/*
* Empire - A multi-player, client/server Internet based war game.
- * Copyright (C) 1986-2007, Dave Pare, Jeff Bailey, Thomas Ruschak,
+ * Copyright (C) 1986-2009, Dave Pare, Jeff Bailey, Thomas Ruschak,
* Ken Stevens, Steve McClure
*
* This program is free software; you can redistribute it and/or modify
* ---
*
* mission.c: Mission subroutines for planes/ships/units
- *
+ *
* Known contributors to this file:
* Ken Stevens, 1995
* Steve McClure, 1996-2000
+ * Markus Armbruster, 2003-2009
*/
#include <config.h>
#include <stdlib.h>
-#include "damage.h"
#include "empobj.h"
#include "file.h"
#include "item.h"
static void divide(struct emp_qelem *, struct emp_qelem *, coord, coord);
static int dosupport(struct genlist *, coord, coord, natid, natid);
static int find_airport(struct emp_qelem *, coord, coord);
-static int mission_pln_arm(struct emp_qelem *, coord, coord, int,
- int, struct ichrstr *, int, int, int *);
+static void mission_pln_arm(struct emp_qelem *, coord, coord, int,
+ int, struct ichrstr *);
static void mission_pln_sel(struct emp_qelem *, int, int, int);
static int perform_mission(coord, coord, natid, struct emp_qelem *, int,
char *, int);
cname(cn), newdam);
}
if (dam) {
- collateral_damage(x, y, dam, 0);
+ collateral_damage(x, y, dam);
}
return dam;
}
int
-collateral_damage(coord x, coord y, int dam, struct emp_qelem *list)
+collateral_damage(coord x, coord y, int dam)
{
int coll;
struct sctstr sect;
return 0;
mpr(sect.sct_own, "%s takes %d%% collateral damage\n",
xyas(x, y, sect.sct_own), coll);
- sectdamage(§, coll, list);
+ sectdamage(§, coll);
putsect(§);
return coll;
}
}
}
if (dam) {
- collateral_damage(x, y, dam, 0);
+ collateral_damage(x, y, dam);
}
return dam;
}
struct genlist *glp;
struct empobj *gp;
union empobj_storage item;
- int dist;
- int radius;
int relat;
struct sctstr sect;
} else if (relat > HOSTILE)
continue;
- dist = mapdist(x, y, gp->opx, gp->opy);
-
- radius = gp->radius;
- if (mission != MI_RESERVE) /* XXX */
- oprange(gp, &radius);
-
- if (dist > radius)
- continue;
-
- /* Ok, it is within the operations range. */
- /* Now check from where the object actually is */
- dist = mapdist(x, y, gp->x, gp->y);
- radius = 999;
- oprange(gp, &radius);
- if (dist > radius)
+ if (!in_oparea(gp, x, y))
continue;
- /* Ok, the object can get to where the x,y is */
if (opt_SLOW_WAR) {
if (mission != MI_AIR_DEFENSE) {
if (getrel(getnatp(gp->own), sect.sct_own) > AT_WAR) {
/*
- * If the player->owner of the unit isn't at war
+ * If the owner of the unit isn't at war
* with the victim, and doesn't own the
* sect being acted upon, and isn't the
- * old player->owner of that sect, bounce them.
+ * old owner of that sect, bounce them.
*/
if (sect.sct_type != SCT_WATER &&
sect.sct_own != gp->own &&
struct nstr_item ni;
struct plist *plp;
struct plnstr plane;
- int dist;
snxtitem_all(&ni, EF_PLANE);
while (nxtitem(&ni, &plane)) {
if (plane.pln_own != cn)
continue;
-
if (plane.pln_mission != MI_ESCORT)
continue;
-
- dist = mapdist(x, y, plane.pln_x, plane.pln_y);
- if (dist > plane.pln_range / 2)
+ if (!in_oparea((struct empobj *)&plane, x, y))
continue;
-
plp = malloc(sizeof(struct plist));
memset(plp, 0, sizeof(struct plist));
plp->pcp = &plchr[(int)plane.pln_type];
struct sctstr sect;
struct mchrstr *mcp;
struct plchrstr *pcp;
- int dam = 0, dam2, mission_flags, tech;
