[SOLVED] C# private global variable value changing by itself

Hi All,

I've run into a really strange problem in Unity Personal 5.3.2f1, some of the global variables I am using in my scripts seem to be resetting (so far an integer and a boolean, both private).

This script is on an empty GameObject and was working fine for a while, I prefab'd some of my objects (including this GameManager) and now I'm seeing this problem.

In this example I was originally getting a return of 4 on line 13 (4 scenes in my game), started noticing that my "Next Level" button (which calls LoadNextLevel() ) was reloading the same level over and over after making this into a prefab. I decided to define numberOfScenes as 4 on line 14, still getting the same result. Added some Debug.Log statements and a watch variable and saw that my numberOfScenes value seems to initialize just fine but goes to zero right as I get into LoadNextLevel() at line 38. If I set this to Public I can actually see that numberOfScenes stays 4 in the inspector, yet shows 0 in my Debug.Log statement and in the watch window so I'm thinking I've got something going on here.

My workaround for now is to set the value at 4 again in line 43, but I'm wondering if I've made some really silly mistake somewhere or if I should really reload a backup of my project from before this mess started and start over from there. I can also make this work correctly by changing Line 7 to "public int numberOfScenes = 4", but I'd really rather detect the number of levels.

I have deleted the GameManager from this scene, created a new empty GameObject, added this script to it, and still get the same result.

Does anything jump out as to why this value would be changing from 4 back to 0?

Code (csharp):

1. using UnityEngine;
2. using System.Collections;
3. using UnityEngine.SceneManagement;
4.  
5. public class GameManager : MonoBehaviour
6. {
7.     private int numberOfScenes;
8.  
9.     // Use this for initialization
10.     void Start ()
11.     {
12.         // TODO fix the scene count
13.         //numberOfScenes = SceneManager.sceneCountInBuildSettings;
14.         numberOfScenes = 4;
15.         Debug.Log("Number of scenes: " + numberOfScenes);
16.     }
17.    
18.     public void ReloadLevel()
19.     {
20.         // Disable "Next Level" button and reload the current scene
21.  
22.         FindObjectOfType<NextLevelButton>().Disable();
23.         SceneManager.LoadScene(SceneManager.GetActiveScene().buildIndex);
24.     }
25.  
26.     public void QuitGame()
27.     {
28.         Debug.Log ("Quitting game!");
29. #if UNITY_EDITOR
30.         if (UnityEditor.EditorApplication.isPlaying)
31.             UnityEditor.EditorApplication.isPlaying = false;
32.         else
33. #endif
34.             Application.Quit();
35.  
36.     }
37.  
38.     public void LoadNextLevel()
39.     {
40.         int thisLevel, nextLevel;
41.  
42.         // TODO fix numberOfScenes
43.         //numberOfScenes = 4;
44.         Debug.Log("Number of scenes: " + numberOfScenes);
45.         thisLevel = SceneManager.GetActiveScene().buildIndex;
46.  
47.         if (thisLevel >= numberOfScenes - 1)
48.             nextLevel = 0;
49.         else
50.             nextLevel = thisLevel + 1;
51.  
52.         Debug.Log ("Loading scene #" + nextLevel);
53.         SceneManager.LoadScene(nextLevel);
54.     }
55. }

 

I cannot see what would change it that early on, as the only assign to 0 is after the debug. might be a bug in the editor. try to put the script in a new empty project

 

I'm not getting what you're getting. Something is happening somewhere else.

 

Thanks guys, I think something has happened to my project -- better to catch it now. I just created a new project with only the GameManager object and script and it works as expected. I'll create a new project and start bringing my assets over, should have thought of trying that in the first place.

Thanks again!