add basic ah physicsworld

destrum/src/Scene/Scene.cpp

@@ -57,12 +57,13 @@ void Scene::Update() {
     }
 }
 
-void Scene::FixedUpdate() {
+void Scene::FixedUpdate(float dt) {
     for (const auto& object: m_objects) {
         if (object->IsActiveInHierarchy()) {
             object->FixedUpdate();
         }
     }
+    m_Physics.FixedUpdate(dt);
 }
 
 void Scene::LateUpdate() {

destrum/src/Scene/SceneManager.cpp

@@ -8,8 +8,8 @@ void SceneManager::Update() {
     m_scenes[m_ActiveSceneIndex]->Update();
 }
 
-void SceneManager::FixedUpdate() {
-    m_scenes[m_ActiveSceneIndex]->FixedUpdate();
+void SceneManager::FixedUpdate(float dt) {
+    m_scenes[m_ActiveSceneIndex]->FixedUpdate(dt);
 }
 
 void SceneManager::LateUpdate() {