/*
===========================================================================
Copyright (C) 1999 - 2005, Id Software, Inc.
Copyright (C) 2000 - 2013, Raven Software, Inc.
Copyright (C) 2001 - 2013, Activision, Inc.
Copyright (C) 2013 - 2015, OpenJK contributors

This file is part of the OpenJK source code.

OpenJK is free software; you can redistribute it and/or modify it
under the terms of the GNU General Public License version 2 as
published by the Free Software Foundation.

This program 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, see <http://www.gnu.org/licenses/>.
===========================================================================
*/

// this is only used for visualization tools in cm_ debug functions

#ifndef CM_POLYLIB_H
#define CM_POLYLIB_H

typedef struct
{
	int		numpoints;
	vec3_t	p[4];		// variable sized
} winding_t;

#define	MAX_POINTS_ON_WINDING	64

#define	SIDE_FRONT	0
#define	SIDE_BACK	1
#define	SIDE_ON		2
#define	SIDE_CROSS	3

#define	CLIP_EPSILON	0.1f

#define MAX_MAP_BOUNDS			65535

// you can define on_epsilon in the makefile as tighter
#ifndef	ON_EPSILON
#define	ON_EPSILON	0.1f
#endif

winding_t	*AllocWinding (int points);
winding_t	*CopyWinding (winding_t *w);
winding_t	*BaseWindingForPlane (vec3_t normal, vec_t dist);
void	FreeWinding (winding_t *w);
void	WindingBounds (winding_t *w, vec3_t mins, vec3_t maxs);

void	AddWindingToConvexHull( winding_t *w, winding_t **hull, vec3_t normal );

void	ChopWindingInPlace (winding_t **w, vec3_t normal, vec_t dist, vec_t epsilon);
// frees the original if clipped

void pw(winding_t *w);
#endif