147 lines
4 KiB
C
147 lines
4 KiB
C
/*
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* Empire - A multi-player, client/server Internet based war game.
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* Copyright (C) 1986-2015, Dave Pare, Jeff Bailey, Thomas Ruschak,
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* Ken Stevens, Steve McClure, Markus Armbruster
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*
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* Empire is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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* ---
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*
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* See files README, COPYING and CREDITS in the root of the source
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* tree for related information and legal notices. It is expected
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* that future projects/authors will amend these files as needed.
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*
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* ---
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*
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* mark.c: Display report for commodities
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*
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* Known contributors to this file:
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* Dave Pare, 1986
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* Pat Loney, 1992
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* Steve McClure, 1996
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* Markus Armbruster, 2004-2013
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*/
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#include <config.h>
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#include "commands.h"
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#include "commodity.h"
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#include "item.h"
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#include "optlist.h"
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int
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mark(void)
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{
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char buf[1024];
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char *p;
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struct ichrstr *ip;
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if (!opt_MARKET) {
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pr("The market is disabled.\n");
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return RET_FAIL;
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}
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if (player->argp[1]) {
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p = getstarg(player->argp[1], "What commodity (or 'all')? ", buf);
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if (!p)
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return RET_SYN;
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if (!strcmp(p, "all"))
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return display_mark(I_NONE, 0);
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else {
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ip = item_by_name(p);
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if (!ip)
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return RET_SYN;
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return display_mark(ip->i_uid, 0);
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}
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}
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return display_mark(I_NONE, 1);
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}
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static void
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pr_mark(struct comstr *comm)
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{
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time_t now, tleft;
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(void)time(&now);
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tleft = comm->com_markettime + MARK_DELAY - now;
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if (tleft < 0)
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tleft = 0;
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pr(" %3d $%12.2f %2d %5.2f hrs (%3d) %c %6d ",
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comm->com_uid, comm->com_price, comm->com_maxbidder, tleft / 3600.0,
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comm->com_owner, ichr[comm->com_type].i_mnem, comm->com_amount);
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if (comm->com_owner == player->cnum || player->god)
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pr("%s", xyas(comm->sell_x, comm->sell_y, player->cnum));
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pr("\n");
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}
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int
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display_mark(i_type only_itype, int only_cheapest)
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{
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struct comstr comm;
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struct comstr comm2;
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int sellers = 0;
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int cnt = 0;
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int cheapest_items[I_MAX + 1];
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i_type i;
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/* Execute trades so report lists only lots that are still available. */
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check_market();
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check_trade();
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pr("\n Empire Market Report\n ");
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prdate();
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pr(" lot high bid/unit by time left owner item amount sector\n");
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pr(" --- ------------- -- --------- ----- ---- ------ ------\n");
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if (only_cheapest) {
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for (i = I_NONE + 1; i <= I_MAX; i++)
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cheapest_items[i] = -1;
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for (sellers = 0; getcomm(sellers, &comm); sellers++) {
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if (comm.com_owner == 0)
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continue;
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if (CANT_HAPPEN(comm.com_type <= I_NONE || comm.com_type > I_MAX))
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continue;
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if (cheapest_items[comm.com_type] != -1) {
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getcomm(cheapest_items[comm.com_type], &comm2);
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if (comm.com_price < comm2.com_price) {
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cheapest_items[comm.com_type] = sellers;
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}
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} else {
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cheapest_items[comm.com_type] = sellers;
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}
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}
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CANT_HAPPEN(only_itype != I_NONE); /* not implemented */
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for (i = I_NONE + 1; i <= I_MAX; i++) {
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if (cheapest_items[i] == -1)
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continue;
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getcomm(cheapest_items[i], &comm);
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cnt = 1;
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pr_mark(&comm);
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}
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} else {
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for (sellers = 0; getcomm(sellers, &comm); sellers++) {
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if (comm.com_owner == 0)
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continue;
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if (only_itype != I_NONE && comm.com_type != only_itype)
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continue;
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cnt = 1;
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pr_mark(&comm);
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}
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}
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if (cnt <= 0)
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pr("\nHmmmm, the market seems to be empty today.\n");
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else
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pr("\nLooks just like Christmas at K-mart, doesn't it!\n");
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return RET_OK;
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}
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