the enemy can now scale to the resolution.

i made a BasePaddle class so i can put commonly used fields in a base class. this means i made a new plugin called CustomTypes which contains both Base classes.

Scenes/Objects/Ball.tscn

@@ -1,4 +1,4 @@
-[gd_scene load_steps=4 format=3]
+[gd_scene load_steps=4 format=3 uid="uid://dts6gwgqbre22"]
 
 [ext_resource type="Script" path="res://Scripts/Objects/Ball.cs" id="1_474si"]
 

Scenes/Objects/Enemy.tscn

@@ -1,4 +1,4 @@
-[gd_scene load_steps=5 format=3]
+[gd_scene load_steps=5 format=3 uid="uid://ch0fhyeawosrh"]
 
 [ext_resource type="PhysicsMaterial" uid="uid://e05n66x8ug77" path="res://Resources/BouncyMaterial.tres" id="1_e3kk5"]
 [ext_resource type="Script" path="res://Scripts/Objects/Enemy.cs" id="1_fbrtv"]

Scenes/Pong.tscn

@@ -1,12 +1,12 @@
 [gd_scene load_steps=8 format=3 uid="uid://bh3p1hnvsviu6"]
 
-[ext_resource type="PackedScene" path="res://Scenes/Objects/Paddle.tscn" id="1_5rs0o"]
+[ext_resource type="PackedScene" uid="uid://ijf4pw1wmb4t" 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"]
-[ext_resource type="PackedScene" path="res://Scenes/Objects/Ball.tscn" id="2_u2ksv"]
+[ext_resource type="PackedScene" uid="uid://dts6gwgqbre22" path="res://Scenes/Objects/Ball.tscn" id="2_u2ksv"]
 [ext_resource type="PackedScene" uid="uid://cmk6ierwi7sdt" path="res://Scenes/Objects/Walls.tscn" id="3_jfis7"]
-[ext_resource type="PackedScene" path="res://Scenes/Objects/Enemy.tscn" id="4_uwvof"]
+[ext_resource type="PackedScene" uid="uid://ch0fhyeawosrh" path="res://Scenes/Objects/Enemy.tscn" id="4_uwvof"]
 
 [node name="Pong" type="Node2D"]
 script = ExtResource("1_ee533")
@@ -19,7 +19,7 @@ offset_bottom = 270.0
 
 [node name="Paddle" parent="." instance=ExtResource("1_5rs0o")]
 position = Vector2(-350, 0)
-_moveSpeed = 50.0
+MoveSpeed = 50.0
 
 [node name="Camera2D" type="Camera2D" parent="."]
 
@@ -31,7 +31,7 @@ _maxRandomAngle = 0.42
 
 [node name="Enemy" parent="." instance=ExtResource("4_uwvof")]
 position = Vector2(350, 0)
-_moveSpeed = 50.0
+MoveSpeed = 50.0
 
 [node name="ScalingManager" type="Node" parent="."]
 script = ExtResource("2_dc5sv")

Scripts/Data/DoubleExtensions.cs

@@ -0,0 +1,9 @@
+namespace Pong.Scripts.Data;
+
+public static class DoubleExtensions
+{
+	public static double ByMeter(this double num)
+	{
+		return num * Constants.Meter;
+	}
+}

Scripts/Managers/BasePaddle.cs

@@ -0,0 +1,19 @@
+namespace Pong.Scripts.Managers;
+
+public partial class BasePaddle: RigidBody2D
+{
+	[Export] protected double MoveSpeed;
+	
+	protected ScalingManager ScalingManager;
+	protected Vector2? NewPosition;
+
+	public override void _EnterTree()
+	{
+		ScalingManager = GetNode<ScalingManager>("../ScalingManager");
+	}
+
+	protected void SetNewPosition(Vector2 newPosition)
+	{
+		NewPosition = newPosition;
+	}
+}

Scripts/Managers/ScalingManager.cs

@@ -19,9 +19,9 @@ public partial class ScalingManager : Node
 	private Vector2I _gameResolution;
 	private GameArea _gameArea;
 
-	public event EventHandler<Vector2> NewPaddlePosition;
-	public event EventHandler<Vector2> NewEnemyPosition;
-	public event EventHandler<Vector2> NewBallPosition;
+	public event Action<Vector2> NewPaddlePosition;
+	public event Action<Vector2> NewEnemyPosition;
+	public event Action<Vector2> NewBallPosition;
 
 	public override void _EnterTree()
 	{
@@ -68,6 +68,7 @@ public partial class ScalingManager : Node
 		SetWallPosition();
 		SetScorePosition();
 		SetPaddlePosition(normalizedPaddlePosition);
+		SetEnemyPosition(normalizedEnemyPosition);
 	}
 
