Static variable not changing from outside class

[zen-ventzi]

using UnityEngine;
using System.Collections;

public class GameManager : MonoBehaviour
{
#region variables

public const int MaxBrainGamesPerTunnel = 3;

#region static
public static float GameSpeed;
public static int BrainGamesPlayed = 0;
public static bool GameOver, IsGamePaused;
#endregion

public GameObject blackScreen;
public GameObject GameWorld;
#endregion

void Awake()
{
    GameSpeed = 13 * PlayerPrefs.GetFloat("ScaleY"); //editor
    BlackScreenManager.IsTotallyBlack = false;

    //print(PlayerPrefs.GetInt("CameraWidth") + "			" + PlayerPrefs.GetInt("CameraHeight"));
}

void Update () {
    CheckForGameOver();
}

void CheckForGameOver()
{
    if (GameOver)
    {
        blackScreen.SetActive(true);
        GameSpeed *= 0.9f;

        if (BlackScreenManager.IsTotallyBlack)
        {
            Destroy(GameWorld);
            Application.LoadLevel("MainMenuScene");
        }
    }
}

void OnDestroy()
{
    GameOver = false;
}

public static void PauseGame()
{
    IsGamePaused = true;
}

public static void ResumeGame()
{
    IsGamePaused = false;
}

}

using UnityEngine;
using UnityEngine.UI;
using System.Collections;

public class CheckIsCorrect : MonoBehaviour {

public static bool CanPlay = true;

private GameObject currentText;
private float timePassedAfterClick;

public GameObject correct;
public GameObject incorrect;
void Start () {
    this.currentText = GameObject.Find(transform.name + "Text");
    CanPlay = false;
    //print(GameManager.BrainGamesPlayed);
}

void Update () {
    Vector2 mousePos = Camera.main.ScreenToWorldPoint(Input.mousePosition);

    this.timePassedAfterClick += (this.timePassedAfterClick > 0 ? Time.deltaTime : 0);

    if (this.timePassedAfterClick == 0)
    {
        if (collider2D.OverlapPoint(mousePos) && Input.GetMouseButtonDown(0))
        {
            this.timePassedAfterClick += Time.deltaTime;
            if (this.IsCorrect())
            {
                this.correct.SetActive(true);
            }
            else
            {
                this.incorrect.SetActive(true);
            }
        }
    }
    else if(this.timePassedAfterClick > 0.2f)
    {
        Destroy(transform.parent.gameObject);
    }
    
}

private bool IsCorrect()
{
    int currentNumber = int.Parse(currentText.GetComponent<Text>().text);

    if (currentNumber == EquationControler.Result)
    {
        return true;
    }
    else
    {
        return false;
    }
}

void OnDestroy()
{        
    if (GameManager.BrainGamesPlayed == GameManager.MaxBrainGamesPerTunnel)
    {
        GameManager.ResumeGame();
    }
    else
    {
        CanPlay = true;
    }
}

}

Note: I make a print line to check if it enters OnCollisionStay and it does indeed but GamesPlayed static variable doesn’t seem to change at all. What can be the problem ?

[HarshadK]

for the way you are trying to access your class, your class also needs to be static.

Something like:

public static class GameManager : MonoBehaviour
{
    public static int GamesPlayed = 0;
}

Then you can access it like the way you are doing it:

public class CheckForGame : MonoBehaviour {
 
    void OnCollisionStay2D(Collision2D collision)
    {
        GameManager.GamesPlayed += 1;
    }
}

OR

an another method is using an instance of class that is static using which you can access your class variables. Something like:

public class GameManager : MonoBehaviour
{
    public static int GamesPlayed = 0;

    public static GameManager gameManager = null;

    void Awake()
    {
           if(gameManager == null)
           {
               gameManager = this;
               DontDestroyOnLoad(gameObject);
            } else
            {
               Destroy(gameObject);
            }

     }
}

Then you can access it like:

public class CheckForGame : MonoBehaviour {
 
    void OnCollisionStay2D(Collision2D collision)
    {
        // We use the gameManager instance of the class to access it's variable
        GameManager.gameManger.GamesPlayed += 1;
    }
}

[zen-ventzi]

I’m not sure exactly how I managed to fix the bug, but I think it was accessed from more than 2 classes and in one of them I change it and then in the other I put it back to normal … hah sry for the inconvinient question