--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/engine/core/util/time/timemanager.cpp	Sun Jun 29 18:44:17 2008 +0000
@@ -0,0 +1,116 @@
+/***************************************************************************
+ *   Copyright (C) 2005-2008 by the FIFE team                              *
+ *   http://www.fifengine.de                                               *
+ *   This file is part of FIFE.                                            *
+ *                                                                         *
+ *   FIFE 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; if not, write to the                         *
+ *   Free Software Foundation, Inc.,                                       *
+ *   51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA              *
+ ***************************************************************************/
+
+// Standard C++ library includes
+#include <algorithm>
+#include <cassert>
+
+// 3rd party library includes
+#include <SDL.h>
+
+// FIFE includes
+// These includes are split up in two parts, separated by one empty line
+// First block: files included from the FIFE root src directory
+// Second block: files included from the same folder
+#include "util/log/logger.h"
+
+#include "timeevent.h"
+#include "timemanager.h"
+
+namespace FIFE {
+	static const unsigned long UNDEFINED_TIME_DELTA = 999999;
+	static Logger _log(LM_UTIL);
+	
+	TimeManager::TimeManager():
+		m_current_time (0),
+		m_time_delta(UNDEFINED_TIME_DELTA),
+		m_average_frame_time(0) {
+	}
+
+	TimeManager::~TimeManager() {
+	}
+
+	void TimeManager::update() {
+		// if first update...
+		double avg_multiplier = 0.985;
+		if (m_current_time == 0) {
+			m_current_time = SDL_GetTicks();
+			avg_multiplier = 0;
+		}
+		m_time_delta = m_current_time;
+		m_current_time = SDL_GetTicks();
+		m_time_delta = m_current_time - m_time_delta;
+		m_average_frame_time = m_average_frame_time * avg_multiplier +
+			double(m_time_delta) * (1.0 - avg_multiplier);
+
+		// Update live events.
+		//
+		// It is very important to NOT use iterators (over a vector)
+		// here, as an event might add enough events to resize the vector.
+		// -> Ugly segfault
+		for (size_t i = 0; i != m_events_list.size(); ++i) {
+			TimeEvent* event = m_events_list[ i ];
+			if( event ) {
+				event->managerUpdateEvent(m_current_time);
+			}
+		}
+
+		// Remove dead events
+		std::vector<TimeEvent*>::iterator it;
+		it = std::remove( m_events_list.begin(), m_events_list.end(), static_cast<TimeEvent*>(0));
+		m_events_list.erase( it, m_events_list.end());
+	}
+
+	void TimeManager::registerEvent(TimeEvent* event) {
+		// Register.
+		m_events_list.push_back(event);
+	}
+
+	void TimeManager::unregisterEvent(TimeEvent* event) {
+		// Unregister.
+		std::vector<TimeEvent*>::iterator i = m_events_list.begin();
+		for(; i != m_events_list.end(); ++i) {
+			if( (*i) == event ) {
+				*i = 0;
+				return;
+			}
+		}
+	}
+
+	unsigned long TimeManager::getTime() const {
+		return m_current_time;
+	}
+
+	unsigned long TimeManager::getTimeDelta() const {
+		return m_time_delta;
+	}
+
+	double TimeManager::getAverageFrameTime() const {
+		return m_average_frame_time;
+	}
+
+	void TimeManager::printStatistics() const {
+		FL_LOG(_log, LMsg("Timers: ") << m_events_list.size());
+	}
+
+} //FIFE
+
+