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empserver/src/lib/commands/load.c
Markus Armbruster 3cc8de8aef Fix extra prompt after abort due to misuse of snxtitem() 
The old code used getstarg() to get an argument with a different
prompt than snxtitem() uses, then passed the value to snxtitem()
unchecked.  If the player aborts, getstarg() returns a null pointer,
and snxtitem() prompts again.  Affected:

* load/lload plane/land third argument; load_plane_ship(),
  load_land_ship(), load_plane_land(), load_land_land()

* bomb, drop, fly, paradrop, recon and sweep second argument;
  get_planes()

* tend and ltend second and fourth argument; ltend(), tend(),
  tend_land()

* mission second argument; mission()

Fix by making snxtitem() taking a prompt argument, null pointer
requests the old prompt.

Use that to simplify multifire() and torp().  Change the other callers
to pass NULL.
2008-07-26 21:36:37 -04:00

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/*
* Empire - A multi-player, client/server Internet based war game.
* Copyright (C) 1986-2008, 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.
*
* ---
*
* load.c: load/unload goods from a sector onto a ship or land unit
*
* Known contributors to this file:
* David Sharnoff, 1987
* Ken Stevens, 1995 (rewritten)
* Steve McClure, 1998-2000
*/
#include <config.h>
#include <ctype.h>
#include "commands.h"
#include "empobj.h"
#include "item.h"
#include "land.h"
#include "optlist.h"
#include "plague.h"
#include "plane.h"
#include "ship.h"
/*
* The values 1 and -1 are important below, don't change them.
*/
#define LOAD 1
#define UNLOAD -1
static int load_plane_ship(struct sctstr *sectp, struct shpstr *sp,
int noisy, int load_unload, int *nshipsp);
static int load_land_ship(struct sctstr *sectp, struct shpstr *sp,
int noisy, int load_unload, int *nshipsp);
static int load_comm_ship(struct sctstr *sectp, struct shpstr *sp,
struct ichrstr *ich, int load_unload,
int *nshipsp);
static int load_plane_land(struct sctstr *sectp, struct lndstr *lp,
int noisy, int load_unload, int *nunitsp);
static int load_land_land(struct sctstr *sectp, struct lndstr *lp,
int noisy, int load_unload, int *nunitsp);
static int load_comm_land(struct sctstr *sectp, struct lndstr *lp,
struct ichrstr *ich, int load_unload,
int *nunitsp);
int
load(void)
{
int noisy;
int load_unload;
int type;
struct nstr_item nbst;
struct ichrstr *ich;
int nships;
struct sctstr sect;
struct shpstr ship;
int retval;
char *p;
char buf[1024];
if (!(p = getstarg(player->argp[1],
"What commodity (or 'plane' or 'land')? ", buf))
|| !*p)
return RET_SYN;
if (!strncmp(p, "plane", 5))
type = EF_PLANE;
else if (!strncmp(p, "land", 4))
type = EF_LAND;
else if (NULL != (ich = item_by_name(p)))
type = EF_SECTOR;
else {
pr("Can't load '%s'\n", p);
return RET_SYN;
}
if (!(p = getstarg(player->argp[2], "Ship(s): ", buf)) || !*p)
return RET_SYN;
noisy = isdigit(*p);
if (!snxtitem(&nbst, EF_SHIP, p, NULL))
return RET_SYN;
load_unload = **player->argp == 'l' ? LOAD : UNLOAD;
nships = 0;
while (nxtitem(&nbst, &ship)) {
if (!ship.shp_own)
continue;
if (!player->owner && (load_unload == UNLOAD)) {
continue;
}
if (opt_MARKET) {
if (ontradingblock(EF_SHIP, &ship)) {
pr("You cannot load/unload an item on the trading block!\n");
continue;
}
}
if (ship.shp_own != player->cnum) {
if (!noisy)
continue;
if (getrel(getnatp(player->cnum), ship.shp_own) < FRIENDLY)
continue;
}
if (!getsect(ship.shp_x, ship.shp_y, &sect)) /* XXX */
continue;
if ((sect.sct_own != player->cnum) &&
(ship.shp_own != player->cnum))
continue;
if (!player->owner &&
!sect_has_dock(&sect))
continue;
if (!sect.sct_own)
