Markus Armbruster
95ef2b139d
(give, deliver_it): Use it instead of 9990. (load_comm_ship, load_comm_land, rese): Use it instead of 9999. (thre): Use it instead of 10000. (check_market, explore, move, pln_dropoff): Use it instead of 32767. (unload_it): Use it instead of 99999 (which couldn't possibly work, but what do you expect from the autonav code).
117 lines
3.4 KiB
C
117 lines
3.4 KiB
C
/*
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* Empire - A multi-player, client/server Internet based war game.
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* Copyright (C) 1986-2000, Dave Pare, Jeff Bailey, Thomas Ruschak,
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* Ken Stevens, Steve McClure
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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* ---
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*
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* See the "LEGAL", "LICENSE", "CREDITS" and "README" files for all the
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* related information and legal notices. It is expected that any future
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* projects/authors will amend these files as needed.
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*
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* ---
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*
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* deliver.c: Deliver commodities to neighboring sector
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*
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* Known contributors to this file:
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*
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*/
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#include "misc.h"
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#include "var.h"
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#include "sect.h"
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#include "item.h"
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#include "path.h"
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#include "file.h"
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#include "xy.h"
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#include "update.h"
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#include "subs.h"
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#include "common.h"
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int
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deliver(register struct sctstr *from, struct ichrstr *ip, int dir,
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int thresh, int amt_src, int plague)
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{
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register struct sctstr *to;
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int vtype; /* item vartype */
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int pack_src;
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int amt_moved;
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int amt_dst;
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int mobility;
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float mcost;
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struct dchrstr *dp;
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int n;
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if (dir <= 0 || dir > DIR_UL)
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return 0;
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if (amt_src <= 0)
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return 0;
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if ((amt_moved = amt_src - thresh) <= 0)
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return 0;
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/*
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* make sure delivery looks ok. Check where its going,
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* where its coming from, and see if there is more than
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* the threshold amount
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*/
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if (!military_control(from))
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return 0;
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to = getsectp(from->sct_x + diroff[dir][0],
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from->sct_y + diroff[dir][1]);
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if (to->sct_own != from->sct_own) {
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wu(0, from->sct_own, "%s delivery walkout at %s\n",
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ip->i_name, ownxy(from));
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return 0;
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}
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dp = &dchr[from->sct_type];
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vtype = ip->i_vtype;
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pack_src = ip->i_pkg[dp->d_pkg];
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mobility = from->sct_mobil / 2;
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if (vtype == V_CIVIL && from->sct_own != from->sct_oldown) {
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wu(0, from->sct_own,
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"The conquered populace in %s refuses to relocate!\n",
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ownxy(from));
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return 0;
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}
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/*
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* disallow delivery into prohibited sectors.
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* calculate unit movement cost; decrease amount if
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* there isn't enough mobility.
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*/
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mcost = sector_mcost(to, MOB_ROAD) * ip->i_lbs / pack_src;
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mcost /= 4.0;
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if (mobility < mcost * amt_moved) {
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/* XXX can mcost be == 0? */
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amt_moved = (int)(mobility / mcost);
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if (amt_moved <= 0)
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return 0;
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}
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amt_dst = to->sct_item[vtype];
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if (amt_moved > ITEM_MAX - amt_dst) {
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/* delivery backlog */
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amt_moved = ITEM_MAX - amt_dst;
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}
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to->sct_item[vtype] = amt_moved + amt_dst;
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/* deliver the plague too! */
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if (plague == PLG_INFECT && to->sct_pstage == PLG_HEALTHY)
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to->sct_pstage = PLG_EXPOSED;
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n = from->sct_mobil - (int)(mcost * amt_moved);
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if (n < 0)
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n = 0;
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from->sct_mobil = n;
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return amt_moved;
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}
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