OpenBSD-4.6/games/hack/hack.zap.c
/* $OpenBSD: hack.zap.c,v 1.9 2004/09/17 21:07:26 mickey Exp $ */
/*
* Copyright (c) 1985, Stichting Centrum voor Wiskunde en Informatica,
* Amsterdam
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* - Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* - Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* - Neither the name of the Stichting Centrum voor Wiskunde en
* Informatica, nor the names of its contributors may be used to endorse or
* promote products derived from this software without specific prior
* written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
* IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
* PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
* OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/*
* Copyright (c) 1982 Jay Fenlason <hack@gnu.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
* AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
* THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef lint
static const char rcsid[] = "$OpenBSD: hack.zap.c,v 1.9 2004/09/17 21:07:26 mickey Exp $";
#endif /* not lint */
#include <stdlib.h>
#include "hack.h"
extern struct monst youmonst;
char *fl[]= {
"magic missile",
"bolt of fire",
"sleep ray",
"bolt of cold",
"death ray"
};
static char dirlet(int, int);
static int zhit(struct monst *, int);
static boolean revive(struct obj *);
static void rloco(struct obj *);
static void burn_scrolls(void);
/* Routines for IMMEDIATE wands. */
/* bhitm: monster mtmp was hit by the effect of wand otmp */
void
bhitm(struct monst *mtmp, struct obj *otmp)
{
wakeup(mtmp);
switch(otmp->otyp) {
case WAN_STRIKING:
if(u.uswallow || rnd(20) < 10+mtmp->data->ac) {
int tmp = d(2,12);
hit("wand", mtmp, exclam(tmp));
mtmp->mhp -= tmp;
if(mtmp->mhp < 1) killed(mtmp);
} else miss("wand", mtmp);
break;
case WAN_SLOW_MONSTER:
mtmp->mspeed = MSLOW;
break;
case WAN_SPEED_MONSTER:
mtmp->mspeed = MFAST;
break;
case WAN_UNDEAD_TURNING:
if(strchr(UNDEAD,mtmp->data->mlet)) {
mtmp->mhp -= rnd(8);
if(mtmp->mhp < 1) killed(mtmp);
else mtmp->mflee = 1;
}
break;
case WAN_POLYMORPH:
if( newcham(mtmp,&mons[rn2(CMNUM)]) )
objects[otmp->otyp].oc_name_known = 1;
break;
case WAN_CANCELLATION:
mtmp->mcan = 1;
break;
case WAN_TELEPORTATION:
rloc(mtmp);
break;
case WAN_MAKE_INVISIBLE:
mtmp->minvis = 1;
break;
#ifdef WAN_PROBING
case WAN_PROBING:
mstatusline(mtmp);
break;
#endif /* WAN_PROBING */
default:
impossible("What an interesting wand (%u)", otmp->otyp);
}
}
/* returns TRUE if sth was done */
/* object obj was hit by the effect of wand otmp */
boolean
bhito(struct obj *obj, struct obj *otmp)
{
int res = TRUE;
if(obj == uball || obj == uchain)
res = FALSE;
else
switch(otmp->otyp) {
case WAN_POLYMORPH:
/* preserve symbol and quantity, but turn rocks into gems */
