2 * Empire - A multi-player, client/server Internet based war game.
3 * Copyright (C) 1986-2007, 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 * buy.c: Buy commodities from other nations
30 * Known contributors to this file:
33 * Steve McClure, 1996-2000
39 #include "commodity.h"
50 * format: buy <COMMODITY>
74 pr("The market is disabled.\n");
77 natp = getnatp(player->cnum);
78 ip = whatitem(player->argp[1], "Commodity you want to buy: ");
81 display_mark(ip->i_uid, 0);
83 p = getstarg(player->argp[2], "Which lot are you bidding on: ", buf);
91 if (!getcomm(o, &comm) || comm.com_owner == 0) {
92 pr("Invalid lot number.\n");
95 if (comm.com_type != ip->i_uid) {
96 pr("That lot is not of the type you specified.\n");
99 if (comm.com_owner == player->cnum) {
100 pr("You can't bid on your own lot.\n");
103 if ((p = getstarg(player->argp[3], "How much per unit: ", buf)) == 0)
108 if (natp->nat_money < bid * comm.com_amount * buytax) {
109 pr("This purchase would cost %.2f, %.2f more than you have.\n",
110 bid * comm.com_amount * buytax,
111 bid * comm.com_amount * buytax - natp->nat_money);
114 /* check to see if all of the bids that this player has out plus this new bid
115 would make him go broke. Ken, I ought to skin you alive for making me code
118 for (q = 0; gettrade(q, &tmpt); q++) {
119 if (tmpt.trd_maxbidder == player->cnum &&
120 tmpt.trd_unitid >= 0 && tmpt.trd_owner != player->cnum) {
121 tally += tmpt.trd_price * tradetax;
124 for (q = 0; getcomm(q, &comt); q++) {
125 if (comt.com_maxbidder == player->cnum &&
126 comt.com_owner != 0 && comt.com_owner != player->cnum) {
127 tally += comt.com_price * comt.com_amount * buytax;
130 canspend = natp->nat_money - tally;
132 if (bid * comm.com_amount * buytax > canspend) {
133 pr("You have overextended yourself in the market\n");
134 pr("You can not bid on the current items at that price.\n");
137 if (!(p = getstarg(player->argp[4], "destination sector : ", buf)))
139 if (!sarg_xy(p, &x, &y))
141 if (!getsect(x, y, §)) {
142 pr("Could not access sector");
145 if ((sect.sct_type != SCT_WAREH && sect.sct_type != SCT_HARBR) ||
146 sect.sct_own != player->cnum) {
147 pr("The destination sector is not one of your warehouses.\n");
150 if (sect.sct_effic < 60) {
151 pr("That sector is under construction.\n");
154 n = sect.sct_item[ip->i_uid];
155 qty = comm.com_amount;
156 if (qty + n > ITEM_MAX) {
157 pr("That sector cannot hold %d more %s. It currently holds %d.\n",
161 if (bid * comm.com_amount > natp->nat_money) {
162 pr("You don't have that much to spend!\n");
166 if (!ncomm.com_owner) {
167 pr("That lot has been taken off the market.\n");
170 if (bid > 0.04 + comm.com_price) {
171 comm.com_price = bid;
172 /* Add five minutes to the time if less than 5 minutes */
174 if (((MARK_DELAY - (now - comm.com_markettime)) < 300) &&
175 comm.com_maxbidder != player->cnum) {
176 comm.com_markettime += 300;
177 /* Special case - what if so much time has gone by? Well,
178 Just reset the markettime so that only 5 minutes are left */
179 if ((MARK_DELAY - (now - comm.com_markettime)) < 0)
180 comm.com_markettime = (now - (MARK_DELAY - 300));
182 comm.com_maxbidder = player->cnum;
186 pr("Your bid is being considered.\n");
188 pr("Your bid wasn't high enough (you need to bid at least $0.05 higher\n");
189 pr("than the last bid.\n");
214 /* logerror("Checking the market.\n");*/
215 for (n = 0; getcomm(n, &comm); n++) {
216 if (comm.com_maxbidder == comm.com_owner || comm.com_owner == 0)
219 tleft = MARK_DELAY / 3600.0 - (now - comm.com_markettime) / 3600.0;
224 if (CANT_HAPPEN(comm.com_type <= I_NONE || comm.com_type > I_MAX))
226 sect = getsectp(comm.com_x, comm.com_y);
227 m = sect->sct_item[comm.com_type];
231 price = comm.com_price * comm.com_amount * buytax;
232 gain = comm.com_price * comm.com_amount;
234 natp = getnatp(comm.com_maxbidder);
235 tmoney = natp->nat_money;
238 if (tmoney < price && tmoney > 0) {
239 monleft = price - (tmoney - 1);
241 price = price - monleft;
242 } else if (tmoney > 0) {
244 tmoney = tmoney - price;
247 /* Subtract the amount of money that needs to come out in a loan. */
251 nreport(comm.com_maxbidder, N_WELCH_DEAL, comm.com_owner, 1);
252 wu(0, comm.com_maxbidder,
253 "You didn't have enough cash/credit to cover the cost.\n");
254 wu(0, comm.com_owner,
255 "Sale #%d fell through. Goods remain on the market.\n", n);
256 comm.com_maxbidder = comm.com_owner;
257 } else if (sect->sct_type != SCT_WAREH
258 && sect->sct_type != SCT_HARBR) {
259 wu(0, comm.com_maxbidder,
260 "Sector not a warehouse now, sale #%d fell though.\n", n);
261 wu(0, comm.com_owner,
262 "Sale #%d fell through. Goods remain on the market.\n", n);
263 comm.com_maxbidder = comm.com_owner;
264 } else if (m + comm.com_amount > ITEM_MAX) {
265 wu(0, comm.com_maxbidder,
266 "Warehouse full, sale #%d fell though.\n", n);
267 wu(0, comm.com_owner,
268 "Sale #%d fell through. Goods remain on the market.\n", n);
269 comm.com_maxbidder = comm.com_owner;
271 sect->sct_item[comm.com_type] = m + comm.com_amount;
273 nreport(comm.com_owner, N_MAKE_SALE, comm.com_maxbidder, 1);
274 wu(0, comm.com_owner, "%s bought %d %s from you for $%.2f\n",
275 cname(comm.com_maxbidder), comm.com_amount,
276 ichr[comm.com_type].i_name, gain);
277 wu(0, comm.com_maxbidder,
278 "You just bought %d %s from %s for $%.2f\n",
279 comm.com_amount, ichr[comm.com_type].i_name,
280 cname(comm.com_owner), gain * buytax);
281 natp = getnatp(comm.com_owner);
282 /* Make sure we subtract the amount that came out in a loan */
283 natp->nat_money += (gain - subleft);
284 natp = getnatp(comm.com_maxbidder);
285 natp->nat_money = tmoney;
291 /* logerror("Done checking the market.\n");*/