/*
* Empire - A multi-player, client/server Internet based war game.
- * Copyright (C) 1986-2009, Dave Pare, Jeff Bailey, Thomas Ruschak,
+ * Copyright (C) 1986-2010, Dave Pare, Jeff Bailey, Thomas Ruschak,
* Ken Stevens, Steve McClure
*
* This program is free software; you can redistribute it and/or modify
struct genlist {
struct emp_qelem queue; /* list of units */
- void *cp; /* pointer to desc of thing */
struct empobj *thing; /* thing's struct */
};
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);
+static int perform_mission_land(int, struct lndstr *, coord, coord,
+ natid, int, char *, int);
+static int perform_mission_ship(int, struct shpstr *, coord, coord,
+ natid, int, char *, int);
+static int perform_mission_msl(int, struct emp_qelem *, coord, coord,
+ natid, int);
+static int perform_mission_bomb(int, struct emp_qelem *, coord, coord,
+ natid, int, char *, int, int);
+static int perform_mission(coord, coord, natid, struct emp_qelem *,
+ int, char *, int);
+
+static int
+tally_dam(int dam, int newdam)
+{
+ return dam < 0 ? newdam : dam + newdam;
+}
/*
* Interdict commodities & transported planes
int cn;
int dam = 0, newdam, rel;
struct genlist mi[MAXNOC];
- int z;
memset(mi, 0, sizeof(mi));
- for (z = 1; z < MAXNOC; z++)
- emp_initque((struct emp_qelem *)&mi[z]);
+ for (cn = 1; cn < MAXNOC; cn++)
+ emp_initque((struct emp_qelem *)&mi[cn]);
build_mission_list(mi, x, y, MI_INTERDICT, victim);
newdam = perform_mission(x, y, victim, &mi[cn].queue,
MI_INTERDICT, s, SECT_HARDTARGET);
- dam += newdam;
- if (newdam)
+ if (newdam > 0) {
+ dam += newdam;
mpr(victim, "%s interdiction mission does %d damage!\n",
cname(cn), newdam);
+ }
}
if (dam) {
collateral_damage(x, y, dam);
{
struct emp_qelem *qp;
struct genlist *glp;
- struct mchrstr *mcp;
for (qp = list->q_forw; qp != list; qp = qp->q_forw) {
glp = (struct genlist *)qp;
if (glp->thing->ef_type != EF_SHIP)
return 0;
- mcp = glp->cp;
- if (!(mcp->m_flags & M_SUB))
+ if (!(mchr[glp->thing->type].m_flags & M_SUB))
return 0;
/* It's a sub! */
}
unit_interdict(coord x, coord y, natid victim, char *s, int hardtarget,
int mission)
{
- int cn;
- int dam = 0, newdam;
+ int cn, newdam, osubs;
+ int dam = -1;
struct genlist mi[MAXNOC];
- int z;
- int osubs;
memset(mi, 0, sizeof(mi));
- for (z = 1; z < MAXNOC; z++)
- emp_initque((struct emp_qelem *)&mi[z]);
+ for (cn = 1; cn < MAXNOC; cn++)
+ emp_initque((struct emp_qelem *)&mi[cn]);
build_mission_list(mi, x, y, mission, victim);
osubs = only_subs(&mi[cn].queue);
newdam = perform_mission(x, y, victim, &mi[cn].queue,
mission, s, hardtarget);
- dam += newdam;
- if (newdam) {
- /* If only subs responded, then we don't know who's
- subs they are */
+ dam = tally_dam(dam, newdam);
+ if (newdam > 0)
mpr(victim, "%s interdiction mission does %d damage!\n",
osubs ? "Enemy" : cname(cn), newdam);
- }
}
- if (dam) {
+ if (dam > 0)
collateral_damage(x, y, dam);
- }
return dam;
}
{
int dam = 0;
struct genlist mi[MAXNOC];
- int z;
+ int cn;
memset(mi, 0, sizeof(mi));
- for (z = 1; z < MAXNOC; z++)
- emp_initque((struct emp_qelem *)&mi[z]);
