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 * atta.c: Attack another sector
30 * Known contributors to this file:
56 struct combat off[6]; /* attacking sectors */
57 struct combat def[1]; /* defending sector */
60 int fort_sup, ship_sup, land_sup, plane_sup;
61 struct emp_qelem olist; /* attacking units */
62 struct emp_qelem dlist; /* defending units */
63 int ototal; /* total attacking strength */
64 int a_engineer = 0; /* attacker engineers are present */
65 int a_spy = 0; /* the best attacker scout */
66 double osupport = 1.0; /* attack support */
67 double dsupport = 1.0; /* defense support */
73 att_combat_init(def, EF_SECTOR);
75 * Collect input from the attacker
78 /* What are we attacking? */
80 if (!(p = getstarg(player->argp[1], "Sector : ", buf)))
82 if (!sarg_xy(p, &def->x, &def->y))
84 if (att_abort(A_ATTACK, 0, def))
87 /* Show what we're attacking, and check treaties */
92 /* Ask about offensive support */
94 att_ask_support(2, &fort_sup, &ship_sup, &land_sup, &plane_sup);
95 if (att_abort(A_ATTACK, 0, def)) {
96 att_empty_attack(A_ATTACK, 0, def);
100 /* initialize the off[] array */
102 for (n = 0, last = -1; n < 6; ++n) { /* Directions */
103 newx = def->x + diroff[n+1][0];
104 newy = def->y + diroff[n+1][1];
105 getsect(newx,newy,§); /* incase cross world boundary */
106 rel = getrel(getnatp(sect.sct_own), player->cnum);
107 if (!player->owner && rel != ALLIED)
109 att_combat_init(&off[++last], EF_SECTOR);
110 off[last].x = sect.sct_x;
111 off[last].y = sect.sct_y;
115 /* Ask the player what he wants to attack with */
117 att_ask_offense(A_ATTACK, off, def, &olist, &a_spy, &a_engineer);
118 if (att_abort(A_ATTACK, off, def)) {
119 pr("Attack aborted\n");
120 att_empty_attack(A_ATTACK, 0, def);
121 return att_free_lists(&olist, 0);
125 * Estimate the defense strength and give the player a chance to abort
128 ototal = att_estimate_defense(A_ATTACK, off, &olist, def, a_spy);
129 if (att_abort(A_ATTACK, off, def)) {
130 pr("Attack aborted\n");
131 att_empty_attack(A_ATTACK, 0, def);
132 return att_free_lists(&olist, 0);
136 * We have now got all the answers from the attacker. From this point
137 * forward, we can assume that this battle is the _only_ thing
138 * happening in the game.
141 /* Get the real defense */
143 att_get_defense(&olist, def, &dlist, a_spy, ototal);
145 /* Get attacker and defender support */
147 att_get_support(A_ATTACK, fort_sup, ship_sup, land_sup, plane_sup,
148 &olist, off, &dlist, def, &osupport, &dsupport,
150 if (att_abort(A_ATTACK, off, def)) {
151 pr("Attack aborted\n");
152 att_empty_attack(A_ATTACK, 0, def);
153 return att_free_lists(&olist, &dlist);
157 * Death, carnage, and destruction.
160 att_fight(A_ATTACK,off,&olist,osupport,def,&dlist,dsupport);