add an .editorconfig.

and i also added some events for when i want the ball and enemy paddle to move.

.editorconfig

@@ -0,0 +1,4 @@
+[*]
+end_of_line = lf
+insert_final_newline = true
+indent_style = tab

Scenes/Pong.tscn

@@ -1,6 +1,6 @@
 [gd_scene load_steps=8 format=3 uid="uid://bh3p1hnvsviu6"]
 
-[ext_resource type="PackedScene" uid="uid://ijf4pw1wmb4t" path="res://Scenes/Objects/Paddle.tscn" id="1_5rs0o"]
+[ext_resource type="PackedScene" path="res://Scenes/Objects/Paddle.tscn" id="1_5rs0o"]
 [ext_resource type="Script" path="res://Scripts/Managers/PongSceneManager.cs" id="1_ee533"]
 [ext_resource type="Script" path="res://Scripts/Managers/ScalingManager.cs" id="2_dc5sv"]
 [ext_resource type="PackedScene" uid="uid://clsmrwvyrt7av" path="res://Scenes/UI/Score.tscn" id="2_f3jwj"]
@@ -11,9 +11,6 @@
 [node name="Pong" type="Node2D"]
 script = ExtResource("1_ee533")
 
-[node name="ScalingManager" type="Node" parent="."]
-script = ExtResource("2_dc5sv")
-
 [node name="Score" parent="." instance=ExtResource("2_f3jwj")]
 offset_left = -370.0
 offset_top = -270.0
@@ -35,3 +32,6 @@ _maxRandomAngle = 0.42
 [node name="Enemy" parent="." instance=ExtResource("4_uwvof")]
 position = Vector2(350, 0)
 _moveSpeed = 50.0
+
+[node name="ScalingManager" type="Node" parent="."]
+script = ExtResource("2_dc5sv")

Scripts/Constants.cs

@@ -11,7 +11,7 @@ public static class Constants
 	/// the pixel size of either the vertical or the horizontal size of the walls.
 	/// </summary>
 	public const long WallSize = 30;
-	
+
 	/// <summary>
 	/// the extents (half of the size) of the pixel size of either the width for the vertical walls,
 	/// or the height for the horizontal walls.

Scripts/Data/GameArea.cs

@@ -1,6 +1,9 @@
 namespace Pong.Scripts.Data;
 
-public record GameArea
+/// <summary>
+/// a record class that represents the game area.
+/// </summary>
+public record class GameArea
 {
 	/// <summary>
 	/// the X coordinate of the GameArea wrapped in a struct that makes operating on it easier. this is divided
@@ -14,6 +17,10 @@ public record GameArea
 	/// </summary>
 	public GameCoordinate Y { get; }
 
+	/// <summary>
+	/// take a global position inside the game area and normalize it to a value between 0 and 1 which represents the game area.
+	/// </summary>
+	/// <param name="globalPosition">a Vector2 containing a global position inside the game area.</param>
 	public Vector2 NormalizePosition(Vector2 globalPosition)
 	{
 		var normalizedX = Mathf.InverseLerp(-X.ByWallSizeExtents, X.ByWallSizeExtents, globalPosition.X);
@@ -22,6 +29,10 @@ public record GameArea
 	}
 
 
+	/// <summary>
+	/// take a normalized position and convert it back into a globalized position.
+	/// </summary>
+	/// <param name="normalizedPosition">a Vector2 containing a normalized position.</param>
 	public Vector2 GlobalizePosition(Vector2 normalizedPosition)
 	{
 		var globalizedX = Mathf.Lerp(-X.ByWallSizeExtents, X.ByWallSizeExtents, normalizedPosition.X);

Scripts/Managers/ScalingManager.cs

@@ -20,6 +20,8 @@ public partial class ScalingManager : Node
 	private GameArea _gameArea;
 
 	public event EventHandler<Vector2> NewPaddlePosition;
+	public event EventHandler<Vector2> NewEnemyPosition;
+	public event EventHandler<Vector2> NewBallPosition;
 
 	public override void _EnterTree()
 	{
@@ -57,6 +59,9 @@ public partial class ScalingManager : Node
 	{
 		var normalizedPaddlePosition =
 			_gameArea?.NormalizePosition(_paddle.Position) ?? new Vector2(0, 0.5);
+		var normalizedEnemyPosition = _gameArea?.NormalizePosition(_enemy.Position) ?? new Vector2(1, 0.5);
+		var normalizedBallPosition = _gameArea?.NormalizePosition(_ball.Position) ?? new Vector2(0, 0);
+
 		_gameResolution = DisplayServer.WindowGetSize();
 		_gameArea = new GameArea(_gameResolution);
 
@@ -94,9 +99,24 @@ public partial class ScalingManager : Node
 		_score.Size = new Vector2(_gameResolution.X - 60, _gameResolution.Y - 60);
 	}
 
+	/// <summary>
+	/// set the paddle position to a normalized position that gets globalized. the paddle gets the new position with an event.
+	/// </summary>
 	private void SetPaddlePosition(Vector2 normalizedPosition)
 	{
-		var newPaddlePos = _gameArea.GlobalizePosition(normalizedPosition with { X = 0 }) + new Vector2(24, 0);
+		var newPaddlePos = _gameArea.GlobalizePosition(normalizedPosition with { X = 0 }) + new Vector2(48, 0);
 		NewPaddlePosition?.Invoke(this, newPaddlePos);
 	}
+
+	private void SetEnemyPosition(Vector2 normalizedPosition)
+	{
+		var newEnemyPos = _gameArea.GlobalizePosition(normalizedPosition with {X = 0}) + new Vector2(48,0);
+		NewEnemyPosition?.Invoke(this, newEnemyPos);
+	}
+
+	private void SetBallPosition(Vector2 normalizedPosition)
+	{
+		var newBallPos = _gameArea.GlobalizePosition(normalizedPosition);
+		NewBallPosition?.Invoke(this, newBallPos);
+	}
 }

Scripts/Objects/Paddle.cs

@@ -23,8 +23,6 @@ public partial class Paddle : RigidBody2D
 
 	public override void _EnterTree()
 	{
-		SetNotifyTransform(true);
-		SetNotifyLocalTransform(true);
 		_scalingManager = GetNode<ScalingManager>("../ScalingManager");
 		_scalingManager.NewPaddlePosition += (_, vector2) => _newPosition = vector2;
 	}