/*
* Empire - A multi-player, client/server Internet based war game.
- * Copyright (C) 1986-2004, Dave Pare, Jeff Bailey, Thomas Ruschak,
- * Ken Stevens, Steve McClure
+ * Copyright (C) 1986-2011, 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.
*
* ---
*
* laun.c: Launch missiles from land or sea
- *
+ *
* Known contributors to this file:
* Dave Pare, 1986
* Ken Stevens, 1995
* Steve McClure, 1998-2000
+ * Markus Armbruster, 2005-2009
*/
-#include "misc.h"
-#include "player.h"
-#include "xy.h"
-#include "sect.h"
-#include "plane.h"
-#include "news.h"
+#include <config.h>
+
+#include "commands.h"
+#include "damage.h"
#include "mission.h"
-#include "ship.h"
-#include "nsc.h"
-#include "nat.h"
-#include "path.h"
-#include "file.h"
+#include "news.h"
+#include "nuke.h"
#include "optlist.h"
-#include "damage.h"
-#include "commands.h"
+#include "path.h"
+#include "plane.h"
+#include "ship.h"
static int launch_as(struct plnstr *pp);
-static int launch_missile(struct plnstr *pp, int sublaunch);
-static int launch_sat(struct plnstr *pp, int sublaunch);
+static int launch_missile(struct plnstr *pp);
+static int launch_sat(struct plnstr *pp);
+static int msl_equip(struct plnstr *, char);
/*
* laun <PLANES>
{
struct nstr_item nstr;
struct plnstr plane;
- struct shpstr ship;
- struct sctstr sect;
- int sublaunch;
struct plchrstr *pcp;
- int rel;
- struct natstr *natp;
+ int retval, gone;
- if (!snxtitem(&nstr, EF_PLANE, player->argp[1]))
+ if (!snxtitem(&nstr, EF_PLANE, player->argp[1], NULL))
return RET_SYN;
- while (nxtitem(&nstr, (s_char *)&plane)) {
+ while (nxtitem(&nstr, &plane)) {
if (plane.pln_own != player->cnum)
continue;
pcp = &plchr[(int)plane.pln_type];
prplane(&plane));
continue;
}
- if ((plane.pln_flags & PLN_LAUNCHED) && (pcp->pl_flags & P_O)) {
+ if (pln_is_in_orbit(&plane)) {
pr("%s already in orbit!\n", prplane(&plane));
continue;
}
if (opt_MARKET) {
- if (ontradingblock(EF_PLANE, (int *)&plane)) {
+ if (ontradingblock(EF_PLANE, &plane)) {
pr("plane #%d inelligible - it's for sale.\n",
plane.pln_uid);
continue;
}
}
- sublaunch = 0;
- if (plane.pln_ship >= 0) {
- getship(plane.pln_ship, &ship);
- if (!ship.shp_own) {
- pr("%s: ship #%d was sunk!\n",
- prplane(&plane), ship.shp_uid);
- makelost(EF_PLANE, plane.pln_own, plane.pln_uid,
- plane.pln_x, plane.pln_y);
- plane.pln_own = 0;
- putplane(plane.pln_uid, &plane);
- continue;
- }
- natp = getnatp(ship.shp_own);
- rel = getrel(natp, player->cnum);
- if (ship.shp_own != player->cnum && rel != ALLIED) {
- pr("%s: you or an ally do not own ship #%d\n",
- prplane(&plane), ship.shp_uid);
- makelost(EF_PLANE, plane.pln_own, plane.pln_uid,
- plane.pln_x, plane.pln_y);
- plane.pln_own = 0;
- putplane(plane.pln_uid, &plane);
- continue;
- }
- if (mchr[(int)ship.shp_type].m_flags & M_SUB)
- sublaunch = 1;
- } else {
- sublaunch = 0;
- getsect(plane.pln_x, plane.pln_y, §);
- natp = getnatp(sect.sct_own);
- rel = getrel(natp, player->cnum);
- if (sect.sct_own && sect.sct_own != player->cnum
- && rel != ALLIED) {
- pr("%s: you or an ally do not own sector %s!\n",
- prplane(&plane), xyas(plane.pln_x, plane.pln_y,
- player->cnum));
- continue;
- }
- }
- if (plane.pln_effic < 60) {
+ if (plane.pln_effic < 40) {
pr("%s is damaged (%d%%)\n", prplane(&plane), plane.pln_effic);
continue;
}
+ if (!pln_airbase_ok(&plane, 1, 1))
+ continue;
pr("%s at %s; range %d, eff %d%%\n", prplane(&plane),
xyas(plane.pln_x, plane.pln_y, player->cnum),
plane.pln_range, plane.pln_effic);
if (!(pcp->pl_flags & P_O)) {
- if (launch_missile(&plane, sublaunch) < 0)
- continue;
+ retval = launch_missile(&plane);
+ gone = 1;
} else if ((pcp->pl_flags & (P_M | P_O)) == (P_M | P_O)) {
- if (launch_as(&plane) < 0) /* anti-sat */
- continue;
+ retval = launch_as(&plane);
+ gone = 1;
} else { /* satellites */
- if (launch_sat(&plane, sublaunch) < 0)
- continue;
+ retval = launch_sat(&plane);
+ gone = !(plane.pln_flags & PLN_LAUNCHED);
+ }
+ if (retval != RET_OK)
+ return retval;
+ if (gone) {
+ plane.pln_effic = 0;
+ putplane(plane.pln_uid, &plane);
}
- makelost(EF_PLANE, plane.pln_own, plane.pln_uid, plane.pln_x,
- plane.pln_y);
- plane.pln_own = 0;
- putplane(plane.pln_uid, &plane);
}
return RET_OK;
}
/*
- * Launch an anti-sat weapon.
