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];
68 extern double hap_fact(struct natstr *, struct natstr *);
69 extern int etu_per_update;
70 extern int sect_mob_neg_factor;
72 /* Wipe all the distribution info */
73 bzero((s_char *)vec, sizeof(vec));
74 putvec(VT_DIST, vec, (s_char *)sp, EF_SECTOR);
75 putvec(VT_DEL, vec, (s_char *)sp, EF_SECTOR);
80 sp->sct_dist_x = sp->sct_x;
81 sp->sct_dist_y = sp->sct_y;
84 /* Take over planes */
85 snxtitem_dist(&ni, EF_PLANE, sp->sct_x, sp->sct_y, 0);
86 while (nxtitem(&ni, (caddr_t)pp)) {
87 if (pp->pln_own != sp->sct_own)
89 takeover_plane(pp, newown);
92 /* Take over land units */
94 snxtitem_dist(&ni, EF_LAND, sp->sct_x, sp->sct_y, 0);
95 while (nxtitem(&ni, (caddr_t)lp)) {
96 if ((lp->lnd_own == newown) || (lp->lnd_own == 0))
98 if (lp->lnd_own != sp->sct_own)
100 if (lp->lnd_ship >= 0 || lp->lnd_land >= 0)
102 /* Spies get a chance to hide */
103 if (lchr[(int)lp->lnd_type].l_flags & L_SPY) {
104 odds = (double)(100 - lp->lnd_effic) + 0.10;
108 n = lp->lnd_effic - (30 + (random() % 100));
112 if (lp->lnd_effic < LAND_MINEFF) {
114 mpr(newown, "%s blown up by the crew!\n", prland(lp));
116 "%s blown up by the crew when %s took %s!\n",
118 cname(newown), xyas(lp->lnd_x, lp->lnd_y, lp->lnd_own));
120 mpr(newown, "We have captured %s!\n", prland(lp));
122 "%s captured when %s took %s!\n",
124 cname(newown), xyas(lp->lnd_x, lp->lnd_y, lp->lnd_own));
126 takeover_land(lp, newown, 1);
130 civ = getvar(V_CIVIL, (s_char *)sp, EF_SECTOR);
131 oldche = get_che_value(getvar(V_CHE, (s_char *)sp, EF_SECTOR));
133 * create guerrillas from civilians
134 * how spunky are these guys?
135 * n: random number from -25:75 + (50 - loyalty)
137 n = (50 - sp->sct_loyal) + ((random() % 100) - 25);
140 if (n > 0 && sp->sct_own == sp->sct_oldown) {
141 che_count = (civ * n / 3000) + 5;
142 if (che_count * 2 > civ)
144 che_count /= hap_fact(getnatp(newown), getnatp(sp->sct_own));
145 if (che_count + oldche > CHE_MAX)
146 che_count = CHE_MAX - oldche;
154 set_che_value(che, che_count);
155 if (newown != sp->sct_oldown)
156 set_che_cnum(che, newown);
157 (void)putvar(V_CHE, che, (s_char *)sp, EF_SECTOR);
158 (void)putvar(V_CIVIL, civ, (s_char *)sp, EF_SECTOR);
159 if (sp->sct_oldown == newown || civ == 0) {
161 * taking over one of your old sectors
164 sp->sct_oldown = newown;
167 * taking over someone else's sector
171 makelost(EF_SECTOR, sp->sct_own, 0, sp->sct_x, sp->sct_y);
172 makenotlost(EF_SECTOR, newown, 0, sp->sct_x, sp->sct_y);
173 sp->sct_own = newown;
174 if (opt_MOB_ACCESS) {
175 time(&sp->sct_access);
176 sp->sct_mobil = -(etu_per_update / sect_mob_neg_factor);
183 takeover_plane(register struct plnstr *pp, natid newown)
187 if ((pp->pln_own == newown) || (pp->pln_own == 0))
189 if (pp->pln_flags & PLN_LAUNCHED)
191 if (pp->pln_ship >= 0 || pp->pln_land >= 0)
194 * XXX If this was done right, planes could escape,
195 * flying to a nearby friendly airport.