continue;
if ((sect.sct_own != player->cnum) && (load_unload == LOAD)) {
if (noisy)
pr("You don't own %s \n",
xyas(ship.shp_x, ship.shp_y, player->cnum));
continue;
}
if (!sect_has_dock(&sect)) {
if (noisy)
pr("Sector %s is not a harbor or canal.\n",
xyas(ship.shp_x, ship.shp_y, player->cnum));
continue;
}
if (sect.sct_own != player->cnum && load_unload == UNLOAD
&& getrel(getnatp(sect.sct_own), player->cnum) < FRIENDLY) {
if (noisy)
pr("You can't unload into an unfriendly %s\n",
dchr[sect.sct_type].d_name);
continue;
}
if (sect.sct_effic < 2) {
if (noisy)
pr("The %s at %s is not 2%% efficient yet.\n",
dchr[sect.sct_type].d_name,
xyas(ship.shp_x, ship.shp_y, player->cnum));
continue;
}
switch (type) {
case EF_PLANE:
if (0 !=
(retval =
load_plane_ship(&sect, &ship, noisy, load_unload,
&nships)))
return retval;
break;
case EF_LAND:
if (0 !=
(retval =
load_land_ship(&sect, &ship, noisy, load_unload,
&nships)))
return retval;
break;
case EF_SECTOR:
if (0 !=
(retval =
load_comm_ship(&sect, &ship, ich, load_unload, &nships)))
return retval;
}
/* load/unload plague */
if (sect.sct_pstage == PLG_INFECT
&& ship.shp_pstage == PLG_HEALTHY)
ship.shp_pstage = PLG_EXPOSED;
if (ship.shp_pstage == PLG_INFECT
&& sect.sct_pstage == PLG_HEALTHY)
sect.sct_pstage = PLG_EXPOSED;
putsect(&sect);
putship(ship.shp_uid, &ship);
}
if (!nships)
pr("No ships affected\n");
else
pr("%d ship%s %sloaded\n", nships, splur(nships),
load_unload == UNLOAD ? "un" : "");
return RET_OK;
}
int
lload(void)
{
int noisy;
int load_unload;
int type;
struct nstr_item nbst;
struct ichrstr *ich;
int nunits;
struct sctstr sect;
struct lndstr land;
int retval;
char *p;
char buf[1024];
if (!(p = getstarg(player->argp[1],
"What commodity (or 'plane' or 'land')? ", buf))
|| !*p)
return RET_SYN;
if (!strncmp(p, "plane", 5))
type = EF_PLANE;
else if (!strncmp(p, "land", 4))
type = EF_LAND;
else if (NULL != (ich = item_by_name(p)))
type = EF_SECTOR;
else {
pr("Can't load '%s'\n", p);
return RET_SYN;
}
if (!(p = getstarg(player->argp[2], "Unit(s): ", buf)) || !*p)
return RET_SYN;
noisy = isdigit(*p);
if (!snxtitem(&nbst, EF_LAND, p, NULL))
return RET_SYN;
load_unload = player->argp[0][1] == 'l' ? LOAD : UNLOAD;
nunits = 0;
while (nxtitem(&nbst, &land)) {
if (land.lnd_own == 0)
continue;
if (player->cnum != land.lnd_own &&
getrel(getnatp(player->cnum), land.lnd_own) != ALLIED)
continue;
if (!getsect(land.lnd_x, land.lnd_y, &sect)) /* XXX */
continue;
if (sect.sct_own != player->cnum && land.lnd_own != player->cnum)
continue;
if (opt_MARKET) {
if (ontradingblock(EF_LAND, &land)) {
pr("You cannot load/unload an item on the trading block!\n");
continue;
}
}
if (sect.sct_own != player->cnum &&
getrel(getnatp(sect.sct_own), land.lnd_own) != ALLIED) {
pr("Sector %s is not yours.\n",
xyas(land.lnd_x, land.lnd_y, player->cnum));
continue;
}
switch (type) {
case EF_LAND:
if (0 !=
(retval =
load_land_land(&sect, &land, noisy, load_unload,
&nunits)))
return retval;
break;
case EF_PLANE:
if (0 !=
(retval =
load_plane_land(&sect, &land, noisy, load_unload,
&nunits)))
return retval;
break;
case EF_SECTOR:
if (0 !=
(retval =
load_comm_land(&sect, &land, ich, load_unload, &nunits)))
return retval;
}
/* load/unload plague */
if (sect.sct_pstage == PLG_INFECT
&& land.lnd_pstage == PLG_HEALTHY)
land.lnd_pstage = PLG_EXPOSED;
if (land.lnd_pstage == PLG_INFECT
&& sect.sct_pstage == PLG_HEALTHY)
sect.sct_pstage = PLG_EXPOSED;
putsect(&sect);
putland(land.lnd_uid, &land);
}
if (nunits == 0)
pr("No units affected\n");
else
pr("%d unit%s %sloaded\n", nunits, splur(nunits),
load_unload == UNLOAD ? "un" : "");
return RET_OK;
}
void
