Add current work

Former-commit-id: 06dd34f00951e334b330c067f61f69fc73dcc2d2

SDK/src/NDK/Application.cpp

@@ -3,3 +3,47 @@
 // For conditions of distribution and use, see copyright notice in Prerequesites.hpp
 
 #include <NDK/Application.hpp>
+
+namespace Ndk
+{
+	bool Application::Run()
+	{
+		#ifndef NDK_SERVER
+		bool hasAtLeastOneActiveWindow = false;
+
+		auto it = m_windows.begin();
+		while (it != m_windows.end())
+		{
+			Nz::Window& window = **it;
+
+			if (!window.IsOpen(true))
+			{
+				it = m_windows.erase(it);
+				continue;
+			}
+
+			hasAtLeastOneActiveWindow = true;
+
+			++it;
+		}
+		#endif
+
+		float elapsedTime = m_updateClock.GetSeconds();
+		m_updateClock.Restart();
+
+		for (World& world : m_worlds)
+			world.Update(elapsedTime);
+
+		if (m_shouldQuit)
+			return false;
+
+		#ifndef NDK_SERVER
+		if (m_exitOnClosedWindows && !hasAtLeastOneActiveWindow)
+			return false;
+		#endif
+
+		return true;
+	}
+
+	Application* Application::s_application = nullptr;
+}