empserver/src/lib/commands/shark.c

131 lines
3.6 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.
*
* ---
*
* shark.c: Transfer a loan by buying it out
*
* Known contributors to this file:
* Pat Loney, 1992
* Steve McClure, 1996-2000
*/
#include <math.h>
#include "misc.h"
#include "var.h"
#include "file.h"
#include "sect.h"
#include "item.h"
#include "loan.h"
#include "news.h"
#include "nat.h"
#include "xy.h"
#include "player.h"
#include "commands.h"
#include "optlist.h"
int
shark(void)
{
register int arg;
time_t now;
char *p;
struct lonstr loan;
struct natstr *natp;
struct natstr *oldie;
long due;
long last;
long rdur;
long xdur;
double rate;
double owed;
long payment;
s_char buf[1024];
if (!opt_LOANS) {
pr("Loans are not enabled.\n");
return RET_FAIL;
}
p = getstarg(player->argp[1], "Transfer which loan #: ", buf);
if (p == 0)
return RET_SYN;
if (*p == 0)
return RET_SYN;
arg = atoi(p);
if (arg < 0)
return RET_SYN;
/* Check if it's a valid loan to shark. That means, is it a valid loan,
not owed to this player, with a valid duration and it's been signed. */
if (!getloan(arg,&loan) || (loan.l_loner == player->cnum) ||
(loan.l_ldur == 0) || (loan.l_status != LS_SIGNED)) {
pr("Invalid loan\n");
return RET_FAIL;
}
/* If we got here, we check to see if it's been defaulted on. */
(void) time(&now);
due = loan.l_duedate;
if (now <= due) {
pr("There has been no default on loan %d\n", arg);
return RET_FAIL;
}
last = loan.l_lastpay;
if (last < due && due < now) {
rdur = due - last;
xdur = now - due;
} else if (due < last) {
rdur = 0;
xdur = now - last;
}
rate = loan.l_irate / (loan.l_ldur * 8.64e6);
owed = ((rdur * rate) + (xdur * rate * 2.0) + 1.0);
if (((1 << 30) / owed) < loan.l_amtdue)
owed = (1 << 30);
else
owed *= loan.l_amtdue;
pr("That loan is worth $%.2f.\n", owed);
natp = getnatp(player->cnum);
payment = owed * (1.0 + loan.l_irate / 100.0);
if (payment > natp->nat_money - 100.0){
pr("You do not have enough to cover that loan\n");
return RET_FAIL;
}else{
wu(0, loan.l_lonee,
"%s bought loan #%d. You now owe him!\n",
cname(player->cnum),
arg);
wu(0, loan.l_loner,
"%s bought loan #%d out from under you for %d\n",
cname(player->cnum), arg, payment);
pr("You now own loan #%d. Go break some legs.\n", arg);
}
/* NAT_DELTA(natp->nat_money, loan.l_loner, payment);*/
oldie = getnatp(loan.l_loner);
oldie->nat_money += payment;
player->dolcost += payment;
loan.l_loner = player->cnum;
putloan(arg, &loan);
return RET_OK;
}