Remade component ids

No longer based on incrementing counter


Former-commit-id: b875e17781d8bcda48ea9ada523adf0823b22a8b

SDK/include/NDK/Algorithm.inl

@@ -0,0 +1,27 @@
+// 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 <Nazara/Core/Endianness.hpp>
+
+namespace Ndk
+{
+	///TODO: constexpr avec le C++14
+	template<unsigned int N>
+	ComponentId BuildComponentId(const char (&id)[N])
+	{
+		static_assert(N-1 <= sizeof(ComponentId), "ID too long for this size of component id");
+
+		ComponentId componentId = 0;
+		for (int i = 0; i < N; ++i)
+			componentId |= static_cast<ComponentId>(id[i]) << i*8;
+
+		return componentId;
+	}
+
+	template<typename ComponentType>
+	constexpr ComponentId GetComponentId()
+	{
+		return ComponentType::ComponentId;
+	}
+}