/*
* Range of a radar with @eff efficiency, @tlev tech, and @spy power.
*/
static int
rad_range(int eff, double tlev, int spy)
{
int range;
range = (int)techfact(tlev, spy);
range = (int)(range * (eff / 100.0));
if (range < 1)
range = 1;
return range;
}
int
sate(void)
{
static int sct_shp_or_lnd[] = { EF_SECTOR, EF_SHIP, EF_LAND, EF_BAD };
double tech;
int pln_uid;
struct plnstr plane;
int type = EF_BAD;
if (!player->argp[1] ||
!*player->argp[1] ||
!isdigit(*player->argp[1]) ||
(pln_uid = atoi(player->argp[1])) < 0)
return RET_SYN;
if (!getplane(pln_uid, &plane)) {
pr("No such plane\n");
return RET_FAIL;
}
if (plane.pln_own != player->cnum && !player->god) {
pr("You don't own plane #%d\n", pln_uid);
return RET_FAIL;
}
if (!pln_is_in_orbit(&plane)) {
pr("%s isn't in orbit\n", prplane(&plane));
return RET_FAIL;
}
if (plane.pln_mobil < plane_mob_max) {
pr("%s doesn't have enough mobility (needs %d)\n",
prplane(&plane), plane_mob_max);
return RET_FAIL;
}
if (player->argp[2]) {
type = ef_byname_from(player->argp[2], sct_shp_or_lnd);
if (type < 0) {
return RET_SYN;
}
}
if (plchr[(int)plane.pln_type].pl_flags & P_S)
pr("Satellite Spy Report:\n");
else
pr("Satellite Map Report:\n");
pr("%s at ", prplane(&plane));
tech = techfact(plane.pln_tech, 20.0);
return satmap(plane.pln_x, plane.pln_y, plane.pln_effic,
(int)tech, plchr[(int)plane.pln_type].pl_flags, type);
}
int
sona(void)
{
struct nstr_item ni, nit;
struct sctstr sect;
struct shpstr ship;
struct shpstr targ;
struct natstr *natp;
struct mchrstr *mcp;
struct mchrstr *tmcp;
struct nstr_sect ns;
int range;
int visib, pingrange;
int srange;
int vrange;
int dist;
int x, y;
int cx, cy;
int changed = 0;
int row;
/* Where these are used are non-re-entrant, so we keep 'em around */
static char **rad = NULL;
static char *radbuf = NULL;
static signed char **vis = NULL;
static signed char *visbuf = NULL;
if (!snxtitem(&ni, EF_SHIP, player->argp[1], NULL))
return RET_SYN;
if (!radbuf)
radbuf = malloc(WORLD_Y * MAPWIDTH(1));
if (!visbuf)
visbuf = malloc(WORLD_Y * MAPWIDTH(1));
if (!rad && radbuf) {
rad = malloc(WORLD_Y * sizeof(char *));
if (rad) {
for (x = 0; x < WORLD_Y; x++) {
rad[x] = &radbuf[(WORLD_X + 1) * x];
}
}
}
if (!vis && visbuf) {
vis = malloc(WORLD_Y * sizeof(signed char *));
if (vis) {
for (x = 0; x < WORLD_Y; x++) {
vis[x] = &visbuf[(WORLD_X + 1) * x];
}
}
}
if (!radbuf || !visbuf || !rad || !vis) {
pr("Memory error, tell the deity.\n");
logerror("malloc failed in sona\n");
return RET_FAIL;
}
while (nxtitem(&ni, &ship)) {
if (!player->owner)
continue;
mcp = &mchr[(int)ship.shp_type];
if (!(mcp->m_flags & M_SONAR))
continue;
getsect(ship.shp_x, ship.shp_y, §);
if (sect.sct_type != SCT_WATER)
