2 * Empire - A multi-player, client/server Internet based war game.
3 * Copyright (C) 1986-2000, Dave Pare, Jeff Bailey, Thomas Ruschak,
4 * Ken Stevens, Steve McClure
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
22 * See the "LEGAL", "LICENSE", "CREDITS" and "README" files for all the
23 * related information and legal notices. It is expected that any future
24 * projects/authors will amend these files as needed.
28 * takeover.c: Take over from another country
30 * Known contributors to this file:
32 * Steve McClure, 1996-2000
45 #include "prototypes.h"
50 void takeover_land(register struct lndstr *landp, natid newown,
52 void takeover_plane(register struct plnstr *pp, natid newown);
55 takeover(register struct sctstr *sp, natid newown)
63 int n, vec[I_MAX + 1];
67 extern int etu_per_update;
68 extern int sect_mob_neg_factor;
70 /* Wipe all the distribution info */
71 memset(vec, 0, sizeof(vec));
72 putvec(VT_DIST, vec, (s_char *)sp, EF_SECTOR);
73 putvec(VT_DEL, vec, (s_char *)sp, EF_SECTOR);
78 sp->sct_dist_x = sp->sct_x;
79 sp->sct_dist_y = sp->sct_y;
82 /* Take over planes */
83 snxtitem_dist(&ni, EF_PLANE, sp->sct_x, sp->sct_y, 0);
84 while (nxtitem(&ni, (caddr_t)pp)) {
85 if (pp->pln_own != sp->sct_own)
87 takeover_plane(pp, newown);
90 /* Take over land units */
92 snxtitem_dist(&ni, EF_LAND, sp->sct_x, sp->sct_y, 0);
93 while (nxtitem(&ni, (caddr_t)lp)) {
94 if ((lp->lnd_own == newown) || (lp->lnd_own == 0))
96 if (lp->lnd_own != sp->sct_own)
98 if (lp->lnd_ship >= 0 || lp->lnd_land >= 0)
100 /* Spies get a chance to hide */
101 if (lchr[(int)lp->lnd_type].l_flags & L_SPY) {
102 if (!(chance(LND_SPY_DETECT_CHANCE(lp->lnd_effic))))
105 n = lp->lnd_effic - (30 + (random() % 100));
109 if (lp->lnd_effic < LAND_MINEFF) {
111 mpr(newown, "%s blown up by the crew!\n", prland(lp));
113 "%s blown up by the crew when %s took %s!\n",
115 cname(newown), xyas(lp->lnd_x, lp->lnd_y, lp->lnd_own));
117 mpr(newown, "We have captured %s!\n", prland(lp));
119 "%s captured when %s took %s!\n",
121 cname(newown), xyas(lp->lnd_x, lp->lnd_y, lp->lnd_own));
123 takeover_land(lp, newown, 1);
127 civ = getvar(V_CIVIL, (s_char *)sp, EF_SECTOR);
128 oldche = get_che_value(getvar(V_CHE, (s_char *)sp, EF_SECTOR));
130 * create guerrillas from civilians
131 * how spunky are these guys?
132 * n: random number from -25:75 + (50 - loyalty)
134 n = (50 - sp->sct_loyal) + ((random() % 100) - 25);
137 if (n > 0 && sp->sct_own == sp->sct_oldown) {
138 che_count = (civ * n / 3000) + 5;
139 if (che_count * 2 > civ)
141 che_count /= hap_fact(getnatp(newown), getnatp(sp->sct_own));
142 if (che_count + oldche > CHE_MAX)
143 che_count = CHE_MAX - oldche;
151 set_che_value(che, che_count);
152 if (newown != sp->sct_oldown)
153 set_che_cnum(che, newown);
154 (void)putvar(V_CHE, che, (s_char *)sp, EF_SECTOR);
155 (void)putvar(V_CIVIL, civ, (s_char *)sp, EF_SECTOR);
156 if (sp->sct_oldown == newown || civ == 0) {
158 * taking over one of your old sectors
161 sp->sct_oldown = newown;
164 * taking over someone else's sector
168 makelost(EF_SECTOR, sp->sct_own, 0, sp->sct_x, sp->sct_y);
169 makenotlost(EF_SECTOR, newown, 0, sp->sct_x, sp->sct_y);
170 sp->sct_own = newown;
171 if (opt_MOB_ACCESS) {
172 time(&sp->sct_access);
173 sp->sct_mobil = -(etu_per_update / sect_mob_neg_factor);
180 takeover_plane(register struct plnstr *pp, natid newown)
184 if ((pp->pln_own == newown) || (pp->pln_own == 0))
186 if (pp->pln_flags & PLN_LAUNCHED)
188 if (pp->pln_ship >= 0 || pp->pln_land >= 0)
191 * XXX If this was done right, planes could escape,
192 * flying to a nearby friendly airport.
