empserver/src/lib/subs/bigmap.c

106 lines
2.4 KiB
C

/*
* Empire - A multi-player, client/server Internet based war game.
* Copyright (C) 1986-2006, Dave Pare, Jeff Bailey, Thomas Ruschak,
* Ken Stevens, Steve McClure
*
* 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
*
* ---
*
* See files README, COPYING and CREDITS in the root of the source
* tree for related information and legal notices. It is expected
* that future projects/authors will amend these files as needed.
*
* ---
*
* bigmap.c: Updates a player's sector map using sector offsets and
* simple overwrite rules.
*
* Known contributors to this file:
*
*/
#include <config.h>
#include "misc.h"
#include "player.h"
#include "file.h"
#include "prototypes.h"
/* values of only_bmap:
* 0 = update both maps
* 1 = update only bmap
* 2 = update only bmap with force
*/
static int do_map_set(char *map, coord x, coord y, char t, int force);
int
map_set(natid cnum, coord x, coord y, char t, int only_bmap)
{
int set = 0;
if (!t)
return 0;
if (!only_bmap)
set |= do_map_set(ef_ptr(EF_MAP, cnum), x, y, t, 0);
set |= do_map_set(ef_ptr(EF_BMAP, cnum), x, y, t, only_bmap > 1);
return set;
}
static int
do_map_set(char *map, coord x, coord y, char t, int force)
{
int id;
char ot;
if ((id = sctoff(x, y)) < 0)
return 0;
if (((map[id] == 'x') || (map[id] == 'X')) && !force)
return 0;
ot = map[id];
if (t == '?') {
switch (map[id]) {
case '.':
case '-':
case ' ':
case 0:
map[id] = t;
break;
default:
break;
}
} else {
map[id] = t;
}
return 1;
}
void
writebmap(natid cnum)
{
ef_write(EF_BMAP, cnum, ef_ptr(EF_BMAP, cnum));
}
void
writemap(natid cnum)
{
ef_write(EF_MAP, cnum, ef_ptr(EF_MAP, cnum));
ef_write(EF_BMAP, cnum, ef_ptr(EF_BMAP, cnum));
}