/*
* Empire - A multi-player, client/server Internet based war game.
- * Copyright (C) 1986-2000, Dave Pare, Jeff Bailey, Thomas Ruschak,
- * Ken Stevens, Steve McClure
+ * Copyright (C) 1986-2015, Dave Pare, Jeff Bailey, Thomas Ruschak,
+ * Ken Stevens, Steve McClure, Markus Armbruster
*
- * This program is free software; you can redistribute it and/or modify
+ * Empire 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
+ * the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* 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
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* ---
*
- * 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.
+ * 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.
*
* ---
*
* trdsub.c: Trade helper functions
- *
+ *
* Known contributors to this file:
* St Phil, 1989
* Pat Loney, 1992
* Steve McClure, 1996
*/
-#include "misc.h"
-#include "player.h"
-#include "var.h"
-#include "sect.h"
-#include "nat.h"
+#include <config.h>
+
+#include "empobj.h"
+#include "file.h"
#include "item.h"
-#include "ship.h"
#include "land.h"
+#include "loan.h"
+#include "misc.h"
+#include "nat.h"
+#include "nsc.h"
#include "nuke.h"
#include "plane.h"
+#include "prototypes.h"
+#include "sect.h"
+#include "ship.h"
#include "trade.h"
+#include "unit.h"
#include "xy.h"
-#include "nsc.h"
-#include "file.h"
-#include "loan.h"
-#include "prototypes.h"
-#include "optlist.h"
int
-trade_check_ok(int lot, struct trdstr *tp, union trdgenstr *tgp)
+trade_check_ok(struct trdstr *tp, struct empobj *tgp)
{
- union trdgenstr check;
- struct trdstr trade;
- int result = 0;
-
- trade_getitem(tp, &check);
- if (tp->trd_type == EF_LAND)
- result = memcmp(&(check.lnd), &(tgp->lnd), sizeof(struct lndstr));
- else if (tp->trd_type == EF_PLANE)
- result = memcmp(&(check.pln), &(tgp->pln), sizeof(struct plnstr));
- else if (tp->trd_type == EF_SHIP)
- result = memcmp(&(check.shp), &(tgp->shp), sizeof(struct shpstr));
- else
- result = memcmp(&(check.nuk), &(tgp->nuk), sizeof(struct nukstr));
- if (result) {
- pr("That item has changed!\n");
- return 0;
- }
- gettrade(lot, &trade);
- if (memcmp((s_char *)&trade, (s_char *)tp, sizeof(struct trdstr))) {
- pr("That item has changed!\n");
- return 0;
- }
- return 1;
+ return check_trade_ok(tp) && check_obj_ok(tgp);
}
-s_char *
-trade_nameof(struct trdstr *tp, union trdgenstr *tgp)
+char *
+trade_nameof(struct trdstr *tp, struct empobj *tgp)
{
- switch (tp->trd_type) {
- case EF_NUKE:
- return "nuclear stockpile";
- case EF_PLANE:
- return plchr[(int)tgp->pln.pln_type].pl_name;
- case EF_SHIP:
- return mchr[(int)tgp->shp.shp_type].m_name;
- case EF_LAND:
- return lchr[(int)tgp->lnd.lnd_type].l_name;
- }
- return "Bad trade type, get help";
+ switch (tp->trd_type) {
+ case EF_NUKE:
+ return nchr[tgp->type].n_name;
+ case EF_PLANE:
+ return plchr[tgp->type].pl_name;
+ case EF_SHIP:
+ return mchr[tgp->type].m_name;
+ case EF_LAND:
+ return lchr[tgp->type].l_name;
