Cleanup

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:
+      forAllSystems =
-        nixpkgs.lib.genAttrs systems (system:
+        f:
-          f (import nixpkgs {
+        nixpkgs.lib.genAttrs systems (
-            inherit system;
+          system:
-          }));
+          f (
-    in {
+            import nixpkgs {
+              inherit system;
+            }
+          )
+        );
+    in
+    {
       devShells = forAllSystems (pkgs: {
         default = pkgs.mkShell {
           packages = with pkgs; [

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
+#endif

include/ecs/ecs.h

@@ -3,8 +3,12 @@
 
 #include "utils.h"
 
-struct Entity;
+struct Entity {};
 struct Component;
 struct System;
 
-#endif
+struct EntityPool {
+  Entity entities[];
+};
+
+#endif

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"
+p "Time since start (from dt): #{c_}s"

src/app/app.cc

@@ -108,4 +108,4 @@ void App::loop() {
     window.clear();
   }
 }
-} // namespace app
+} // namespace app