src/lib/commands/desi.c

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/*
 *  Empire - A multi-player, client/server Internet based war game.
 *  Copyright (C) 1986-2007, 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 files README, COPYING and CREDITS in the root of the source
 *  tree for related information and legal notices.  It is expected
 *  that future projects/authors will amend these files as needed.
 *
 *  ---
 *
 *  desi.c: Redesignate sectors
 * 
 *  Known contributors to this file:
 *      Steve McClure, 1998-2000
 */

#include <config.h>

#include "commands.h"
#include "map.h"
#include "optlist.h"
#include "path.h"

static long do_desi(struct natstr *natp, char *sects, char *deschar,
                    long cash, int for_real);

int
desi(void)
{
    long cash;
    long cost;
    struct natstr *natp;

    natp = getnatp(player->cnum);
    cash = natp->nat_money;
    if (player->argp[2]) {
        cost = do_desi(natp, player->argp[1], player->argp[2], cash, 0);
        if (cost < 0)
            return (int)-cost;
        if (chkmoney(cost, cash, player->argp[3]))
            return RET_SYN;
    }
    return (int)do_desi(natp, player->argp[1], player->argp[2], cash, 1);
}

static long
do_desi(struct natstr *natp, char *sects, char *deschar, long cash,
        int for_real)
{
    int n;
    char *p;
    int breaksanct;
    int cap_x;
    int cap_y;
    int des;
    struct nstr_sect nstr;
    struct sctstr sect;
    struct sctstr check;
    char prompt[128];
    char buf[1024];
    long cost = 0;
    int changed = 0;
    int warned = 0;

    breaksanct = 0;
    if (!snxtsct(&nstr, sects)) {
        if (for_real)
            return (long)RET_SYN;
        else
            return (long)-RET_SYN;
    }
    cap_x = natp->nat_xcap;
    cap_y = natp->nat_ycap;
    while (!player->aborted && nxtsct(&nstr, &sect)) {
        if (!player->owner)
            continue;
        if (!player->god && dchr[sect.sct_type].d_cost < 0)
            continue;
        sprintf(prompt, "%s %d%% %s  desig? ",
                xyas(sect.sct_x, sect.sct_y, player->cnum),
                sect.sct_effic, dchr[sect.sct_type].d_name);
        if ((p = getstarg(deschar, prompt, buf)) == 0)
            continue;

        if (!check_sect_ok(&sect))
            continue;

        des = sct_typematch(p);
        if (des < 0 || (((des == SCT_BSPAN) || (des == SCT_BTOWER)) &&
                        !player->god)) {
            pr("No such designation\n"
               "See \"info Sector-types\" for possible designations\n");
            if (for_real)
                return (long)RET_FAIL;
            else
                return (long)-RET_FAIL;
        }
        if (!player->god) {
            if (des == SCT_WASTE) {
                if (for_real)
                    pr("Only a nuclear device (or %s) can make a %s!\n",
                       cname(0), dchr[des].d_name);
                continue;
            }
            if (dchr[des].d_cost < 0) {
                if (for_real)
                    pr("Only %s can make a %s!\n",
                       cname(0), dchr[des].d_name);
                continue;
            }
        }
        if (sect.sct_type == des && sect.sct_newtype == des)
            continue;
        if (sect.sct_type == SCT_SANCT)
            breaksanct++;
        if ((des == SCT_HARBR) || (des == SCT_BHEAD)) {
            for (n = 1; n <= 6; n++) {
                getsect(nstr.x + diroff[n][0],
                        nstr.y + diroff[n][1], &check);
                if (check.sct_type == SCT_WATER)
                    break;
                if (check.sct_type == SCT_BSPAN)
                    break;
                if (check.sct_type == SCT_BTOWER)
                    break;
            }
            if (n > 6) {
                if (for_real)
                    pr("%s does not border on water.\n",
                       xyas(nstr.x, nstr.y, player->cnum));
                if (player->god) {
                    if (for_real)
                        pr("But if it's what you want ...\n");
                } else
                    continue;
            }
        }
        if (sect.sct_type == SCT_SANCT && !player->god)
            continue;
        n = sect.sct_type;
        if ((sect.sct_newtype != des) && (sect.sct_type != des)
            && dchr[des].d_cost > 0) {
            if (for_real) {
                if (check_cost(!deschar, dchr[des].d_cost, cash, &warned,
                               player->argp[3]))
                    break;
            } else {
                cost += dchr[des].d_cost;
                continue;
            }
        }
        if (sect.sct_type != des && (sect.sct_effic < 5 || player->god)) {
            if (player->god)
                set_coastal(&sect, sect.sct_type, des);
            sect.sct_type = des;
            sect.sct_effic = 0;
            changed += map_set(player->cnum, sect.sct_x, sect.sct_y,
                               dchr[des].d_mnem, 0);
        }
        sect.sct_newtype = des;
        putsect(&sect);
        if (sect.sct_x == cap_x && sect.sct_y == cap_y
            && des != SCT_CAPIT && des != SCT_SANCT && des != SCT_MOUNT
            && for_real)
            pr("You have redesignated your capital!\n");
        if (opt_EASY_BRIDGES == 0) {    /* may cause a bridge fall */
            if (n != SCT_BHEAD)
                continue;
            bridgefall(&sect, 0);
        }
    }
    if (for_real) {
        if (changed)
            writemap(player->cnum);
        if (breaksanct)
            bsanct();
        return (long)RET_OK;
    } else {
        return cost;
    }
}

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