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/*
===========================================================================
Copyright (C) 1999-2005 Id Software, Inc.
This file is part of Quake III Arena source code.
Quake III Arena 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 2 of the License,
or (at your option) any later version.
Quake III Arena 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 Foobar; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
===========================================================================
*/
#include "qbsp.h"
#include "botlib/aasfile.h"
#include "aas_create.h"
int c_numprunes;
//===========================================================================
//
// Parameter: -
// Returns: -
// Changes Globals: -
//===========================================================================
tmp_node_t *AAS_PruneNodes_r(tmp_node_t *tmpnode)
{
tmp_area_t *tmparea1, *tmparea2;
//if it is a solid leaf
if (!tmpnode) return NULL;
//
if (tmpnode->tmparea) return tmpnode;
//process the children first
tmpnode->children[0] = AAS_PruneNodes_r(tmpnode->children[0]);
tmpnode->children[1] = AAS_PruneNodes_r(tmpnode->children[1]);
//if both children are areas
if (tmpnode->children[0] && tmpnode->children[1] &&
tmpnode->children[0]->tmparea && tmpnode->children[1]->tmparea)
{
tmparea1 = tmpnode->children[0]->tmparea;
while(tmparea1->mergedarea) tmparea1 = tmparea1->mergedarea;
tmparea2 = tmpnode->children[1]->tmparea;
while(tmparea2->mergedarea) tmparea2 = tmparea2->mergedarea;
if (tmparea1 == tmparea2)
{
c_numprunes++;
tmpnode->tmparea = tmparea1;
tmpnode->planenum = 0;
AAS_FreeTmpNode(tmpnode->children[0]);
AAS_FreeTmpNode(tmpnode->children[1]);
tmpnode->children[0] = NULL;
tmpnode->children[1] = NULL;
return tmpnode;
} //end if
} //end if
//if both solid leafs
if (!tmpnode->children[0] && !tmpnode->children[1])
{
c_numprunes++;
AAS_FreeTmpNode(tmpnode);
return NULL;
} //end if
//
return tmpnode;
} //end of the function AAS_PruneNodes_r
//===========================================================================
//
// Parameter: -
// Returns: -
// Changes Globals: -
//===========================================================================
void AAS_PruneNodes(void)
{
Log_Write("AAS_PruneNodes\r\n");
AAS_PruneNodes_r(tmpaasworld.nodes);
Log_Print("%6d nodes pruned\r\n", c_numprunes);
} //end of the function AAS_PruneNodes