empserver/src/lib/commands/rada.c

151 lines
4.1 KiB
C

/*
* Empire - A multi-player, client/server Internet based war game.
* Copyright (C) 1986-2005, 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.
*
* ---
*
* rada.c: Do radar from a ship/unit/sector
*
* Known contributors to this file:
*
*/
#include <ctype.h>
#include "misc.h"
#include "player.h"
#include "xy.h"
#include "ship.h"
#include "land.h"
#include "sect.h"
#include "nsc.h"
#include "nat.h"
#include "file.h"
#include "commands.h"
#include "optlist.h"
int
rada(void)
{
s_char *cp;
double tf;
double tech;
struct nstr_item ni;
struct nstr_sect ns;
struct shpstr ship;
struct lndstr land;
struct sctstr sect;
int from_unit;
s_char buf[1024];
from_unit = (**player->argp == 'l');
if (!from_unit)
cp = getstarg(player->argp[1],
"Radar from (ship # or sector(s)) : ", buf);
else
cp = getstarg(player->argp[1],
"Radar from (unit # or sector(s)) : ", buf);
if (cp == 0)
return RET_SYN;
switch (sarg_type(cp)) {
case NS_AREA:
if (!snxtsct(&ns, cp))
return RET_SYN;
tech = tfact(player->cnum, 8.0);
if (tech > ((double)WORLD_Y / 4.0))
tech = ((double)WORLD_Y / 4.0);
if (tech > ((double)WORLD_X / 8.0))
tech = ((double)WORLD_X / 8.0);
while (nxtsct(&ns, &sect)) {
if (sect.sct_type != SCT_RADAR)
continue;
if (!player->owner)
continue;
radmap(sect.sct_x, sect.sct_y, (int)sect.sct_effic,
(int)(tech * 2.0), 0.0);
}
break;
case NS_LIST:
case NS_GROUP:
if (!from_unit) {
/* assumes a NS_LIST return is a shipno */
if (!snxtitem(&ni, EF_SHIP, cp)) {
pr("Specify at least one ship\n");
return RET_SYN;
}
while (nxtitem(&ni, &ship)) {
if (!player->owner)
continue;
if (mchr[(int)ship.shp_type].m_flags & M_SONAR)
tf = techfact(ship.shp_tech, 1.0);
else
tf = 0.0;
pr("%s at ", prship(&ship));
tech = techfact(ship.shp_tech,
(double)mchr[(int)ship.shp_type].m_vrnge);
if (tech > ((double)WORLD_Y / 2.0))
tech = ((double)WORLD_Y / 2.0);
if (tech > ((double)WORLD_X / 4.0))
tech = ((double)WORLD_X / 4.0);
radmap(ship.shp_x, ship.shp_y, ship.shp_effic,
(int)tech, tf);
}
} else {
/* from a land unit */
if (!snxtitem(&ni, EF_LAND, cp)) {
pr("Specify at least one unit\n");
return RET_SYN;
}
while (nxtitem(&ni, &land)) {
if (!player->owner)
continue;
if (!(lchr[(int)land.lnd_type].l_flags & L_RADAR)) {
pr("%s can't use radar!\n", prland(&land));
continue;
}
if (land.lnd_ship >= 0) {
pr("Units on ships can't use radar!\n");
continue;
}
tf = 0.0;
pr("%s at ", prland(&land));
tech = techfact(land.lnd_tech, (double)land.lnd_spy);
if (tech > ((double)WORLD_Y / 2.0))
tech = ((double)WORLD_Y / 2.0);
if (tech > ((double)WORLD_X / 4.0))
tech = ((double)WORLD_X / 4.0);
radmap(land.lnd_x, land.lnd_y, land.lnd_effic,
(int)tech, tf);
}
}
break;
default:
if (!from_unit)
pr("Must use a ship or sector specifier\n");
else
pr("Must use a unit or sector specifier\n");
return RET_SYN;
}
return RET_OK;
}