197 n = pp->pln_effic - (30 + (random() % 100));
201 if (pp->pln_effic < PLANE_MINEFF || pp->pln_harden > (s_char)0) {
203 mpr(newown, "%s blown up by the crew!\n", prplane(pp));
205 "%s blown up by the crew to avoid capture by %s at %s!\n",
207 cname(newown), xyas(pp->pln_x, pp->pln_y, pp->pln_own));
209 mpr(newown, "We have captured %s!\n", prplane(pp));
211 "%s captured by %s at %s!\n",
213 cname(newown), xyas(pp->pln_x, pp->pln_y, pp->pln_own));
216 trdswitchown(EF_PLANE, (int *)pp, newown);
217 if (pp->pln_mobil > (s_char)0)
219 makelost(EF_PLANE, pp->pln_own, pp->pln_uid, pp->pln_x, pp->pln_y);
220 pp->pln_own = newown;
221 makenotlost(EF_PLANE, pp->pln_own, pp->pln_uid, pp->pln_x, pp->pln_y);
223 putplane(pp->pln_uid, pp);
227 takeover_ship(register struct shpstr *sp, natid newown, int hostile)
229 register struct plnstr *pp;
230 register struct lndstr *lp;
236 trdswitchown(EF_SHIP, (int *)sp, newown);
237 makelost(EF_SHIP, sp->shp_own, sp->shp_uid, sp->shp_x, sp->shp_y);
238 sp->shp_own = newown;
239 makenotlost(EF_SHIP, sp->shp_own, sp->shp_uid, sp->shp_x, sp->shp_y);
243 /* Keep track of when this was taken over */
244 time(&sp->shp_access);
245 bzero(sp->shp_rpath, RET_LEN);
248 /* Take over planes */
249 snxtitem_all(&ni, EF_PLANE);
250 while (nxtitem(&ni, (caddr_t)pp)) {
251 if (pp->pln_ship != sp->shp_uid)
253 if (pp->pln_own == 0)
256 if (pp->pln_effic > PLANE_MINEFF)
257 pp->pln_effic = PLANE_MINEFF;
260 /* Keep track of when this was taken over */
261 time(&pp->pln_access);
263 trdswitchown(EF_PLANE, (int *)pp, newown);
265 makelost(EF_PLANE, pp->pln_own, pp->pln_uid, pp->pln_x, pp->pln_y);
266 pp->pln_own = newown;
267 makenotlost(EF_PLANE, pp->pln_own, pp->pln_uid, pp->pln_x,
269 putplane(pp->pln_uid, pp);
271 /* Take over land units */
272 snxtitem_all(&ni, EF_LAND);
273 while (nxtitem(&ni, (caddr_t)lp)) {
274 if (lp->lnd_ship != sp->shp_uid)
276 if (lp->lnd_own == 0)
278 takeover_land(lp, newown, hostile);
280 putship(sp->shp_uid, sp);
284 takeover_land(register struct lndstr *landp, natid newown, int hostile)
286 register struct plnstr *pp;
287 register struct lndstr *lp;
292 if (landp->lnd_effic < LAND_MINEFF) {
293 putland(landp->lnd_uid, landp);
296 landp->lnd_army = ' ';
297 landp->lnd_mobil = 0;
298 landp->lnd_harden = 0;
299 /* Keep track of when this was taken over */
300 time(&landp->lnd_access);
302 trdswitchown(EF_LAND, (int *)landp, newown);
303 landp->lnd_mission = 0;
304 makelost(EF_LAND, landp->lnd_own, landp->lnd_uid, landp->lnd_x,
306 landp->lnd_own = newown;
307 makenotlost(EF_LAND, landp->lnd_own, landp->lnd_uid, landp->lnd_x,
311 /* Take over planes */
312 snxtitem_all(&ni, EF_PLANE);
313 while (nxtitem(&ni, (caddr_t)pp)) {
314 if (pp->pln_land != landp->lnd_uid)
316 if (pp->pln_own == 0)
319 if (pp->pln_effic > PLANE_MINEFF)
320 pp->pln_effic = PLANE_MINEFF;
323 /* Keep track of when this was taken over */
324 time(&pp->pln_access);
326 trdswitchown(EF_PLANE, (int *)pp, newown);
328 makelost(EF_PLANE, pp->pln_own, pp->pln_uid, pp->pln_x, pp->pln_y);
329 pp->pln_own = newown;
330 makenotlost(EF_PLANE, pp->pln_own, pp->pln_uid, pp->pln_x,
332 putplane(pp->pln_uid, pp);
334 /* Take over land units */
335 snxtitem_all(&ni, EF_LAND);
336 while (nxtitem(&ni, (caddr_t)lp)) {
337 if (lp->lnd_land != landp->lnd_uid)
339 if (lp->lnd_own == 0)
341 takeover_land(lp, newown, hostile);
343 putland(landp->lnd_uid, landp);