 	/// <summary>
@@ -105,18 +106,22 @@ public partial class ScalingManager : Node
 	private void SetPaddlePosition(Vector2 normalizedPosition)
 	{
 		var newPaddlePos = _gameArea.GlobalizePosition(normalizedPosition with { X = 0 }) + new Vector2(48, 0);
-		NewPaddlePosition?.Invoke(this, newPaddlePos);
+		NewPaddlePosition?.Invoke(newPaddlePos);
 	}
 
 	private void SetEnemyPosition(Vector2 normalizedPosition)
 	{
-		var newEnemyPos = _gameArea.GlobalizePosition(normalizedPosition with {X = 0}) + new Vector2(48,0);
-		NewEnemyPosition?.Invoke(this, newEnemyPos);
+		var newEnemyPos = _gameArea.GlobalizePosition(normalizedPosition with { X = 1 }) + new Vector2(-48, 0);
+		NewEnemyPosition?.Invoke(newEnemyPos);
 	}
 
 	private void SetBallPosition(Vector2 normalizedPosition)
 	{
 		var newBallPos = _gameArea.GlobalizePosition(normalizedPosition);
-		NewBallPosition?.Invoke(this, newBallPos);
+		NewBallPosition?.Invoke(newBallPos);
+	}
+
+	public static void SetNewPosition(ref Vector2 newPositionField)
+	{
 	}
 }

Scripts/Objects/Enemy.cs

@@ -1,29 +1,32 @@
 using System;
 using System.Collections.Generic;
 using Godot.Collections;
+using Pong.Scripts.Data;
+using Pong.Scripts.Managers;
 
 namespace Pong.Scripts.Objects;
 
-public partial class Enemy : RigidBody2D
+public partial class Enemy : BasePaddle
 {
 	/// <summary>
 	/// draw shapes to the screen (like <see cref="_scanArea"/>).
 	/// </summary>
 	[Export] private bool _drawDebugShapes;
-	[Export] private double _moveSpeed;
 
 	private CollisionShape2D _collisionShape;
 	private Rect2 _scanArea;
-	
+
 	private PhysicsDirectSpaceState2D _spaceState;
 	private readonly Variant _collider = "collider";
 	private PhysicsShapeQueryParameters2D _query;
 
-	public override void _Ready()
+	public override void _EnterTree()
 	{
+		base._EnterTree();
+		ScalingManager.NewEnemyPosition += SetNewPosition;
 		_collisionShape = GetNode<CollisionShape2D>("CollisionShape2D");
 		GenerateCastArea();
-		
+
 		_spaceState = GetWorld2D().DirectSpaceState;
 		_query = new PhysicsShapeQueryParameters2D
 		{
@@ -34,7 +37,17 @@ public partial class Enemy : RigidBody2D
 
 	public override void _PhysicsProcess(double delta)
 	{
-		Scan(delta);
+	}
+
+	public override void _IntegrateForces(PhysicsDirectBodyState2D state)
+	{
+		if (NewPosition.HasValue)
+		{
+			state.Transform = new Transform2D(0, NewPosition.Value);
+			NewPosition = null;
+		}
+		
+		Scan(GetPhysicsProcessDeltaTime(), state);
 	}
 
 	public override void _Draw()
@@ -43,7 +56,7 @@ public partial class Enemy : RigidBody2D
 		DrawRect(_scanArea, Colors.Aqua);
 	}
 
-	private void Scan(double delta)
+	private void Scan(double delta, PhysicsDirectBodyState2D state)
 	{
 		var result = _spaceState.IntersectShape(_query);
 
@@ -53,27 +66,28 @@ public partial class Enemy : RigidBody2D
 			return;
 		}
 
-		TrackBall(delta, result);
+		TrackBall(delta, result, state);
 	}
 
 	/// <summary>
 	/// track the distance between the ball and the enemy paddle on the y axis and move velocity accordingly.
 	/// </summary>
 	/// <param name="delta">how long it took to complete the last frame in seconds. this should be constant as
-	/// should be executed in the physics process method which should be separate from the main frame rate.</param>
+	///     should be executed in the physics process method which should be separate from the main frame rate.</param>
 	/// <param name="result">a dictionary of objects that collided with the cast. this method only works if
-	/// theres an object that has the Ball class.</param>
-	private void TrackBall(double delta, IReadOnlyList<Dictionary> result)
+	///     theres an object that has the Ball class.</param>
+	/// <param name="state"></param>
+	private void TrackBall(double delta, IReadOnlyList<Dictionary> result, PhysicsDirectBodyState2D state)
 	{
 		// checks if the collider is a ball, if not, return.
 		if (result[0][_collider].As<Ball>() is not { } ball) return;
 
 		// gets the sign of the distance between the ball and the paddle on the y axis
 		var normalisedDistance = new Vector2 { Y = Mathf.Sign(ball.Position.Y - Position.Y) };
-		var linearVelocity = normalisedDistance * _moveSpeed * Constants.Meter;
+		var linearVelocity = normalisedDistance * MoveSpeed.ByMeter();
 