- * Return -1 on failure, 0 on success (even if missile explodes).
+ * Launch anti-sat weapon PP.
+ * Return RET_OK if launched (even when missile explodes),
+ * else RET_SYN or RET_FAIL.
*/
-
static int
launch_as(struct plnstr *pp)
{
- coord sx, sy;
- s_char *cp, buf[1024];
+ char *cp, buf[1024];
struct plnstr plane;
- struct nstr_item ni;
- int goodtarget;
- int dam, nukedam;
- natid oldown;
- if (msl_equip(pp) < 0) {
- pr("%s not enough petrol or shells!\n", prplane(pp));
- return -1;
- }
- for (;;) {
- cp = getstarg(player->argp[2], "Target sector? ", buf);
- if (!check_plane_ok(pp))
- return -1;
- player->argp[2] = 0;
- if (!cp || !*cp)
- return -1;
- if (!sarg_xy(cp, &sx, &sy)) {
- pr("Bad sector designation; try again!\n");
- continue;
- }
- if (mapdist(pp->pln_x, pp->pln_y, sx, sy) > pp->pln_range) {
- pr("Range too great; try again!\n");
- continue;
- }
- break;
+ cp = getstarg(player->argp[2], "Target satellite? ", buf);
+ if (!check_plane_ok(pp))
+ return RET_FAIL;
+ if (!cp || !*cp)
+ return RET_SYN;
+ if (!getplane(atoi(cp), &plane) || !plane.pln_own
+ || !pln_is_in_orbit(&plane)) {
+ pr("No such satellite exists!\n");
+ return RET_FAIL;
+ /* Can be abused to find satellite ids. Tolerable. */
}
- goodtarget = 0;
- snxtitem_dist(&ni, EF_PLANE, sx, sy, 0);
- while (!goodtarget && nxtitem(&ni, &plane)) {
- if (!plane.pln_own)
- continue;
- if (!(plane.pln_flags & PLN_LAUNCHED))
- continue;
- goodtarget = 1;
+ if (mapdist(pp->pln_x, pp->pln_y, plane.pln_x, plane.pln_y)
+ > pp->pln_range) {
+ pr("Range too great!\n");
+ return RET_FAIL;
}
- if (!goodtarget) {
- pr("No satellites there!\n");
- return -1;
- }
- if (msl_hit(pp, plane.pln_def, EF_PLANE, N_SAT_KILL, N_SAT_KILL,
- prplane(&plane), sx, sy, plane.pln_own)) {
- dam = pln_damage(pp, sx, sy, 'p', &nukedam, 1);
- oldown = plane.pln_own;
- planedamage(&plane, dam);
- pr("Hit satellite for %d%% damage!\n", dam);
- mpr(oldown,
- "%s anti-sat did %d%% damage to %s over %s\n",
- cname(player->cnum), dam, prplane(&plane),
+ if (msl_equip(pp, 'i') < 0)
+ return RET_FAIL;
+ if (msl_launch(pp, EF_PLANE, prplane(&plane),
+ plane.pln_x, plane.pln_y, plane.pln_own, NULL) < 0)
+ return RET_OK;
+ if (msl_hit(pp, pln_def(&plane), EF_PLANE, 0, 0, 0, plane.pln_own)) {
+ pr("Satellite shot down\n");
+ mpr(plane.pln_own, "%s anti-sat destroyed %s over %s\n",
+ cname(player->cnum), prplane(&plane),
xyas(plane.pln_x, plane.pln_y, plane.pln_own));
+ nreport(pp->pln_own, N_SAT_KILL, plane.pln_own, 1);
+ plane.pln_effic = 0;
putplane(plane.pln_uid, &plane);
- if (!plane.pln_own)
- mpr(oldown, "Satellite shot down\n");
}
- return 0;
+ return RET_OK;
}
/*
- * Launch a missile
- * Return -1 on failure, 0 on success (even if missile explodes).
