Markus Armbruster
3d2518a724
There are several files with land unit subroutines. This one is in an awkward place: it depends on stuff from ../subs, which contributes to libcommon.a's ugly dependencies. Move its contents to logical places (use internal linkage where possible), and remove it.
392 lines
9.6 KiB
C
392 lines
9.6 KiB
C
/*
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* Empire - A multi-player, client/server Internet based war game.
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* Copyright (C) 1986-2008, 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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* cede.c: Give a sector to a neighbor
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*
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* Known contributors to this file:
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* Dave Pare
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* Thomas Ruschak
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*/
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#include <config.h>
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#include "commands.h"
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#include "land.h"
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#include "lost.h"
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#include "nuke.h"
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#include "path.h"
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#include "plane.h"
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#include "ship.h"
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static int has_units_with_mob(coord, coord, natid);
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static void cede_hdr(void);
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static int cede_sect(struct nstr_sect *, natid);
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static int cede_ship(struct nstr_item *, natid);
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static void grab_sect(struct sctstr *, natid);
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static void grab_ship(struct shpstr *, natid);
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int
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cede(void)
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{
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static int sct_or_shp[] = { EF_SECTOR, EF_SHIP, EF_BAD };
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natid to;
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int n;
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int is_sector = 0, is_ship = 0;
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char *p;
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struct nstr_sect ns;
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struct nstr_item ni;
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struct natstr *natp;
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char buf[1024];
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if ((p = getstarg(player->argp[1], "Cede what? ", buf)) == 0)
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return RET_SYN;
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if (snxtsct(&ns, p))
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is_sector = 1;
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if (snxtitem(&ni, EF_SHIP, p))
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is_ship = 1;
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if (!is_sector && !is_ship)
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return RET_SYN;
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if ((n = natarg(player->argp[2], "to which country? ")) < 0)
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return RET_SYN;
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if (is_sector && is_ship) {
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int type;
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if ((p =
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getstarg(player->argp[3], "Cede sectors or ships (se, sh)? ",
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buf)) == 0)
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return RET_FAIL;
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if (strlen(p) > 4)
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p[2] = 0;
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type = ef_byname_from(p, sct_or_shp);
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if (type < 0) {
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pr("Please type 'se' or 'sh'!\n");
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return RET_FAIL;
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}
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}
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if (n == player->cnum) {
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pr("Giving something to yourself?\n");
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return RET_FAIL;
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}
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natp = getnatp(n);
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if (natp->nat_stat != STAT_ACTIVE) {
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pr("You can only give to normal countries...\n");
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return RET_FAIL;
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}
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if (getrel(natp, player->cnum) < FRIENDLY) {
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pr("You can only cede to a country that is friendly towards you...\n");
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return RET_FAIL;
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}
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to = n;
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if (is_sector)
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return cede_sect(&ns, to);
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else
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return cede_ship(&ni, to);
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}
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static int
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cede_sect(struct nstr_sect *ns, natid to)
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{
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struct sctstr sect, osect;
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int nsect;
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int n, bad;
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int off_x, off_y;
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struct nstr_item ni;
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struct shpstr ship;
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prdate();
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nsect = 0;
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while (nxtsct(ns, §)) {
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if (!player->owner)
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continue;
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if (sect.sct_mobil == 0) {
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pr("%s has no mobility and cannot be ceded\n",
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xyas(sect.sct_x, sect.sct_y, player->cnum));
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continue;
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}
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bad = 1;
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for (n = 1; n <= 6; n++) { /* Directions */
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off_x = sect.sct_x + diroff[n][0];
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off_y = sect.sct_y + diroff[n][1];
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if (!getsect(off_x, off_y, &osect))
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continue;
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if ((osect.sct_own == to) && (osect.sct_mobil))
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bad = 0;
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if ((osect.sct_own == to) &&
