2 * Empire - A multi-player, client/server Internet based war game.
3 * Copyright (C) 1986-2006, 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 files README, COPYING and CREDITS in the root of the source
23 * tree for related information and legal notices. It is expected
24 * that future projects/authors will amend these files as needed.
28 * lten.c: Transfer commodity from a ship to a land unit the ship is
31 * Known contributors to this file:
51 static void expose_land(struct shpstr *s1, struct lndstr *l1);
56 struct nstr_item targets;
57 struct nstr_item tenders;
61 struct mchrstr *vbase;
62 struct lchrstr *lbase;
73 if (!(ip = whatitem(player->argp[1], "Transfer what commodity? ")))
76 if (!snxtitem(&tenders, EF_SHIP,
77 getstarg(player->argp[2], "Tender(s)? ", buf)))
79 while (nxtitem(&tenders, &tender)) {
83 getstarg(player->argp[3], "Amount to transfer? ", buf)) == 0)
85 if (!check_ship_ok(&tender))
87 if ((amt = atoi(p)) == 0)
89 ontender = tender.shp_item[ip->i_vtype];
90 if (ontender == 0 && amt > 0) {
91 pr("No %s on %s\n", ip->i_name, prship(&tender));
94 vbase = &mchr[(int)tender.shp_type];
95 maxtender = vbase->m_item[ip->i_vtype];
97 pr("A %s cannot hold any %s\n",
98 mchr[(int)tender.shp_type].m_name, ip->i_name);
101 if (!snxtitem(&targets, EF_LAND,
102 getstarg(player->argp[4], "Units to be tended? ",
105 if (!check_ship_ok(&tender))
108 while (nxtitem(&targets, &target)) {
112 if (target.lnd_ship != tender.shp_uid)
114 ontarget = target.lnd_item[ip->i_vtype];
115 if (ontarget == 0 && amt < 0) {
117 ip->i_name, prland(&target));
120 lbase = &lchr[(int)target.lnd_type];
121 maxtarget = lbase->l_item[ip->i_vtype];
126 /* take from target and give to tender */
127 transfer = MIN(ontarget, -amt);
128 transfer = MIN(maxtender - ontender, transfer);
131 target.lnd_item[ip->i_vtype] = ontarget - transfer;
132 ontender += transfer;
135 /* give to target from tender */
136 transfer = MIN(ontender, amt);
137 transfer = MIN(transfer, maxtarget - ontarget);
140 target.lnd_item[ip->i_vtype] = ontarget + transfer;
141 ontender -= transfer;
144 expose_land(&tender, &target);
145 putland(target.lnd_uid, &target);
146 if (amt > 0 && ontender == 0) {
147 pr("%s out of %s\n", prship(&tender), ip->i_name);
151 pr("%d total %s transferred %s %s\n",
152 total, ip->i_name, (amt > 0) ? "off of" : "to",
154 tender.shp_item[ip->i_vtype] = ontender;
155 tender.shp_mission = 0;
156 putship(tender.shp_uid, &tender);
162 expose_land(struct shpstr *s1, struct lndstr *l1)
164 if (s1->shp_pstage == PLG_INFECT && l1->lnd_pstage == PLG_HEALTHY)
165 l1->lnd_pstage = PLG_EXPOSED;
166 if (l1->lnd_pstage == PLG_INFECT && s1->shp_pstage == PLG_HEALTHY)
167 s1->shp_pstage = PLG_EXPOSED;