Markus Armbruster
3e15a8e226
Planes and land units on ships are sold along with the ship, but trade showed them only when SHOWPLANE was enabled. Show them always. Planes on land units are not sold along with the land unit, but trade showed them when SHOWPLANE was enabled. Don't.
239 lines
6.3 KiB
C
239 lines
6.3 KiB
C
/*
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* Empire - A multi-player, client/server Internet based war game.
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* Copyright (C) 1986-2008, 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 files README, COPYING and CREDITS in the root of the source
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* tree for related information and legal notices. It is expected
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* that future projects/authors will amend these files as needed.
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*
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* ---
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*
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* trdsub.c: Trade helper functions
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*
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* Known contributors to this file:
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* St Phil, 1989
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* Pat Loney, 1992
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* Steve McClure, 1996
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*/
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#include <config.h>
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#include "empobj.h"
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#include "file.h"
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#include "item.h"
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#include "land.h"
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#include "loan.h"
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#include "misc.h"
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#include "nat.h"
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#include "nsc.h"
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#include "nuke.h"
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#include "optlist.h"
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#include "plane.h"
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#include "player.h"
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#include "prototypes.h"
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#include "sect.h"
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#include "ship.h"
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#include "trade.h"
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#include "xy.h"
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int
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trade_check_ok(struct trdstr *tp, union empobj_storage *tgp)
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{
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return check_trade_ok(tp) && trade_check_item_ok(tgp);
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}
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int
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trade_check_item_ok(union empobj_storage *tgp)
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{
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if (tgp->gen.ef_type == EF_LAND)
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return check_land_ok(&tgp->land);
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if (tgp->gen.ef_type == EF_PLANE)
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return check_plane_ok(&tgp->plane);
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if (tgp->gen.ef_type == EF_SHIP)
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return check_ship_ok(&tgp->ship);
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if (tgp->gen.ef_type == EF_NUKE)
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return check_nuke_ok(&tgp->nuke);
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CANT_REACH();
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pr("Trade lot went bad!\n");
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return 0;
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}
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char *
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trade_nameof(struct trdstr *tp, union empobj_storage *tgp)
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{
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switch (tp->trd_type) {
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case EF_NUKE:
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return nchr[(int)tgp->nuke.nuk_type].n_name;
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case EF_PLANE:
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return plchr[(int)tgp->plane.pln_type].pl_name;
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case EF_SHIP:
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return mchr[(int)tgp->ship.shp_type].m_name;
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case EF_LAND:
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return lchr[(int)tgp->land.lnd_type].l_name;
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}
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return "Bad trade type, get help";
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}
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/*
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* Describe an item up for sale. "tgp" is a union containing
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* the details of the generic item.
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* Return 1 on success, 0 on error
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*/
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int
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trade_desc(struct trdstr *tp, union empobj_storage *tgp)
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{
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i_type it;
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struct sctstr sect;
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struct nukstr *np;
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struct shpstr *sp;
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struct plnstr *pp;
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struct lndstr *lp;
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struct nstr_item ni;
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struct plnstr plane;
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struct lndstr land;
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struct nukstr nuke;
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switch (tp->trd_type) {
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case EF_NUKE:
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np = &tgp->nuke;
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tp->trd_owner = np->nuk_own;
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pr("(%3d) tech %d %d%% %s #%d",
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tp->trd_owner, np->nuk_tech, np->nuk_effic,
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nchr[(int)np->nuk_type].n_name, tp->trd_unitid);
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break;
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case EF_SHIP:
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sp = &tgp->ship;
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tp->trd_owner = sp->shp_own;
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pr("(%3d) tech %d %d%% %s [",
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tp->trd_owner, sp->shp_tech, sp->shp_effic, prship(sp));
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for (it = I_NONE + 1; it <= I_MAX; ++it) {
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if (sp->shp_item[it])
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pr("%c:%d ", ichr[it].i_mnem, sp->shp_item[it]);
