Import of Empire 4.2.12
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d8b7fdfae1
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342
src/lib/subs/takeover.c
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342
src/lib/subs/takeover.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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* takeover.c: Take over from another country
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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, 1996-2000
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*/
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#include "misc.h"
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#include "var.h"
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#include "sect.h"
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#include "xy.h"
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#include "nsc.h"
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#include "nat.h"
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#include "plane.h"
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#include "land.h"
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#include "ship.h"
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#include "file.h"
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#include "prototypes.h"
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#include "optlist.h"
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#define CHE_MAX 255
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void takeover_land(register struct lndstr *landp, natid newown, int hostile);
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void takeover_plane(register struct plnstr *pp, natid newown);
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void
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takeover(register struct sctstr *sp, natid newown)
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{
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struct plnstr *pp;
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struct lndstr *lp;
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int civ;
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int che;
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int che_count;
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int oldche;
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int n, vec[I_MAX+1];
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double odds;
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struct nstr_item ni;
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struct plnstr p;
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struct lndstr land;
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extern double hap_fact(struct natstr *, struct natstr *);
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extern int etu_per_update;
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extern int sect_mob_neg_factor;
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/* Wipe all the distribution info */
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bzero((s_char *)vec, sizeof(vec));
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putvec(VT_DIST, vec, (s_char *)sp, EF_SECTOR);
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putvec(VT_DEL, vec, (s_char *)sp, EF_SECTOR);
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if (sp->sct_own == 0)
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sp->sct_off = 0;
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else
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sp->sct_off = 1;
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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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/* Take over planes */
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snxtitem_dist(&ni, EF_PLANE, sp->sct_x, sp->sct_y, 0);
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while (nxtitem(&ni, (caddr_t)pp)) {
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if (pp->pln_own != sp->sct_own)
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continue;
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takeover_plane(pp, newown);
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}
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/* Take over land units */
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lp = &land;
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snxtitem_dist(&ni, EF_LAND, sp->sct_x, sp->sct_y, 0);
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while (nxtitem(&ni, (caddr_t)lp)) {
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if ((lp->lnd_own == newown) || (lp->lnd_own == 0))
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continue;
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if (lp->lnd_own != sp->sct_own)
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continue;
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if (lp->lnd_ship >= 0 || lp->lnd_land >= 0)
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continue;
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/* Spies get a chance to hide */
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if (lchr[(int)lp->lnd_type].l_flags & L_SPY) {
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odds = (double)(100 - lp->lnd_effic) + 0.10;
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if (!(chance(odds)))
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continue;
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}
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n = lp->lnd_effic - (30 + (random() % 100));
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if (n < 0)
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n = 0;
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lp->lnd_effic = n;
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if (lp->lnd_effic < LAND_MINEFF) {
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lp->lnd_effic = 0;
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mpr(newown,"%s blown up by the crew!\n", prland(lp));
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wu(0, lp->lnd_own,
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"%s blown up by the crew when %s took %s!\n",
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prland(lp),
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cname(newown), xyas(lp->lnd_x, lp->lnd_y, lp->lnd_own));
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} else {
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mpr(newown, "We have captured %s!\n", prland(lp));
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wu(0, lp->lnd_own,
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"%s captured when %s took %s!\n",
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prland(lp),
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cname(newown), xyas(lp->lnd_x, lp->lnd_y, lp->lnd_own));
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}
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takeover_land(lp, newown, 1);
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}
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sp->sct_avail = 0;
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civ = getvar(V_CIVIL, (s_char *)sp, EF_SECTOR);
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oldche = get_che_value(getvar(V_CHE, (s_char *)sp, EF_SECTOR));
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/*
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* create guerrillas from civilians
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* how spunky are these guys?
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* n: random number from -25:75 + (50 - loyalty)
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*/
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n = (50 - sp->sct_loyal) + ((random() % 100) - 25);
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che_count = 0;
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che = 0;
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if (n > 0 && sp->sct_own == sp->sct_oldown) {
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che_count = (civ * n/3000) + 5;
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if (che_count * 2 > civ)
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che_count = civ / 2;
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che_count /= hap_fact(getnatp(newown),getnatp(sp->sct_own));
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if (che_count + oldche > CHE_MAX)
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che_count = CHE_MAX - oldche;
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if (che_count > 0) {
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civ -= che_count;
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che_count += oldche;
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} else
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che_count = oldche;
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} else
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che_count = oldche;
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set_che_value(che, che_count);
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if (newown != sp->sct_oldown)
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set_che_cnum(che, newown);
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(void) putvar(V_CHE, che, (s_char *)sp, EF_SECTOR);
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(void) putvar(V_CIVIL, civ, (s_char *)sp, EF_SECTOR);
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if (sp->sct_oldown == newown || civ == 0) {
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/*
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* taking over one of your old sectors
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*/
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sp->sct_loyal = 0;
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sp->sct_oldown = newown;
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} else {
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/*
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* taking over someone else's sector
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*/
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sp->sct_loyal = 50;
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}
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makelost(EF_SECTOR, sp->sct_own, 0, sp->sct_x, sp->sct_y);
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makenotlost(EF_SECTOR, newown, 0, sp->sct_x, sp->sct_y);
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sp->sct_own = newown;
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if (opt_MOB_ACCESS) {
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time(&sp->sct_access);
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sp->sct_mobil = -(etu_per_update / sect_mob_neg_factor);
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} else {
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sp->sct_mobil = 0;
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}
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}
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void
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takeover_plane(register struct plnstr *pp, natid newown)
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{
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int n;
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if ((pp->pln_own == newown) || (pp->pln_own == 0))
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return;
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if (pp->pln_flags & PLN_LAUNCHED)
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return;
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if (pp->pln_ship >= 0 || pp->pln_land >= 0)
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return;
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/*
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* XXX If this was done right, planes could escape,
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* flying to a nearby friendly airport.
