[den]

вот код меню:

using UnityEngine;
using System.Collections;

public class mainMenu : MonoBehaviour {
public Rect  windowRect1= new Rect (20, 20, 120, 50);
public Rect  windowRect2= new Rect (20, 20, 120, 50);
private string b1;
private string b2;
private bool a=false;
private bool menu=false;
public float g=5.0f;
void OnGUI()
    {
         if((menu &&  (Application.loadedLevel==1))||(Application.loadedLevel==0)){windowRect1 = GUI.Window (0, windowRect1, MyWindow1, "Main Menu");
            if(a) windowRect2 = GUI.Window (0, windowRect2, MyWindow2, "Setting");}
        if(Application.loadedLevel==0)
        {
            b1="Play";
            b2="Exit";
        }
        if(Application.loadedLevel==1)
        {
            b1="Continue";
            b2="Main Menu";
            if(Input.GetAxis("Esc")!=0)
            {            
                menu=true;
                Screen.lockCursor = false;
            }
            if(menu) Time.timeScale=0.1f; //  СТРОЧКА!!!!
            else Time.timeScale=1.0f;
        }
    }
    
    void MyWindow1 (int windowID) 
    {
        GUILayout.BeginHorizontal();
        if(GUILayout.Button(b1))
        {
            if(Application.loadedLevel==0) Application.LoadLevel(1);
            if(Application.loadedLevel==1)
            {
                Screen.lockCursor = true;
                menu=false;
            }
        }
        GUILayout.EndHorizontal();
        GUILayout.BeginHorizontal();
        if(GUILayout.Button("Setting")) a=!a;
        GUILayout.EndHorizontal();
        GUILayout.BeginHorizontal();
        if(GUILayout.Button(b2))  // СТРОЧКА!!!
        {
            if(Application.loadedLevel==1) Application.LoadLevel(0);
            if(Application.loadedLevel==0) Application.Quit();
        }
        GUILayout.EndHorizontal();
        //GUI.DragWindow();
    }
    void MyWindow2 (int windowID) 
    {
        GUILayout.BeginHorizontal();
        GUILayout.Label("Graphics");
        GUILayout.EndHorizontal();
        GUILayout.BeginHorizontal();
        g=GUILayout.HorizontalSlider(g,0,6);
        if(g>=0 && g<1)
            QualitySettings.currentLevel = QualityLevel.Fastest;
        if(g>=1 && g<2)
            QualitySettings.currentLevel = QualityLevel.Fast;
        if(g>=2 && g<3)
            QualitySettings.currentLevel = QualityLevel.Simple;
        if(g>=3 && g<4)
            QualitySettings.currentLevel = QualityLevel.Good;
        if(g>=4 && g<5)
            QualitySettings.currentLevel = QualityLevel.Beautiful;
        if(g>=5 && g<6)
            QualitySettings.currentLevel = QualityLevel.Fantastic;
        GUILayout.EndHorizontal();
        GUILayout.BeginHorizontal();
        if(GUILayout.Button("Ok")) a=!a;
        GUILayout.EndHorizontal();
        //GUI.DragWindow();
    }
} 


Почему если вместь if(menu) Time.timeScale=0.1f; поставить if(menu) Time.timeScale=0.0f;
то компилятор ругается

ArgumentException: Getting control 0's position in a group with only 0 controls when doing repaint
Aborting

UnityEngine.GUILayoutGroup.GetNext ()
UnityEngine.GUILayoutUtility.DoGetRect (UnityEngine.GUIContent content, UnityEngine.GUIStyle style, UnityEngine.GUILayoutOption[] options) [0x00000]
UnityEngine.GUILayoutUtility.GetRect (UnityEngine.GUIContent content, UnityEngine.GUIStyle style, UnityEngine.GUILayoutOption[] options) [0x00000]
UnityEngine.GUILayout.DoButton (UnityEngine.GUIContent content, UnityEngine.GUIStyle style, UnityEngine.GUILayoutOption[] options) [0x00000]
UnityEngine.GUILayout.Button (System.String text, UnityEngine.GUILayoutOption[] options) [0x00000]
mainMenu.MyWindow1 (Int32 windowID) (at Assets\mainMenu.cs:52)
UnityEngine.GUI+_Window.Do ()
UnityEngine.GUI.EndWindows (UnityEngine.IDList idlist)
UnityEngine.GUIUtility.EndGUI (Int32 doLayout, Int32 doWindows, UnityEngine.IDList idlist)
UnityEditor.EditorGUIUtility:RenderGameViewCameras (Rect, Rect, Boolean, Boolean)
UnityEditor.EditorGUIUtility:RenderGameViewCameras (Rect, Rect, Boolean, Boolean)
UnityEditor.GameView:OnGUI()
System.Reflection.MonoMethod:InternalInvoke(Object , Object[])
System.Reflection.MonoMethod:InternalInvoke(Object , Object[])
System.Reflection.MonoMethod:Invoke(Object, BindingFlags, Binder, Object[], CultureInfo)
System.Reflection.MethodBase:Invoke(Object, Object[])
UnityEditor.HostView:Invoke(String)
UnityEditor.MaximizedHostView:OnGUI()

но не сразу а после нажатия кнопки "Continue" ??
Тыкает меня на if(GUILayout.Button(b2))
Почему?