/*
===========================================================================

Return to Castle Wolfenstein single player GPL Source Code
Copyright (C) 1999-2010 id Software LLC, a ZeniMax Media company. 

This file is part of the Return to Castle Wolfenstein single player GPL Source Code (“RTCW SP Source Code”).  

RTCW SP Source Code 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 3 of the License, or
(at your option) any later version.

RTCW SP Source Code 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 RTCW SP Source Code.  If not, see <http://www.gnu.org/licenses/>.

In addition, the RTCW SP Source Code is also subject to certain additional terms. You should have received a copy of these additional terms immediately following the terms and conditions of the GNU General Public License which accompanied the RTCW SP Source Code.  If not, please request a copy in writing from id Software at the address below.

If you have questions concerning this license or the applicable additional terms, you may contact in writing id Software LLC, c/o ZeniMax Media Inc., Suite 120, Rockville, Maryland 20850 USA.

===========================================================================
*/

//===========================================================================
//
// Name:         map_q3.c
// Function:     map loading
// Programmer:   Mr Elusive (MrElusive@demigod.demon.nl)
// Last update:  1999-07-02
// Tab Size:     3
//===========================================================================

#include "qbsp.h"
#include "l_mem.h"
#include "../botlib/aasfile.h"           //aas_bbox_t
#include "aas_store.h"       //AAS_MAX_BBOXES
#include "aas_cfg.h"
#include "aas_map.h"         //AAS_CreateMapBrushes
#include "l_bsp_q3.h"
#include "../qcommon/cm_patch.h"
#include "../game/surfaceflags.h"

#define NODESTACKSIZE       1024
//===========================================================================
//
// Parameter:			-
// Returns:				-
// Changes Globals:		-
//===========================================================================
void PrintContents( int contents );

int Q3_BrushContents( mapbrush_t *b ) {
	int contents, i, mixed, hint;
	side_t *s;

	s = &b->original_sides[0];
	contents = s->contents;
	//
	mixed = false;
	hint = false;
	for ( i = 1; i < b->numsides; i++ )
	{
		s = &b->original_sides[i];
		if ( s->contents != contents ) {
			mixed = true;
		}
		if ( s->surf & ( SURF_HINT | SURF_SKIP ) ) {
			hint = true;
		}
		contents |= s->contents;
	} //end for
	  //
	if ( hint ) {
		if ( contents ) {
			Log_Write( "WARNING: hint brush with contents: " );
			PrintContents( contents );
			Log_Write( "\r\n" );
			//
			Log_Write( "brush contents is: " );
			PrintContents( b->contents );
			Log_Write( "\r\n" );
		} //end if
		return 0;
	} //end if
	  //Log_Write("brush %d contents ", nummapbrushes);
	  //PrintContents(contents);
	  //Log_Write("\r\n");
	  //remove ladder and fog contents
	contents &= ~( CONTENTS_LADDER | CONTENTS_FOG );
	//
	if ( mixed ) {
		Log_Write( "Entity %i, Brush %i: mixed face contents "
				   , b->entitynum, b->brushnum );
		PrintContents( contents );
		Log_Write( "\r\n" );
		//
		Log_Write( "brush contents is: " );
		PrintContents( b->contents );
		Log_Write( "\r\n" );
		//
		if ( contents & CONTENTS_DONOTENTER ) {
			return CONTENTS_DONOTENTER;                                //Log_Print("mixed contents with donotenter\n");
		}
		/*
		Log_Print("contents:"); PrintContents(contents);
		Log_Print("\ncontents:"); PrintContents(s->contents);
		Log_Print("\n");
		Log_Print("texture name = %s\n", texinfo[s->texinfo].texture);
		*/
		//if liquid brush
		if ( contents & ( CONTENTS_LAVA | CONTENTS_SLIME | CONTENTS_WATER ) ) {
			return ( contents & ( CONTENTS_LAVA | CONTENTS_SLIME | CONTENTS_WATER ) );
		} //end if
		if ( contents & CONTENTS_PLAYERCLIP ) {
			return ( contents & CONTENTS_PLAYERCLIP );
		}
		return ( contents & CONTENTS_SOLID );
	} //end if
	  /*
	  if (contents & CONTENTS_AREAPORTAL)
	  {
		  static int num;
		  Log_Write("Entity %i, Brush %i: area portal %d\r\n", b->entitynum, b->brushnum, num++);
	  } //end if*/
	if ( contents == ( contents & CONTENTS_STRUCTURAL ) ) {
		//Log_Print("brush %i is only structural\n", b->brushnum);
		contents = 0;
	} //end if
	if ( contents & CONTENTS_DONOTENTER ) {
		Log_Print( "brush %i is a donotenter brush, c = %X\n", b->brushnum, contents );
	} //end if
	return contents;
} //end of the function Q3_BrushContents
//===========================================================================
//
// Parameter:			-
// Returns:				-
// Changes Globals:		-
//===========================================================================
void Q3_DPlanes2MapPlanes( void ) {
	int i;

