/*
* Empire - A multi-player, client/server Internet based war game.
- * Copyright (C) 1986-2008, Dave Pare, Jeff Bailey, Thomas Ruschak,
- * Ken Stevens, Steve McClure
+ * Copyright (C) 1986-2013, Dave Pare, Jeff Bailey, Thomas Ruschak,
+ * Ken Stevens, Steve McClure, Markus Armbruster
*
- * This program is free software; you can redistribute it and/or modify
+ * Empire 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
+ * the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* 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
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* ---
*
* ---
*
* spy.c: Spy on your neighbors
- *
+ *
* Known contributors to this file:
* Dave Pare, 1986
* Steve McClure, 1998-2000
+ * Markus Armbruster, 2005-2011
*/
#include <config.h>
+#include "chance.h"
#include "commands.h"
#include "item.h"
#include "land.h"
* format: spy <SECTS>
*/
-static int check(coord *table, int *len, coord x, coord y);
-static void insert(coord *table, int *len, coord x, coord y);
-static int num_units(int, int);
+static void spy_report(struct sctstr *sp);
static void prplanes(int, int);
static void prunits(int, int);
-static void spy_report(struct sctstr *sp);
+static char *player_relstr(natid);
int
spy(void)
coord x, y;
coord nx, ny;
int military;
- int savemil;
int btucost;
int i;
- coord *table; /* sectors already seen */
- int t_len = 0;
+ unsigned char *bitmap;
int nrecon;
- int nunits;
struct nstr_sect nstr;
struct nstr_item ni;
struct natstr *natp;
pr("You don't have the BTU's for spying on that scale!\n");
return RET_FAIL;
}
- /*
- * set up all the goodies we need later
- * 6 = neighbors, 2 = x,y
- */
- table = malloc((nsects + 1) * 6 * 2 * sizeof(coord));
- memset(table, 0, (nsects + 1) * 6 * 2 * sizeof(coord));
+ bitmap = calloc((WORLD_SZ() + 7) / 8, 1);
+ if (!bitmap) {
+ logerror("malloc failed in do_look\n");
+ pr("Memory error. Tell the deity.\n");
+ return RET_FAIL;
+ }
+
pr("SPY report\n");
prdate();
pr(" old sct rd rl def\n");
- pr(" sect de own own eff eff eff eff civ mil shl gun pet food bars lnd pln\n");
+ pr(" sect de own own eff eff eff eff civ mil shl gun pet food bars\n");
while (nxtsct(&nstr, &from)) {
if (!player->owner && !player->god)
continue;
+ military = from.sct_item[I_MILIT];
+ if (military == 0)
+ continue;
+ x = from.sct_x;
+ y = from.sct_y;
nrecon = 0;
- nunits = 0;
- snxtitem_xy(&ni, EF_LAND, from.sct_x, from.sct_y);
+ snxtitem_xy(&ni, EF_LAND, x, y);
while (nxtitem(&ni, &land)) {
- nunits++;
if (lchr[(int)land.lnd_type].l_flags & L_RECON)
nrecon++;
}
- if ((military = from.sct_item[I_MILIT]) == 0 && (nunits == 0))
- continue;
- x = from.sct_x;
- y = from.sct_y;
/* Print out the units/planes in this sector */
prunits(x, y);
prplanes(x, y);
- savemil = military;
/*
* check the neighboring sectors.
*/
for (i = 1; i <= 6; i++) {
- if ((military == 0) && (nunits == 0))
+ if (military == 0)
break;
nx = x + diroff[i][0];
ny = y + diroff[i][1];
- /*
- * if we've already seen the
- * sector, don't bother checking it
- * out.
- */
- if (check(table, &t_len, nx, ny)) {
- continue;
- }
+ if (emp_getbit(nx, ny, bitmap))
+ continue; /* spied already */
getsect(nx, ny, &dsect);
- if (player->owner
- || (dsect.sct_type == SCT_WATER)
- || (!dsect.sct_item[I_MILIT] && !dsect.sct_item[I_CIVIL]
- && num_units(nx, ny) == 0)) {
- /* mark sector as seen */
- insert(table, &t_len, nx, ny);
+ if (player->owner || dsect.sct_type == SCT_WATER)
continue;
- }
own = dsect.sct_own;
- relat = getrel(getnatp(own), player->cnum);
+ relat = relations_with(own, player->cnum);
if (relat <= NEUTRAL
&& chance(dsect.sct_item[I_MILIT] / 200.0)) {
/* spy caught */
wu(0, own, "%s (#%d) spy caught in %s\n",
cname(player->cnum), player->cnum,
xyas(nx, ny, own));
+ nreport(player->cnum, N_SPY_SHOT, own, 1);
}
if (opt_HIDDEN)
setcont(own, player->cnum, FOUND_SPY);
}
/* spy report */
- insert(table, &t_len, nx, ny);
+ emp_setbit(nx, ny, bitmap);