gift(natid givee, natid giver, void *ptr, char *mesg)
{
struct empobj *gen = ptr;
if (giver != givee)
wu(0, givee, "%s %s %s\n", cname(giver), obj_nameof(gen), mesg);
makelost(gen->ef_type, gen->own, gen->uid, gen->x, gen->y);
gen->own = givee;
makenotlost(gen->ef_type, gen->own, gen->uid, gen->x, gen->y);
}
static int
still_ok_ship(struct sctstr *sectp, struct shpstr *shipp)
{
if (!check_sect_ok(sectp))
return 0;
if (!check_ship_ok(shipp))
return 0;
return 1;
}
static int
still_ok_land(struct sctstr *sectp, struct lndstr *landp)
{
if (!check_sect_ok(sectp))
return 0;
if (!check_land_ok(landp))
return 0;
return 1;
}
static int
load_plane_ship(struct sctstr *sectp, struct shpstr *sp, int noisy,
int load_unload, int *nshipsp)
{
struct nstr_item ni;
struct plnstr pln;
int loaded = 0;
char buf[1024];
char *p;
char prompt[512];
struct mchrstr *mcp = mchr + sp->shp_type;
if (mcp->m_nplanes + mcp->m_nchoppers + mcp->m_nxlight == 0) {
if (noisy)
pr("%s cannot carry planes\n", prship(sp));
return 0;
}
count_planes(sp);
if (load_unload == LOAD &&
sp->shp_nchoppers >= mcp->m_nchoppers &&
sp->shp_nxlight >= mcp->m_nxlight &&
sp->shp_nplane >= mcp->m_nplanes) {
if (noisy)
pr("%s doesn't have room for any more planes\n", prship(sp));
return 0;
}
sprintf(prompt, "Plane(s) to %s %s? ",
load_unload == LOAD ? "load onto" : "unload from", prship(sp));
p = getstarg(player->argp[3], prompt, buf);
if (!p)
return RET_SYN;
if (!snxtitem(&ni, EF_PLANE, p, NULL))
return RET_SYN;
if (!still_ok_ship(sectp, sp))
return RET_SYN;
if (noisy && p && *p)
noisy = isdigit(*p);
while (nxtitem(&ni, &pln)) {
if (pln.pln_own != player->cnum)
continue;
if (!(plchr[(int)pln.pln_type].pl_flags & P_L)
&& !(plchr[(int)pln.pln_type].pl_flags & P_E)
&& !(plchr[(int)pln.pln_type].pl_flags & P_K)
&& !(plchr[(int)pln.pln_type].pl_flags & P_M)
) {
if (noisy)
pr("You can only load light planes, helos, xtra-light, or missiles onto ships.\n");
continue;
}
if (load_unload == LOAD && pln.pln_ship > -1) {
if (noisy)
pr("%s is already on ship #%d!\n",
prplane(&pln), pln.pln_ship);
continue;
}
if (load_unload == LOAD && pln.pln_land > -1) {
if (noisy)
pr("%s is already on land unit #%d!\n",
prplane(&pln), pln.pln_land);
continue;
}
if (pln.pln_harden != 0) {
if (noisy)
pr("%s has been hardened and can't be loaded\n",
prplane(&pln));
continue;
}
/* Plane sanity done */
/* Find the right ship */
if (load_unload == UNLOAD) {
if (pln.pln_ship != sp->shp_uid)
continue;
} else if (sp->shp_x != pln.pln_x || sp->shp_y != pln.pln_y)
continue;
/* ship to (plane or missle) sanity */
if (!could_be_on_ship(&pln, sp)) {
if (plchr[(int)pln.pln_type].pl_flags & P_L) {
strcpy(buf, "planes");
} else if (plchr[(int)pln.pln_type].pl_flags & P_K) {
strcpy(buf, "choppers");
} else if (plchr[(int)pln.pln_type].pl_flags & P_M) {
strcpy(buf, "missiles");
} else if (plchr[(int)pln.pln_type].pl_flags & P_E) {
strcpy(buf, "extra light planes");
} /* else impossible */
if (noisy)
pr("%s cannot carry %s.\n", prship(sp), buf);
continue;
}
/* Fit plane on ship */
if (load_unload == LOAD) {
if (!put_plane_on_ship(&pln, sp)) {
if (noisy)
pr("Can't put plane %d on this ship!\n", pln.pln_uid);
continue;
}
sprintf(buf, "loaded on your %s at %s",
prship(sp), xyas(sp->shp_x, sp->shp_y, sp->shp_own));
gift(sp->shp_own, player->cnum, &pln, buf);
pln.pln_mission = 0;
putplane(pln.pln_uid, &pln);
} else {
take_plane_off_ship(&pln, sp);
sprintf(buf, "unloaded in your %s at %s",
dchr[sectp->sct_type].d_name,
xyas(sectp->sct_x, sectp->sct_y, sectp->sct_own));
gift(sectp->sct_own, player->cnum, &pln, buf);
putplane(pln.pln_uid, &pln);
}
pr("%s %s %s at %s.\n",
prplane(&pln),
(load_unload == UNLOAD) ?
