src/lib/commands/budg.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.
 *
 *  ---
 *
 *  budg.c: Calculate production levels, prioritize
 * 
 *  Known contributors to this file:
 *     Thomas Ruschak, 1992
 *     Ville Virrankoski, 1995
 *     Steve McClure, 1997-2000
 *     Markus Armbruster, 2004-2006
 */

#include <config.h>

#include <ctype.h>
#include "budg.h"
#include "commands.h"
#include "item.h"
#include "land.h"
#include "optlist.h"
#include "plane.h"
#include "product.h"
#include "ship.h"

static void calc_all(long (*p_sect)[2], int *taxes, int *Ncivs,
                     int *Nuws, int *bars, int *Nbars, int *mil,
                     int *ships, int *sbuild, int *nsbuild, int *smaint,
                     int *units, int *lbuild, int *nlbuild, int *lmaint,
                     int *planes, int *pbuild, int *npbuild, int *pmaint);
static char *dotsprintf(char *buf, char *format, int data);

int
budg(void)
{
    int i;
    long p_sect[SCT_TYPE_MAX+2][2];
    int taxes, Ncivs, Nuws, bars, Nbars, mil;
    int ships, sbuild, nsbuild, smaint;
    int units, lbuild, nlbuild, lmaint;
    int planes, pbuild, npbuild, pmaint;
    int n, etu;
    int income, expenses;
    struct natstr *np;
    char buf[1024];
    char in[80];

    etu = etu_per_update;

    np = getnatp(player->cnum);

    player->simulation = 1;
    calc_all(p_sect,
             &taxes, &Ncivs, &Nuws, &bars, &Nbars, &mil,
             &ships, &sbuild, &nsbuild, &smaint,
             &units, &lbuild, &nlbuild, &lmaint,
             &planes, &pbuild, &npbuild, &pmaint);
    player->simulation = 0;

    income = taxes + bars;
    expenses = 0;
    pr("Sector Type\t\t\tProduction\t\t\t    Cost\n");
    for (i = 0; i <= SCT_TYPE_MAX; i++) {
        if (!p_sect[i][1] || i == SCT_CAPIT)
            continue;
        pr("%-17s\t\t", dchr[i].d_name);
        if (i == SCT_ENLIST)
            pr("%ld mil    \t", p_sect[i][0]);
        else if (dchr[i].d_prd >= 0)
            pr("%ld %-7s\t", p_sect[i][0], pchr[dchr[i].d_prd].p_sname);
        else
            pr("\t\t");
        pr("\t\t%8ld\n", p_sect[i][1]);
        expenses += p_sect[i][1];
    }

    if (sbuild) {
        sprintf(buf, "%d ship%s", nsbuild, splur(nsbuild));
        pr("Ship building\t\t\t%-16s\t\t%8d\n", buf, -sbuild);
        expenses += -sbuild;
    }

    if (smaint) {
        sprintf(buf, "%d ship%s", ships, splur(ships));
        pr("Ship maintenance\t\t%-16s\t\t%8d\n", buf, -smaint);
        expenses += -smaint;
    }

    if (pbuild) {
        sprintf(buf, "%d plane%s", npbuild, splur(npbuild));
        pr("Plane building\t\t\t%-16s\t\t%8d\n", buf, -pbuild);
        expenses += -pbuild;
    }

    if (pmaint) {
        sprintf(buf, "%d plane%s", planes, splur(planes));
        pr("Plane maintenance\t\t%-16s\t\t%8d\n", buf, -pmaint);
        expenses += -pmaint;
    }
    if (lbuild) {
        sprintf(buf, "%d unit%s", nlbuild, splur(nlbuild));
        pr("Unit building\t\t\t%-16s\t\t%8d\n", buf, -lbuild);
        expenses += -lbuild;
    }

    if (lmaint) {
        sprintf(buf, "%d unit%s", units, splur(units));
        pr("Unit maintenance\t\t%-16s\t\t%8d\n", buf, -lmaint);
        expenses += -lmaint;
    }

