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/*  Project Starshatter 4.5
	Destroyer Studios LLC
	Copyright © 1997-2004. All Rights Reserved.

	SUBSYSTEM:    Stars.exe
	FILE:         Trail.h
	AUTHOR:       John DiCamillo


	OVERVIEW
	========
	Missile Trail (Graphic) class
*/

#ifndef Trail_h
#define Trail_h

#include "Types.h"
#include "Geometry.h"
#include "Polygon.h"
#include "SimObject.h"
#include "Graphic.h"

// +--------------------------------------------------------------------+

class Trail : public Graphic
{
public:
	Trail(Bitmap* tex, int n=512);
	virtual ~Trail();

	virtual void      UpdateVerts(const Point& cam_pos);
	virtual void      Render(Video* video, DWORD flags);
	virtual void      AddPoint(const Point& v);
	virtual double    AverageLength();

	virtual void      SetWidth(double w)   { width = w; }
	virtual void      SetDim(int d)        { dim   = d; }

protected:
	int            ntrail;
	int            maxtrail;
	Point*         trail;

	double         length;
	double         width;
	int            dim;

	int            npolys, nverts;
	Poly*          polys;
	VertexSet*     verts;
	Bitmap*        texture;
	Material       mtl;

	double         length0, length1;
	double         last_point_time;
};

#endif Trail_h