Add damage system and processing system to enemy

Assets/Scripts/Components/ProcessHitComponent.cs

@@ -0,0 +1,24 @@
+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+using UnityEngine.Events;
+
+public class ProcessHitComponent : MonoBehaviour
+{
+    private HashSet<GameObject> ignored = new HashSet<GameObject>();
+
+    public UnityEvent<int> onTakeDamage;
+
+    public void Process(OnHitEvent.Args args)
+    {
+        var source = args.source;
+
+        if (ignored.Contains(source)) return;
+
+        Debug.Log("Got hit");
+
+        onTakeDamage.Invoke(args.damage.value);
+
+        ignored.Add(args.source);
+    }
+}