+ for (cn = 1; cn < MAXNOC; cn++)
+ emp_initque((struct emp_qelem *)&mi[cn]);
build_mission_list(mi, x, y, MI_SUPPORT, victim);
build_mission_list(mi, x, y, MI_OSUPPORT, victim);
{
int dam = 0;
struct genlist mi[MAXNOC];
- int z;
+ int cn;
memset(mi, 0, sizeof(mi));
- for (z = 1; z < MAXNOC; z++)
- emp_initque((struct emp_qelem *)&mi[z]);
+ for (cn = 1; cn < MAXNOC; cn++)
+ emp_initque((struct emp_qelem *)&mi[cn]);
build_mission_list(mi, x, y, MI_SUPPORT, victim);
build_mission_list(mi, x, y, MI_DSUPPORT, victim);
dosupport(struct genlist *mi, coord x, coord y, natid victim, natid actee)
{
int cn;
- int rel;
+ int rel, newdam;
int dam = 0;
for (cn = 1; cn < MAXNOC; cn++) {
if (QEMPTY(&mi[cn].queue))
continue;
- dam += perform_mission(x, y, victim, &mi[cn].queue, MI_SUPPORT,
- "", SECT_HARDTARGET);
+ newdam = perform_mission(x, y, victim, &mi[cn].queue, MI_SUPPORT,
+ "", SECT_HARDTARGET);
+ if (newdam > 0)
+ dam += newdam;
}
return dam;
}
glp = malloc(sizeof(struct genlist));
memset(glp, 0, sizeof(struct genlist));
- glp->cp = get_empobj_chr(gp);
glp->thing = malloc(sizeof(item));
memcpy(glp->thing, &item, sizeof(item));
emp_insque(&glp->queue, &mi[gp->own].queue);
perform_mission(coord x, coord y, natid victim, struct emp_qelem *list,
int mission, char *s, int hardtarget)
{
- struct emp_qelem *qp, missiles, bombers, escorts, airp, b, e;
- struct emp_qelem *newqp;
+ struct emp_qelem *qp, missiles, bombers;
struct genlist *glp;
struct plist *plp;
- struct empobj *gp;
- struct lndstr *lp;
- struct shpstr *sp;
- struct sctstr sect;
- struct mchrstr *mcp;
struct plchrstr *pcp;
- int dam = 0, dam2;
- natid plane_owner = 0;
- int md, range, air_dam = 0;
- double hitchance, vrange;
+ int dam = -1;
int targeting_ships = *s == 's'; /* "subs" or "ships" FIXME gross! */
- getsect(x, y, §);
-
emp_initque(&missiles);
emp_initque(&bombers);
- emp_initque(&escorts);
- emp_initque(&airp);
- for (qp = list->q_forw; qp != list; qp = qp->q_forw) {
+ for (qp = list->q_forw; qp != list; ) {
glp = (struct genlist *)qp;
- gp = glp->thing;
-
- md = mapdist(x, y, gp->x, gp->y);
+ qp = qp->q_forw;
if (glp->thing->ef_type == EF_LAND) {
- lp = (struct lndstr *)glp->thing;
-
- if (mission == MI_SINTERDICT)
- continue;
-
- if ((mission == MI_INTERDICT) &&
- (md > land_max_interdiction_range))
- continue;
-
- range = roundrange(lnd_fire_range(lp));
- if (md > range)
- continue;
-
- dam2 = lnd_fire(lp);
- putland(lp->lnd_uid, lp);
- if (dam2 < 0)
- continue;
-
- 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));
+ dam = perform_mission_land(dam, (struct lndstr *)glp->thing,
+ x, y, victim, mission, s,
+ targeting_ships);
} else if (glp->thing->ef_type == EF_SHIP) {
- sp = (struct shpstr *)glp->thing;
- mcp = glp->cp;
-
- if (((mission == MI_INTERDICT) ||
- (mission == MI_SINTERDICT)) &&
- (md > ship_max_interdiction_range))
- continue;
- if (mission == MI_SINTERDICT) {
- if (!(mcp->m_flags & M_SONAR))
- continue;
- if (!(mcp->m_flags & M_DCH) && !(mcp->m_flags & M_SUBT))
- continue;
- vrange = techfact(sp->shp_tech, mcp->m_vrnge);
- vrange *= sp->shp_effic / 200.0;
