empserver/src/lib/commands/arm.c

151 lines
4.3 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 the "LEGAL", "LICENSE", "CREDITS" and "README" files for all the
* related information and legal notices. It is expected that any future
* projects/authors will amend these files as needed.
*
* ---
*
* arm.c: Arm planes (missiles) with nuclear devices
*
* Known contributors to this file:
* Dave Pare, 1986
* Ken Stevens, 1995
* Steve McClure, 2000
*/
#include <config.h>
#include <string.h>
#include "misc.h"
#include "player.h"
#include "nuke.h"
#include "plane.h"
#include "xy.h"
#include "nsc.h"
#include "file.h"
#include "commands.h"
#include "optlist.h"
int
arm(void)
{
struct nchrstr *ncp;
struct plchrstr *plc;
struct plnstr pl;
struct plnstr start; /* Used for sanity checking */
struct nukstr nuke;
s_char *p;
int pno;
int nuketype;
int found;
struct nstr_item ni;
s_char buf[1024];
int disarm = **player->argp == 'd';
s_char *prompt = disarm ? "Disarm plane: " : "Arm plane: ";
if (!(p = getstarg(player->argp[1], prompt, buf)) || !*p)
return RET_SYN;
pno = atoi(p);
if (pno < 0 || !getplane(pno, &pl) || pl.pln_own != player->cnum)
return RET_FAIL;
memcpy(&start, &pl, sizeof(struct plnstr));
plc = &plchr[(int)pl.pln_type];
if ((plc->pl_flags & (P_O | P_M)) == (P_O | P_M)) {
pr("A %s cannot carry nuclear devices!\n", plc->pl_name);
return RET_FAIL;
}
if (opt_MARKET) {
if (ontradingblock(EF_PLANE, (int *)&pl)) {
pr("You cannot arm/disarm an item on the trading block!\n");
return RET_FAIL;
}
}
if (pl.pln_nuketype == -1) {
if (disarm) {
pr("%s is not carrying any nuclear devices\n", prplane(&pl));
return RET_FAIL;
}
if ((p = getstarg(player->argp[2], "Device type: ", buf)) == 0)
return RET_SYN;
if (!check_plane_ok(&start))
return RET_FAIL;
nuketype = typematch(p, EF_NUKE);
if (nuketype < 0) {
pr("No such nuke type!\n");
return RET_SYN;
}
ncp = &nchr[nuketype];
found = 0;
snxtitem_xy(&ni, EF_NUKE, pl.pln_x, pl.pln_y);
while (nxtitem(&ni, &nuke)) {
if (nuke.nuk_own == player->cnum) {
found = 1;
break;
}
}
if (!found) {
pr("You don't own any nukes in that sector.\n");
return RET_FAIL;
}
if (nuke.nuk_types[nuketype] == 0) {
pr("No nukes of that type in that sector.\n");
return RET_FAIL;
}
if (pl.pln_load < ncp->n_weight) {
pr("A %s cannot carry %s devices!\n", plc->pl_name,
ncp->n_name);
return RET_FAIL;
}
p = getstarg(player->argp[3], "Airburst [n]? ", buf);
if (!check_plane_ok(&start))
return RET_FAIL;
if (p && (*p == 'y' || *p == 'Y'))
pl.pln_flags |= PLN_AIRBURST;
else
pl.pln_flags &= ~PLN_AIRBURST;
pl.pln_nuketype = nuketype;
nuk_delete(&nuke, nuketype, 1);
} else if (!disarm) {
pr("%s already carrying a warhead.\n", prplane(&pl));
}
if (disarm) {
pr("%s warhead removed from %s and added to %s\n",
nchr[(int)pl.pln_nuketype].n_name,
prplane(&pl), xyas(pl.pln_x, pl.pln_y, player->cnum));
nuk_add(pl.pln_x, pl.pln_y, pl.pln_nuketype, 1);
pl.pln_nuketype = -1;
pl.pln_flags &= ~PLN_AIRBURST;
} else {
pr("%s armed with a %s warhead.\n", prplane(&pl),
nchr[(int)pl.pln_nuketype].n_name);
pr("Warhead on %s is programmed to %s\n",
prplane(&pl),
pl.pln_flags & PLN_AIRBURST ? "airburst" : "groundburst");
}
putplane(pl.pln_uid, &pl);
return RET_OK;
}