From d3b871f2140aeb246589edbfd774aff08340eada Mon Sep 17 00:00:00 2001
From: HumanoidSandvichDispenser <humanoidsandvichdispenser@gmail.com>
Date: Sun, 15 Mar 2026 18:55:37 -0700
Subject: [PATCH] Add systems

---
 as6/Draw.hpp    |  4 +++-
 as6/Entity.hpp  |  2 ++
 as6/Systems.hpp | 12 +++++++++---
 as6/main.cpp    | 17 +++++++++++++----
 4 files changed, 27 insertions(+), 8 deletions(-)

diff --git a/as6/Draw.hpp b/as6/Draw.hpp
index e3b70bc..bc24d9d 100644
--- a/as6/Draw.hpp
+++ b/as6/Draw.hpp
@@ -1,6 +1,8 @@
 #pragma once
 
+#include "raylib-cpp.hpp"
+
 // placeholder for draw helpers
 void DrawSceneOutline() {
-
+    DrawRectangleLines(0, 0, GetScreenWidth(), GetScreenHeight(), raylib::Color::DarkGray());
 }
diff --git a/as6/Entity.hpp b/as6/Entity.hpp
index 1c40fba..672d490 100644
--- a/as6/Entity.hpp
+++ b/as6/Entity.hpp
@@ -1,5 +1,7 @@
 #pragma once
 
+#include <concepts>
+#include <functional>
 #include <memory>
 #include <optional>
 #include <vector>
diff --git a/as6/Systems.hpp b/as6/Systems.hpp
index ac87710..84ebd69 100644
--- a/as6/Systems.hpp
+++ b/as6/Systems.hpp
@@ -1,8 +1,14 @@
 #pragma once
 
-#include <vector>
 #include "Entity.hpp"
+#include <memory>
+#include <vector>
 
-void UpdateAllSystems(std::vector<Entity> &entities, float deltaTime) {
-
+void UpdateAllSystems(std::vector<std::shared_ptr<Entity>> &entities, float deltaTime) {
+    for (auto &entity : entities) {
+        if (!entity) {
+            continue;
+        }
+        entity->Update(deltaTime);
+    }
 }
diff --git a/as6/main.cpp b/as6/main.cpp
index f3de464..401607d 100644
--- a/as6/main.cpp
+++ b/as6/main.cpp
@@ -8,20 +8,29 @@
 
 int main() {
     raylib::Window window(700, 460, "Gravity Surfing");
+    window.SetState(FLAG_WINDOW_RESIZABLE);
     window.SetTargetFPS(60);
 
-    std::vector<Entity> entities;
+    std::vector<std::shared_ptr<Entity>> entities;
     entities.reserve(20);
 
-    auto &world = entities.emplace_back();
-    world.AddComponent<ScrollComponent>();
+    entities.push_back(CreateWorld());
+    entities.push_back(CreateGravityWell());
+    entities.push_back(CreateProbe());
+    entities.push_back(CreateHUD());
 
     while (!window.ShouldClose()) {
         float dt = window.GetFrameTime();
+
         UpdateAllSystems(entities, dt);
+
         window.BeginDrawing();
-        window.ClearBackground(raylib::Color::Black());
+        window.ClearBackground(raylib::Color(11, 15, 26, 255));
+
         DrawSceneOutline();
+
+        raylib::DrawText("Gravity Surfing", 14, 12, 20, raylib::Color::RayWhite());
+
         window.EndDrawing();
     }