- if (md > vrange)
- continue;
- /* can't look all the time */
- if (chance(0.5))
- continue;
- }
- if (mcp->m_flags & M_SUB) {
- 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;
- dam2 = shp_torp(sp, 1);
- putship(sp->shp_uid, sp);
- if (dam2 < 0)
- continue;
- hitchance = shp_torp_hitchance(sp, md);
-
- wu(0, sp->shp_own,
- "%s locking on %s %s in %s\n",
- prship(sp), cname(victim), s, xyas(x, y, sp->shp_own));
- wu(0, sp->shp_own,
- "\tEffective torpedo range is %d.0\n", range);
- wu(0, sp->shp_own,
- "\tWhooosh... Hitchance = %d%%\n",
- (int)(hitchance * 100));
-
- if (!chance(hitchance)) {
- wu(0, sp->shp_own, "\tMissed\n");
- mpr(victim,
- "Incoming torpedo sighted @ %s missed (whew)!\n",
- xyas(x, y, victim));
- continue;
- }
- wu(0, sp->shp_own, "\tBOOM!...\n");
- dam += dam2;
- nreport(victim, N_TORP_SHIP, 0, 1);
- wu(0, sp->shp_own,
- "\tTorpedo hit %s %s for %d damage\n",
- cname(victim), s, dam2);
-
- mpr(victim,
- "Incoming torpedo sighted @ %s hits and does %d damage!\n",
- xyas(x, y, victim), dam2);
- } else {
- range = roundrange(shp_fire_range(sp));
- if (md > range)
- continue;
- if (mission == MI_SINTERDICT)
- dam2 = shp_dchrg(sp);
- else
- dam2 = shp_fire(sp);
- putship(sp->shp_uid, sp);
- if (dam2 < 0)
- continue;
- dam += dam2;
- if (targeting_ships)
- nreport(sp->shp_own, N_SHP_SHELL, victim, 1);
- else
- nreport(sp->shp_own, N_SCT_SHELL, victim, 1);
- wu(0, sp->shp_own,
- "%s fires at %s %s at %s\n",
- prship(sp), cname(victim), s, xyas(x, y, sp->shp_own));
-
- mpr(victim, "%s %s fires at you at %s\n",
- cname(sp->shp_own), prship(sp), xyas(x, y, victim));
- }
+ dam = perform_mission_ship(dam, (struct shpstr *)glp->thing,
+ x, y, victim, mission, s,
+ targeting_ships);
} else if (glp->thing->ef_type == EF_PLANE) {
- pcp = glp->cp;
+ pcp = &plchr[glp->thing->type];
if (pcp->pl_flags & P_M)
/* units have their own missile interdiction */
if (hardtarget != SECT_HARDTARGET || pcp->pl_flags & P_MAR)
emp_insque(&plp->queue, &missiles);
else
emp_insque(&plp->queue, &bombers);
- plane_owner = plp->plane.pln_own;
} else {
CANT_REACH();
break;
}
+ free(glp->thing);
+ free(glp);
}
- 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;
- }
+
+ dam = perform_mission_msl(dam, &missiles, x, y, victim, hardtarget);
+ dam = perform_mission_bomb(dam, &bombers, x, y, victim, mission, s,
+ hardtarget, targeting_ships);
+ return dam;
+}
+
+static int
+perform_mission_land(int dam, struct lndstr *lp, coord x, coord y,
+ natid victim, int mission, char *s,
+ int targeting_ships)
+{
+ int md, range, dam2;
+
+ if (mission == MI_SINTERDICT)
+ return dam;
+
+ md = mapdist(x, y, lp->lnd_x, lp->lnd_y);
+
+ if (mission == MI_INTERDICT && md > land_max_interdiction_range)
+ return dam;
+
+ range = roundrange(lnd_fire_range(lp));
+ if (md > range)
+ return dam;
+
+ dam2 = lnd_fire(lp);
+ putland(lp->lnd_uid, lp);
+ if (dam2 < 0)
+ return dam;
+
+ if (targeting_ships) {
+ if (chance(lnd_acc(lp) / 100.0))
+ dam2 = ldround(dam2 / 2.0, 1);
}
+ 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));
- if (QEMPTY(&bombers)) {