continue;
range = (int)techfact(ship.shp_tech, mcp->m_vrnge);
srange = MIN(7, 7 * range * ship.shp_effic / 200);
pr("%s at %s efficiency %d%%, max range %d\n",
prship(&ship),
xyas(ship.shp_x, ship.shp_y, player->cnum),
ship.shp_effic, srange);
snxtsct_dist(&ns, ship.shp_x, ship.shp_y, srange);
blankfill(radbuf, &ns.range, 1);
while (nxtsct(&ns, §)) {
if (player->owner || sect.sct_type == SCT_WATER)
rad[ns.dy][ns.dx] = dchr[sect.sct_type].d_mnem;
else {
rad[ns.dy][ns.dx] = '?';
}
}
snxtsct_dist(&ns, ship.shp_x, ship.shp_y, srange);
cx = deltx(&ns.range, ship.shp_x);
cy = delty(&ns.range, ship.shp_y);
while (nxtsct(&ns, §)) {
if (!line_of_sight(rad, cx, cy, ns.dx, ns.dy)) {
rad[ns.dy][ns.dx] = ' ';
continue;
}
if (ship.shp_tech >= 310 && sect.sct_type == SCT_WATER) {
if (sect.sct_mines) {
pr("Sonar detects %d mines in %s!\n",
sect.sct_mines,
xyas(sect.sct_x, sect.sct_y, player->cnum));
rad[ns.dy][ns.dx] = 'X';
}
}
changed |= map_set(player->cnum, sect.sct_x, sect.sct_y,
rad[ns.dy][ns.dx], 0);
}
memset(visbuf, 0, (WORLD_Y * (WORLD_X + 1)));
snxtitem_dist(&nit, EF_SHIP, ship.shp_x, ship.shp_y, range);
while (nxtitem(&nit, &targ)) {
if (targ.shp_own == player->cnum || targ.shp_own == 0)
continue;
tmcp = &mchr[(int)targ.shp_type];
visib = shp_visib(&targ);
pingrange = MIN(7, MAX(visib, 10) * range / 10);
vrange = pingrange * ship.shp_effic / 200;
dist = mapdist(targ.shp_x, targ.shp_y, ship.shp_x, ship.shp_y);
pingrange = (MAX(pingrange, 2) * targ.shp_effic) / 100;
if (dist > pingrange)
continue;
if (tmcp->m_flags & M_SONAR && targ.shp_own) {
natp = getnatp(targ.shp_own);
if (natp->nat_flags & NF_SONAR)
wu(0, targ.shp_own,
"Sonar ping from %s detected by %s!\n",
xyas(ship.shp_x, ship.shp_y,
targ.shp_own), prship(&targ));
if (targ.shp_rflags & RET_SONARED)
retreat_ship(&targ, targ.shp_own, 's');
}
if (dist > vrange)
continue;
x = deltx(&ns.range, (int)targ.shp_x);
y = delty(&ns.range, (int)targ.shp_y);
if (rad[y][x] != dchr[SCT_WATER].d_mnem && rad[y][x] != 'X')
continue;
if (tmcp->m_flags & M_SUB &&
relations_with(targ.shp_own, player->cnum) < FRIENDLY) {
if (mcp->m_vrnge + visib < 8)
pr("Sonar detects sub #%d @ %s\n",
targ.shp_uid,
xyas(targ.shp_x, targ.shp_y, player->cnum));
else if (mcp->m_vrnge + visib < 10)
pr("Sonar detects %s @ %s\n",
prship(&targ),
xyas(targ.shp_x, targ.shp_y, player->cnum));
else
pr("Sonar detects %s %s @ %s\n",
cname(targ.shp_own), prship(&targ),
xyas(targ.shp_x, targ.shp_y, player->cnum));
} else
pr("Sonar detects %s %s @ %s\n",
cname(targ.shp_own), prship(&targ),
xyas(targ.shp_x, targ.shp_y, player->cnum));
if (visib > vis[y][x]) {
vis[y][x] = visib;
/* &~0x20 makes it a cap letter */
rad[y][x] = (*mchr[(int)targ.shp_type].m_name) & ~0x20;
