/***************************************************************************
                          FlyingChars.h  -  description
                             -------------------
    begin                : Mon Aug 12 2003
    copyright            : (C) 2003 by upi
    email                : upi@apocalypse.rulez.org
 ***************************************************************************/



#ifndef FLYINGCHARS_H
#define FLYINGCHARS_H


#include "sge_bm_text.h"
#include <vector>
#include <list>



struct FlyingLetter
{
	int m_iX, m_iY;
	int m_iSX, m_iSY;
	int m_iDX, m_iDY;
	int m_iDelay;
	int m_iTime;
	unsigned char m_cLetter;
};


class FlyingChars
{
public:

	enum TextAlignment {
		FC_AlignLeft,
		FC_AlignRight,
		FC_AlignCenter,
		FC_AlignJustify,
	};

public:
	FlyingChars( sge_bmpFont* a_poFont, const SDL_Rect& a_roRect, int a_iFontDisplacement = 0 );
	~FlyingChars();
	
	void AddText( const char* a_pcText, TextAlignment a_enAlignment, bool bOneByOne );
	
	void Advance( int a_iNumFrames );
	void Draw();
	bool IsDone();
	int GetCount();
	
protected:
	void AddNextLine();
	int GetCharWidth( unsigned char a_cChar );
	void DequeueText();

protected:

	struct EnqueuedText
	{
		const char*				m_pcText;
		TextAlignment			m_enAlignment;
	};
	std::list<EnqueuedText>		m_oEnqueuedTexts;
	bool						m_bDone;

	bool						m_bScrolling;
	double						m_dScrollupRate;
	double						m_dScrollup;

	typedef std::vector<FlyingLetter>	FlyingLetterList;
	typedef FlyingLetterList::iterator	FlyingLetterIterator;

	sge_bmpFont*				m_poFont;
	int							m_iFontDisplacement;
	FlyingLetterList			m_oLetters;
	int							m_iTimeToNextLine;

	SDL_Rect					m_oRect;	
	const unsigned char*		m_pcText;
	TextAlignment				m_enAlignment;
	int							m_iTextOffset;
	int							m_iLastLineY;
	int							m_iDelay;
};

#endif //  FLYINGCHARS_H