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diff --git a/src/base/time.hpp b/src/base/time.hpp
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+/*
+ * UltraStar Deluxe - Karaoke Game
+ *
+ * UltraStar Deluxe is the legal property of its developers, whose names
+ * are too numerous to list here. Please refer to the COPYRIGHT
+ * file distributed with this source distribution.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; see the file COPYING. If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ * Boston, MA 02110-1301, USA.
+ *
+ * $URL$
+ * $Id$
+ */
+
+#ifndef TIME_HPP
+#define TIME_HPP
+
+#include <stdint.h>
+
+namespace usdx
+{
+	class Time
+	{
+	public:
+		Time(void);
+		float get_time();
+	};
+
+
+	class RelativeTimer
+	{
+	private:
+		// system-clock reference time for calculation of CurrentTime
+		uint64_t absolute_time;
+		float relative_time_offset;
+		bool paused;
+		bool trigger_mode;
+
+	public:
+		RelativeTimer(bool trigger_mode = false);
+		void pause(void);
+		void resume(void);
+		float get_time(void);
+		float get_and_reset_time(void);
+		void set_time(float time, bool trigger = true);
+		void reset(void);
+	};
+
+};
+
+#endif