 		// lerp the velocity to smooth out jerky movement.
-		LinearVelocity = LinearVelocity.Lerp(linearVelocity, delta);
+		state.LinearVelocity = LinearVelocity.Lerp(linearVelocity, delta);
 	}
 
 	/// <summary>

Scripts/Objects/Paddle.cs

@@ -1,30 +1,21 @@
+using Pong.Scripts.Data;
 using Pong.Scripts.Managers;
 
 namespace Pong.Scripts.Objects;
 
-public partial class Paddle : RigidBody2D
+public partial class Paddle : BasePaddle
 {
-	[Export] private double _moveSpeed;
-
 	private double _verticalInput;
 	private readonly StringName _paddleUp = "paddle_up";
 	private readonly StringName _paddleDown = "paddle_down";
-	private ScalingManager _scalingManager;
 
 	private bool _canMove = true;
 	private Vector2 _originalPosition;
 
-	private Vector2? _newPosition;
-
-	/// <summary>
-	/// property that multiples the moveSpeed by the <see cref="Constants.Meter">Meter</see> constant.
-	/// </summary>
-	private double MoveSpeed => _moveSpeed * Constants.Meter;
-
 	public override void _EnterTree()
 	{
-		_scalingManager = GetNode<ScalingManager>("../ScalingManager");
-		_scalingManager.NewPaddlePosition += (_, vector2) => _newPosition = vector2;
+		base._EnterTree();
+		ScalingManager.NewPaddlePosition += SetNewPosition;
 	}
 
 	public override void _Process(double delta)
@@ -34,13 +25,13 @@ public partial class Paddle : RigidBody2D
 
 	public override void _IntegrateForces(PhysicsDirectBodyState2D state)
 	{
-		if (_newPosition.HasValue)
+		if (NewPosition.HasValue)
 		{
-			state.Transform = new Transform2D(0, _newPosition.Value);
-			_newPosition = null;
+			state.Transform = new Transform2D(0, NewPosition.Value);
+			NewPosition = null;
 		}
 
-		state.LinearVelocity = Vector2.Up * MoveSpeed * _verticalInput;
+		state.LinearVelocity = Vector2.Up * MoveSpeed.ByMeter() * _verticalInput;
 	}
 
 	/// <summary>

addons/BaseMenu/BaseMenu.cs

@@ -1,20 +0,0 @@
-#if TOOLS
-using Godot;
-
-namespace Pong.addons.BaseMenu;
-
-[Tool]
-public partial class BaseMenu : EditorPlugin
-{
-	public override void _EnterTree()
-	{
-		var baseMenuScript = GD.Load<Script>("res://Scripts/Managers/UI/BaseMenu.cs");
-		AddCustomType("BaseMenu", "VBoxContainer", baseMenuScript, GetEditorIcon("VBoxContainer"));
-	}
-
-	private Texture2D GetEditorIcon(string iconName)
-	{
-		return GetEditorInterface().GetBaseControl().GetThemeIcon(iconName, "EditorIcons");
-	}
-}
-#endif

addons/CustomTypes/Plugin.cs

@@ -0,0 +1,28 @@
+#if TOOLS
+namespace Pong.addons.CustomTypes
+{
+	[Tool]
+	public partial class Plugin : EditorPlugin
+	{
+		public override void _EnterTree()
+		{
+			var baseMenuScript = GD.Load<Script>("res://Scripts/Managers/UI/BaseMenu.cs");
+			var basePaddleScript = GD.Load<Script>("res://Scripts/Managers/BasePaddle.cs");
+			
+			AddCustomType("BaseMenu", "VBoxContainer", baseMenuScript, GetEditorIcon("VBoxContainer"));
+			AddCustomType("BasePaddle", "RigidBody2D", basePaddleScript, GetEditorIcon("RigidBody2D"));
+		}
+
+		public override void _ExitTree()
+		{
+			RemoveCustomType("BaseMenu");
+			RemoveCustomType("BasePaddle");
+		}
+
+		private Texture2D GetEditorIcon(string iconName)
+		{
+			return GetEditorInterface().GetBaseControl().GetThemeIcon(iconName, "EditorIcons");
+		}
+	}
+}
+#endif

addons/CustomTypes/plugin.cfg

@@ -1,7 +1,7 @@
 [plugin]
 
-name="BaseMenu"
+name="CustomTypes"
 description=""
 author="Fries"
 version=""
-script="BaseMenu.cs"
+script="Plugin.cs"

project.godot

@@ -35,7 +35,7 @@ version_control/autoload_on_startup=true
 
 [editor_plugins]
 
-enabled=PackedStringArray("res://addons/BaseMenu/plugin.cfg")
+enabled=PackedStringArray("res://addons/CustomTypes/plugin.cfg")
 
 [input]