+ }
+ return "Bad trade type, get help";
}
/*
* Return 1 on success, 0 on error
*/
int
-trade_desc(struct trdstr *tp, union trdgenstr *tgp)
+trade_desc(struct empobj *tgp)
{
- int i;
- float price;
- struct sctstr sect;
- struct nukstr *np;
- struct shpstr *sp;
- struct plnstr *pp;
- struct lndstr *lp;
- struct natstr *natp;
- int needcomma;
- struct nstr_item ni;
- struct plnstr plane;
- struct lndstr land;
+ i_type it;
+ struct sctstr sect;
+ struct nukstr *np;
+ struct shpstr *sp;
+ struct plnstr *pp;
+ struct lndstr *lp;
+ struct nstr_item ni;
+ struct plnstr plane;
+ struct lndstr land;
+ struct nukstr nuke;
- price = multread(tp->trd_owner, player->cnum) * tp->trd_price;
- switch (tp->trd_type) {
- case EF_NUKE:
- np = &tgp->nuk;
- if (!getsect(np->nuk_x, np->nuk_y, §))
- return 0;
- tp->trd_owner = sect.sct_own;
- natp = getnatp(tp->trd_owner);
- pr("(%3d) ", sect.sct_own);
- needcomma = 0;
- for (i = 0; i < N_MAXNUKE; i++) {
- if (np->nuk_types[i]) {
- if (needcomma)
- pr(",");
- pr("%dx%s", np->nuk_types[i], nchr[i].n_name);
- needcomma = 1;
- }
- }
- break;
- case EF_SHIP:
- sp = &tgp->shp;
- tp->trd_owner = sp->shp_own;
- pr("(%3d) tech %d %d%% %s [",
- tp->trd_owner,
- sp->shp_tech,
- sp->shp_effic,
- prship(sp));
+ switch (tgp->ef_type) {
+ case EF_NUKE:
+ np = (struct nukstr *)tgp;
+ pr("(%3d) tech %d %d%% %s #%d",
+ np->nuk_own, np->nuk_tech, np->nuk_effic,
+ nchr[(int)np->nuk_type].n_name, np->nuk_uid);
+ break;
+ case EF_SHIP:
+ sp = (struct shpstr *)tgp;
+ pr("(%3d) tech %d %d%% %s [",
+ sp->shp_own, sp->shp_tech, sp->shp_effic, prship(sp));
- for (i = 0; i < sp->shp_nv; i++) {
- pr("%c:%d ",
- ichr[sp->shp_vtype[i] & ~VT_TYPE].i_mnem,
- sp->shp_vamt[i]);
- }
- pr("] #%d", tp->trd_unitid);
- if (opt_SHOWPLANE) {
- snxtitem_all(&ni, EF_PLANE);
- while (nxtitem(&ni, (s_char *)&plane))
- {
- if (plane.pln_ship == sp->shp_uid &&
- plane.pln_own != 0)
- {
- pr("\n\t\t\t\t tech %3d %3d%% %s #%d",
- plane.pln_tech,
- plane.pln_effic,
- plchr[(int)plane.pln_type].pl_name,
- plane.pln_uid);
- if (plane.pln_nuketype != (s_char)-1)
- {
- pr("(%s)",nchr[(int)plane.pln_nuketype].n_name);
- }
- }
- }
- snxtitem_all(&ni, EF_LAND);
- while (nxtitem(&ni, (s_char *)&land))
- {
- if (land.lnd_ship == sp->shp_uid &&
- land.lnd_own != 0)
- {
- pr("\n\t\t\t\t tech %3d %3d%% %s #%d",
- land.lnd_tech,
- land.lnd_effic,
- lchr[(int)land.lnd_type].l_name,
- land.lnd_uid);
- if (land.lnd_nxlight)
- {
- snxtitem_all(&ni, EF_PLANE);
- while (nxtitem(&ni, (s_char *)&plane))
- {
- if (plane.pln_land == land.lnd_uid)
- {
- pr("\n\t\t\t\t tech %3d %3d%% %s #%d",
- plane.pln_tech,
- plane.pln_effic,
- plchr[(int)plane.pln_type].pl_name,
- plane.pln_uid);
- if (plane.pln_nuketype != (s_char)-1)
- {
- pr("(%s)",
- nchr[(int)plane.pln_nuketype].n_name);
- }
- }
- }
- }
- }
- }
- }
- getsect(sp->shp_x, sp->shp_y, §);
- if (sect.sct_type != SCT_WATER)
- pr(" in a %s %s", cname(sect.sct_own),