}
}
if (!player->argp[2]) {
rad[cy][cx] = '0';
for (row = 0; row < ns.range.height; row++)
if (!blankrow(rad[row]))
pr("%s\n", rad[row]);
}
pr("\n");
}
if (changed)
writemap(player->cnum);
return RET_OK;
}
void
plane_sona(struct emp_qelem *plane_list, int x, int y,
struct shiplist **head)
{
struct plnstr *pp;
struct plchrstr *pcp;
struct mchrstr *tmcp;
struct shpstr *targ, s;
struct natstr *natp;
struct emp_qelem *qp;
struct emp_qelem *next;
struct plist *ip;
struct sctstr sect;
int found = 0;
int range, i, vis;
int pingrange;
int vrange;
int dist;
getsect(x, y, §);
if ((sect.sct_type != SCT_WATER) && (sect.sct_type != SCT_HARBR))
return;
for (qp = plane_list->q_forw; qp != plane_list; qp = next) {
next = qp->q_forw;
ip = (struct plist *)qp;
pp = &ip->plane;
pcp = ip->pcp;
if (!(pcp->pl_flags & P_A)) /* if it isn't an ASW plane */
continue;
range = (int)techfact(pp->pln_tech, (100.0 - pln_acc(pp)) / 10.0);
for (i = 0; getship(i, &s); i++) {
targ = &s;
if (targ->shp_own == pp->pln_own || targ->shp_own == 0)
continue;
if (on_shiplist(targ->shp_uid, *head))
continue;
tmcp = &mchr[(int)targ->shp_type];
if (!(tmcp->m_flags & M_SUB))
continue;
if (!pct_chance(pln_identchance(pp, shp_hardtarget(targ),
EF_SHIP)))
continue;
vis = shp_visib(targ);
pingrange = MAX(vis, 10) * range / 10;
vrange = pingrange * (pp->pln_effic / 200.0);
dist = mapdist(targ->shp_x, targ->shp_y, x, y);
pingrange = (MAX(pingrange, 2) * targ->shp_effic);
pingrange = roundavg(pingrange / 100.0);
if (dist > pingrange)
continue;
if (tmcp->m_flags & M_SONAR && targ->shp_own) {
natp = getnatp(targ->shp_own);
if (natp->nat_flags & NF_SONAR)
wu(0, targ->shp_own,
"Sonar ping from %s detected by %s!\n",
xyas(x, y, targ->shp_own), prship(targ));
}
if ((dist > vrange))
continue;
add_shiplist(targ->shp_uid, head);
if (!found) {
pr("Sonar contact in %s\n", xyas(x, y, player->cnum));
found = 1;
}
if (relations_with(targ->shp_own, pp->pln_own) < FRIENDLY &&
!pct_chance(pln_identchance(pp, shp_hardtarget(targ),
EF_SHIP)))
if (!pct_chance(pln_identchance(pp, shp_hardtarget(targ),
EF_SHIP)))
pr("sub #%d %s\n", targ->shp_uid,
xyas(targ->shp_x, targ->shp_y, player->cnum));
else
pr("%s %s\n", prship(targ),
xyas(targ->shp_x, targ->shp_y, player->cnum));
else
pr("%s %s @ %s\n", cname(targ->shp_own), prship(targ),
xyas(targ->shp_x, targ->shp_y, player->cnum));
}
}
if (found)
pr("\n");
}
double
speed_factor(double effspd, int tech)
{
return 480.0 / (effspd + techfact(tech, effspd));
}
int
msl_launch(struct plnstr *pp, int type, char *what, coord x, coord y,
natid victim, int *sublaunchp)
{
struct shpstr ship;
struct nukstr nuke;
int sublaunch = 0;
char *base, *in_or_at, *from;
