git.pond.sub.org Git - empserver/blob - src/lib/commands/offe.c

   1 /*
   2  *  Empire - A multi-player, client/server Internet based war game.
   3  *  Copyright (C) 1986-2000, Dave Pare, Jeff Bailey, Thomas Ruschak,
   4  *                           Ken Stevens, Steve McClure
   5  *
   6  *  This program is free software; you can redistribute it and/or modify
   7  *  it under the terms of the GNU General Public License as published by
   8  *  the Free Software Foundation; either version 2 of the License, or
   9  *  (at your option) any later version.
  10  *
  11  *  This program is distributed in the hope that it will be useful,
  12  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  *  GNU General Public License for more details.
  15  *
  16  *  You should have received a copy of the GNU General Public License
  17  *  along with this program; if not, write to the Free Software
  18  *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19  *
  20  *  ---
  21  *
  22  *  See the "LEGAL", "LICENSE", "CREDITS" and "README" files for all the
  23  *  related information and legal notices. It is expected that any future
  24  *  projects/authors will amend these files as needed.
  25  *
  26  *  ---
  27  *
  28  *  offe.c: Offer a loan or treaty
  29  *
  30  *  Known contributors to this file:
  31  *     Pat Loney, 1992
  32  *     Steve McClure, 1996
  33  */
  34
  35 #include "misc.h"
  36 #include "player.h"
  37 #include "xy.h"
  38 #include "nsc.h"
  39 #include "nat.h"
  40 #include "loan.h"
  41 #include "treaty.h"
  42 #include "file.h"
  43 #include "commands.h"
  44 #include "optlist.h"
  45
  46 static int do_treaty(void);
  47 static int do_loan(void);
  48
  49 int
  50 offe(void)
  51 {
  52         register s_char *cp;
  53         s_char  buf[1024];
  54
  55         if (!(cp = getstarg(player->argp[1], "loan or treaty? ", buf)) || !*cp)
  56                 return RET_SYN;
  57
  58         switch (*cp) {
  59         case 'l':
  60                 if (!opt_LOANS) {
  61                     pr("Loans are not enabled.\n");
  62                     return RET_FAIL;
  63                 }
  64                 return do_loan();
  65         case 't':
  66                 if (!opt_TREATIES) {
  67                     pr("Treaties are not enabled.\n");
  68                     return RET_FAIL;
  69                 }
  70                 return do_treaty();
  71         default:
  72                 pr("You must specify \"loan\" as there are no treaties.\n");
  73                 return RET_SYN;
  74         }
  75 }
  76
  77 static int
  78 do_treaty(void)
  79 {
  80         register s_char *cp;
  81         register int ourcond;
  82         register int theircond;
  83         register int j;
  84         struct  tchrstr *tcp;
  85         struct  trtstr trty;
  86         struct  nstr_item nstr;
  87         natid   recipient;
  88         time_t  now;
  89         int     n;
  90         struct  natstr *natp;
  91         s_char  prompt[128];
  92         s_char  buf[1024];
  93
  94         if ((n = natarg(player->argp[2], "Treaty offered to? ")) < 0)
  95                 return RET_SYN;
  96         recipient = n;
  97         if (recipient == player->cnum) {
  98                 pr("You can't sign a treaty with yourself!\n");
  99                 return RET_FAIL;
 100         }
 101         natp = getnatp(recipient);
 102         if (player->cnum && (getrejects(player->cnum,natp) & REJ_TREA)) {
 103                 pr("%s is rejecting your treaties.\n",
 104                         cname(recipient));
 105                 return RET_SYN;
 106         }
 107         pr("Terms for %s:\n", cname(recipient));
 108         theircond = 0;
 109         for (tcp = tchr; tcp && tcp->t_cond; tcp++) {
 110                 sprintf(prompt, "%s? ", tcp->t_name);
 111                 if ((cp = getstring(prompt, buf)) == 0)
 112                         return RET_FAIL;
 113                 if (*cp == 'y')
 114                         theircond |= tcp->t_cond;
 115         }
 116         pr("Terms for you:\n");
 117         ourcond = 0;
 118         for (tcp = tchr; tcp && tcp->t_cond; tcp++) {
 119                 sprintf(prompt, "%s? ", tcp->t_name);
 120                 if ((cp = getstring(prompt, buf)) == 0)
 121                         return RET_FAIL;
 122                 if (*cp == 'y')
 123                         ourcond |= tcp->t_cond;
 124         }
 125         if (ourcond == 0 && theircond == 0) {
 126                 pr("Treaties with no clauses aren't very useful, boss!\n");
 127                 return RET_SYN;
 128         }
 129         cp = getstring("Proposed treaty duration? (days) ", buf);
