/*
* Empire - A multi-player, client/server Internet based war game.
- * Copyright (C) 1986-2004, 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
*
* ---
*
- * 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.
*
* ---
*
* aircombat.c: Deal with air to air combat
- *
+ *
* Known contributors to this file:
* Dave Pare, 1986
* Thomas Ruschak, 1992
* Steve McClure, 1996
+ * Markus Armbruster, 2006-2009
*/
-#include <string.h>
+#include <config.h>
-#include "misc.h"
-#include "player.h"
-#include "news.h"
+#include "file.h"
#include "land.h"
-#include "sect.h"
-#include "plane.h"
-#include "ship.h"
+#include "map.h"
+#include "misc.h"
+#include "mission.h"
#include "nat.h"
-#include "file.h"
-#include "xy.h"
+#include "news.h"
#include "nsc.h"
+#include "optlist.h"
#include "path.h"
+#include "plane.h"
+#include "player.h"
#include "prototypes.h"
-#include "optlist.h"
-#include "server.h"
-
-
-#ifndef MAX
-#define MAX(x,y) ((x) < (y) ? (y) : (x))
-#endif
-
-static void getilist(struct emp_qelem *list, natid own,
- struct emp_qelem *a, struct emp_qelem *b,
- struct emp_qelem *c, struct emp_qelem *d);
-static void ac_dog(struct plist *ap, struct plist *dp);
-
-#define FLAK_MAX 15
+#include "sect.h"
+#include "ship.h"
+#include "xy.h"
- /* -7 -6 -5 -4 -3 -2 -1 0 */
-float flaktable[16] = { 0.20, 0.20, 0.25, 0.30, 0.35, 0.40, 0.45, 0.50,
- 0.50, 0.55, 0.60, 0.65, 0.70, 0.75, 0.80, 0.85,
-};
+#define FLAK_GUN_MAX 14
+
+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, 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_doflak(struct emp_qelem *, struct sctstr *);
+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 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, s_char *path, int mission_flags,
- int no_air_defense, struct emp_qelem *obomb,
- struct emp_qelem *oesc)
+ coord x, coord y, char *path, int mission_flags)
{
- int val, non_missiles;
- int rel;
+ int val;
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];
- struct emp_qelem ilist[MAXNOC], *qp;
- s_char mypath[1024];
- int myp;
+ int flags;
+ struct emp_qelem ilist[MAXNOC];
int civ, mil;
natid plane_owner;
struct sctstr sect;
struct lndstr land;
struct nstr_item ni;
natid cn;
- struct natstr *over, *mynatp;
struct plist *plp;
int evaded;
- struct shiplook head;
- struct shiplook *s, *s2;
+ struct shiplist *head = NULL;
int changed = 0;
- int intown = 0; /* Last owner to intercept */
/* We want to only intercept once per sector per owner. So, if we overfly
a sector, and then overfly some land units or ships, we don't want to
potentially intercept 3 times. */
- memset(&head, 0, sizeof(struct shiplook));
- head.uid = -1;
-
plp = (struct plist *)bomb_list->q_forw;
plane_owner = plp->plane.pln_own;
- strncpy(mypath, path, sizeof(mypath));
- myp = 0;
-
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) {
- if (mission_flags & P_S) {
+ flags = pln_caps(bomb_list);
+ if (flags & P_S) {
PR(plane_owner, "\nSPY Plane report\n");
PRdate(plane_owner);
sathead();
- } else if (mission_flags & P_A) {
+ } else if (flags & P_A) {
PR(plane_owner, "\nAnti-Sub Patrol report\n");
} else {
PR(plane_owner, "\nReconnaissance report\n");
}
}
- pln_removedupes(bomb_list, esc_list);
- while ((dir = mypath[myp++]) && !QEMPTY(bomb_list)) {
- if ((val = chkdir(dir, DIR_STOP, DIR_LAST)) == 0)
- break;
