/***************************************************************************
 *   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 Lesser General Public            *
 *   License as published by the Free Software Foundation; either          *
 *   version 2.1 of the License, or (at your option) any later version.    *
 *                                                                         *
 *   This library 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     *
 *   Lesser General Public License for more details.                       *
 *                                                                         *
 *   You should have received a copy of the GNU Lesser General Public      *
 *   License along with this library; if not, write to the                 *
 *   Free Software Foundation, Inc.,                                       *
 *   51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA          *
 ***************************************************************************/

// Standard C++ library includes

// 3rd party library includes

// 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 "timemanager.h"
#include "timer.h"

namespace FIFE {

	// Remember TimeEvent(-1) means that even an registered event won't be called
	Timer::Timer() 
		: TimeEvent(-1), 
		m_active(false) {
	}

	Timer::~Timer() {
		stop();
	}

	void Timer::start() {
		if(m_active)
			return;
		setLastUpdateTime( TimeManager::instance()->getTime() );
		TimeManager::instance()->registerEvent(this);
		m_active = true;
	}

	void Timer::stop() {
		if(!m_active)
			return;
		TimeManager::instance()->unregisterEvent(this);
		m_active = false;
	}

	void Timer::setInterval(unsigned long msec) {
		setPeriod(msec);
		stop();
	}
	void Timer::setCallback(const type_callback& cb) {
		m_callback = cb;
	}

	void Timer::updateEvent(unsigned long) {
		if(!m_active)
			return;

		if( m_callback ) {
			m_callback();
		}
	}
}