2 * Empire - A multi-player, client/server Internet based war game.
3 * Copyright (C) 1986-2011, Dave Pare, Jeff Bailey, Thomas Ruschak,
4 * Ken Stevens, Steve McClure, Markus Armbruster
6 * Empire 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 3 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, see <http://www.gnu.org/licenses/>.
21 * See files README, COPYING and CREDITS in the root of the source
22 * tree for related information and legal notices. It is expected
23 * that future projects/authors will amend these files as needed.
27 * nat.c: Misc. accesses on the nation file
29 * Known contributors to this file:
31 * Ron Koenderink, 2005
32 * Markus Armbruster, 2006-2009
43 /* must follow nation relation defines in nat.h */
44 "At War", "Hostile", "Neutral", "Friendly", "Allied"
52 if (!(np = getnatp(n)))
58 relatename(struct natstr *np, natid other)
60 return relates[getrel(np, other)];
64 rejectname(struct natstr *np, natid other)
66 static char *rejects[] = {
67 /* must follow reject flags defined in nat.h */
86 return rejects[getrejects(other, np)];
90 natstate(struct natstr *np)
92 static char *stnam[] = {
93 /* must match nat_status */
94 "FREE", "VISITOR", "VISITOR", "SANCTUARY", "ACTIVE", "DEITY"
96 return stnam[np->nat_stat];
99 /* This returns the relations that np has with them */
101 getrel(struct natstr *np, natid them)
103 return np->nat_relate[them];
107 * Return relations US has with THEM.
108 * Countries are considered allied to themselves.
111 relations_with(natid us, natid them)
113 return us == them ? ALLIED : getrel(getnatp(us), them);
117 getrejects(natid them, struct natstr *np)
119 return np->nat_rejects[them];
123 agecontact(struct natstr *np)
127 for (them = 1; them < MAXNOC; ++them) {
128 if (them != np->nat_cnum && np->nat_contact[them]) {
129 --np->nat_contact[them];
135 getcontact(struct natstr *np, natid them)
137 return np->nat_contact[them];
141 putrel(struct natstr *np, natid them, int relate)
143 np->nat_relate[them] = relate;
147 putreject(struct natstr *np, natid them, int how, int what)
150 np->nat_rejects[them] |= what;
152 np->nat_rejects[them] &= ~what;
156 putcontact(struct natstr *np, natid them, int contact)
158 if (CANT_HAPPEN(contact < 0))
160 if (CANT_HAPPEN(contact > 255))
163 if (np->nat_contact[them] < contact)
164 np->nat_contact[them] = contact;
168 influx(struct natstr *np)
172 getsect(np->nat_xcap, np->nat_ycap, §);
173 if (sect.sct_own != np->nat_cnum ||
174 (sect.sct_type != SCT_CAPIT && sect.sct_type != SCT_MOUNT &&
175 sect.sct_type != SCT_SANCT) ||
176 (np->nat_flags & NF_SACKED))