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/*
* Copyright (c) Stichting Mathematisch Centrum, Amsterdam, 1985.
*/
#ifndef lint
static char rcsid[] = "$NetBSD: hack.trap.c,v 1.3 1995/03/23 08:31:44 cgd Exp $";
#endif /* not lint */
#include "hack.h"
extern struct monst *makemon();
char vowels[] = "aeiou";
char *traps[] = {
" bear trap",
"n arrow trap",
" dart trap",
" trapdoor",
" teleportation trap",
" pit",
" sleeping gas trap",
" piercer",
" mimic"
};
struct trap *
maketrap(x,y,typ)
register x,y,typ;
{
register struct trap *ttmp;
ttmp = newtrap();
ttmp->ttyp = typ;
ttmp->tseen = 0;
ttmp->once = 0;
ttmp->tx = x;
ttmp->ty = y;
ttmp->ntrap = ftrap;
ftrap = ttmp;
return(ttmp);
}
dotrap(trap) register struct trap *trap; {
register int ttype = trap->ttyp;
nomul(0);
if(trap->tseen && !rn2(5) && ttype != PIT)
pline("You escape a%s.", traps[ttype]);
else {
trap->tseen = 1;
switch(ttype) {
case SLP_GAS_TRAP:
pline("A cloud of gas puts you to sleep!");
nomul(-rnd(25));
break;
case BEAR_TRAP:
if(Levitation) {
pline("You float over a bear trap.");
break;
}
u.utrap = 4 + rn2(4);
u.utraptype = TT_BEARTRAP;
pline("A bear trap closes on your foot!");
break;
case PIERC:
deltrap(trap);
if(makemon(PM_PIERCER,u.ux,u.uy)) {
pline("A piercer suddenly drops from the ceiling!");
if(uarmh)
pline("Its blow glances off your helmet.");
else
(void) thitu(3,d(4,6),"falling piercer");
}
break;
case ARROW_TRAP:
pline("An arrow shoots out at you!");
if(!thitu(8,rnd(6),"arrow")){
mksobj_at(ARROW, u.ux, u.uy);
fobj->quan = 1;
}
break;
case TRAPDOOR:
if(!xdnstair) {
pline("A trap door in the ceiling opens and a rock falls on your head!");
if(uarmh) pline("Fortunately, you are wearing a helmet!");
losehp(uarmh ? 2 : d(2,10),"falling rock");
mksobj_at(ROCK, u.ux, u.uy);
fobj->quan = 1;
stackobj(fobj);
if(Invisible) newsym(u.ux, u.uy);
} else {
register int newlevel = dlevel + 1;
while(!rn2(4) && newlevel < 29)
newlevel++;
pline("A trap door opens up under you!");
if(Levitation || u.ustuck) {
pline("For some reason you don't fall in.");
break;
}
goto_level(newlevel, FALSE);
}
break;
case DART_TRAP:
pline("A little dart shoots out at you!");
if(thitu(7,rnd(3),"little dart")) {
if(!rn2(6))
poisoned("dart","poison dart");
} else {
mksobj_at(DART, u.ux, u.uy);
fobj->quan = 1;
}
break;
case TELEP_TRAP:
if(trap->once) {
deltrap(trap);
newsym(u.ux,u.uy);
vtele();
} else {
newsym(u.ux,u.uy);
tele();
}
break;
case PIT:
if(Levitation) {
pline("A pit opens up under you!");
pline("You don't fall in!");
break;
}
pline("You fall into a pit!");
u.utrap = rn1(6,2);
u.utraptype = TT_PIT;
losehp(rnd(6),"fall into a pit");
selftouch("Falling, you");
break;
default:
impossible("You hit a trap of type %u", trap->ttyp);
}
}
}
mintrap(mtmp) register struct monst *mtmp; {
register struct trap *trap = t_at(mtmp->mx, mtmp->my);
register int wasintrap = mtmp->mtrapped;
if(!trap) {
mtmp->mtrapped = 0; /* perhaps teleported? */
} else if(wasintrap) {
if(!rn2(40)) mtmp->mtrapped = 0;
} else {
register int tt = trap->ttyp;
