2 * Empire - A multi-player, client/server Internet based war game.
3 * Copyright (C) 1986-2005, 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 * boar.c: Board an enemy ship
30 * Known contributors to this file:
52 struct combat off[1]; /* boarding ship or sector */
53 struct combat def[1]; /* defending ship */
54 struct emp_qelem olist; /* boarding units */
55 struct emp_qelem dlist; /* defending units */
56 int ototal; /* total boarding strength */
57 int a_engineer = 0; /* boarder engineers are present */
58 int a_spy = 0; /* the best boarder scout */
59 struct shpstr ship; /* for retreating */
67 att_combat_init(def, EF_SHIP);
69 * Collect input from the boarder
72 /* What are we boarding? */
74 if (!(p = getstarg(player->argp[1], "Victim ship #? ", buf)) ||
75 (def->shp_uid = atoi(p)) < 0)
79 * Ask the boarder what he wants to board with
82 if (!(p = getstarg(player->argp[2], "Boarding party from? ", buf)))
85 att_combat_init(off, EF_SECTOR);
86 if (!sarg_xy(p, &off->x, &off->y))
88 getsect(off->x, off->y, §);
89 if (sect.sct_own != player->cnum) {
90 pr("You don't own %s!\n", xyas(off->x, off->y, player->cnum));
93 if (sect.sct_mobil <= 0) {
94 /* Look for land units with mobility */
95 snxtitem_xy(&ni, EF_LAND, off->x, off->y);
97 while (nxtitem(&ni, &land)) {
98 if (land.lnd_own != player->cnum)
100 if (land.lnd_ship >= 0)
102 if (land.lnd_mobil <= 0)
104 /* Only land units with assault can board */
105 if (!(lchr[(int)land.lnd_type].l_flags & L_ASSAULT))
110 pr("You don't have any mobility (sector or land units) in %s!\n", xyas(off->x, off->y, player->cnum));
115 att_combat_init(off, EF_SHIP);
116 if ((off->shp_uid = atoi(p)) < 0)
119 if (att_abort(A_BOARD, off, def)) {
120 pr("Board aborted\n");
124 /* Fire at the attacking ship */
126 att_approach(off, def);
127 if (att_abort(A_BOARD, off, def)) {
128 pr("Board aborted\n");
129 att_empty_attack(A_BOARD, 0, def);
133 /* Show what we're boarding, and check treaties */
138 /* Ask the player what he wants to board with */
140 att_ask_offense(A_BOARD, off, def, &olist, &a_spy, &a_engineer);
141 if (att_abort(A_BOARD, off, def)) {
142 pr("Board aborted\n");
143 att_empty_attack(A_BOARD, 0, def);
144 return att_free_lists(&olist, 0);
148 * Estimate the defense strength and give the player a chance to abort
151 ototal = att_estimate_defense(A_BOARD, off, &olist, def, a_spy);
152 if (att_abort(A_BOARD, off, def)) {
153 pr("Board aborted\n");
154 att_empty_attack(A_BOARD, 0, def);
155 return att_free_lists(&olist, 0);
159 * We have now got all the answers from the boarder. From this point
160 * forward, we can assume that this battle is the _only_ thing
161 * happening in the game.
164 /* Get the real defense */
166 att_get_defense(&olist, def, &dlist, a_spy, ototal);
169 * Death, carnage, and destruction.
172 if (!(att_fight(A_BOARD, off, &olist, 1.0, def, &dlist, 1.0))) {
173 getship(def->shp_uid, &ship);
174 if (ship.shp_rflags & RET_BOARDED) {
175 retreat_ship(&ship, 'u');
176 putship(def->shp_uid, &ship);