- /* XXX using xnorm is probably bad */
- x = xnorm(x + diroff[val][0]);
- y = ynorm(y + diroff[val][1]);
+ for (;;) {
getsect(x, y, §);
- over = getnatp(sect.sct_own);
- if (opt_HIDDEN) {
- setcont(plane_owner, sect.sct_own, FOUND_FLY);
+ 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 = pln_caps(bomb_list);
+ if (opt_HIDDEN)
+ setcont(plane_owner, sect.sct_own, FOUND_FLY);
if (sect.sct_type == SCT_WATER) {
PR(plane_owner, "flying over %s at %s\n",
dchr[sect.sct_type].d_name, xyas(x, y, plane_owner));
if (mission_flags & PM_S)
plane_sweep(bomb_list, x, y);
- if (mission_flags & P_A) {
+ if (flags & P_A)
plane_sona(bomb_list, x, y, &head);
- }
changed += map_set(plane_owner,
sect.sct_x, sect.sct_y,
dchr[sect.sct_type].d_mnem, 0);
- } else if (mission_flags & P_S) {
- satdisp(§, (mission_flags & P_I) ? 10 : 50, 1);
+ } else if (flags & P_S) {
+ satdisp_sect(§, flags & P_I ? 10 : 50);
} else {
/* This is borrowed from lookout */
if (sect.sct_own == plane_owner)
PR(plane_owner, "Your ");
else
- PR(plane_owner,
- "%s (#%d) ", cname(sect.sct_own), sect.sct_own);
- PR(plane_owner, dchr[sect.sct_type].d_name);
+ PR(plane_owner, "%s (#%d) ",
+ cname(sect.sct_own), sect.sct_own);
+ PR(plane_owner, "%s", dchr[sect.sct_type].d_name);
changed += map_set(plane_owner,
sect.sct_x, sect.sct_y,
dchr[sect.sct_type].d_mnem, 0);
mil : roundintby(mil, 25));
PR(plane_owner, "@ %s\n", xyas(x, y, plane_owner));
}
+ 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));
- changed += map_set(plane_owner, sect.sct_x,
- sect.sct_y, dchr[sect.sct_type].d_mnem, 0);
+ changed += map_set(plane_owner, sect.sct_x, sect.sct_y,
+ dchr[sect.sct_type].d_mnem, 0);
}
- if ((rel = getrel(over, plane_owner)) == ALLIED)
- continue;
evaded = do_evade(bomb_list, esc_list);
-
- if (sect.sct_own != 0 && sect.sct_own != plane_owner && (!evaded)) {
- /* We only show planes overhead if they didn't
- * evade radar */
+ 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));
- }
+ 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 (!evaded) {
/* Fire flak */
- if (unfriendly[sect.sct_own])
+ 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]));
+ }
}
- /* mission planes aborted due to flak -- don't send escorts */
- if (QEMPTY(bomb_list))
- break;
- if ((!no_air_defense) && (!evaded))
- air_defense(x, y, plane_owner, bomb_list, esc_list);
-
- if (sect.sct_own == 0 || sect.sct_own == plane_owner)
- continue;
-
- if (evaded)
- continue;
-
- non_missiles = 0;
- for (qp = bomb_list->q_forw; qp != bomb_list; qp = qp->q_forw) {
- struct plist *ip = (struct plist *)qp;
- if (!(plchr[(int)ip->plane.pln_type].pl_flags & P_M))
- non_missiles = 1;
- }
-
- if (!non_missiles)
- continue;
- if (unfriendly[sect.sct_own] && !gotilist[sect.sct_own]) {
- getilist(&ilist[sect.sct_own], sect.sct_own,
- bomb_list, esc_list, obomb, oesc);
- gotilist[sect.sct_own]++;
- }
- if (rel > HOSTILE)
- continue;
- ac_intercept(bomb_list, esc_list, &ilist[sect.sct_own],
- sect.sct_own, x, y);
- intown = sect.sct_own;
+ 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)
- if (!update_pending && plane_owner == player->cnum)
- writemap(player->cnum);
- /* Now, if the bomber and escort lists are empty, we are done */
- if (QEMPTY(bomb_list) && QEMPTY(esc_list)) {
- if (mission_flags & P_A) {
- s = head.next;
- while (s != (struct shiplook *)0) {
- s2 = s;
