src/lib/commands/strv.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.
 *
 *  ---
 *
 *  star.c: Do a starvation report
 * 
 *  Known contributors to this file:
 *     
 */

#include <config.h>

#include <math.h>
#include "commands.h"
#include "item.h"
#include "land.h"
#include "optlist.h"
#include "path.h"
#include "ship.h"

static void starv_sects(char *range);
static void starv_ships(char *range);
static void starv_units(char *range);
static void sect_hdr(void);
static void ship_hdr(void);
static void unit_hdr(void);

int
starve(void)
{
    int do_sects = 0;
    int do_ships = 0;
    int do_units = 0;
    char *range;

    if (opt_NOFOOD) {           /* no food - no work! */
        pr("No food is required in this game\n");
        return RET_OK;
    }

    range = "*";
    if (!player->argp[1]) {
        do_sects = do_ships = do_units = 1;
    } else if (*(player->argp[1]) == 's') {
        do_ships = 1;
        if (player->argp[2])
            range = player->argp[2];
    } else if (*(player->argp[1]) == 'l') {
        do_units = 1;
        if (player->argp[2])
            range = player->argp[2];
    } else {
        do_sects = 1;
        range = player->argp[1];
    }
    player->simulation = 1;
    prdate();
    if (do_sects)
        starv_sects(range);
    if (do_ships)
        starv_ships(range);
    if (do_units)
        starv_units(range);
    player->simulation = 0;
    return RET_OK;
}

static void
starv_people(short *vec, int victims)
{
    pr(" will starve %d people. %.0f more food needed\n", victims,
       ceil(food_needed(vec, etu_per_update) - vec[I_FOOD]));
}

static void
starv_sects(char *range)
{
    struct nstr_sect nstr;
    struct sctstr sect;
    int nsect = 0;
    int s, save;

    if (!snxtsct(&nstr, range))
        return;
    while (nxtsct(&nstr, &sect)) {
        if (!player->owner)
            continue;
        if (sect.sct_type == SCT_SANCT)
            continue;

        /*
         * Check for starvation.  Suppress complaints about tiny
         * population without food by adding 1f just for the check.
         * That's okay because growfood() will grow at least that much
         * anyway.
         */
        save = sect.sct_item[I_FOOD];
        if (sect.sct_item[I_FOOD] == 0)
            sect.sct_item[I_FOOD] = 1;
        s = famine_victims(sect.sct_item, etu_per_update);
        sect.sct_item[I_FOOD] = save;
        if (s == 0)
            continue;

        if (nsect++ == 0)
            sect_hdr();
        if (player->god)
            pr("%3d ", sect.sct_own);
        prxy("%4d,%-4d", nstr.x, nstr.y, player->cnum);
        pr(" %c", dchr[sect.sct_type].d_mnem);
        pr(" %c", sect.sct_own != sect.sct_oldown ? '*' : ' ');
        if (sect.sct_newtype != sect.sct_type)
            pr("%c", dchr[sect.sct_newtype].d_mnem);
        else
            pr(" ");
        pr("%4d%%", sect.sct_effic);
        starv_people(sect.sct_item, s);
    }
    if (nsect == 0) {
        if (player->argp[1])
            pr("%s: No sector(s)\n", player->argp[1]);
        else
            pr("%s: No sector(s)\n", "");
        return;
    } else
        pr("%d sector%s\n", nsect, splur(nsect));
    return;
}

static void
sect_hdr(void)
{
    if (player->god)
        pr("    ");
    pr("Starvation               \n");
    if (player->god)
        pr("own ");
    pr("  sect         eff ");
    pr("\n");
}

static void
starv_ships(char *range)
{
    struct nstr_item ni;
    struct shpstr ship;
    int nship = 0;
    int s;

    if (!snxtitem(&ni, EF_SHIP, range))
        return;

    while (nxtitem(&ni, &ship)) {
        if (!player->owner || !ship.shp_own)
            continue;

        s = famine_victims(ship.shp_item, etu_per_update);
        if (s == 0)
            continue;
        if (nship++ == 0)
            ship_hdr();
        if (player->god)
            pr("%3d ", ship.shp_own);
        pr("%5d ", ship.shp_uid);
        pr("%-16.16s ", mchr[(int)ship.shp_type].m_name);
        starv_people(ship.shp_item, s);
    }
    if (nship == 0) {
        if (range)
            pr("%s: No ship(s)\n", range);
        else
            pr("%s: No ship(s)\n", "");
        return;
    } else
        pr("%d ship%s\n", nship, splur(nship));
    return;
}

static void
ship_hdr(void)
{
    if (player->god)
        pr("    ");
    pr("Starvation               \n");
    if (player->god)
        pr("own ");
    pr(" shp#     ship type       \n");
}

static void
starv_units(char *range)
{
    struct nstr_item ni;
    struct lndstr land;
    int nunit = 0;
    int s;

    if (!snxtitem(&ni, EF_LAND, range))
        return;

    while (nxtitem(&ni, &land)) {
        if (!player->owner || !land.lnd_own)
            continue;

        s = famine_victims(land.lnd_item, etu_per_update);
        if (s == 0)
            continue;
        if (nunit++ == 0)
            unit_hdr();
        if (player->god)
            pr("%3d ", land.lnd_own);
        pr("%5d ", land.lnd_uid);
        pr("%-16.16s ", lchr[(int)land.lnd_type].l_name);
        starv_people(land.lnd_item, s);
    }
    if (nunit == 0) {
        if (range)
            pr("%s: No unit(s)\n", range);
        else
            pr("%s: No unit(s)\n", "");
        return;
    } else
        pr("%d unit%s\n", nunit, splur(nunit));
    return;
}

static void
unit_hdr(void)
{
    if (player->god)
        pr("    ");
    pr("Starvation               \n");
    if (player->god)
        pr("own ");
    pr(" lnd#     unit type       \n");
}

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