/*
* 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
* ---
*
* shpsub.c: Ship subroutine stuff
- *
+ *
* Known contributors to this file:
* Ken Stevens, 1995
* Steve McClure, 1996-2000
- * Markus Armbruster, 2006
+ * Markus Armbruster, 2006-2009
*/
#include <config.h>
#include "unit.h"
static int shp_check_one_mines(struct ulist *);
-static int shp_hit_mine(struct shpstr *, struct mchrstr *);
+static int shp_hit_mine(struct shpstr *);
static void shp_mess(char *, struct ulist *);
void
shp_sel(struct nstr_item *ni, struct emp_qelem *list)
-
-
- /* int wantflags;
- int nowantflags;
- */
{
struct shpstr ship;
struct mchrstr *mcp;
if (!player->owner)
continue;
mcp = &mchr[(int)ship.shp_type];
- /* if (wantflags && (mcp->m_flags & wantflags) != wantflags)
- continue;
- if (nowantflags && mcp->m_flags & nowantflags)
- continue;
- */
if (opt_MARKET) {
if (ontradingblock(EF_SHIP, &ship)) {
pr("ship #%d inelligible - it's for sale.\n",
continue;
}
}
- /* This abuse is better fixed by building a ship with the normal negative
- mobility that everything else is built with */
-/*
- if (opt_MOB_ACCESS) {
- if (ship.shp_effic < 21 &&
- ship.shp_mobil < etu_per_update) {
- pr("%s needs at least %d mob to navigate.\n",
- prship(&ship), etu_per_update);
- continue;
- }
- }
-*/
ship.shp_mission = 0;
ship.shp_rflags = 0;
memset(ship.shp_rpath, 0, sizeof(ship.shp_rpath));
}
sect.sct_mines = mines;
mlp->unit.ship.shp_item[I_SHELL] = shells;
+ putship(mlp->unit.ship.shp_uid, &mlp->unit.ship);
+ putsect(§);
if (shp_check_one_mines(mlp)) {
stopping = 1;
emp_remque(qp);
free(qp);
}
- putship(mlp->unit.ship.shp_uid, &mlp->unit.ship);
- putsect(§);
}
if (changed)
writemap(actor);
return 0;
if (chance(DMINE_HITCHANCE(sect.sct_mines))) {
actor = mlp->unit.ship.shp_own;
- shp_hit_mine(&mlp->unit.ship, ((struct mchrstr *)mlp->chrp));
+ shp_hit_mine(&mlp->unit.ship);
sect.sct_mines--;
if (map_set(actor, sect.sct_x, sect.sct_y, 'X', 0))
writemap(actor);
}
static struct ulist *
-most_valuable_ship(struct emp_qelem *list)
+most_valuable_ship(struct emp_qelem *list, coord x, coord y)
{
struct emp_qelem *qp;
struct emp_qelem *next;
struct ulist *mlp;
- struct ulist *mvs = 0;
+ struct ulist *mvs = NULL;
for (qp = list->q_back; qp != list; qp = next) {
next = qp->q_back;
mlp = (struct ulist *)qp;
+ if (mlp->unit.ship.shp_x != x || mlp->unit.ship.shp_y != y)
+ continue;
if (((struct mchrstr *)mlp->chrp)->m_flags & M_SUB)
continue;
if (!((struct mchrstr *)mlp->chrp)->m_nxlight &&
shp_missile_interdiction(struct emp_qelem *list, coord newx, coord newy,
natid victim)
{
- int dam;
- int twotries;
+ int dam, sublaunch;
int stopping = 0;
struct emp_qelem msl_list, *qp, *newqp;
+ struct plist *plp;
struct ulist *mvs;
- char what[512];
+
+ mvs = most_valuable_ship(list, newx, newy);
+ if (!mvs)
+ return 0;
msl_sel(&msl_list, newx, newy, victim, P_T | P_MAR, 0, MI_INTERDICT);
- twotries = 0;
- while (!QEMPTY(&msl_list) && (mvs = most_valuable_ship(list))) {
- sprintf(what, "%s", prship(&mvs->unit.ship));
- dam = msl_launch_mindam(&msl_list, newx, newy,
- shp_hardtarget(&mvs->unit.ship),
- EF_SHIP, 1, what, victim, MI_INTERDICT);
- if (dam) {
- mpr(victim,
- "missile interdiction mission does %d damage to %s!\n",
- dam, what);
- shp_damage_one(mvs, dam);
- twotries = 0;
- stopping |= 1;
- } else if (++twotries >= 2) {
- break;
+ for (qp = msl_list.q_back; qp != &msl_list; qp = newqp) {