	for ( i = 0; i < q3_numplanes; i++ )
	{
		dplanes2mapplanes[i] = FindFloatPlane( q3_dplanes[i].normal, q3_dplanes[i].dist );
	} //end for
} //end of the function Q3_DPlanes2MapPlanes
//===========================================================================
//
// Parameter:				-
// Returns:					-
// Changes Globals:		-
//===========================================================================
void Q3_BSPBrushToMapBrush( q3_dbrush_t *bspbrush, entity_t *mapent ) {
	mapbrush_t *b;
	int i, k, n;
	side_t *side, *s2;
	int planenum;
	q3_dbrushside_t *bspbrushside;
	q3_dplane_t *bspplane;
	int contentFlags = 0;

	if ( nummapbrushes >= MAX_MAPFILE_BRUSHES ) {
		Error( "nummapbrushes >= MAX_MAPFILE_BRUSHES" );
	}

	b = &mapbrushes[nummapbrushes];
	b->original_sides = &brushsides[nummapbrushsides];
	b->entitynum = mapent - entities;
	b->brushnum = nummapbrushes - mapent->firstbrush;
	b->leafnum = dbrushleafnums[bspbrush - q3_dbrushes];

	for ( n = 0; n < bspbrush->numSides; n++ )
	{
		//pointer to the bsp brush side
		bspbrushside = &q3_dbrushsides[bspbrush->firstSide + n];

		if ( nummapbrushsides >= MAX_MAPFILE_BRUSHSIDES ) {
			Error( "MAX_MAPFILE_BRUSHSIDES" );
		} //end if
		  //pointer to the map brush side
		side = &brushsides[nummapbrushsides];
		//if the BSP brush side is textured
		if ( q3_dbrushsidetextured[bspbrush->firstSide + n] ) {
			side->flags |= SFL_TEXTURED | SFL_VISIBLE;
		} else { side->flags &= ~SFL_TEXTURED;}
		//NOTE: all Quake3 sides are assumed textured
		//side->flags |= SFL_TEXTURED|SFL_VISIBLE;
		//
		if ( bspbrushside->shaderNum < 0 ) {
			side->contents = 0;
			side->surf = 0;
		} //end if
		else
		{
			side->contents = q3_dshaders[bspbrushside->shaderNum].contentFlags;
			side->surf = q3_dshaders[bspbrushside->shaderNum].surfaceFlags;

			if ( strstr( q3_dshaders[bspbrushside->shaderNum].shader, "common/hint" ) ) {
				//Log_Print("found hint side\n");
				side->surf |= SURF_HINT;
			} //end if

			// Ridah, mark ladder brushes
			if ( cfg.rs_allowladders && strstr( q3_dshaders[bspbrushside->shaderNum].shader, "common/ladder" ) ) {
				//Log_Print("found ladder side\n");
				side->contents |= CONTENTS_LADDER;
				contentFlags |= CONTENTS_LADDER;
			} //end if
			  // done.

