Markus Armbruster
beba530119
File locking doesn't make sense, must be a leftover from the distant past. Remove. Callers changed.
116 lines
3.1 KiB
C
116 lines
3.1 KiB
C
/*
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* Empire - A multi-player, client/server Internet based war game.
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* Copyright (C) 1986-2000, Dave Pare, Jeff Bailey, Thomas Ruschak,
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* Ken Stevens, Steve McClure
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*
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* This program 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 2 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, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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* ---
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*
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* See the "LEGAL", "LICENSE", "CREDITS" and "README" files for all the
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* related information and legal notices. It is expected that any future
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* projects/authors will amend these files as needed.
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*
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* ---
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*
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* mult.c: Set per-nation list of price multipliers
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*
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* Known contributors to this file:
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* Dave Pare, 1986
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*/
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#include "misc.h"
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#include "player.h"
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#include "var.h"
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#include "nat.h"
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#include "file.h"
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#include "xy.h"
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#include "nsc.h"
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#include "commands.h"
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#include "optlist.h"
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#include <math.h> /* bailey@math-cs.kent.edu */
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static void multsingle(natid us, natid them, struct natstr *natp);
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int
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mult(void)
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{
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struct nstr_item ni;
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struct natstr nat;
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int nats;
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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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pr("The mult command is no longer used.\n");
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if (!snxtitem(&ni, EF_NATION, player->argp[1]))
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return RET_SYN;
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if (commread() < 0) {
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pr("Unable to read commodity file; get help!\n");
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return RET_SYS;
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}
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nats = 0;
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while (!player->aborted && nxtitem(&ni, (s_char *)&nat)) {
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if ((nat.nat_stat & STAT_NORM) == 0)
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continue;
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multsingle(player->cnum, (natid)ni.cur, &nat);
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nats++;
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}
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pr("%d nation multipliers changed\n", nats);
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return RET_OK;
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}
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/*
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* Set the multipler for a single country.
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*/
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static void
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multsingle(natid us, natid them, struct natstr *natp)
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{
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extern double minmult;
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extern double maxmult;
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double price;
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s_char *p;
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s_char prompt[128];
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s_char buf[1024];
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sprintf(prompt, "%s (%7.3f) : ", natp->nat_cnam, multread(us, them));
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p = getstarg(player->argp[2], prompt, buf);
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if (p == 0 || *p == 0)
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return;
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if ((price = atof(p)) == 0.0)
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return;
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#if defined(HUGE)
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if ((price == HUGE) || (price > 1000000.0)) /* Inf causes overflow. */
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#else
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if (price > 1000000.0)
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#endif
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price = 1000000.0; /* bailey@math-cs.kent.edu */
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/*
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* no free lunches!
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*/
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if (price <= minmult)
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price = minmult;
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if (price >= maxmult)
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price = maxmult;
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if (commread() < 0) {
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pr("Unable to re-read commodity file; get help!\n");
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return;
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}
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multset(them, price);
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if (commwrite() < 0) {
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pr("Unable to write out commodity file; get help!\n");
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}
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}
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