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 * nat.c: Misc. accesses on the nation file
30 * Known contributors to this file:
40 /* must follow nation relation defines in nat.h */
41 "At War", "Sitzkrieg", "Mobilizing", "Hostile", "Neutral", "Friendly",
50 if ((np = getnatp(n)) == 0)
56 relatename(struct natstr *np, natid other)
58 return relates[getrel(np, other)];
62 rejectname(struct natstr *np, natid other)
65 /* must follow reject flags defined in nat.h */
84 return rejects[getrejects(other, np)];
88 natstate(struct natstr *np)
90 if ((np->nat_stat & STAT_INUSE) == 0)
92 if (np->nat_stat & STAT_GOD)
94 if ((np->nat_stat & STAT_NORM) == 0)
99 /* This returns the relations that np has with them */
101 getrel(struct natstr *np, natid them)
103 return np->nat_relate[them];
107 getrejects(natid them, struct natstr *np)
114 shift = 12 - ((them - ((them / 4) << 2)) * 4);
115 reject = (np->nat_rejects[ind] >> shift) & 0x0f;
120 agecontact(struct natstr *np)
124 for (them = 1; them < MAXNOC; ++them) {
125 if (them != np->nat_cnum && np->nat_contact[them]) {
126 --np->nat_contact[them];
132 getcontact(struct natstr *np, natid them)
134 return np->nat_contact[them];
138 putrel(struct natstr *np, natid them, int relate)
140 np->nat_relate[them] = relate;
144 putreject(struct natstr *np, natid them, int how, int what)
152 shift = 12 - ((them - ((them / 4) << 2)) * 4);
153 newrej = np->nat_rejects[ind];
155 newrej |= (what << shift);
157 newrej &= ~(what << shift);
158 np->nat_rejects[ind] = newrej;
162 putcontact(struct natstr *np, natid them, unsigned char contact)
164 if (np->nat_contact[them] < contact)
165 np->nat_contact[them] = contact;