Audio Settings + UI Improvements

Assets/Audio/Audio Mixer.mixer

@@ -123,7 +123,9 @@ AudioMixerController:
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+  m_ExposedParameters:
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+    name: MasterVolume
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Assets/Prefabs/UI/Credits Menu Variant.prefab

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@@ -201,7 +278,7 @@ MonoBehaviour:
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Assets/Prefabs/UI/Options Menu Variant.prefab

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Assets/Scripts/UI/OptionsMenu.cs

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+using UnityEngine;
+using UnityEngine.Audio;
+using UnityEngine.UI;
+
+namespace UI
+{
+    public class OptionsMenu : MonoBehaviour
+    {
+        [SerializeField] private AudioMixer audioMixer = null;
+        [SerializeField] private Slider slider = null;
+        private const string MasterVolumeParameter = "MasterVolume";
+
+        private void Awake() => OnEnable();
+
+        private void OnEnable() => slider.value = PlayerPrefs.GetFloat(MasterVolumeParameter, 1f);
+
+
+        public void UpdateVolume() => SetVolume(slider.value);
+
+        public void SetVolume(float value)
+        {
+            audioMixer.SetFloat(MasterVolumeParameter, Mathf.Log10(value) * 20f);
+            PlayerPrefs.SetFloat(MasterVolumeParameter, value);
+        }
+    }
+}

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