+ int dam = 0, dam2;
natid plane_owner = 0;
- int gun, shell, md, range, air_dam = 0;
- double prb, hitchance, vrange;
+ int md, range, air_dam, sublaunch;
+ double hitchance, vrange;
+ int targeting_ships = *s == 's'; /* "subs" or "ships" FIXME gross! */
getsect(x, y, §);
if (glp->thing->ef_type == EF_LAND) {
lp = (struct lndstr *)glp->thing;
- if (lp->lnd_effic < LAND_MINFIREEFF)
- continue;
-
if (mission == MI_SINTERDICT)
continue;
(md > land_max_interdiction_range))
continue;
- if ((lp->lnd_ship != -1) || (lp->lnd_land != -1))
- continue;
-
- if (lp->lnd_item[I_MILIT] < 1)
- continue;
-
- range = roundrange(effrange(lp->lnd_frg, lp->lnd_tech));
+ range = roundrange(lnd_fire_range(lp));
if (md > range)
continue;
- shell = lp->lnd_item[I_SHELL];
- gun = lp->lnd_item[I_GUN];
- if (shell == 0 || gun == 0)
+ dam2 = lnd_fire(lp);
+ putland(lp->lnd_uid, lp);
+ if (dam2 < 0)
continue;
- if (has_supply(lp)) {
- use_supply(lp);
- putland(lp->lnd_uid, lp);
- dam2 = ldround(landunitgun(lp->lnd_effic, lp->lnd_dam, gun,
- lp->lnd_ammo, shell), 1);
- if (sect.sct_type == SCT_WATER) {
- if (chance(lp->lnd_acc / 100.0))
- dam2 = ldround(dam2 / 2.0, 1);
- }
- dam += dam2;
- if (sect.sct_type == SCT_WATER)
- nreport(lp->lnd_own, N_SHP_SHELL, victim, 1);
- else
- nreport(lp->lnd_own, N_SCT_SHELL, victim, 1);
- wu(0, lp->lnd_own,
- "%s fires at %s %s at %s\n",
- prland(lp), cname(victim), s, xyas(x, y, lp->lnd_own));
-
- mpr(victim, "%s %s fires at you at %s\n",
- cname(lp->lnd_own), prland(lp), xyas(x, y, victim));
+ if (targeting_ships) {
+ if (chance(lnd_acc(lp) / 100.0))
+ dam2 = ldround(dam2 / 2.0, 1);
}
+ dam += dam2;
+ if (targeting_ships)
+ nreport(lp->lnd_own, N_SHP_SHELL, victim, 1);
+ else
+ nreport(lp->lnd_own, N_SCT_SHELL, victim, 1);
+ wu(0, lp->lnd_own,
+ "%s fires at %s %s at %s\n",
+ prland(lp), cname(victim), s, xyas(x, y, lp->lnd_own));
+
+ mpr(victim, "%s %s fires at you at %s\n",
+ cname(lp->lnd_own), prland(lp), xyas(x, y, victim));
} else if (glp->thing->ef_type == EF_SHIP) {
sp = (struct shpstr *)glp->thing;
mcp = glp->cp;
- if (sp->shp_effic < 60)
- continue;
- if (sp->shp_frnge == 0)
- continue;
if (((mission == MI_INTERDICT) ||
(mission == MI_SINTERDICT)) &&
(md > ship_max_interdiction_range))
continue;
- if (sp->shp_item[I_MILIT] < 1)
- continue;
-/*
- if ((mcp->m_flags & M_SUB) &&
- (sect.sct_type != SCT_WATER))
- continue;
-*/
if (mission == MI_SINTERDICT) {
if (!(mcp->m_flags & M_SONAR))
continue;
continue;
}
if (mcp->m_flags & M_SUB) {
-/* If we aren't shooting at "subs" or "ships" don't fire at all from
- a sub. */
- if (*s != 's')
- continue;
- if (sp->shp_mobil < 0)
- continue;
- gun = sp->shp_item[I_GUN];
- if (gun < 1)
- continue;
- shell = sp->shp_item[I_SHELL];
- if (shell < SHP_TORP_SHELLS)
- shell += supply_commod(sp->shp_own,
- sp->shp_x, sp->shp_y, I_SHELL,
- SHP_TORP_SHELLS - shell);
- if (shell < SHP_TORP_SHELLS)
- continue;
-
+ if (!targeting_ships)
+ continue; /* subs interdict only ships */
range = roundrange(torprange(sp));
if (md > range)
continue;
-
if (!line_of_sight(NULL, x, y, gp->x, gp->y))
continue;
- sp->shp_item[I_SHELL] = shell - SHP_TORP_SHELLS;
- sp->shp_mobil -= shp_mobcost(sp) / 2.0;
+ dam2 = shp_torp(sp, 1);
putship(sp->shp_uid, sp);
- hitchance = DTORP_HITCHANCE(md, sp->shp_visib);
+ if (dam2 < 0)
