2 * Empire - A multi-player, client/server Internet based war game.
3 * Copyright (C) 1986-2009, 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 */
65 att_combat_init(def, EF_SECTOR);
67 * Collect input from the attacker
70 /* What are we attacking? */
72 if (!(p = getstarg(player->argp[1], "Sector : ", buf)))
74 if (!sarg_xy(p, &def->x, &def->y))
76 if (att_abort(A_ATTACK, 0, def))
79 /* Show what we're attacking, and check treaties */
84 /* Ask about offensive support */
86 att_ask_support(2, &fort_sup, &ship_sup, &land_sup, &plane_sup);
87 if (att_abort(A_ATTACK, 0, def)) {
88 att_empty_attack(A_ATTACK, 0, def);
92 /* initialize the off[] array */
94 for (n = 0, last = -1; n < 6; ++n) { /* Directions */
95 newx = def->x + diroff[n + 1][0];
96 newy = def->y + diroff[n + 1][1];
97 getsect(newx, newy, §); /* incase cross world boundary */
98 rel = getrel(getnatp(sect.sct_own), player->cnum);
99 if (!player->owner && rel != ALLIED)
101 att_combat_init(&off[++last], EF_SECTOR);
102 off[last].x = sect.sct_x;
103 off[last].y = sect.sct_y;
107 /* Ask the player what he wants to attack with */
109 att_ask_offense(A_ATTACK, off, def, &olist, &a_spy, &a_engineer);
110 if (att_abort(A_ATTACK, off, def)) {
111 pr("Attack aborted\n");
112 att_empty_attack(A_ATTACK, 0, def);
113 return att_free_lists(&olist, 0);
116 ototal = att_get_offense(A_ATTACK, off, &olist, def);
117 if (att_abort(A_ATTACK, off, def)) {
118 pr("Attack aborted\n");
119 att_empty_attack(A_ATTACK, 0, def);
120 return att_free_lists(&olist, 0);
124 * We have now got all the answers from the attacker. From this point
125 * forward, we can assume that this battle is the _only_ thing
126 * happening in the game.
129 /* Get the real defense */
131 att_get_defense(&olist, def, &dlist, a_spy, ototal);
133 /* Get attacker and defender support */
135 att_get_support(A_ATTACK, fort_sup, ship_sup, land_sup, plane_sup,
136 &olist, off, &dlist, def, &osupport, &dsupport,
138 if (att_abort(A_ATTACK, off, def)) {
139 pr("Attack aborted\n");
140 att_empty_attack(A_ATTACK, 0, def);
141 return att_free_lists(&olist, &dlist);
145 * Death, carnage, and destruction.
148 att_fight(A_ATTACK, off, &olist, osupport, def, &dlist, dsupport);