194 n = pp->pln_effic - (30 + (random() % 100));
198 if (pp->pln_effic < PLANE_MINEFF || pp->pln_harden > (s_char)0) {
200 mpr(newown, "%s blown up by the crew!\n", prplane(pp));
202 "%s blown up by the crew to avoid capture by %s at %s!\n",
204 cname(newown), xyas(pp->pln_x, pp->pln_y, pp->pln_own));
206 mpr(newown, "We have captured %s!\n", prplane(pp));
208 "%s captured by %s at %s!\n",
210 cname(newown), xyas(pp->pln_x, pp->pln_y, pp->pln_own));
213 trdswitchown(EF_PLANE, (int *)pp, newown);
214 if (pp->pln_mobil > (s_char)0)
216 makelost(EF_PLANE, pp->pln_own, pp->pln_uid, pp->pln_x, pp->pln_y);
217 pp->pln_own = newown;
218 makenotlost(EF_PLANE, pp->pln_own, pp->pln_uid, pp->pln_x, pp->pln_y);
220 putplane(pp->pln_uid, pp);
224 takeover_ship(register struct shpstr *sp, natid newown, int hostile)
226 register struct plnstr *pp;
227 register struct lndstr *lp;
233 trdswitchown(EF_SHIP, (int *)sp, newown);
234 makelost(EF_SHIP, sp->shp_own, sp->shp_uid, sp->shp_x, sp->shp_y);
235 sp->shp_own = newown;
236 makenotlost(EF_SHIP, sp->shp_own, sp->shp_uid, sp->shp_x, sp->shp_y);
240 /* Keep track of when this was taken over */
241 time(&sp->shp_access);
242 memset(sp->shp_rpath, 0, sizeof(sp->shp_rpath));
245 /* Take over planes */
246 snxtitem_all(&ni, EF_PLANE);
247 while (nxtitem(&ni, (caddr_t)pp)) {
248 if (pp->pln_ship != sp->shp_uid)
250 if (pp->pln_own == 0)
253 if (pp->pln_effic > PLANE_MINEFF)
254 pp->pln_effic = PLANE_MINEFF;
257 /* Keep track of when this was taken over */
258 time(&pp->pln_access);
260 trdswitchown(EF_PLANE, (int *)pp, newown);
262 makelost(EF_PLANE, pp->pln_own, pp->pln_uid, pp->pln_x, pp->pln_y);
263 pp->pln_own = newown;
264 makenotlost(EF_PLANE, pp->pln_own, pp->pln_uid, pp->pln_x,
266 putplane(pp->pln_uid, pp);
268 /* Take over land units */
269 snxtitem_all(&ni, EF_LAND);
270 while (nxtitem(&ni, (caddr_t)lp)) {
271 if (lp->lnd_ship != sp->shp_uid)
273 if (lp->lnd_own == 0)
275 takeover_land(lp, newown, hostile);
277 putship(sp->shp_uid, sp);
281 takeover_land(register struct lndstr *landp, natid newown, int hostile)
283 register struct plnstr *pp;
284 register struct lndstr *lp;
289 if (landp->lnd_effic < LAND_MINEFF) {
290 putland(landp->lnd_uid, landp);
293 landp->lnd_army = ' ';
294 landp->lnd_mobil = 0;
295 landp->lnd_harden = 0;
296 /* Keep track of when this was taken over */
297 time(&landp->lnd_access);
299 trdswitchown(EF_LAND, (int *)landp, newown);
300 landp->lnd_mission = 0;
301 makelost(EF_LAND, landp->lnd_own, landp->lnd_uid, landp->lnd_x,
303 landp->lnd_own = newown;
304 makenotlost(EF_LAND, landp->lnd_own, landp->lnd_uid, landp->lnd_x,
308 /* Take over planes */
309 snxtitem_all(&ni, EF_PLANE);
310 while (nxtitem(&ni, (caddr_t)pp)) {
311 if (pp->pln_land != landp->lnd_uid)
313 if (pp->pln_own == 0)
316 if (pp->pln_effic > PLANE_MINEFF)
317 pp->pln_effic = PLANE_MINEFF;
320 /* Keep track of when this was taken over */
321 time(&pp->pln_access);
323 trdswitchown(EF_PLANE, (int *)pp, newown);
325 makelost(EF_PLANE, pp->pln_own, pp->pln_uid, pp->pln_x, pp->pln_y);
326 pp->pln_own = newown;
327 makenotlost(EF_PLANE, pp->pln_own, pp->pln_uid, pp->pln_x,
329 putplane(pp->pln_uid, pp);
331 /* Take over land units */
332 snxtitem_all(&ni, EF_LAND);
333 while (nxtitem(&ni, (caddr_t)lp)) {
334 if (lp->lnd_land != landp->lnd_uid)
336 if (lp->lnd_own == 0)
338 takeover_land(lp, newown, hostile);
340 putland(landp->lnd_uid, landp);