"unloaded from" : "loaded onto",
prship(sp), xyas(sp->shp_x, sp->shp_y, player->cnum));
loaded = 1;
}
*nshipsp += loaded;
return 0;
}
static int
load_land_ship(struct sctstr *sectp, struct shpstr *sp, int noisy,
int load_unload, int *nshipsp)
{
struct nstr_item pni, ni;
struct lndstr land;
struct plnstr plane;
int loaded = 0;
char *p;
char prompt[512];
char buf[1024];
int load_spy = 0;
count_units(sp);
if (load_unload == LOAD) {
if (opt_LANDSPIES) {
if ((mchr[(int)sp->shp_type].m_flags & M_SUB) &&
(mchr[(int)sp->shp_type].m_nland == 0)) {
if (sp->shp_nland >= 2) {
pr("Non-land unit carrying subs can only carry up to two spy units.\n");
return 0;
}
/* Eh, let 'em load a spy only */
load_spy = 1;
}
}
if ((!load_spy) &&
(sp->shp_nland >= mchr[(int)sp->shp_type].m_nland)) {
if (noisy) {
if (mchr[(int)sp->shp_type].m_nland)
pr("%s doesn't have room for any more land units!\n",
prship(sp));
else
pr("%s cannot carry land units!\n", prship(sp));
}
return 0;
}
}
sprintf(prompt, "Land unit(s) to %s %s? ",
load_unload == LOAD ? "load onto" : "unload from", prship(sp));
p = getstarg(player->argp[3], prompt, buf);
if (!p)
return RET_SYN;
if (!snxtitem(&ni, EF_LAND, p, NULL))
return RET_SYN;
if (!still_ok_ship(sectp, sp))
return RET_SYN;
if (noisy && p && *p)
noisy = isdigit(*p);
while (nxtitem(&ni, &land)) {
if (land.lnd_own != player->cnum)
continue;
if (load_unload == LOAD) {
if (land.lnd_ship > -1) {
if (noisy)
pr("%s is already on ship #%d!\n",
prland(&land), land.lnd_ship);
continue;
}
if (land.lnd_land > -1) {
if (noisy)
pr("%s is already on land #%d!\n",
prland(&land), land.lnd_land);
continue;
}
lnd_count_units(&land);
if (land.lnd_nland > 0) {
if (noisy)
pr("%s cannot be loaded since it is carrying units\n",
prland(&land));
continue;
}
if (lchr[(int)land.lnd_type].l_flags & L_HEAVY) {
if (noisy)
pr("%s is too heavy to load.\n", prland(&land));
continue;
}
if (load_spy && !(lchr[(int)land.lnd_type].l_flags & L_SPY)) {
if (noisy)
pr("Subs can only carry spy units.\n");
continue;
}
}
/* Unit sanity done */
/* Find the right ship */
if (load_unload == UNLOAD) {
if (land.lnd_ship != sp->shp_uid)
continue;
if (land.lnd_land > -1)
continue;
} else if (sp->shp_x != land.lnd_x || sp->shp_y != land.lnd_y)
continue;
if ((!(lchr[(int)land.lnd_type].l_flags & L_LIGHT)) &&
(!((mchr[(int)sp->shp_type].m_flags & M_SUPPLY) &&
(!(mchr[(int)sp->shp_type].m_flags & M_SUB))))) {
if (noisy) {
pr("You can only load light units onto ships,\n");
pr("unless the ship is a non-sub supply ship\n");
pr("%s not loaded\n", prland(&land));
}
continue;
}
/* Fit unit on ship */
if (load_unload == LOAD) {
count_units(sp);
/* We have to check again, since it may have changed */
if (opt_LANDSPIES) {