- qp = list->q_forw;
- while (qp != list) {
- glp = (struct genlist *)qp;
- qp = qp->q_forw;
+ mpr(victim, "%s %s fires at you at %s\n",
+ cname(lp->lnd_own), prland(lp), xyas(x, y, victim));
- free(glp->thing);
- free(glp);
- }
+ return tally_dam(dam, dam2);
+}
+
+static int
+perform_mission_ship(int dam, struct shpstr *sp, coord x, coord y,
+ natid victim, int mission, char *s,
+ int targeting_ships)
+{
+ struct mchrstr *mcp = &mchr[sp->shp_type];
+ double vrange, hitchance;
+ int md, range, dam2;
+
+ md = mapdist(x, y, sp->shp_x, sp->shp_y);
+
+ if ((mission == MI_INTERDICT || mission == MI_SINTERDICT)
+ && md > ship_max_interdiction_range)
return dam;
+
+ if (mission == MI_SINTERDICT) {
+ if (!(mcp->m_flags & M_SONAR))
+ return dam;
+ if (!(mcp->m_flags & M_DCH) && !(mcp->m_flags & M_SUBT))
+ return dam;
+ vrange = techfact(sp->shp_tech, mcp->m_vrnge);
+ vrange *= sp->shp_effic / 200.0;
+ if (md > vrange)
+ return dam;
+ /* can't look all the time */
+ if (chance(0.5))
+ return dam;
+ }
+ if (mcp->m_flags & M_SUB) {
+ if (!targeting_ships)
+ return dam; /* subs interdict only ships */
+ range = roundrange(torprange(sp));
+ if (md > range)
+ return dam;
+ if (!line_of_sight(NULL, x, y, sp->shp_x, sp->shp_y))
+ return dam;
+ dam2 = shp_torp(sp, 1);
+ putship(sp->shp_uid, sp);
+ if (dam2 < 0)
+ return dam;
+ hitchance = shp_torp_hitchance(sp, md);
+
+ wu(0, sp->shp_own,
+ "%s locking on %s %s in %s\n",
+ prship(sp), cname(victim), s, xyas(x, y, sp->shp_own));
+ wu(0, sp->shp_own,
+ "\tEffective torpedo range is %d.0\n", range);
+ wu(0, sp->shp_own,
+ "\tWhooosh... Hitchance = %d%%\n",
+ (int)(hitchance * 100));
+
+ if (!chance(hitchance)) {
+ wu(0, sp->shp_own, "\tMissed\n");
+ mpr(victim,
+ "Incoming torpedo sighted @ %s missed (whew)!\n",
+ xyas(x, y, victim));
+ return tally_dam(dam, 0);
+ }
+ wu(0, sp->shp_own, "\tBOOM!...\n");
+ nreport(victim, N_TORP_SHIP, 0, 1);
+ wu(0, sp->shp_own,
+ "\tTorpedo hit %s %s for %d damage\n",
+ cname(victim), s, dam2);
+
+ mpr(victim,
+ "Incoming torpedo sighted @ %s hits and does %d damage!\n",
+ xyas(x, y, victim), dam2);
+ } else {
+ range = roundrange(shp_fire_range(sp));
+ if (md > range)
+ return dam;
+ if (mission == MI_SINTERDICT)
+ dam2 = shp_dchrg(sp);
+ else
+ dam2 = shp_fire(sp);
+ putship(sp->shp_uid, sp);
+ if (dam2 < 0)
+ return dam;
+ if (targeting_ships)
+ nreport(sp->shp_own, N_SHP_SHELL, victim, 1);
+ else
+ nreport(sp->shp_own, N_SCT_SHELL, victim, 1);
+ wu(0, sp->shp_own,
+ "%s fires at %s %s at %s\n",
+ prship(sp), cname(victim), s, xyas(x, y, sp->shp_own));
+
+ mpr(victim, "%s %s fires at you at %s\n",
+ cname(sp->shp_own), prship(sp), xyas(x, y, victim));
+ }
+
+ return tally_dam(dam, dam2);
+}
+
+static int
+perform_mission_msl(int dam, struct emp_qelem *missiles, coord x, coord y,
+ natid victim, int hardtarget)
+{
+ int performed, air_dam, sublaunch, dam2;
+ struct emp_qelem *qp, *newqp;
+ struct plist *plp;
+
+ /*
+ * Missiles, except for interdiction of ships or land units,
+ * because that happens elsewhere, in shp_missile_interdiction()
+ * and lnd_missile_interdiction().
