262 lines
7 KiB
C
262 lines
7 KiB
C
/*
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* Empire - A multi-player, client/server Internet based war game.
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* Copyright (C) 1986-2016, Dave Pare, Jeff Bailey, Thomas Ruschak,
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* Ken Stevens, Steve McClure, Markus Armbruster
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*
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* Empire is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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* ---
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*
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* See files README, COPYING and CREDITS in the root of the source
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* tree for related information and legal notices. It is expected
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* that future projects/authors will amend these files as needed.
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*
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* ---
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*
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* spy.c: Spy on your neighbors
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*
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* Known contributors to this file:
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* Dave Pare, 1986
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* Steve McClure, 1998-2000
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* Markus Armbruster, 2005-2013
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*/
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#include <config.h>
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#include "chance.h"
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#include "commands.h"
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#include "item.h"
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#include "land.h"
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#include "map.h"
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#include "news.h"
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#include "optlist.h"
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#include "path.h"
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#include "plane.h"
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/*
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* format: spy <SECTS>
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*/
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static void spy_report(struct sctstr *sp);
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static void prplanes(int, int);
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static void prunits(int, int);
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static char *player_relstr(natid);
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int
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spy(void)
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{
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natid own;
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enum relations relat;
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coord x, y;
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coord nx, ny;
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int military;
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int btucost;
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int i;
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unsigned char *bitmap;
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int nrecon;
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struct nstr_sect nstr;
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struct nstr_item ni;
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struct natstr *natp;
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struct sctstr from;
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struct sctstr dsect;
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struct lndstr land;
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int changed = 0;
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int nsects;
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/*
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* first arg should be the range of sectors
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*/
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if (!snxtsct(&nstr, player->argp[1]))
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return RET_SYN;
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nsects = (nstr.range.width + 1) * nstr.range.height / 2;
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btucost = (nsects / 40) + 1;
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natp = getnatp(player->cnum);
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if (natp->nat_btu < btucost) {
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pr("You don't have the BTU's for spying on that scale!\n");
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return RET_FAIL;
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}
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bitmap = calloc((WORLD_SZ() + 7) / 8, 1);
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if (!bitmap) {
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logerror("malloc failed in do_look\n");
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pr("Memory error. Tell the deity.\n");
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return RET_FAIL;
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}
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pr("SPY report\n");
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prdate();
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pr(" old sct rd rl def\n");
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pr(" sect de own own eff eff eff eff civ mil shl gun pet food bars\n");
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while (nxtsct(&nstr, &from)) {
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if (!player->owner && !player->god)
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continue;
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military = from.sct_item[I_MILIT];
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if (military == 0)
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continue;
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x = from.sct_x;
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y = from.sct_y;
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nrecon = 0;
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snxtitem_xy(&ni, EF_LAND, x, y);
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while (nxtitem(&ni, &land)) {
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if (lchr[(int)land.lnd_type].l_flags & L_RECON)
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nrecon++;
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}
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/* Print out the units/planes in this sector */
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prunits(x, y);
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prplanes(x, y);
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/*
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* check the neighboring sectors.