mkobj_at((obj->otyp == ROCK || obj->otyp == ENORMOUS_ROCK)
? GEM_SYM : obj->olet,
obj->ox, obj->oy) -> quan = obj->quan;
delobj(obj);
break;
case WAN_STRIKING:
if(obj->otyp == ENORMOUS_ROCK)
fracture_rock(obj);
else
res = FALSE;
break;
case WAN_CANCELLATION:
if(obj->spe && obj->olet != AMULET_SYM) {
obj->known = 0;
obj->spe = 0;
}
break;
case WAN_TELEPORTATION:
rloco(obj);
break;
case WAN_MAKE_INVISIBLE:
obj->oinvis = 1;
break;
case WAN_UNDEAD_TURNING:
res = revive(obj);
break;
case WAN_SLOW_MONSTER: /* no effect on objects */
case WAN_SPEED_MONSTER:
#ifdef WAN_PROBING
case WAN_PROBING:
#endif /* WAN_PROBING */
res = FALSE;
break;
default:
impossible("What an interesting wand (%u)", otmp->otyp);
}
return(res);
}
int
dozap()
{
struct obj *obj;
xchar zx,zy;
obj = getobj("/", "zap");
if(!obj) return(0);
if(obj->spe < 0 || (obj->spe == 0 && rn2(121))) {
pline("Nothing Happens.");
return(1);
}
if(obj->spe == 0)
pline("You wrest one more spell from the worn-out wand.");
if(!(objects[obj->otyp].bits & NODIR) && !getdir(1))
return(1); /* make him pay for knowing !NODIR */
obj->spe--;
if(objects[obj->otyp].bits & IMMEDIATE) {
if(u.uswallow)
bhitm(u.ustuck, obj);
else if(u.dz) {
if(u.dz > 0) {
struct obj *otmp = o_at(u.ux, u.uy);
if(otmp)
(void) bhito(otmp, obj);
}
} else
(void) bhit(u.dx,u.dy,rn1(8,6),0,bhitm,bhito,obj);
} else {
switch(obj->otyp){
case WAN_LIGHT:
litroom(TRUE);
break;
case WAN_SECRET_DOOR_DETECTION:
if(!findit()) return(1);
break;
case WAN_CREATE_MONSTER:
{ int cnt = 1;
if(!rn2(23)) cnt += rn2(7) + 1;
while(cnt--)
(void) makemon((struct permonst *) 0, u.ux, u.uy);
}
break;
case WAN_WISHING:
{ char buf[BUFSZ];
struct obj *otmp;
if(u.uluck + rn2(5) < 0) {
pline("Unfortunately, nothing happens.");
break;
}
pline("You may wish for an object. What do you want? ");
getlin(buf);
if(buf[0] == '\033') buf[0] = 0;
otmp = readobjnam(buf, sizeof buf);
otmp = addinv(otmp);
prinv(otmp);
break;
}
case WAN_DIGGING:
/* Original effect (approximately):
* from CORR: dig until we pierce a wall
* from ROOM: piece wall and dig until we reach
* an ACCESSIBLE place.
* Currently: dig for digdepth positions;
* also down on request of Lennart Augustsson.
*/
{ struct rm *room;
int digdepth;
if(u.uswallow) {
struct monst *mtmp = u.ustuck;
pline("You pierce %s's stomach wall!",
monnam(mtmp));
mtmp->mhp = 1; /* almost dead */
unstuck(mtmp);
mnexto(mtmp);
break;
}
if(u.dz) {
if(u.dz < 0) {
pline("You loosen a rock from the ceiling.");
pline("It falls on your head!");
losehp(1, "falling rock");
mksobj_at(ROCK, u.ux, u.uy);
fobj->quan = 1;
stackobj(fobj);
if(Invisible) newsym(u.ux, u.uy);
} else {
dighole();
}
break;
}
zx = u.ux+u.dx;
zy = u.uy+u.dy;
digdepth = 8 + rn2(18);
Tmp_at(-1, '*'); /* open call */
while(--digdepth >= 0) {
if(!isok(zx,zy)) break;
room = &levl[(int)zx][(int)zy];
Tmp_at(zx,zy);
if(!xdnstair){
