From 161a166141e98592c85b01d5c1d541102a45bae0 Mon Sep 17 00:00:00 2001
From: Daniel <danwip@hotmail.com>
Date: Sun, 7 Sep 2025 09:54:18 +0200
Subject: [PATCH] continuation of implementing ECS

---
 src/EngineSharp.Core/EngineSharp.Core/ECS/Entity.cs  | 11 +++++++++++
 .../EngineSharp.Core/ECS/GameObject.cs               | 12 ------------
 .../EngineSharp.Core/ECS/LogicComponent.cs           | 11 +++++++++++
 3 files changed, 22 insertions(+), 12 deletions(-)
 create mode 100644 src/EngineSharp.Core/EngineSharp.Core/ECS/Entity.cs
 delete mode 100644 src/EngineSharp.Core/EngineSharp.Core/ECS/GameObject.cs
 create mode 100644 src/EngineSharp.Core/EngineSharp.Core/ECS/LogicComponent.cs

diff --git a/src/EngineSharp.Core/EngineSharp.Core/ECS/Entity.cs b/src/EngineSharp.Core/EngineSharp.Core/ECS/Entity.cs
new file mode 100644
index 0000000..3d12846
--- /dev/null
+++ b/src/EngineSharp.Core/EngineSharp.Core/ECS/Entity.cs
@@ -0,0 +1,11 @@
+namespace EngineSharp.Core.ECS;
+
+// Maybe look at this C# ECS to get an idea of how to implement one myself
+// https://github.com/friflo/Friflo.Engine.ECS/tree/main
+
+public struct Entity
+{
+    public readonly long Id;
+    
+    private List<LogicComponent> _logicComponents;
+}
\ No newline at end of file
diff --git a/src/EngineSharp.Core/EngineSharp.Core/ECS/GameObject.cs b/src/EngineSharp.Core/EngineSharp.Core/ECS/GameObject.cs
deleted file mode 100644
index b8dfa71..0000000
--- a/src/EngineSharp.Core/EngineSharp.Core/ECS/GameObject.cs
+++ /dev/null
@@ -1,12 +0,0 @@
-namespace EngineSharp.Core.ECS;
-
-// TODO: A GameObject would have a list of Components. A GameObject is basically what will be stored in the scene graph and all components of all GameObjects will have their Update methods etc. be called
-
-// Maybe look at this C# ECS to get an idea of how to implement one myself
-// https://github.com/friflo/Friflo.Engine.ECS/tree/main
-public abstract class GameObject
-{
-    private long Id { get; set; }
-    
-    public abstract void OnUpdate(double deltaTime);
-}
\ No newline at end of file
diff --git a/src/EngineSharp.Core/EngineSharp.Core/ECS/LogicComponent.cs b/src/EngineSharp.Core/EngineSharp.Core/ECS/LogicComponent.cs
new file mode 100644
index 0000000..7439bde
--- /dev/null
+++ b/src/EngineSharp.Core/EngineSharp.Core/ECS/LogicComponent.cs
@@ -0,0 +1,11 @@
+namespace EngineSharp.Core.ECS;
+
+// TODO: A LogicComponent would have a list of Components. A LogicComponent is basically what will be stored in the scene graph and all components of all LogicComponents will have their Update methods etc. be called
+
+public abstract class LogicComponent
+{
+    internal Entity _entity; // the entity this component belongs to
+    
+    public abstract void Start();
+    public abstract void OnUpdate(double deltaTime);
+}
\ No newline at end of file