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Question by rodrigopereiramelo · Jul 24, 2020 at 05:47 PM · scripting problemscript.scripting beginnerplayerprefsscriptingbasics

How to lock an int as a playerPref?

I have a system that unlock in the menu the next level:

 private void OnTriggerEnter2D(Collider2D col)
     {
         if (col.tag == "LadyBug")
         {
             FindObjectOfType<LevelManager>().NextLevel();
             int unlock = SceneManager.GetActiveScene().buildIndex;
             PlayerPrefs.SetInt("leavelCompleted", unlock + 1);
         }      
     }

but if i am at level 10 and go back to play level 3, it will ulock level 4 and lock the next levels that a pass already, how can i prevent this to happen, if i had passed some level, he could never be locked again.

this is the code in the menu that unlock the nextlevel:

 void Start()
     {
          leavelCompleted = PlayerPrefs.GetInt("leavelCompleted", 1);
 
         for (int i = 0; i < levelButtons.Length; i++)
         {
             if (i + 1 > leavelCompleted)
             {
                 levelButtons[i].interactable = false;
             }
         }
     }

thanks!!

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Answer by mbro514 · Jul 24, 2020 at 06:01 PM

Try this code for saving your game:

 private void OnTriggerEnter2D(Collider2D col)
      {
          if (col.tag == "LadyBug")
          {
              FindObjectOfType<LevelManager>().NextLevel();
              int unlock = SceneManager.GetActiveScene().buildIndex;
              if (unlock + 1 > PlayerPrefs.GetInt("leavelCompleted"))
            { PlayerPrefs.SetInt("leavelCompleted", unlock + 1); }
          }      
      }
 
 






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