2 * Empire - A multi-player, client/server Internet based war game.
3 * Copyright (C) 1986-2010, 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 files README, COPYING and CREDITS in the root of the source
23 * tree for related information and legal notices. It is expected
24 * that future projects/authors will amend these files as needed.
28 * atta.c: Attack another sector
30 * Known contributors to this file:
48 struct combat off[6]; /* attacking sectors */
49 struct combat def[1]; /* defending sector */
52 int fort_sup, ship_sup, land_sup, plane_sup;
53 struct emp_qelem olist; /* attacking units */
54 struct emp_qelem dlist; /* defending units */
55 int ototal; /* total attacking strength */
56 int a_engineer = 0; /* attacker engineers are present */
57 int a_spy = 0; /* the best attacker scout */
58 double osupport = 1.0; /* attack support */
59 double dsupport = 1.0; /* defense support */
64 att_combat_init(def, EF_SECTOR);
66 * Collect input from the attacker
69 /* What are we attacking? */
71 if (!(p = getstarg(player->argp[1], "Sector : ", buf)))
73 if (!sarg_xy(p, &def->x, &def->y))
75 if (att_abort(A_ATTACK, NULL, def))
78 /* Show what we're attacking, and check treaties */
83 /* Ask about offensive support */
85 att_ask_support(2, &fort_sup, &ship_sup, &land_sup, &plane_sup);
86 if (att_abort(A_ATTACK, NULL, def)) {
87 att_empty_attack(A_ATTACK, 0, def);
91 /* initialize the off[] array */
93 for (n = 0, last = -1; n < 6; ++n) { /* Directions */
94 newx = def->x + diroff[n + 1][0];
95 newy = def->y + diroff[n + 1][1];
96 getsect(newx, newy, §); /* incase cross world boundary */
98 && relations_with(sect.sct_own, player->cnum) != ALLIED)
100 att_combat_init(&off[++last], EF_SECTOR);
101 off[last].x = sect.sct_x;
102 off[last].y = sect.sct_y;
106 /* Ask the player what he wants to attack with */
108 att_ask_offense(A_ATTACK, off, def, &olist, &a_spy, &a_engineer);
109 if (att_abort(A_ATTACK, off, def)) {
110 pr("Attack aborted\n");
111 att_empty_attack(A_ATTACK, 0, def);
112 return att_free_lists(&olist, NULL);
115 ototal = att_get_offense(A_ATTACK, off, &olist, def);
116 if (att_abort(A_ATTACK, off, def)) {
117 pr("Attack aborted\n");
118 att_empty_attack(A_ATTACK, 0, def);
119 return att_free_lists(&olist, NULL);
123 * We have now got all the answers from the attacker. From this point
124 * forward, we can assume that this battle is the _only_ thing
125 * happening in the game.
128 /* Get the real defense */
130 att_get_defense(&olist, def, &dlist, a_spy, ototal);
132 /* Get attacker and defender support */
134 att_get_support(A_ATTACK, fort_sup, ship_sup, land_sup, plane_sup,
135 &olist, off, &dlist, def, &osupport, &dsupport,
137 if (att_abort(A_ATTACK, off, def)) {
138 pr("Attack aborted\n");
139 att_empty_attack(A_ATTACK, 0, def);
140 return att_free_lists(&olist, &dlist);
144 * Death, carnage, and destruction.
147 att_fight(A_ATTACK, off, &olist, osupport, def, &dlist, dsupport);