- s = s->next;
- free(s2);
- }
- }
- return;
- }
-
- /* 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, (s_char *)&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, (s_char *)&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;
- intown = -1;
- /* Are there ships owned by this country? */
- if (nats[cn] != 0) {
- /* Yes. */
- if (cn != 0)
- PR(cn, "%s planes spotted over ships in %s\n",
- cname(plane_owner), xyas(x, y, cn));
- if (unfriendly[cn]) {
- /* They are unfriendly too */
- if (!gotilist[cn]) {
- getilist(&ilist[cn], cn, bomb_list, esc_list, obomb,
- oesc);
- gotilist[cn]++;
- }
- PR(plane_owner, "Flying over %s ships in %s\n", cname(cn),
- xyas(x, y, plane_owner));
- /* This makes going for ships in harbors tough */
- if (!evaded) {
- /* We already fired flak up above. Now we intercept again if we haven't already */
- /* Flag that we intercepted */
- intown = 1;
- /* And now intercept again */
- ac_intercept(bomb_list, esc_list, &ilist[cn], cn, x,
- y);
- }
- }
- }
- /* Are there units owned by this country? */
- if (lnats[cn] != 0) {
- /* Yes. */
- if (cn != 0)
- PR(cn, "%s planes spotted over land units in %s\n",
- cname(plane_owner), xyas(x, y, cn));
- if (unfriendly[cn]) {
- /* They are unfriendly too */
- if (!gotilist[cn]) {
- getilist(&ilist[cn], cn, bomb_list, esc_list, obomb,
- oesc);
- gotilist[cn]++;
- }
- PR(plane_owner, "Flying over %s land units in %s\n",
- cname(cn), xyas(x, y, plane_owner));
- if (!evaded) {
- if (intown == -1) {
- /* We haven't intercepted yet, so intercept */
- ac_intercept(bomb_list, esc_list, &ilist[cn], cn,
- x, y);
- }
- }
- }
- }
- }
-
- if ((mission_flags & P_A) && (head.uid != -1)) {
- s = head.next;
- while (s != (struct shiplook *)0) {
- s2 = s;
- s = s->next;
- free(s2);
- }
- }
-}
-
-static int
-count_non_missiles(struct emp_qelem *list)
-{
- struct emp_qelem *qp;
- struct plist *plp;
- int att_count = 0;
+ writemap(player->cnum);
- /* don't intercept missiles */
- for (qp = list->q_forw; qp != list; qp = qp->q_forw) {
- plp = (struct plist *)qp;
- if (!(plp->pcp->pl_flags & P_M))
- att_count++;
- }
- return att_count;
+ free_shiplist(&head);
+ 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,
aqp != att_list && dqp != def_list; aqp = anext) {
anext = aqp->q_forw;
aplp = (struct plist *)aqp;
- if (aplp->pcp->pl_flags & P_M)
- continue;
if (aplp->pcp->pl_cost < 1000)
continue;
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)) {
- emp_remque(dqp);
- free((s_char *)dqp);
+ if (only_mission && !pp->pln_mission)
continue;
- }
- if (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((s_char *)dqp);
+ free(dqp);
continue;
}
+ 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(def_own, "Launching SAMs at %s planes!\n",
- cname(plane_owner));
+ PR(def_own, "Launching SAMs at %s planes over %s!\n",
+ cname(plane_owner), xyas(x, y, def_own));
ac_combat_headers(plane_owner, def_own);
}
ac_dog(aplp, dplp);
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((s_char *)dqp);
- continue;
- }
- }
}
-void
+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;
- icount = 0;
-
- 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, 1);
- if (!(att_count = count_non_missiles(bomb_list) +
- count_non_missiles(esc_list)))
+ 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)
+ att_count++;
