/* $Id: counter.hpp,v 1.1 2005/10/20 19:46:52 chfreund Exp $ */

#ifndef _COUNTER_HPP_
#define _COUNTER_HPP_

#include "serializable.hpp"
#include "global.hpp"

class Counter : public Serializable {
private:
	real m_timeToLive;
public:
	Counter( real timeToLive = 0.0 )
		: m_timeToLive( timeToLive ) { }
	void setTimeToLive( real timeToLive ) {
		m_timeToLive = timeToLive;
	}
	real getTimeToLive() const { return m_timeToLive; }
	bool isElapsed() const { return ( m_timeToLive <= 0.0 ); }
	bool countDown( real dt ) {
		m_timeToLive -= dt;
		return ( m_timeToLive <= 0.0 );
	}
	
	Uint32 getSerializeBufferSize() const;
	void serialize( Uint8*& bufferPointer ) const;
	void deserialize( Uint8*& bufferPointer );
};

class SignalCounter : public Counter {
private:
	real m_timeToSignal;
	real m_signalCounter;
	bool m_signal;
public:
	SignalCounter( real timeToLive = 0.0, real timeToSignal = 0.0 )
		: Counter( timeToLive ), m_timeToSignal( timeToSignal ),
		  m_signalCounter( timeToSignal ), m_signal( false ) { }
	void setTimeToSignal( real timeToSignal ) {
		m_timeToSignal = timeToSignal;
		m_signalCounter = timeToSignal;
	}
	bool hasSignal() const { return m_signal; }
	bool countDown( real dt ) {
		m_signalCounter -= dt;
		m_signal = false;
		if ( m_signalCounter <= 0.0 ) {
			m_signalCounter += m_timeToSignal;
			m_signal = true;
		}
		return Counter::countDown( dt );
	}
	
	Uint32 getSerializeBufferSize() const;
	void serialize( Uint8*& bufferPointer ) const;
	void deserialize( Uint8*& bufferPointer );
};

#endif // _COUNTER_HPP_