using UnityEngine;
using System.Collections;

public class Menu : MonoBehaviour {
      
     bool b_IsShowMenu,b_IsShowGamePlay,b_IsShowOptions;
     bool b_IsMusicOn;
     // Use this for initialization
     void Start () {
         b_IsShowMenu = true;
         b_IsShowOptions = b_IsShowGamePlay = false;
         b_IsMusicOn = true;
     }
      
     // Update is called once per frame
     void Update () {
      
     }
      
     void OnGUI()
     {  
         if(b_IsShowMenu)
         {
             GUILayout.BeginArea(new Rect(Screen.width/200,Screen.height/200,300,300));
             GUILayout.BeginVertical();
             if(GUILayout.Button("StartGame"))
             {
                 b_IsShowMenu = false;
                 b_IsShowGamePlay = true;
             }
             GUILayout.FlexibleSpace();
             if(GUILayout.Button("Опции"))
             {
                 b_IsShowMenu = false;
                 b_IsShowOptions = true;
             }
             GUILayout.FlexibleSpace();
             if(GUILayout.Button("Выход"))
             {
                 Application.Quit();
             }
             GUILayout.EndVertical();
             GUILayout.EndArea();
         }
         else if(b_IsShowGamePlay)
         {
             GUILayout.BeginArea(new Rect(10,10,Screen.width-20,Screen.height-20));
             GUILayout.BeginVertical();
             GUILayout.FlexibleSpace();
             GUILayout.BeginHorizontal();
             GUILayout.FlexibleSpace();
             if(GUILayout.Button("Начать"))
             {
                 //play game
             }
             GUILayout.FlexibleSpace();
             GUILayout.EndHorizontal();
             GUILayout.FlexibleSpace();
             if(GUILayout.Button("Назад",GUILayout.Width(100)))
             {
                 b_IsShowGamePlay = false;
                 b_IsShowMenu = true;
             }
             GUILayout.EndVertical();
             GUILayout.EndArea();
         }
         else if(b_IsShowOptions)
         {
             GUILayout.BeginArea(new Rect(10,10,Screen.width-20,Screen.height-20));
             GUILayout.BeginVertical();
             GUILayout.FlexibleSpace();
             GUILayout.BeginHorizontal();
             GUILayout.FlexibleSpace();
             b_IsMusicOn = GUILayout.Toggle(b_IsMusicOn,"Вкл. музыку?");
             if(b_IsMusicOn)
             {
                 //play music
             }
             else
             {
                 //stop music
             }
             GUILayout.FlexibleSpace();
             GUILayout.EndHorizontal();
             GUILayout.FlexibleSpace();
             if(GUILayout.Button("Назад",GUILayout.Width(100)))
             {
                 b_IsShowOptions = false;
                 b_IsShowMenu = true;
             }
             GUILayout.EndVertical();
             GUILayout.EndArea();
         }
     }
}