+ * Launch missile PP.
+ * Return RET_OK if launched (even when missile explodes),
+ * else RET_SYN or RET_FAIL.
*/
static int
-launch_missile(struct plnstr *pp, int sublaunch)
+launch_missile(struct plnstr *pp)
{
struct plchrstr *pcp = plchr + pp->pln_type;
coord sx, sy;
- int n, dam;
- s_char *cp;
+ int n, dam, sublaunch;
+ char *cp;
struct mchrstr *mcp;
struct shpstr target_ship;
struct sctstr sect;
- int nukedam;
- int rel;
- struct natstr *natp;
- s_char buf[1024];
+ struct nukstr nuke;
+ char buf[1024];
- for (;;) {
- if (pcp->pl_flags & P_MAR)
- cp = getstarg(player->argp[2], "Target ship? ", buf);
- else
- cp = getstarg(player->argp[2], "Target sector? ", buf);
- player->argp[2] = 0;
- if (!cp || !*cp)
- return -1;
- if (!check_plane_ok(pp))
- return -1;
- if (opt_PINPOINTMISSILE && sarg_type(cp) == NS_LIST) {
- if (!(pcp->pl_flags & P_MAR)) {
- pr("Missile not designed to attack ships!\n");
- continue;
- }
- n = atoi(cp);
- if ((n < 0) || !getship(n, &target_ship) ||
- !target_ship.shp_own) {
- pr("Bad ship number; try again!\n");
- continue;
- }
- sx = target_ship.shp_x;
- sy = target_ship.shp_y;
- mcp = &mchr[(int)target_ship.shp_type];
- if (mcp->m_flags & M_SUB) {
- pr("Bad ship number; try again!\n");
- continue;
- }
- } /* not PINPOINTMISSILE for ships */
- else if (!sarg_xy(cp, &sx, &sy)) {
- pr("That's no good! try again!\n");
- continue;
- } else if (opt_PINPOINTMISSILE) {
- if (pcp->pl_flags & P_MAR) {
- pr("Missile designed to attack ships!\n");
- continue;
- }
+ if (pcp->pl_flags & P_MAR)
+ cp = getstarg(player->argp[2], "Target ship? ", buf);
+ else
+ cp = getstarg(player->argp[2], "Target sector? ", buf);
+ if (!cp || !*cp)
+ return RET_SYN;
+ if (!check_plane_ok(pp))
+ return RET_FAIL;
+ if (sarg_type(cp) == NS_LIST) {
+ if (!(pcp->pl_flags & P_MAR)) {
+ pr("Missile not designed to attack ships!\n");
+ return RET_FAIL;
}
- /* end PINPOINTMISSILE */
- if (mapdist(pp->pln_x, pp->pln_y, sx, sy) > pp->pln_range) {
- pr("Range too great; try again!\n");
- continue;
+ n = atoi(cp);
+ if ((n < 0) || !getship(n, &target_ship) || !target_ship.shp_own) {
+ pr("Bad ship number!\n");
+ return RET_FAIL;
+ }
+ sx = target_ship.shp_x;
+ sy = target_ship.shp_y;
+ mcp = &mchr[(int)target_ship.shp_type];
+ if (mcp->m_flags & M_SUB) {
+ pr("Bad ship number!\n");
+ return RET_FAIL;
+ }
+ } else if (!sarg_xy(cp, &sx, &sy)) {
+ pr("Not a sector!\n");
+ return RET_FAIL;
+ } else {
+ if (pcp->pl_flags & P_MAR) {
+ pr("Missile designed to attack ships!\n");
+ return RET_FAIL;
}
- break;
}
- if (msl_equip(pp) < 0) {
- pr("%s not enough shells!\n", prplane(pp));
- return -1;
+
+ if (mapdist(pp->pln_x, pp->pln_y, sx, sy) > pp->pln_range) {
+ pr("Range too great; try again!\n");
+ return RET_FAIL;
}
- if (opt_PINPOINTMISSILE == 0 || !(pcp->pl_flags & P_MAR)) {
+ if (!(pcp->pl_flags & P_MAR)) {