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*/
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for (i = 1; i <= 6; i++) {
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if (military == 0)
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break;
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nx = x + diroff[i][0];
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ny = y + diroff[i][1];
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if (emp_getbit(nx, ny, bitmap))
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continue; /* spied already */
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getsect(nx, ny, &dsect);
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if (player->owner || dsect.sct_type == SCT_WATER)
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continue;
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own = dsect.sct_own;
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relat = relations_with(own, player->cnum);
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if (relat <= NEUTRAL
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&& chance(dsect.sct_item[I_MILIT] / 200.0)) {
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/* spy caught */
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if (relat == NEUTRAL) {
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/* deport spy */
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pr("Spy deported from %s\n",
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xyas(nx, ny, player->cnum));
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if (own != 0)
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wu(0, own, "%s spy deported from %s\n",
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prnat(natp), xyas(nx, ny, own));
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} else {
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/* execute spy */
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pr("BANG!! A spy was shot in %s\n",
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xyas(nx, ny, player->cnum));
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military--;
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if (own != 0)
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wu(0, own, "%s spy caught in %s\n",
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prnat(natp), xyas(nx, ny, own));
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nreport(player->cnum, N_SPY_SHOT, own, 1);
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}
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if (opt_HIDDEN)
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setcont(own, player->cnum, FOUND_SPY);
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if (!nrecon) /* unless you have a recon unit */
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continue; /* no report from caught spy */
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}
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/* spy report */
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emp_setbit(nx, ny, bitmap);
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spy_report(&dsect);
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changed += map_set(player->cnum, dsect.sct_x, dsect.sct_y,
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dchr[dsect.sct_type].d_mnem, 0);
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if (opt_HIDDEN)
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setcont(player->cnum, own, FOUND_SPY);
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}
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/* subtract any military if necessary */
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if (from.sct_item[I_MILIT] != military) {
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from.sct_item[I_MILIT] = military;
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putsect(&from);
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}
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}
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if (changed)
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writemap(player->cnum);
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player->btused += btucost;
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free(bitmap);
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return RET_OK;
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}
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static void
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spy_report(struct sctstr *sp)
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{
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prxy("%4d,%-4d", sp->sct_x, sp->sct_y);
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pr(" %c%c %3d %3d %3d %3d %3d %3d %4d %4d %4d %3d %4d %4d %4d\n",
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dchr[sp->sct_type].d_mnem,
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sp->sct_newtype == sp->sct_type ? ' ' : dchr[sp->sct_newtype].d_mnem,
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sp->sct_own,
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sp->sct_oldown,
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roundintby((int)sp->sct_effic, 10),
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roundintby((int)sp->sct_road, 10),
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opt_RAILWAYS ? !!sct_rail_track(sp) : roundintby(sp->sct_rail, 10),
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roundintby((int)sp->sct_defense, 10),
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roundintby(sp->sct_item[I_CIVIL], 10),
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roundintby(sp->sct_item[I_MILIT], 10),
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roundintby(sp->sct_item[I_SHELL], 10),
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roundintby(sp->sct_item[I_GUN], 10),
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roundintby(sp->sct_item[I_PETROL], 10),
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roundintby(sp->sct_item[I_FOOD], 10),
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roundintby(sp->sct_item[I_BAR], 10));
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prunits(sp->sct_x, sp->sct_y);
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prplanes(sp->sct_x, sp->sct_y);
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}
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static void
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prunits(int x, int y)
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{
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struct lndstr land;
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struct nstr_item ni;
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char report[128];
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snxtitem_xy(&ni, EF_LAND, x, y);
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while (nxtitem(&ni, &land)) {
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if (land.lnd_own == player->cnum || land.lnd_own == 0)
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continue;
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if (land.lnd_ship >= 0 || land.lnd_land >= 0)
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continue;
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/* Don't always see spies */
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if (lchr[(int)land.lnd_type].l_flags & L_SPY) {
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if (!(chance(LND_SPY_DETECT_CHANCE(land.lnd_effic))))
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continue;
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}
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sprintf(report, "%s (%s) unit in %s: ",
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player_relstr(land.lnd_own),
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cname(land.lnd_own),
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xyas(land.lnd_x, land.lnd_y, player->cnum));
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intelligence_report(player->cnum, &land, 3, report);
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}
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}
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static void
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prplanes(int x, int y)
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{
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struct plnstr plane;
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struct nstr_item ni;
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snxtitem_xy(&ni, EF_PLANE, x, y);
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while (nxtitem(&ni, &plane)) {
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if (plane.pln_own == player->cnum || plane.pln_own == 0)
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continue;
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if (plane.pln_ship >= 0 || plane.pln_land >= 0)
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continue;
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if (plane.pln_flags & PLN_LAUNCHED)
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continue;
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pr("%s (%s) plane in %s: %s\n",
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player_relstr(plane.pln_own),
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cname(plane.pln_own),
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xyas(plane.pln_x, plane.pln_y, player->cnum),
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prplane(&plane));
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}
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}
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static char *
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player_relstr(natid them)
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{
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enum relations rel = relations_with(player->cnum, them);
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if (rel == ALLIED)
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return "Allied";
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if (rel >= NEUTRAL)
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return "Neutral";
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return "Enemy";
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}
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