2 * Empire - A multi-player, client/server Internet based war game.
3 * Copyright (C) 1986-2000, 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 * lten.c: Transfer commodity from a ship to a land unit the ship is
31 * Known contributors to this file:
53 static void expose_land(struct shpstr *s1, struct lndstr *l1);
58 struct nstr_item targets;
59 struct nstr_item tenders;
63 struct mchrstr *vbase;
64 struct lchrstr *lbase;
75 if (!(ip = whatitem(player->argp[1], "Transfer what commodity? ")))
78 if (!snxtitem(&tenders, EF_SHIP,
79 getstarg(player->argp[2], "Tender(s)? ", buf)))
81 while (nxtitem(&tenders, (s_char *)&tender)) {
85 getstarg(player->argp[3], "Amount to transfer? ", buf)) == 0)
87 if (!check_ship_ok(&tender))
89 if ((amt = atoi(p)) == 0)
91 ontender = tender.shp_item[ip->i_vtype];
92 if (ontender == 0 && amt > 0) {
93 pr("No %s on %s\n", ip->i_name, prship(&tender));
96 vbase = &mchr[(int)tender.shp_type];
97 maxtender = vbase->m_item[ip->i_vtype];
99 pr("A %s cannot hold any %s\n",
100 mchr[(int)tender.shp_type].m_name, ip->i_name);
103 if (!snxtitem(&targets, EF_LAND,
104 getstarg(player->argp[4], "Units to be tended? ",
107 if (!check_ship_ok(&tender))
110 while (tend_nxtitem(&targets, (s_char *)&target)) {
114 if (target.lnd_ship != tender.shp_uid)
116 ontarget = target.lnd_item[ip->i_vtype];
117 if (ontarget == 0 && amt < 0) {
119 ip->i_name, prship((struct shpstr *)&target));
122 lbase = &lchr[(int)target.lnd_type];
123 maxtarget = lbase->l_item[ip->i_vtype];
128 /* take from target and give to tender */
129 transfer = min(ontarget, -amt);
130 transfer = min(maxtender - ontender, transfer);
133 target.lnd_item[ip->i_vtype] = ontarget - transfer;
134 ontender += transfer;
137 /* give to target from tender */
138 transfer = min(ontender, amt);
139 transfer = min(transfer, maxtarget - ontarget);
142 target.lnd_item[ip->i_vtype] = ontarget + transfer;
143 ontender -= transfer;
146 expose_land(&tender, &target);
147 putland(target.lnd_uid, &target);
148 if (amt > 0 && ontender == 0) {
149 pr("%s out of %s\n", prship(&tender), ip->i_name);
153 pr("%d total %s transferred %s %s\n",
154 total, ip->i_name, (amt > 0) ? "off of" : "to",
156 tender.shp_item[ip->i_vtype] = ontender;
157 tender.shp_mission = 0;
158 putship(tender.shp_uid, &tender);
164 expose_land(struct shpstr *s1, struct lndstr *l1)
166 if (s1->shp_pstage == PLG_INFECT && l1->lnd_pstage == PLG_HEALTHY)
167 l1->lnd_pstage = PLG_EXPOSED;
168 if (l1->lnd_pstage == PLG_INFECT && s1->shp_pstage == PLG_HEALTHY)
169 s1->shp_pstage = PLG_EXPOSED;