////////////////////////////////////////////////////////////////////////////////
//    Scorched3D (c) 2000-2011, 2026
//
//    This file is part of Scorched3D.
//
//    Scorched3D 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.
//
//    Scorched3D 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 Street, Fifth Floor, Boston, MA 02110-1301 USA.
////////////////////////////////////////////////////////////////////////////////

#ifndef __INCLUDE_RenderTracer_hpp_INCLUDE__
#define __INCLUDE_RenderTracer_hpp_INCLUDE__

#include <list>
#include <map>
#include <common/Vector.hpp>
#include <GLEXT/GLState.hpp>
#include <engine/GameStateI.hpp>

class Tank;

// SINGLETON
class RenderTracer : public GameStateI
{
public:
	static RenderTracer* instance();

	struct TracerLinePoint
	{
		Vector position;
		Vector cross;
	};

	virtual void draw( const unsigned int state );

	void drawTracerEnd( Vector& position );
	void drawSmokeTracer( std::list< TracerLinePoint >& positions );

	void newGame();
	void clearTracers();
	void clearTracerLines();
	void addTracer( unsigned int tank, Vector& position );
	void addSmokeTracer( unsigned int tank, Vector& position, std::list< TracerLinePoint >& positions );

protected:
	static RenderTracer* instance_;

	class TraceEntry
	{
	public:
		TraceEntry( unsigned int t = 0 ) : tank( t ) {}

		unsigned int                              tank;
		std::list< Vector >                       points;
		std::list< std::list< TracerLinePoint > > lines;
	};

	std::map< unsigned int, TraceEntry > traceEntries_;
	TraceEntry*                          current_;
	GLUquadric*                          obj_;
	GLuint                               listNo_;

private:
	RenderTracer();
	virtual ~RenderTracer();
};

#endif  // __INCLUDE_RenderTracer_hpp_INCLUDE__