+ continue;
+ hitchance = shp_torp_hitchance(sp, md);
wu(0, sp->shp_own,
"%s locking on %s %s in %s\n",
"\tWhooosh... Hitchance = %d%%\n",
(int)(hitchance * 100));
- if (hitchance < 1.0 && !chance(hitchance)) {
+ if (!chance(hitchance)) {
wu(0, sp->shp_own, "\tMissed\n");
mpr(victim,
"Incoming torpedo sighted @ %s missed (whew)!\n",
continue;
}
wu(0, sp->shp_own, "\tBOOM!...\n");
- dam2 = TORP_DAMAGE();
-
dam += dam2;
nreport(victim, N_TORP_SHIP, 0, 1);
wu(0, sp->shp_own,
"Incoming torpedo sighted @ %s hits and does %d damage!\n",
xyas(x, y, victim), dam2);
} else {
- range = roundrange(effrange(sp->shp_frnge, sp->shp_tech));
+ range = roundrange(shp_fire_range(sp));
if (md > range)
continue;
- gun = sp->shp_item[I_GUN];
- gun = MIN(gun, sp->shp_glim);
- shell = sp->shp_item[I_SHELL];
- if (shell < gun)
- shell += supply_commod(sp->shp_own,
- sp->shp_x, sp->shp_y, I_SHELL,
- gun - shell);
- gun = MIN(gun, shell);
- gun = MIN(gun, sp->shp_item[I_MILIT] / 2.0);
- if (gun == 0)
- continue;
- gun = MAX(gun, 1);
- dam2 = seagun(sp->shp_effic, gun);
- if (range == 0.0)
- prb = 1.0;
+ if (mission == MI_SINTERDICT)
+ dam2 = shp_dchrg(sp);
else
- prb = (double)md / range;
- prb *= prb;
- if (chance(prb))
- dam2 /= 2;
+ dam2 = shp_fire(sp);
+ putship(sp->shp_uid, sp);
+ if (dam2 < 0)
+ continue;
dam += dam2;
- if (sect.sct_type == SCT_WATER)
+ if (targeting_ships)
nreport(sp->shp_own, N_SHP_SHELL, victim, 1);
else
nreport(sp->shp_own, N_SCT_SHELL, victim, 1);
mpr(victim, "%s %s fires at you at %s\n",
cname(sp->shp_own), prship(sp), xyas(x, y, victim));
-
- sp->shp_item[I_SHELL] = shell - gun;
- putship(sp->shp_uid, sp);
}
} else if (glp->thing->ef_type == EF_PLANE) {
pcp = glp->cp;
else
emp_insque(&plp->queue, &bombers);
plane_owner = plp->plane.pln_own;
+ } else {
+ CANT_REACH();
+ break;
}
}
- if (!QEMPTY(&missiles)) {
- /* I arbitrarily chose 100 mindam -KHS */
- dam +=
- msl_launch_mindam(&missiles, x, y, hardtarget, EF_SECTOR, 100,
- "sector", victim, mission);
- qp = missiles.q_forw;
- while (qp != (&missiles)) {
- newqp = qp->q_forw;
- emp_remque(qp);
- free(qp);
- qp = newqp;
+
+ /*
+ * Missiles, except for interdiction of ships or land units,
+ * because that happens elsewhere, in shp_missile_interdiction()
+ * and lnd_missile_interdiction().
+ */
+ air_dam = 0;
+ for (qp = missiles.q_back; qp != &missiles; qp = newqp) {
+ newqp = qp->q_back;
+ plp = (struct plist *)qp;
+
+ if (air_dam < 100
+ && !CANT_HAPPEN(hardtarget != SECT_HARDTARGET
+ || (plp->pcp->pl_flags & P_MAR))
+ && mission_pln_equip(plp, NULL, 'p') >= 0) {
+ if (msl_launch(&plp->plane, EF_SECTOR, "sector", x, y, victim,
+ &sublaunch) < 0)
+ goto use_up_msl;
+ if (!msl_hit(&plp->plane, SECT_HARDTARGET, EF_SECTOR,
+ N_SCT_MISS, N_SCT_SMISS, sublaunch, victim))
+ CANT_REACH();
+ dam2 = pln_damage(&plp->plane, 'p', 1);
+ air_dam += dam2;
+ use_up_msl:
+ plp->plane.pln_effic = 0;
+ putplane(plp->plane.pln_uid, &plp->plane);
}
+ emp_remque(qp);
+ free(qp);
}
+ dam += air_dam;
if (QEMPTY(&bombers)) {
qp = list->q_forw;
add_airport(&airp, plp->plane.pln_x, plp->plane.pln_y);
}
+ air_dam = 0;
for (qp = airp.q_forw; qp != (&airp); qp = qp->q_forw) {
struct airport *air;
char buf[512];
/* Split off the escorts at this base into e */
divide(&escorts, &e, air->x, air->y);
- tech = 0;
- mission_flags = 0;