- dchr[sect.sct_type].d_name);
- else
- pr(" at sea");
- break;
- case EF_LAND:
- lp = &tgp->lnd;
- tp->trd_owner = lp->lnd_own;
- pr("(%3d) tech %d %d%% %s [",
- tp->trd_owner,
- lp->lnd_tech,
- lp->lnd_effic,
- lchr[(int)lp->lnd_type].l_name);
- for (i = 0; i < lp->lnd_nv; i++) {
- pr("%c:%d ",
- ichr[lp->lnd_vtype[i] & ~VT_TYPE].i_mnem,
- lp->lnd_vamt[i]);
- }
- pr("] #%d", tp->trd_unitid);
- if (opt_SHOWPLANE) {
- snxtitem_all(&ni, EF_PLANE);
- while (nxtitem(&ni, (s_char *)&plane))
- {
- if (plane.pln_land == lp->lnd_uid &&
- plane.pln_own != 0)
- {
- pr("\n\t\t\t\t tech %3d %3d%% %s #%d",
- plane.pln_tech,
- plane.pln_effic,
- plchr[(int)plane.pln_type].pl_name,
- plane.pln_uid);
- if (plane.pln_nuketype != (s_char)-1)
- {
- pr("(%s)",
- nchr[(int)plane.pln_nuketype].n_name);
- }
- }
- }
- }
- getsect(lp->lnd_x, lp->lnd_y, §);
- break;
- case EF_PLANE:
- pp = &tgp->pln;
- tp->trd_owner = pp->pln_own;
- pr("(%3d) tech %d %d%% %s #%d",
- tp->trd_owner,
- pp->pln_tech,
- pp->pln_effic,
- plchr[(int)pp->pln_type].pl_name,
- tp->trd_unitid);
- if (pp->pln_nuketype != (s_char)-1) {
- pr("(%s)", nchr[(int)pp->pln_nuketype].n_name);
+ for (it = I_NONE + 1; it <= I_MAX; ++it) {
+ if (sp->shp_item[it])
+ pr("%c:%d ", ichr[it].i_mnem, sp->shp_item[it]);
+ }
+ pr("] #%d", sp->shp_uid);
+ snxtitem_cargo(&ni, EF_PLANE, EF_SHIP, sp->shp_uid);
+ while (nxtitem(&ni, &plane)) {
+ pr("\n\t\t\t\t tech %3d %3d%% %s #%d",
+ plane.pln_tech,
+ plane.pln_effic,
+ plchr[(int)plane.pln_type].pl_name, plane.pln_uid);
+ if (getnuke(nuk_on_plane(&plane), &nuke))
+ pr("(%s)", nchr[nuke.nuk_type].n_name);
+ }
+ snxtitem_cargo(&ni, EF_LAND, EF_SHIP, sp->shp_uid);
+ while (nxtitem(&ni, &land)) {
+ pr("\n\t\t\t\t tech %3d %3d%% %s #%d",
+ land.lnd_tech,
+ land.lnd_effic,
+ lchr[(int)land.lnd_type].l_name, land.lnd_uid);
+ if (pln_first_on_land(&land) >= 0) {
+ snxtitem_cargo(&ni, EF_PLANE, EF_LAND, land.lnd_uid);
+ while (nxtitem(&ni, &plane)) {
+ pr("\n\t\t\t\t tech %3d %3d%% %s #%d",
+ plane.pln_tech,
+ plane.pln_effic,
+ plchr[(int)plane.pln_type].pl_name,
+ plane.pln_uid);
+ if (getnuke(nuk_on_plane(&plane), &nuke))
+ pr("(%s)", nchr[nuke.nuk_type].n_name);
}
- break;
- default:
- pr("flaky unit type %d", tp->trd_type);
- break;
+ }
+ }
+ getsect(sp->shp_x, sp->shp_y, §);
+ if (sect.sct_type != SCT_WATER)
+ pr(" in a %s %s",
+ cname(sect.sct_own), dchr[sect.sct_type].d_name);
+ else
+ pr(" at sea");
+ break;
+ case EF_LAND:
+ lp = (struct lndstr *)tgp;
+ pr("(%3d) tech %d %d%% %s [",
+ lp->lnd_own,
+ lp->lnd_tech, lp->lnd_effic, lchr[(int)lp->lnd_type].l_name);
+ for (it = I_NONE + 1; it <= I_MAX; ++it) {
+ if (lp->lnd_item[it])
+ pr("%c:%d ", ichr[it].i_mnem, lp->lnd_item[it]);
}
- return 1;
+ pr("] #%d", lp->lnd_uid);
+ break;
+ case EF_PLANE:
+ pp = (struct plnstr *)tgp;
+ pr("(%3d) tech %d %d%% %s #%d",
+ pp->pln_own,
+ pp->pln_tech,
+ pp->pln_effic,
+ plchr[(int)pp->pln_type].pl_name, pp->pln_uid);
