/*
* Empire - A multi-player, client/server Internet based war game.
- * Copyright (C) 1986-2008, 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
* Dave Pare, 1986
* Thomas Ruschak, 1992
* Steve McClure, 1996
- * Markus Armbruster, 2006-2008
+ * Markus Armbruster, 2006-2009
*/
#include <config.h>
#include "land.h"
#include "map.h"
#include "misc.h"
+#include "mission.h"
#include "nat.h"
#include "news.h"
#include "nsc.h"
#define FLAK_GUN_MAX 14
-static int plane_caps(struct emp_qelem *);
+static void sam_intercept(struct emp_qelem *, struct emp_qelem *,
+ natid, natid, coord, coord, int);
static void ac_intercept(struct emp_qelem *, struct emp_qelem *,
- struct emp_qelem *, natid, coord, coord);
+ struct emp_qelem *, natid, coord, coord, int);
+static void ac_combat_headers(natid, natid);
+static void ac_airtoair(struct emp_qelem *, struct emp_qelem *);
static void ac_dog(struct plist *, struct plist *);
static void ac_planedamage(struct plist *, natid, int, natid, int,
int, char *);
static void ac_landflak(struct emp_qelem *, coord, coord);
static void ac_shipflak(struct emp_qelem *, coord, coord);
static void ac_fireflak(struct emp_qelem *, natid, int);
-static void getilist(struct emp_qelem *, natid);
+static void getilists(struct emp_qelem *, unsigned char *, natid);
static int do_evade(struct emp_qelem *, struct emp_qelem *);
void
ac_encounter(struct emp_qelem *bomb_list, struct emp_qelem *esc_list,
- coord x, coord y, char *path, int mission_flags,
- int no_air_defense)
+ coord x, coord y, char *path, int mission_flags)
{
int val;
- int rel;
int dir;
- int nats[MAXNOC];
- int lnats[MAXNOC];
- int gotilist[MAXNOC];
- int unfriendly[MAXNOC];
+ unsigned char gotships[MAXNOC];
+ unsigned char gotlands[MAXNOC];
+ unsigned char rel[MAXNOC];
int overfly[MAXNOC];
int flags;
struct emp_qelem ilist[MAXNOC];
struct lndstr land;
struct nstr_item ni;
natid cn;
- struct natstr *mynatp;
struct plist *plp;
int evaded;
struct shiplist *head = NULL;
plane_owner = plp->plane.pln_own;
memset(overfly, 0, sizeof(overfly));
- memset(gotilist, 0, sizeof(gotilist));
- memset(unfriendly, 0, sizeof(unfriendly));
- for (cn = 1; cn < MAXNOC; cn++) {
- if ((mynatp = getnatp(cn)) == 0)
- continue;
- rel = getrel(mynatp, plane_owner);
- if (rel > HOSTILE)
- continue;
- if (plane_owner == cn)
- continue;
- unfriendly[cn]++;
- }
+ getilists(ilist, rel, plane_owner);
+
if (mission_flags & PM_R) {
- flags = plane_caps(bomb_list);
+ flags = pln_caps(bomb_list);
if (flags & P_S) {
PR(plane_owner, "\nSPY Plane report\n");
PRdate(plane_owner);
}
}
- while ((dir = *path++) && !QEMPTY(bomb_list)) {
- if ((val = diridx(dir)) == DIR_STOP)
- break;
- /* XXX using xnorm is probably bad */
- x = xnorm(x + diroff[val][0]);
- y = ynorm(y + diroff[val][1]);
+ for (;;) {
getsect(x, y, §);
+ memset(gotships, 0, sizeof(gotships));
+ snxtitem_xy(&ni, EF_SHIP, x, y);
+ while (nxtitem(&ni, &ship)) {
+ if (mchr[(int)ship.shp_type].m_flags & M_SUB)
+ continue;
+ gotships[ship.shp_own] = 1;
+ }
+ memset(gotlands, 0, sizeof(gotlands));
+ snxtitem_xy(&ni, EF_LAND, x, y);
+ while (nxtitem(&ni, &land)) {
+ if (land.lnd_ship >= 0 || land.lnd_land >= 0)
+ continue;
+ gotlands[land.lnd_own] = 1;
+ }
if (mission_flags & PM_R) {
- flags = plane_caps(bomb_list);
+ flags = pln_caps(bomb_list);
