Children transforms relative to parents using TransformSystem::AbsolutePosition and TransformSystem::AbsoluteOrientation

Escape-the-Dawn/Systems/LevelGenerationSystem.cpp

@@ -93,6 +93,7 @@ void Systems::LevelGenerationSystem::Update( double dt )
 	for(auto ent : obstacles)
 	{
 		auto transform = m_World->GetComponent<Components::Transform>(ent, "Transform");
+		auto model = m_World->GetComponent<Components::Model>(ent, "Model");
 
 		transform->Velocity.z = velocity;
 		transform->Position += transform->Velocity * (float)dt;
@@ -103,7 +104,12 @@ void Systems::LevelGenerationSystem::Update( double dt )
 			transform->Velocity.y = 0;
 		}
 
-		if(transform->Position.z > 800)
+		if (transform->Position.z > 10 && model->Visible)
+		{
+			model->Visible = false;
+		}
+
+		if(transform->Position.z > 2000)
 		{
 			removethis.push_back(ent);	
 		}

Escape-the-Dawn/Systems/RenderSystem.cpp

@@ -25,7 +25,9 @@ void Systems::RenderSystem::UpdateEntity( double dt, EntityID entity, EntityID p
 		}
 
 		auto model = m_CachedModels[modelComponent->ModelFile];
-		m_Renderer->AddModelToDraw(model, transformComponent->Position, transformComponent->Orientation, transformComponent->Scale);
+		glm::vec3 position = m_TransformSystem->AbsolutePosition(entity);
+		glm::quat orientation = m_TransformSystem->AbsoluteOrientation(entity);
+		m_Renderer->AddModelToDraw(model, position, orientation, transformComponent->Scale, modelComponent->Visible);
 	}
 
 	// Debug draw bounds
@@ -33,7 +35,7 @@ void Systems::RenderSystem::UpdateEntity( double dt, EntityID entity, EntityID p
 	auto collision = m_World->GetComponent<Components::Collision>(entity, "Collision");
 	auto bounds = m_World->GetComponent<Components::Bounds>(entity, "Bounds");
 	if (bounds != nullptr) {
-		glm::vec3 origin = transformComponent->Position + (transformComponent->Scale * bounds->Origin);
+		glm::vec3 origin = m_TransformSystem->AbsolutePosition(entity) + (transformComponent->Scale * bounds->Origin);
 		glm::vec3 volumeVector = transformComponent->Scale * bounds->VolumeVector;
 		m_Renderer->AddAABBToDraw(origin, volumeVector, (collision != nullptr && collision->CollidingEntities.size() > 0));
 	}
@@ -42,8 +44,9 @@ void Systems::RenderSystem::UpdateEntity( double dt, EntityID entity, EntityID p
 	auto pointLightComponent = m_World->GetComponent<Components::PointLight>(entity, "PointLight");
 	if (pointLightComponent != nullptr)
 	{
+		glm::vec3 position = m_TransformSystem->AbsolutePosition(entity);
 		m_Renderer->AddPointLightToDraw(
-			transformComponent->Position, 
+			position, 
 			pointLightComponent->Specular,
 			pointLightComponent->Diffuse,
 			pointLightComponent->constantAttenuation,
@@ -51,6 +54,7 @@ void Systems::RenderSystem::UpdateEntity( double dt, EntityID entity, EntityID p
 			pointLightComponent->quadraticAttenuation,
 			pointLightComponent->spotExponent);
 	}
+
 	auto cameraComponent = m_World->GetComponent<Components::Camera>(entity, "Camera");
 	if (cameraComponent != nullptr)
 	{
@@ -63,6 +67,12 @@ void Systems::RenderSystem::UpdateEntity( double dt, EntityID entity, EntityID p
 	}
 }
 
+void Systems::RenderSystem::Initialize()
+{
+	m_TransformSystem = m_World->GetSystem<Systems::TransformSystem>("TransformSystem");
+}
+
+
 
 
 

Escape-the-Dawn/Systems/RenderSystem.h

@@ -4,6 +4,7 @@
 #include <unordered_map>
 
 #include "System.h"
+#include "Systems/TransformSystem.h"
 #include "Model.h"
 #include "Texture.h"
 #include "Components/Model.h"
@@ -22,6 +23,8 @@ namespace Systems
 		RenderSystem(World* world, std::shared_ptr<Renderer> renderer)
 			: System(world), m_Renderer(renderer){ }
 
+		void Initialize() override;
+
 		std::unordered_map<std::string, std::shared_ptr<Model>> m_CachedModels;
 
 		void OnComponentCreated(std::string type, std::	shared_ptr<Component> component) override;
@@ -29,7 +32,7 @@ namespace Systems
 
 	private:
 		std::shared_ptr<Renderer> m_Renderer;
-
+		std::shared_ptr<Systems::TransformSystem> m_TransformSystem;
 	};
 
 

Escape-the-Dawn/Systems/TransformSystem.cpp

@@ -0,0 +1,47 @@
+#include "TransformSystem.h"
+#include "World.h"
+
+//void Systems::TransformSystem::UpdateEntity(double dt, EntityID entity, EntityID parent)
+//{
+//	if (parent == 0)
+//		return;
+//
+//	auto transform = m_World->GetComponent<Components::Transform>(entity, "Transform");
+//	auto parentTransform = m_World->GetComponent<Components::Transform>(parent, "Transform");
+//
+//	transform->Position = parentTransform->Position + transform->RelativePosition;
+//}
+
+glm::vec3 Systems::TransformSystem::AbsolutePosition(EntityID entity)
+{
+	glm::vec3 absPosition;
+	glm::quat accumulativeOrientation;
+
+	do
+	{
+		auto transform = m_World->GetComponent<Components::Transform>(entity, "Transform");
+		//absPosition += transform->Position;
+		entity = m_World->GetEntityParent(entity);
+		auto transform2 = m_World->GetComponent<Components::Transform>(entity, "Transform");
+		if (entity != 0)
+			absPosition += transform2->Orientation * transform->Position;
+		else
+			absPosition += transform->Position;
+	} while (entity != 0);
+
+	return absPosition * accumulativeOrientation;
+}
+
+glm::quat Systems::TransformSystem::AbsoluteOrientation(EntityID entity) 
+{
+	glm::quat absOrientation;
+
+	do
+	{
+		auto transform = m_World->GetComponent<Components::Transform>(entity, "Transform");
+		absOrientation *= transform->Orientation;
+		entity = m_World->GetEntityParent(entity);
+	} while (entity != 0);
+
+	return absOrientation;
+}

Escape-the-Dawn/Systems/TransformSystem.h

@@ -0,0 +1,25 @@
+#ifndef TransformSystem_h__
+#define TransformSystem_h__
+
+#include "System.h"
+#include "Components/Transform.h"
+
+namespace Systems
+{
+
+	class TransformSystem : public System
+	{
+	public:
+		TransformSystem(World* world)
+			: System(world) { }
+
+		//void Update(double dt) override;
+		//void UpdateEntity(double dt, EntityID entity, EntityID parent) override;
+
+		glm::vec3 AbsolutePosition(EntityID entity);
+		glm::quat AbsoluteOrientation(EntityID entity);
+	};
+
+}
+
+#endif // TransformSystem_h__