+ for (qp = esc_list->q_forw; qp != esc_list; qp = qp->q_forw)
+ att_count++;
+ if (!att_count)
return;
emp_initque(&int_list);
+ icount = 0;
for (qp = def_list->q_forw; qp != def_list; qp = next) {
next = qp->q_forw;
plp = (struct plist *)qp;
/* 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 (mission_pln_equip(plp, 0, P_F, 0) < 0) {
+ 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, NULL, 0) < 0) {
emp_remque(qp);
- free((s_char *)qp);
+ free(qp);
continue;
}
/* got one; delete from def_list, add to int_list */
emp_remque(qp);
emp_insque(qp, &int_list);
- pp->pln_mobil -= pln_mobcost(dist, pp, P_F);
+ pp->pln_flags |= PLN_LAUNCHED;
+ pp->pln_mobil -= pln_mobcost(dist, pp, 0);
putplane(pp->pln_uid, pp);
icount++;
if (icount > att_count)
}
if (icount == 0)
return;
- PR(plane_owner, "%d %s fighter%s rising to intercept!\n", icount,
- cname(def_own), icount == 1 ? " is" : "s are");
- PR(def_own, "%d fighter%s intercepting %s planes!\n", icount,
- icount == 1 ? " is" : "s are", cname(plane_owner));
+ PR(plane_owner, "%d %s fighter%s rising to intercept!\n",
+ icount, cname(def_own), icount == 1 ? " is" : "s are");
+ PR(def_own, "%d fighter%s intercepting %s planes over %s!\n",
+ icount, icount == 1 ? " is" : "s are", cname(plane_owner),
+ xyas(x, y, def_own));
ac_combat_headers(plane_owner, def_own);
ac_airtoair(esc_list, &int_list);
ac_airtoair(bomb_list, &int_list);
PR(plane_owner, "\n");
PR(def_own, "\n");
+ 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;
in_next = in->q_forw;
att_next = att->q_forw;
attacker = (struct plist *)att;
-
- /* skip missiles. If only missiles left, we're done */
- if (plchr[(int)attacker->plane.pln_type].pl_flags & P_M) {
- att = att_next;
- if (att == att_list) {
- more_att = 0;
- if (QEMPTY(att_list))
- more_int = 0;
- else
- att = att->q_forw;
- }
- if (all_missiles(att_list))
- more_att = 0;
- continue;
- }
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;
}
}
-int
-all_missiles(struct emp_qelem *att_list)
-{
- struct emp_qelem *qp;
- struct plist *p;
-
- qp = att_list->q_forw;
- while (qp != att_list) {
- p = (struct plist *)qp;
- if (!(plchr[(int)p->plane.pln_type].pl_flags & P_M))
- return 0;
-
- qp = qp->q_forw;
- }
- return 1;
-}
-
static void
ac_dog(struct plist *ap, struct plist *dp)
{
int intensity;
natid att_own, def_own;
int adam, ddam;
- s_char mesg[1024];
- s_char temp[14];
+ char mesg[1024];
+ char temp[14];
att_own = ap->plane.pln_own;
def_own = dp->plane.pln_own;
PR(def_own, " %3.3s #%-4d %3.3s #%-4d",
dp->pcp->pl_name,
dp->plane.pln_uid, ap->pcp->pl_name, ap->plane.pln_uid);
- if (ap->plane.pln_att == 0) {
- att = ap->plane.pln_def * ap->plane.pln_effic / 100;
- att = MAX(att, ap->pcp->pl_def / 2);
- } else {
- att = ap->plane.pln_att * ap->plane.pln_effic / 100;
- att = MAX(att, ap->pcp->pl_att / 2);
- }
+ att = pln_att(&ap->plane);
+ if (att == 0)
+ att = pln_def(&ap->plane);
+ att = att * ap->plane.pln_effic / 100;
+ att = MAX(att, ap->pcp->pl_def / 2);
- def = dp->plane.pln_def * dp->plane.pln_effic / 100;
+ 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 += ((float)ap->pcp->pl_stealth / 25.0);
- def += ((float)dp->pcp->pl_stealth / 25.0);
+ att += ap->pcp->pl_stealth / 25.0;
+ def += dp->pcp->pl_stealth / 25.0;
if (att < 1) {
def += 1 - att;
att = 1;
PR(att_own, "%3d/%-3d", adam, ddam);
