Core/Signal: Add Signals (WIP)

Former-commit-id: eee55aa563f29c5604437f3c1a2b172af1a6410d

include/Nazara/Core/Signal.inl

@@ -0,0 +1,22 @@
+// Copyright (C) 2015 Jérôme Leclercq
+// This file is part of the "Nazara Engine - Core module"
+// For conditions of distribution and use, see copyright notice in Config.hpp
+
+#include <Nazara/Core/Error.hpp>
+#include <algorithm>
+#include <Nazara/Core/Debug.hpp>
+
+template<typename... Args>
+void NzSignal<Args...>::Connect(const Callback& func)
+{
+	m_callbacks.push_back(func);
+}
+
+template<typename... Args>
+void NzSignal<Args...>::operator()(Args&&... args)
+{
+	for (const Callback& func : m_callbacks)
+		func(std::forward<Args>(args)...);
+}
+
+#include <Nazara/Core/DebugOff.hpp>