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Import of Empire 4.2.12

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Markus Armbruster 2003-08-23 12:23:04 +00:00
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src/lib/commands/sell.c Normal file
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/*
* Empire - A multi-player, client/server Internet based war game.
* Copyright (C) 1986-2000, 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 the "LEGAL", "LICENSE", "CREDITS" and "README" files for all the
* related information and legal notices. It is expected that any future
* projects/authors will amend these files as needed.
*
* ---
*
* sell.c: Sell commodities to other nations.
*
* Known contributors to this file:
* Dave Pare, 1986
* Jeff Bailey
* Pat Loney, 1992
* Steve McClure, 1996
*/
#include "misc.h"
#include "xy.h"
#include "file.h"
#include "var.h"
#include "sect.h"
#include "item.h"
#include "nsc.h"
#include "nat.h"
#include "nuke.h"
#include "plane.h"
#include "ship.h"
#include <math.h> /* bailey@math-cs.kent.edu */
#include "commodity.h"
#include "land.h"
#include "trade.h"
#include "player.h"
#include "commands.h"
#include "optlist.h"
/*#define EF_COMM 10*/
/*
* format: sell <COMMODITY> <SECTS> <NUMBER> <PRICE>
* where NUMBER represents either the number to reach
* or, if negative, the abs number to try and get from
* each sector.
*/
int
sell(void)
{
struct sctstr sect;
struct ichrstr *ip;
struct comstr comm;
int number_set;
int number_sub;
int totalcom;
int amt;
int com;
char *p;
float price;
char cc;
time_t now;
int ii = 0;
coord x, y;
s_char buf[1024];
if (!opt_MARKET) {
pr("The market is disabled.\n");
return RET_FAIL;
}
check_market();
check_trade();
if ((ip = whatitem(player->argp[1], "Commodity you want to sell: ")) == 0)
return RET_SYN;
if (ip->i_sell == 0) {
pr("You can't sell %s\n", ip->i_name);
return RET_FAIL;
}
if (!(p = getstarg(player->argp[2], "Sector to sell from: ",buf)))
return RET_SYN;
if (!sarg_xy(p, &x, &y))
return RET_SYN;
if (!getsect(x, y, &sect))
pr("Could not access that sector.\n");
if ((sect.sct_type != SCT_HARBR && sect.sct_type != SCT_WAREH) ||
!player->owner) {
pr("That sector cannot sell goods.\n");
return RET_FAIL;
}
if(sect.sct_effic < 60){
pr("Sectors need to be >= 60%% efficient to sell goods.\n");
return RET_FAIL;
}
if (sect.sct_mobil <= 0) {
pr("Sectors need at least 1 mobility to sell goods.\n");
return RET_FAIL;
}
number_set = 0;
number_sub = 0;
if ((p = getstarg(player->argp[3], "Amount: ",buf)) == 0 || *p == 0)
return RET_SYN;
if (!check_sect_ok(&sect))
return RET_FAIL;
number_set = atoi(p);
if ((p = getstarg(player->argp[4], "Price per unit: ", buf)) == 0 ||
*p == 0)
return RET_SYN;
if (!check_sect_ok(&sect))
return RET_FAIL;
price = atof(p);
if (price <= 0.0) {
pr("No sale.\n");
return RET_FAIL;
}
if (price > 1000.0) /* Inf can cause overflow */
price = 1000.0; /* bailey@math-cs.kent.edu */
totalcom = 0;
/*
* military control necessary to sell
* goodies in occupied territory.
*/
if (sect.sct_oldown != player->cnum) {
int tot_mil=0;
struct nstr_item ni;
struct lndstr land;
snxtitem_xy(&ni, EF_LAND, sect.sct_x, sect.sct_y);
while (nxtitem(&ni, (s_char *)&land)){
if (land.lnd_own == player->cnum)
tot_mil += total_mil(&land);
}
if (((tot_mil+(getvar(V_MILIT, (char *)&sect, EF_SECTOR))) * 10)
< getvar(V_CIVIL, (char *)&sect, EF_SECTOR)) {
pr("Military control required to sell goods.\n");
return RET_FAIL;
}
}
if (((amt = getvar(ip->i_vtype, (char *)&sect,EF_SECTOR))) == 0) {
pr("You don't have any %s to sell there.\n", ip->i_name);
return RET_FAIL;
}
if (number_set > 0)
com = min(number_set, amt);
else if (number_set < 0)
com = amt + number_set;
else
com = 0;
if (com <= 0)
return RET_SYN;
totalcom += com;
amt -= com;
pr("Sold %d %s at %s (%d left)\n", com, ip->i_name,
xyas(sect.sct_x, sect.sct_y, player->cnum), amt);
putvar(ip->i_vtype, amt, (char *)&sect, EF_SECTOR);
cc = ip->i_mnem;
putsect(&sect);
if (totalcom > 0) {
for (ii = 0; getcomm(ii, &comm); ii++) {
if (comm.com_owner == 0)
break;
}
if (getcomm(ii, &comm) == 0)
ef_extend(EF_COMM, 1);
(void) time(&now);
comm.com_type = ip->i_mnem;
comm.com_owner = player->cnum;
comm.com_price = price;
comm.com_maxbidder = player->cnum;
comm.com_maxprice = price;
comm.com_markettime = now;
comm.com_amount = totalcom;
comm.com_x = 0;
comm.com_y = 0;
comm.sell_x = sect.sct_x;
comm.sell_y = sect.sct_y;
comm.com_uid = ii;
if(!putcomm(ii, &comm)) {
pr("Problems with the commodities file, call the Deity\n");
return RET_FAIL;
}
} else {
pr("No eligible %s for sale\n", ip->i_name);
return RET_FAIL;
}
return RET_OK;
}