mpr(pp->pln_own, "Preparing to launch %s at %s %s %s%s\n",
prplane(pp),
cname(victim),
what,
type != EF_SECTOR ? "in " : "",
xyas(x, y, pp->pln_own));
if (pp->pln_ship >= 0) {
getship(pp->pln_ship, &ship);
base = prship(&ship);
in_or_at = " in ";
if (mchr[(int)ship.shp_type].m_flags & M_SUB) {
sublaunch = 1;
from = "in hatch";
} else
from = "on deck";
} else {
if (pp->pln_harden > 0) {
base = "missile silo";
in_or_at = " at ";
from = "in silo";
} else {
base = in_or_at = "";
from = "on launch pad";
}
}
mpr(pp->pln_own, "\tLaunching from %s%s%s\n",
base, in_or_at, xyas(pp->pln_x, pp->pln_y, pp->pln_own));
CANT_HAPPEN(pp->pln_flags & PLN_LAUNCHED);
pp->pln_flags |= PLN_LAUNCHED;
putplane(pp->pln_uid, pp);
if (chance((0.05 + (100 - pp->pln_effic) / 100.0)
* (1 - techfact(pp->pln_tech, 1.0)))) {
mpr(pp->pln_own, "KABOOOOM! Missile explodes %s!\n", from);
if (getnuke(nuk_on_plane(pp), &nuke)) {
mpr(pp->pln_own, "%s lost!\n", prnuke(&nuke));
nuke.nuk_effic = 0;
putnuke(nuke.nuk_uid, &nuke);
}
#if 0
/*
* Disabled for now, because it breaks callers that call
* msl_launch() for each member of a list of planes, created
* by msl_sel() or perform_mission(). Damage to the base can
* damage other planes. Any copies of them in the list become
* stale. When msl_launch() modifies and writes back such a
* stale copy, the damage gets wiped out, triggering a seqno
* oops.
*/
if (chance(0.33)) {
struct sctstr sect;
int dam;
dam = pln_damage(pp, 'p', NULL) / 2;
if (pp->pln_ship >= 0) {
shipdamage(&ship, dam);
putship(ship.shp_uid, &ship);
} else {
mpr(pp->pln_own, "Explosion damages %s %d%%\n",
xyas(pp->pln_x, pp->pln_y, pp->pln_own), dam);
getsect(pp->pln_x, pp->pln_y, §);
sectdamage(§, dam);
putsect(§);
}
}
#endif
return -1;
}
mpr(pp->pln_own, "\tSHWOOOOOSH! Missile launched!\n");
if (type != EF_PLANE)
mpr(victim, "Incoming %s missile sighted at %s...\n",
sublaunch ? "sub-launched" : cname(pp->pln_own),
xyas(x, y, victim));
if (type == EF_SECTOR || type == EF_LAND) {
if (msl_abm_intercept(pp, x, y, sublaunch))
return -1;
}
if (type == EF_SHIP) {
if (shp_missile_defense(x, y, pp->pln_own, pln_def(pp))) {
return -1;
}
}
if (sublaunchp)
*sublaunchp = sublaunch;
return 0;
}
static void
look_land(struct lndstr *lookland)
{
struct plnstr *pp;
struct lndstr *lp;
double drange;
int range;
int vrange;
int i;
int dist;
drange = techfact(lookland->lnd_tech, lchr[lookland->lnd_type].l_spy);
drange *= lookland->lnd_effic / 100.0;
range = ldround(drange, 1);
if (range == 0)
return;
for (i = 0; NULL != (lp = getlandp(i)); i++) {
if (lp->lnd_own == player->cnum || lp->lnd_own == 0)
continue;
if (lp->lnd_ship >= 0 || lp->lnd_land >= 0)
continue;
/* Don't always see spies */
