Play Animation (blink opacity) on hit

Assets/Player/Scripts/PlayerCollisions.cs

@@ -1,13 +1,19 @@
+using System.Collections;
 using UnityEngine;
 
-[RequireComponent(typeof(PlayerManager))]
+[
+    RequireComponent(typeof(PlayerManager)),
+    RequireComponent(typeof(SpriteRenderer))
+]
 public class PlayerCollisions : MonoBehaviour
 {
     private PlayerManager _pm;
+    private SpriteRenderer _sr;
 
     private void Start()
     {
         _pm = GetComponent<PlayerManager>();
+        _sr = GetComponent<SpriteRenderer>();
     }
 
     private void OnTriggerStay2D(Collider2D collision)
@@ -37,4 +43,20 @@ public class PlayerCollisions : MonoBehaviour
             }
         }
     }
+
+    public void AnimateHit()
+    {
+        StartCoroutine(IAnimateHit());
+    }
+
+    private IEnumerator IAnimateHit()
+    {
+        for(int i = 0; i < 6; i++)
+        {
+            _sr.color = new Color(_sr.color.r, _sr.color.g, _sr.color.b, 0f);
+            yield return new WaitForSeconds(.1f);
+            _sr.color = new Color(_sr.color.r, _sr.color.g, _sr.color.b, 1f);
+            yield return new WaitForSeconds(.1f);
+        }
+    }
 }