		} //end else
		  //

		if ( !( strstr( q3_dshaders[bspbrushside->shaderNum].shader, "common/slip" ) ) ) {
			side->flags |= SFL_VISIBLE;
		} else if ( side->surf & SURF_NODRAW )     {
			side->flags |= SFL_TEXTURED | SFL_VISIBLE;
		} //end if
		  /*
		  if (side->contents & (CONTENTS_TRANSLUCENT|CONTENTS_STRUCTURAL))
		  {
			  side->flags |= SFL_TEXTURED|SFL_VISIBLE;
		  } //end if*/

		// hints and skips are never detail, and have no content
		if ( side->surf & ( SURF_HINT | SURF_SKIP ) ) {
			side->contents = 0;
			//Log_Print("found hint brush side\n");
		}
		/*
		if ((side->surf & SURF_NODRAW) && (side->surf & SURF_NOIMPACT))
		{
			side->contents = 0;
			side->surf &= ~CONTENTS_DETAIL;
			Log_Print("probably found hint brush in a BSP without hints being used\n");
		} //end if*/

/*
		// RF, ignore slick brushes (causes ladder issues)
		if (strstr(q3_dshaders[bspbrushside->shaderNum].shader, "common/slick"))
		{
			//Log_Print("found hint side\n");
			b->numsides = 0;
			b->contents = 0;
			return;	// get out of here
		} //end if
*/

		//ME: get a plane for this side
		bspplane = &q3_dplanes[bspbrushside->planeNum];
		planenum = FindFloatPlane( bspplane->normal, bspplane->dist );
		//
		// see if the plane has been used already
		//
		//ME: this really shouldn't happen!!!
		//ME: otherwise the bsp file is corrupted??
		//ME: still it seems to happen, maybe Johny Boy's
		//ME: brush bevel adding is crappy ?
		for ( k = 0; k < b->numsides; k++ )
		{
			s2 = b->original_sides + k;
//			if (DotProduct (mapplanes[s2->planenum].normal, mapplanes[planenum].normal) > 0.999
//							&& fabs(mapplanes[s2->planenum].dist - mapplanes[planenum].dist) < 0.01 )

			if ( s2->planenum == planenum ) {
				Log_Print( "Entity %i, Brush %i: duplicate plane\n"
						   , b->entitynum, b->brushnum );
				break;
			}
			if ( s2->planenum == ( planenum ^ 1 ) ) {
				Log_Print( "Entity %i, Brush %i: mirrored plane\n"
						   , b->entitynum, b->brushnum );
				break;
			}
		}
		if ( k != b->numsides ) {
			continue;       // duplicated

		}
		//
		// keep this side
		//
		//ME: reset pointer to side, why? hell I dunno (pointer is set above already)
		side = b->original_sides + b->numsides;
		//ME: store the plane number
		side->planenum = planenum;
		//ME: texinfo is already stored when bsp is loaded
		//NOTE: check for TEXINFO_NODE, otherwise crash in Q3_BrushContents
		//if (bspbrushside->texinfo < 0) side->texinfo = 0;
		//else side->texinfo = bspbrushside->texinfo;

		// save the td off in case there is an origin brush and we
		// have to recalculate the texinfo
		// ME: don't need to recalculate because it's already done
		//     (for non-world entities) in the BSP file
//		side_brushtextures[nummapbrushsides] = td;

		nummapbrushsides++;
		b->numsides++;
	} //end for

	// get the content for the entire brush
	//Quake3 bsp brushes don't have a contents
	b->contents = q3_dshaders[bspbrush->shaderNum].contentFlags | contentFlags;
	// Ridah, Wolf has ladders (if we call Q3_BrushContents(), we'll get the solid area bug
	b->contents &= ~( /*CONTENTS_LADDER|*/ CONTENTS_FOG | CONTENTS_STRUCTURAL );
	//b->contents = Q3_BrushContents(b);
	//
	// Ridah, CONTENTS_MOSTERCLIP should prevent AAS from being created, but not clip players/AI in the game
	if ( b->contents & CONTENTS_MONSTERCLIP ) {
		b->contents |= CONTENTS_PLAYERCLIP;
	}

