feat: GameObject Register Actions Added

Engine.Core/GameManager.cs

@@ -1,4 +1,5 @@
 using System;
+using System.Collections;
 using System.Collections.Generic;
 
 using Syntriax.Engine.Core.Abstract;
@@ -7,9 +8,12 @@ using Syntriax.Engine.Core.Factory;
 
 namespace Syntriax.Engine.Core;
 
-public class GameManager : IEntity
+public class GameManager : IEntity, IEnumerable<IGameObject>
 {
     public Action<GameManager>? OnCameraChanged { get; set; } = null;
+    public Action<GameManager, IGameObject>? OnGameObjectRegistered { get; set; } = null;
+    public Action<GameManager, IGameObject>? OnGameObjectUnRegistered { get; set; } = null;
+
     public Action<IInitialize>? OnInitialized { get; set; } = null;
     public Action<IInitialize>? OnFinalized { get; set; } = null;
     public Action<IAssignable>? OnUnassigned { get; set; } = null;
@@ -148,18 +152,20 @@ public class GameManager : IEntity
 
     /////////////////////////////////////////////////////////////////
 
-    private void Unregister(IGameObject gameObject)
-    {
-        gameObject.OnFinalized -= OnGameObjectFinalize;
-
-        _gameObjects.Remove(gameObject);
-    }
-
     private void Register(IGameObject gameObject)
     {
         gameObject.OnFinalized += OnGameObjectFinalize;
 
         _gameObjects.Add(gameObject);
+        OnGameObjectRegistered?.Invoke(this, gameObject);
+    }
+
+    private void Unregister(IGameObject gameObject)
+    {
+        gameObject.OnFinalized -= OnGameObjectFinalize;
+
+        _gameObjects.Remove(gameObject);
+        OnGameObjectUnRegistered?.Invoke(this, gameObject);
     }
 
     private void OnGameObjectFinalize(IInitialize initialize)
@@ -167,4 +173,9 @@ public class GameManager : IEntity
         if (initialize is IGameObject gameObject)
             Unregister(gameObject);
     }
+
+    /////////////////////////////////////////////////////////////////
+
+    public IEnumerator<IGameObject> GetEnumerator() => _gameObjects.GetEnumerator();
+    IEnumerator IEnumerable.GetEnumerator() => _gameObjects.GetEnumerator();
 }