From 4c53e5fee603f1308b1ca070b55e341f493f16b3 Mon Sep 17 00:00:00 2001
From: Syed Daanish <me@syedm.dev>
Date: Thu, 2 Jul 2026 13:09:11 +0100
Subject: [PATCH] Setup ecs system scaffolding

---
 include/app/elements.h | 14 +++++++++++++-
 include/ecs/ecs.h      | 10 ++++++++++
 writeup/analysis.md    |  2 ++
 3 files changed, 25 insertions(+), 1 deletion(-)
 create mode 100644 include/ecs/ecs.h

diff --git a/include/app/elements.h b/include/app/elements.h
index be40375..bb7b5c5 100644
--- a/include/app/elements.h
+++ b/include/app/elements.h
@@ -8,7 +8,8 @@
 
 enum Type { IMAGE,
             TEXT,
-            RECT };
+            RECT,
+            WORLD };
 
 enum ClickMode { PASS,
                  BLOCK,
@@ -82,6 +83,17 @@ struct ERect : Element {
   void render(uint64_t) override;
 };
 
+struct EWorld : Element {
+#warning need to implement ecs system first before implementing this
+  uint64_t world_id = UINT64_MAX;
+
+  EWorld(uint64_t world_id) : Element(Type::WORLD), world_id(world_id) {}
+
+  Vec2<float> size() override;
+
+  void render(uint64_t) override;
+};
+
 inline Pool<Element> element_pool;
 } // namespace app
 
diff --git a/include/ecs/ecs.h b/include/ecs/ecs.h
new file mode 100644
index 0000000..751a44c
--- /dev/null
+++ b/include/ecs/ecs.h
@@ -0,0 +1,10 @@
+#ifndef ECS_H
+#define ECS_H
+
+#include "utils.h"
+
+struct Entity;
+struct Component;
+struct System;
+
+#endif
\ No newline at end of file
diff --git a/writeup/analysis.md b/writeup/analysis.md
index e1e87c2..dee0d94 100644
--- a/writeup/analysis.md
+++ b/writeup/analysis.md
@@ -320,3 +320,5 @@ Requirements v1:
 - then specifics of what ill need to actually make this, like the libaries, languages & hardware ill use with reasons of why, can have a big section on stuff like explaining why i chose sdl3 for rendering, or mruby (mostly because of mruby precompiling and how i can prepack the engine into a single binary)
 
 - and finally a rigid list of requirements of things it should be doing by the end with 2 priority levels and this time just the list and not any justifications this time
+
+# REDO section on sdl3 and mruby again