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 * buy.c: Buy commodities from other nations
29 * Known contributors to this file:
32 * Steve McClure, 1996-2000
38 #include "commodity.h"
49 * format: buy <COMMODITY>
72 pr("The market is disabled.\n");
75 natp = getnatp(player->cnum);
76 ip = whatitem(player->argp[1], "Commodity you want to buy: ");
79 display_mark(ip->i_uid, 0);
81 p = getstarg(player->argp[2], "Which lot are you bidding on: ", buf);
89 if (!getcomm(o, &comm) || comm.com_owner == 0) {
90 pr("Invalid lot number.\n");
93 if (comm.com_type != ip->i_uid) {
94 pr("That lot is not of the type you specified.\n");
97 if (comm.com_owner == player->cnum) {
98 pr("You can't bid on your own lot.\n");
101 if (!(p = getstarg(player->argp[3], "How much per unit: ", buf)))
106 if (natp->nat_money < bid * comm.com_amount * buytax) {
107 pr("This purchase would cost %.2f, %.2f more than you have.\n",
108 bid * comm.com_amount * buytax,
109 bid * comm.com_amount * buytax - natp->nat_money);
112 /* check to see if all of the bids that this player has out plus this new bid
113 would make him go broke. Ken, I ought to skin you alive for making me code
116 for (n = 0; gettrade(n, &tmpt); n++) {
117 if (tmpt.trd_maxbidder == player->cnum &&
118 tmpt.trd_unitid >= 0 && tmpt.trd_owner != player->cnum) {
119 tally += tmpt.trd_price * tradetax;
122 for (n = 0; getcomm(n, &comt); n++) {
123 if (comt.com_maxbidder == player->cnum &&
124 comt.com_owner != 0 && comt.com_owner != player->cnum) {
125 tally += comt.com_price * comt.com_amount * buytax;
128 canspend = natp->nat_money - tally;
129 check_comm_ok(&comm);
130 if (bid * comm.com_amount * buytax > canspend) {
131 pr("You have overextended yourself in the market\n");
132 pr("You can not bid on the current items at that price.\n");
135 if (!(p = getstarg(player->argp[4], "destination sector : ", buf)))
137 if (!sarg_xy(p, &x, &y))
139 if (!getsect(x, y, §)) {
140 pr("Could not access sector");
143 if ((sect.sct_type != SCT_WAREH && sect.sct_type != SCT_HARBR) ||
144 sect.sct_own != player->cnum) {
145 pr("The destination sector is not one of your warehouses.\n");
148 if (sect.sct_effic < 60) {
149 pr("That sector is under construction.\n");
152 n = sect.sct_item[ip->i_uid];
153 qty = comm.com_amount;
154 if (qty + n > ITEM_MAX) {
155 pr("That sector cannot hold %d more %s. It currently holds %d.\n",
159 if (bid * comm.com_amount > natp->nat_money) {
160 pr("You don't have that much to spend!\n");
163 if (!check_comm_ok(&comm))
165 if (bid > 0.04 + comm.com_price) {
166 comm.com_price = bid;
167 /* Add five minutes to the time if less than 5 minutes */
169 if (((MARK_DELAY - (now - comm.com_markettime)) < 300) &&
170 comm.com_maxbidder != player->cnum) {
171 comm.com_markettime += 300;
172 /* Special case - what if so much time has gone by? Well,
173 Just reset the markettime so that only 5 minutes are left */
174 if ((MARK_DELAY - (now - comm.com_markettime)) < 0)
175 comm.com_markettime = (now - (MARK_DELAY - 300));
177 comm.com_maxbidder = player->cnum;
181 pr("Your bid is being considered.\n");
183 pr("Your bid wasn't high enough (you need to bid at least $0.05 higher\n");
184 pr("than the last bid.\n");
206 for (n = 0; getcomm(n, &comm); n++) {
207 if (comm.com_maxbidder == comm.com_owner || comm.com_owner == 0)
210 tleft = MARK_DELAY / 3600.0 - (now - comm.com_markettime) / 3600.0;
215 if (CANT_HAPPEN(comm.com_type <= I_NONE || comm.com_type > I_MAX))
217 sect = getsectp(comm.com_x, comm.com_y);
218 m = sect->sct_item[comm.com_type];
220 price = comm.com_price * comm.com_amount * buytax;
221 gain = comm.com_price * comm.com_amount;
223 natp = getnatp(comm.com_maxbidder);
224 if (natp->nat_money < price) {
225 nreport(comm.com_maxbidder, N_WELCH_DEAL, comm.com_owner, 1);
226 wu(0, comm.com_maxbidder,
227 "You didn't have enough cash to cover the cost.\n");
228 wu(0, comm.com_owner,
229 "Sale #%d fell through. Goods remain on the market.\n", n);
230 comm.com_maxbidder = comm.com_owner;
231 } else if (sect->sct_type != SCT_WAREH
232 && sect->sct_type != SCT_HARBR) {
233 wu(0, comm.com_maxbidder,
234 "Sector not a warehouse now, sale #%d fell though.\n", n);
235 wu(0, comm.com_owner,
236 "Sale #%d fell through. Goods remain on the market.\n", n);
237 comm.com_maxbidder = comm.com_owner;
238 } else if (m + comm.com_amount > ITEM_MAX) {
239 wu(0, comm.com_maxbidder,
240 "Warehouse full, sale #%d fell though.\n", n);
241 wu(0, comm.com_owner,
242 "Sale #%d fell through. Goods remain on the market.\n", n);
243 comm.com_maxbidder = comm.com_owner;
245 sect->sct_item[comm.com_type] = m + comm.com_amount;
247 nreport(comm.com_owner, N_MAKE_SALE, comm.com_maxbidder, 1);
248 wu(0, comm.com_owner, "%s bought %d %s from you for $%.2f\n",
249 cname(comm.com_maxbidder), comm.com_amount,
250 ichr[comm.com_type].i_name, gain);
251 wu(0, comm.com_maxbidder,
252 "You just bought %d %s from %s for $%.2f\n",
253 comm.com_amount, ichr[comm.com_type].i_name,
254 cname(comm.com_owner), price);
255 natp->nat_money -= roundavg(price);
257 natp = getnatp(comm.com_owner);
258 natp->nat_money += roundavg(gain);