277 lines
7 KiB
C
277 lines
7 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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* 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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* Markus Armbruster, 2007-2008
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*/
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#include <config.h>
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#include "file.h"
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#include "empobj.h"
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#include "game.h"
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#include "land.h"
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#include "lost.h"
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#include "misc.h"
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#include "nat.h"
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#include "nsc.h"
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#include "optlist.h"
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#include "plane.h"
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#include "prototypes.h"
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#include "sect.h"
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#include "ship.h"
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#include "unit.h"
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#include "xy.h"
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static void takeover_unit(struct empobj *, natid);
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void
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takeover(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_count;
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int oldche;
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int n;
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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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/* 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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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_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 != 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_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 == 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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if (!(chance(LND_SPY_DETECT_CHANCE(lp->lnd_effic))))
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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);
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}
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sp->sct_avail = 0;
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civ = sp->sct_item[I_CIVIL];
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oldche = sp->sct_che;
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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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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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sp->sct_che = che_count;
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if (newown != sp->sct_oldown)
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sp->sct_che_target = newown;
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if (sp->sct_che_target == 0)
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sp->sct_che = 0;
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sp->sct_item[I_CIVIL] = civ;
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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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sp->sct_own = newown;
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if (opt_MOB_ACCESS) {
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game_tick_to_now(&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(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)
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n = 0;
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pp->pln_effic = n;
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if (pp->pln_effic < PLANE_MINEFF || pp->pln_harden > 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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takeover_unit((struct empobj *)pp, newown);
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}
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void
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takeover_ship(struct shpstr *sp, natid newown)
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{
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takeover_unit((struct empobj *)sp, newown);
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}
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void
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takeover_land(struct lndstr *landp, natid newown)
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{
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takeover_unit((struct empobj *)landp, newown);
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}
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static void
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takeover_unit(struct empobj *unit, natid newown)
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{
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struct shpstr *sp;
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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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int type;
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struct nstr_item ni;
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union empobj_storage cargo;
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unit->own = newown;
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if (opt_MARKET)
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trdswitchown(unit->ef_type, unit, newown);
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unit_wipe_orders(unit);
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switch (unit->ef_type) {
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case EF_SHIP:
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sp = (struct shpstr *)unit;
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sp->shp_off = 1;
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break;
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case EF_PLANE:
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pp = (struct plnstr *)unit;
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if (pp->pln_mobil > 0)
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pp->pln_mobil = 0;
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pp->pln_off = 1;
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break;
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case EF_LAND:
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lp = (struct lndstr *)unit;
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if (lp->lnd_mobil > 0)
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lp->lnd_mobil = 0;
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lp->lnd_off = 1;
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lp->lnd_harden = 0;
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break;
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case EF_NUKE:
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np = (struct nukstr *)unit;
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np->nuk_off = 1;
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break;
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default:
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CANT_REACH();
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}
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put_empobj(unit->ef_type, unit->uid, unit);
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for (type = EF_PLANE; type <= EF_NUKE; type++) {
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snxtitem_cargo(&ni, type, unit->ef_type, unit->uid);
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while (nxtitem(&ni, &cargo)) {
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if (cargo.gen.own == newown)
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continue;
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if (type == EF_PLANE)
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cargo.plane.pln_effic = PLANE_MINEFF;
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takeover_unit(&cargo.gen, newown);
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}
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}
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}
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