+ newqp = qp->q_back;
+ plp = (struct plist *)qp;
+
+ if (mvs && mission_pln_equip(plp, NULL, 'p') >= 0) {
+ if (msl_launch(&plp->plane, EF_SHIP, prship(&mvs->unit.ship),
+ newx, newy, victim, &sublaunch) < 0)
+ goto use_up_msl;
+ stopping = 1;
+ if (msl_hit(&plp->plane,
+ shp_hardtarget(&mvs->unit.ship), EF_SHIP,
+ N_SHP_MISS, N_SHP_SMISS, sublaunch, victim)) {
+ dam = pln_damage(&plp->plane, 'p', 1);
+ if (dam) {
+ mpr(victim,
+ "missile interdiction mission does %d damage to %s!\n",
+ dam, prship(&mvs->unit.ship));
+ shp_damage_one(mvs, dam);
+ }
+ } else {
+ dam = pln_damage(&plp->plane, 'p', 0);
+ collateral_damage(newx, newy, dam);
+ }
+ mvs = most_valuable_ship(list, newx, newy);
+ use_up_msl:
+ plp->plane.pln_effic = 0;
+ putplane(plp->plane.pln_uid, &plp->plane);
}
- }
- qp = msl_list.q_forw;
- while (qp != msl_list.q_forw) {
- newqp = qp->q_forw;
emp_remque(qp);
free(qp);
- qp = newqp;
}
return stopping;
struct sctstr fsect;
int trange, range;
int dam;
+ int stopping = 0;
int totdam = 0;
signed char notified[MAXNOC];
int i;
putsect(&fsect);
if (dam < 0)
continue;
+ stopping = 1;
totdam += dam;
mpr(victim, "Incoming fire does %d damage!\n", dam);
-/*
- mpr(victim, "%s fires at you for %d!\n",
- xyas(fsect.sct_x,fsect.sct_y,victim),
- dam);
-*/
+#if 0
+ mpr(victim, "%s fires at you for %d!\n",
+ xyas(fsect.sct_x,fsect.sct_y,victim),
+ dam);
+#endif
wu(0, fsect.sct_own,
"%s fires at %s ships in %s for %d!\n",
xyas(fsect.sct_x, fsect.sct_y,
nreport(fsect.sct_own, N_SHP_SHELL, victim, 1);
}
if (totdam > 0)
- return shp_damage(list, totdam, 0, M_SUB, newx, newy);
- return 0;
+ shp_damage(list, totdam, 0, M_SUB, newx, newy);
+ return stopping;
+}
+
+static int
+shp_mission_interdiction(struct emp_qelem *list, coord x, coord y,
+ natid victim, int subs)
+{
+ char *what = subs ? "subs" : "ships";
+ int wantflags = subs ? M_SUB : 0;
+ int nowantflags = subs ? 0 : M_SUB;
+ int mission = subs ? MI_SINTERDICT : MI_INTERDICT;
+ int dam;
+
+ dam = unit_interdict(x, y, victim, what,
+ shp_easiest_target(list, wantflags, nowantflags),
+ mission);
+ if (dam >= 0)
+ shp_damage(list, dam, wantflags, nowantflags, x, y);
+ return dam >= 0;
}
static int
stopping |= shp_fort_interdiction(list, newx, newy, victim);
if (shp_contains(list, newx, newy, 0, M_SUB)) {
- stopping |=
- shp_damage(list,
- unit_interdict(newx, newy, victim, "ships",
- shp_easiest_target(list, 0, M_SUB),
- MI_INTERDICT),
- 0, M_SUB, newx, newy);
- if (most_valuable_ship(list)) {
- stopping |=
- shp_missile_interdiction(list, newx, newy, victim);
- }
+ stopping |= shp_mission_interdiction(list, newx, newy, victim, 0);
+ stopping |= shp_missile_interdiction(list, newx, newy, victim);
}
}
- if (shp_contains(list, newx, newy, M_SUB, 0)) {
- stopping |=
- shp_damage(list,
- unit_interdict(newx, newy, victim, "subs",
- shp_easiest_target(list, M_SUB, 0),
- MI_SINTERDICT),
- M_SUB, 0, newx, newy);
- }
+ if (shp_contains(list, newx, newy, M_SUB, 0))
+ stopping |= shp_mission_interdiction(list, newx, newy, victim, 1);
return stopping;
}
}
static int
-shp_hit_mine(struct shpstr *sp, struct mchrstr *mcp)
+shp_hit_mine(struct shpstr *sp)
{
double m;
nreport(sp->shp_own, N_HIT_MINE, 0, 1);
m = MINE_DAMAGE();
- if (mcp->m_flags & M_SWEEP)
+ if (mchr[sp->shp_uid].m_flags & M_SWEEP)
m /= 2.0;
shipdamage(sp, ldround(m, 1));
}
/*
- * shp_miss_defence
- * Check for incoming missiles with a P_MAR flag.