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}
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pr("] #%d", tp->trd_unitid);
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snxtitem_cargo(&ni, EF_PLANE, EF_SHIP, sp->shp_uid);
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while (nxtitem(&ni, &plane)) {
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pr("\n\t\t\t\t tech %3d %3d%% %s #%d",
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plane.pln_tech,
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plane.pln_effic,
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plchr[(int)plane.pln_type].pl_name, plane.pln_uid);
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if (getnuke(nuk_on_plane(&plane), &nuke))
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pr("(%s)", nchr[nuke.nuk_type].n_name);
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}
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snxtitem_cargo(&ni, EF_LAND, EF_SHIP, sp->shp_uid);
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while (nxtitem(&ni, &land)) {
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pr("\n\t\t\t\t tech %3d %3d%% %s #%d",
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land.lnd_tech,
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land.lnd_effic,
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lchr[(int)land.lnd_type].l_name, land.lnd_uid);
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if (pln_first_on_land(&land) >= 0) {
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snxtitem_cargo(&ni, EF_PLANE, EF_LAND, land.lnd_uid);
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while (nxtitem(&ni, &plane)) {
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pr("\n\t\t\t\t tech %3d %3d%% %s #%d",
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plane.pln_tech,
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plane.pln_effic,
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plchr[(int)plane.pln_type].pl_name,
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plane.pln_uid);
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if (getnuke(nuk_on_plane(&plane), &nuke))
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pr("(%s)", nchr[nuke.nuk_type].n_name);
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}
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}
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}
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getsect(sp->shp_x, sp->shp_y, §);
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if (sect.sct_type != SCT_WATER)
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pr(" in a %s %s",
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cname(sect.sct_own), dchr[sect.sct_type].d_name);
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else
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pr(" at sea");
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break;
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case EF_LAND:
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lp = &tgp->land;
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tp->trd_owner = lp->lnd_own;
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pr("(%3d) tech %d %d%% %s [",
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tp->trd_owner,
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lp->lnd_tech, lp->lnd_effic, lchr[(int)lp->lnd_type].l_name);
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for (it = I_NONE + 1; it <= I_MAX; ++it) {
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if (lp->lnd_item[it])
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pr("%c:%d ", ichr[it].i_mnem, lp->lnd_item[it]);
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}
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pr("] #%d", tp->trd_unitid);
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break;
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case EF_PLANE:
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pp = &tgp->plane;
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tp->trd_owner = pp->pln_own;
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pr("(%3d) tech %d %d%% %s #%d",
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tp->trd_owner,
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pp->pln_tech,
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pp->pln_effic,
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plchr[(int)pp->pln_type].pl_name, tp->trd_unitid);
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if (getnuke(nuk_on_plane(pp), &nuke))
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pr("(%s)", nchr[nuke.nuk_type].n_name);
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break;
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default:
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pr("flaky unit type %d", tp->trd_type);
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break;
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}
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return 1;
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}
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int
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trade_getitem(struct trdstr *tp, union empobj_storage *tgp)
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{
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if (!ef_read(tp->trd_type, tp->trd_unitid, tgp))
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return 0;
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return 1;
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}
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/*
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* Return amount due for LOAN at time PAYTIME.
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*/
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double
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loan_owed(struct lonstr *loan, time_t paytime)
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{
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time_t rtime; /* regular interest time */
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time_t xtime; /* double interest time */
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double rate;
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int dur;
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/*
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* Split interval paytime - l_lastpay into regular (up to
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* l_duedate) and extended (beyond l_duedate) time.
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*/
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rtime = loan->l_duedate - loan->l_lastpay;
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xtime = paytime - loan->l_duedate;
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if (rtime < 0) {
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xtime += rtime;
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rtime = 0;
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}
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if (xtime < 0) {
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rtime += xtime;
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xtime = 0;
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}
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if (CANT_HAPPEN(rtime < 0))
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rtime = 0;
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dur = loan->l_ldur;
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if (CANT_HAPPEN(dur <= 0))
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dur = 1;
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rate = loan->l_irate / 100.0 / (dur * SECS_PER_DAY);
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return loan->l_amtdue * (1.0 + (rtime + xtime * 2) * rate);
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}
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