554 lines
13 KiB
C
554 lines
13 KiB
C
/* $NetBSD: hack.trap.c,v 1.7 2003/04/02 18:36:41 jsm Exp $ */
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/*
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* Copyright (c) 1985, Stichting Centrum voor Wiskunde en Informatica,
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* Amsterdam
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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*
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* - Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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*
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* - Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* - Neither the name of the Stichting Centrum voor Wiskunde en
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* Informatica, nor the names of its contributors may be used to endorse or
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* promote products derived from this software without specific prior
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* written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
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* IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
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* PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
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* OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/*
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* Copyright (c) 1982 Jay Fenlason <hack@gnu.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
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* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
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* AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
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* THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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#ifndef lint
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__RCSID("$NetBSD: hack.trap.c,v 1.7 2003/04/02 18:36:41 jsm Exp $");
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#endif /* not lint */
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#include <stdlib.h>
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#include "hack.h"
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#include "extern.h"
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#include "def.mkroom.h"
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const char vowels[] = "aeiou";
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const char *const traps[] = {
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" bear trap",
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"n arrow trap",
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" dart trap",
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" trapdoor",
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" teleportation trap",
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" pit",
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" sleeping gas trap",
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" piercer",
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" mimic"
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};
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struct trap *
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maketrap(x, y, typ)
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int x, y, typ;
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{
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struct trap *ttmp;
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ttmp = newtrap();
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ttmp->ttyp = typ;
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ttmp->tseen = 0;
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ttmp->once = 0;
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ttmp->tx = x;
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ttmp->ty = y;
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ttmp->ntrap = ftrap;
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ftrap = ttmp;
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return (ttmp);
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}
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void
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dotrap(trap)
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struct trap *trap;
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{
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int ttype = trap->ttyp;
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nomul(0);
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if (trap->tseen && !rn2(5) && ttype != PIT)
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pline("You escape a%s.", traps[ttype]);
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else {
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trap->tseen = 1;
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switch (ttype) {
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case SLP_GAS_TRAP:
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pline("A cloud of gas puts you to sleep!");
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nomul(-rnd(25));
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break;
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case BEAR_TRAP:
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if (Levitation) {
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pline("You float over a bear trap.");
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break;
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}
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u.utrap = 4 + rn2(4);
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u.utraptype = TT_BEARTRAP;
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pline("A bear trap closes on your foot!");
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break;
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case PIERC:
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deltrap(trap);
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if (makemon(PM_PIERCER, u.ux, u.uy)) {
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pline("A piercer suddenly drops from the ceiling!");
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if (uarmh)
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pline("Its blow glances off your helmet.");
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else
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(void) thitu(3, d(4, 6), "falling piercer");
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}
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break;
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case ARROW_TRAP:
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pline("An arrow shoots out at you!");
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if (!thitu(8, rnd(6), "arrow")) {
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mksobj_at(ARROW, u.ux, u.uy);
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fobj->quan = 1;
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}
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break;
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case TRAPDOOR:
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if (!xdnstair) {
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pline("A trap door in the ceiling opens and a rock falls on your head!");
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if (uarmh)
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pline("Fortunately, you are wearing a helmet!");
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losehp(uarmh ? 2 : d(2, 10), "falling rock");
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mksobj_at(ROCK, u.ux, u.uy);
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fobj->quan = 1;
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stackobj(fobj);
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if (Invisible)
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newsym(u.ux, u.uy);
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} else {
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int newlevel = dlevel + 1;
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while (!rn2(4) && newlevel < 29)
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newlevel++;
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pline("A trap door opens up under you!");
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if (Levitation || u.ustuck) {
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pline("For some reason you don't fall in.");
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break;
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}
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goto_level(newlevel, FALSE);
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}
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break;
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case DART_TRAP:
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pline("A little dart shoots out at you!");
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if (thitu(7, rnd(3), "little dart")) {
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if (!rn2(6))
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poisoned("dart", "poison dart");
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} else {
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mksobj_at(DART, u.ux, u.uy);
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fobj->quan = 1;
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}
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break;
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case TELEP_TRAP:
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if (trap->once) {
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deltrap(trap);
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newsym(u.ux, u.uy);
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vtele();
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} else {
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newsym(u.ux, u.uy);
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tele();
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}
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break;
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case PIT:
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if (Levitation) {
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pline("A pit opens up under you!");
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pline("You don't fall in!");
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break;
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}
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pline("You fall into a pit!");
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u.utrap = rn1(6, 2);
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u.utraptype = TT_PIT;
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losehp(rnd(6), "fall into a pit");
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selftouch("Falling, you");
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break;
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default:
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impossible("You hit a trap of type %u", trap->ttyp);
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}
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}
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}
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int
