git.pond.sub.org Git - empserver/blob - src/lib/commands/conv.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  *  conv.c: Convert conquered populace into uw's
  29  *
  30  *  Known contributors to this file:
  31  *     Dave Pare, 1986
  32  */
  33
  34 /*
  35  * format: convert <SECTS> <NUMBER PER SECTOR>
  36  */
  37
  38 #include "misc.h"
  39 #include "player.h"
  40 #include "var.h"
  41 #include "sect.h"
  42 #include "nat.h"
  43 #include "xy.h"
  44 #include "nsc.h"
  45 #include "file.h"
  46 #include "land.h"
  47 #include "commands.h"
  48
  49 long do_conv(struct nstr_sect nstr, int uwtoconvert, int for_real);
  50
  51 int
  52 conv(void)
  53 {
  54         struct  natstr *natp;
  55         long    cash;
  56         long    cost;
  57         struct  nstr_sect nstr;
  58         int     uwtoconvert;
  59
  60         natp = getnatp(player->cnum);
  61         cash = natp->nat_money;
  62         if (!snxtsct(&nstr, player->argp[1]))
  63                 return RET_SYN;
  64         uwtoconvert = onearg(player->argp[2], "Number to convert: ");
  65         if (uwtoconvert < 0)
  66                 return RET_SYN;
  67         cost = do_conv(nstr, uwtoconvert, 0);
  68         if (chkmoney(cost, cash, player->argp[3]))
  69                 return RET_SYN;
  70         return (int)do_conv(nstr, uwtoconvert, 1);
  71 }
  72
  73 long
  74 do_conv(struct nstr_sect nstr, int uwtoconvert, int for_real)
  75 {
  76         struct sctstr sect;
  77         int newuw, totaluw, uw;
  78         int civ, mil, adj_mob, mob;
  79         double security_extra=1.0;
  80         struct lndstr land;
  81         struct nstr_item ni;
  82         long cost = 0;
  83
  84         totaluw = 0;
  85         while (nxtsct(&nstr, &sect)) {
  86                 if (!player->owner)
  87                         continue;
  88                 if (sect.sct_oldown == player->cnum)
  89                         continue;
  90                 civ = getvar(V_CIVIL, (s_char *)&sect, EF_SECTOR);
  91                 if (civ == 0)
  92                         continue;
  93                 mil = getvar(V_MILIT, (s_char *)&sect, EF_SECTOR);
  94
  95                 /*
  96                  * Military units count according to the number of
  97                  * mil in them. (i.e. attack/defense modified don't
  98                  * count.
  99                  */
 100                 snxtitem_xy(&ni, EF_LAND, sect.sct_x, sect.sct_y);
 101                 while (nxtitem(&ni, (s_char *)&land)){
 102                         mil += lnd_getmil(&land);
 103 /*                      mil += (lnd_getmil(&land) *
 104                                 ((double)land.lnd_effic/100.0));*/
 105
 106                         /* Anti-terrorist units count double */
 107                         if (lchr[(int)land.lnd_type].l_flags & L_SECURITY){
 108
 109                                 /*
 110                                  * They also increase the efficiency of
 111                                  * the conversion process by 10% each.
 112                                  * (but they use 10 mobility doing it)
 113                                  */
 114                                 security_extra += .1;
 115                                 land.lnd_mobil -= 10;
 116                                 if (for_real)
 117                                         putland(land.lnd_uid,&land);
 118                                 mil += lnd_getmil(&land);
 119 /*                              mil += (lchr[land.lnd_type].l_mil *
 120                                         ((double)land.lnd_effic/100.0));*/
 121                         }
 122                 }
 123                 /*
 124                  * Must have military control to convert captured civs.
 125                  */
 126                 if (mil * 10 < civ)
 127                         continue;
 128                 newuw = civ;
 129                 if (newuw > uwtoconvert)
 130                         newuw = uwtoconvert;
 131                 uw = getvar(V_UW, (s_char *)&sect, EF_SECTOR);
 132                 if (uw > 999)
 133                         continue;
 134                 if (newuw > 999 - uw)
 135                         newuw = 999 - uw;
 136                 if (newuw == 0)
 137                         continue;
 138                 /*
 139                  * So entire civilian populations don't disappear immediately
 140                  * into re-education camps, charge a healthy mobility cost for
 141                  * conversions.
 142                  */
 143                 mob = sect.sct_mobil * 5;
 144
 145                 /* security troops make conversion more effective */
 146                 adj_mob = ldround(((double)mob*security_extra),1);
 147
 148                 if (adj_mob < newuw)
 149                         newuw = adj_mob;
 150                 if (newuw <= 0)
 151                         continue;
 152                 if (!for_real) {
 153                         cost += newuw * 1.5;
 154                         continue;
 155                 }
 156                 player->btused += (newuw - 1) / 100 + 1;
 157                 player->dolcost += newuw * 1.5;
 158                 if (newuw < mob)
 159                         mob = newuw;
 160                 if (putvar(V_UW, newuw + uw, (s_char *)&sect, EF_SECTOR) == 0) {
 161                         pr("No room for new uw in %s\n",
 162                                 xyas(sect.sct_x, sect.sct_y, player->cnum));
 163                         continue;
 164                 }
 165                 civ -= newuw;
 166                 putvar(V_CIVIL, civ, (s_char *)&sect, EF_SECTOR);
 167                 mob = roundavg(mob * 0.2);
 168                 if (mob > sect.sct_mobil)
 169                         mob = sect.sct_mobil;
 170                 sect.sct_mobil -= (u_char)mob;
 171                 pr("%3d conquered civilians converted in %s (%d)\n",
 172                         newuw, xyas(sect.sct_x, sect.sct_y, player->cnum),
 173                         uw + newuw);
 174                 if (civ == 0) {
 175                         sect.sct_oldown = sect.sct_own;
 176                         pr("%s is now completely yours.\n",
 177                                 xyas(sect.sct_x, sect.sct_y, player->cnum));
 178                 }
 179                 putsect(&sect);
 180                 totaluw += newuw;
 181         }
 182         if (!for_real)
 183                 return cost;
 184         pr("Total civilians converted: %d\n", totaluw);
 185         pr("Paperwork at conversion places ... %d\n", player->btused);
 186         return RET_OK;
 187 }