From a9054b3be4fc7d913a23f1c7a16f3b07c97f829f Mon Sep 17 00:00:00 2001
From: Syed Daanish <me@syedm.dev>
Date: Tue, 14 Jul 2026 13:07:13 +0100
Subject: [PATCH] Cleanup

---
 flake.nix              | 23 +++++++++++++++--------
 include/app/elements.h |  4 ++--
 include/ecs/ecs.h      |  8 ++++++--
 samples/button.rb      |  8 +++++++-
 src/app/app.cc         |  2 +-
 5 files changed, 31 insertions(+), 14 deletions(-)

diff --git a/flake.nix b/flake.nix
index 630d761..a2fe280 100644
--- a/flake.nix
+++ b/flake.nix
@@ -1,20 +1,27 @@
 {
-  description = "game";
+  description = "game engine";
 
   inputs = {
     nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
   };
 
-  outputs = { self, nixpkgs }:
+  outputs =
+    { self, nixpkgs }:
     let
       systems = [ "x86_64-linux" ];
 
-      forAllSystems = f:
-        nixpkgs.lib.genAttrs systems (system:
-          f (import nixpkgs {
-            inherit system;
-          }));
-    in {
+      forAllSystems =
+        f:
+        nixpkgs.lib.genAttrs systems (
+          system:
+          f (
+            import nixpkgs {
+              inherit system;
+            }
+          )
+        );
+    in
+    {
       devShells = forAllSystems (pkgs: {
         default = pkgs.mkShell {
           packages = with pkgs; [
diff --git a/include/app/elements.h b/include/app/elements.h
index bb7b5c5..9188c2a 100644
--- a/include/app/elements.h
+++ b/include/app/elements.h
@@ -73,8 +73,8 @@ private:
 };
 
 struct ERect : Element {
-  Color color = {255, 255, 255};
   Vec2<float> shape = {0, 0};
+  Color color = {255, 255, 255};
 
   Vec2<float> size() override;
 
@@ -97,4 +97,4 @@ struct EWorld : Element {
 inline Pool<Element> element_pool;
 } // namespace app
 
-#endif
\ No newline at end of file
+#endif
diff --git a/include/ecs/ecs.h b/include/ecs/ecs.h
index 751a44c..136e3b6 100644
--- a/include/ecs/ecs.h
+++ b/include/ecs/ecs.h
@@ -3,8 +3,12 @@
 
 #include "utils.h"
 
-struct Entity;
+struct Entity {};
 struct Component;
 struct System;
 
-#endif
\ No newline at end of file
+struct EntityPool {
+  Entity entities[];
+};
+
+#endif
diff --git a/samples/button.rb b/samples/button.rb
index 7996b7e..2f43e5e 100644
--- a/samples/button.rb
+++ b/samples/button.rb
@@ -58,12 +58,18 @@ rect.click do
 end
 
 App.map_key :mouse_left, :action_name
+App.map_key :q, :quit
 
 start = Time.now
 c_ = 0.0
 c_c = 0
 
 App.update do |delta_time|
+  if App.pressed?(:quit)
+    App.exit!
+    next
+  end
+
   c_ += delta_time
   c_c += 1
 
@@ -114,4 +120,4 @@ p "Average delta time: #{c_ / c_c}s"
 p "Average FPS (real): #{c_c / time}s"
 p "Average FPS (from dt): #{c_c / c_}"
 p "Time since start (real): #{time}s"
-p "Time since start (from dt): #{c_}s"
\ No newline at end of file
+p "Time since start (from dt): #{c_}s"
diff --git a/src/app/app.cc b/src/app/app.cc
index 56add03..2fbca29 100644
--- a/src/app/app.cc
+++ b/src/app/app.cc
@@ -108,4 +108,4 @@ void App::loop() {
     window.clear();
   }
 }
-} // namespace app
\ No newline at end of file
+} // namespace app