Added a SoundManager Class and a Volume Slider to the options menu that can be...

Added a SoundManager Class and a Volume Slider to the options menu that can be used to change the volume of all sounds.

.gitignore

@@ -66,3 +66,5 @@ crashlytics-build.properties
 
 # Ignore UserSettings
 UserSettings/
+/Assets/Images/frameit_logo_512x512.png.meta
+/Assets/Images/ScreenCapture_1024x500.png.meta

Assets/Scenes/Menues/LaunchMenue.unity

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Assets/Scripts/SoundManager.cs

+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine.UI;
+using UnityEngine;
+
+public class SoundManager : MonoBehaviour
+{
+    public static SoundManager Instance;
+    [SerializeField] Slider volumeSlider;
+    public const float defaultVolume = 0.5f;
+    // Start is called before the first frame update
+    void Start()
+    {
+        if(!PlayerPrefs.HasKey("soundVolume")) {
+            PlayerPrefs.SetFloat("soundVolume", defaultVolume);
+            Load();
+        } else
+        {
+            Load();
+        }
+    }
+
+    public void Awake()
+    {
+        //singleton
+        if(Instance == null)
+        {
+            Instance = this;
+            DontDestroyOnLoad(gameObject);
+        } else
+        {
+            Destroy(gameObject);
+        }
+    }
+
+    public void ChangeVolume()
+    {
+        AudioListener.volume = volumeSlider.value;
+        Save();
+    }
+
+    private void Load()
+    {
+        volumeSlider.value = PlayerPrefs.GetFloat("soundVolume");
+    }
+    private void Save()
+    {
+        PlayerPrefs.SetFloat("soundVolume", volumeSlider.value);
+    }
+
+
+}

Assets/Scripts/SoundManager.cs.meta

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