if ((mchr[(int)sp->shp_type].m_flags & M_SUB) &&
(mchr[(int)sp->shp_type].m_nland == 0)) {
if (sp->shp_nland >= 2) {
pr("Non-land unit carrying subs can only carry up to two spy units.\n");
return 0;
}
/* Eh, let 'em load a spy only */
load_spy = 1;
}
}
if (!load_spy &&
(sp->shp_nland >= mchr[(int)sp->shp_type].m_nland)) {
if (noisy) {
if (mchr[(int)sp->shp_type].m_nland)
pr("%s doesn't have room for any more land units!\n",
prship(sp));
else
pr("%s cannot carry land units!\n", prship(sp));
}
return 0;
}
sprintf(buf, "loaded on your %s at %s",
prship(sp), xyas(sp->shp_x, sp->shp_y, sp->shp_own));
gift(sp->shp_own, player->cnum, &land, buf);
land.lnd_ship = sp->shp_uid;
land.lnd_harden = 0;
land.lnd_mission = 0;
resupply_all(&land);
sp->shp_nland++;
putland(land.lnd_uid, &land);
if (!has_supply(&land))
pr("WARNING: %s is out of supply!\n", prland(&land));
putship(sp->shp_uid, sp);
snxtitem_xy(&pni, EF_PLANE, land.lnd_x, land.lnd_y);
while (nxtitem(&pni, &plane)) {
if (plane.pln_flags & PLN_LAUNCHED)
continue;
if (plane.pln_land != land.lnd_uid)
continue;
sprintf(buf, "loaded on %s", prship(sp));
gift(sp->shp_own, player->cnum, &plane, buf);
plane.pln_mission = 0;
putplane(plane.pln_uid, &plane);
}
} else {
sprintf(buf, "unloaded in your %s at %s",
dchr[sectp->sct_type].d_name,
xyas(sectp->sct_x, sectp->sct_y, sectp->sct_own));
/* Spies are unloaded quietly, others aren't */
if (!(lchr[(int)land.lnd_type].l_flags & L_SPY))
gift(sectp->sct_own, player->cnum, &land, buf);
land.lnd_ship = -1;
sp->shp_nland--;
putland(land.lnd_uid, &land);
putship(sp->shp_uid, sp);
/* Spies are unloaded quietly, others aren't, and
in the off chance they can carry a plane (missile?)
they are quietly unloaded too. */
if (!(lchr[(int)land.lnd_type].l_flags & L_SPY)) {
snxtitem_xy(&pni, EF_PLANE, land.lnd_x, land.lnd_y);
while (nxtitem(&pni, &plane)) {
if (plane.pln_flags & PLN_LAUNCHED)
continue;
if (plane.pln_land != land.lnd_uid)
continue;
sprintf(buf, "unloaded at %s",
xyas(plane.pln_x, plane.pln_y,
sectp->sct_own));
gift(sectp->sct_own, player->cnum, &plane, buf);
plane.pln_mission = 0;
putplane(plane.pln_uid, &plane);
}
}
}
pr("%s %s %s at %s.\n",
prland(&land),
(load_unload == UNLOAD) ?
"unloaded from" : "loaded onto",
prship(sp), xyas(sp->shp_x, sp->shp_y, player->cnum));
loaded = 1;
}
*nshipsp += loaded;
return 0;
}
static int
load_comm_ship(struct sctstr *sectp, struct shpstr *sp,
struct ichrstr *ich, int load_unload, int *nshipsp)
{
i_type item = ich->i_uid;
struct mchrstr *mcp = &mchr[(int)sp->shp_type];
int ship_amt, ship_max, sect_amt, move_amt;
int amount;
char prompt[512];
char *p;
char buf[1024];
sprintf(prompt, "Number of %s to %s %s at %s? ",
ich->i_name,
(load_unload == UNLOAD) ?