- mission_flags |= P_X; /* stealth (shhh) */
- mission_flags |= P_H; /* gets turned off if not all choppers */
-
- mission_flags = mission_pln_arm(&b, air->x, air->y, 2 * md, 'p', 0,
- 0, mission_flags, &tech);
+ mission_pln_arm(&b, air->x, air->y, 2 * md, 'p', NULL);
if (QEMPTY(&b))
continue;
- mission_flags = mission_pln_arm(&e, air->x, air->y, 2 * md, 'p', 0,
- P_F | P_ESC, mission_flags, &tech);
+ mission_pln_arm(&e, air->x, air->y, 2 * md, 'e', NULL);
pp = BestAirPath(buf, air->x, air->y, x, y);
if (CANT_HAPPEN(!pp))
continue;
- wu(0, plane_owner, "Flying %s mission from %s\n",
- mission_name(mission), xyas(air->x, air->y, plane_owner));
+ wu(0, plane_owner, "Flying %s mission from %s to %s\n",
+ mission_name(mission),
+ xyas(air->x, air->y, plane_owner),
+ xyas(x, y, plane_owner));
if (air->own && (air->own != plane_owner)) {
- wu(0, air->own, "%s is flying %s mission from %s\n",
+ wu(0, air->own, "%s is flying %s mission from %s to %s\n",
cname(plane_owner), mission_name(mission),
- xyas(air->x, air->y, air->own));
+ xyas(air->x, air->y, air->own),
+ xyas(x, y, air->own));
}
- ac_encounter(&b, &e, air->x, air->y, pp, mission_flags, 0, 0, 0);
+ ac_encounter(&b, &e, air->x, air->y, pp, 0);
if (!QEMPTY(&b))
air_dam +=
if (air_dam > 0) {
dam += air_dam;
- if (sect.sct_type == SCT_WATER)
+ if (targeting_ships)
nreport(plane_owner, N_SHP_BOMB, victim, 1);
else
nreport(plane_owner, N_SCT_BOMB, victim, 1);
}
char *
-mission_name(short mission)
+mission_name(int mission)
{
switch (mission) {
case MI_INTERDICT:
case MI_SUPPORT:
return "a support";
case MI_OSUPPORT:
- return "a offensive support";
+ return "an offensive support";
case MI_DSUPPORT:
return "a defensive support";
case MI_RESERVE:
case MI_AIR_DEFENSE:
return "an air defense";
}
+ CANT_REACH();
return "a mysterious";
}
-void
-show_mission(int type, struct nstr_item *np)
-{
- int first = 1, radius;
- union empobj_storage item;
- struct empobj *gp;
-
- while (nxtitem(np, &item)) {
- gp = (struct empobj *)&item;
- if (!player->owner || gp->own == 0)
- continue;
-
- if (first) {
- pr("Thing x,y op-sect rad mission\n");
- first = 0;
- }
- pr("%-25s", obj_nameof(gp));
- prxy(" %3d,%-3d", gp->x, gp->y, player->cnum);
- if (gp->mission == MI_INTERDICT || gp->mission == MI_SUPPORT ||
- gp->mission == MI_OSUPPORT ||
- gp->mission == MI_DSUPPORT || gp->mission == MI_AIR_DEFENSE) {
- radius = 999;
- oprange(gp, &radius);
- prxy(" %3d,%-3d", gp->opx, gp->opy, player->cnum);
- if (radius < gp->radius)
- pr(" %4d", radius);
- else
- pr(" %4d", gp->radius);
- } else if (gp->mission == MI_RESERVE) {
- struct sctstr sect;
- int plus = 2;
-
- getsect(gp->x, gp->y, §);
- if ((sect.sct_type == SCT_HEADQ) && (sect.sct_effic >= 60))
- plus++;
-
- if (item.land.lnd_rad_max == 0)
- plus = 0;
- else
- plus += item.land.lnd_rad_max;
- prxy(" %3d,%-3d", gp->x, gp->y, player->cnum);
- pr(" %4d", plus);
- } else if (gp->mission == MI_ESCORT) {
- pr(" ");
- pr(" %4d", item.plane.pln_range / 2);
- } else
- pr(" ");
- if (gp->mission)
- pr(" is on %s mission\n", mission_name(gp->mission));
- else
- pr(" has no mission.\n");
- }
-}
-
+/*
+ * Maximum distance GP can perform its mission.
+ * Note: this has nothing to do with the radius of the op-area.
+ * oprange() governs where the unit *can* strike, the op-area governs
+ * where the player wants it to strike.
