player health-bar now displays, player health is tracked.

Assets/EnemyHitPlayer.cs

@@ -0,0 +1,15 @@
+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+
+public class EnemyHitPlayer : MonoBehaviour {
+
+    private void OnCollisionEnter2D(Collision2D collision)
+    {
+        if (collision.gameObject.tag == "Player")
+        {
+            Events.HitPlayer.Invoke(1);
+        }
+    }
+
+}