Reworked VertexMapper to make it way more generic

Will work with any attribute and vertex declaration


Former-commit-id: ca99734bd8a9c3e57c99b1cc338f03e79dda55f6

include/Nazara/Utility/VertexMapper.inl

@@ -0,0 +1,27 @@
+// Copyright (C) 2014 Jérôme Leclercq
+// This file is part of the "Nazara Engine - Utility module"
+// For conditions of distribution and use, see copyright notice in Config.hpp
+
+#include <Nazara/Utility/Debug.hpp>
+
+template <typename T>
+NzSparsePtr<T> NzVertexMapper::GetAttributePtr(nzAttributeUsage attribute)
+{
+	bool enabled;
+	nzAttributeType type;
+	unsigned int offset;
+	m_declaration->GetAttribute(attribute, &enabled, &type, &offset);
+
+	if (enabled)
+	{
+		///TODO: Vérifier le rapport entre le type de l'attribut et le type template ?
+		return NzSparsePtr<T>(static_cast<nzUInt8*>(m_mapper.GetPointer()) + offset, m_declaration->GetStride());
+	}
+	else
+	{
+		NazaraError("Attribute 0x" + NzString::Number(attribute, 16) + " is not enabled");
+		return NzSparsePtr<T>();
+	}
+}
+
+#include <Nazara/Utility/DebugOff.hpp>