2 * Empire - A multi-player, client/server Internet based war game.
3 * Copyright (C) 1986-2017, 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
33 * Markus Armbruster, 2004-2013
40 #include "commodity.h"
47 * format: buy <COMMODITY>
70 pr("The market is disabled.\n");
73 natp = getnatp(player->cnum);
74 ip = whatitem(player->argp[1], "Commodity you want to buy: ");
77 display_mark(ip->i_uid, 0);
79 p = getstarg(player->argp[2], "Which lot are you bidding on: ", buf);
87 if (!getcomm(o, &comm) || comm.com_owner == 0) {
88 pr("Invalid lot number.\n");
91 if (comm.com_type != ip->i_uid) {
92 pr("That lot is not of the type you specified.\n");
95 if (comm.com_owner == player->cnum) {
96 pr("You can't bid on your own lot.\n");
99 if (!(p = getstarg(player->argp[3], "How much per unit: ", buf)))
104 if (natp->nat_money < bid * comm.com_amount * buytax) {
105 pr("This purchase would cost %.2f, %.2f more than you have.\n",
106 bid * comm.com_amount * buytax,
107 bid * comm.com_amount * buytax - natp->nat_money);
110 /* check to see if all of the bids that this player has out plus this new bid
111 would make him go broke. Ken, I ought to skin you alive for making me code
114 for (n = 0; gettrade(n, &tmpt); n++) {
115 if (tmpt.trd_maxbidder == player->cnum &&
116 tmpt.trd_unitid >= 0 && tmpt.trd_owner != player->cnum) {
117 tally += tmpt.trd_price * tradetax;
120 for (n = 0; getcomm(n, &comt); n++) {
121 if (comt.com_maxbidder == player->cnum &&
122 comt.com_owner != 0 && comt.com_owner != player->cnum) {
123 tally += comt.com_price * comt.com_amount * buytax;
126 canspend = natp->nat_money - tally;
127 check_comm_ok(&comm);
128 if (bid * comm.com_amount * buytax > canspend) {
129 pr("You have overextended yourself in the market\n");
130 pr("You can not bid on the current items at that price.\n");
133 if (!(p = getstarg(player->argp[4], "destination sector : ", buf)))
135 if (!sarg_xy(p, &x, &y))
137 if (!getsect(x, y, §)) {
138 pr("Could not access sector");
141 if ((sect.sct_type != SCT_WAREH && sect.sct_type != SCT_HARBR) ||
142 sect.sct_own != player->cnum) {
143 pr("The destination sector is not one of your warehouses.\n");
146 if (sect.sct_effic < 60) {
147 pr("That sector is under construction.\n");
150 n = sect.sct_item[ip->i_uid];
151 qty = comm.com_amount;
152 if (qty + n > ITEM_MAX) {
153 pr("That sector cannot hold %d more %s. It currently holds %d.\n",
157 if (bid * comm.com_amount > natp->nat_money) {
158 pr("You don't have that much to spend!\n");
161 if (!check_comm_ok(&comm))
163 if (bid > 0.04 + comm.com_price) {
164 comm.com_price = bid;
166 if (comm.com_markettime + MARK_DELAY - now < minutes(5) &&
167 comm.com_maxbidder != player->cnum)
168 comm.com_markettime = now + minutes(5) - MARK_DELAY;
169 comm.com_maxbidder = player->cnum;
173 pr("Your bid is being considered.\n");
175 pr("Your bid wasn't high enough (you need to bid at least $0.05 higher\n");
176 pr("than the last bid.\n");
197 for (n = 0; getcomm(n, &comm); n++) {
198 if (comm.com_maxbidder == comm.com_owner || comm.com_owner == 0)
201 if (comm.com_markettime + MARK_DELAY > now)
203 if (CANT_HAPPEN(comm.com_type <= I_NONE || comm.com_type > I_MAX))
205 sect = getsectp(comm.com_x, comm.com_y);
206 m = sect->sct_item[comm.com_type];
208 price = comm.com_price * comm.com_amount * buytax;
209 gain = comm.com_price * comm.com_amount;
211 natp = getnatp(comm.com_maxbidder);
212 if (natp->nat_money < price) {
213 nreport(comm.com_maxbidder, N_WELCH_DEAL, comm.com_owner, 1);
214 wu(0, comm.com_maxbidder,
215 "You didn't have enough cash to cover the cost.\n");
216 wu(0, comm.com_owner,
217 "Sale #%d fell through. Goods remain on the market.\n", n);
218 comm.com_maxbidder = comm.com_owner;
219 } else if (sect->sct_type != SCT_WAREH
220 && sect->sct_type != SCT_HARBR) {
221 wu(0, comm.com_maxbidder,
222 "Sector not a warehouse now, sale #%d fell though.\n", n);
223 wu(0, comm.com_owner,
224 "Sale #%d fell through. Goods remain on the market.\n", n);
225 comm.com_maxbidder = comm.com_owner;
226 } else if (m + comm.com_amount > ITEM_MAX) {
227 wu(0, comm.com_maxbidder,
228 "Warehouse full, sale #%d fell though.\n", n);
229 wu(0, comm.com_owner,
230 "Sale #%d fell through. Goods remain on the market.\n", n);
231 comm.com_maxbidder = comm.com_owner;
233 sect->sct_item[comm.com_type] = m + comm.com_amount;
235 nreport(comm.com_owner, N_MAKE_SALE, comm.com_maxbidder, 1);
236 wu(0, comm.com_owner, "%s bought %d %s from you for $%.2f\n",
237 cname(comm.com_maxbidder), comm.com_amount,
238 ichr[comm.com_type].i_name, gain);
239 wu(0, comm.com_maxbidder,
240 "You just bought %d %s from %s for $%.2f\n",
241 comm.com_amount, ichr[comm.com_type].i_name,
242 cname(comm.com_owner), price);
243 natp->nat_money -= roundavg(price);
245 natp = getnatp(comm.com_owner);
246 natp->nat_money += roundavg(gain);