if (opt_HIDDEN)
setcont(plane_owner, sect.sct_own, FOUND_FLY);
if (sect.sct_type == SCT_WATER) {
}
if (flags & P_S)
satdisp_units(sect.sct_x, sect.sct_y);
+ else {
+ for (cn = 1; cn < MAXNOC; cn++) {
+ if (cn == plane_owner)
+ continue;
+ if (gotships[cn])
+ PR(plane_owner, "Flying over %s ships in %s\n",
+ cname(cn), xyas(x, y, plane_owner));
+ if (gotlands[cn])
+ PR(plane_owner, "Flying over %s land units in %s\n",
+ cname(cn), xyas(x, y, plane_owner));
+ }
+ }
} else {
PR(plane_owner, "flying over %s at %s\n",
dchr[sect.sct_type].d_name, xyas(x, y, plane_owner));
}
evaded = do_evade(bomb_list, esc_list);
- if (evaded)
- continue;
-
- if (sect.sct_own != 0 && sect.sct_own != plane_owner
- && getrel(getnatp(sect.sct_own), plane_owner) != ALLIED) {
+ if (!evaded) {
overfly[sect.sct_own]++;
- PR(sect.sct_own, "%s planes spotted over %s\n",
- cname(plane_owner), xyas(x, y, sect.sct_own));
- if (opt_HIDDEN)
- setcont(sect.sct_own, plane_owner, FOUND_FLY);
- }
-
- /* Fire flak */
- if (unfriendly[sect.sct_own])
- ac_doflak(bomb_list, §);
- /* If bombers left, fire flak from units and ships */
- if (!QEMPTY(bomb_list))
- ac_landflak(bomb_list, x, y);
- if (!QEMPTY(bomb_list))
- ac_shipflak(bomb_list, x, y);
- /* mission planes aborted due to flak -- don't send escorts */
- if (QEMPTY(bomb_list))
- break;
-
- if (!no_air_defense)
- air_defense(x, y, plane_owner, bomb_list, esc_list);
-
- if (sect.sct_own == 0 || sect.sct_own == plane_owner)
- continue;
+ for (cn = 1; cn < MAXNOC; cn++) {
+ if (cn == plane_owner || rel[cn] == ALLIED)
+ continue;
+ if (cn != sect.sct_own && !gotships[cn] && !gotlands[cn])
+ continue;
+ PR(cn, "%s planes spotted over %s\n",
+ cname(plane_owner), xyas(x, y, cn));
+ if (opt_HIDDEN)
+ setcont(cn, plane_owner, FOUND_FLY);
+ }
- if (unfriendly[sect.sct_own]) {
- if (!gotilist[sect.sct_own]) {
- getilist(&ilist[sect.sct_own], sect.sct_own);
- gotilist[sect.sct_own]++;
+ /* Fire flak */
+ if (rel[sect.sct_own] <= HOSTILE)
+ ac_doflak(bomb_list, §);
+ /* If bombers left, fire flak from units and ships */
+ if (!QEMPTY(bomb_list))
+ ac_landflak(bomb_list, x, y);
+ if (!QEMPTY(bomb_list))
+ ac_shipflak(bomb_list, x, y);
+ /* mission planes aborted due to flak -- don't send escorts */
+ if (QEMPTY(bomb_list))
+ break;
+
+ for (cn = 1; cn < MAXNOC && !QEMPTY(bomb_list); cn++) {
+ if (rel[cn] > HOSTILE)
+ continue;
+ ac_intercept(bomb_list, esc_list, &ilist[cn], cn, x, y,
+ !(cn == sect.sct_own
+ || gotships[cn] || gotlands[cn]));
}
- ac_intercept(bomb_list, esc_list, &ilist[sect.sct_own],
- sect.sct_own, x, y);
}
+
+ dir = *path++;
+ if (!dir || QEMPTY(bomb_list) || (val = diridx(dir)) == DIR_STOP)
+ break;
+ x = xnorm(x + diroff[val][0]);
+ y = ynorm(y + diroff[val][1]);
}
/* Let's report all of the overflights even if aborted */
for (cn = 1; cn < MAXNOC; cn++) {
if (plane_owner == cn)
continue;
- if (overfly[cn] > 0)
+ if (overfly[cn] > 0 && rel[cn] != ALLIED)
nreport(plane_owner, N_OVFLY_SECT, cn, overfly[cn]);
}
/* If the map changed, update it */
if (changed)
writemap(player->cnum);
- /* Now, if the bomber and escort lists are empty, we are done */
- if (QEMPTY(bomb_list) && QEMPTY(esc_list))
- goto out;
- /* Something made it through */
- /* Go figure out if there are ships in this sector, and who's they are */
