ref: 761946b93cf45a3b9e47868a704fb165af760333
dir: /code/bspc/leakfile.c/
/*
===========================================================================
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"
/*
==============================================================================
LEAF FILE GENERATION
Save out name.line for qe3 to read
==============================================================================
*/
/*
=============
LeakFile
Finds the shortest possible chain of portals
that leads from the outside leaf to a specifically
occupied leaf
=============
*/
void LeakFile (tree_t *tree)
{
vec3_t mid;
FILE *linefile;
char filename[1024];
node_t *node;
int count;
if (!tree->outside_node.occupied)
return;
qprintf ("--- LeakFile ---\n");
//
// write the points to the file
//
sprintf (filename, "%s.lin", source);
qprintf ("%s\n", filename);
linefile = fopen (filename, "w");
if (!linefile)
Error ("Couldn't open %s\n", filename);
count = 0;
node = &tree->outside_node;
while (node->occupied > 1)
{
int next;
portal_t *p, *nextportal;
node_t *nextnode;
int s;
// find the best portal exit
next = node->occupied;
for (p=node->portals ; p ; p = p->next[!s])
{
s = (p->nodes[0] == node);
if (p->nodes[s]->occupied
&& p->nodes[s]->occupied < next)
{
nextportal = p;
nextnode = p->nodes[s];
next = nextnode->occupied;
}
}
node = nextnode;
WindingCenter (nextportal->winding, mid);
fprintf (linefile, "%f %f %f\n", mid[0], mid[1], mid[2]);
count++;
}
// add the occupant center
GetVectorForKey (node->occupant, "origin", mid);
fprintf (linefile, "%f %f %f\n", mid[0], mid[1], mid[2]);
qprintf ("%5i point linefile\n", count+1);
fclose (linefile);
}