(Scene) Added CreateNode and Clear methods

Former-commit-id: de92f4a4be45e5cbd1d2d83191300e0b46764f0e

include/Nazara/Graphics/Scene.inl

@@ -0,0 +1,107 @@
+// Copyright (C) 2015 Jérôme Leclercq
+// This file is part of the "Nazara Engine - Graphics module"
+// For conditions of distribution and use, see copyright notice in Config.hpp
+
+#include <Nazara/Graphics/Enums.hpp>
+#include <Nazara/Graphics/Debug.hpp>
+
+///TODO: Déplacer vers SceneNode et exposer
+
+// Pour être sûr que ce code soit à jour
+static_assert(nzSceneNodeType_Max == 6, "Please update the code below");
+
+class NzLight;
+class NzModel;
+class NzParticleEmitter;
+class NzSceneRoot;
+class NzSprite;
+class NzTextSprite;
+
+template<typename T>
+constexpr nzSceneNodeType NzImplGetType()
+{
+	return nzSceneNodeType_User;
+}
+
+template<>
+inline constexpr nzSceneNodeType NzImplGetType<NzLight>()
+{
+	return nzSceneNodeType_Light;
+}
+
+template<>
+inline constexpr nzSceneNodeType NzImplGetType<NzModel>()
+{
+	return nzSceneNodeType_Model;
+}
+
+template<>
+inline constexpr nzSceneNodeType NzImplGetType<NzParticleEmitter>()
+{
+	return nzSceneNodeType_ParticleEmitter;
+}
+
+template<>
+inline constexpr nzSceneNodeType NzImplGetType<NzSceneRoot>()
+{
+	return nzSceneNodeType_Root;
+}
+
+template<>
+inline constexpr nzSceneNodeType NzImplGetType<NzSprite>()
+{
+	return nzSceneNodeType_Sprite;
+}
+
+template<>
+inline constexpr nzSceneNodeType NzImplGetType<NzTextSprite>()
+{
+	return nzSceneNodeType_TextSprite;
+}
+
+
+template<typename T, typename... Args>
+T* NzScene::CreateNode(Args&&... args)
+{
+	std::unique_ptr<T> node(new T(std::forward<Args>(args)...));
+	if (!RegisterSceneNode(NzString(), node.get()))
+		return nullptr;
+
+	return node.release();
+}
+
+template<typename T, typename... Args>
+T* NzScene::CreateNode(const NzString& name, Args&&... args)
+{
+	std::unique_ptr<T> node(new T(std::forward<Args>(args)...));
+	if (!RegisterSceneNode(name, node.get()))
+		return nullptr;
+
+	return node.release();
+}
+
+template<typename T, typename... Args>
+T* NzScene::CreateNode(const NzString& name, const NzString& templateNodeName)
+{
+	auto it = m_nodeMap.find(templateNodeName);
+	if (it == m_nodeMap.end())
+	{
+		NazaraError("Node \"" + templateNodeName + "\" is not registred");
+		return nullptr;
+	}
+
+	NzSceneNode* sceneNode = it->second;
+	if (NzImplGetType<T>() != sceneNode->GetSceneNodeType())
+	{
+		NazaraError("Scene node type of T (" + NzString::Number(NzImplGetType<T>()) + ") doesn't match template scene node type (" + NzString::Number(sceneNode->GetSceneNodeType()) + ")");
+		return nullptr;
+	}
+
+	std::unique_ptr<T> node(static_cast<T*>(sceneNode)->Copy());
+	if (!RegisterSceneNode(name, node.get()))
+		return nullptr;
+
+	return node.release();
+}
+
+#include <Nazara/Graphics/DebugOff.hpp>