- memset(nats, 0, sizeof(nats));
- snxtitem_xy(&ni, EF_SHIP, x, y);
- while (nxtitem(&ni, &ship)) {
- if (mchr[(int)ship.shp_type].m_flags & M_SUB)
- continue;
- nats[ship.shp_own]++;
- }
- /* Go figure out if there are units in this sector, and who's they are */
- memset(lnats, 0, sizeof(lnats));
- snxtitem_xy(&ni, EF_LAND, x, y);
- while (nxtitem(&ni, &land)) {
- if (land.lnd_ship >= 0 || land.lnd_land >= 0)
- continue;
- lnats[land.lnd_own]++;
- }
-
- /* Now, let's make life a little rougher. */
- for (cn = 1; cn < MAXNOC && !QEMPTY(bomb_list); cn++) {
- if (plane_owner == cn)
- continue;
- if (nats[cn] != 0) {
- PR(plane_owner, "Flying over %s ships in %s\n",
- cname(cn), xyas(x, y, plane_owner));
- PR(cn, "%s planes spotted over ships in %s\n",
- cname(plane_owner), xyas(x, y, cn));
- }
- if (lnats[cn] != 0) {
- PR(plane_owner, "Flying over %s land units in %s\n",
- cname(cn), xyas(x, y, plane_owner));
- PR(cn, "%s planes spotted over land units in %s\n",
- cname(plane_owner), xyas(x, y, cn));
- }
- if (nats[cn] || lnats[cn]) {
- if (opt_HIDDEN)
- setcont(cn, plane_owner, FOUND_FLY);
- if (unfriendly[cn] && !evaded) {
- if (!gotilist[cn]) {
- getilist(&ilist[cn], cn);
- gotilist[cn]++;
- }
- ac_intercept(bomb_list, esc_list, &ilist[cn], cn, x, y);
- }
- }
- }
-out:
free_shiplist(&head);
- for (cn = 1; cn < MAXNOC; cn++) {
- if (gotilist[cn])
- pln_put(&ilist[cn]);
- }
-}
-
-static int
-plane_caps(struct emp_qelem *list)
-{
- struct emp_qelem *qp;
- struct plist *plp;
- int fl;
-
- fl = 0;
- for (qp = list->q_forw; qp != list; qp = qp->q_forw) {
- plp = (struct plist *)qp;
- fl |= plp->pcp->pl_flags;
- }
-
- return fl;
+ for (cn = 1; cn < MAXNOC; cn++)
+ pln_put(&ilist[cn]);
}
-void
+static void
sam_intercept(struct emp_qelem *att_list, struct emp_qelem *def_list,
natid def_own, natid plane_owner, coord x, coord y,
- int delete_missiles)
+ int only_mission)
{
struct emp_qelem *aqp;
struct emp_qelem *anext;
struct emp_qelem *dnext;
struct plist *aplp;
struct plist *dplp;
+ struct plnstr *pp;
int first = 1;
for (aqp = att_list->q_forw,
for (; dqp != def_list; dqp = dnext) {
dnext = dqp->q_forw;
dplp = (struct plist *)dqp;
+ pp = &dplp->plane;
if (!(dplp->pcp->pl_flags & P_M))
continue;
-
- if (dplp->plane.pln_range <
- mapdist(x, y, dplp->plane.pln_x, dplp->plane.pln_y))
+ if (only_mission && !pp->pln_mission)
continue;
- if (CANT_HAPPEN(dplp->plane.pln_flags & PLN_LAUNCHED)
- || mission_pln_equip(dplp, 0, P_F, 0) < 0) {
+ if (pp->pln_range < mapdist(x, y, pp->pln_x, pp->pln_y))
+ continue;
+ if (pp->pln_mission
+ && pp->pln_radius < mapdist(x, y, pp->pln_opx, pp->pln_opy))
+ continue;
+ if (CANT_HAPPEN(pp->pln_flags & PLN_LAUNCHED)
+ || mission_pln_equip(dplp, NULL, 0) < 0) {
emp_remque(dqp);
free(dqp);
continue;
}
- dplp->plane.pln_flags |= PLN_LAUNCHED;
- putplane(dplp->plane.pln_uid, &dplp->plane);
+ pp->pln_flags |= PLN_LAUNCHED;
+ putplane(pp->pln_uid, pp);
if (first) {
first = 0;
PR(plane_owner, "%s launches SAMs!\n", cname(def_own));
PR(plane_owner, "\n");
PR(def_own, "\n");
}
- if (delete_missiles) {
- for (; dqp != def_list; dqp = dnext) {
- dnext = dqp->q_forw;
- dplp = (struct plist *)dqp;
- if (!(dplp->pcp->pl_flags & P_M))
- continue;
- emp_remque(dqp);
- free(dqp);
- continue;
- }
- }
}
static void
