Ndk: Add RenderSystem (experimental)

Former-commit-id: 23b11c6e9a21a4f26df6bde3d161578101cb2b29

SDK/include/NDK/Systems/RenderSystem.hpp

@@ -0,0 +1,39 @@
+// Copyright (C) 2015 Jérôme Leclercq
+// This file is part of the "Nazara Development Kit"
+// For conditions of distribution and use, see copyright notice in Prerequesites.hpp
+
+#pragma once
+
+#ifndef NDK_SYSTEMS_RENDERSYSTEM_HPP
+#define NDK_SYSTEMS_RENDERSYSTEM_HPP
+
+#include <NDK/EntityList.hpp>
+#include <NDK/System.hpp>
+#include <unordered_map>
+#include <vector>
+
+namespace Ndk
+{
+	class GraphicsComponent;
+
+	class NDK_API RenderSystem : public System<RenderSystem>
+	{
+		public:
+			RenderSystem();
+			~RenderSystem() = default;
+
+			void Update(float elapsedTime);
+
+			static SystemIndex systemIndex;
+
+		private:
+			void OnEntityValidation(Entity* entity, bool justAdded) override;
+
+			EntityList m_cameras;
+			EntityList m_drawables;
+	};
+}
+
+#include <NDK/Systems/RenderSystem.inl>
+
+#endif // NDK_SYSTEMS_RENDERSYSTEM_HPP

SDK/include/NDK/Systems/RenderSystem.inl

@@ -0,0 +1,3 @@
+// Copyright (C) 2015 Jérôme Leclercq
+// This file is part of the "Nazara Development Kit"
+// For conditions of distribution and use, see copyright notice in Prerequesites.hpp

SDK/src/NDK/Sdk.cpp

@@ -22,6 +22,7 @@
 #include <NDK/Components/VelocityComponent.hpp>
 #include <NDK/Systems/ListenerSystem.hpp>
 #include <NDK/Systems/PhysicsSystem.hpp>
+#include <NDK/Systems/RenderSystem.hpp>
 #include <NDK/Systems/VelocitySystem.hpp>
 
 namespace Ndk
@@ -65,6 +66,7 @@ namespace Ndk
 			// Systèmes
 			InitializeSystem<ListenerSystem>();
 			InitializeSystem<PhysicsSystem>();
+			InitializeSystem<RenderSystem>();
 			InitializeSystem<VelocitySystem>();
 
 			NazaraNotice("Initialized: SDK");

SDK/src/NDK/Systems/RenderSystem.cpp

@@ -0,0 +1,40 @@
+// Copyright (C) 2015 Jérôme Leclercq
+// This file is part of the "Nazara Development Kit"
+// For conditions of distribution and use, see copyright notice in Prerequesites.hpp
+
+#include <NDK/Systems/RenderSystem.hpp>
+#include <NDK/Components/CameraComponent.hpp>
+#include <NDK/Components/GraphicsComponent.hpp>
+
+namespace Ndk
+{
+	RenderSystem::RenderSystem()
+	{
+	}
+
+	void RenderSystem::Update(float elapsedTime)
+	{
+	}
+
+	void RenderSystem::OnEntityValidation(Entity* entity, bool justAdded)
+	{
+		if (entity->HasComponent<CameraComponent>())
+		{
+			m_cameras.Insert(entity);
+			std::sort(m_cameras.begin(), m_cameras.end(), [](const EntityHandle& handle1, const EntityHandle& handle2)
+			{
+				return handle1->GetComponent<CameraComponent>().GetLayer() < handle2->GetComponent<CameraComponent>().GetLayer();
+			});
+		}
+		else
+			m_cameras.Remove(entity);
+
+		if (entity->HasComponent<GraphicsComponent>())
+			m_drawables.Insert(entity);
+		else
+			m_drawables.Remove(entity);
+
+	}
+
+	SystemIndex RenderSystem::systemIndex;
+}

SDK/src/NDK/World.cpp

@@ -6,6 +6,7 @@
 #include <Nazara/Core/Error.hpp>
 #include <NDK/Systems/ListenerSystem.hpp>
 #include <NDK/Systems/PhysicsSystem.hpp>
+#include <NDK/Systems/RenderSystem.hpp>
 #include <NDK/Systems/VelocitySystem.hpp>
 
 namespace Ndk
@@ -20,6 +21,7 @@ namespace Ndk
 	{
 		AddSystem<ListenerSystem>();
 		AddSystem<PhysicsSystem>();
+		AddSystem<RenderSystem>();
 		AddSystem<VelocitySystem>();
 	}