Markus Armbruster
eccc5cb7d7
To save space, the ancients invented `variables': a collection of key-value pairs, missing means zero value, space for `enough' keys. This complicates the code, as assigning to a `variable' can fail for lack of space. Over time, `enough' increased, and for quite some time now `variables' have been *wasting* space. This changeset replaces them, except in struct mchrstr, struct lchrstr and struct pchrstr, where they are read-only, and will be replaced later. It is only a first step; further cleanup is required. To simplify and minimize this necessarily huge changeset, the new item[] arrays have an unused slot 0, and the old variable types V_CIVIL, ... are still defined, but must have the same values as the item types I_CIVIL, ...
575 lines
14 KiB
C
575 lines
14 KiB
C
/*
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* Empire - A multi-player, client/server Internet based war game.
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* Copyright (C) 1986-2000, Dave Pare, Jeff Bailey, Thomas Ruschak,
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* Ken Stevens, Steve McClure
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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* ---
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*
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* See the "LEGAL", "LICENSE", "CREDITS" and "README" files for all the
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* related information and legal notices. It is expected that any future
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* projects/authors will amend these files as needed.
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*
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* ---
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*
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* retreat.c: Retreat subroutines
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*
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* Known contributors to this file:
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* Steve McClure, 2000
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*
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*/
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#include <string.h>
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#include "misc.h"
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#include "player.h"
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#include "nat.h"
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#include "var.h"
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#include "retreat.h"
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#include "ship.h"
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#include "land.h"
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#include "sect.h"
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#include "news.h"
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#include "xy.h"
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#include "nsc.h"
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#include "path.h"
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#include "file.h"
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#include "options.h"
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#include "damage.h"
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#include "prototypes.h"
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#include "optlist.h"
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static int findcondition(s_char);
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static int retreat_land1(struct lndstr *, s_char, int);
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static int retreat_ship1(struct shpstr *, s_char, int);
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struct ccode {
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s_char code;
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s_char *desc[2];
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} conditions[] = {
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{
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'i', {
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"retreated with a damaged friend", "was damaged",},}, {
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't', {
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"retreated with a torpedoed ship", "was hit by a torpedo",},}, {
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's', {
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"retreated with a ship scared by sonar",
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"detected a sonar ping",},}, {
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'h', {
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"retreated with a helpless ship",
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"was fired upon with no one able to defend it",},}, {
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'b', {
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"retreated with a bombed friend", "was bombed",},}, {
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'd', {
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"retreated with a depth-charged ship", "was depth-charged",},}, {
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'u', {
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"retreated with a boared ship", "was boarded",},}, {
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0, {
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"", ""}},};
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int
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check_retreat_and_do_shipdamage(struct shpstr *sp, int dam)
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{
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if (dam <= 0)
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return 0;
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shipdamage(sp, dam);
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if (sp->shp_rflags & RET_INJURED)
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retreat_ship(sp, 'i');
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return 1;
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}
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void
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retreat_ship(struct shpstr *sp, s_char code)
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{
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struct nstr_item ni;
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struct shpstr ship;
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s_char buf[2];
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if (sp->shp_rflags & RET_GROUP) {
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buf[0] = sp->shp_fleet;
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buf[1] = 0;
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snxtitem(&ni, EF_SHIP, buf);
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while (nxtitem(&ni, (s_char *)&ship))
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if ((ship.shp_fleet == buf[0]) &&
