basic movement

src/game/gamemanager.cpp

@@ -5,6 +5,7 @@ namespace Game {
     void GameManager::run(std::stop_token stopToken) {
         using namespace std::chrono_literals;
         LOG("GameManager thread started");
+        Object::Camera::getInstance().setPosition(0.f, 0.f); // Start with camera at (0, 0)
 
         mLastUpdate = clock::now(); // Get the update
 
@@ -18,11 +19,12 @@ namespace Game {
             const auto frameStart = std::chrono::steady_clock::now();
 
             try {
-                State::GameState::getInstance().withEntitiesLocked([seconds](auto& entities) {
-                    for (auto& entity : entities) {
+                auto entities = State::GameState::getInstance().getEntitiesSnapshot();
+                for (auto* entity : entities) {
+                    if (entity) {
                         entity->update(seconds);
                     }
-                });
+                }
             } catch (const std::exception& e) {
                 ERROR("Exception in GameManager thread: " << e.what());
             }