spy_report(&dsect);
changed += map_set(player->cnum, dsect.sct_x, dsect.sct_y,
dchr[dsect.sct_type].d_mnem, 0);
setcont(player->cnum, own, FOUND_SPY);
}
/* subtract any military if necessary */
- if ((savemil != military) && (savemil > 0)) {
- if ((military < 0) || (military > savemil))
- military = 0;
+ if (from.sct_item[I_MILIT] != military) {
from.sct_item[I_MILIT] = military;
putsect(&from);
}
if (changed)
writemap(player->cnum);
player->btused += btucost;
- free(table);
+ free(bitmap);
return RET_OK;
}
static void
spy_report(struct sctstr *sp)
{
- prxy("%4d,%-4d", sp->sct_x, sp->sct_y, player->cnum);
- pr(" %c%c %3d %3d %3d %3d %3d %3d %4d %4d %4d %3d %4d %4d %4d %3d %3d\n",
+ prxy("%4d,%-4d", sp->sct_x, sp->sct_y);
+ pr(" %c%c %3d %3d %3d %3d %3d %3d %4d %4d %4d %3d %4d %4d %4d\n",
dchr[sp->sct_type].d_mnem,
sp->sct_newtype == sp->sct_type ? ' ' : dchr[sp->sct_newtype].d_mnem,
sp->sct_own,
sp->sct_oldown,
roundintby((int)sp->sct_effic, 10),
roundintby((int)sp->sct_road, 10),
- roundintby((int)sp->sct_rail, 10),
+ opt_RAILWAYS ? !!sct_rail_track(sp) : roundintby(sp->sct_rail, 10),
roundintby((int)sp->sct_defense, 10),
roundintby(sp->sct_item[I_CIVIL], 10),
roundintby(sp->sct_item[I_MILIT], 10),
roundintby(sp->sct_item[I_GUN], 10),
roundintby(sp->sct_item[I_PETROL], 10),
roundintby(sp->sct_item[I_FOOD], 10),
- roundintby(sp->sct_item[I_BAR], 10),
- count_sect_units(sp),
- count_sect_planes(sp));
+ roundintby(sp->sct_item[I_BAR], 10));
prunits(sp->sct_x, sp->sct_y);
prplanes(sp->sct_x, sp->sct_y);
}
-/*
- * insert a key into the table.
- */
-static void
-insert(coord *table, int *len, coord x, coord y)
-{
- if (!check(table, len, x, y)) {
- table[(*len)++] = x;
- table[(*len)++] = y;
- }
-}
-
-/*
- * see if a key is in the bitmask table
- */
-static int
-check(coord *table, int *len, coord x, coord y)
-{
- int i;
-
- for (i = 0; i < *len; i += 2)
- if (table[i] == x && table[i + 1] == y)
- return 1;
- return 0;
-}
-
-static int
-num_units(int x, int y)
-{
- struct lndstr land;
- struct nstr_item ni;
- int n = 0;
-
- snxtitem_xy(&ni, EF_LAND, x, y);
- while (nxtitem(&ni, &land)) {
- if ((land.lnd_own == player->cnum) || (land.lnd_own == 0))
- continue;
- if (land.lnd_ship >= 0 || land.lnd_land >= 0)
- continue;
- n++;
- }
-
- return n;
-}
-
static void
prunits(int x, int y)
{
if (!(chance(LND_SPY_DETECT_CHANCE(land.lnd_effic))))
continue;
}
- if ((land.lnd_own != player->cnum) && land.lnd_own) {
- int rel;
- char *relstr;
-
- rel = getrel(getnatp(player->cnum), land.lnd_own);
- if (rel == ALLIED)
- relstr = "Allied";
- else if (rel == FRIENDLY || rel == NEUTRAL)
- relstr = "Neutral";
- else
- relstr = "Enemy";
- sprintf(report, "%s (%s) unit in %s: ",
- relstr, cname(land.lnd_own),
- xyas(land.lnd_x, land.lnd_y, player->cnum));
- intelligence_report(player->cnum, &land, 3, report);
- }
+ sprintf(report, "%s (%s) unit in %s: ",
+ player_relstr(land.lnd_own),
+ cname(land.lnd_own),
+ xyas(land.lnd_x, land.lnd_y, player->cnum));
+ intelligence_report(player->cnum, &land, 3, report);
}
}
continue;
if (plane.pln_flags & PLN_LAUNCHED)
continue;
- if ((plane.pln_own != player->cnum) && plane.pln_own) {
- int rel;
- char *relstr;
-
- rel = getrel(getnatp(player->cnum), plane.pln_own);
- if (rel == ALLIED)
- relstr = "Allied";
- else if (rel == FRIENDLY || rel == NEUTRAL)
- relstr = "Neutral";
- else
- relstr = "Enemy";
- pr("%s (%s) plane in %s: %s\n",
- relstr, cname(plane.pln_own),
- xyas(plane.pln_x, plane.pln_y, player->cnum),
- prplane(&plane));
- }
+ pr("%s (%s) plane in %s: %s\n",
+ player_relstr(plane.pln_own),
+ cname(plane.pln_own),
+ xyas(plane.pln_x, plane.pln_y, player->cnum),
+ prplane(&plane));
}
}
+
+static char *
+player_relstr(natid them)
+{
+ int rel = relations_with(player->cnum, them);
+
+ if (rel == ALLIED)
+ return "Allied";
+ if (rel >= NEUTRAL)
+ return "Neutral";
+ return "Enemy";
+}
projects / empserver / blobdiff