int in_sight = cansee(mtmp->mx,mtmp->my);
extern char mlarge[];
if(mtmp->mtrapseen & (1 << tt)) {
/* he has been in such a trap - perhaps he escapes */
if(rn2(4)) return(0);
}
mtmp->mtrapseen |= (1 << tt);
switch (tt) {
case BEAR_TRAP:
if(strchr(mlarge, mtmp->data->mlet)) {
if(in_sight)
pline("%s is caught in a bear trap!",
Monnam(mtmp));
else
if(mtmp->data->mlet == 'o')
pline("You hear the roaring of an angry bear!");
mtmp->mtrapped = 1;
}
break;
case PIT:
/* there should be a mtmp/data -> floating */
if(!strchr("EywBfk'& ", mtmp->data->mlet)) { /* ab */
mtmp->mtrapped = 1;
if(in_sight)
pline("%s falls in a pit!", Monnam(mtmp));
}
break;
case SLP_GAS_TRAP:
if(!mtmp->msleep && !mtmp->mfroz) {
mtmp->msleep = 1;
if(in_sight)
pline("%s suddenly falls asleep!",
Monnam(mtmp));
}
break;
case TELEP_TRAP:
rloc(mtmp);
if(in_sight && !cansee(mtmp->mx,mtmp->my))
pline("%s suddenly disappears!",
Monnam(mtmp));
break;
case ARROW_TRAP:
if(in_sight) {
pline("%s is hit by an arrow!",
Monnam(mtmp));
}
mtmp->mhp -= 3;
break;
case DART_TRAP:
if(in_sight) {
pline("%s is hit by a dart!",
Monnam(mtmp));
}
mtmp->mhp -= 2;
/* not mondied here !! */
break;
case TRAPDOOR:
if(!xdnstair) {
mtmp->mhp -= 10;
if(in_sight)
pline("A trap door in the ceiling opens and a rock hits %s!", monnam(mtmp));
break;
}
if(mtmp->data->mlet != 'w'){
fall_down(mtmp);
if(in_sight)
pline("Suddenly, %s disappears out of sight.", monnam(mtmp));
return(2); /* no longer on this level */
}
break;
case PIERC:
break;
default:
impossible("Some monster encountered a strange trap.");
}
}
return(mtmp->mtrapped);
}
selftouch(arg) char *arg; {
if(uwep && uwep->otyp == DEAD_COCKATRICE){
pline("%s touch the dead cockatrice.", arg);
pline("You turn to stone.");
killer = objects[uwep->otyp].oc_name;
done("died");
}
}
float_up(){
if(u.utrap) {
if(u.utraptype == TT_PIT) {
u.utrap = 0;
pline("You float up, out of the pit!");
} else {
pline("You float up, only your leg is still stuck.");
}
} else
pline("You start to float in the air!");
}
float_down(){
register struct trap *trap;
pline("You float gently to the ground.");
if(trap = t_at(u.ux,u.uy))
switch(trap->ttyp) {
case PIERC:
break;
case TRAPDOOR:
if(!xdnstair || u.ustuck) break;
/* fall into next case */
default:
dotrap(trap);
}
pickup(1);
}
vtele() {
#include "def.mkroom.h"
register struct mkroom *croom;
for(croom = &rooms[0]; croom->hx >= 0; croom++)
if(croom->rtype == VAULT) {
register x,y;
x = rn2(2) ? croom->lx : croom->hx;
y = rn2(2) ? croom->ly : croom->hy;
if(teleok(x,y)) {
teleds(x,y);
return;
}
}
tele();
}
tele() {
extern coord getpos();
coord cc;
register int nux,nuy;
if(Teleport_control) {
pline("To what position do you want to be teleported?");
cc = getpos(1, "the desired position"); /* 1: force valid */
/* possible extensions: introduce a small error if
magic power is low; allow transfer to solid rock */
if(teleok(cc.x, cc.y)){
teleds(cc.x, cc.y);
return;
}
pline("Sorry ...");
}
do {
nux = rnd(COLNO-1);
nuy = rn2(ROWNO);
} while(!teleok(nux, nuy));
teleds(nux, nuy);