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(ship.shp_own == sp->shp_own)) {
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if (ship.shp_uid == sp->shp_uid) {
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retreat_ship1(sp, code, 1);
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if (sp->shp_rpath[0] == 0)
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sp->shp_rflags = 0;
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} else {
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retreat_ship1(&ship, code, 0);
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getship(ship.shp_uid, &ship);
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if (ship.shp_rpath[0] == 0) {
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ship.shp_rflags = 0;
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putship(ship.shp_uid, &ship);
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}
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}
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}
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} else {
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retreat_ship1(sp, code, 1);
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if (sp->shp_rpath[0] == 0)
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sp->shp_rflags = 0;
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}
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}
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static int
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retreat_ship1(struct shpstr *sp, s_char code, int orig)
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/* Is this the originally scared ship, or a follower */
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{
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struct sctstr sect;
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register int n;
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register int m;
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int max;
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int dir;
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coord newx;
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coord newy;
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coord dx;
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coord dy;
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int stopping;
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int mines;
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int shells;
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double mobcost;
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struct mchrstr *mcp;
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int vec[I_MAX + 1];
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int time_to_stop;
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sp->shp_mission = 0;
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if (sp->shp_own == 0)
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return 0;
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if (isupper(code))
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code = tolower(code);
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n = 0;
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if (sp->shp_effic < SHIP_MINEFF) {
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wu(0, sp->shp_own,
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"%s %s,\nbut it died in the attack, and so couldn't retreat!\n",
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prship(sp), conditions[findcondition(code)].desc[orig]);
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if (!orig)
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putship(sp->shp_uid, sp);
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return 0;
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}
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if (opt_SAIL) {
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/* can't retreat a ship that's sailin, bad things happend */
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if (*sp->shp_path) {
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wu(0, sp->shp_own,
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"%s %s,\nbut had sailing orders, and couldn't retreat!\n",
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prship(sp), conditions[findcondition(code)].desc[orig]);
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if (!orig)
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putship(sp->shp_uid, sp);
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return 0;
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}
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}
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/* check crew - uws don't count */
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getvec(VT_ITEM, vec, (s_char *)sp, EF_SHIP);
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if (vec[I_MILIT] == 0 && vec[I_CIVIL] == 0) {
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wu(0, sp->shp_own,
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"%s %s,\nbut had no crew, and couldn't retreat!\n", prship(sp),
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conditions[findcondition(code)].desc[orig]);
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if (!orig)
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putship(sp->shp_uid, sp);
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return 0;
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}
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getsect(sp->shp_x, sp->shp_y, §);
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switch (check_nav(§)) {
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case CN_CONSTRUCTION:
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wu(0, sp->shp_own,
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"%s %s,\nbut was caught in a construction zone, and couldn't retreat!\n",
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prship(sp), conditions[findcondition(code)].desc[orig]);
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if (!orig)
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putship(sp->shp_uid, sp);
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return 0;
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case CN_LANDLOCKED:
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wu(0, sp->shp_own,
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"%s %s,\nbut was landlocked, and couldn't retreat!\n",
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prship(sp), conditions[findcondition(code)].desc[orig]);
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if (!orig)
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putship(sp->shp_uid, sp);
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return 0;
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/*NOTREACHED*/
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case CN_NAVIGABLE:
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break;
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case CN_ERROR:
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default:
