From 9853e0af365a3ba78116f7489f53f92e2256a40c Mon Sep 17 00:00:00 2001
From: Syntriax <syntriax@gmail.com>
Date: Tue, 30 Jan 2024 12:08:21 +0300
Subject: [PATCH] feat: IGameManager

---
 Engine.Core/Abstract/IGameManager.cs | 21 +++++++++++++++++++++
 Engine.Core/GameManager.cs           |  9 ++++++---
 2 files changed, 27 insertions(+), 3 deletions(-)
 create mode 100644 Engine.Core/Abstract/IGameManager.cs

diff --git a/Engine.Core/Abstract/IGameManager.cs b/Engine.Core/Abstract/IGameManager.cs
new file mode 100644
index 0000000..6909fb2
--- /dev/null
+++ b/Engine.Core/Abstract/IGameManager.cs
@@ -0,0 +1,21 @@
+using System;
+using System.Collections.Generic;
+
+namespace Syntriax.Engine.Core.Abstract;
+
+public interface IGameManager : IEntity, IEnumerable<IGameObject>
+{
+    Action<GameManager, IGameObject>? OnGameObjectRegistered { get; set; }
+    Action<GameManager, IGameObject>? OnGameObjectUnRegistered { get; set; }
+
+
+    IReadOnlyList<IGameObject> GameObjects { get; }
+
+
+    void RegisterGameObject(IGameObject gameObject);
+    T InstantiateGameObject<T>(params object?[]? args) where T : class, IGameObject;
+    IGameObject RemoveGameObject(IGameObject gameObject);
+
+    void Update(EngineTime time);
+    void PreDraw();
+}
diff --git a/Engine.Core/GameManager.cs b/Engine.Core/GameManager.cs
index 5d24d65..be303a3 100644
--- a/Engine.Core/GameManager.cs
+++ b/Engine.Core/GameManager.cs
@@ -9,7 +9,7 @@ using Syntriax.Engine.Core.Factory;
 namespace Syntriax.Engine.Core;
 
 [System.Diagnostics.DebuggerDisplay("GameObject Count: {_gameObjects.Count}")]
-public class GameManager : IEntity, IEnumerable<IGameObject>
+public class GameManager : IGameManager
 {
     public Action<GameManager>? OnCameraChanged { get; set; } = null;
     public Action<GameManager, IGameObject>? OnGameObjectRegistered { get; set; } = null;
@@ -21,7 +21,7 @@ public class GameManager : IEntity, IEnumerable<IGameObject>
     public Action<IAssignableStateEnable>? OnStateEnableAssigned { get; set; } = null;
 
 
-    private IList<IGameObject> _gameObjects = new List<IGameObject>(Constants.GAME_OBJECTS_SIZE_INITIAL);
+    private readonly List<IGameObject> _gameObjects = new(Constants.GAME_OBJECTS_SIZE_INITIAL);
 
     private IStateEnable _stateEnable = null!;
     private GameObjectFactory _gameObjectFactory = null!;
@@ -39,7 +39,8 @@ public class GameManager : IEntity, IEnumerable<IGameObject>
     }
 
     public bool Initialized => _initialized;
-    public IList<IGameObject> GameObjects => _gameObjects;
+    public IReadOnlyList<IGameObject> GameObjects => _gameObjects;
+
     public IStateEnable StateEnable
     {
         get
@@ -102,6 +103,7 @@ public class GameManager : IEntity, IEnumerable<IGameObject>
         foreach (var gameObject in GameObjects)
             gameObject.Initialize();
 
+        _initialized = true;
         OnInitialized?.Invoke(this);
         return true;
     }
@@ -115,6 +117,7 @@ public class GameManager : IEntity, IEnumerable<IGameObject>
             GameObjects[i].Finalize();
 
         OnFinalized?.Invoke(this);
+        _initialized = false;
         return true;
     }