	// func_explosive's not solid
	if ( !strcmp( "func_explosive", ValueForKey( &entities[b->entitynum], "classname" ) ) ||
		 !strcmp( "func_invisible_user", ValueForKey( &entities[b->entitynum], "classname" ) ) ||
		 !strcmp( "script_mover", ValueForKey( &entities[b->entitynum], "classname" ) ) ||
		 !strcmp( "func_static", ValueForKey( &entities[b->entitynum], "classname" ) ) ) {
		Log_Print( "Ignoring %s brush..\n", ValueForKey( &entities[b->entitynum], "classname" ) );
		b->numsides = 0;
		b->contents = 0;
		return;
	}

	if ( BrushExists( b ) ) {
		c_squattbrushes++;
		b->numsides = 0;
		return;
	} //end if

	//if we're creating AAS
	if ( create_aas ) {
		//create the AAS brushes from this brush, don't add brush bevels
		AAS_CreateMapBrushes( b, mapent, false );
		return;
	} //end if

	// allow detail brushes to be removed
	if ( nodetail && ( b->contents & CONTENTS_DETAIL ) ) {
		b->numsides = 0;
		return;
	} //end if

	// allow water brushes to be removed
	if ( nowater && ( b->contents & ( CONTENTS_LAVA | CONTENTS_SLIME | CONTENTS_WATER ) ) ) {
		b->numsides = 0;
		return;
	} //end if


	// create windings for sides and bounds for brush
	MakeBrushWindings( b );

	//mark brushes without winding or with a tiny window as bevels
	MarkBrushBevels( b );

	// brushes that will not be visible at all will never be
	// used as bsp splitters
	if ( b->contents & ( CONTENTS_PLAYERCLIP | CONTENTS_MONSTERCLIP ) ) {
		c_clipbrushes++;
		for ( i = 0; i < b->numsides; i++ )
			b->original_sides[i].texinfo = TEXINFO_NODE;
	} //end for

	//
	// origin brushes are removed, but they set
	// the rotation origin for the rest of the brushes
	// in the entity.  After the entire entity is parsed,
	// the planenums and texinfos will be adjusted for
	// the origin brush
	//
	//ME: not needed because the entities in the BSP file already
	//    have an origin set
//	if (b->contents & CONTENTS_ORIGIN)
//	{
//		char	string[32];
//		vec3_t	origin;
//
//		if (num_entities == 1)
//		{
//			Error ("Entity %i, Brush %i: origin brushes not allowed in world"
//				, b->entitynum, b->brushnum);
//			return;
//		}
//
//		VectorAdd (b->mins, b->maxs, origin);
//		VectorScale (origin, 0.5, origin);
//
//		sprintf (string, "%i %i %i", (int)origin[0], (int)origin[1], (int)origin[2]);
//		SetKeyValue (&entities[b->entitynum], "origin", string);
//
//		VectorCopy (origin, entities[b->entitynum].origin);
//
//		// don't keep this brush
//		b->numsides = 0;
//
//		return;
//	}

	//ME: the bsp brushes already have bevels, so we won't try to
	//    add them again (especially since Johny Boy's bevel adding might
	//    be crappy)
//	AddBrushBevels(b);

	nummapbrushes++;
	mapent->numbrushes++;
} //end of the function Q3_BSPBrushToMapBrush
//===========================================================================
//===========================================================================
void Q3_ParseBSPBrushes( entity_t *mapent ) {
	int i;

