Added basic sound manager

Assets/Scripts/SoundManager.cs

@@ -0,0 +1,24 @@
+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+
+public class SoundManager : MonoBehaviour
+{
+    private static SoundManager INSTANCE;
+
+    private AudioSource source;
+
+    void awake() {
+        if (SoundManager.INSTANCE == null) {
+            SoundManager.INSTANCE = this;
+            DontDestroyOnLoad(gameObject);
+            return;
+        }
+
+        Destroy(gameObject);
+    }
+
+    static void PlaySound(AudioClip clip, float volume = 1) {
+        INSTANCE.source.PlayOneShot(clip, volume);
+    }
+}

Assets/Scripts/SoundManager.cs.meta

@@ -0,0 +1,11 @@
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