/*      $NetBSD: savelev.c,v 1.7 2012/06/19 05:30:44 dholland Exp $     */

/* savelev.c             Larn is copyrighted 1986 by Noah Morgan. */
#include <sys/cdefs.h>
#ifndef lint
__RCSID("$NetBSD: savelev.c,v 1.7 2012/06/19 05:30:44 dholland Exp $");
#endif                          /* not lint */
#include "header.h"
#include "extern.h"

/*
 *      routine to save the present level into storage
 */
void
savelevel(void)
{
        struct cel *pcel;
        u_char  *pitem, *pknow, *pmitem;
        short *phitp, *piarg;
        struct cel *pecel;
        pcel = &cell[level * MAXX * MAXY];      /* pointer to this level's
                                                 * cells */
        pecel = pcel + MAXX * MAXY;     /* pointer to past end of this
                                         * level's cells */
        pitem = item[0];
        piarg = iarg[0];
        pknow = know[0];
        pmitem = mitem[0];
        phitp = hitp[0];
        while (pcel < pecel) {
                pcel->mitem = *pmitem++;
                pcel->hitp = *phitp++;
                pcel->item = *pitem++;
                pcel->know = *pknow++;
                pcel->iarg = *piarg++;
                pcel++;
        }
}

/*
 *      routine to restore a level from storage
 */
void
getlevel(void)
{
        struct cel *pcel;
        u_char  *pitem, *pknow, *pmitem;
        short *phitp, *piarg;
        struct cel *pecel;
        pcel = &cell[level * MAXX * MAXY];      /* pointer to this level's
                                                 * cells */
        pecel = pcel + MAXX * MAXY;     /* pointer to past end of this
                                         * level's cells */
        pitem = item[0];
        piarg = iarg[0];
        pknow = know[0];
        pmitem = mitem[0];
        phitp = hitp[0];
        while (pcel < pecel) {
                *pmitem++ = pcel->mitem;
                *phitp++ = pcel->hitp;
                *pitem++ = pcel->item;
                *pknow++ = pcel->know;
                *piarg++ = pcel->iarg;
                pcel++;
        }
}