+ if (msl_equip(pp, 's') < 0)
+ return RET_FAIL;
getsect(sx, sy, §);
- if (opt_SLOW_WAR) {
- natp = getnatp(player->cnum);
- rel = getrel(natp, sect.sct_own);
- if ((rel != AT_WAR) && (sect.sct_own != player->cnum) &&
- (sect.sct_own) && (sect.sct_oldown != player->cnum)) {
- pr("You are not at war with the player->owner of the target sector!\n");
- pr_beep();
- pr("Kaboom!!!\n");
- pr("Missile monitoring officer destroys RV before detonation.\n");
- return 0;
- }
- }
- if (!msl_hit(pp, SECT_HARDTARGET, EF_SECTOR, N_SCT_MISS,
- N_SCT_SMISS, "sector", sx, sy, sect.sct_own)) {
- /*
- dam = pln_damage(pp, sect.sct_x, sect.sct_y, 's', &nukedam, 0);
- collateral_damage(sect.sct_x, sect.sct_y, dam, 0);
- */
- return 0;
- }
- dam = pln_damage(pp, sect.sct_x, sect.sct_y, 's', &nukedam, 1);
- if (!nukedam) {
+ if (msl_launch(pp, EF_SECTOR, "sector", sx, sy, sect.sct_own,
+ &sublaunch) < 0)
+ return RET_OK;
+ getsect(sx, sy, §);
+ if (!msl_hit(pp, SECT_HARDTARGET, EF_SECTOR,
+ N_SCT_MISS, N_SCT_SMISS, sublaunch, sect.sct_own))
+ CANT_REACH();
+ if (getnuke(nuk_on_plane(pp), &nuke))
+ detonate(&nuke, sx, sy, pp->pln_flags & PLN_AIRBURST);
+ else {
+ dam = pln_damage(pp, 's', 1);
pr("did %d damage in %s\n", PERCENT_DAMAGE(dam),
xyas(sx, sy, player->cnum));
if (sect.sct_own != 0) {
cname(player->cnum), dam,
xyas(sx, sy, sect.sct_own));
}
- sectdamage(§, dam, 0);
+ sectdamage(§, dam);
putsect(§);
}
- } /* end PINPOINTMISSILE conditional */
- else if (opt_PINPOINTMISSILE) { /* else */
+ } else {
+ if (msl_equip(pp, 'p') < 0)
+ return RET_FAIL;
+ if (msl_launch(pp, EF_SHIP, prship(&target_ship),
+ target_ship.shp_x, target_ship.shp_y,
+ target_ship.shp_own, &sublaunch) < 0)
+ return RET_OK;
+ getship(n, &target_ship);
if (!msl_hit(pp, shp_hardtarget(&target_ship), EF_SHIP,
- N_SHP_MISS, N_SHP_SMISS, prship(&target_ship),
- target_ship.shp_x, target_ship.shp_y,
+ N_SHP_MISS, N_SHP_SMISS, sublaunch,
target_ship.shp_own)) {
pr("splash\n");
- /*
- dam = pln_damage(pp,target_ship.shp_x,target_ship.shp_y,'p',&nukedam, 0);
- collateral_damage(target_ship.shp_x, target_ship.shp_y, dam, 0);
- */
- return 0;
- }
- dam =
- pln_damage(pp, target_ship.shp_x, target_ship.shp_y, 'p',
- &nukedam, 1);
- if (!nukedam) {
- check_retreat_and_do_shipdamage(&target_ship, dam);
- if (target_ship.shp_effic < SHIP_MINEFF)
- pr("\t%s sunk!\n", prship(&target_ship));
- putship(target_ship.shp_uid, &target_ship);
+ dam = pln_damage(pp, 'p', 0);
+ collateral_damage(target_ship.shp_x, target_ship.shp_y, dam);
+ return RET_OK;
}
+ dam = pln_damage(pp, 'p', 1);
+ check_retreat_and_do_shipdamage(&target_ship, dam);
+ putship(target_ship.shp_uid, &target_ship);
getship(target_ship.shp_uid, &target_ship);
if (!target_ship.shp_own)
pr("%s sunk!\n", prship(&target_ship));
}
- /* end PINPOINTMISSILE */
- return 0;
+ return RET_OK;
}
/*
* Launch a satellite.
