMatrix();
for (var i = 0; i < mat.passCount; ++i)
{
mat.SetPass(i);
GL.Begin( GL.LINES );
for (int x=0; x < fpsarray.Length; ++x) {
GL.Vertex3(x, fpsarray[x], gldepth);
}
GL.End();
}
GL.PopMatrix();
ScrollFPS();
}
}
void ScrollFPS() {
for (int x = 1; x < fpsarray.Length; ++x) {
fpsarray[x-1]=fpsarray[x];
}
if (fps < 1000) {
fpsarray[fpsarray.Length - 1]=fps;
}
}
static bool IsDashboard() {
return Application.platform == RuntimePlatform.OSXDashboardPlayer;
}
static bool IsBrowser() {
return (Application.platform == RuntimePlatform.WindowsWebPlayer ||
Application.platform == RuntimePlatform.OSXWebPlayer);
}
void LateUpdate () {
if (showfps || showfpsgraph) {
FPSUpdate();
}
if (Input.GetKeyDown("escape"))
{
switch (currentPage)
{
case Page.None:
PauseGame();
break;
case Page.Main:
if (!IsBeginning())
UnPauseGame();
break;
default:
currentPage = Page.Main;
break;
}
}
}
void OnGUI () {
if (skin != null) {
GUI.skin = skin;
}
ShowStatNums();
ShowLegal();
if (IsGamePaused()) {
GUI.color = statColor;
switch (currentPage) {
case Page.Main: MainPauseMenu(); break;
case Page.Options: ShowToolbar(); break;
case Page.Credits: ShowCredits(); break;
}
}
}
void ShowLegal() {
if (!IsLegal()) {
GUI.Label(new Rect(Screen.width-100,Screen.height-20,90,20),
"jdonavan.com");
}
}
bool IsLegal() {
return !IsBrowser() ||
Application.absoluteURL.StartsWith("http://www.jdonavan.com/") ||
Application.absoluteURL.StartsWith("http://jdonavan.com/");
}
void ShowToolbar() {
BeginPage(300,300);
toolbarInt = GUILayout.Toolbar (toolbarInt, toolbarstrings);
switch (toolbarInt) {
case 0: VolumeControl(); break;
case 3: ShowDevice(); break;
case 1: Qualities(); QualityControl(); break;
case 2: StatControl(); break;
}
EndPage();
}
void ShowCredits() {
BeginPage(300,300);
foreach(string credit in credits) {
GUILayout.Label(credit);
}
foreach( Texture credit in crediticons) {
GUILayout.Label(credit);
}
EndPage();
}
void ShowBackButton() {
if (GUI.Button(new Rect(20, Screen.height - 50, 50, 20),"Back")) {
currentPage = Page.Main;
}
}
void ShowDevice() {
GUILayout.Label("Unity player version "+Application.unityVersion);
GUILayout.Label("Graphics: "+SystemInfo.graphicsDeviceName+" "+
SystemInfo.graphicsMemorySize+"MB\n"+
SystemInfo.graphicsDeviceVersion+"\n"+
SystemInfo.graphicsDeviceVendor);
GUILayout.Label("Shadows: "+SystemInfo.supportsShadows);
GUILayout.Label("Image Effects: "+SystemInfo.supportsImageEffects);
GUILayout.Label("Render Textures: "+SystemInfo.supportsRenderTextures);
}
void Qualities() {
switch (QualitySettings.currentLevel)
{
case QualityLevel.Fastest:
GUILayout.Label("Fastest");
break;
case QualityLevel.Fast:
GUILayout.Label("Fast");
break;
case QualityLevel.Simple:
GUILayout.Label("Simple");
break;
case QualityLevel.Good:
GUILayout.Label("Good");
break;
case QualityLevel.Beautiful:
GUILayout.Label("Beautiful");
break;
case QualityLevel.Fantastic:
GUILayout.Label("Fantastic");
break;
}
}
void QualityControl() {
GUILayout.BeginHorizontal();
if (GUILayout.Button("Decrease")) {
QualitySettings.DecreaseLevel();
}
if (GUILayout.Button("Increase")) {
QualitySettings.IncreaseLevel();
}
GUILayout.EndHorizontal();
}
void VolumeControl() {
GUILayout.Label("Volume");
AudioListener.volume = GUILayout.HorizontalSlider(AudioListener.volume, 0, 1);
}
void StatControl() {
GUILayout.BeginHorizontal();
showfps = GUILayout.Toggle(showfps,"FPS");
showtris = GUILayout.Toggle(showtris,"Triangles");
showvtx = GUILayout.Toggle(showvtx,"Vertices");
showfpsgraph = GUILayout.Toggle(showfpsgraph,"FPS Graph");
GUILayout.EndHorizontal();
}
void FPSUpdate() {
float delta = Time.smoothDeltaTime;
if (!IsGamePaused() delta !=0.0) {
fps = 1 / delta;
}
}
void ShowStatNums() {
GUILayout.BeginArea( new Rect(Screen.width - 100, 10, 100, 200));
if (showfps) {
string fpsstring= fps.ToString ("#,##0 fps");
GUI.color = Color.Lerp(lowFPSColor, highFPSColor,(fps-lowFPS)/(highFPS-lowFPS));
GUILayout.Label (fpsstring);
}
if (showtris || showvtx) {
GetObjectStats();
GUI.color = statColor;
}
if (showtris) {
GUILayout.Label (tris+"tri");
}
if (showvtx) {
GUILayout.Label (verts+"vtx");
}
GUILayout.EndArea();
}
void BeginPage(int width, int height) {
GUILayout.BeginArea( new Rect((Screen.width - width) / 2, (Screen.height - height) / 2, width, height));
}
void EndPage() {
GUILayout.EndArea();
if (currentPage != Page.Main) {
ShowBackButton();
}
}
bool IsBeginning() {
return (Time.time < startTime);
}
void MainPauseMenu() {
BeginPage(200,200);
if (GUILayout.Button (IsBeginning() ? "Play" : "Continue")) {
UnPauseGame();
}
if (GUILayout.Button ("Options")) {
currentPage = Page.Options;
}
if (GUILayout.Button ("Credits")) {
currentPage = Page.Credits;
}
if (IsBrowser() !IsBeginning() GUILayout.Button ("Restart")) {
Application.OpenURL(url);
}
EndPage();
}
void GetObjectStats() {
verts = 0;
tris = 0;
GameObject[] ob = FindObjectsOfType(typeof(GameObject)) as GameObject[];
foreach (GameObject obj in ob) {
GetObjectStats(obj);
}
}
void GetObjectStats(GameObject obj) {
Component[] filters;
filters = obj.GetComponentsInChildren<MeshFilter>();
foreach( MeshFilter f in filters )
{
tris += f.sharedMesh.triangles.Length/3;
verts += f.sharedMesh.vertexCount;
}
}
void PauseGame() {
savedTimeScale = Time.timeScale;
Time.timeScale = 0;
AudioListener.pause = true;
if (pauseFilter)
pauseFilter.enabled = true;
currentPage = Page.Main;
}
void UnPauseGame() {
Time.timeScale = savedTimeScale;
AudioListener.pause = false;
if (pauseFilter)
pauseFilter.enabled = false;
currentPage = Page.None;
if (IsBeginning() start != null) {
start.active = true;
}
}
bool IsGamePaused() {
return (Time.timeScale == 0);
}
void OnApplicationPause(bool pause) {
if (IsGamePaused()) {
AudioListener.pause = true;
}
}
}