if(zx < 3 || zx > COLNO-3 ||
zy < 3 || zy > ROWNO-3)
break;
if(room->typ == HWALL ||
room->typ == VWALL){
room->typ = ROOM;
break;
}
} else
if(room->typ == HWALL || room->typ == VWALL ||
room->typ == SDOOR || room->typ == LDOOR){
room->typ = DOOR;
digdepth -= 2;
} else
if(room->typ == SCORR || !room->typ) {
room->typ = CORR;
digdepth--;
}
mnewsym(zx,zy);
zx += u.dx;
zy += u.dy;
}
mnewsym(zx,zy); /* not always necessary */
Tmp_at(-1,-1); /* closing call */
break;
}
default:
buzz((int) obj->otyp - WAN_MAGIC_MISSILE,
u.ux, u.uy, u.dx, u.dy);
break;
}
if(!objects[obj->otyp].oc_name_known) {
objects[obj->otyp].oc_name_known = 1;
more_experienced(0,10);
}
}
return(1);
}
char *
exclam(int force)
{
/* force == 0 occurs e.g. with sleep ray */
/* note that large force is usual with wands so that !! would
* require information about hand/weapon/wand
*/
return( (force < 0) ? "?" : (force <= 4) ? "." : "!" );
}
/* force is usually either "." or "!" */
void
hit(char *str, struct monst *mtmp, char *force)
{
if(!cansee(mtmp->mx,mtmp->my)) pline("The %s hits it.", str);
else pline("The %s hits %s%s", str, monnam(mtmp), force);
}
void
miss(char *str, struct monst *mtmp)
{
if(!cansee(mtmp->mx,mtmp->my)) pline("The %s misses it.",str);
else pline("The %s misses %s.",str,monnam(mtmp));
}
/* bhit: called when a weapon is thrown (sym = obj->olet) or when an
* IMMEDIATE wand is zapped (sym = 0); the weapon falls down at end of
* range or when a monster is hit; the monster is returned, and bhitpos
* is set to the final position of the weapon thrown; the ray of a wand
* may affect several objects and monsters on its path - for each of
* these an argument function is called. */
/* check !u.uswallow before calling bhit() */
/*
* int ddx,ddy,range; direction and range
* char sym; symbol displayed on path
* int (*fhitm)(), (*fhito)(); fns called when mon/obj hit
* struct obj *obj; 2nd arg to fhitm/fhito
* struct monst *
*/
struct monst *
bhit(int ddx, int ddy, int range, char sym,
void (*fhitm)(struct monst *, struct obj *),
boolean (*fhito)(struct obj *, struct obj *),
struct obj *obj)
{
struct monst *mtmp;
struct obj *otmp;
int typ;
bhitpos.x = u.ux;
bhitpos.y = u.uy;
if(sym) tmp_at(-1, sym); /* open call */
while(range-- > 0) {
bhitpos.x += ddx;
bhitpos.y += ddy;
typ = levl[(int)bhitpos.x][(int)bhitpos.y].typ;
if ((mtmp = m_at(bhitpos.x,bhitpos.y))) {
if(sym) {
tmp_at(-1, -1); /* close call */
return(mtmp);
}
if (fhitm)
(*fhitm)(mtmp, obj);
range -= 3;
}
if ((otmp = o_at(bhitpos.x,bhitpos.y))){
if(fhito && (*fhito)(otmp, obj))
range--;
}
if (!ZAP_POS(typ)) {
bhitpos.x -= ddx;
bhitpos.y -= ddy;
break;
}
if(sym) tmp_at(bhitpos.x, bhitpos.y);
}
/* leave last symbol unless in a pool */
if(sym)
tmp_at(-1, (levl[(int)bhitpos.x][(int)bhitpos.y].typ == POOL) ? -1 : 0);
return(NULL);
}
struct monst *
