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Import of Empire 4.2.12

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This commit is contained in:
Markus Armbruster 2003-08-23 12:23:04 +00:00
commit d8b7fdfae1
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src/lib/as/as_init.c Normal file
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/*
* 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 <stdio.h>
#include <stdlib.h>
#include "as.h"
#if !defined(lint) && !defined(SABER)
static char sccsid[] = "@(#)as_init.c 1.4 11/13/90";
#endif /* not lint */
/*
* Return an as_data structure with the necessary fields filled in
* and space malloced. Return NULL if malloc fails.
*/
struct as_data *
as_init(int maxneighbors,
int hashsize,
int (*hashfunc) (struct as_coord),
int (*neighborfunc) (struct as_coord, struct as_coord *, s_char *),
double (*lbcostfunc) (struct as_coord, struct as_coord, s_char *),
double (*realcostfunc) (struct as_coord, struct as_coord, s_char *),
double (*seccostfunc) (struct as_coord, struct as_coord, s_char *),
s_char *userdata)
{
struct as_data *adp;
AS_NEW(adp, struct as_data, NULL);
AS_NEW_ARRAY(adp->neighbor_coords, struct as_coord,
maxneighbors, NULL);
AS_NEW_ARRAY(adp->neighbor_nodes, struct as_node *,
maxneighbors + 1, NULL);
AS_NEW_ARRAY(adp->hashtab, struct as_hash *,
hashsize, NULL);
adp->maxneighbors = maxneighbors;
adp->hashsize = hashsize;
adp->hash = hashfunc;
adp->neighbor = neighborfunc;
adp->lbcost = lbcostfunc;
adp->realcost = realcostfunc;
adp->seccost = seccostfunc;
adp->userdata = userdata;
return (adp);
}