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wu(0, sp->shp_own,
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"%s %s,\nbut was subject to an empire error, and couldn't retreat!\n",
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prship(sp), conditions[findcondition(code)].desc[orig]);
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if (!orig)
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putship(sp->shp_uid, sp);
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return 0;
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/*NOTREACHED*/
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}
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if (sp->shp_mobil <= 0.0) {
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wu(0, sp->shp_own,
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"%s %s,\nbut had no mobility, and couldn't retreat!\n",
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prship(sp), conditions[findcondition(code)].desc[orig]);
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if (!orig)
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putship(sp->shp_uid, sp);
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return 0;
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}
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n = (-1 * MAX_RETREAT);
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stopping = 0;
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time_to_stop = 0;
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while ((!stopping) && n) {
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dx = dy = 0;
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if (sp->shp_rpath[0] == 0 || sp->shp_rpath[0] == 0) {
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stopping = 1;
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continue;
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}
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if (sp->shp_mobil <= 0.0) {
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wu(0, sp->shp_own,
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"%s %s,\nbut ran out of mobility, and couldn't retreat fully!\n",
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prship(sp), conditions[findcondition(code)].desc[orig]);
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if (!orig)
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putship(sp->shp_uid, sp);
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return 0;
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}
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dir = chkdir(sp->shp_rpath[0], DIR_STOP, DIR_VIEW);
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memmove(sp->shp_rpath, sp->shp_rpath+1, sizeof(sp->shp_rpath) - 1);
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if (dir == -1)
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continue;
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if (dir == DIR_STOP)
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stopping++;
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else {
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dx = diroff[dir][0];
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dy = diroff[dir][1];
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}
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n++;
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mcp = &mchr[(int)sp->shp_type];
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newx = xnorm(sp->shp_x + dx);
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newy = ynorm(sp->shp_y + dy);
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mobcost = sp->shp_effic * 0.01 * sp->shp_speed;
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mobcost = 480.0 / (mobcost + techfact(sp->shp_tech, mobcost));
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getsect(newx, newy, §);
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if (check_nav(§) != CN_NAVIGABLE ||
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(sect.sct_own && !player->owner &&
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getrel(getnatp(sect.sct_own), sp->shp_own) < FRIENDLY)) {
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wu(0, sp->shp_own, "%s %s,\nbut could not retreat to %s!\n",
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prship(sp), conditions[findcondition(code)].desc[orig],
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xyas(newx, newy, sp->shp_own));
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if (!orig)
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putship(sp->shp_uid, sp);
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return 0;
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}
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sp->shp_x = newx;
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sp->shp_y = newy;
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sp->shp_mobil -= mobcost;
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if (stopping)
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continue;
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mines = sect.sct_mines;
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if ((mcp->m_flags & M_SWEEP) && mines > 0 && !player->owner) {
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max = vl_find(V_SHELL, mcp->m_vtype,
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mcp->m_vamt, (int)mcp->m_nv);
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shells = sp->shp_item[I_SHELL];
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for (m = 0; mines > 0 && m < 5; m++) {
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if (chance(0.66)) {
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mines--;
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shells = min(max, shells + 1);
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}
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}
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sect.sct_mines = mines;
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sect.sct_item[I_SHELL] = shells;
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putsect(§);
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}
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if (mines > 0 && !player->owner && chance(DMINE_HITCHANCE(mines))) {
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wu(0, sp->shp_own,
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"%s %s,\nand hit a mine in %s while retreating!\n",
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prship(sp), conditions[findcondition(code)].desc[orig],
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xyas(newx, newy, sp->shp_own));
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nreport(sp->shp_own, N_HIT_MINE, 0, 1);
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m = MINE_DAMAGE();
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shipdamage(sp, m);
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mines--;
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sect.sct_mines = mines;
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putsect(§);