"unload from" : "load onto",
prship(sp), xyas(sp->shp_x, sp->shp_y, player->cnum));
if (!(p = getstarg(player->argp[3], prompt, buf)) || !*p)
return RET_SYN;
if (!still_ok_ship(sectp, sp))
return RET_SYN;
ship_amt = sp->shp_item[item];
ship_max = mcp->m_item[item];
sect_amt = sectp->sct_item[item];
amount = atoi(p);
if (amount < 0)
move_amt = -amount - ship_amt;
else
move_amt = load_unload == LOAD ? amount : -amount;
if (move_amt > ship_max - ship_amt)
move_amt = ship_max - ship_amt;
if (move_amt < -ship_amt)
move_amt = -ship_amt;
if (move_amt > sect_amt)
move_amt = sect_amt;
if (move_amt < sect_amt - ITEM_MAX)
move_amt = sect_amt - ITEM_MAX;
if (!move_amt)
return RET_OK;
if (sectp->sct_oldown != player->cnum && item == I_CIVIL) {
pr("%s civilians refuse to %s at %s!\n",
move_amt < 0 ? "Your" : "Foreign",
move_amt < 0 ? "disembark" : "board",
xyas(sectp->sct_x, sectp->sct_y, player->cnum));
return RET_FAIL;
}
if (!want_to_abandon(sectp, item, move_amt, 0))
return RET_FAIL;
if (!still_ok_ship(sectp, sp))
return RET_SYN;
sectp->sct_item[item] = sect_amt - move_amt;
sp->shp_item[item] = ship_amt + move_amt;
if (move_amt >= 0) {
pr("%d %s loaded onto %s at %s\n",
move_amt, ich->i_name,
prship(sp), xyas(sp->shp_x, sp->shp_y, player->cnum));
if (sp->shp_own != player->cnum) {
wu(0, sp->shp_own, "%s loaded %d %s onto %s at %s\n",
cname(player->cnum), move_amt, ich->i_name,
prship(sp), xyas(sp->shp_x, sp->shp_y, sp->shp_own));
}
} else {
pr("%d %s unloaded from %s at %s\n",
-move_amt, ich->i_name,
prship(sp), xyas(sp->shp_x, sp->shp_y, player->cnum));
if (sectp->sct_own != player->cnum) {
wu(0, sectp->sct_own, "%s unloaded %d %s from %s at %s\n",
cname(player->cnum), -move_amt, ich->i_name,
prship(sp), xyas(sp->shp_x, sp->shp_y, sectp->sct_own));
}
}
++*nshipsp;
return 0;
}
static int
load_plane_land(struct sctstr *sectp, struct lndstr *lp, int noisy,
int load_unload, int *nunitsp)
{
struct nstr_item ni;
struct plnstr pln;
int loaded = 0;
char *p;
char prompt[512];
char buf[1024];
struct lchrstr *lcp = lchr + lp->lnd_type;
if (!lcp->l_nxlight) {
if (noisy)
pr("%s cannot carry extra-light planes.\n", prland(lp));
return 0;
}
count_land_planes(lp);
if (load_unload == LOAD && lp->lnd_nxlight >= lcp->l_nxlight) {
if (noisy)
pr("%s doesn't have room for any more extra-light planes\n",
prland(lp));
return 0;
}
sprintf(prompt, "Plane(s) to %s %s? ",
load_unload == LOAD ? "load onto" : "unload from", prland(lp));
p = getstarg(player->argp[3], prompt, buf);
if (!p)
return RET_SYN;
if (!snxtitem(&ni, EF_PLANE, p, NULL))
return RET_SYN;
if (!still_ok_land(sectp, lp))
return RET_SYN;
if (noisy && p && *p)
noisy = isdigit(*p);
if (sectp->sct_own != player->cnum && load_unload == LOAD) {
pr("Sector %s is not yours.\n",
xyas(lp->lnd_x, lp->lnd_y, player->cnum));
return 0;
}
while (nxtitem(&ni, &pln)) {
if (pln.pln_own != player->cnum)
continue;
if (!(plchr[(int)pln.pln_type].pl_flags & P_E)) {
if (noisy)
pr("You can only load xlight planes onto units.\n");
continue;
}
if (load_unload == LOAD && pln.pln_ship > -1) {
if (noisy)
pr("%s is already on ship #%d!\n",
prplane(&pln), pln.pln_ship);
continue;
}
if (load_unload == LOAD && pln.pln_land > -1) {
if (noisy)
pr("%s is already on unit #%d!\n",
prplane(&pln), pln.pln_land);
continue;
}
if (pln.pln_harden != 0) {
if (noisy)
pr("%s has been hardened and can't be loaded\n",
prplane(&pln));
continue;
}
/* Plane sanity done */
/* Find the right unit */
if (load_unload == UNLOAD) {
if (pln.pln_land != lp->lnd_uid)
continue;
} else if (lp->lnd_x != pln.pln_x || lp->lnd_y != pln.pln_y)
continue;
/* Fit plane on unit */
if (load_unload == LOAD) {
if (!put_plane_on_land(&pln, lp)) {
if (noisy)
pr("Can't put plane %d on this unit!\n", pln.pln_uid);
continue;
}
sprintf(buf, "loaded on %s at %s",
prland(lp), xyas(lp->lnd_x, lp->lnd_y, lp->lnd_own));
gift(lp->lnd_own, player->cnum, &pln, buf);
putplane(pln.pln_uid, &pln);
} else {
take_plane_off_land(&pln, lp);
sprintf(buf, "unloaded at your sector at %s",
xyas(sectp->sct_x, sectp->sct_y, sectp->sct_own));
gift(sectp->sct_own, player->cnum, &pln, buf);
putplane(pln.pln_uid, &pln);
}
pr("%s %s %s at %s.\n",
prplane(&pln),
(load_unload == UNLOAD) ?