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mintrap(mtmp)
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struct monst *mtmp;
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{
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struct trap *trap = t_at(mtmp->mx, mtmp->my);
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int wasintrap = mtmp->mtrapped;
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if (!trap) {
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mtmp->mtrapped = 0; /* perhaps teleported? */
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} else if (wasintrap) {
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if (!rn2(40))
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mtmp->mtrapped = 0;
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} else {
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int tt = trap->ttyp;
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int in_sight = cansee(mtmp->mx, mtmp->my);
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if (mtmp->mtrapseen & (1 << tt)) {
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/* he has been in such a trap - perhaps he escapes */
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if (rn2(4))
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return (0);
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}
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mtmp->mtrapseen |= (1 << tt);
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switch (tt) {
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case BEAR_TRAP:
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if (strchr(mlarge, mtmp->data->mlet)) {
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if (in_sight)
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pline("%s is caught in a bear trap!",
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Monnam(mtmp));
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else if (mtmp->data->mlet == 'o')
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pline("You hear the roaring of an angry bear!");
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mtmp->mtrapped = 1;
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}
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break;
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case PIT:
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/* there should be a mtmp/data -> floating */
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if (!strchr("EywBfk'& ", mtmp->data->mlet)) { /* ab */
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mtmp->mtrapped = 1;
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if (in_sight)
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pline("%s falls in a pit!", Monnam(mtmp));
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}
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break;
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case SLP_GAS_TRAP:
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if (!mtmp->msleep && !mtmp->mfroz) {
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mtmp->msleep = 1;
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if (in_sight)
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pline("%s suddenly falls asleep!",
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Monnam(mtmp));
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}
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break;
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case TELEP_TRAP:
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rloc(mtmp);
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if (in_sight && !cansee(mtmp->mx, mtmp->my))
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pline("%s suddenly disappears!",
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Monnam(mtmp));
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break;
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case ARROW_TRAP:
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if (in_sight) {
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pline("%s is hit by an arrow!",
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Monnam(mtmp));
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}
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mtmp->mhp -= 3;
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break;
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case DART_TRAP:
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if (in_sight) {
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pline("%s is hit by a dart!",
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Monnam(mtmp));
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}
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mtmp->mhp -= 2;
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/* not mondied here !! */
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break;
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case TRAPDOOR:
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if (!xdnstair) {
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mtmp->mhp -= 10;
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if (in_sight)
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pline("A trap door in the ceiling opens and a rock hits %s!", monnam(mtmp));
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break;
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}
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if (mtmp->data->mlet != 'w') {
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fall_down(mtmp);
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if (in_sight)
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pline("Suddenly, %s disappears out of sight.", monnam(mtmp));
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return (2); /* no longer on this level */
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}
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break;
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case PIERC:
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break;
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default:
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impossible("Some monster encountered a strange trap.");
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}
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}
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return (mtmp->mtrapped);
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}
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void
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selftouch(arg)
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const char *arg;
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{
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if (uwep && uwep->otyp == DEAD_COCKATRICE) {
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pline("%s touch the dead cockatrice.", arg);
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pline("You turn to stone.");
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killer = objects[uwep->otyp].oc_name;
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done("died");
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}
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}
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void
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float_up()
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{
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if (u.utrap) {
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if (u.utraptype == TT_PIT) {
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u.utrap = 0;
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pline("You float up, out of the pit!");
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} else {
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pline("You float up, only your leg is still stuck.");
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}
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} else
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pline("You start to float in the air!");
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}
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void
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float_down()
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{
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struct trap *trap;
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pline("You float gently to the ground.");
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if ((trap = t_at(u.ux, u.uy)) != NULL)
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switch (trap->ttyp) {
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case PIERC:
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break;
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case TRAPDOOR:
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if (!xdnstair || u.ustuck)
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break;
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/* fall into next case */
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default:
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dotrap(trap);
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}
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pickup(1);
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}
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void
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vtele()
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{
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struct mkroom *croom;
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for (croom = &rooms[0]; croom->hx >= 0; croom++)
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if (croom->rtype == VAULT) {
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int x, y;
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x = rn2(2) ? croom->lx : croom->hx;
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y = rn2(2) ? croom->ly : croom->hy;
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if (teleok(x, y)) {
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teleds(x, y);
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return;
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}
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}
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tele();
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}
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void
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tele()
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{
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coord cc;
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int nux, nuy;
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if (Teleport_control) {
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pline("To what position do you want to be teleported?");
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cc = getpos(1, "the desired position"); /* 1: force valid */
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/*
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* possible extensions: introduce a small error if magic
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* power is low; allow transfer to solid rock
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*/
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if (teleok(cc.x, cc.y)) {
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teleds(cc.x, cc.y);
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return;
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}
