400 lines
10 KiB
C
400 lines
10 KiB
C
/* $NetBSD: hack.engrave.c,v 1.14 2011/08/07 06:03:45 dholland 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.engrave.c,v 1.14 2011/08/07 06:03:45 dholland 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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struct engr {
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struct engr *nxt_engr;
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char *engr_txt;
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xchar engr_x, engr_y;
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unsigned engr_lth; /* for save & restore; not length of
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* text */
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long engr_time; /* moment engraving was (will be)
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* finished */
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xchar engr_type;
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#define DUST 1
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#define ENGRAVE 2
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#define BURN 3
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};
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static struct engr *head_engr;
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static void del_engr(struct engr *);
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static struct engr *
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engr_at(xchar x, xchar y)
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{
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struct engr *ep = head_engr;
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while (ep) {
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if (x == ep->engr_x && y == ep->engr_y)
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return (ep);
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ep = ep->nxt_engr;
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}
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return ((struct engr *) 0);
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}
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int
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sengr_at(const char *s, xchar x, xchar y)
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{
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struct engr *ep = engr_at(x, y);
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char *t;
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size_t n;
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if (ep && ep->engr_time <= moves) {
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t = ep->engr_txt;
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/*
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if(!strcmp(s,t)) return(1);
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*/
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n = strlen(s);
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while (*t) {
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if (!strncmp(s, t, n))
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return (1);
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t++;
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}
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}
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return (0);
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}
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void
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u_wipe_engr(int cnt)
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{
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if (!u.uswallow && !Levitation)
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wipe_engr_at(u.ux, u.uy, cnt);
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}
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void
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wipe_engr_at(xchar x, xchar y, xchar cnt)
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{
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struct engr *ep = engr_at(x, y);
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int pos;
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char ch;
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size_t lth;
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if (ep) {
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if ((ep->engr_type != DUST) || Levitation) {
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cnt = rn2(1 + 50 / (cnt + 1)) ? 0 : 1;
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}
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lth = strlen(ep->engr_txt);
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if (lth && cnt > 0) {
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while (cnt--) {
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pos = rn2(lth);
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if ((ch = ep->engr_txt[pos]) == ' ')
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continue;
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ep->engr_txt[pos] = (ch != '?') ? '?' : ' ';
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}
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}
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while (lth && ep->engr_txt[lth - 1] == ' ')
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ep->engr_txt[--lth] = 0;
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while (ep->engr_txt[0] == ' ')
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ep->engr_txt++;
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if (!ep->engr_txt[0])
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del_engr(ep);
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}
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}
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void
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read_engr_at(int x, int y)
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{
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struct engr *ep = engr_at(x, y);
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if (ep && ep->engr_txt[0]) {
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switch (ep->engr_type) {
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case DUST:
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pline("Something is written here in the dust.");
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break;
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case ENGRAVE:
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pline("Something is engraved here on the floor.");
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break;
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case BURN:
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pline("Some text has been burned here in the floor.");
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break;
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default:
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impossible("Something is written in a very strange way.");
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}
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pline("You read: \"%s\".", ep->engr_txt);
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}
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}
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void
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make_engr_at(int x, int y, const char *s)
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{
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struct engr *ep;
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if ((ep = engr_at(x, y)) != NULL)
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del_engr(ep);
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ep = alloc(sizeof(*ep) + strlen(s) + 1);
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ep->nxt_engr = head_engr;
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head_engr = ep;
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ep->engr_x = x;
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ep->engr_y = y;
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ep->engr_txt = (char *) (ep + 1);
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(void) strcpy(ep->engr_txt, s);
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ep->engr_time = 0;
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ep->engr_type = DUST;
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ep->engr_lth = strlen(s) + 1;
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}
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int
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doengrave(void)
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{
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int len;
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char *sp;
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struct engr *ep, *oep = engr_at(u.ux, u.uy);
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char buf[BUFSZ];
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xchar type;
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int spct; /* number of leading spaces */
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struct obj *otmp;
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multi = 0;
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if (u.uswallow) {
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pline("You're joking. Hahaha!"); /* riv05!a3 */
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return (0);
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}
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/* one may write with finger, weapon or wand */
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otmp = getobj("#-)/", "write with");
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if (!otmp)
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return (0);
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if (otmp == &zeroobj)
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otmp = 0;
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if (otmp && otmp->otyp == WAN_FIRE && otmp->spe) {
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type = BURN;
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otmp->spe--;
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} else {
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/* first wield otmp */
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if (otmp != uwep) {
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if (uwep && uwep->cursed) {
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/* Andreas Bormann */
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pline("Since your weapon is welded to your hand,");
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pline("you use the %s.", aobjnam(uwep, NULL));
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otmp = uwep;
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} else {
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if (!otmp)
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pline("You are now empty-handed.");