boomhit(int dx, int dy)
{
int i, ct;
struct monst *mtmp;
char sym = ')';
extern schar xdir[], ydir[];
bhitpos.x = u.ux;
bhitpos.y = u.uy;
for(i=0; i<8; i++) if(xdir[i] == dx && ydir[i] == dy) break;
tmp_at(-1, sym); /* open call */
for(ct=0; ct<10; ct++) {
if(i == 8) i = 0;
sym = ')' + '(' - sym;
tmp_at(-2, sym); /* change let call */
dx = xdir[i];
dy = ydir[i];
bhitpos.x += dx;
bhitpos.y += dy;
if ((mtmp = m_at(bhitpos.x, bhitpos.y))) {
tmp_at(-1,-1);
return(mtmp);
}
if (!ZAP_POS(levl[(int)bhitpos.x][(int)bhitpos.y].typ)) {
bhitpos.x -= dx;
bhitpos.y -= dy;
break;
}
if (bhitpos.x == u.ux && bhitpos.y == u.uy) { /* ct == 9 */
if(rn2(20) >= 10+u.ulevel){ /* we hit ourselves */
(void) thitu(10, rnd(10), "boomerang");
break;
} else { /* we catch it */
tmp_at(-1,-1);
pline("Skillfully, you catch the boomerang.");
return(&youmonst);
}
}
tmp_at(bhitpos.x, bhitpos.y);
if(ct % 5 != 0) i++;
}
tmp_at(-1, -1); /* do not leave last symbol */
return(0);
}
static char
dirlet(int dx, int dy)
{
return (dx == dy) ? '\\' : (dx && dy) ? '/' : dx ? '-' : '|';
}
/* type == -1: monster spitting fire at you */
/* type == -1,-2,-3: bolts sent out by wizard */
/* called with dx = dy = 0 with vertical bolts */
void
buzz(int type, xchar sx, xchar sy, int dx, int dy)
{
int abstype = abs(type);
char *fltxt = (type == -1) ? "blaze of fire" : fl[abstype];
struct rm *lev;
xchar range;
struct monst *mon;
if(u.uswallow) {
int tmp;
if(type < 0) return;
tmp = zhit(u.ustuck, type);
pline("The %s rips into %s%s",
fltxt, monnam(u.ustuck), exclam(tmp));
return;
}
if(type < 0) pru();
range = rn1(7,7);
Tmp_at(-1, dirlet(dx,dy)); /* open call */
while(range-- > 0) {
sx += dx;
sy += dy;
if ((lev = &levl[(int)sx][(int)sy])->typ)
Tmp_at(sx,sy);
else {
int bounce = 0;
if (cansee(sx-dx,sy-dy))
pline("The %s bounces!", fltxt);
if (ZAP_POS(levl[(int)sx][sy-dy].typ))
bounce = 1;
if (ZAP_POS(levl[sx-dx][(int)sy].typ)) {
if(!bounce || rn2(2))
bounce = 2;
}
switch(bounce){
case 0:
dx = -dx;
dy = -dy;
continue;
case 1:
dy = -dy;
sx -= dx;
break;
case 2:
dx = -dx;
sy -= dy;
break;
}
Tmp_at(-2,dirlet(dx,dy));
continue;
}
if(lev->typ == POOL && abstype == 1 /* fire */) {
range -= 3;
lev->typ = ROOM;
if(cansee(sx,sy)) {
mnewsym(sx,sy);
pline("The water evaporates.");
} else
pline("You hear a hissing sound.");
}
if((mon = m_at(sx,sy)) &&
(type != -1 || mon->data->mlet != 'D')) {
wakeup(mon);
if(rnd(20) < 18 + mon->data->ac) {
int tmp = zhit(mon,abstype);
if(mon->mhp < 1) {
if(type < 0) {
if(cansee(mon->mx,mon->my))
pline("%s is killed by the %s!",
Monnam(mon), fltxt);
mondied(mon);
} else
killed(mon);
} else
hit(fltxt, mon, exclam(tmp));
range -= 2;
} else
miss(fltxt,mon);
} else if(sx == u.ux && sy == u.uy) {
nomul(0);
if(rnd(20) < 18+u.uac) {
int dam = 0;
range -= 2;
pline("The %s hits you!",fltxt);
switch(abstype) {
case 0:
dam = d(2,6);
