/*
* Empire - A multi-player, client/server Internet based war game.
- * Copyright (C) 1986-2000, Dave Pare, Jeff Bailey, Thomas Ruschak,
- * Ken Stevens, Steve McClure
+ * Copyright (C) 1986-2016, Dave Pare, Jeff Bailey, Thomas Ruschak,
+ * Ken Stevens, Steve McClure, Markus Armbruster
*
- * This program is free software; you can redistribute it and/or modify
+ * Empire is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
+ * the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* ---
*
- * See the "LEGAL", "LICENSE", "CREDITS" and "README" files for all the
- * related information and legal notices. It is expected that any future
- * projects/authors will amend these files as needed.
+ * See files README, COPYING and CREDITS in the root of the source
+ * tree for related information and legal notices. It is expected
+ * that future projects/authors will amend these files as needed.
*
* ---
*
* nxtitemp.c: Get next item from list
- *
+ *
* Known contributors to this file:
* Dave Pare, 1989
*/
-#include "misc.h"
-#include "var.h"
-#include "xy.h"
-#include "plane.h"
-#include "ship.h"
-#include "nuke.h"
+#include <config.h>
+
+#include "empobj.h"
#include "land.h"
#include "nsc.h"
-#include "nat.h"
-#include "file.h"
-#include "genitem.h"
-#include "player.h"
+#include "ship.h"
+#include "unit.h"
#include "update.h"
-#include "gen.h"
-#include "common.h"
-s_char *
-nxtitemp(struct nstr_item *np, int owner)
+void *
+nxtitemp(struct nstr_item *np)
{
- struct genitem *gp;
- int selected;
+ struct empobj *gp;
+ int selected;
- if (np->sel == NS_UNDEF)
- return 0;
- do {
- if (np->sel == NS_LIST) {
- np->index++;
- if (np->index >= np->size)
- return 0;
- np->cur = np->list[np->index];
- } else {
- np->cur++;
- }
- gp = (struct genitem *)ef_ptr(np->type,np->cur);
- if (gp == (struct genitem *)0)
- return 0;
+ if (np->sel == NS_UNDEF)
+ return NULL;
+ do {
+ if (np->sel == NS_LIST) {
+ np->index++;
+ if (np->index >= np->size)
+ return NULL;
+ np->cur = np->list[np->index];
+ } else if (np->sel == NS_CARGO) {
+ if (np->next < 0)
+ return NULL;
+ np->cur = np->next;
+ np->next = unit_cargo_next(np->type, np->next);
+ } else {
+ np->cur++;
+ }
+ gp = ef_ptr(np->type, np->cur);
+ if (!gp)
+ return NULL;
- selected = 1;
- switch (np->sel) {
- /*
- * This one won't work unless you're running in emp_player
- *
- */
- case NS_LIST:
- if ((np->flags & EFF_OWNER) && !owner)
- selected = 0;
- break;
- case NS_ALL:
- /* XXX maybe combine NS_LIST and NS_ALL later */
- break;
- case NS_DIST:
- if (!xyinrange(gp->x, gp->y, &np->range)) {
- selected = 0;
- break;
- }
- np->curdist = mapdist((int)gp->x, (int)gp->y,
- (int)np->cx, (int)np->cy);
- if (np->curdist > np->dist)
- selected = 0;
- break;
- case NS_AREA:
- if (!xyinrange(gp->x, gp->y, &np->range))
- selected = 0;
- if (gp->x == np->range.hx || gp->y == np->range.hy)
- selected = 0;
- break;
- case NS_XY:
- if (xnorm(gp->x) != np->cx || ynorm(gp->y) != np->cy)
- selected = 0;
- break;
- case NS_GROUP:
- if (np->group != gp->group)
- selected = 0;
- break;
- default:
- logerror("nxtitemp: bad selector %d\n", np->sel);
- return 0;
- }
- if (selected && np->ncond) {
- /* nstr_exec is expensive, so we do it last */
- if (!nstr_exec(np->cond, np->ncond, (s_char *)gp, np->type))
- selected = 0;
- }
- } while (!selected);
- return (s_char *)gp;
+ selected = 1;
+ switch (np->sel) {
+ case NS_LIST:
+ case NS_CARGO:
+ case NS_ALL:
+ break;
+ case NS_DIST:
+ if (CANT_HAPPEN(!(ef_flags(np->type) & EFF_XY)))
+ return NULL;
+ if (!xyinrange(gp->x, gp->y, &np->range)) {
+ selected = 0;
+ break;
+ }
+ np->curdist = mapdist(gp->x, gp->y, np->cx, np->cy);
+ if (np->curdist > np->dist)
+ selected = 0;
+ break;
+ case NS_AREA:
+ if (CANT_HAPPEN(!(ef_flags(np->type) & EFF_XY)))
+ return NULL;
+ if (!xyinrange(gp->x, gp->y, &np->range))
+ selected = 0;
+ break;
+ case NS_XY:
+ if (CANT_HAPPEN(!(ef_flags(np->type) & EFF_XY)))
+ return NULL;
+ if (xnorm(gp->x) != np->cx || ynorm(gp->y) != np->cy)
+ selected = 0;
+ break;
+ case NS_GROUP:
+ if (CANT_HAPPEN(!(ef_flags(np->type) & EFF_GROUP)))
+ return NULL;
+ if (np->group != gp->group)
+ selected = 0;
+ break;
+ default:
+ CANT_REACH();
+ return NULL;
+ }
+ if (selected && np->ncond) {
+ /* nstr_exec is expensive, so we do it last */
+ if (!nstr_exec(np->cond, np->ncond, gp))
+ selected = 0;
+ }
+ } while (!selected);
+ return gp;
}
projects / empserver / blobdiff