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else if (otmp->cursed)
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pline("The %s %s to your hand!",
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aobjnam(otmp, "weld"),
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(otmp->quan == 1) ? "itself" : "themselves");
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else
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pline("You now wield %s.", doname(otmp));
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setuwep(otmp);
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}
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}
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if (!otmp)
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type = DUST;
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else if (otmp->otyp == DAGGER || otmp->otyp == TWO_HANDED_SWORD ||
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otmp->otyp == CRYSKNIFE ||
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otmp->otyp == LONG_SWORD || otmp->otyp == AXE) {
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type = ENGRAVE;
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if ((int) otmp->spe <= -3) {
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type = DUST;
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pline("Your %s too dull for engraving.",
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aobjnam(otmp, "are"));
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if (oep && oep->engr_type != DUST)
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return (1);
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}
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} else
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type = DUST;
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}
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if (Levitation && type != BURN) { /* riv05!a3 */
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pline("You can't reach the floor!");
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return (1);
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}
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if (oep && oep->engr_type == DUST) {
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pline("You wipe out the message that was written here.");
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del_engr(oep);
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oep = 0;
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}
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if (type == DUST && oep) {
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pline("You cannot wipe out the message that is %s in the rock.",
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(oep->engr_type == BURN) ? "burned" : "engraved");
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return (1);
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}
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pline("What do you want to %s on the floor here? ",
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(type == ENGRAVE) ? "engrave" : (type == BURN) ? "burn" : "write");
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getlin(buf);
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clrlin();
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spct = 0;
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sp = buf;
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while (*sp == ' ')
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spct++, sp++;
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len = strlen(sp);
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if (!len || *buf == '\033') {
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if (type == BURN)
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otmp->spe++;
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return (0);
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}
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switch (type) {
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case DUST:
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case BURN:
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if (len > 15) {
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multi = -(len / 10);
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nomovemsg = "You finished writing.";
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}
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break;
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case ENGRAVE: /* here otmp != 0 */
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{
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int len2 = (otmp->spe + 3) * 2 + 1;
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pline("Your %s dull.", aobjnam(otmp, "get"));
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if (len2 < len) {
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len = len2;
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sp[len] = 0;
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otmp->spe = -3;
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nomovemsg = "You cannot engrave more.";
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} else {
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otmp->spe -= len / 2;
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nomovemsg = "You finished engraving.";
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}
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multi = -len;
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}
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break;
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}
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if (oep)
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len += strlen(oep->engr_txt) + spct;
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ep = alloc(sizeof(*ep) + len + 1);
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ep->nxt_engr = head_engr;
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head_engr = ep;
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ep->engr_x = u.ux;
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ep->engr_y = u.uy;
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sp = (char *) (ep + 1); /* (char *)ep + sizeof(struct engr) */
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ep->engr_txt = sp;
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if (oep) {
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(void) strcpy(sp, oep->engr_txt);
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(void) strcat(sp, buf);
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del_engr(oep);
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} else
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(void) strcpy(sp, buf);
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ep->engr_lth = len + 1;
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ep->engr_type = type;
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ep->engr_time = moves - multi;
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/* kludge to protect pline against excessively long texts */
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if (len > BUFSZ - 20)
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sp[BUFSZ - 20] = 0;
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return (1);
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}
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void
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save_engravings(int fd)
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{
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struct engr *ep = head_engr;
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while (ep) {
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if (!ep->engr_lth || !ep->engr_txt[0]) {
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ep = ep->nxt_engr;
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continue;
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}
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bwrite(fd, &(ep->engr_lth), sizeof(ep->engr_lth));
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bwrite(fd, ep, sizeof(struct engr) + ep->engr_lth);
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ep = ep->nxt_engr;
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}
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bwrite(fd, nul, sizeof(unsigned));
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head_engr = 0;
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}
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void
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rest_engravings(int fd)
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{
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struct engr *ep;
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unsigned lth;
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head_engr = 0;
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while (1) {
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mread(fd, <h, sizeof(unsigned));
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if (lth == 0)
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return;
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ep = alloc(sizeof(*ep) + lth);
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mread(fd, ep, sizeof(*ep) + lth);
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ep->nxt_engr = head_engr;
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ep->engr_txt = (char *) (ep + 1); /* Andreas Bormann */
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head_engr = ep;
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}
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}
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static void
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del_engr(struct engr *ep)
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{
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struct engr *ept;
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if (ep == head_engr)
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head_engr = ep->nxt_engr;
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else {
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for (ept = head_engr; ept; ept = ept->nxt_engr) {
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if (ept->nxt_engr == ep) {
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ept->nxt_engr = ep->nxt_engr;
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goto fnd;
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}
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}
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impossible("Error in del_engr?");
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return;
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fnd: ;
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}
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free(ep);
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}
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