+ */
int
-oprange(struct empobj *gp, int *radius)
+oprange(struct empobj *gp)
{
- int range;
-
switch (gp->ef_type) {
case EF_SHIP:
- range = ldround(effrange(((struct shpstr *)gp)->shp_frnge,
- ((struct shpstr *)gp)->shp_tech), 1);
- break;
+ return ldround(shp_fire_range((struct shpstr *)gp), 1);
case EF_LAND:
- range = ldround(effrange(((struct lndstr *)gp)->lnd_frg,
- ((struct lndstr *)gp)->lnd_tech), 1);
- break;
+ if (gp->mission == MI_RESERVE)
+ return lnd_reaction_range((struct lndstr *)gp);
+ return ldround(lnd_fire_range((struct lndstr *)gp), 1);
case EF_PLANE:
/* missiles go one way, so we can use all the range */
if (plchr[(int)gp->type].pl_flags & P_M)
- range = ((struct plnstr *)gp)->pln_range;
- else
- range = ((struct plnstr *)gp)->pln_range / 2;
- break;
- default:
- CANT_HAPPEN("bad TYPE");
- range = -1;
+ return ((struct plnstr *)gp)->pln_range;
+ return ((struct plnstr *)gp)->pln_range / 2;
}
-
- if (*radius > range)
- *radius = range;
-
- return range;
+ CANT_REACH();
+ return -1;
}
-static int
-mission_pln_airbase_ok(struct plnstr *pp)
+/*
+ * Does GP's mission op area cover X,Y?
+ */
+int
+in_oparea(struct empobj *gp, coord x, coord y)
{
- struct shpstr ship;
- struct lndstr land;
- struct sctstr sect;
- struct plchrstr *pcp = plchr + pp->pln_type;
-
- if (pp->pln_ship >= 0) {
- if (!getship(pp->pln_ship, &ship)) {
- CANT_REACH();
- return 0;
- }
- if (CANT_HAPPEN(ship.shp_effic < SHIP_MINEFF
- || !could_be_on_ship(pp, &ship)))
- return 0;
-
- if (ship.shp_own != pp->pln_own
- && getrel(getnatp(ship.shp_own), pp->pln_own) != ALLIED) {
- return 0;
- }
- if (ship.shp_effic < SHP_AIROPS_EFF)
- return 0;
-
- } else if (pp->pln_land >= 0) {
- if (!getland(pp->pln_land, &land)) {
- CANT_REACH();
- return 0;
- }
- if (CANT_HAPPEN(land.lnd_effic < LAND_MINEFF
- || !(pcp->pl_flags & P_E)))
- return 0;
-
- if (land.lnd_own != pp->pln_own
- && getrel(getnatp(land.lnd_own), pp->pln_own) != ALLIED)
- return 0;
- if (land.lnd_effic < LND_AIROPS_EFF)
- return 0;
- if (land.lnd_ship >= 0 || land.lnd_land >= 0) {
- return 0;
- }
-
- } else {
- if (!getsect(pp->pln_x, pp->pln_y, §)) {
- CANT_REACH();
- return 0;
- }
- /* First, check allied status */
- /* Can't fly from non-owned sectors or non-allied sectors */
- if ((sect.sct_own != pp->pln_own) &&
- (getrel(getnatp(sect.sct_own), pp->pln_own) != ALLIED)) {
- return 0;
- }
- /* non-vtol plane */
- if ((pcp->pl_flags & P_V) == 0) {
- if ((sect.sct_type != SCT_AIRPT) || (sect.sct_effic < 40)) {
- return 0;
- }
- }
- }
-
- return 1;
+ return mapdist(x, y, gp->opx, gp->opy) <= gp->radius
+ && mapdist(x, y, gp->x, gp->y) <= oprange(gp);
}
/*
struct plnstr *pp;
struct plchrstr *pcp;
struct plist *plp;
- int y, bad, bad1;
- unsigned x;
for (qp = list->q_forw; qp != list; qp = next) {
next = qp->q_forw;
continue;
}
- if (!mission_pln_airbase_ok(pp)) {
+ if (!pln_airbase_ok(pp, 0, 0)) {
emp_remque(qp);
free(qp);
continue;
}
-
+
if (pcp->pl_flags & P_A) {
if (roll(100) > pln_identchance(pp, hardtarget, EF_SHIP)) {
emp_remque(qp);
/*
* Arm only the planes at x,y
*/
-static int
+static void
mission_pln_arm(struct emp_qelem *list, coord x, coord y, int dist,
- int mission, struct ichrstr *ip, int flags,
- int mission_flags, int *tech)
+ int mission, struct ichrstr *ip)
{
struct emp_qelem *qp;
struct emp_qelem *next;
struct plist *plp;
+ struct plnstr *pp;
- if (*tech == 0)
- *tech = 9999;
for (qp = list->q_forw; qp != list; qp = next) {
next = qp->q_forw;
plp = (struct plist *)qp;
+ pp = &plp->plane;
- if (plp->plane.pln_x != x)
+ if (pp->pln_x != x)
continue;
- if (plp->plane.pln_y != y)
+ if (pp->pln_y != y)
continue;
- if (mission_pln_equip(plp, ip, flags, mission) < 0) {
