Playerprefs doesn't save anything.

Question

I'm trying to make a 30x30 block area in which every block has a script that saves it's values according to the position to the block. But for some reason the playerprefs doesn't save the values. Here's the script:

 using System.Collections;
 using System.Collections.Generic;
 using UnityEngine;
 
 public class scri : MonoBehaviour {
 
     public Mesh[] meshes;
 
     public MeshFilter meshf;
 
     public int loaded;
 
     public int meshNumber;
 
     public string position;
 
     public string hasLoadedposition;
 
     void Start () {
 
         position = transform.position.x + ":" + transform.position.y;
         hasLoadedposition = position + "hasLoaded";
 
 
         PlayerPrefs.GetInt(hasLoadedposition, loaded);
 
         if(loaded == 1)
         {
             Debug.Log("saved and loaded correctly");
         } else
         {
             Debug.Log("loading for first time or error");
             PlayerPrefs.SetInt(hasLoadedposition, 1);
         }
 
         meshf = GetComponent<MeshFilter>();
 
         meshNumber = Random.Range(0, meshes.Length);
 
 
         meshf.mesh = meshes[meshNumber];
 
     }
 
     public void DeleteAll()
     {
         PlayerPrefs.DeleteAll();
     }
 
 }

Answer 1

Answer by Bonfire-Boy · Feb 02, 2018 at 08:06 PM

You have to call PlayerPrefs.Save() to actually save them to disk. Otherwise you're just changing the runtime copy.

This means that you can choose when to save things. It's handy if, for example, you only want a player's progress to be saved on completion of a level.

https://docs.unity3d.com/ScriptReference/PlayerPrefs.html

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$$anonymous$$ · Feb 02, 2018 at 08:54 PM 0

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It still doesn't work.

melsy · Feb 02, 2018 at 09:18 PM 0

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This is partially true. PlayerPrefs.Save() will save all modified prefs to the disk, But PlayerPrefs.Set(int,float,key) will also write them .

Bonfire-Boy melsy · Feb 02, 2018 at 09:38 PM 0

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Is that an undocumented function? I've not come across it.

It's certainly true that the Getters retrieve from file, rather than the local copy, which reduces the usefulness of delayed saving. In most cases, if you want anything other than saving things when they're set, then you need your own local copy anyway.

I don't usually use PlayerPrefs, for these kind of reasons, but when I do I like to have a generic wrapper class so I can choose exactly what I'm saving and loading, and when.

melsy Bonfire-Boy · Feb 02, 2018 at 09:43 PM 0

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Yeah when i used player prefs in the past Set is how i wrote them I didnt even use Save fo most of the time. .It probably shouldnt work but it does. I built a few mobile games that way before i got unlazy and figured out serialization.

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Answer 2

Answer by melsy · Feb 02, 2018 at 09:05 PM

At first glance it looks like you are setting the int asLoadedaposition string different depending on where the object is. So your calling a player pref that doesn't exist.

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Bonfire-Boy · Feb 02, 2018 at 09:10 PM 0

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Yeah definitely a good idea to log what key string you're using each time. Or simplify things by using a const key string to see if that makes a difference.

Playerprefs doesn't save anything.

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