Import of Empire 4.2.12
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src/lib/commands/arm.c
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164
src/lib/commands/arm.c
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/*
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* Empire - A multi-player, client/server Internet based war game.
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* Copyright (C) 1986-2000, Dave Pare, Jeff Bailey, Thomas Ruschak,
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* Ken Stevens, Steve McClure
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*
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* This program 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 2 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, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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* ---
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*
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* See the "LEGAL", "LICENSE", "CREDITS" and "README" files for all the
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* related information and legal notices. It is expected that any future
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* projects/authors will amend these files as needed.
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*
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* ---
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*
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* arm.c: Arm planes (missiles) with nuclear devices
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*
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* Known contributors to this file:
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* Dave Pare, 1986
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* Ken Stevens, 1995
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* Steve McClure, 2000
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*/
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#ifdef Rel4
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#include <string.h>
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#endif /* Rel4 */
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#include "misc.h"
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#include "player.h"
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#include "var.h"
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#include "sect.h"
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#include "nuke.h"
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#include "plane.h"
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#include "xy.h"
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#include "nsc.h"
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#include "file.h"
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#include "nat.h"
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#include "commands.h"
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#include "optlist.h"
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int
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arm(void)
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{
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struct nchrstr *ncp;
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struct plchrstr *plc;
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struct plnstr pl;
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struct plnstr start; /* Used for sanity checking */
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struct nukstr nuke;
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s_char *p;
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int i;
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int pno;
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int nuketype;
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int nukenum;
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int len;
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struct nstr_item ni;
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s_char buf[1024];
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int disarm = **player->argp=='d';
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s_char *prompt = disarm?"Disarm plane: ":"Arm plane: ";
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if (!(p = getstarg(player->argp[1], prompt, buf)) || !*p)
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return RET_SYN;
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pno = atoi(p);
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if (pno < 0 || !getplane(pno, &pl) || pl.pln_own != player->cnum)
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return RET_FAIL;
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memcpy(&start, &pl, sizeof(struct plnstr));
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plc = &plchr[(int)pl.pln_type];
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if ((plc->pl_flags & (P_O | P_M)) == (P_O | P_M)) {
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pr("A %s cannot carry nuclear devices!\n",plc->pl_name);
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return RET_FAIL;
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}
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if (opt_MARKET) {
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if (ontradingblock(EF_PLANE, (int *)&pl)) {
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pr("You cannot arm/disarm an item on the trading block!\n");
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return RET_FAIL;
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}
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}
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if (pl.pln_nuketype == -1) {
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if (disarm) {
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pr("%s is not carrying any nuclear devices\n",
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prplane(&pl));
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return RET_FAIL;
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}
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if ((p = getstarg(player->argp[2], "Device type: ", buf)) == 0)
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return RET_SYN;
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if (!check_plane_ok(&start))
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return RET_FAIL;
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len = strlen(p);
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for (i=0, ncp = nchr; i<N_MAXNUKE; i++, ncp++) {
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if (strncmp(ncp->n_name, p, len) == 0)
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break;
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}
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if (i >= N_MAXNUKE) {
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pr("No such nuke type!\n");
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return RET_SYN;
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}
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nuketype = i;
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nukenum = -1;
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snxtitem_all(&ni, EF_NUKE);
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while (nxtitem(&ni, (s_char *)&nuke)) {
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if (nuke.nuk_own != player->cnum)
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continue;
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if (nuke.nuk_x != pl.pln_x || nuke.nuk_y != pl.pln_y)
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continue;
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nukenum = ni.cur;
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break;
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}
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if (nukenum < 0) {
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pr("You don't own any nukes in that sector.\n");
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return RET_FAIL;
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}
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if (nuke.nuk_types[nuketype] == 0) {
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pr("No nukes of that type in that sector.\n");
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return RET_FAIL;
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}
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if (pl.pln_load < ncp->n_weight) {
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pr("A %s cannot carry %s devices!\n", plc->pl_name,ncp->n_name);
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return RET_FAIL;
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}
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p = getstarg(player->argp[3], "Airburst [n]? ", buf);
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if (!check_plane_ok(&start))
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return RET_FAIL;
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if (p && (*p == 'y' || *p == 'Y'))
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pl.pln_flags |= PLN_AIRBURST;
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else
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pl.pln_flags &= ~PLN_AIRBURST;
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pl.pln_nuketype = nuketype;
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nuk_delete(&nuke, nuketype, 1);
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} else if (!disarm) {
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pr("%s already carrying a warhead.\n", prplane(&pl));
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}
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if (disarm) {
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pr("%s warhead removed from %s and added to %s\n",
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nchr[(int)pl.pln_nuketype].n_name,
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prplane(&pl),
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xyas(pl.pln_x, pl.pln_y, player->cnum));
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nuk_add(pl.pln_x, pl.pln_y, pl.pln_nuketype, 1);
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pl.pln_nuketype = -1;
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pl.pln_flags &= ~PLN_AIRBURST;
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} else {
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pr("%s armed with a %s warhead.\n", prplane(&pl),
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nchr[(int)pl.pln_nuketype].n_name);
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pr("Warhead on %s is programmed to %s\n",
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prplane(&pl),
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pl.pln_flags & PLN_AIRBURST?
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"airburst":"groundburst");
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}
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putplane(pl.pln_uid, &pl);
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return RET_OK;
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}
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