"unloaded from" : "loaded onto",
prland(lp), xyas(lp->lnd_x, lp->lnd_y, player->cnum));
loaded = 1;
}
*nunitsp += loaded;
return 0;
}
static int
load_comm_land(struct sctstr *sectp, struct lndstr *lp,
struct ichrstr *ich, int load_unload, int *nunitsp)
{
i_type item = ich->i_uid;
struct lchrstr *lcp = &lchr[(int)lp->lnd_type];
int land_amt, land_max, sect_amt, move_amt;
int amount;
char prompt[512];
char *p;
char buf[1024];
sprintf(prompt, "Number of %s to %s %s at %s? ",
ich->i_name,
(load_unload == UNLOAD) ?
"unload from" : "load onto",
prland(lp), xyas(lp->lnd_x, lp->lnd_y, player->cnum));
if (!(p = getstarg(player->argp[3], prompt, buf)) || !*p)
return RET_SYN;
if (!still_ok_land(sectp, lp))
return RET_SYN;
land_amt = lp->lnd_item[item];
land_max = lcp->l_item[item];
sect_amt = sectp->sct_item[item];
amount = atoi(p);
if (amount < 0)
move_amt = -amount - land_amt;
else
move_amt = load_unload == LOAD ? amount : -amount;
if (move_amt > land_max - land_amt)
move_amt = land_max - land_amt;
if (move_amt < -land_amt)
move_amt = -land_amt;
if (move_amt > sect_amt)
move_amt = sect_amt;
if (move_amt < sect_amt - ITEM_MAX)
move_amt = sect_amt - ITEM_MAX;
if (!move_amt)
return RET_OK;
if (sectp->sct_own != player->cnum && move_amt > 0) {
pr("Sector %s is not yours.\n",
xyas(lp->lnd_x, lp->lnd_y, player->cnum));
return RET_FAIL;
}
if (sectp->sct_oldown != player->cnum && item == I_CIVIL) {
pr("%s civilians refuse to %s at %s!\n",
move_amt < 0 ? "Your" : "Foreign",
move_amt < 0 ? "disembark" : "board",
xyas(sectp->sct_x, sectp->sct_y, player->cnum));
return RET_FAIL;
}
sectp->sct_item[item] = sect_amt - move_amt;
lp->lnd_item[item] = land_amt + move_amt;
/* Did we put mils onto this unit? If so, reset the fortification */
if (item == I_MILIT && move_amt > 0)
lp->lnd_harden = 0;
if (move_amt >= 0) {
pr("%d %s loaded onto %s at %s\n",
move_amt, ich->i_name,
prland(lp), xyas(lp->lnd_x, lp->lnd_y, player->cnum));
if (lp->lnd_own != player->cnum) {
wu(0, lp->lnd_own, "%s loaded %d %s onto %s at %s\n",
cname(player->cnum), move_amt, ich->i_name,
prland(lp), xyas(lp->lnd_x, lp->lnd_y, lp->lnd_own));
}
} else {
pr("%d %s unloaded from %s at %s\n",
-move_amt, ich->i_name,
prland(lp), xyas(lp->lnd_x, lp->lnd_y, player->cnum));
if (sectp->sct_own != player->cnum) {
wu(0, sectp->sct_own, "%s unloaded %d %s from %s at %s\n",
cname(player->cnum), -move_amt, ich->i_name,
prland(lp), xyas(lp->lnd_x, lp->lnd_y, sectp->sct_own));
}
}
++*nunitsp;
return 0;
}
static int
load_land_land(struct sctstr *sectp, struct lndstr *lp, int noisy,
int load_unload, int *nunitsp)
{
struct nstr_item pni, ni;
struct lndstr land;
struct plnstr plane;
int loaded = 0;
char *p;
char prompt[512];
char buf[1024];
lnd_count_units(lp);
if (load_unload == LOAD
&& lp->lnd_nland >= lchr[lp->lnd_type].l_nland) {
if (noisy) {
if (lp->lnd_nland)
pr("%s doesn't have room for any more land units!\n",
prland(lp));
else
pr("%s cannot carry land units!\n", prland(lp));
}
return 0;
}
sprintf(prompt, "Land unit(s) to %s %s? ",
load_unload == LOAD ? "load onto" : "unload from", prland(lp));
