[unix-history] / usr / othersrc / games / hack / hack.engrave.c

/* Copyright (c) Stichting Mathematisch Centrum, Amsterdam, 1985. */
/* hack.engrave.c - version 1.0.3 */

#include	"hack.h"

extern char *nomovemsg;
extern char nul[];
extern struct obj zeroobj;
struct engr {
	struct engr *nxt_engr;
	char *engr_txt;
	xchar engr_x, engr_y;
	unsigned engr_lth;	/* for save & restore; not length of text */
	long engr_time;	/* moment engraving was (will be) finished */
	xchar engr_type;
#define	DUST	1
#define	ENGRAVE	2
#define	BURN	3
} *head_engr;

struct engr *
engr_at(x,y) register xchar x,y; {
register struct engr *ep = head_engr;
	while(ep) {
		if(x == ep->engr_x && y == ep->engr_y)
			return(ep);
		ep = ep->nxt_engr;
	}
	return((struct engr *) 0);
}

sengr_at(s,x,y) register char *s; register xchar x,y; {
register struct engr *ep = engr_at(x,y);
register char *t;
register int n;
	if(ep && ep->engr_time <= moves) {
		t = ep->engr_txt;
/*
		if(!strcmp(s,t)) return(1);
*/
		n = strlen(s);
		while(*t) {
			if(!strncmp(s,t,n)) return(1);
			t++;
		}
	}
	return(0);
}

u_wipe_engr(cnt)
register int cnt;
{
	if(!u.uswallow && !Levitation)
		wipe_engr_at(u.ux, u.uy, cnt);
}

wipe_engr_at(x,y,cnt) register xchar x,y,cnt; {
register struct engr *ep = engr_at(x,y);
register int lth,pos;
char ch;
	if(ep){
		if((ep->engr_type != DUST) || Levitation) {
			cnt = rn2(1 + 50/(cnt+1)) ? 0 : 1;
		}
		lth = strlen(ep->engr_txt);
		if(lth && cnt > 0 ) {
			while(cnt--) {
				pos = rn2(lth);
				if((ch = ep->engr_txt[pos]) == ' ')
					continue;
				ep->engr_txt[pos] = (ch != '?') ? '?' : ' ';
			}
		}
		while(lth && ep->engr_txt[lth-1] == ' ')
			ep->engr_txt[--lth] = 0;
		while(ep->engr_txt[0] == ' ')
			ep->engr_txt++;
		if(!ep->engr_txt[0]) del_engr(ep);
	}
}

read_engr_at(x,y) register int x,y; {
register struct engr *ep = engr_at(x,y);
	if(ep && ep->engr_txt[0]) {
	    switch(ep->engr_type) {
	    case DUST:
		pline("Something is written here in the dust.");
		break;
	    case ENGRAVE:
		pline("Something is engraved here on the floor.");
		break;
	    case BURN:
		pline("Some text has been burned here in the floor.");
		break;
	    default:
		impossible("Something is written in a very strange way.");
	    }
	    pline("You read: \"%s\".", ep->engr_txt);
	}
}

make_engr_at(x,y,s)
register int x,y;
register char *s;
{
	register struct engr *ep;

	if(ep = engr_at(x,y))
	    del_engr(ep);
	ep = (struct engr *)
	    alloc((unsigned)(sizeof(struct engr) + strlen(s) + 1));
	ep->nxt_engr = head_engr;
	head_engr = ep;
	ep->engr_x = x;
	ep->engr_y = y;
	ep->engr_txt = (char *)(ep + 1);
	(void) strcpy(ep->engr_txt, s);
	ep->engr_time = 0;
	ep->engr_type = DUST;
	ep->engr_lth = strlen(s) + 1;
}

doengrave(){
register int len;
register char *sp;
register struct engr *ep, *oep = engr_at(u.ux,u.uy);
char buf[BUFSZ];
xchar type;
int spct;		/* number of leading spaces */
register struct obj *otmp;
	multi = 0;

	if(u.uswallow) {
		pline("You're joking. Hahaha!");	/* riv05!a3 */
		return(0);
	}

	/* one may write with finger, weapon or wand */
	otmp = getobj("#-)/", "write with");
	if(!otmp) return(0);

	if(otmp == &zeroobj)
		otmp = 0;
	if(otmp && otmp->otyp == WAN_FIRE && otmp->spe) {
		type = BURN;
		otmp->spe--;
	} else {
		/* first wield otmp */
		if(otmp != uwep) {
			if(uwep && uwep->cursed) {
			    /* Andreas Bormann */
			    pline("Since your weapon is welded to your hand,");
			    pline("you use the %s.", aobjnam(uwep, (char *) 0));
			    otmp = uwep;
			} else {
			    if(!otmp)
				pline("You are now empty-handed.");
			    else if(otmp->cursed)
				pline("The %s %s to your hand!",
				    aobjnam(otmp, "weld"),
				    (otmp->quan == 1) ? "itself" : "themselves");
			    else
				pline("You now wield %s.", doname(otmp));
			    setuwep(otmp);
			}
		}

