added coins

Assets/Code/UI/GameplayController.cs

@@ -0,0 +1,24 @@
+using TMPro;
+using UnityEngine;
+
+namespace Code.UI
+{
+    public class GameplayController : MonoBehaviour
+    {
+        public static GameplayController Instance;
+
+        [SerializeField] private TMP_Text coinsText;
+        private int _coins;
+
+        private void Awake()
+        {
+            Instance = this;
+        }
+
+        public void AddCoin()
+        {
+            _coins++;
+            coinsText.text = $"{_coins} Coins";
+        }
+    }
+}

Assets/Code/UI/GameplayController.cs.meta

@@ -0,0 +1,3 @@
+fileFormatVersion: 2
+guid: d58863c11032483fab5516d2f58bec42
+timeCreated: 1772883610

Assets/Code/UI/MainMenuController.cs

@@ -1,4 +1,3 @@
-using System;
 using UnityEngine;
 using UnityEngine.SceneManagement;
 using UnityEngine.UI;
@@ -8,9 +7,11 @@ namespace Code.UI
     public class MainMenuController : MonoBehaviour
     {
         [SerializeField] private Button playButton;
+        [SerializeField] private AudioSource musicAudioSource;
 
         private void Start()
         {
+            DontDestroyOnLoad(musicAudioSource);
             playButton.onClick.AddListener(LoadGameplay);
         }