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has_units_with_mob(osect.sct_x, osect.sct_y, to))
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bad = 0;
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}
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snxtitem_all(&ni, EF_SHIP);
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while (nxtitem(&ni, &ship)) {
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if ((ship.shp_own == to) &&
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((ship.shp_x == sect.sct_x) && (ship.shp_y == sect.sct_y)))
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bad = 0;
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}
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if (bad) {
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pr("%s has no sector with mobility adjacent to or ship in %s!\n",
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cname(to), xyas(sect.sct_x, sect.sct_y, player->cnum));
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continue;
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}
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if (nsect++ == 0)
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cede_hdr();
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grab_sect(§, to);
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putsect(§);
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pr(" %s %d%% ceded\n", xyas(sect.sct_x, sect.sct_y, player->cnum),
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(int)sect.sct_effic);
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wu(0, (natid)to, "%s ceded to you by %s\n",
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xyas(sect.sct_x, sect.sct_y, to), cname(player->cnum));
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}
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pr("%d sector%s\n", nsect, splur(nsect));
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return RET_OK;
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}
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static int
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has_units_with_mob(coord x, coord y, natid cn)
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{
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struct nstr_item ni;
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struct lndstr land;
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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 != cn)
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continue;
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if (land.lnd_mobil > 0)
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return 1;
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}
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return 0;
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}
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static void
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cede_hdr(void)
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{
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if (player->god)
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pr("own ");
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pr(" sect eff\n");
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}
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static void
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grab_sect(struct sctstr *sp, natid to)
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{
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struct plnstr *pp;
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struct lndstr *lp;
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struct nukstr *np;
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struct nstr_item ni;
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struct plnstr p;
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struct lndstr l;
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struct nukstr nuk;
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/* Wipe all the distribution info */
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memset(sp->sct_dist, 0, sizeof(sp->sct_dist));
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memset(sp->sct_del, 0, sizeof(sp->sct_del));
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sp->sct_dist_x = sp->sct_x;
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sp->sct_dist_y = sp->sct_y;
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pp = &p;
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snxtitem_xy(&ni, EF_PLANE, sp->sct_x, sp->sct_y);
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while (nxtitem(&ni, pp)) {
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if (pp->pln_own == 0)
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continue;
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if (pp->pln_ship >= 0)
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continue;
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if (pp->pln_own != player->cnum)
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continue;
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if (pp->pln_flags & PLN_LAUNCHED)
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continue;
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wu(0, to, "\t%s ceded to you by %s\n",
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prplane(pp), cname(player->cnum));
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makelost(EF_PLANE, pp->pln_own, pp->pln_uid, pp->pln_x, pp->pln_y);
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pp->pln_own = to;
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makenotlost(EF_PLANE, pp->pln_own, pp->pln_uid,
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pp->pln_x, pp->pln_y);
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pp->pln_mobil = 0;
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pp->pln_mission = 0;
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putplane(pp->pln_uid, pp);
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}
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np = &nuk;
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snxtitem_xy(&ni, EF_NUKE, sp->sct_x, sp->sct_y);
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while (nxtitem(&ni, np)) {
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if (np->nuk_own == 0)
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continue;
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wu(0, to, "\t%s ceded to you by %s\n",
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prnuke(np), cname(player->cnum));
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makelost(EF_NUKE, np->nuk_own, np->nuk_uid, np->nuk_x, np->nuk_y);
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np->nuk_own = to;
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makenotlost(EF_NUKE, np->nuk_own, np->nuk_uid,
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np->nuk_x, np->nuk_y);
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putnuke(ni.cur, np);
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}
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lp = &l;
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snxtitem_xy(&ni, EF_LAND, sp->sct_x, sp->sct_y);
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while (nxtitem(&ni, lp)) {
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if (lp->lnd_own == 0)
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continue;
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if (lp->lnd_ship == 0)
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continue;
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if (lp->lnd_own != player->cnum)
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continue;
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wu(0, to, "\t%s ceded to you by %s\n",
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prland(lp), cname(player->cnum));
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makelost(EF_LAND, lp->lnd_own, lp->lnd_uid, lp->lnd_x, lp->lnd_y);
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makenotlost(EF_LAND, to, lp->lnd_uid, lp->lnd_x, lp->lnd_y);
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lp->lnd_own = to;
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lp->lnd_mobil = 0;