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if (sp->shp_effic < SHIP_MINEFF)
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time_to_stop = 1;
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if (!orig)
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putship(sp->shp_uid, sp);
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return 0;
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}
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if (time_to_stop)
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stopping = 1;
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}
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if (orig) {
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wu(0, sp->shp_own, "%s %s, and retreated to %s\n", prship(sp),
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conditions[findcondition(code)].desc[orig],
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xyas(sp->shp_x, sp->shp_y, sp->shp_own));
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} else {
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wu(0, sp->shp_own, "%s %s, and ended up at %s\n",
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prship(sp),
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conditions[findcondition(code)].desc[orig],
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xyas(sp->shp_x, sp->shp_y, sp->shp_own));
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}
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if (!orig)
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putship(sp->shp_uid, sp);
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return 1;
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}
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#if 0
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static int
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check_nav(sect)
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struct sctstr *sect;
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{
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switch (dchr[sect->sct_type].d_flg & 03) {
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case NAVOK:
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break;
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case NAV_02:
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if (sect->sct_effic < 2)
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return CN_CONSTRUCTION;
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break;
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case NAV_60:
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if (sect->sct_effic < 60)
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return CN_CONSTRUCTION;
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break;
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default:
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return CN_LANDLOCKED;
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}
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return CN_NAVIGABLE;
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}
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#endif
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static int
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findcondition(s_char code)
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{
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int x;
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x = 0;
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while (conditions[x].code) {
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if (conditions[x].code == code)
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return (x);
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x++;
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}
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return (x);
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}
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int
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check_retreat_and_do_landdamage(struct lndstr *lp, int dam)
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{
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if (dam <= 0)
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return 0;
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landdamage(lp, dam);
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if (lp->lnd_rflags & RET_INJURED)
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retreat_land(lp, 'i');
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return 1;
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}
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void
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retreat_land(struct lndstr *lp, s_char code)
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{
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struct nstr_item ni;
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struct lndstr land;
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s_char buf[2];
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if (lp->lnd_rflags & RET_GROUP) {
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buf[0] = lp->lnd_army;
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buf[1] = 0;
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snxtitem(&ni, EF_SHIP, buf);
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while (nxtitem(&ni, (s_char *)&land))
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if ((land.lnd_army == buf[0]) && (land.lnd_own == lp->lnd_own)) {
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if (land.lnd_uid == lp->lnd_uid) {
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retreat_land1(lp, code, 1);
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if (lp->lnd_rpath[0] == 0)
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lp->lnd_rflags = 0;
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} else {
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retreat_land1(&land, code, 0);
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getland(land.lnd_uid, &land);
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if (land.lnd_rpath[0] == 0) {
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land.lnd_rflags = 0;
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putland(land.lnd_uid, &land);
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}
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}
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}
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} else {
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retreat_land1(lp, code, 1);
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if (lp->lnd_rpath[0] == 0)
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lp->lnd_rflags = 0;
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}
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}
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static int
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retreat_land1(struct lndstr *lp, s_char code, int orig)
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/* Is this the originally scared unit, or a follower */
