Markus Armbruster
fcbe36e76c
extended (beyond due date) loan time. At the due date, or after a last payment made at the due date, durations were zero in fina() and unpredictable elsewhere. With luck, debtors could abuse this to repay loans cheap (they couldn't gain cash, though), sharks to purchase loans cheap, and creditors to collect excessively.
141 lines
4 KiB
C
141 lines
4 KiB
C
/*
|
|
* Empire - A multi-player, client/server Internet based war game.
|
|
* Copyright (C) 1986-2000, Dave Pare, Jeff Bailey, Thomas Ruschak,
|
|
* Ken Stevens, Steve McClure
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
*
|
|
* ---
|
|
*
|
|
* See the "LEGAL", "LICENSE", "CREDITS" and "README" files for all the
|
|
* related information and legal notices. It is expected that any future
|
|
* projects/authors will amend these files as needed.
|
|
*
|
|
* ---
|
|
*
|
|
* repa.c: repay loan from a country
|
|
*
|
|
* Known contributors to this file:
|
|
*
|
|
*/
|
|
|
|
#include <math.h>
|
|
#include "misc.h"
|
|
#include "player.h"
|
|
#include "nat.h"
|
|
#include "loan.h"
|
|
#include "news.h"
|
|
#include "file.h"
|
|
#include "commands.h"
|
|
#include "optlist.h"
|
|
|
|
int
|
|
repa(void)
|
|
{
|
|
struct lonstr loan;
|
|
struct natstr *natp;
|
|
struct natstr *loaner;
|
|
int loan_num;
|
|
long payment;
|
|
long owe;
|
|
long normaltime;
|
|
long doubletime;
|
|
double rate_per_sec, amt;
|
|
s_char *cp;
|
|
time_t now;
|
|
s_char buf[1024];
|
|
|
|
if (!opt_LOANS) {
|
|
pr("Loans are not enabled.\n");
|
|
return RET_FAIL;
|
|
}
|
|
natp = getnatp(player->cnum);
|
|
cp = getstarg(player->argp[1], "Repay loan #? ", buf);
|
|
if (cp == 0)
|
|
return RET_SYN;
|
|
loan_num = atoi(cp);
|
|
if (loan_num < 0)
|
|
return RET_SYN;
|
|
if (!getloan(loan_num, &loan) || loan.l_lonee != player->cnum
|
|
|| loan.l_status != LS_SIGNED) {
|
|
pr("You don't owe anything on that loan.\n");
|
|
return RET_FAIL;
|
|
}
|
|
(void)time(&now);
|
|
/*
|
|
* split duration now - l_lastpay into regular (up to l_duedate)
|
|
* and extended (beyond l_duedate)
|
|
*/
|
|
normaltime = loan.l_duedate - loan.l_lastpay;
|
|
doubletime = now - loan.l_duedate;
|
|
if (normaltime < 0) {
|
|
doubletime += normaltime;
|
|
normaltime = 0;
|
|
}
|
|
|
|
rate_per_sec = loan.l_irate /
|
|
((double)loan.l_ldur * SECS_PER_DAY * 100.0);
|
|
|
|
owe = (long)(loan.l_amtdue *
|
|
((double)normaltime * rate_per_sec + 1.0 +
|
|
(double)doubletime * rate_per_sec * 2.0) + 0.5);
|
|
amt = ((double)normaltime * rate_per_sec + 1.0 +
|
|
(double)doubletime * rate_per_sec * 2.0);
|
|
if (((1 << 30) / amt) < loan.l_amtdue)
|
|
owe = (1 << 30);
|
|
else
|
|
owe = (long)(loan.l_amtdue *
|
|
((double)normaltime * rate_per_sec + 1.0 +
|
|
(double)doubletime * rate_per_sec * 2.0) + 0.5);
|
|
if ((cp = getstarg(player->argp[2], "amount? ", buf)) == 0)
|
|
return RET_SYN;
|
|
if (!check_loan_ok(&loan))
|
|
return RET_FAIL;
|
|
payment = atoi(cp);
|
|
if (payment <= 0)
|
|
return RET_SYN;
|
|
if (payment > owe) {
|
|
pr("You don't owe that much.\n");
|
|
return RET_FAIL;
|
|
}
|
|
if (natp->nat_money < payment) {
|
|
pr("You only have $%ld.\n", natp->nat_money);
|
|
return RET_FAIL;
|
|
}
|
|
player->dolcost += payment;
|
|
loaner = getnatp(loan.l_loner);
|
|
loaner->nat_money += payment;
|
|
putnat(loaner);
|
|
(void)time(&loan.l_lastpay);
|
|
if (owe <= payment) {
|
|
wu(0, loan.l_loner, "Country #%d paid off loan #%d with $%ld\n",
|
|
player->cnum, loan_num, payment);
|
|
nreport(player->cnum, N_REPAY_LOAN, loan.l_loner, 1);
|
|
loan.l_status = LS_FREE;
|
|
loan.l_ldur = 0;
|
|
pr("Congratulations, you've paid off the loan!\n");
|
|
} else {
|
|
wu(0, loan.l_loner,
|
|
"Country #%d paid $%.2f on loan %d\n", player->cnum,
|
|
(double)payment, loan_num);
|
|
loan.l_amtdue = owe - payment;
|
|
loan.l_amtpaid += payment;
|
|
}
|
|
if (!putloan(loan_num, &loan)) {
|
|
pr("Can't save loan; get help!\n");
|
|
return RET_SYS;
|
|
}
|
|
return RET_OK;
|
|
}
|