empserver/src/lib/commands/miss.c

303 lines
7.4 KiB
C

/*
* 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.
*
* ---
*
* miss.c: set missions for ships/planes/units
*
* Known contributors to this file:
* Thomas Ruschak, 1992
* Steve McClure, 2000
*/
#include <config.h>
#include "commands.h"
#include "empobj.h"
#include "mission.h"
#include "optlist.h"
#include "path.h"
/*
* mission <type> <planes/ships/units> <mission type> <op sector> [<radius>]
*/
int
mission(void)
{
static int ef_with_missions[] = { EF_SHIP, EF_LAND, EF_PLANE, EF_BAD };
char *p;
int type;
int mission;
coord x, y;
int desired_radius, radius;
struct sctstr opsect;
union empobj_storage item;
struct empobj *gp;
int num = 0, mobmax, mobused, dist;
struct nstr_item ni;
char buf[1024];
if ((p =
getstarg(player->argp[1], "Ship, plane or land unit (p,sh,la)? ",
buf)) == 0)
return RET_SYN;
type = ef_byname_from(p, ef_with_missions);
if (type < 0) {
pr("Ships, land units or planes only! (s, l, p)\n");
return RET_SYN;
}
if (!snxtitem(&ni, type, player->argp[2], NULL))
return RET_SYN;
if ((p =
getstarg(player->argp[3],
"Mission (int, sup, osup, dsup, esc, res, air, query, clear)? ",
buf)) == 0)
return RET_SYN;
/*
* 'i' interdiction
* 's' support
* 'o' support attacks
* 'd' support defenders
* 'e' escort
* 'r' defensive reserve
* 'a' air defense (intercepts)
*/
switch (*p) {
case 'I':
case 'i':
mission = MI_INTERDICT;
break;
case 'O':
case 'o':
mission = MI_OSUPPORT;
break;
case 'D':
case 'd':
mission = MI_DSUPPORT;
break;
case 'S':
case 's':
mission = MI_SUPPORT;
break;
case 'C':
case 'c':
mission = 0;
break;
case 'E':
case 'e':
mission = MI_ESCORT;
break;
case 'R':
case 'r':
mission = MI_RESERVE;
break;
case 'A':
case 'a':
mission = MI_AIR_DEFENSE;
break;
case 'q':
show_mission(type, &ni);
return RET_OK;
default:
pr("bad condition\n");
pr("i\tinterdiction (any)\n");
pr("s\tsupport (tactical planes only)\n");
pr("o\toffensive support (tactical planes only)\n");
pr("d\tdefensive support (tactical planes only)\n");
pr("r\treserve (land units only)\n");
pr("e\tescort (tactical or escort planes only)\n");
pr("a\tair defense (intercept planes only)\n");
pr("c\tclear mission\n");
pr("q\tquery\n");
return RET_SYN;
}
if (mission && !cando(mission, type)) {
pr("A %s cannot do that mission!\n", ef_nameof(type));
pr("i\tinterdiction (any)\n");
pr("s\tsupport (planes only)\n");
pr("o\toffensive support (planes only)\n");
pr("d\tdefensive support (planes only)\n");
pr("r\treserve (land units only)\n");
pr("e\tescort (planes only)\n");
pr("a\tair defense (planes only)\n");
return RET_FAIL;
}
if (mission) {
if ((p = getstarg(player->argp[4], "operations point? ", buf)) == 0
|| *p == 0)
return RET_SYN;
if (*p != '.') {
if (!sarg_xy(p, &x, &y))
return RET_SYN;
if (!getsect(x, y, &opsect))
return RET_FAIL;
}
} else {
x = 0;
y = 0;
}
if (player->argp[5] != NULL) {
desired_radius = atoi(player->argp[5]);
if (desired_radius < 0) {
pr("Radius must be greater than zero!\n");
return RET_FAIL;
}
} else {
desired_radius = 9999;
}
if ((mobmax = get_empobj_mob_max(type)) == -1)
return RET_FAIL;
mobused = ldround(mission_mob_cost * (double)mobmax, 1);
while (nxtitem(&ni, &item)) {
gp = (struct empobj *)&item;
if (!player->owner || gp->own == 0)
continue;
if ((mission && (gp->mobil < mobused)) && mission_mob_cost) {
pr("%s: not enough mobility! (needs %d)\n",
obj_nameof(gp), mobused);
continue;
}
if (mission == MI_RESERVE && !lnd_can_attack((struct lndstr *)gp)) {
pr("%s is not designed to fight ground troops\n",
obj_nameof(gp));
continue;
}
if (*p == '.') {
x = gp->x;
y = gp->y;
if (!getsect(x, y, &opsect))
return RET_FAIL;
}
dist = mapdist(gp->x, gp->y, x, y);
radius = 999;
if (mission) {
radius = oprange(gp, mission);
if (radius < dist) {
pr("%s: out of range! (range %d)\n",
obj_nameof(gp), radius);
continue;
}
}
if (radius > desired_radius)
radius = desired_radius;
if ((mission == MI_INTERDICT) && (type == EF_SHIP))
if (mchr[(int)gp->type].m_glim == 0) {
pr("%s: cannot fire at range!\n", obj_nameof(gp));
continue;
}
if ((mission == MI_INTERDICT) && (type == EF_LAND))
if (lchr[(int)gp->type].l_dam == 0) {
pr("%s: cannot fire at range!\n", obj_nameof(gp));
continue;
}
if ((mission == MI_INTERDICT) && (type == EF_PLANE)) {
struct plchrstr *pcp;
pcp = &plchr[(int)gp->type];
if (!(pcp->pl_flags & P_T)) {
pr("Only planes with the tactical ability can interdict.\n"
"%s #%d is ineligible\n",
pcp->pl_name, gp->uid);
continue;
}
}
if ((mission == MI_AIR_DEFENSE) && (type == EF_PLANE)) {
struct plchrstr *pcp;
pcp = &plchr[(int)gp->type];
if (!(pcp->pl_flags & P_F)) {
pr("Only planes with the intercept abilities can perform air defense.\n"
"%s #%d is ineligible\n",
pcp->pl_name, gp->uid);
continue;
}
}
if ((mission == MI_ESCORT) && (type == EF_PLANE)) {
struct plchrstr *pcp;
pcp = &plchr[(int)gp->type];
if (!(pcp->pl_flags & P_ESC) && !(pcp->pl_flags & P_F)) {
pr("Only planes with the escort or intercept abilities can escort.\n"
"%s #%d is ineligible\n",
pcp->pl_name, gp->uid);
continue;
}
}
if ((mission == MI_SUPPORT || mission == MI_OSUPPORT ||
mission == MI_DSUPPORT) && (type == EF_PLANE)) {
struct plchrstr *pcp;
pcp = &plchr[(int)gp->type];
if (!(pcp->pl_flags & P_T)) {
pr("Only planes with the tactical ability can support.\n"
"%s #%d is ineligible\n",
pcp->pl_name, gp->uid);
continue;
}
}
num++; /* good one.. go with it */
if (mission) {
pr("%s on %s mission, centered on %s, radius %d\n",
obj_nameof(gp), mission_name(mission),
xyas(x, y, player->cnum), radius);
gp->mobil -= mobused;
gp->radius = radius;
} else
gp->radius = 0;
gp->mission = mission;
gp->opx = x;
gp->opy = y;
put_empobj(type, gp->uid, gp);
}
if (num == 0) {
pr("No %s%s\n", ef_nameof(type), splur(num));
return RET_FAIL;
}
pr("%d %s%s\n", num, ef_nameof(type), splur(num));
return RET_OK;
}