+ if (getnuke(nuk_on_plane(pp), &nuke))
+ pr("(%s)", nchr[nuke.nuk_type].n_name);
+ break;
+ default:
+ pr("flaky unit type %d", tgp->uid);
+ break;
+ }
+ return 1;
}
int
-trade_getitem(struct trdstr *tp, union trdgenstr *tgp)
-{
- if (!ef_read(tp->trd_type, tp->trd_unitid, (s_char *)tgp))
- return 0;
- return 1;
-}
-
-long
-get_couval(int cnum)
+trade_has_unsalable_cargo(struct empobj *tgp, int noisy)
{
- struct sctstr *sp;
- register int j, k, val;
- long secttot = 0;
+ int ret, i, type;
+ short *item;
+ struct nstr_item ni;
+ union empobj_storage cargo;
- for (j = 0; NULL != (sp = getsectid(j)); j++) {
- if (sp->sct_own != cnum)
- continue;
- secttot += (long)(dchr[sp->sct_type].d_value *
- ((float)sp->sct_effic+100.0));
- for (k = 0; ichr[k].i_name; k++) {
- if (ichr[k].i_value == 0 || ichr[k].i_vtype == 0)
- continue;
- val = getvar(ichr[k].i_vtype, (s_char *)sp, EF_SECTOR);
- secttot += val * ichr[k].i_value;
+ ret = 0;
+ if (tgp->ef_type == EF_SHIP || tgp->ef_type == EF_LAND) {
+ item = tgp->ef_type == EF_SHIP
+ ? ((struct shpstr *)tgp)->shp_item
+ : ((struct lndstr *)tgp)->lnd_item;
+ for (i = I_NONE + 1; i <= I_MAX; i++) {
+ if (item[i] && !ichr[i].i_sell) {
+ if (noisy)
+ pr("%s carries %s, which you can't sell.\n",
+ unit_nameof(tgp), ichr[i].i_name);
+ ret = 1;
+ }
}
}
- return secttot;
-}
-
-long
-get_outstand(int cnum)
-{
- struct lonstr loan;
- int j;
- long loantot = 0;
- for (j = 0; getloan(j, &loan); j++) {
- if (loan.l_status == LS_FREE)
- continue;
- if (loan.l_lonee == cnum)
- loantot += loan.l_amtdue;
+ for (type = EF_PLANE; type <= EF_NUKE; type++) {
+ snxtitem_cargo(&ni, type, tgp->ef_type, tgp->uid);
+ while (nxtitem(&ni, &cargo))
+ ret |= trade_has_unsalable_cargo(&cargo.gen, noisy);
}
- return loantot;
+
+ return ret;
}
-struct ichrstr *
-whichitem(char p)
+int
+trade_getitem(struct trdstr *tp, union empobj_storage *tgp)
{
- register int i;
-
- if (p == 0)
+ if (!ef_read(tp->trd_type, tp->trd_unitid, tgp))
return 0;
- for (i = 1; ichr[i].i_mnem != 0; i++)
- if (p == ichr[i].i_mnem)
- return (struct ichrstr *)(&ichr[i]);
- pr("Unrecognized item \"%c\"\n", p);
- return 0;
+ return 1;
}
+/*
+ * Return amount due for LOAN at time PAYTIME.
+ */
+double
+loan_owed(struct lonstr *loan, time_t paytime)
+{
+ time_t rtime; /* regular interest time */
+ time_t xtime; /* double interest time */
+ double rate;
+ int dur;
+
+ /*
+ * Split interval paytime - l_lastpay into regular (up to
+ * l_duedate) and extended (beyond l_duedate) time.
+ */
+ rtime = loan->l_duedate - loan->l_lastpay;
+ xtime = paytime - loan->l_duedate;
+ if (rtime < 0) {
+ xtime += rtime;
+ rtime = 0;
+ }
+ if (xtime < 0) {
+ rtime += xtime;
+ xtime = 0;
+ }
+ if (CANT_HAPPEN(rtime < 0))
+ rtime = 0;
+
+ dur = loan->l_ldur;
+ if (CANT_HAPPEN(dur <= 0))
+ dur = 1;
+ rate = loan->l_irate / 100.0 / (dur * SECS_PER_DAY);
+
+ return loan->l_amtdue * (1.0 + (rtime + xtime * 2) * rate);
+}
projects / empserver / blobdiff