p = getstarg(player->argp[3], prompt, buf);
if (!p)
return RET_SYN;
if (!snxtitem(&ni, EF_LAND, p, NULL))
return RET_SYN;
if (!still_ok_land(sectp, lp))
return RET_SYN;
if (noisy && p && *p)
noisy = isdigit(*p);
while (nxtitem(&ni, &land)) {
if (land.lnd_own != player->cnum)
continue;
if (load_unload == LOAD) {
if (land.lnd_ship > -1) {
if (noisy)
pr("%s is already on ship #%d!\n",
prland(&land), land.lnd_ship);
continue;
}
if (land.lnd_land > -1) {
if (noisy)
pr("%s is already on land #%d!\n",
prland(&land), land.lnd_land);
continue;
}
lnd_count_units(&land);
if (land.lnd_nland > 0) {
if (noisy)
pr("%s cannot be loaded since it is carrying units\n",
prland(&land));
continue;
}
if (land.lnd_uid == lp->lnd_uid) {
if (noisy)
pr("%s can't be loaded onto itself!\n", prland(&land));
continue;
}
if (lchr[(int)land.lnd_type].l_flags & (L_HEAVY | L_TRAIN)) {
if (noisy)
pr("%s is too heavy to load.\n", prland(&land));
continue;
}
}
/* Unit sanity done */
/* Find the right ship */
if (load_unload == UNLOAD) {
if (land.lnd_land != lp->lnd_uid)
continue;
if (land.lnd_ship > -1)
continue;
} else if (lp->lnd_x != land.lnd_x || lp->lnd_y != land.lnd_y)
continue;
/* Fit unit on ship */
if (load_unload == LOAD) {
lnd_count_units(lp);
if (lp->lnd_nland >= lchr[lp->lnd_type].l_nland) {
if (noisy) {
if (lp->lnd_nland)
pr("%s doesn't have room for any more land units!\n",
prland(lp));
else
pr("%s cannot carry land units!\n", prland(lp));
}
break;
}
sprintf(buf, "loaded on your %s at %s",
prland(lp), xyas(lp->lnd_x, lp->lnd_y, lp->lnd_own));
gift(lp->lnd_own, player->cnum, &land, buf);
land.lnd_land = lp->lnd_uid;
land.lnd_harden = 0;
land.lnd_mission = 0;
resupply_all(&land);
lp->lnd_nland++;
putland(land.lnd_uid, &land);
if (!has_supply(&land))
pr("WARNING: %s is out of supply!\n", prland(&land));
putland(lp->lnd_uid, lp);
snxtitem_xy(&pni, EF_PLANE, land.lnd_x, land.lnd_y);
while (nxtitem(&pni, &plane)) {
if (plane.pln_flags & PLN_LAUNCHED)
continue;
if (plane.pln_land != land.lnd_uid)
continue;
sprintf(buf, "loaded on %s", prland(lp));
gift(lp->lnd_own, player->cnum, &plane, buf);
plane.pln_mission = 0;
putplane(plane.pln_uid, &plane);
}
} else {
sprintf(buf, "unloaded in your %s at %s",
dchr[sectp->sct_type].d_name,
xyas(sectp->sct_x, sectp->sct_y, sectp->sct_own));
gift(sectp->sct_own, player->cnum, &land, buf);
land.lnd_land = -1;
lp->lnd_nland--;
putland(land.lnd_uid, &land);
putland(lp->lnd_uid, lp);
snxtitem_xy(&pni, EF_PLANE, land.lnd_x, land.lnd_y);
while (nxtitem(&pni, &plane)) {
if (plane.pln_flags & PLN_LAUNCHED)
continue;
if (plane.pln_land != land.lnd_uid)
continue;
sprintf(buf, "unloaded at %s",
xyas(plane.pln_x, plane.pln_y, sectp->sct_own));
gift(sectp->sct_own, player->cnum, &plane, buf);
plane.pln_mission = 0;
putplane(plane.pln_uid, &plane);
}
}
pr("%s %s %s at %s.\n",
prland(&land),
(load_unload == UNLOAD) ?
"unloaded from" : "loaded onto",
prland(lp), xyas(lp->lnd_x, lp->lnd_y, player->cnum));
loaded = 1;
}
*nunitsp += loaded;
return 0;
}
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