Optimizations

src/Systems/TransformSystem.cpp

@@ -60,3 +60,34 @@ glm::vec3 Systems::TransformSystem::AbsoluteScale(EntityID entity)
 
 	return absScale;
 }
+
+Components::Transform Systems::TransformSystem::AbsoluteTransform(EntityID entity)
+{
+	glm::vec3 absPosition;
+	glm::quat absOrientation;
+	glm::vec3 absScale(1);
+
+	do
+	{
+		auto transform = m_World->GetComponent<Components::Transform>(entity, "Transform");
+		entity = m_World->GetEntityParent(entity);
+		auto transform2 = m_World->GetComponent<Components::Transform>(entity, "Transform");
+
+		// Position
+		if (entity != 0)
+			absPosition += transform2->Orientation * transform->Position;
+		else
+			absPosition += transform->Position;
+		// Orientation
+		absOrientation = transform->Orientation * absOrientation;
+		// Scale
+		absScale *= transform->Scale;
+	} while (entity != 0);
+
+	Components::Transform transform;
+	transform.Position = absPosition;
+	transform.Orientation = absOrientation;
+	transform.Scale = absScale;
+
+	return transform;
+}