+ if (CANT_HAPPEN(pp->pln_flags & PLN_LAUNCHED)
+ || mission_pln_equip(plp, ip, mission) < 0) {
emp_remque(qp);
free(qp);
continue;
}
- if (flags & (P_S | P_I)) {
- if (plp->pcp->pl_flags & P_S)
- mission_flags |= P_S;
- if (plp->pcp->pl_flags & P_I)
- mission_flags |= P_I;
- }
- if (*tech > plp->plane.pln_tech)
- *tech = plp->plane.pln_tech;
- if (!(plp->pcp->pl_flags & P_H))
- /* no stealth on this mission */
- mission_flags &= ~P_H;
- if (!(plp->pcp->pl_flags & P_X))
- /* no stealth on this mission */
- mission_flags &= ~P_X;
- if (!(plp->pcp->pl_flags & P_A)) {
- /* no asw on this mission */
- mission_flags &= ~P_A;
- }
- if (!(plp->pcp->pl_flags & P_MINE)) {
- /* no asw on this mission */
- mission_flags &= ~P_MINE;
- }
-
- /*
- * Mob costs for missions are 1/2 normal
- * Not anymore. :)
- */
-/* plp->plane.pln_mobil -= pln_mobcost(dist,&plp->plane,flags)/2;*/
- plp->plane.pln_mobil -= pln_mobcost(dist, &plp->plane, flags);
+ pp->pln_flags |= PLN_LAUNCHED;
+ pp->pln_mobil -= pln_mobcost(dist, pp, mission);
+ putplane(pp->pln_uid, pp);
}
- return mission_flags;
}
int
-mission_pln_equip(struct plist *plp, struct ichrstr *ip, int flags,
- char mission)
+mission_pln_equip(struct plist *plp, struct ichrstr *ip, char mission)
{
struct plchrstr *pcp;
struct plnstr *pp;
- int needed;
+ int load, needed;
struct lndstr land;
struct shpstr ship;
struct sctstr sect;
i_type itype;
- int rval;
short *item;
pp = &plp->plane;
return -1;
}
item[I_PETROL] -= pcp->pl_fuel;
- rval = 0;
- if (!(flags & P_F)) {
- itype = I_NONE;
- needed = 0;
- switch (mission) {
- case 's':
- case 'p':
- if (pp->pln_nuketype == -1) {
- itype = I_SHELL;
- needed = pp->pln_load;
- }
- break;
- case 't':
- if ((pcp->pl_flags & P_C) == 0 || ip == 0)
- break;
- itype = ip->i_uid;
- needed = (pp->pln_load * 2) / ip->i_lbs;
- break;
- case 'd':
- if ((pcp->pl_flags & P_C) == 0 || ip == 0)
- break;
- itype = ip->i_uid;
- needed = (pp->pln_load * 2) / ip->i_lbs;
- break;
- case 'a':
- if ((pcp->pl_flags & (P_V | P_C)) == 0)
- break;
- itype = I_MILIT;
- needed = pp->pln_load / ip->i_lbs;
- break;
- case 'n':
- if (pp->pln_nuketype == -1)
- rval = -1;
- break;
- case 'i': /* missile interception */
- if (pp->pln_load) {
- itype = I_SHELL;
- needed = pp->pln_load;
- }
- break;
- default:
- break;
- }
- if (rval < 0 || (itype != I_NONE && needed <= 0)) {
+ load = pln_load(pp);
+ itype = I_NONE;
+ switch (mission) {
+ case 'p': /* pinpoint bomb */
+ itype = I_SHELL;
+ break;
+ case 'i': /* missile interception */
+ if (load)
+ itype = I_SHELL;
+ break;
+ case 'e': /* escort */
+ case 0: /* plane interception */
+ load = 0;
+ break;
+ default:
+ CANT_REACH();
+ load = 0;
+ }
+
+ if (itype != I_NONE) {
+ needed = load / ichr[itype].i_lbs;
+ if (needed <= 0)
return -1;
+ if (CANT_HAPPEN(nuk_on_plane(pp) >= 0))
+ return -1;
+ if (itype == I_SHELL && item[itype] < needed) {
+ if (pp->pln_ship >= 0)
+ shp_supply(&ship, I_SHELL, needed);
+ else if (pp->pln_land >= 0)
+ lnd_supply(&land, I_SHELL, needed);
+ else
+ sct_supply(§, I_SHELL, needed);
}
- if (itype != I_NONE) {
- if (itype == I_SHELL && item[itype] < needed)
- item[itype] += supply_commod(plp->plane.pln_own,
- plp->plane.pln_x,
- plp->plane.pln_y,
- I_SHELL, needed);
- if (item[itype] < needed)
- return -1;
- item[itype] -= needed;
- }
- if (itype == I_SHELL && (mission == 's' || mission == 'p'))
- plp->bombs = needed;
- else
- plp->misc = needed;
+ if (item[itype] < needed)
+ return -1;
+ item[itype] -= needed;
+ plp->load = needed;
}
+
if (pp->pln_ship >= 0)
putship(ship.shp_uid, &ship);
else if (pp->pln_land >= 0)
putland(land.lnd_uid, &land);
else
putsect(§);