PR(def_own, "%3d/%-3d", ddam, adam);
- ac_planedamage(ap, dp->plane.pln_own, adam, def_own, 1, 0, mesg);
+ ac_planedamage(ap, def_own, adam, def_own, 1, 0, mesg);
strncpy(temp, mesg, 14);
- ac_planedamage(dp, ap->plane.pln_own, ddam, att_own, 1, 0, mesg);
+ ac_planedamage(dp, att_own, ddam, att_own, 1, 0, mesg);
PR(att_own, "%-13.13s %-13.13s\n", temp, mesg);
PR(def_own, "%-13.13s %-13.13s\n", mesg, temp);
+
+ if (opt_HIDDEN) {
+ setcont(att_own, def_own, FOUND_FLY);
+ setcont(def_own, att_own, FOUND_FLY);
+ }
}
/*
* that the current queue pointer is invalid on return from the ac_planedamage
* call. (this has caused bugs in the past)
*/
-void
+static void
ac_planedamage(struct plist *plp, natid from, int dam, natid other,
- int checkabort, int show, s_char *mesg)
+ int checkabort, int show, char *mesg)
{
struct plnstr *pp;
int disp;
- s_char dmess[255];
+ char dmess[255];
int eff;
- struct shpstr ship;
- struct lndstr land;
- /* s_char *sprintf(); already in misc.h [JFW] */
natid plane_owner;
disp = 0;
if (eff < PLANE_MINEFF) {
sprintf(dmess, " shot down");
disp = 1;
- } else if (eff < 80 && chance((100 - eff) / 100.0) && checkabort) {
+ } else if (eff < 80 && chance((80 - eff) / 100.0) && checkabort) {
sprintf(dmess, " aborted @%2d%%", eff);
disp = 2;
} else if (show == 0) {
}
pp->pln_effic = eff;
- pp->pln_mobil -= min(32 + pp->pln_mobil, dam / 2);
- if (disp == 1) {
- if (from != 0 && (plp->pcp->pl_flags & P_M) == 0)
+ pp->pln_mobil -= MIN(32 + pp->pln_mobil, dam / 2);
+ if (disp) {
+ if (disp == 1 && from != 0 && (plp->pcp->pl_flags & P_M) == 0)
nreport(from, N_DOWN_PLANE, pp->pln_own, 1);
- if (pp->pln_ship >= 0) {
- getship(pp->pln_ship, &ship);
- take_plane_off_ship(pp, &ship);
- }
- if (pp->pln_land >= 0) {
- getland(pp->pln_land, &land);
- take_plane_off_land(pp, &land);
- }
- makelost(EF_PLANE, pp->pln_own, pp->pln_uid, pp->pln_x, pp->pln_y);
- pp->pln_own = 0;
- putplane(pp->pln_uid, pp);
- emp_remque(&plp->queue);
- free((s_char *)plp);
- } else if (disp == 2) {
- putplane(pp->pln_uid, pp);
- emp_remque(&plp->queue);
- free((s_char *)plp);
+ pln_put1(plp);
} else
putplane(pp->pln_uid, pp);
strcpy(mesg, dmess);
}
-void
+static void
ac_doflak(struct emp_qelem *list, struct sctstr *from)
{
- int shell;
int gun;
natid plane_owner;
struct plist *plp;
plp = (struct plist *)list->q_forw;
plane_owner = plp->plane.pln_own;
- gun = from->sct_item[I_GUN];
- shell = from->sct_item[I_SHELL];
- if (gun > 14)
- gun = 14;
- 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 = 2.0 * tfact(from->sct_own, gun);
+ gun = MIN(FLAK_GUN_MAX, from->sct_item[I_GUN]);
+ gun = roundavg(tfact(from->sct_own, 2.0 * gun));
if (gun > 0) {
PR(plane_owner, "firing %d flak guns in %s...\n",
gun, xyas(from->sct_x, from->sct_y, plane_owner));
if (from->sct_own != 0)
PR(from->sct_own, "firing %d flak guns in %s...\n",
gun, xyas(from->sct_x, from->sct_y, from->sct_own));
- ac_fireflak(list, from->sct_own, 0, gun);
+ ac_fireflak(list, from->sct_own, gun);
}
}
-void
+static void
ac_shipflak(struct emp_qelem *list, coord x, coord y)
{
struct nstr_item ni;
struct shpstr ship;
struct mchrstr *mcp;
- int firing;
- int guns;
+ double flak, total, ngun;
int gun;
- int shell;
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));
- guns = 0;
+ total = ngun = 0;
snxtitem_xy(&ni, EF_SHIP, x, y);