ac_intercept(struct emp_qelem *bomb_list, struct emp_qelem *esc_list,
- struct emp_qelem *def_list, natid def_own, coord x, coord y)
+ struct emp_qelem *def_list, natid def_own, coord x, coord y,
+ int only_mission)
{
struct plnstr *pp;
struct plist *plp;
plp = (struct plist *)bomb_list->q_forw;
plane_owner = plp->plane.pln_own;
- sam_intercept(bomb_list, def_list, def_own, plane_owner, x, y, 0);
- sam_intercept(esc_list, def_list, def_own, plane_owner, x, y, 0);
+ sam_intercept(bomb_list, def_list, def_own, plane_owner, x, y,
+ only_mission);
+ sam_intercept(esc_list, def_list, def_own, plane_owner, x, y,
+ only_mission);
att_count = 0;
for (qp = bomb_list->q_forw; qp != bomb_list; qp = qp->q_forw)
/* SAMs interdict separately */
if (plp->pcp->pl_flags & P_M)
continue;
+ if (only_mission && !pp->pln_mission)
+ continue;
dist = mapdist(x, y, pp->pln_x, pp->pln_y) * 2;
if (pp->pln_range < dist)
continue;
+ if (pp->pln_mission
+ && pp->pln_radius < mapdist(x, y, pp->pln_opx, pp->pln_opy))
+ continue;
if (CANT_HAPPEN(pp->pln_flags & PLN_LAUNCHED)
- || mission_pln_equip(plp, 0, P_F, 0) < 0) {
+ || mission_pln_equip(plp, NULL, 0) < 0) {
emp_remque(qp);
free(qp);
continue;
emp_remque(qp);
emp_insque(qp, &int_list);
pp->pln_flags |= PLN_LAUNCHED;
- pp->pln_mobil -= pln_mobcost(dist, pp, P_F);
+ pp->pln_mobil -= pln_mobcost(dist, pp, 0);
putplane(pp->pln_uid, pp);
icount++;
if (icount > att_count)
pln_put(&int_list);
}
-void
+static void
ac_combat_headers(natid plane_owner, natid def_own)
{
PR(plane_owner,
/*
* air-to-air combat.
*/
-void
+static void
ac_airtoair(struct emp_qelem *att_list, struct emp_qelem *int_list)
{
struct plist *attacker;
struct plist *interceptor;
struct emp_qelem *att;
struct emp_qelem *in;
- int nplanes;
int more_att;
int more_int;
struct emp_qelem *att_next;
att_next = att->q_forw;
attacker = (struct plist *)att;
interceptor = (struct plist *)in;
- nplanes = attacker->plane.pln_effic;
- if (nplanes > interceptor->plane.pln_effic)
- nplanes = interceptor->plane.pln_effic;
ac_dog(attacker, interceptor);
in = in_next;
att = att_next;
def = pln_def(&dp->plane) * dp->plane.pln_effic / 100;
def = MAX(def, dp->pcp->pl_def / 2);
- if ((ap->pcp->pl_flags & P_F) && ap->bombs != 0)
+ if ((ap->pcp->pl_flags & P_F) && ap->load != 0)
att -= 2;
- if ((dp->pcp->pl_flags & P_F) && dp->bombs != 0)
+ if ((dp->pcp->pl_flags & P_F) && dp->load != 0)
def -= 2;
att += ap->pcp->pl_stealth / 25.0;
def += dp->pcp->pl_stealth / 25.0;
static void
ac_doflak(struct emp_qelem *list, struct sctstr *from)
{
- int shell;
int gun;
natid plane_owner;
struct plist *plp;
plane_owner = plp->plane.pln_own;
gun = MIN(FLAK_GUN_MAX, from->sct_item[I_GUN]);
- shell = from->sct_item[I_SHELL];
- if (gun > shell * 2) {
- shell += supply_commod(from->sct_own, from->sct_x, from->sct_y,
- I_SHELL, (gun + 1) / 2 - shell);
- from->sct_item[I_SHELL] = shell;
- putsect(from);
- }
- if (gun > shell * 2)
- gun = shell * 2;
-
gun = roundavg(tfact(from->sct_own, 2.0 * gun));
if (gun > 0) {
PR(plane_owner, "firing %d flak guns in %s...\n",
struct shpstr ship;
struct mchrstr *mcp;
double flak, total, ngun;
- int gun, shell;
+ int gun;
int rel;
struct plist *plp;
natid plane_owner;
natid from;
- int nats[MAXNOC];
plp = (struct plist *)list->q_forw;
plane_owner = plp->plane.pln_own;