}
teleds(nux, nuy)
register int nux,nuy;
{
if(Punished) unplacebc();
unsee();
u.utrap = 0;
u.ustuck = 0;
u.ux = nux;
u.uy = nuy;
setsee();
if(Punished) placebc(1);
if(u.uswallow){
u.uswldtim = u.uswallow = 0;
docrt();
}
nomul(0);
if(levl[nux][nuy].typ == POOL && !Levitation)
drown();
(void) inshop();
pickup(1);
if(!Blind) read_engr_at(u.ux,u.uy);
}
teleok(x,y) register int x,y; { /* might throw him into a POOL */
return( isok(x,y) && !IS_ROCK(levl[x][y].typ) && !m_at(x,y) &&
!sobj_at(ENORMOUS_ROCK,x,y) && !t_at(x,y)
);
/* Note: gold is permitted (because of vaults) */
}
dotele() {
extern char pl_character[];
if(
#ifdef WIZARD
!wizard &&
#endif WIZARD
(!Teleportation || u.ulevel < 6 ||
(pl_character[0] != 'W' && u.ulevel < 10))) {
pline("You are not able to teleport at will.");
return(0);
}
if(u.uhunger <= 100 || u.ustr < 6) {
pline("You miss the strength for a teleport spell.");
return(1);
}
tele();
morehungry(100);
return(1);
}
placebc(attach) int attach; {
if(!uchain || !uball){
impossible("Where are your chain and ball??");
return;
}
uball->ox = uchain->ox = u.ux;
uball->oy = uchain->oy = u.uy;
if(attach){
uchain->nobj = fobj;
fobj = uchain;
if(!carried(uball)){
uball->nobj = fobj;
fobj = uball;
}
}
}
unplacebc(){
if(!carried(uball)){
freeobj(uball);
unpobj(uball);
}
freeobj(uchain);
unpobj(uchain);
}
level_tele() {
register int newlevel;
if(Teleport_control) {
char buf[BUFSZ];
do {
pline("To what level do you want to teleport? [type a number] ");
getlin(buf);
} while(!digit(buf[0]) && (buf[0] != '-' || !digit(buf[1])));
newlevel = atoi(buf);
} else {
newlevel = 5 + rn2(20); /* 5 - 24 */
if(dlevel == newlevel)
if(!xdnstair) newlevel--; else newlevel++;
}
if(newlevel >= 30) {
if(newlevel > MAXLEVEL) newlevel = MAXLEVEL;
pline("You arrive at the center of the earth ...");
pline("Unfortunately it is here that hell is located.");
if(Fire_resistance) {
pline("But the fire doesn't seem to harm you.");
} else {
pline("You burn to a crisp.");
dlevel = maxdlevel = newlevel;
killer = "visit to the hell";
done("burned");
}
}
if(newlevel < 0) {
newlevel = 0;
pline("You are now high above the clouds ...");
if(Levitation) {
pline("You float gently down to earth.");
done("escaped");
}
pline("Unfortunately, you don't know how to fly.");
pline("You fall down a few thousand feet and break your neck.");
dlevel = 0;
killer = "fall";
done("died");
}
goto_level(newlevel, FALSE); /* calls done("escaped") if newlevel==0 */
}
drown()
{
pline("You fall into a pool!");
pline("You can't swim!");
if(rn2(3) < u.uluck+2) {
/* most scrolls become unreadable */
register struct obj *obj;
for(obj = invent; obj; obj = obj->nobj)
if(obj->olet == SCROLL_SYM && rn2(12) > u.uluck)
obj->otyp = SCR_BLANK_PAPER;
/* we should perhaps merge these scrolls ? */
pline("You attempt a teleport spell."); /* utcsri!carroll */
(void) dotele();
if(levl[u.ux][u.uy].typ != POOL) return;
}
pline("You drown ...");
killer = "pool of water";
done("drowned");
}
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