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 * buy.c: Buy commodities from other nations
30 * Known contributors to this file:
33 * Steve McClure, 1996-2000
46 #include "commodity.h"
57 * format: buy <COMMODITY>
81 pr("The market is disabled.\n");
84 natp = getnatp(player->cnum);
85 display_mark(player->argp[1]);
87 p = getstarg(player->argp[2], "Which lot are you bidding on: ", buf);
95 if (!getcomm(o, &comm) || comm.com_owner == 0) {
96 pr("Invalid lot number.\n");
99 if (player->argp[1] && *(player->argp[1]) &&
100 comm.com_type != player->argp[1][0]) {
101 pr("That lot is not of the type you specified.\n");
104 if (comm.com_owner == player->cnum) {
105 pr("You can't bid on your own lot.\n");
108 pr("WARNING! This market issues credit. If you make more\n");
109 pr(" bids than your treasury can cover at the time of sale,\n");
110 pr(" you can potentially go into financial ruin, and see no\n");
111 pr(" gains. You have been warned.\n\n");
112 if ((p = getstarg(player->argp[3], "How much per unit: ", buf)) == 0)
117 if (natp->nat_money < (bid * comm.com_amount * buytax)) {
118 pr("This purchase would cost %.2f, %.2f more than you have.\n",
119 bid * comm.com_amount * buytax,
120 bid * comm.com_amount * buytax - natp->nat_money);
123 /* check to see if all of the bids that this player has out plus this new bid
124 would make him go broke. Ken, I ought to skin you alive for making me code
127 for (q = 0; gettrade(q, &tmpt); q++) {
128 if (tmpt.trd_maxbidder == player->cnum &&
129 tmpt.trd_unitid >= 0 && tmpt.trd_owner != player->cnum) {
130 tally += tmpt.trd_maxprice * tradetax;
133 for (q = 0; getcomm(q, &comt); q++) {
134 if (comt.com_maxbidder == player->cnum &&
135 comt.com_owner != 0 && comt.com_owner != player->cnum) {
136 tally += (comt.com_maxprice * comt.com_amount) * buytax;
139 canspend = natp->nat_money - tally;
141 if ((bid * comm.com_amount * buytax) > canspend) {
142 pr("You have overextended yourself in the market\n");
143 pr("You can not bid on the current items at that price.\n");
146 if (!(p = getstarg(player->argp[4], "destination sector : ", buf)))
148 if (!sarg_xy(p, &x, &y))
150 if (!getsect(x, y, §)) {
151 pr("Could not access sector");
154 if ((sect.sct_type != SCT_WAREH && sect.sct_type != SCT_HARBR) ||
155 sect.sct_own != player->cnum) {
156 pr("The destination sector is not one of your warehouses.\n");
159 if (sect.sct_effic < 60) {
160 pr("That sector is under construction.\n");
163 ip = whichitem(comm.com_type);
164 n = getvar(ip->i_vtype, (char *)§, EF_SECTOR);
165 qty = comm.com_amount;
166 if (qty + n > 9990) {
167 pr("That sector cannot hold %d more %s. It currently holds %d.\n",
171 /* First we check for room, then we yank back. Probably not necessary. */
172 if (putvar(ip->i_vtype, n + qty, (char *)§, EF_SECTOR) <= 0) {
173 pr("No room to store %s in %s\n",
174 ip->i_name, xyas(sect.sct_x, sect.sct_y, player->cnum));
177 if (putvar(ip->i_vtype, n, (char *)§, EF_SECTOR) <= 0) {
178 pr("Something weird just happened, tell the deity.\n");
179 logerror("buy.c: putvar failed.\n");
182 if ((bid * comm.com_amount) > natp->nat_money) {
183 pr("You don't have that much to spend!\n");
187 if (!ncomm.com_owner) {
188 pr("That lot has been taken off the market.\n");
191 if (bid > 0.04 + comm.com_maxprice) {
192 comm.com_maxprice = bid;
193 /* Add five minutes to the time if less than 5 minutes */
195 if (((MARK_DELAY - (now - comm.com_markettime)) < 300) &&
196 comm.com_maxbidder != player->cnum) {
197 comm.com_markettime += 300;
198 /* Special case - what if so much time has gone by? Well,
199 Just reset the markettime so that only 5 minutes are left */
200 if ((MARK_DELAY - (now - comm.com_markettime)) < 0)
201 comm.com_markettime = (now - (MARK_DELAY - 300));
203 comm.com_maxbidder = player->cnum;
207 pr("Your bid is being considered.\n");
