104 lines
2.9 KiB
C
104 lines
2.9 KiB
C
/*
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* Empire - A multi-player, client/server Internet based war game.
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* Copyright (C) 1986-2009, 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 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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* foll.c: Set leader of a set of ships
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*
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* Known contributors to this file:
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* Robert Forsman
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*/
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#include <config.h>
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#include "commands.h"
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#include "optlist.h"
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#include "ship.h"
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int
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foll(void)
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{
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struct shpstr ship;
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char *cp;
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int good, leader, count = 0;
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coord x, y;
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struct nstr_item nstr;
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char buf[1024];
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if (!opt_SAIL) {
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pr("The SAIL option is not enabled, so this command is not valid.\n");
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return RET_FAIL;
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}
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if (!snxtitem(&nstr, EF_SHIP, player->argp[1], NULL))
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return RET_SYN;
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cp = getstarg(player->argp[2], "leader? ", buf);
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if (!cp)
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cp = "";
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good = sscanf(cp, "%d", &leader);
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if (!good)
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return RET_SYN;
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getship(leader, &ship);
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if (ship.shp_own != player->cnum &&
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getrel(getnatp(ship.shp_own), player->cnum) < FRIENDLY) {
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pr("That ship won't let you follow.\n");
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return RET_FAIL;
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}
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x = ship.shp_x;
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y = ship.shp_y;
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while (nxtitem(&nstr, &ship)) {
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if (!player->owner)
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continue;
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if (ship.shp_x != x || ship.shp_y != y) {
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pr("Ship #%d not in same sector as #%d\n",
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ship.shp_uid, leader);
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continue;
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}
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if (ship.shp_uid == leader) {
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pr("Ship #%d can't follow itself!\n", leader);
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continue;
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}
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if ((ship.shp_autonav & AN_AUTONAV)
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&& !(ship.shp_autonav & AN_STANDBY)) {
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pr("Ship #%d has other orders!\n", ship.shp_uid);
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continue;
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}
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count++;
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ship.shp_mission = 0;
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*ship.shp_path = 'f';
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ship.shp_path[1] = 0;
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ship.shp_follow = leader;
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pr("Ship #%d follows #%d.\n", ship.shp_uid, leader);
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putship(ship.shp_uid, &ship);
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}
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if (count == 0) {
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if (player->argp[1])
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pr("%s: No ship(s)\n", player->argp[1]);
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else
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pr("%s: No ship(s)\n", "");
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return RET_FAIL;
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} else
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pr("%d ship%s\n", count, splur(count));
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return RET_OK;
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}
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