	/*
	//give all the brushes that belong to this entity the number of the
	//BSP model used by this entity
	Q3_SetBrushModelNumbers(mapent);
	//now parse all the brushes with the correct mapent->modelnum
	for (i = 0; i < q3_numbrushes; i++)
	{
		if (brushmodelnumbers[i] == mapent->modelnum)
		{
			Q3_BSPBrushToMapBrush(&q3_dbrushes[i], mapent);
		} //end if
	} //end for
	*/
	for ( i = 0; i < q3_dmodels[mapent->modelnum].numBrushes; i++ )
	{
		Q3_BSPBrushToMapBrush( &q3_dbrushes[q3_dmodels[mapent->modelnum].firstBrush + i], mapent );
	} //end for
} //end of the function Q3_ParseBSPBrushes
//===========================================================================
//===========================================================================
qboolean Q3_ParseBSPEntity( int entnum ) {
	entity_t *mapent;
	char *model;
	int startbrush, startsides;

	startbrush = nummapbrushes;
	startsides = nummapbrushsides;

	mapent = &entities[entnum]; //num_entities];
	mapent->firstbrush = nummapbrushes;
	mapent->numbrushes = 0;
	mapent->modelnum = -1;  //-1 = no BSP model

	model = ValueForKey( mapent, "model" );
	if ( model && strlen( model ) ) {
		if ( *model == '*' ) {
			//get the model number of this entity (skip the leading *)
			mapent->modelnum = atoi( &model[1] );
		} //end if
	} //end if

	GetVectorForKey( mapent, "origin", mapent->origin );

	//if this is the world entity it has model number zero
	//the world entity has no model key
	if ( !strcmp( "worldspawn", ValueForKey( mapent, "classname" ) ) ) {
		mapent->modelnum = 0;
	} //end if
	  //if the map entity has a BSP model (a modelnum of -1 is used for
	  //entities that aren't using a BSP model)
	if ( mapent->modelnum >= 0 ) {
		//parse the bsp brushes
		Q3_ParseBSPBrushes( mapent );
	} //end if
	  //
	  //the origin of the entity is already taken into account
	  //
	  //func_group entities can't be in the bsp file
	  //
	  //check out the func_areaportal entities
	if ( !strcmp( "func_areaportal", ValueForKey( mapent, "classname" ) ) ) {
		c_areaportals++;
		mapent->areaportalnum = c_areaportals;
		return true;
	} //end if
	return true;
} //end of the function Q3_ParseBSPEntity
//===========================================================================
//
// Parameter:				-
// Returns:					-
// Changes Globals:		-
//===========================================================================
#define MAX_PATCH_VERTS     1024

void AAS_CreateCurveBrushes( void ) {
	int i, j, n, planenum, numcurvebrushes = 0;
	q3_dsurface_t *surface;
	q3_drawVert_t *dv_p;
	vec3_t points[MAX_PATCH_VERTS];
	int width, height, c;
	patchCollide_t *pc;
	facet_t *facet;
	mapbrush_t *brush;
	side_t *side;
	entity_t *mapent;
	winding_t *winding;

	qprintf( "nummapbrushsides = %d\n", nummapbrushsides );
	mapent = &entities[0];
	for ( i = 0; i < q3_numDrawSurfaces; i++ )
	{
		surface = &q3_drawSurfaces[i];
		if ( !surface->patchWidth ) {
			continue;
		}
		//if the curve is not solid
		if ( !( q3_dshaders[surface->shaderNum].contentFlags & ( CONTENTS_SOLID | CONTENTS_PLAYERCLIP ) ) ) {
			//Log_Print("skipped non-solid curve\n");
			continue;
		} //end if
		  //
		width = surface->patchWidth;
		height = surface->patchHeight;
		c = width * height;
		if ( c > MAX_PATCH_VERTS ) {
			Error( "ParseMesh: MAX_PATCH_VERTS" );
		} //end if

