2 * Empire - A multi-player, client/server Internet based war game.
3 * Copyright (C) 1986-2020, 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 * nxtitemp.c: Get next item from list
29 * Known contributors to this file:
38 #include "prototypes.h"
43 nxtitemp(struct nstr_item *np)
48 if (np->sel == NS_UNDEF)
51 if (np->sel == NS_LIST) {
53 if (np->index >= np->size)
55 np->cur = np->list[np->index];
56 } else if (np->sel == NS_CARGO) {
60 np->next = unit_cargo_next(np->type, np->next);
64 gp = ef_ptr(np->type, np->cur);
75 if (CANT_HAPPEN(!(ef_flags(np->type) & EFF_XY)))
77 if (!xyinrange(gp->x, gp->y, &np->range)) {
81 np->curdist = mapdist(gp->x, gp->y, np->cx, np->cy);
82 if (np->curdist > np->dist)
86 if (CANT_HAPPEN(!(ef_flags(np->type) & EFF_XY)))
88 if (!xyinrange(gp->x, gp->y, &np->range))
92 if (CANT_HAPPEN(!(ef_flags(np->type) & EFF_XY)))
94 if (xnorm(gp->x) != np->cx || ynorm(gp->y) != np->cy)
98 if (CANT_HAPPEN(!(ef_flags(np->type) & EFF_GROUP)))
100 if (np->group != gp->group)
107 if (selected && np->ncond) {
108 /* nstr_exec is expensive, so we do it last */
109 if (!nstr_exec(np->cond, np->ncond, gp))