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pline("Sorry ...");
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}
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do {
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nux = rnd(COLNO - 1);
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nuy = rn2(ROWNO);
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} while (!teleok(nux, nuy));
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teleds(nux, nuy);
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}
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void
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teleds(nux, nuy)
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int nux, nuy;
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{
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if (Punished)
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unplacebc();
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unsee();
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u.utrap = 0;
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u.ustuck = 0;
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u.ux = nux;
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u.uy = nuy;
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setsee();
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if (Punished)
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placebc(1);
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if (u.uswallow) {
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u.uswldtim = u.uswallow = 0;
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docrt();
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}
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nomul(0);
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if (levl[nux][nuy].typ == POOL && !Levitation)
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drown();
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(void) inshop();
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pickup(1);
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if (!Blind)
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read_engr_at(u.ux, u.uy);
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}
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int
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teleok(x, y)
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int x, y;
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{ /* might throw him into a POOL */
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return (isok(x, y) && !IS_ROCK(levl[x][y].typ) && !m_at(x, y) &&
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!sobj_at(ENORMOUS_ROCK, x, y) && !t_at(x, y)
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);
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/* Note: gold is permitted (because of vaults) */
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}
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int
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dotele()
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{
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if (
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#ifdef WIZARD
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!wizard &&
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#endif /* WIZARD */
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(!Teleportation || u.ulevel < 6 ||
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(pl_character[0] != 'W' && u.ulevel < 10))) {
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pline("You are not able to teleport at will.");
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return (0);
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}
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if (u.uhunger <= 100 || u.ustr < 6) {
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pline("You miss the strength for a teleport spell.");
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return (1);
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}
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tele();
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morehungry(100);
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return (1);
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}
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void
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placebc(attach)
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int attach;
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{
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if (!uchain || !uball) {
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impossible("Where are your chain and ball??");
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return;
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}
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uball->ox = uchain->ox = u.ux;
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uball->oy = uchain->oy = u.uy;
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if (attach) {
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uchain->nobj = fobj;
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fobj = uchain;
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if (!carried(uball)) {
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uball->nobj = fobj;
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fobj = uball;
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}
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}
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}
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void
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unplacebc()
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{
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if (!carried(uball)) {
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freeobj(uball);
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unpobj(uball);
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}
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freeobj(uchain);
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unpobj(uchain);
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}
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void
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level_tele()
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{
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int newlevel;
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if (Teleport_control) {
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char buf[BUFSZ];
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do {
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pline("To what level do you want to teleport? [type a number] ");
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getlin(buf);
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} while (!digit(buf[0]) && (buf[0] != '-' || !digit(buf[1])));
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newlevel = atoi(buf);
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} else {
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newlevel = 5 + rn2(20); /* 5 - 24 */
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if (dlevel == newlevel) {
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if (!xdnstair)
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newlevel--;
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else
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newlevel++;
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}
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}
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if (newlevel >= 30) {
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if (newlevel > MAXLEVEL)
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newlevel = MAXLEVEL;
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pline("You arrive at the center of the earth ...");
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pline("Unfortunately it is here that hell is located.");
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if (Fire_resistance) {
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pline("But the fire doesn't seem to harm you.");
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} else {
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pline("You burn to a crisp.");
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dlevel = maxdlevel = newlevel;
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killer = "visit to the hell";
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done("burned");
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}
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}
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if (newlevel < 0) {
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newlevel = 0;
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pline("You are now high above the clouds ...");
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if (Levitation) {
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pline("You float gently down to earth.");
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done("escaped");
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}
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pline("Unfortunately, you don't know how to fly.");
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pline("You fall down a few thousand feet and break your neck.");
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dlevel = 0;
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killer = "fall";
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done("died");
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}
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goto_level(newlevel, FALSE); /* calls done("escaped") if
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* newlevel==0 */
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}
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void
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drown()
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{
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pline("You fall into a pool!");
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pline("You can't swim!");
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if (rn2(3) < u.uluck + 2) {
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/* most scrolls become unreadable */
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struct obj *obj;
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for (obj = invent; obj; obj = obj->nobj)
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if (obj->olet == SCROLL_SYM && rn2(12) > u.uluck)
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obj->otyp = SCR_BLANK_PAPER;
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/* we should perhaps merge these scrolls ? */
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pline("You attempt a teleport spell."); /* utcsri!carroll */
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(void) dotele();
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if (levl[u.ux][u.uy].typ != POOL)
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return;
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}
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pline("You drown ...");
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killer = "pool of water";
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done("drowned");
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}
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