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lp->lnd_mission = 0;
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putland(ni.cur, lp);
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}
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sp->sct_avail = 0;
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if (sp->sct_oldown == to) {
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sp->sct_che = 0; /* FIXME where do these guys go? */
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sp->sct_che_target = 0;
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sp->sct_loyal = 0;
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}
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if (sp->sct_oldown == to)
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sp->sct_loyal = 0;
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else /* people don't like being given away */
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sp->sct_loyal = 50;
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sp->sct_dist_x = sp->sct_x;
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sp->sct_dist_y = sp->sct_y;
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makelost(EF_SECTOR, sp->sct_own, 0, sp->sct_x, sp->sct_y);
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makenotlost(EF_SECTOR, to, 0, sp->sct_x, sp->sct_y);
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if (sp->sct_oldown == sp->sct_own)
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sp->sct_oldown = to;
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sp->sct_own = to;
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sp->sct_mobil = 0;
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}
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static int
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cede_ship(struct nstr_item *ni, natid to)
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{
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struct shpstr ship;
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struct shpstr tship;
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struct sctstr sect;
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struct nstr_item tni;
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int nships = 0;
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int bad = 0;
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while (nxtitem(ni, &ship)) {
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if (!player->owner || ship.shp_own == 0)
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continue;
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bad = 1;
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snxtitem_xy(&tni, EF_SHIP, ship.shp_x, ship.shp_y);
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while (nxtitem(&tni, &tship) && bad)
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if (tship.shp_own == to)
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bad = 0;
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getsect(ship.shp_x, ship.shp_y, §);
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if (bad && (sect.sct_own != to)) {
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pr("%s isn't in a %s sector, and is not with a %s ship!\n",
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prship(&ship), cname(to), cname(to));
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continue;
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}
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grab_ship(&ship, to);
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putship(ship.shp_uid, &ship);
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nships++;
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wu(0, to, "%s ceded to you by %s\n",
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prship(&ship), cname(player->cnum));
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pr("%s ceded to %s\n", prship(&ship), cname(to));
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}
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pr(" %d ship%s\n", nships, splur(nships));
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return RET_OK;
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}
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static void
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grab_ship(struct shpstr *sp, natid to)
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{
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struct plnstr *pp;
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struct lndstr *lp;
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struct nstr_item ni;
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struct plnstr p;
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struct lndstr l;
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pp = &p;
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snxtitem_xy(&ni, EF_PLANE, sp->shp_x, sp->shp_y);
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while (nxtitem(&ni, pp)) {
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if (pp->pln_own == 0)
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continue;
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if (pp->pln_flags & PLN_LAUNCHED)
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continue;
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if (pp->pln_ship != sp->shp_uid)
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continue;
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if (pp->pln_own != player->cnum)
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continue;
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wu(0, to, "\t%s ceded to you by %s\n",
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prplane(pp), cname(player->cnum));
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makelost(EF_PLANE, pp->pln_own, pp->pln_uid, pp->pln_x, pp->pln_y);
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pp->pln_own = to;
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makenotlost(EF_PLANE, pp->pln_own, pp->pln_uid,
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pp->pln_x, pp->pln_y);
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pp->pln_mobil = 0;
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pp->pln_mission = 0;
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putplane(pp->pln_uid, pp);
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}
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lp = &l;
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snxtitem_xy(&ni, EF_LAND, sp->shp_x, sp->shp_y);
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while (nxtitem(&ni, lp)) {
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if (lp->lnd_own == 0)
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continue;
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if (lp->lnd_ship != sp->shp_uid)
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continue;
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if (lp->lnd_own != player->cnum)
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continue;
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wu(0, to, "\t%s ceded to you by %s\n",
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prland(lp), cname(player->cnum));
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makelost(EF_LAND, lp->lnd_own, lp->lnd_uid, lp->lnd_x, lp->lnd_y);
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makenotlost(EF_LAND, to, lp->lnd_uid, lp->lnd_x, lp->lnd_y);
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lp->lnd_own = to;
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lp->lnd_mobil = 0;
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lp->lnd_mission = 0;
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putland(ni.cur, lp);
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}
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makelost(EF_SHIP, sp->shp_own, sp->shp_uid, sp->shp_x, sp->shp_y);
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sp->shp_own = to;
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makenotlost(EF_SHIP, sp->shp_own, sp->shp_uid, sp->shp_x, sp->shp_y);
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}
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