- return rval;
+ return 0;
}
/*
struct plnstr *pp;
int newdam, dam = 0;
int hitchance;
- int nukedam;
for (qp = bombers->q_forw; qp != bombers; qp = qp->q_forw) {
plp = (struct plist *)qp;
if ((mission == MI_SINTERDICT) && !(plp->pcp->pl_flags & P_A))
continue;
- if (!plp->bombs)
+ if (!plp->load)
continue;
newdam = 0;
prplane(pp), cname(victim), s, xyas(x, y, pp->pln_own));
}
hitchance = pln_hitchance(pp, hardtarget, EF_SHIP);
- if (plp->plane.pln_nuketype != -1)
+ if (nuk_on_plane(&plp->plane) >= 0)
hitchance = 100;
else if (hardtarget != SECT_HARDTARGET)
wu(0, pp->pln_own, "\t\t%d%% hitchance...", hitchance);
- /* Always calculate damage */
if (roll(100) <= hitchance) {
- newdam = pln_damage(&plp->plane, x, y, 'p', &nukedam, 1);
- if (nukedam) {
- if (mission == MI_INTERDICT) {
- wu(0, pp->pln_own,
- "\t\tnuclear warhead on plane %s does %d damage to %s %s\n",
- prplane(pp), nukedam, cname(victim), s);
- dam += nukedam;
- }
- } else {
- wu(0, pp->pln_own,
- "\t\thit %s %s for %d damage\n",
- cname(victim), s, newdam);
- dam += newdam;
- }
+ newdam = pln_damage(&plp->plane, 'p', 1);
+ wu(0, pp->pln_own,
+ "\t\thit %s %s for %d damage\n",
+ cname(victim), s, newdam);
+ dam += newdam;
} else {
- newdam = pln_damage(&plp->plane, x, y, 'p', &nukedam, 0);
+ newdam = pln_damage(&plp->plane, 'p', 0);
wu(0, pp->pln_own, "missed\n");
if (mission == MI_SINTERDICT) {
mpr(victim,
}
/* Now, even though we missed, the bombs
land somewhere. */
- collateral_damage(x, y, newdam, bombers);
+ collateral_damage(x, y, newdam);
}
/* use up missiles */
return dam;
}
-
-/*
- * Check to see if anyone hostile to the victim
- * is running an air defense mission on this
- * sector. If so, do air combat
- */
-int
-air_defense(coord x, coord y, natid victim, struct emp_qelem *bomb_list,
- struct emp_qelem *esc_list)
-{
- int dam = 0, cn;
- int mission_flags, tech, combat = 0, rel, dist, z;
- struct emp_qelem *qp, interceptors, airp, i, empty, *next;
- struct plist *plp;
- struct genlist *glp;
- struct empobj *gp;
- struct genlist mi[MAXNOC];
- char buf[512];
- char *path;
- int count;
- int tcount;
-
- count = 0;
- for (qp = bomb_list->q_forw; qp != bomb_list; qp = qp->q_forw)
- count++;
- for (qp = esc_list->q_forw; qp != esc_list; qp = qp->q_forw)
- count++;
-
- memset(mi, 0, sizeof(mi));
- for (z = 1; z < MAXNOC; z++)
- emp_initque((struct emp_qelem *)&mi[z]);
-
- build_mission_list_type(mi, x, y, MI_AIR_DEFENSE, EF_PLANE, victim);
-
- for (cn = 1; cn < MAXNOC; cn++) {
- /* Check our relations */
- rel = getrel(getnatp(cn), victim);
-
- if (rel > HOSTILE)
- continue;
-
- if (QEMPTY(&mi[cn].queue))
- continue;
-
- /* Ok, make a list of all the interceptors. Note that this *copies* the
- * list from the mission creation. This list must be deleted later. */
- emp_initque(&interceptors);
- for (qp = mi[cn].queue.q_forw; qp != (&mi[cn].queue); qp = next) {
- next = qp->q_forw;
- glp = (struct genlist *)qp;
- gp = glp->thing;
-
- dist = mapdist(x, y, gp->x, gp->y);
-
- plp = malloc(sizeof(struct plist));
- memset(plp, 0, sizeof(struct plist));
- plp->pcp = glp->cp;
- memcpy(&plp->plane, glp->thing, sizeof(struct plnstr));
-
- /* missiles go one way, so we can use all the range */
- if (!(plp->pcp->pl_flags & P_M))
- dist *= 2;
- /* If it's out of range, free it and continue on */
- if (dist > plp->plane.pln_range) {
- free(plp);
- continue;
- }
- emp_insque(&plp->queue, &interceptors);
- }
-
- /* Remove those who cannot go */
- mission_pln_sel(&interceptors, P_F, 0, SECT_HARDTARGET);
-
- if (QEMPTY(&interceptors))
- continue;
-
- /* Now, delete all the extras, but delete the first ones, not the last ones, so