- while (!QEMPTY(list) && nxtitem(&ni, (s_char *)&ship)) {
+ while (!QEMPTY(list) && nxtitem(&ni, &ship)) {
if (ship.shp_own == 0 || ship.shp_own == plane_owner)
continue;
- if (guns >= 14)
- break;
mcp = &mchr[(int)ship.shp_type];
if (mcp->m_flags & M_SUB)
continue;
rel = getrel(getnatp(ship.shp_own), plane_owner);
if (rel > HOSTILE)
continue;
- shell = gun = 0;
- gun = min(ship.shp_item[I_GUN], ship.shp_glim);
- 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)
+ gun = shp_usable_guns(&ship);
+ if (gun == 0)
continue;
- firing = (int)(techfact(ship.shp_tech, (double)gun) * 2.0);
- guns += firing;
-
- 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 %d flak guns from %s...\n",
- firing, prship(&ship));
+ flak = gun * (ship.shp_effic / 100.0);
+ ngun += flak;
+ total += techfact(ship.shp_tech, flak * 2.0);
+
+ PR(ship.shp_own, "firing %.0f flak guns from %s...\n",
+ flak, prship(&ship));
from = ship.shp_own;
}
- if (guns > 0) {
- if (guns > 14)
- guns = 14;
- guns = 2.0 * tfact(from, (double)guns);
- PR(plane_owner, "Flak! Ships firing %d flak guns...\n", guns);
- ac_fireflak(list, from, 0, guns);
+
+ /* Limit to FLAK_GUN_MAX guns of average tech factor */
+ if (ngun > FLAK_GUN_MAX)
+ total *= FLAK_GUN_MAX / ngun;
+
+ gun = roundavg(total);
+ if (gun > 0) {
+ PR(plane_owner, "Flak! Ships firing %d flak guns...\n", gun);
+ ac_fireflak(list, from, gun);
}
}
-void
+static void
ac_landflak(struct emp_qelem *list, coord x, coord y)
{
struct nstr_item ni;
struct lndstr land;
struct lchrstr *lcp;
- int firing;
- int guns;
+ double flak, total, ngun;
+ int aaf, gun;
int rel;
- natid from;
struct plist *plp;
natid plane_owner;
- int nats[MAXNOC];
+ natid from;
plp = (struct plist *)list->q_forw;
plane_owner = plp->plane.pln_own;
- memset(nats, 0, sizeof(nats));
- guns = 0;
+ total = ngun = 0;
snxtitem_xy(&ni, EF_LAND, x, y);
- while (!QEMPTY(list) && nxtitem(&ni, (s_char *)&land)) {
+ while (!QEMPTY(list) && nxtitem(&ni, &land)) {
if (land.lnd_own == 0 || land.lnd_own == plane_owner)
continue;
- if (guns >= 14)
- break;
lcp = &lchr[(int)land.lnd_type];
-
- if ((lcp->l_flags & L_FLAK) == 0)
+ aaf = lnd_aaf(&land);
+ if ((lcp->l_flags & L_FLAK) == 0 || aaf == 0)
continue;
-
- if (land.lnd_aaf == 0)
+ if (land.lnd_ship >= 0 || land.lnd_land >= 0)
continue;
-
rel = getrel(getnatp(land.lnd_own), plane_owner);
if (rel > HOSTILE)
continue;
- firing =
- (int)(techfact(land.lnd_tech, (double)land.lnd_aaf) * 3.0);
- guns += firing;
-
- 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), land.lnd_aaf);
+ flak = aaf * 1.5 * land.lnd_effic / 100.0;
+ ngun += flak;
+ total += techfact(land.lnd_tech, flak * 2.0);
- from = land.lnd_own; /* We always use the last owner as the from */
+ PR(land.lnd_own, "firing flak guns from unit %s (aa rating %d)\n",
+ prland(&land), aaf);
+ from = land.lnd_own;
}
- if (guns > 0) {
- if (guns > 14)
- guns = 14;
- guns = 2.0 * tfact(from, (double)guns);
- PR(plane_owner, "Flak! Land units firing %d flak guns...\n",
- guns);
- ac_fireflak(list, from, 0, guns);
+
+ /* Limit to FLAK_GUN_MAX guns of average tech factor */
+ if (ngun > FLAK_GUN_MAX)
+ total *= FLAK_GUN_MAX / ngun;
+
+ gun = roundavg(total);
+ if (gun > 0) {
+ PR(plane_owner, "Flak! Land units firing %d flak guns...\n", gun);
+ ac_fireflak(list, from, gun);
}
}
/*
* Called from shipflak, landflak, and doflak.