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*/
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n = pp->pln_effic - (30 + (random() % 100));
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if (n < 0) n = 0;
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pp->pln_effic = n;
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if (pp->pln_effic < PLANE_MINEFF || pp->pln_harden > (s_char)0) {
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pp->pln_effic = 0;
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mpr(newown,"%s blown up by the crew!\n", prplane(pp));
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wu(0, pp->pln_own,
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"%s blown up by the crew to avoid capture by %s at %s!\n",
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prplane(pp),
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cname(newown), xyas(pp->pln_x, pp->pln_y, pp->pln_own));
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} else {
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mpr(newown, "We have captured %s!\n", prplane(pp));
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wu(0, pp->pln_own,
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"%s captured by %s at %s!\n",
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prplane(pp),
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cname(newown), xyas(pp->pln_x, pp->pln_y, pp->pln_own));
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}
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if (opt_MARKET)
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trdswitchown(EF_PLANE, (int *)pp, newown);
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if (pp->pln_mobil > (s_char)0)
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pp->pln_mobil = 0;
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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 = newown;
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makenotlost(EF_PLANE, pp->pln_own, pp->pln_uid, pp->pln_x, pp->pln_y);
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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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void
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takeover_ship(register struct shpstr *sp, natid newown, int hostile)
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{
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register struct plnstr *pp;
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register struct lndstr *lp;
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struct nstr_item ni;
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struct plnstr p;
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struct lndstr llp;
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if (opt_MARKET)
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trdswitchown(EF_SHIP, (int *)sp, newown);
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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 = newown;
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makenotlost(EF_SHIP, sp->shp_own, sp->shp_uid, sp->shp_x, sp->shp_y);
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sp->shp_mission = 0;
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sp->shp_fleet = ' ';
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sp->shp_rflags = 0;
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/* Keep track of when this was taken over */
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time(&sp->shp_access);
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bzero(sp->shp_rpath,RET_LEN);
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pp = &p;
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lp = &llp;
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/* Take over planes */
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snxtitem_all(&ni, EF_PLANE);
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while (nxtitem(&ni, (caddr_t)pp)) {
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if (pp->pln_ship != sp->shp_uid)
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continue;
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if (pp->pln_own == 0)
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continue;
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if (hostile) {
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if (pp->pln_effic > PLANE_MINEFF)
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pp->pln_effic = PLANE_MINEFF;
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}
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pp->pln_mobil = 0;
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/* Keep track of when this was taken over */
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time(&pp->pln_access);
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if (opt_MARKET)
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trdswitchown(EF_PLANE, (int *)pp, newown);
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pp->pln_mission = 0;
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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 = newown;
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makenotlost(EF_PLANE, pp->pln_own, pp->pln_uid, pp->pln_x, pp->pln_y);
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putplane(pp->pln_uid, pp);
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}
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/* Take over land units */
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snxtitem_all(&ni, EF_LAND);
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while (nxtitem(&ni, (caddr_t)lp)) {
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if (lp->lnd_ship != sp->shp_uid)
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continue;
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if (lp->lnd_own == 0)
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continue;
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takeover_land(lp, newown, hostile);
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}
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putship(sp->shp_uid, sp);
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}
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void
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takeover_land(register struct lndstr *landp, natid newown, int hostile)
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{
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register struct plnstr *pp;
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register struct lndstr *lp;
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struct nstr_item ni;
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struct plnstr p;
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struct lndstr llp;
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if (landp->lnd_effic < LAND_MINEFF) {
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putland(landp->lnd_uid, landp);
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return;
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}
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landp->lnd_army = ' ';
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landp->lnd_mobil = 0;
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landp->lnd_harden = 0;
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/* Keep track of when this was taken over */
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time(&landp->lnd_access);
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if (opt_MARKET)
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trdswitchown(EF_LAND, (int *)landp, newown);
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landp->lnd_mission = 0;
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makelost(EF_LAND, landp->lnd_own, landp->lnd_uid, landp->lnd_x, landp->lnd_y);
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landp->lnd_own = newown;
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makenotlost(EF_LAND, landp->lnd_own, landp->lnd_uid, landp->lnd_x, landp->lnd_y);
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pp = &p;
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lp = &llp;
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/* Take over planes */
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snxtitem_all(&ni, EF_PLANE);
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while (nxtitem(&ni, (caddr_t)pp)) {
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if (pp->pln_land != landp->lnd_uid)
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continue;
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if (pp->pln_own == 0)
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continue;
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if (hostile) {
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if (pp->pln_effic > PLANE_MINEFF)
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pp->pln_effic = PLANE_MINEFF;
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}
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pp->pln_mobil = 0;
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/* Keep track of when this was taken over */
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time(&pp->pln_access);
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if (opt_MARKET)
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trdswitchown(EF_PLANE, (int *)pp, newown);
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pp->pln_mission = 0;
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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 = newown;
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makenotlost(EF_PLANE, pp->pln_own, pp->pln_uid, pp->pln_x, pp->pln_y);
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putplane(pp->pln_uid, pp);
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}
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/* Take over land units */
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snxtitem_all(&ni, EF_LAND);
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while (nxtitem(&ni, (caddr_t)lp)) {
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if (lp->lnd_land != landp->lnd_uid)
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continue;
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if (lp->lnd_own == 0)
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continue;
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takeover_land(lp, newown, hostile);
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}
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putland(landp->lnd_uid, landp);
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}
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