Рефакторинг сцены главного меню.

1) Реогранизована иерархия
2) Удалены неиспользуемые элементы
3) Список уровней формируется в GameManagment списком элементов LevelModel

Assets/Scenes/Levels.meta

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Assets/Scenes/Levels/Level 1.asset

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+--- !u!114 &11400000
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+  m_Script: {fileID: 11500000, guid: 9391feb4ca90a65468a8a388294bc5b1, type: 3}
+  m_Name: Level 1
+  m_EditorClassIdentifier: 
+  SceneName: Level_1
+  Name: MATS
+  MenuSprite: {fileID: 21300000, guid: 426478b073313244bbe84d3ec1cafa64, type: 3}

Assets/Scenes/Levels/Level 1.asset.meta

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Assets/Scenes/Levels/Level 2.asset

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+  m_Script: {fileID: 11500000, guid: 9391feb4ca90a65468a8a388294bc5b1, type: 3}
+  m_Name: Level 2
+  m_EditorClassIdentifier: 
+  SceneName: Level_2
+  Name: EMIR
+  MenuSprite: {fileID: 21300000, guid: 29916103981328e438052adcf04f2737, type: 3}

Assets/Scenes/Levels/Level 2.asset.meta

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Assets/Scenes/Levels/LevelModel.cs

@@ -0,0 +1,9 @@
+using UnityEngine;
+
+[CreateAssetMenu(fileName = "New Level", menuName = "Levels/New Level")]
+public class LevelModel : ScriptableObject
+{
+    public string SceneName;
+    public string Name;
+    public Sprite MenuSprite;
+}

Assets/Scenes/Levels/LevelModel.cs.meta

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Assets/Scenes/Levels/TestLevel.asset

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+  m_Name: TestLevel
+  m_EditorClassIdentifier: 
+  SceneName: TestLevel
+  Name: TEST
+  MenuSprite: {fileID: 21300000, guid: 65b81d2bb7d94e646a4a3ea517c9aea2, type: 3}

Assets/Scenes/Levels/TestLevel.asset.meta

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Assets/Scripts/ChooseLevelButtonsTasks.cs

@@ -1,61 +0,0 @@
-using System;
-using System.Collections;
-using System.Collections.Generic;
-using UnityEngine;
-using UnityEngine.UI;
-using TMPro;
-
-public class ChooseLevelButtonsTasks : MonoBehaviour
-{
-    [SerializeField] private Image menuLevelImg;
-    [SerializeField] private List<Sprite> menuSprites;
-    [SerializeField] private TextMeshProUGUI gameText;
-
-    [SerializeField] private GameObject btnNext, btnPrev;
-
-    private List<string> menuText = new List<string> { "MATS", "EMIR" };
-
-    private int  levelsAmount = 2;
-
-    private void Start()
-    {
-        btnNext.SetActive(true);
-        btnPrev.SetActive(false);
-    }
-
-    public void OnPrevBtnClick()
-    {
-        GameData.currentChosenLevel--;
-        if (GameData.currentChosenLevel < 1)
-        {
-            GameData.currentChosenLevel = levelsAmount;
-        }
-
-        menuLevelImg.sprite = menuSprites[GameData.currentChosenLevel - 1];
-        gameText.text = menuText[GameData.currentChosenLevel - 1];
-
-        btnNext.SetActive(true);
-        btnPrev.SetActive(false);
-    }
-
-    public void OnNextBtnClick()
-    {
-        GameData.currentChosenLevel++;
-        if (GameData.currentChosenLevel > levelsAmount)
-        {
-            GameData.currentChosenLevel = 1;
-        }
-
-        menuLevelImg.sprite = menuSprites[GameData.currentChosenLevel - 1];
-        gameText.text = menuText[GameData.currentChosenLevel - 1];
-
-        btnNext.SetActive(false);
-        btnPrev.SetActive(true);
-    }
-
-    public void OnTestBtnClick()
-    {
-        SceneLoader.LoadScene(3);
-    }
-
-}

Assets/Scripts/LevelChooser.cs

@@ -0,0 +1,64 @@
+using System.Collections.Generic;
+using TMPro;
+using UnityEngine;
+using UnityEngine.UI;
+
+public class LevelChooser : MonoBehaviour
+{
+    [SerializeField] private List<LevelModel> _levels;
+    [SerializeField] private Image _levelImage;
+    [SerializeField] private TextMeshProUGUI _levelNameText;
+
+    [SerializeField] private GameObject _nextButton;
+    [SerializeField] private GameObject _prevButton;
+
+    public LevelModel CurrentLevel => _levels[_currentLevelIndex];
+
+    private int _currentLevelIndex;
+
+    private void Start()
+    {
+        _currentLevelIndex = 0;
+        UpdateUI();
+    }
+
+    public void ShowPreviousLevel()
+    {
+        _currentLevelIndex--;
+        if (_currentLevelIndex < 0)
+        {
+            _currentLevelIndex = 0;
+        }
+
+        UpdateUI();
+    }
+
+    public void ShowNextLevel()
+    {
+        _currentLevelIndex++;
+        if (_currentLevelIndex > _levels.Count - 1)
+        {
+            _currentLevelIndex = _levels.Count - 1;
+        }
+
+        UpdateUI();
+    }
+
+    private void UpdateUI()
+    {
+        _levelImage.sprite = CurrentLevel.MenuSprite;
+        _levelNameText.text = CurrentLevel.Name;
+
+        UpdateButtonsVisibility();
+    }
+
+    private void UpdateButtonsVisibility()
+    {
+        bool isFirstLevel = _currentLevelIndex == 0;
+        bool isLastLevel = _currentLevelIndex == _levels.Count - 1;
+        bool hasMultipleLevels = _levels.Count > 1;
+
+        _prevButton.SetActive(hasMultipleLevels && !isFirstLevel);
+        _nextButton.SetActive(hasMultipleLevels && !isLastLevel);
+    }
+}

Assets/Scripts/LevelLauncher.cs

@@ -0,0 +1,17 @@
+using UnityEngine;
+
+[RequireComponent(typeof(LevelChooser))]
+public class LevelLauncher : MonoBehaviour
+{
+    private LevelChooser _levelChooser;
+
+    private void Start()
+    {
+        _levelChooser = GetComponent<LevelChooser>();
+    }
+
+    public void LaunchLevel()
+    {
+        SceneLoader.LoadScene(_levelChooser.CurrentLevel.SceneName);
+    }
+}

Assets/Scripts/PlayBtnClick.cs

@@ -1,23 +0,0 @@
-using System;
-using System.Collections;
-using System.Collections.Generic;
-using UnityEngine;
-using UnityEngine.UI;
-
-public class PlayBtnClick : MonoBehaviour
-{
-    private Button btn;
-
-    private void Start()
-    {
-        btn = GetComponent<Button>();
-
-        btn.onClick.AddListener(BtnTask);
-    }
-
-    private void BtnTask()
-    {
-        //SceneLoader.LoadNextScene();
-        SceneLoader.LoadScene(GameData.currentChosenLevel);
-    }
-}

Assets/Scripts/SceneManagment/SceneLoader.cs

@@ -19,4 +19,8 @@ public class SceneLoader : MonoBehaviour
     {
         SceneManager.LoadScene(sceneIndex);
     }
+    public static void LoadScene(string sceneName)
+    {
+        SceneManager.LoadScene(sceneName);
+    }
 }