		dv_p = q3_drawVerts + surface->firstVert;
		for ( j = 0 ; j < c ; j++, dv_p++ )
		{
			points[j][0] = dv_p->xyz[0];
			points[j][1] = dv_p->xyz[1];
			points[j][2] = dv_p->xyz[2];
		} //end for
		  // create the internal facet structure
		pc = CM_GeneratePatchCollide( width, height, points );
		//
		for ( j = 0; j < pc->numFacets; j++ )
		{
			facet = &pc->facets[j];
			//
			brush = &mapbrushes[nummapbrushes];
			brush->original_sides = &brushsides[nummapbrushsides];
			brush->entitynum = 0;
			brush->brushnum = nummapbrushes - mapent->firstbrush;
			//
			brush->numsides = facet->numBorders + 2;
			nummapbrushsides += brush->numsides;
			brush->contents = CONTENTS_SOLID;
			//
			//qprintf("\r%6d curve brushes", nummapbrushsides);//++numcurvebrushes);
			qprintf( "\r%6d curve brushes", ++numcurvebrushes );
			//
			planenum = FindFloatPlane( pc->planes[facet->surfacePlane].plane, pc->planes[facet->surfacePlane].plane[3] );
			//
			side = &brush->original_sides[0];
			side->planenum = planenum;
			side->contents = CONTENTS_SOLID;
			side->flags |= SFL_TEXTURED | SFL_VISIBLE | SFL_CURVE;
			side->surf = 0;
			//
			side = &brush->original_sides[1];
			if ( create_aas ) {
				//the plane is expanded later so it's not a problem that
				//these first two opposite sides are coplanar
				side->planenum = planenum ^ 1;
			} //end if
			else
			{
				side->planenum = FindFloatPlane( mapplanes[planenum ^ 1].normal, mapplanes[planenum ^ 1].dist + 1 );
				side->flags |= SFL_TEXTURED | SFL_VISIBLE;
			} //end else
			side->contents = CONTENTS_SOLID;
			side->flags |= SFL_CURVE;
			side->surf = 0;
			//
			winding = BaseWindingForPlane( mapplanes[side->planenum].normal, mapplanes[side->planenum].dist );
			for ( n = 0; n < facet->numBorders; n++ )
			{
				//never use the surface plane as a border
				if ( facet->borderPlanes[n] == facet->surfacePlane ) {
					continue;
				}
				//
				side = &brush->original_sides[2 + n];
				side->planenum = FindFloatPlane( pc->planes[facet->borderPlanes[n]].plane, pc->planes[facet->borderPlanes[n]].plane[3] );
				if ( facet->borderInward[n] ) {
					side->planenum ^= 1;
				}
				side->contents = CONTENTS_SOLID;
				side->flags |= SFL_TEXTURED | SFL_CURVE;
				side->surf = 0;
				//chop the winding in place
				if ( winding ) {
					ChopWindingInPlace( &winding, mapplanes[side->planenum ^ 1].normal, mapplanes[side->planenum ^ 1].dist, 0.1 );    //CLIP_EPSILON);
				}
			} //end for
			  //VectorCopy(pc->bounds[0], brush->mins);
			  //VectorCopy(pc->bounds[1], brush->maxs);
			if ( !winding ) {
				Log_Print( "WARNING: AAS_CreateCurveBrushes: no winding\n" );
				brush->numsides = 0;
				continue;
			} //end if
			brush->original_sides[0].winding = winding;
			WindingBounds( winding, brush->mins, brush->maxs );
			for ( n = 0; n < 3; n++ )
			{
				//IDBUG: all the indexes into the mins and maxs were zero (not using i)
				if ( brush->mins[n] < -MAX_MAP_BOUNDS || brush->maxs[n] > MAX_MAP_BOUNDS ) {
					Log_Print( "entity %i, brush %i: bounds out of range\n", brush->entitynum, brush->brushnum );
					Log_Print( "brush->mins[%d] = %f, brush->maxs[%d] = %f\n", n, brush->mins[n], n, brush->maxs[n] );
					brush->numsides = 0; //remove the brush
					break;
				} //end if
				if ( brush->mins[n] > MAX_MAP_BOUNDS || brush->maxs[n] < -MAX_MAP_BOUNDS ) {
					Log_Print( "entity %i, brush %i: no visible sides on brush\n", brush->entitynum, brush->brushnum );
					Log_Print( "brush->mins[%d] = %f, brush->maxs[%d] = %f\n", n, brush->mins[n], n, brush->maxs[n] );
					brush->numsides = 0; //remove the brush
					break;
				} //end if
			} //end for
			if ( create_aas ) {
				//NOTE: brush bevels now already added
				//AddBrushBevels(brush);
				AAS_CreateMapBrushes( brush, mapent, false );
			} //end if
			else
			{
				// create windings for sides and bounds for brush
				MakeBrushWindings( brush );
				AddBrushBevels( brush );
				nummapbrushes++;
				mapent->numbrushes++;
			} //end else
		} //end for
	} //end for
	  //qprintf("\r%6d curve brushes", nummapbrushsides);//++numcurvebrushes);
	qprintf( "\r%6d curve brushes\n", numcurvebrushes );
} //end of the function AAS_CreateCurveBrushes
//===========================================================================
//
// Parameter:				-
// Returns:					-
// Changes Globals:		-
//===========================================================================
void AAS_ExpandMapBrush( mapbrush_t *brush, vec3_t mins, vec3_t maxs );