 130         if (cp == 0)
 131                 return RET_FAIL;
 132         j = atopi(cp);
 133         if (j == 0) {
 134                 pr("Bad treaty duration.\n");
 135                 return RET_SYN;
 136         }
 137         (void) time(&now);
 138         snxtitem_all(&nstr,EF_TREATY);
 139         while (nxtitem(&nstr, (s_char *)&trty)) {
 140                 if (trty.trt_status == TS_FREE) {
 141                         break;
 142                 }
 143         }
 144         trty.trt_acond = ourcond;
 145         trty.trt_bcond = theircond;
 146         trty.trt_status = TS_PROPOSED;
 147         trty.trt_cna = player->cnum;
 148         trty.trt_cnb = recipient;
 149         trty.trt_exp = j * SECS_PER_DAY + now;
 150         if (!puttre(nstr.cur,&trty)) {
 151                 pr("Couldn't save treaty; get help.\n");
 152                 return RET_SYS;
 153         }
 154         wu(0, recipient, "Treaty #%d proposed to you by %s\n",
 155                 nstr.cur, cname(player->cnum));
 156         pr("You have proposed treaty #%d\n", nstr.cur);
 157         return RET_OK;
 158 }
 159
 160 static int
 161 do_loan(void)
 162 {
 163         register int amt, irate, dur, maxloan;
 164         struct nstr_item nstr;
 165         struct natstr *natp;
 166         struct lonstr loan;
 167         natid   recipient;
 168         int     n;
 169         s_char  prompt[128];
 170
 171         if ((n = natarg(player->argp[2], "Lend to? ")) < 0)
 172                 return RET_SYN;
 173         recipient = n;
 174         if (recipient == player->cnum) {
 175                 pr("You can't loan yourself money!\n");
 176                 return RET_FAIL;
 177         }
 178         natp = getnatp(recipient);
 179         if (player->cnum && (getrejects(player->cnum,natp) & REJ_LOAN)) {
 180                 pr("%s is rejecting your loans.\n",
 181                         cname(recipient));
 182                 return RET_SYN;
 183         }
 184         natp = getnatp(player->cnum);
 185         if (natp->nat_money + 100 > MAXLOAN)
 186                 maxloan = MAXLOAN;
 187         else
 188                 maxloan = natp->nat_money - 100;
 189         if (maxloan < 0) {
 190                 pr("You don't have enough money to loan!\n");
 191                 return RET_FAIL;
 192         }
 193         sprintf(prompt, "Size of loan for country #%d? (max %d) ",
 194                 recipient, maxloan);
 195         amt = onearg(player->argp[3], prompt);
 196         if (amt <= 0)
 197                 return RET_FAIL;
 198         if (amt > MAXLOAN) {
 199                 pr("You can only loan $%d at a time.\n",MAXLOAN);
 200                 return RET_FAIL;
 201         }
 202         if (amt > maxloan) {
 203                 pr("You can't afford that much.\n");
 204                 return RET_FAIL;
 205         }
 206         dur = onearg(player->argp[4], "Duration? (days, max 7) ");
 207         if (dur <= 0)
 208                 return RET_FAIL;
 209         if (dur >7) return RET_FAIL;
 210         irate = onearg(player->argp[5], "Interest rate? (from 5 to 25%) ");
 211         if (irate >25) return RET_FAIL;
 212         if (irate < 5)
 213                 return RET_FAIL;
 214         snxtitem_all(&nstr, EF_LOAN);
 215         while (nxtitem(&nstr, (s_char *) &loan)) {
 216                 if ((loan.l_status == LS_SIGNED) && (loan.l_lonee == player->cnum) &&
 217                                                 (loan.l_loner == recipient)) {
 218                         pr("You already owe HIM money - how about repaying your loan?\n");
 219                         return RET_FAIL;
 220                 }
 221         }
 222         snxtitem_all(&nstr, EF_LOAN);
 223         while (nxtitem(&nstr, (s_char *) &loan)) {
 224                 if (loan.l_status == LS_FREE)
 225                         break;
 226         }
 227         loan.l_loner = player->cnum;
 228         loan.l_lonee = recipient;
 229         loan.l_status = LS_PROPOSED;
 230         loan.l_irate = min(irate, 127);
 231         loan.l_ldur = min(dur, 127);
 232         loan.l_amtpaid = 0;
 233         loan.l_amtdue = amt;
 234         (void) time(&loan.l_lastpay);
 235         loan.l_duedate = loan.l_ldur * SECS_PER_DAY + loan.l_lastpay;
 236         loan.l_uid = nstr.cur;
 237         if (!putloan(nstr.cur, &loan)) {
 238                 pr("Couldn't save loan; get help!\n");
 239                 return RET_SYS;
 240         }
 241         pr("You have offered loan %d\n", nstr.cur);
 242         wu(0, recipient, "Country #%d has offered you a loan (#%d)\n",
 243                 player->cnum, nstr.cur);
 244         return RET_OK;
 245 }