--- /dev/null
+/* -------------------------------------------------------------------------------
+
+Copyright (C) 1999-2007 id Software, Inc. and contributors.
+For a list of contributors, see the accompanying CONTRIBUTORS file.
+
+This file is part of GtkRadiant.
+
+GtkRadiant 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.
+
+GtkRadiant 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 GtkRadiant; if not, write to the Free Software
+Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+
+----------------------------------------------------------------------------------
+
+This code has been altered significantly from its original form, to support
+several games based on the Quake III Arena engine, in the form of "Q3Map2."
+
+------------------------------------------------------------------------------- */
+
+
+
+/* marker */
+#define LEAKFILE_C
+
+
+
+/* dependencies */
+#include "q3map2.h"
+
+
+
+/*
+==============================================================================
+
+LEAK 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
+
+TTimo: builds a polyline xml node
+=============
+*/
+xmlNodePtr LeakFile (tree_t *tree)
+{
+ vec3_t mid;
+ FILE *linefile;
+ char filename[1024];
+ node_t *node;
+ int count;
+ xmlNodePtr xml_node, point;
+
+ if (!tree->outside_node.occupied)
+ return NULL;
+
+ Sys_FPrintf (SYS_VRB,"--- LeakFile ---\n");
+
+ //
+ // write the points to the file
+ //
+ sprintf (filename, "%s.lin", source);
+ linefile = fopen (filename, "w");
+ if (!linefile)
+ Error ("Couldn't open %s\n", filename);
+
+ xml_node = xmlNewNode (NULL, (xmlChar*)"polyline");
+
+ count = 0;
+ node = &tree->outside_node;
+ while (node->occupied > 1)
+ {
+ int next;
+ portal_t *p, *nextportal = NULL;
+ node_t *nextnode = NULL;
+ 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]);
+ point = xml_NodeForVec(mid);
+ xmlAddChild(xml_node, point);
+ count++;
+ }
+ // add the occupant center
+ GetVectorForKey (node->occupant, "origin", mid);
+
+ fprintf (linefile, "%f %f %f\n", mid[0], mid[1], mid[2]);
+ point = xml_NodeForVec(mid);
+ xmlAddChild(xml_node, point);
+ Sys_FPrintf( SYS_VRB, "%9d point linefile\n", count+1);
+
+ fclose (linefile);
+
+ return xml_node;
+}
+