*/
-void
-ac_fireflak(struct emp_qelem *list, natid from, natid other, int guns)
+static void
+ac_fireflak(struct emp_qelem *list, natid from, int guns)
{
- struct plnstr *pp;
struct plist *plp;
int n;
- float mult;
- int diff;
struct emp_qelem *qp;
struct emp_qelem *next;
- s_char msg[255];
-
- plp = (struct plist *)list->q_forw;
+ char msg[255];
for (qp = list->q_forw; qp != list; qp = next) {
- /*
- * fighters don't get shot at by flak
- * non-tactical bombers are harder to hit with flak.
- * ('Cause they're not dive-bombing?)
- */
next = qp->q_forw;
plp = (struct plist *)qp;
- pp = &plp->plane;
- diff = guns - pp->pln_def;
- if ((plp->pcp->pl_flags & P_T) == 0)
- diff--;
- if (plp->pcp->pl_flags & P_X)
- diff -= 2;
- if (plp->pcp->pl_flags & P_H)
- diff -= 1;
- if (diff > 8)
- mult = flaktable[FLAK_MAX] * 1.33;
- else if (diff < -7)
- mult = flaktable[0] * 0.66;
- else {
- diff += 7;
- mult = flaktable[diff];
- }
- mult *= flakscale;
- n = (int)((roll(8) + 2) * mult);
- if (n > 100)
- n = 100;
- ac_planedamage(plp, from, n, other, 2, 1, msg);
+ n = ac_flak_dam(guns, pln_def(&plp->plane), plp->pcp->pl_flags);
+ ac_planedamage(plp, from, n, 0, 2, 1, msg);
}
}
/*
- * See if this plane is flying in this list
+ * Calculate flak damage
*/
int
-ac_isflying(struct plnstr *plane, struct emp_qelem *list)
+ac_flak_dam(int guns, int def, int pl_flags)
{
- struct emp_qelem *qp;
- struct emp_qelem *next;
- struct plnstr *pp;
- struct plist *plp;
-
- if (!list)
- return 0;
- for (qp = list->q_forw; qp != list; qp = next) {
- next = qp->q_forw;
- plp = (struct plist *)qp;
- pp = &plp->plane;
- if (plane->pln_uid == pp->pln_uid)
- return 1;
- }
- return 0;
+ int flak, dam;
+ float mult;
+ /* <-7 -7 -6 -5 -4 */
+ static float flaktable[18] = { 0.132f, 0.20f, 0.20f, 0.25f, 0.30f,
+ /* -3 -2 -1 0 +1 +2 +3 +4 */
+ 0.35f, 0.40f, 0.45f, 0.50f, 0.50f, 0.55f, 0.60f, 0.65f,
+ /* +5 +6 +7 +8 >+8 */
+ 0.70f,0.75f, 0.80f, 0.85f, 1.1305f };
+ enum { FLAK_MAX = sizeof(flaktable)/sizeof(flaktable[0]) - 1 };
+
+ flak = guns - def;
+ if ((pl_flags & P_T) == 0)
+ flak--;
+
+ if (flak > 8)
+ mult = flaktable[FLAK_MAX];
+ else if (flak < -7)
+ mult = flaktable[0];
+ else {
+ flak += 8;
+ mult = flaktable[flak];
+ }
+ mult *= flakscale;
+ dam = (int)((roll(8) + 2) * mult);
+ if (dam > 100)
+ dam = 100;
+ return dam;
}
-
/*
- * Get a list of planes available for interception duties.
+ * Get planes available for interception duties.