+ */
+ performed = 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;
+ performed = 1;
+ 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);
}
+
+ return performed ? tally_dam(dam, air_dam) : dam;
+}
+
+static int
+perform_mission_bomb(int dam, struct emp_qelem *bombers, coord x, coord y,
+ natid victim, int mission, char *s, int hardtarget,
+ int targeting_ships)
+{
+ struct emp_qelem *qp, *newqp, escorts, airp, b, e;
+ struct plist *plp;
+ int plane_owner, performed, air_dam, md;
+
+ emp_initque(&escorts);
+ emp_initque(&airp);
+
+ if (QEMPTY(bombers))
+ return dam;
+
+ plp = (struct plist *)bombers->q_forw;
+ plane_owner = plp->plane.pln_own;
+
/*
* If there are planes performing an
* interdict or support mission, find
find_escorts(x, y, plane_owner, &escorts);
if (mission == MI_SINTERDICT)
- mission_pln_sel(&bombers, P_T | P_A, 0, hardtarget);
+ mission_pln_sel(bombers, P_T | P_A, 0, hardtarget);
else
- mission_pln_sel(&bombers, P_T, P_A, SECT_HARDTARGET);
+ mission_pln_sel(bombers, P_T, P_A, SECT_HARDTARGET);
mission_pln_sel(&escorts, P_ESC | P_F, 0, SECT_HARDTARGET);
- for (qp = bombers.q_forw; qp != (&bombers); qp = qp->q_forw) {
+ for (qp = bombers->q_forw; qp != bombers; 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);
}
+ performed = air_dam = 0;
for (qp = airp.q_forw; qp != (&airp); qp = qp->q_forw) {
struct airport *air;
char buf[512];
emp_initque(&e);
/* Split off the bombers at this base into b */
- divide(&bombers, &b, air->x, air->y);
+ divide(bombers, &b, air->x, air->y);
/* Split off the escorts at this base into e */
divide(&escorts, &e, air->x, air->y);
pp = BestAirPath(buf, air->x, air->y, x, y);
if (CANT_HAPPEN(!pp))
continue;
+ performed = 1;
wu(0, plane_owner, "Flying %s mission from %s to %s\n",
mission_name(mission),
xyas(air->x, air->y, plane_owner),
}
if (air_dam > 0) {
- dam += air_dam;
if (targeting_ships)
nreport(plane_owner, N_SHP_BOMB, victim, 1);
else
nreport(plane_owner, N_SCT_BOMB, victim, 1);
}
- /* free up all this memory */
- qp = list->q_forw;
- while (qp != list) {
- glp = (struct genlist *)qp;
- qp = qp->q_forw;
-
- free(glp->thing);
- free(glp);
- }
-
qp = escorts.q_forw;
while (qp != (&escorts)) {
newqp = qp->q_forw;
qp = newqp;
}
- qp = bombers.q_forw;
- while (qp != (&bombers)) {
+ qp = bombers->q_forw;
+ while (qp != bombers) {
newqp = qp->q_forw;
emp_remque(qp);
free(qp);
qp = newqp;
}
- return dam;
+ return performed ? tally_dam(dam, air_dam) : dam;
}
int
}
char *
-mission_name(short mission)
+mission_name(int mission)
{
switch (mission) {
case MI_INTERDICT:
itype = I_NONE;
switch (mission) {
case 'p': /* pinpoint bomb */
- if (nuk_on_plane(pp) >= 0)
- break;
itype = I_SHELL;
break;
case 'i': /* missile interception */
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);
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;
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,