+++ /dev/null
-/*
- * A* Search - A search library used in Empire to determine paths between
- * objects.
- * Copyright (C) 1990-1998 Phil Lapsley
- *
- * 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
- */
-
-#include <config.h>
-
-#include "as.h"
-
-/*
- * Compare the lower bound costs of two nodes. If the two nodes have
- * equal lower bound costs, sort on the secondary field.
- * Used as comparision function for qsort.
- */
-int
-as_costcomp(const void *p1, const void *p2)
-{
- struct as_node *const *n1 = p1;
- struct as_node *const *n2 = p2;
- double diff;
-
- diff = (*n1)->lbcost - (*n2)->lbcost;
- if (diff < -0.0001)
- return -1;
- if (diff > 0.0001)
- return 1;
-
- /* equal, check secondary cost */
- diff = (*n1)->seccost - (*n2)->seccost;
- if (diff < -0.0001)
- return -1;
- if (diff > 0.0001)
- return 1;
- return 0;
-}