- memset(nats, 0, sizeof(nats));
total = ngun = 0;
snxtitem_xy(&ni, EF_SHIP, x, y);
while (!QEMPTY(list) && nxtitem(&ni, &ship)) {
rel = getrel(getnatp(ship.shp_own), plane_owner);
if (rel > HOSTILE)
continue;
- shell = 0;
gun = shp_usable_guns(&ship);
- if (gun) {
- shell = ship.shp_item[I_SHELL];
- if (shell <= 0) {
- shell = supply_commod(ship.shp_own, ship.shp_x, ship.shp_y,
- I_SHELL, 1);
- ship.shp_item[I_SHELL] = shell;
- putship(ship.shp_uid, &ship);
- }
- }
- if (gun == 0 || shell == 0)
+ if (gun == 0)
continue;
flak = gun * (ship.shp_effic / 100.0);
ngun += flak;
total += techfact(ship.shp_tech, flak * 2.0);
- if (!nats[ship.shp_own]) {
- /* First time here, print the message */
- PR(ship.shp_own, "%s planes spotted over ships in %s\n",
- cname(plane_owner), xyas(x, y, ship.shp_own));
- PR(plane_owner, "Flying over %s ships in %s\n",
- cname(ship.shp_own), xyas(x, y, plane_owner));
- nats[ship.shp_own] = 1;
- }
PR(ship.shp_own, "firing %.0f flak guns from %s...\n",
flak, prship(&ship));
from = ship.shp_own;
struct plist *plp;
natid plane_owner;
natid from;
- int nats[MAXNOC];
plp = (struct plist *)list->q_forw;
plane_owner = plp->plane.pln_own;
- memset(nats, 0, sizeof(nats));
total = ngun = 0;
snxtitem_xy(&ni, EF_LAND, x, y);
while (!QEMPTY(list) && nxtitem(&ni, &land)) {
ngun += flak;
total += techfact(land.lnd_tech, flak * 2.0);
- if (!nats[land.lnd_own]) {
- /* First time here, print the message */
- PR(land.lnd_own, "%s planes spotted over land units in %s\n",
- cname(plane_owner), xyas(x, y, land.lnd_own));
- PR(plane_owner, "Flying over %s land units in %s\n",
- cname(land.lnd_own), xyas(x, y, plane_owner));
- nats[land.lnd_own] = 1;
- }
PR(land.lnd_own, "firing flak guns from unit %s (aa rating %d)\n",
prland(&land), aaf);
from = land.lnd_own;
struct emp_qelem *next;
char msg[255];
- plp = (struct plist *)list->q_forw;
-
for (qp = list->q_forw; qp != list; qp = next) {
next = qp->q_forw;
plp = (struct plist *)qp;
flak = guns - def;
if ((pl_flags & P_T) == 0)
flak--;
- if (pl_flags & P_X)
- flak -= 2;
- if (pl_flags & P_H)
- flak -= 1;
if (flak > 8)
mult = flaktable[FLAK_MAX];
}
/*
- * Get a list of planes available for interception duties.
+ * Get planes available for interception duties.
*/
static void
-getilist(struct emp_qelem *list, natid own)
+getilists(struct emp_qelem *list, unsigned char *rel, natid intruder)
{
+ natid cn;
struct plchrstr *pcp;
struct plnstr plane;
struct nstr_item ni;
struct plist *ip;
- emp_initque(list);
+ rel[0] = NEUTRAL;
+ for (cn = 1; cn < MAXNOC; cn++) {
+ rel[cn] = getrel(getnatp(cn), intruder);
+ emp_initque(&list[cn]);
+ }
+
snxtitem_all(&ni, EF_PLANE);
while (nxtitem(&ni, &plane)) {
- if (plane.pln_own != own)
+ if (rel[plane.pln_own] > HOSTILE)
continue;
pcp = &plchr[(int)plane.pln_type];
if ((pcp->pl_flags & P_F) == 0)
continue;
if (plane.pln_flags & PLN_LAUNCHED)
continue;
- if (plane.pln_mission != 0)
+ if (plane.pln_mission && plane.pln_mission != MI_AIR_DEFENSE)
continue;
if (plane.pln_mobil <= 0)
continue;
continue;
/* got one! */
ip = malloc(sizeof(*ip));
- ip->bombs = 0;
- ip->misc = 0;
+ ip->load = 0;
ip->pcp = &plchr[(int)plane.pln_type];
ip->plane = plane;
- emp_insque(&ip->queue, list);
+ emp_insque(&ip->queue, &list[plane.pln_own]);
}
}
projects / empserver / blobdiff