break;
case 1:
if(Fire_resistance)
pline("You don't feel hot!");
else dam = d(6,6);
if(!rn2(3))
burn_scrolls();
break;
case 2:
nomul(-rnd(25)); /* sleep ray */
break;
case 3:
if(Cold_resistance)
pline("You don't feel cold!");
else dam = d(6,6);
break;
case 4:
u.uhp = -1;
}
losehp(dam,fltxt);
} else pline("The %s whizzes by you!",fltxt);
stop_occupation();
}
if(!ZAP_POS(lev->typ)) {
int bounce = 0, rmn;
if(cansee(sx,sy)) pline("The %s bounces!",fltxt);
range--;
if(!dx || !dy || !rn2(20)){
dx = -dx;
dy = -dy;
} else {
if(ZAP_POS(rmn = levl[(int)sx][sy-dy].typ) &&
(IS_ROOM(rmn) || ZAP_POS(levl[sx+dx][sy-dy].typ)))
bounce = 1;
if(ZAP_POS(rmn = levl[sx-dx][(int)sy].typ) &&
(IS_ROOM(rmn) || ZAP_POS(levl[sx-dx][sy+dy].typ)))
if(!bounce || rn2(2))
bounce = 2;
switch(bounce){
case 0:
dy = -dy;
dx = -dx;
break;
case 1:
dy = -dy;
break;
case 2:
dx = -dx;
break;
}
Tmp_at(-2, dirlet(dx,dy));
}
}
}
Tmp_at(-1,-1);
}
/* returns damage to mon */
static int
zhit(struct monst *mon, int type)
{
int tmp = 0;
switch(type) {
case 0: /* magic missile */
tmp = d(2,6);
break;
case -1: /* Dragon blazing fire */
case 1: /* fire */
if(strchr("Dg", mon->data->mlet)) break;
tmp = d(6,6);
if(strchr("YF", mon->data->mlet)) tmp += 7;
break;
case 2: /* sleep*/
mon->mfroz = 1;
break;
case 3: /* cold */
if(strchr("YFgf", mon->data->mlet)) break;
tmp = d(6,6);
if(mon->data->mlet == 'D') tmp += 7;
break;
case 4: /* death*/
if(strchr(UNDEAD, mon->data->mlet)) break;
tmp = mon->mhp+1;
break;
}
mon->mhp -= tmp;
return(tmp);
}
#define CORPSE_I_TO_C(otyp) (char) ((otyp >= DEAD_ACID_BLOB)\
? 'a' + (otyp - DEAD_ACID_BLOB)\
: '@' + (otyp - DEAD_HUMAN))
static boolean
revive(struct obj *obj)
{
struct monst *mtmp;
if(obj->olet == FOOD_SYM && obj->otyp > CORPSE) {
/* do not (yet) revive shopkeepers */
/* Note: this might conceivably produce two monsters
at the same position - strange, but harmless */
mtmp = mkmon_at(CORPSE_I_TO_C(obj->otyp),obj->ox,obj->oy);
delobj(obj);
}
return(!!mtmp); /* TRUE if some monster created */
}
static void
rloco(struct obj *obj)
{
int tx,ty,otx,oty;
otx = obj->ox;
oty = obj->oy;
do {
tx = rn1(COLNO-3,2);
ty = rn2(ROWNO);
} while(!goodpos(tx,ty));
obj->ox = tx;
obj->oy = ty;
if(cansee(otx,oty))
newsym(otx,oty);
}
/* fractured by pick-axe or wand of striking */
void
fracture_rock(struct obj *obj)
{
/* unpobj(obj); */
obj->otyp = ROCK;
obj->quan = 7 + rn2(60);
obj->owt = weight(obj);
obj->olet = WEAPON_SYM;
if(cansee(obj->ox,obj->oy))
prl(obj->ox,obj->oy);
}
static void
burn_scrolls()
{
struct obj *obj, *obj2;
int cnt = 0;
for(obj = invent; obj; obj = obj2) {
obj2 = obj->nobj;
if(obj->olet == SCROLL_SYM) {
cnt++;
useup(obj);
}
}
if(cnt > 1) {
pline("Your scrolls catch fire!");
losehp(cnt, "burning scrolls");
} else if(cnt) {
pline("Your scroll catches fire!");
losehp(1, "burning scroll");
}
}