Use coroutine to change wall transparency

Assets/Scripts/src/Wall/WallTransparency.cs

@@ -1,4 +1,5 @@
 using System;
+using System.Collections;
 using System.Collections.Generic;
 using src.Base;
 using src.Helpers;
@@ -8,6 +9,7 @@ namespace src.Wall
 {
     public class WallTransparency : GameplayComponent
     {
+        public float secondsToWait = 0.1f; 
         private SpriteRenderer _spriteRenderer;
         private Color _originalSpriteColor;
         private bool _isTransparent;
@@ -16,21 +18,27 @@ namespace src.Wall
         {
             _spriteRenderer = GetComponentInChildren<SpriteRenderer>();
             _originalSpriteColor = _spriteRenderer.color;
+            StartCoroutine(nameof(CheckIfSomethingNear));
         }
 
-        private void Update()
+        private IEnumerator CheckIfSomethingNear()
         {
-            var position = transform.position;
-            /* RayCast from the center of the tile up one distance and set layerMask to Player only! */
-            var hit = Physics2D.Raycast(new Vector2(position.x + .5f, position.y + 0.5f),
-                Vector2.up, 1f, 1 << 15);
-            if (hit.collider)
+            while (true)
             {
-                BecomeTransparent();
-            }
-            else
-            {
-                BecomeOpaque();
+                    var position = transform.position;
+                    /* RayCast from the center of the tile up one distance and set layerMask to Player only! */
+                    var hit = Physics2D.Raycast(new Vector2(position.x + .5f, position.y + 0.5f),
+                        Vector2.up, 1f, 1 << 15);
+                    if (hit.collider)
+                    {
+                        BecomeTransparent();
+                    }
+                    else
+                    {
+                        BecomeOpaque();
+                    }
+
+                    yield return new WaitForSeconds(secondsToWait);
             }
         }
 

ProjectSettings/GraphicsSettings.asset

@@ -32,6 +32,9 @@ GraphicsSettings:
   - {fileID: 10753, guid: 0000000000000000f000000000000000, type: 0}
   - {fileID: 10770, guid: 0000000000000000f000000000000000, type: 0}
   - {fileID: 10783, guid: 0000000000000000f000000000000000, type: 0}
+  - {fileID: 16000, guid: 0000000000000000f000000000000000, type: 0}
+  - {fileID: 17000, guid: 0000000000000000f000000000000000, type: 0}
+  - {fileID: 16001, guid: 0000000000000000f000000000000000, type: 0}
   m_PreloadedShaders: []
   m_SpritesDefaultMaterial: {fileID: 10754, guid: 0000000000000000f000000000000000,
     type: 0}