*/
static void
-getilist(struct emp_qelem *list, natid own, struct emp_qelem *a,
- struct emp_qelem *b, struct emp_qelem *c, struct emp_qelem *d)
+getilists(struct emp_qelem *list, unsigned char *rel, natid intruder)
{
+ natid cn;
struct plchrstr *pcp;
struct plnstr plane;
- struct shpstr ship;
- struct lndstr land;
- struct sctstr sect;
struct nstr_item ni;
- int petrol;
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, (s_char *)&plane)) {
- if (plane.pln_own != own)
+ while (nxtitem(&ni, &plane)) {
+ if (rel[plane.pln_own] > HOSTILE)
continue;
pcp = &plchr[(int)plane.pln_type];
if ((pcp->pl_flags & P_F) == 0)
continue;
- if (plane.pln_mission != 0)
+ if (plane.pln_flags & PLN_LAUNCHED)
+ continue;
+ if (plane.pln_mission && plane.pln_mission != MI_AIR_DEFENSE)
continue;
if (plane.pln_mobil <= 0)
continue;
if (plane.pln_effic < 40)
continue;
- if (plane.pln_ship >= 0) {
- if (!can_fly(plane.pln_uid))
- continue;
- getship(plane.pln_ship, &ship);
- petrol = ship.shp_item[I_PETROL];
- } else if (plane.pln_land >= 0) {
- if (!can_fly(plane.pln_uid))
- continue;
- getland(plane.pln_land, &land);
- petrol = land.lnd_item[I_PETROL];
- } else {
- getsect(plane.pln_x, plane.pln_y, §);
- petrol = sect.sct_item[I_PETROL];
- if ((sect.sct_effic < 60 || sect.sct_type != SCT_AIRPT)
- && (pcp->pl_flags & P_V) == 0)
- continue;
- }
- if ((float)petrol < (float)pcp->pl_fuel / 2.0)
- continue;
- /* Finally, is it in the list of planes already in
- flight? */
- if (ac_isflying(&plane, a))
- continue;
- if (ac_isflying(&plane, b))
- continue;
- if (ac_isflying(&plane, c))
- continue;
- if (ac_isflying(&plane, d))
+ if (!pln_airbase_ok(&plane, 0, 0))
continue;
/* got one! */
- ip = (struct plist *)malloc(sizeof(*ip));
- ip->state = P_OK;
- ip->bombs = 0;
- ip->misc = 0;
+ ip = malloc(sizeof(*ip));
+ ip->load = 0;
ip->pcp = &plchr[(int)plane.pln_type];
ip->plane = plane;
- emp_insque(&ip->queue, list);
- }
-}
-
-
-
-int
-can_fly(int p)
-{ /* Can this plane fly from the ship or land unit it is on? */
- struct plnstr plane;
- struct shpstr ship;
- struct lndstr land;
- struct plchrstr *pcp;
- struct mchrstr *scp;
- struct lchrstr *lcp;
-
- getplane(p, &plane);
- pcp = &plchr[(int)plane.pln_type];
-
- if (plane.pln_ship >= 0) {
- if (!(pcp->pl_flags & P_L) && !(pcp->pl_flags & P_M)
- && !(pcp->pl_flags & P_K)
- && !(pcp->pl_flags & P_E)
- )
- return 0;
-
- getship(plane.pln_ship, &ship);
- scp = &mchr[(int)ship.shp_type];
-
- if ((pcp->pl_flags & P_L) && (scp->m_flags & M_FLY)) {
- return 1;
- }
-
- if ((pcp->pl_flags & P_M) && (scp->m_flags & M_MSL)) {
- return 1;
- }
-
- if ((pcp->pl_flags & P_K) && (scp->m_flags & M_CHOPPER)) {
- return 1;
- }
-
- if ((pcp->pl_flags & P_E) && (scp->m_flags & M_XLIGHT)) {
- return 1;
- }
- }
-
- if (plane.pln_land >= 0) {
- if (!(pcp->pl_flags & P_E))
- return 0;
-
- getland(plane.pln_land, &land);
- lcp = &lchr[(int)land.lnd_type];
-
- if ((pcp->pl_flags & P_E) && (lcp->l_flags & L_XLIGHT)) {
- return 1;
- }
+ emp_insque(&ip->queue, &list[plane.pln_own]);
}
-
- return 0;
}
-int
+static int
do_evade(struct emp_qelem *bomb_list, struct emp_qelem *esc_list)
{
struct emp_qelem *qp;
evade = 100.0;
for (qp = bomb_list->q_forw; qp != bomb_list; qp = qp->q_forw) {
plp = (struct plist *)qp;
- if (evade > ((float)plp->pcp->pl_stealth / 100.0))
- evade = (plp->pcp->pl_stealth / 100.0);
+ if (evade > plp->pcp->pl_stealth / 100.0)
+ evade = plp->pcp->pl_stealth / 100.0;
}
for (qp = esc_list->q_forw; qp != esc_list; qp = qp->q_forw) {
plp = (struct plist *)qp;
if (evade > plp->pcp->pl_stealth / 100.0)
- evade = (plp->pcp->pl_stealth / 100.0);
+ evade = plp->pcp->pl_stealth / 100.0;
}
if (chance(evade))
projects / empserver / blobdiff