    if (p_sect[SCT_EFFIC][1]) {
        pr("Sector building\t\t\t\t%8ld sct(s)\t\t%8ld\n",
           p_sect[SCT_EFFIC][0], p_sect[SCT_EFFIC][1]);
        expenses += p_sect[SCT_EFFIC][1];
    }
    if (mil) {
        n = (mil - np->nat_reserve * money_res * etu) / (etu * money_mil);
        sprintf(in, "%d mil, %d res", n, (int)np->nat_reserve);
        pr("Military payroll\t\t%-32s%8d\n", in, -mil);
        expenses -= mil;
    }
    if (p_sect[SCT_CAPIT][0]) {
        pr("%c%s maintenance\t\t",
           toupper(dchr[SCT_CAPIT].d_name[0]),
           dchr[SCT_CAPIT].d_name + 1);
        n = p_sect[SCT_CAPIT][0];
        sprintf(in, "%d %s", n, dchr[SCT_CAPIT].d_name);
        plurize(in, sizeof(in), n);
        pr("%-32s%8ld\n", in, p_sect[SCT_CAPIT][1]);
        expenses += p_sect[SCT_CAPIT][1];
    }
    pr("Total expenses%s\n", dotsprintf(buf, "%58d", expenses));
    if (taxes) {
        sprintf(in, "%d civ%s, %d uw%s",
                Ncivs, splur(Ncivs), Nuws, splur(Nuws));
        pr("Income from taxes\t\t%-32s%+8d\n", in, taxes);
    }
    if (bars) {
        sprintf(in, "%d bar%s", Nbars, splur(Nbars));
        pr("Income from bars\t\t%-32s%+8d\n", in, bars);
    }
    pr("Total income%s\n", dotsprintf(buf, "%+60d", income));
    pr("Balance forward\t\t\t\t\t\t      %10ld\n", np->nat_money);
    pr("Estimated delta\t\t\t\t\t\t      %+10d\n", income - expenses);
    pr("Estimated new treasury%s\n",
       dotsprintf(buf, "%50d", np->nat_money + income - expenses));
    if (np->nat_money + income - expenses < 0 && !player->god) {
        pr("After processsing sectors, you will be broke!\n");
        pr("Sectors will not produce, distribute, or deliver!\n\n");
    }

    return RET_OK;
}

static void
calc_all(long p_sect[][2],
         int *taxes, int *Ncivs, int *Nuws, int *bars, int *Nbars, int *mil,
         int *ships, int *sbuild, int *nsbuild, int *smaint,
         int *units, int *lbuild, int *nlbuild, int *lmaint,
         int *planes, int *pbuild, int *npbuild, int *pmaint)
{
    struct natstr *np;
    struct bp *bp;
    long pop = 0;
    int n, civ_tax, uw_tax, mil_pay;
    struct sctstr *sp;
    int etu = etu_per_update;

    memset(p_sect, 0, sizeof(**p_sect) * (SCT_TYPE_MAX+2) * 2);
    *taxes = *Ncivs = *Nuws = *bars = *Nbars = *mil = 0;
    *ships = *sbuild = *nsbuild = *smaint = 0;
    *units = *lbuild = *nlbuild = *lmaint = 0;
    *planes = *pbuild = *npbuild = *pmaint = 0;
    
    np = getnatp(player->cnum);
    bp = bp_alloc();
    for (n = 0; NULL != (sp = getsectid(n)); n++) {
        bp_set_from_sect(bp, sp);
        if (sp->sct_own == player->cnum) {
            sp->sct_updated = 0;
            tax(sp, np, etu, &pop, &civ_tax, &uw_tax, &mil_pay);
            *Ncivs += sp->sct_item[I_CIVIL];
            *Nuws += sp->sct_item[I_UW];
            *taxes += civ_tax + uw_tax;
            *mil += mil_pay;
            if (sp->sct_type == SCT_BANK) {
                *bars += bank_income(sp, etu);
                *Nbars += sp->sct_item[I_BAR];
            }
        }
    }
    tpops[player->cnum] = pop;
    *mil += (int)(np->nat_reserve * money_res * etu);

    *mil += upd_slmilcosts(np->nat_cnum, etu);

    /* Maintain ships */
    sea_money[player->cnum] = 0;
    *ships = prod_ship(etu, player->cnum, bp, 0);
    *smaint = sea_money[player->cnum];

    /* Maintain planes */
    air_money[player->cnum] = 0;
    *planes = prod_plane(etu, player->cnum, bp, 0);
    *pmaint = air_money[player->cnum];

    /* Maintain land units */
    lnd_money[player->cnum] = 0;
    *units = prod_land(etu, player->cnum, bp, 0);
    *lmaint = lnd_money[player->cnum];

    /* Produce */
    produce_sect(player->cnum, etu, bp, p_sect);

    /* Build ships */
    sea_money[player->cnum] = 0;
    *nsbuild = prod_ship(etu, player->cnum, bp, 1);
    *sbuild = sea_money[player->cnum];
    sea_money[player->cnum] = 0;

    /* Build planes */
    air_money[player->cnum] = 0;
    *npbuild = prod_plane(etu, player->cnum, bp, 1);
    *pbuild = air_money[player->cnum];
    air_money[player->cnum] = 0;

    /* Build land units */
    lnd_money[player->cnum] = 0;
    *nlbuild = prod_land(etu, player->cnum, bp, 1);
    *lbuild = lnd_money[player->cnum];
    lnd_money[player->cnum] = 0;

    free(bp);
}

static char *
dotsprintf(char *buf, char *format, int data)
{
    sprintf(buf, format, data);
    return memset(buf, '.', strspn(buf, " "));
}

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