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{
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struct sctstr sect;
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register int n;
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register int m;
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int max;
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int dir;
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coord newx;
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coord newy;
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coord dx;
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coord dy;
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int stopping;
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int mines;
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int shells;
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double mobcost;
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struct lchrstr *lcp;
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int time_to_stop;
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lp->lnd_mission = 0;
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if (lp->lnd_own == 0)
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return 0;
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if (isupper(code))
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code = tolower(code);
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n = 0;
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if (lp->lnd_effic < LAND_MINEFF) {
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wu(0, lp->lnd_own,
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"%s %s,\nbut it died in the attack, and so couldn't retreat!\n",
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prland(lp), conditions[findcondition(code)].desc[orig]);
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if (!orig)
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putland(lp->lnd_uid, lp);
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return 0;
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}
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getsect(lp->lnd_x, lp->lnd_y, §);
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if (lp->lnd_mobil <= 0.0) {
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wu(0, lp->lnd_own,
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"%s %s,\nbut had no mobility, and couldn't retreat!\n",
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prland(lp), conditions[findcondition(code)].desc[orig]);
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if (!orig)
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putland(lp->lnd_uid, lp);
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return 0;
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}
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n = (-1 * MAX_RETREAT);
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stopping = 0;
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time_to_stop = 0;
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while ((!stopping) && n) {
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dx = dy = 0;
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if (lp->lnd_rpath[0] == 0 || lp->lnd_rpath[0] == 0) {
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stopping = 1;
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continue;
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}
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if (lp->lnd_mobil <= 0.0) {
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wu(0, lp->lnd_own,
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"%s %s,\nbut ran out of mobility, and couldn't retreat fully!\n",
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prland(lp), conditions[findcondition(code)].desc[orig]);
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if (!orig)
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putland(lp->lnd_uid, lp);
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return 0;
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}
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dir = chkdir(lp->lnd_rpath[0], DIR_STOP, DIR_VIEW);
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memmove(lp->lnd_rpath, lp->lnd_rpath+1, sizeof(lp->lnd_rpath) - 1);
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if (dir == -1)
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continue;
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if (dir == DIR_STOP)
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stopping++;
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else {
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dx = diroff[dir][0];
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dy = diroff[dir][1];
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}
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n++;
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lcp = &lchr[(int)lp->lnd_type];
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newx = xnorm(lp->lnd_x + dx);
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newy = ynorm(lp->lnd_y + dy);
|
|
|
|
getsect(newx, newy, §);
|
|
if ((sect.sct_type == SCT_WATER) ||
|
|
(sect.sct_type == SCT_MOUNT) ||
|
|
(sect.sct_type == SCT_SANCT) ||
|
|
(sect.sct_type == SCT_WASTE) ||
|
|
(sect.sct_own != lp->lnd_own)) {
|
|
wu(0, lp->lnd_own, "%s %s,\nbut could not retreat to %s!\n",
|
|
prland(lp),
|
|
conditions[findcondition(code)].desc[orig],
|
|
xyas(newx, newy, lp->lnd_own));
|
|
if (!orig)
|
|
putland(lp->lnd_uid, lp);
|
|
return 0;
|
|
}
|
|
mobcost = lnd_mobcost(lp, §, MOB_ROAD);
|
|
lp->lnd_x = newx;
|
|
lp->lnd_y = newy;
|
|
lp->lnd_mobil -= mobcost;
|
|
if (stopping)
|
|
continue;
|
|
|
|
mines = sect.sct_mines;
|
|
if ((lcp->l_flags & L_ENGINEER) && mines > 0 &&
|
|
(sect.sct_oldown != lp->lnd_own)) {
|
|
max = vl_find(V_SHELL, lcp->l_vtype,
|
|
lcp->l_vamt, (int)lcp->l_nv);
|
|
shells = lp->lnd_item[I_SHELL];
|
|
for (m = 0; mines > 0 && m < 5; m++) {
|
|
if (chance(0.66)) {
|
|
mines--;
|
|
shells = min(max, shells + 1);
|
|
}
|
|
}
|
|
sect.sct_mines = mines;
|
|
lp->lnd_item[I_SHELL] = shells;
|
|
putsect(§);
|
|
}
|
|
if (mines > 0 && (sect.sct_oldown != lp->lnd_own) &&
|
|
chance(DMINE_HITCHANCE(mines))) {
|
|
wu(0, lp->lnd_own,
|
|
"%s %s,\nand hit a mine while retreating!\n", prland(lp),
|
|
conditions[findcondition(code)].desc[orig], xyas(newx, newy,
|
|
lp->
|
|
lnd_own));
|
|
nreport(lp->lnd_own, N_LHIT_MINE, 0, 1);
|
|
m = MINE_LDAMAGE();
|
|
landdamage(lp, m);
|
|
mines--;
|
|
sect.sct_mines = mines;
|
|
putsect(§);
|
|
if (lp->lnd_effic < LAND_MINEFF)
|
|
time_to_stop = 1;
|
|
if (!orig)
|
|
putland(lp->lnd_uid, lp);
|
|
return 0;
|
|
}
|
|
if (time_to_stop)
|
|
stopping = 1;
|
|
}
|
|
|
|
if (orig) {
|
|
wu(0, lp->lnd_own, "%s %s, and retreated to %s\n",
|
|
prland(lp),
|
|
conditions[findcondition(code)].desc[orig],
|
|
xyas(lp->lnd_x, lp->lnd_y, lp->lnd_own));
|
|
} else {
|
|
wu(0, lp->lnd_own, "%s %s, and ended up at %s\n",
|
|
prland(lp),
|
|
conditions[findcondition(code)].desc[orig],
|
|
xyas(lp->lnd_x, lp->lnd_y, lp->lnd_own));
|
|
}
|
|
if (!orig)
|
|
putland(lp->lnd_uid, lp);
|
|
return 1;
|
|
}
|