Fixed volumetric fog, added transform system

Nuake/src/Scene/Systems/TransformSystem.cpp

@@ -0,0 +1,54 @@
+#include "TransformSystem.h"
+#include "src/Scene/Scene.h"
+#include <src/Scene/Components/TransformComponent.h>
+#include <src/Scene/Components/ParentComponent.h>
+
+TransformSystem::TransformSystem(Scene* scene)
+{
+	m_Scene = scene;
+}
+
+bool TransformSystem::Init()
+{
+	UpdateTransform();
+	return true;
+}
+
+void TransformSystem::Update(Timestep ts)
+{
+	UpdateTransform();
+}
+
+void TransformSystem::FixedUpdate(Timestep ts)
+{
+
+}
+
+void TransformSystem::Exit()
+{
+
+}
+
+void TransformSystem::UpdateTransform()
+{
+	auto transformView = m_Scene->m_Registry.view<ParentComponent, TransformComponent>();
+	for (auto e : transformView) {
+		auto [parent, transform] = transformView.get<ParentComponent, TransformComponent>(e);
+		Entity currentParent = Entity((entt::entity)e, m_Scene);
+		Vector3 globalPos = Vector3();
+		if (parent.HasParent)
+		{
+			while (currentParent.GetComponent<ParentComponent>().HasParent) 
+			{
+				currentParent = currentParent.GetComponent<ParentComponent>().Parent;
+				globalPos += currentParent.GetComponent<TransformComponent>().Translation;
+			}
+
+			transform.GlobalTranslation = globalPos + transform.Translation;
+		}
+		else
+		{
+			transform.GlobalTranslation = transform.Translation;
+		}
+	}
+}