Added comments to everything

Assets/Scripts/Game/ObstacleEnd.cs

@@ -1,19 +1,31 @@
 using Game;
 using UnityEngine;
 
+/// <summary>
+/// This class controls the visibility of the obstacle end object based on the current game mode.
+/// </summary>
 public class ObstacleEnd : MonoBehaviour
 {
-    void Start()
+    /// <summary>
+    /// Initializes the visibility of the object when the game starts.
+    /// </summary>
+    private void Start()
     {
         UpdateVisibility();
     }
 
-    void Update()
+    /// <summary>
+    /// Updates the visibility of the object every frame.
+    /// </summary>
+    private void Update()
     {
         UpdateVisibility();
     }
 
-    private void UpdateVisibility() // Sets object active if playing obstacle course
+    /// <summary>
+    /// Sets the object to be active only if the game mode is "Obstacle Course".
+    /// </summary>
+    private void UpdateVisibility()
     {
         if (GameManager.gameMode == GameManager.GameMode.obstacleCourse)
         {