feat: Upgraded Engine to BehaviourCachers

Game/GamePong.cs

@@ -17,21 +17,19 @@ namespace Pong;
 public class GamePong : Game
 {
     public static GraphicsDeviceManager graphics = null!;
-    public static IPhysicsEngine2D engine = null!;
+    public static IPhysicsEngine2D physicsEngine = null!;
     public static SpriteBatch spriteBatch = null!;
     public static ShapeBatch shapeBatch = null!;
     public static GameManager gameManager = null!;
 
+    private BehaviourCacher<IDisplayable> displayableCacher = null!;
+    private BehaviourCacher<IDisplayableShape> displayableShapeCacher = null!;
+
     private MonoGameCameraBehaviour cameraBehaviour = null!;
     private PongManager pongManager = null!;
 
     public GamePong()
     {
-        engine = new PhysicsEngine2D
-        {
-            IterationCount = 3
-        };
-
         graphics = new GraphicsDeviceManager(this)
         {
             PreferredBackBufferWidth = 1024,
@@ -45,9 +43,12 @@ public class GamePong : Game
 
     protected override void Initialize()
     {
-        gameManager = new();
-
         // TODO: Add your initialization logic here
+        gameManager = new();
+        displayableCacher = new(gameManager);
+        displayableShapeCacher = new(gameManager);
+        physicsEngine = new PhysicsEngine2DCacher(gameManager) { IterationCount = 3 };
+
         gameManager.Initialize();
 
         base.Initialize();
@@ -76,9 +77,8 @@ public class GamePong : Game
         gameObjectBall.Transform.SetTransform(position: new Vector2D(0, 0f), scale: new Vector2D(10f, 10f));
 
         gameObjectBall.BehaviourController.AddBehaviour<CircleBehaviour>(new Circle(Vector2D.Zero, 1f));
-        PongBall ballBehaviour = gameObjectBall.BehaviourController.AddBehaviour<PongBall>();
+        gameObjectBall.BehaviourController.AddBehaviour<PongBall>();
-        RigidBody2D rigidBodyBall = gameObjectBall.BehaviourController.AddBehaviour<RigidBody2D>();
+        gameObjectBall.BehaviourController.AddBehaviour<RigidBody2D>();
-        engine.AddRigidBody(rigidBodyBall);
 
         ////////////////////////////////////////////////////////////////////////////////////
 
@@ -89,7 +89,6 @@ public class GamePong : Game
         gameObjectLeftPaddle.BehaviourController.AddBehaviour<ShapeBehaviour>(Shape.Box);
         RigidBody2D rigidBodyLeftPaddle = gameObjectLeftPaddle.BehaviourController.AddBehaviour<RigidBody2D>();
         rigidBodyLeftPaddle.IsStatic = true;
-        engine.AddRigidBody(rigidBodyLeftPaddle);
 
         IGameObject gameObjectRightPaddle = gameManager.InstantiateGameObject<GameObject>().SetGameObject("Right Paddle");
         gameObjectRightPaddle.Transform.SetTransform(position: new Vector2D(468f, 0f), scale: new Vector2D(15f, 60f));
@@ -97,7 +96,6 @@ public class GamePong : Game
         gameObjectRightPaddle.BehaviourController.AddBehaviour<ShapeBehaviour>(Shape.Box);
         RigidBody2D rigidBodyRightPaddle = gameObjectRightPaddle.BehaviourController.AddBehaviour<RigidBody2D>();
         rigidBodyRightPaddle.IsStatic = true;
-        engine.AddRigidBody(rigidBodyRightPaddle);
 
         ////////////////////////////////////////////////////////////////////////////////////
 
@@ -106,14 +104,12 @@ public class GamePong : Game
         gameObjectWallTop.BehaviourController.AddBehaviour<ShapeBehaviour>(Shape.Box);
         RigidBody2D rigidBodyWallTop = gameObjectWallTop.BehaviourController.AddBehaviour<RigidBody2D>();
         rigidBodyWallTop.IsStatic = true;
-        engine.AddRigidBody(rigidBodyWallTop);
 
         IGameObject gameObjectWallBottom = gameManager.InstantiateGameObject<GameObject>().SetGameObject("Wall Bottom");
         gameObjectWallBottom.Transform.SetTransform(position: new Vector2D(0f, -308f), scale: new Vector2D(552f, 20f));
         gameObjectWallBottom.BehaviourController.AddBehaviour<ShapeBehaviour>(Shape.Box);
         RigidBody2D rigidBodyWallBottom = gameObjectWallBottom.BehaviourController.AddBehaviour<RigidBody2D>();
         rigidBodyWallBottom.IsStatic = true;
-        engine.AddRigidBody(rigidBodyWallBottom);
 
         IGameObject gameObjectWallRight = gameManager.InstantiateGameObject<GameObject>().SetGameObject("Wall Right");
         gameObjectWallRight.Transform.SetTransform(position: new Vector2D(532f, 0f), scale: new Vector2D(20f, 328f));
@@ -121,7 +117,6 @@ public class GamePong : Game
         gameObjectWallRight.BehaviourController.AddBehaviour<ShapeBehaviour>(Shape.Box);
         RigidBody2D rigidBodyWallRight = gameObjectWallRight.BehaviourController.AddBehaviour<RigidBody2D>();
         rigidBodyWallRight.IsStatic = true;
-        engine.AddRigidBody(rigidBodyWallRight);
 
         IGameObject gameObjectWallLeft = gameManager.InstantiateGameObject<GameObject>().SetGameObject("Wall Left");
         gameObjectWallLeft.Transform.SetTransform(position: new Vector2D(-532f, 0f), scale: new Vector2D(20f, 328f));
@@ -129,7 +124,6 @@ public class GamePong : Game
         gameObjectWallLeft.BehaviourController.AddBehaviour<ShapeBehaviour>(Shape.Box);
         RigidBody2D rigidBodyWallLeft = gameObjectWallLeft.BehaviourController.AddBehaviour<RigidBody2D>();
         rigidBodyWallLeft.IsStatic = true;
-        engine.AddRigidBody(rigidBodyWallLeft);
 
         ////////////////////////////////////////////////////////////////////////////////////
 
@@ -155,7 +149,7 @@ public class GamePong : Game
         while (physicsTimer + 0.01f < gameTime.TotalGameTime.TotalMilliseconds * .001f)//seconds)
         {
             physicsTimer += 0.01f;
-            engine.Step(.01f);
+            physicsEngine.Step(.01f);
         }
         base.Update(gameTime);
     }
@@ -169,14 +163,12 @@ public class GamePong : Game
         gameManager.PreDraw();
 
         spriteBatch.Begin(SpriteSortMode.Deferred, transformMatrix: cameraBehaviour.MatrixTransform);
-        foreach (IGameObject gameObject in gameManager)
+        foreach (var displayable in displayableCacher)
-            foreach (var displayable in gameObject.BehaviourController.GetBehaviours<IDisplayable>())
             displayable.Draw(spriteBatch);
         spriteBatch.End();
 
         shapeBatch.Begin(cameraBehaviour.MatrixTransform);
-        foreach (IGameObject gameObject in gameManager)
+        foreach (var displayableShape in displayableShapeCacher)
-            foreach (var displayableShape in gameObject.BehaviourController.GetBehaviours<IDisplayableShape>())
             displayableShape.Draw(shapeBatch);
         shapeBatch.End();