Markus Armbruster
7e2008e7f4
Why upgrade? I'm not a lawyer, but here's my take on the differences to version 2: * Software patents: better protection against abuse of patents to prevent users from exercising the rights under the GPL. I doubt we'll get hit with a patent suit, but it's a good move just on general principles. * License compatibility: compatible with more free licenses, i.e. can "steal" more free software for use in Empire. I don't expect to steal much, but it's nice to have the option. * Definition of "source code": modernization of some details for today's networked world, to make it easier to distribute the software. Not really relevant to us now, as we normally distribute full source code. * Tivoization: this is about putting GPL-licensed software in hardware, then make the hardware refuse to run modified software. "Neat" trick to effectively deny its users their rights under the GPL. Abuse was "pioneered" by TiVo (popular digital video recorders). GPLv3 forbids it. Unlikely to become a problem for us. * Internationalization: more careful wording, to harden the license outside the US. The lawyers tell us it better be done that way. * License violations: friendlier way to deal with license violations. This has come out of past experience enforcing the GPL. * Additional permissions: Probably not relevant to us. Also include myself in the list of principal authors.
100 lines
3 KiB
C
100 lines
3 KiB
C
/*
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* Empire - A multi-player, client/server Internet based war game.
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* Copyright (C) 1986-2011, 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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* shark.c: Transfer a loan by buying it out
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*
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* Known contributors to this file:
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* Pat Loney, 1992
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* Steve McClure, 1996-2000
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*/
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#include <config.h>
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#include <math.h>
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#include "commands.h"
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#include "loan.h"
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#include "optlist.h"
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int
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shark(void)
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{
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int arg;
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time_t now;
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char *p;
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struct lonstr loan;
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struct natstr *natp;
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struct natstr *oldie;
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double owed;
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long payment;
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char buf[1024];
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if (!opt_LOANS) {
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pr("Loans are not enabled.\n");
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return RET_FAIL;
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}
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p = getstarg(player->argp[1], "Transfer which loan #: ", buf);
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if (!p)
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return RET_SYN;
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if (*p == 0)
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return RET_SYN;
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arg = atoi(p);
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if (arg < 0)
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return RET_SYN;
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/* Check if it's a valid loan to shark. That means, is it a valid loan,
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not owed to this player, with a valid duration and it's been signed. */
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if (!getloan(arg, &loan) || (loan.l_loner == player->cnum) ||
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(loan.l_ldur == 0) || (loan.l_status != LS_SIGNED)) {
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pr("Invalid loan\n");
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return RET_FAIL;
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}
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/* If we got here, we check to see if it's been defaulted on. */
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owed = loan_owed(&loan, time(&now));
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if (now <= loan.l_duedate) {
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pr("There has been no default on loan %d\n", arg);
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return RET_FAIL;
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}
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pr("That loan is worth $%.2f.\n", owed);
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natp = getnatp(player->cnum);
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payment = (long)ceil(owed * (1.0 + loan.l_irate / 100.0));
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if (payment > natp->nat_money - 100.0) {
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pr("You do not have enough to cover that loan\n");
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return RET_FAIL;
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} else {
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wu(0, loan.l_lonee,
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"%s bought loan #%d. You now owe him!\n",
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cname(player->cnum), arg);
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wu(0, loan.l_loner,
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"%s bought loan #%d out from under you for %ld\n",
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cname(player->cnum), arg, payment);
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pr("You now own loan #%d. Go break some legs.\n", arg);
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}
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oldie = getnatp(loan.l_loner);
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oldie->nat_money += payment;
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player->dolcost += payment;
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loan.l_loner = player->cnum;
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putloan(arg, &loan);
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return RET_OK;
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}
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