+ * shp_miss_defence
+ * Check for incoming missiles with a P_MAR flag.
* Return True=1 if the missile was shotdown.
* Or False=0
- *
+ *
* Chad Zabel, July 95
*/
struct nstr_item ni;
struct shpstr ship;
int hitchance;
- int shell;
double gun, eff, teff;
snxtitem_dist(&ni, EF_SHIP, dx, dy, 1);
if (ship.shp_effic < 60)
continue;
- shell = ship.shp_item[I_SHELL];
if (ship.shp_item[I_MILIT] < 1) /* do we have mil? */
continue;
- if (shell < 2) { /* do we need shells */
- shell += supply_commod(ship.shp_own, ship.shp_x, ship.shp_y,
- I_SHELL, 2);
- if (shell < 2)
- continue;
- }
if (ship.shp_item[I_GUN] < 1) /* we need at least 1 gun */
continue;
+ if (!shp_supply(&ship, I_SHELL, 2))
+ continue;
+ ship.shp_item[I_SHELL] -= 2;
+ putship(ship.shp_uid, &ship);
/* now calculate the odds */
gun = shp_usable_guns(&ship);
mpr(ship.shp_own, "Ship #%i anti-missile system activated!\n",
ship.shp_uid);
mpr(ship.shp_own, "%d%% hitchance...", hitchance);
- /* use ammo */
- ship.shp_item[I_SHELL] = shell - 2;
- putship(ship.shp_uid, &ship);
if (roll(100) <= hitchance) {
mpr(bombown, "KABOOOM!! Missile destroyed\n\n");
sprintf(buf, "%s", prship(&mlp->unit.ship));
eff = sp->shp_effic;
- if (most_valuable_ship(&list)) {
- shp_missile_interdiction(&list, sp->shp_x, sp->shp_y, sp->shp_own);
- getship(sp->shp_uid, sp);
-
- if (!sp->shp_own) {
- wu(0, victim,
- "missiles launched in defense did 100%% damage to %s\n",
- buf);
- wu(0, victim, "%s sunk!\n", buf);
- } else if (eff > 0 && sp->shp_effic < eff) {
- wu(0, victim,
- "missiles launched in defense did %d%% damage to %s\n",
- 100 * (eff - sp->shp_effic) / eff, buf);
- }
+ shp_missile_interdiction(&list, sp->shp_x, sp->shp_y, sp->shp_own);
+ getship(sp->shp_uid, sp);
+
+ if (!sp->shp_own) {
+ wu(0, victim,
+ "missiles launched in defense did 100%% damage to %s\n",
+ buf);
+ wu(0, victim, "%s sunk!\n", buf);
+ } else if (eff > 0 && sp->shp_effic < eff) {
+ wu(0, victim,
+ "missiles launched in defense did %d%% damage to %s\n",
+ 100 * (eff - sp->shp_effic) / eff, buf);
}
if (!QEMPTY(&list))
free(mlp);
projects / empserver / blobdiff