if (lchr[(int)lp->lnd_type].l_flags & L_SPY) {
/* If it's on a ship or unit, assume it's hidden
enough not to be seen */
if (lp->lnd_ship >= 0 || lp->lnd_land >= 0)
continue;
if (!(chance(LND_SPY_DETECT_CHANCE(lp->lnd_effic))))
continue;
}
vrange = ldround((lnd_vis(lp) * range) / 20.0, 1);
dist = mapdist(lp->lnd_x, lp->lnd_y,
lookland->lnd_x, lookland->lnd_y);
if (dist > vrange)
continue;
pr("%s %s (approx %d mil) @ %s\n",
prnatid(lp->lnd_own), prland(lp),
roundintby(lp->lnd_item[I_MILIT], 20),
xyas(lp->lnd_x, lp->lnd_y, player->cnum));
if (opt_HIDDEN)
setcont(player->cnum, lp->lnd_own, FOUND_LOOK);
}
for (i = 0; NULL != (pp = getplanep(i)); i++) {
if (pp->pln_own == player->cnum || pp->pln_own == 0)
continue;
if (pp->pln_ship >= 0 || pp->pln_land >= 0)
continue;
if (pp->pln_flags & PLN_LAUNCHED)
continue;
vrange = ldround((10 * range) / 20.0, 1);
dist = mapdist(pp->pln_x, pp->pln_y,
lookland->lnd_x, lookland->lnd_y);
if (dist > vrange)
continue;
pr("%s %s @ %s\n",
prnatid(pp->pln_own), prplane(pp),
xyas(pp->pln_x, pp->pln_y, player->cnum));
if (opt_HIDDEN)
setcont(player->cnum, pp->pln_own, FOUND_LOOK);
}
}
static void
look_ship(struct shpstr *lookship)
{
struct shpstr *sp;
struct mchrstr *smcp;
struct mchrstr *tmcp;
struct sctstr sect;
int range;
int vrange;
int i;
int dist;
range = (int)techfact(lookship->shp_tech,
mchr[(int)lookship->shp_type].m_vrnge);
range = range * (lookship->shp_effic / 100.0);
smcp = &mchr[(int)lookship->shp_type];
if (smcp->m_flags & M_SUB)
range = MIN(range, 1);
for (i = 0; NULL != (sp = getshipp(i)); i++) {
if (sp->shp_own == player->cnum || sp->shp_own == 0)
continue;
dist = mapdist(sp->shp_x, sp->shp_y,
lookship->shp_x, lookship->shp_y);
if (dist > ship_max_interdiction_range)
continue;
tmcp = &mchr[(int)sp->shp_type];
if (smcp->m_flags & M_SUB)
vrange = (int)(shp_visib(sp) * range / 30.0);
else
vrange = (int)(shp_visib(sp) * range / 20.0);
getsect(sp->shp_x, sp->shp_y, §);
if (sect.sct_type != SCT_WATER)
vrange = MAX(1, vrange);
if (dist > vrange)
continue;
if (smcp->m_flags & M_SUB) {
if (tmcp->m_flags & M_SONAR && dist < 2) {
if (sp->shp_own != 0)
wu(0, sp->shp_own,
"%s detected surfacing noises in %s.\n",
prship(sp),
xyas(lookship->shp_x, lookship->shp_y,
sp->shp_own));
}
if (dist == 0 && (tmcp->m_flags & M_SUB) == 0)
if (sp->shp_own != 0)
wu(0, sp->shp_own,
"Periscope spotted in %s by %s\n",
xyas(lookship->shp_x, lookship->shp_y,
sp->shp_own), prship(sp));
}
/* subs at sea only seen by sonar */
if (tmcp->m_flags & M_SUB && sect.sct_type == SCT_WATER)
continue;
pr("%s %s @ %s\n",
prnatid(sp->shp_own), prship(sp),
xyas(sp->shp_x, sp->shp_y, player->cnum));
if (opt_HIDDEN)
setcont(player->cnum, sp->shp_own, FOUND_LOOK);
}
}