I can't figure out why this Save System wouldn't work...

I recently started working on my first game and I could solve all the problems except for this one. I tried saving the Settings you could change in my settingsmenu when eg. restarting the game using playerprefs and it all terribly failed. I made the Settingsmenu using Brackeys tutorial. WHen I run this code it just does not save any values and the Resolutions in the Resolutionsdropdown aren't even shown anymore.
Anyways, I spent 20 hours trying to fix it and I couldn't get it to work so I would be so thankful for your help. here is the code in a bit simplified (sorry for not putting up an exact piece of code but I really do not know what is malfunctioning):

Code (CSharp):

1. using System.Collections;
2. using System.Collections.Generic;
3. using UnityEngine;
4. using UnityEngine.UI;
5. using UnityEngine.Audio;
6.  
7. public class SettingsMenu : MonoBehaviour
8. {
9.     Resolution[] resolutions;
10.     private bool isFulls;
11.  
12.     public AudioMixer AudioMixer;
13.     public Dropdown ResolutionDropdown;
14.  
15.     public Dropdown DifficultyDropdown;
16.     public Dropdown QualityDropdown;
17.     public Toggle FullscreenToggle;
18.     public Slider volS;
19.  
20.     void Awake()
21.     {
22.         // Refreshes the shown values
23.         DifficultyDropdown.value = PlayerPrefs.GetInt("saveDifficultyStory");
24.         QualityDropdown.value = PlayerPrefs.GetInt("saveQuality");
25.         volS.value = PlayerPrefs.GetFloat("volume");
26.  
27.         // Refreshes the Toggle
28.         int saveFulls = PlayerPrefs.GetInt("saveFulls");
29.         if (saveFulls == 0)
30.         {
31.             FullscreenToggle.isOn = false;
32.             isFulls = false;
33.         }
34.         if (saveFulls == 1)
35.         {
36.             FullscreenToggle.isOn = true;
37.             isFulls = true;
38.         }
39.  
40.         // Refreshes the option
41.         QualitySettings.SetQualityLevel(PlayerPrefs.GetInt("saveQuality"));
42.         AudioMixer.SetFloat("volume", PlayerPrefs.GetFloat("volume"));
43.  
44.     }
45.  
46.     void Start()
47.     {
48.         int CurrentResolutionIndex = 0;
49.         resolutions = Screen.resolutions;
50.  
51.         ResolutionDropdown.ClearOptions();
52.  
53.         List<string> options = new List<string>();
54.  
55.         for (int i = 0; i < resolutions.Length; i++)
56.         {
57.             string Option = resolutions[i].width + " x " + resolutions[i].height + " " + resolutions[i].refreshRate + "Hz";
58.             options.Add(Option);
59.  
60.             if (resolutions[i].width == Screen.currentResolution.width &&
61.                 resolutions[i].height == Screen.currentResolution.height &&
62.                 resolutions[i].refreshRate == Screen.currentResolution.refreshRate)
63.             {
64.                 CurrentResolutionIndex = i;
65.             }
66.         }
67.  
68.         ResolutionDropdown.AddOptions(options);
69.         ResolutionDropdown.value = CurrentResolutionIndex;
70.         ResolutionDropdown.RefreshShownValue();
71.     }
72.  
73.     public void SetResolution(int ResolutionIndex)
74.     {
75.         Resolution resolution = resolutions[ResolutionIndex];
76.         Screen.SetResolution(resolution.width, resolution.height, Screen.fullScreen);
77.     }
78.  
79.     public void SetVolume(float volume)
80.     {
81.         AudioMixer.SetFloat("volume", volume);
82.         PlayerPrefs.SetFloat("volume", volume);
83.         PlayerPrefs.Save();
84.     }
85.  
86.     public void SetQuality(int qualityIndex)
87.     {
88.         QualitySettings.SetQualityLevel(qualityIndex);
89.         PlayerPrefs.SetInt("saveQuality", qualityIndex);
90.         PlayerPrefs.Save();
91.     }
92.  
93.  
94.     public void SetFullscreen(bool isFullscreen)
95.     {
96.         Screen.fullScreen = isFullscreen;
97.         if (isFulls == true)
98.         {
99.             PlayerPrefs.SetInt("saveFulls", 0);
100.             isFulls = false;
101.         }
102.         if (isFulls == false)
103.         {
104.             PlayerPrefs.SetInt("saveFulls", 1);
105.             isFulls = true;
106.         }
107.     }
108.  
109.     public void SetStoryDifficulty(int diffultyIndex)
110.     {
111.         DifficultyManager.difficultyStory = diffultyIndex;
112.         PlayerPrefs.SetInt("saveDifficultyStory", diffultyIndex);
113.         PlayerPrefs.Save();
114.     }
115. }

 

This would be a first step: http://plbm.com/?p=220
Explain your problem. People generally dont want to look through a code example without even knowing what to look for. That's just a waste of time

 

Thank you for your reply, I was a bit stupid and changed things up a bit I just cannot figure out an exact spot of the code that is wrong so there is this massive codeblock here. I still hope I made it a bit easier to understand what I want the code to do.

 

This should save and load the values properly. Check if it really does not by printing one of the values.

Code (CSharp):

1. Debug.Log(PlayerPrefs.GetFloat("volume"));

See if the changes you apply really are not loaded.

If they are not, check if you do not have any script wiping the PlayerPrefs, for example by calling the DeleteKey function. I assume you do not have any errors in your console?
https://docs.unity3d.com/ScriptReference/PlayerPrefs.html

Also, i got to ask: you are actually calling said functions, like SetVolume, with (for example) a UI slider, right? If they are not called, of course no changes would be saved. You can check that they are being called as expected by also putting a simple Debug.Log message into the functions.

 

Thanks, will try that!

 

Here's an example of simple persistent loading/saving values using PlayerPrefs:

https://pastebin.com/icJSq5zC

Useful for a relatively small number of simple values, such as volume or what-have-you.

 

I wanted to ask if the problem could be that I have too many PlayerPrefs-variables. I have about 60 in total.

 

I believe you can have as many keys as you want. I prefer to build my save string with delimiters using a single key; might be beneficial for you to learn that approach as it would require one get and one set.

 

Do you know a tutorial for that?

 

https://docs.microsoft.com/en-us/dotnet/csharp/how-to/parse-strings-using-split

 

The only limit is your imagination. And storage space.

 

I found a solution for my original problem. I made a scene just for the settings and it somehow works although i did not not touch these variables in any other script in the original main menu scene. I have no clue why that worked but it did. I think though that getting into what you've send me is beneficial for the future so... thanks, i will check that out!

thats what I like most about Programming and Game-making in general!