- * Return -1 on error, 0 on success (even if the satellite fails).
+ * Return RET_OK if launched (even when satellite fails),
+ * else RET_SYN or RET_FAIL.
*/
static int
-launch_sat(struct plnstr *pp, int sublaunch)
+launch_sat(struct plnstr *pp)
{
- struct plchrstr *pcp = plchr + pp->pln_type;
coord sx, sy;
int i;
int dist;
int dir;
- s_char *cp;
- s_char *p;
- s_char buf[1024];
+ char *cp;
+ char *p;
+ char buf[1024];
pr("\n");
- while (1) {
- cp = getstarg(player->argp[2], "Target sector? ", buf);
- if (!check_plane_ok(pp))
- return -1;
- player->argp[2] = 0;
- if (!cp || !*cp)
- return -1;
- if (!sarg_xy(cp, &sx, &sy)) {
- pr("Bad sector designation; try again!\n");
- continue;
- }
- if ((dist = mapdist(pp->pln_x, pp->pln_y, sx, sy)) > pp->pln_range) {
- pr("Range too great; try again!\n");
- continue;
- }
- break;
+ cp = getstarg(player->argp[2], "Target sector? ", buf);
+ if (!check_plane_ok(pp))
+ return RET_FAIL;
+ if (!cp || !*cp)
+ return RET_SYN;
+ if (!sarg_xy(cp, &sx, &sy)) {
+ pr("Bad sector designation!\n");
+ return RET_SYN;
+ }
+ if ((dist = mapdist(pp->pln_x, pp->pln_y, sx, sy)) > pp->pln_range) {
+ pr("Range too great; try again!\n");
+ return RET_FAIL;
}
p = getstring("Geostationary orbit? ", buf);
- if (p == 0)
- return -1;
+ if (!p)
+ return RET_SYN;
if (!check_plane_ok(pp))
- return -1;
+ return RET_FAIL;
+ if (msl_equip(pp, 'r') < 0)
+ return RET_FAIL;
pp->pln_theta = 0;
pp->pln_flags |= PLN_SYNCHRONOUS;
if (*p == 0 || *p == 'n')
pr("3... 2... 1... Blastoff!!!\n");
if (chance(0.07 + (100 - pp->pln_effic) / 100.0)) {
pr("KABOOOOM! Range safety officer detonates booster!\n");
- makelost(EF_PLANE, pp->pln_own, pp->pln_uid, pp->pln_x, pp->pln_y);
- pp->pln_own = 0;
- return 0;
+ pp->pln_effic = 0;
+ return RET_OK;
}
i = pp->pln_tech + pp->pln_effic;
if (chance(1.0 - (i / (i + 50.0)))) {
dir = (random() % 6) + 1;
- sx += diroff[dir][0];
- sy += diroff[dir][1];
+ sx = xnorm(sx + diroff[dir][0]);
+ sy = ynorm(sy + diroff[dir][1]);
pr("Your trajectory was a little off.\n");
}
nreport(player->cnum, N_LAUNCH, 0, 1);
- pr("%s positioned over %s", prplane(pp), xyas(sx, sy, player->cnum));
- if (msl_intercept(sx, sy, pp->pln_own, pcp->pl_def, sublaunch, P_O, 0)) {
- return 0;
- }
+ if (msl_asat_intercept(pp, sx, sy))
+ return RET_OK;
pp->pln_x = sx;
pp->pln_y = sy;
+ CANT_HAPPEN(pp->pln_flags & PLN_LAUNCHED);
pp->pln_flags |= PLN_LAUNCHED;
- pp->pln_mobil = (pp->pln_mobil > dist) ? (pp->pln_mobil - dist) : 0;
+ pp->pln_mobil = pp->pln_mobil > dist ? pp->pln_mobil - dist : 0;
putplane(pp->pln_uid, pp);
- pr(", will be ready for use in %d time units\n", 127 - pp->pln_mobil);
- return -1;
+ pr("%s positioned over %s, will be ready for use in %d time units\n",
+ prplane(pp), xyas(sx, sy, player->cnum),
+ plane_mob_max - pp->pln_mobil);
+ return RET_OK;
+}
+
+static int
+msl_equip(struct plnstr *pp, char mission)
+{
+ struct plist pl;
+
+ memset(&pl, 0, sizeof(struct plist));
+ pl.pcp = plchr + pp->pln_type;
+ pl.plane = *pp;
+ return pln_equip(&pl, NULL, mission);
}
projects / empserver / blobdiff