bspbrush.h

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/*
Copyright (C) 1997-2001 Id Software, Inc.

This program 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.

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, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.

*/

#pragma once

#include "../../shared/mathlib.h"   /* for vec3_t */

#if 0
/* the code is not yet ready for this */
struct bspbrush_s;
typedef struct bspbrush_s bspbrush_t;
#else
#define STANDARD_NUMBER_OF_BRUSHSIDES 6
typedef struct bspbrush_s {
    struct bspbrush_s* next;
    AABB    brBox;
    int     side;       
    int     testside;
    struct mapbrush_s* original;
    int     numsides;
    side_t  sides[STANDARD_NUMBER_OF_BRUSHSIDES];           
} bspbrush_t;
#endif

bspbrush_t* BrushFromBounds(const vec3_t mins, const vec3_t maxs);
bspbrush_t* CopyBrush(const bspbrush_t* brush);
side_t* SelectSplitSide(bspbrush_t* brushes, bspbrush_t* volume);
void SplitBrushList(bspbrush_t* brushes, uint16_t planenum, bspbrush_t** front, bspbrush_t** back);
void SplitBrush(const bspbrush_t* brush, uint16_t planenum, bspbrush_t** front, bspbrush_t** back);
bspbrush_t* AllocBrush(int numsides);
int CountBrushList(bspbrush_t* brushes);
void FreeBrush(bspbrush_t* brushes);
void FreeBrushList(bspbrush_t* brushes);
uint32_t BrushListCalcContents(bspbrush_t* brushlist);
void BrushlistCalcStats(bspbrush_t* brushlist, AABB& blBox);