- * that the higher numbered planes go into battle (they should be the better ones
- * at fighting, if all went well.) */
- tcount = 0;
- for (qp = interceptors.q_forw; qp != (&interceptors);
- qp = qp->q_forw)
- tcount++;
- tcount -= count * 2;
- /* Just in case there are more incoming than we have */
- if (tcount < 0)
- tcount = 0;
- for (qp = interceptors.q_forw; qp != (&interceptors); qp = next) {
- next = qp->q_forw;
- if (tcount) {
- tcount--;
- /* Free it up and continue */
- emp_remque(qp);
- glp = (struct genlist *)qp;
- free(glp);
- }
- }
-
- /* Now, make a list of all the airports these planes are coming from */
- emp_initque(&airp);
- for (qp = interceptors.q_forw; qp != (&interceptors);
- qp = qp->q_forw) {
- plp = (struct plist *)qp;
- if (!find_airport(&airp, plp->plane.pln_x, plp->plane.pln_y))
- add_airport(&airp, plp->plane.pln_x, plp->plane.pln_y);
- }
-
- /* Now, fly them out one airport at a time */
- for (qp = airp.q_forw; qp != (&airp); qp = qp->q_forw) {
- struct airport *air;
-
- air = (struct airport *)qp;
- dist = mapdist(x, y, air->x, air->y);
-
- emp_initque(&i);
-
- /* Split off the interceptors at this base into i */
- divide(&interceptors, &i, air->x, air->y);
-
- tech = 0;
- mission_flags = 0;
- mission_flags |= P_X; /* stealth (shhh) */
- /* gets turned off if not all choppers */
- mission_flags |= P_H;
- sam_intercept(bomb_list, &i, cn, victim, x, y, 0);
- sam_intercept(esc_list, &i, cn, victim, x, y, 1);
-
- /* Did we run out of interceptors? */
- if (QEMPTY(&i))
- continue;
- /* Did we run out of bombers? */
- if (QEMPTY(bomb_list)) {
- /* Yes, so we have to put the rest of the interceptors back, and
- then continue, or we leak memory */
- pln_put(&i);
- continue;
- }
- mission_flags =
- mission_pln_arm(&i, air->x, air->y, 2 * dist, 'r', 0, P_F,
- mission_flags, &tech);
-
- /* Did we run out of interceptors? */
- if (QEMPTY(&i))
- continue;
- /* Did we run out of bombers? */
- if (QEMPTY(bomb_list)) {
- /* Yes, so we have to put the rest of the interceptors back, and
- then continue, or we leak memory */
- pln_put(&i);
- continue;
- }
-
- path = BestAirPath(buf, air->x, air->y, x, y);
- if (CANT_HAPPEN(!path))
- continue;
- wu(0, cn, "Flying %s mission from %s\n",
- mission_name(MI_AIR_DEFENSE), xyas(air->x, air->y, cn));
- if (air->own && (air->own != cn)) {
- wu(0, air->own, "%s is flying %s mission from %s\n",
- cname(cn), mission_name(MI_AIR_DEFENSE),
- xyas(air->x, air->y, air->own));
- }
-
- /* Now, fly the planes to the sector */
- emp_initque(&empty);
- ac_encounter(&i, &empty, air->x, air->y,
- path, mission_flags, 1, bomb_list, esc_list);
-
- /* If none made it, continue */
- if (QEMPTY(&i))
- continue;
-
- /* Some made it, so now they get to try to fight. */
- /* Intercept the escorts first */
- combat = 0;
- if (!QEMPTY(esc_list)) {
- mpr(victim, "%s air defense planes intercept!\n",
- cname(cn));
- ac_combat_headers(victim, cn);
- ac_airtoair(esc_list, &i);
- combat = 1;
- }
- /* Now intercept the bombers */
- if (!QEMPTY(bomb_list)) {
- if (!combat) {
- mpr(victim, "%s air defense planes intercept!\n",
- cname(cn));
- ac_combat_headers(victim, cn);
- }
- ac_airtoair(bomb_list, &i);
- PR(cn, "\n");
- PR(victim, "\n");
- }
-
- pln_put(&i);
- }
- }
-
- /* We have to free all of these, if they are still there, otherwise they get
- lost and we leak memory all over the place. */
- for (cn = 1; cn < MAXNOC; cn++) {
- /* free up all this memory if it's still there */
- for (qp = mi[cn].queue.q_forw; qp != (&mi[cn].queue); qp = next) {
- next = qp->q_forw;
- glp = (struct genlist *)qp;
- free(glp->thing);
- free(glp);
- }
- }
-
- return dam;
-}
projects / empserver / blobdiff