209 pr("Your bid wasn't high enough (you need to bid at least $0.05 higher\n");
210 pr("than the last bid.\n");
236 long outstanding; /* Outstanding debt */
237 long couval; /* Value of country's goods */
241 /* logerror("Checking the market.\n");*/
242 for (n = 0; getcomm(n, &comm); n++) {
243 if (comm.com_maxbidder == comm.com_owner || comm.com_owner == 0)
246 tleft = MARK_DELAY / 3600.0 - (now - comm.com_markettime) / 3600.0;
251 ip = whichitem(comm.com_type);
252 sect = getsectp(comm.com_x, comm.com_y);
253 m = getvar(ip->i_vtype, (char *)sect, EF_SECTOR);
257 price = comm.com_maxprice * comm.com_amount * buytax;
258 gain = comm.com_maxprice * comm.com_amount;
260 natp = getnatp(comm.com_maxbidder);
261 tmoney = natp->nat_money;
264 if (tmoney < price && tmoney > 0) {
265 monleft = price - (tmoney - 1);
267 price = price - monleft;
268 } else if (tmoney > 0) {
270 tmoney = tmoney - price;
273 /* Subtract the amount of money that needs to come out in a loan. */
277 /* Try to make a loan for the rest from the owner. */
278 if (monleft > 0 && tmoney > 0) {
279 if ((float)((float)price / (float)(price + monleft)) < 0.1) {
280 wu(0, comm.com_maxbidder,
281 "You need at least 10 percent down to purchase something on credit.\n");
283 couval = get_couval(comm.com_maxbidder);
284 outstanding = get_outstand(comm.com_maxbidder);
285 couval = couval - outstanding;
286 if (couval > monleft) {
289 for (j = 0; getloan(j, &loan); j++) {
290 if (loan.l_status != LS_FREE)
296 ef_extend(EF_LOAN, 1);
297 loan.l_status = LS_SIGNED;
298 loan.l_loner = comm.com_owner;
299 loan.l_lonee = comm.com_maxbidder;
303 loan.l_amtdue = monleft;
304 time(&loan.l_lastpay);
306 (loan.l_ldur * SECS_PER_DAY) + loan.l_lastpay;
308 if (!putloan(j, &loan))
309 logerror("Error writing to the loan file.\n");
312 nreport(comm.com_maxbidder, N_FIN_TROUBLE,
314 wu(0, comm.com_maxbidder,
315 "You just took loan #%d for $%.2f to cover the cost of your purchase.\n",
317 wu(0, comm.com_owner,
318 "You just extended loan #%d to %s to help with the purchase cose.\n",
319 j, cname(comm.com_maxbidder));
321 nreport(comm.com_maxbidder, N_CREDIT_JUNK,
323 wu(0, comm.com_maxbidder,
324 "You don't have enough credit to get a loan.\n");
325 wu(0, comm.com_owner,
326 "You just turned down a loan to %s.\n",
327 cname(comm.com_maxbidder));
334 nreport(comm.com_maxbidder, N_WELCH_DEAL, comm.com_owner, 1);
335 wu(0, comm.com_maxbidder,
336 "You didn't have enough cash/credit to cover the cost.\n");
337 wu(0, comm.com_owner,
338 "Sale #%d fell through. Goods remain on the market.\n", n);
339 comm.com_maxbidder = comm.com_owner;
340 } else if (sect->sct_type != SCT_WAREH
341 && sect->sct_type != SCT_HARBR) {
342 wu(0, comm.com_maxbidder,
343 "Sector not a warehouse now, sale #%d fell though.\n", n);
344 wu(0, comm.com_owner,
345 "Sale #%d fell through. Goods remain on the market.\n", n);
346 comm.com_maxbidder = comm.com_owner;
347 } else if (putvar(ip->i_vtype, m + comm.com_amount,
348 (char *)sect, EF_SECTOR) <= 0) {
349 wu(0, comm.com_maxbidder,
350 "Warehouse full, sale #%d fell though.\n", n);
351 wu(0, comm.com_owner,
352 "Sale #%d fell through. Goods remain on the market.\n", n);
353 comm.com_maxbidder = comm.com_owner;
356 nreport(comm.com_owner, N_MAKE_SALE, comm.com_maxbidder, 1);
357 wu(0, comm.com_owner, "%s bought %d %c's from you for $%.2f\n",
358 cname(comm.com_maxbidder), comm.com_amount,
359 comm.com_type, gain);
360 wu(0, comm.com_maxbidder,
361 "You just bought %d %c's from %s for $%.2f\n",
362 comm.com_amount, comm.com_type, cname(comm.com_owner),
364 natp = getnatp(comm.com_owner);
365 /* Make sure we subtract the amount that came out in a loan */
366 natp->nat_money += (gain - subleft);
367 natp = getnatp(comm.com_maxbidder);
368 natp->nat_money = tmoney;
374 /* logerror("Done checking the market.\n");*/