Make bullets stop on walls

Assets/Scripts/Bullet.cs

@@ -20,7 +20,11 @@ public class Bullet : MonoBehaviour
 
   void OnTriggerEnter2D(Collider2D other)
   {
-    if (healingPoints > 0 && other.tag == "Player")
+    if (other.tag == "Obstacle")
+    {
+      Destroy(gameObject);
+    }
+    else if (healingPoints > 0 && other.tag == "Player")
     {
       other.GetComponent<PlayerHealth>().changeHealthBy(healingPoints);
       Destroy(gameObject);