void Q3_LoadMapFromBSP( struct quakefile_s *qf ) {
	int i;
	//vec3_t mins = {-1,-1,-1}, maxs = {1, 1, 1}; // TTimo: unused

	Log_Print( "-- Q3_LoadMapFromBSP --\n" );
	//loaded map type
	loadedmaptype = MAPTYPE_QUAKE3;

	Log_Print( "Loading map from %s...\n", qf->filename );
	//load the bsp file
	Q3_LoadBSPFile( qf );

	//create an index from bsp planes to map planes
	//DPlanes2MapPlanes();
	//clear brush model numbers
	for ( i = 0; i < MAX_MAPFILE_BRUSHES; i++ )
		brushmodelnumbers[i] = -1;

	nummapbrushsides = 0;
	num_entities = 0;

	Q3_ParseEntities();
	//
	for ( i = 0; i < num_entities; i++ )
	{
		Q3_ParseBSPEntity( i );
	} //end for

	AAS_CreateCurveBrushes();
	//get the map mins and maxs from the world model
	ClearBounds( map_mins, map_maxs );
	for ( i = 0; i < entities[0].numbrushes; i++ )
	{
		if ( mapbrushes[i].numsides <= 0 ) {
			continue;
		}
		//if (mapbrushes[i].mins[0] > 4096)
		//	continue;	//no valid points
		AddPointToBounds( mapbrushes[i].mins, map_mins, map_maxs );
		AddPointToBounds( mapbrushes[i].maxs, map_mins, map_maxs );
	} //end for
	  /*/
	  for (i = 0; i < nummapbrushes; i++)
	  {
		  //if (!mapbrushes[i].original_sides) continue;
		  //AddBrushBevels(&mapbrushes[i]);
		  //AAS_ExpandMapBrush(&mapbrushes[i], mins, maxs);
	  } //end for*/
	  /*
	  for (i = 0; i < nummapbrushsides; i++)
	  {
		  Log_Write("side %d flags = %d", i, brushsides[i].flags);
	  } //end for
	  for (i = 0; i < nummapbrushes; i++)
	  {
		  Log_Write("brush contents: ");
		  PrintContents(mapbrushes[i].contents);
		  Log_Print("\n");
	  } //end for*/
	if ( writeaasmap ) {
		char name[MAX_QPATH];
		strncpy( name, qf->filename, sizeof( name ) );
		StripExtension( name );
		strcat( name, "_aas.map" );
		WriteMapFile( name );
	}
} //end of the function Q3_LoadMapFromBSP
//===========================================================================
//
// Parameter:				-
// Returns:					-
// Changes Globals:		-
//===========================================================================
void Q3_ResetMapLoading( void ) {
	//reset for map loading from bsp
	memset( nodestack, 0, NODESTACKSIZE * sizeof( int ) );
	nodestackptr = NULL;
	nodestacksize = 0;
	memset( brushmodelnumbers, 0, MAX_MAPFILE_BRUSHES * sizeof( int ) );
} //end of the function Q3_ResetMapLoading