/*
BobToolz plugin for GtkRadiant
Copyright (C) 2001 Gordon Biggans

This library 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
*/

// DWinding.h: interface for the DWinding class.
//
//////////////////////////////////////////////////////////////////////

#if !defined(AFX_DWINDING_H__35B2C524_F0A7_11D4_ACF7_004095A18133__INCLUDED_)
#define AFX_DWINDING_H__35B2C524_F0A7_11D4_ACF7_004095A18133__INCLUDED_

#if _MSC_VER > 1000
#pragma once
#endif // _MSC_VER > 1000

#include "mathlib.h"

class DPlane;

class DWinding  
{
public:
	DWinding();
	virtual ~DWinding();

	void AllocWinding(int points);

	bool ChopWinding(DPlane* chopPlane);
	bool ChopWindingInPlace(DPlane* chopPlane, vec_t ON_EPSILON);
	void ClipWindingEpsilon(DPlane* chopPlane, vec_t epsilon, DWinding** front, DWinding** back);

	void CheckWinding();
	void WindingCentre(vec3_t centre);
	void WindingBounds(vec3_t mins, vec3_t maxs);
	void RemoveColinearPoints();

	DWinding* ReverseWinding();
	DWinding* CopyWinding();
	DPlane* WindingPlane();

	int WindingOnPlaneSide(vec3_t normal, vec_t dist);

	vec_t WindingArea();

//	members
	int		numpoints;
	vec3_t*	p;
  vec3_t  clr;
};

#define	MAX_POINTS_ON_WINDING	64

#define	ON_EPSILON	0.01

#endif // !defined(AFX_DWINDING_H__35B2C524_F0A7_11D4_ACF7_004095A18133__INCLUDED_)