		if(!otmp)
			type = DUST;
		else
		if(otmp->otyp == DAGGER || otmp->otyp == TWO_HANDED_SWORD ||
		otmp->otyp == CRYSKNIFE ||
		otmp->otyp == LONG_SWORD || otmp->otyp == AXE) {
			type = ENGRAVE;
			if((int)otmp->spe <= -3) {
				type = DUST;
				pline("Your %s too dull for engraving.",
					aobjnam(otmp, "are"));
				if(oep && oep->engr_type != DUST) return(1);
			}
		} else	type = DUST;
	}
	if(Levitation && type != BURN){		/* riv05!a3 */
		pline("You can't reach the floor!");
		return(1);
	}
	if(oep && oep->engr_type == DUST){
		  pline("You wipe out the message that was written here.");
		  del_engr(oep);
		  oep = 0;
	}
	if(type == DUST && oep){
	pline("You cannot wipe out the message that is %s in the rock.",
		    (oep->engr_type == BURN) ? "burned" : "engraved");
		  return(1);
	}

	pline("What do you want to %s on the floor here? ",
	  (type == ENGRAVE) ? "engrave" : (type == BURN) ? "burn" : "write");
	getlin(buf);
	clrlin();
	spct = 0;
	sp = buf;
	while(*sp == ' ') spct++, sp++;
	len = strlen(sp);
	if(!len || *buf == '\033') {
		if(type == BURN) otmp->spe++;
		return(0);
	}
	
	switch(type) {
	case DUST:
	case BURN:
		if(len > 15) {
			multi = -(len/10);
			nomovemsg = "You finished writing.";
		}
		break;
	case ENGRAVE:		/* here otmp != 0 */
		{	int len2 = (otmp->spe + 3) * 2 + 1;

			pline("Your %s dull.", aobjnam(otmp, "get"));
			if(len2 < len) {
				len = len2;
				sp[len] = 0;
				otmp->spe = -3;
				nomovemsg = "You cannot engrave more.";
			} else {
				otmp->spe -= len/2;
				nomovemsg = "You finished engraving.";
			}
			multi = -len;
		}
		break;
	}
	if(oep) len += strlen(oep->engr_txt) + spct;
	ep = (struct engr *) alloc((unsigned)(sizeof(struct engr) + len + 1));
	ep->nxt_engr = head_engr;
	head_engr = ep;
	ep->engr_x = u.ux;
	ep->engr_y = u.uy;
	sp = (char *)(ep + 1);	/* (char *)ep + sizeof(struct engr) */
	ep->engr_txt = sp;
	if(oep) {
		(void) strcpy(sp, oep->engr_txt);
		(void) strcat(sp, buf);
		del_engr(oep);
	} else
		(void) strcpy(sp, buf);
	ep->engr_lth = len+1;
	ep->engr_type = type;
	ep->engr_time = moves-multi;

	/* kludge to protect pline against excessively long texts */
	if(len > BUFSZ-20) sp[BUFSZ-20] = 0;

	return(1);
}

save_engravings(fd) int fd; {
register struct engr *ep = head_engr;
	while(ep) {
		if(!ep->engr_lth || !ep->engr_txt[0]){
			ep = ep->nxt_engr;
			continue;
		}
		bwrite(fd, (char *) & (ep->engr_lth), sizeof(ep->engr_lth));
		bwrite(fd, (char *) ep, sizeof(struct engr) + ep->engr_lth);
		ep = ep->nxt_engr;
	}
	bwrite(fd, (char *) nul, sizeof(unsigned));
	head_engr = 0;
}

rest_engravings(fd) int fd; {
register struct engr *ep;
unsigned lth;
	head_engr = 0;
	while(1) {
		mread(fd, (char *) &lth, sizeof(unsigned));
		if(lth == 0) return;
		ep = (struct engr *) alloc(sizeof(struct engr) + lth);
		mread(fd, (char *) ep, sizeof(struct engr) + lth);
		ep->nxt_engr = head_engr;
		ep->engr_txt = (char *) (ep + 1);	/* Andreas Bormann */
		head_engr = ep;
	}
}

del_engr(ep) register struct engr *ep; {
register struct engr *ept;
	if(ep == head_engr)
		head_engr = ep->nxt_engr;
	else {
		for(ept = head_engr; ept; ept = ept->nxt_engr) {
			if(ept->nxt_engr == ep) {
				ept->nxt_engr = ep->nxt_engr;
				goto fnd;
			}
		}
		impossible("Error in del_engr?");
		return;
	fnd:	;
	}
	free((char *) ep);
}
Commit	Line	Data
7c496796 WJ	1	/* Copyright (c) Stichting Mathematisch Centrum, Amsterdam, 1985. */
	2	/* hack.engrave.c - version 1.0.3 */
	3
	4	#include "hack.h"
	5
	6	extern char *nomovemsg;
	7	extern char nul[];
	8	extern struct obj zeroobj;
	9	struct engr {
	10	struct engr *nxt_engr;
	11	char *engr_txt;
	12	xchar engr_x, engr_y;
	13	unsigned engr_lth; /* for save & restore; not length of text */
	14	long engr_time; /* moment engraving was (will be) finished */
	15	xchar engr_type;
	16	#define DUST 1
	17	#define ENGRAVE 2
	18	#define BURN 3
	19	} *head_engr;
	20
	21	struct engr *
	22	engr_at(x,y) register xchar x,y; {
	23	register struct engr *ep = head_engr;
	24	while(ep) {
	25	if(x == ep->engr_x && y == ep->engr_y)
	26	return(ep);
	27	ep = ep->nxt_engr;
	28	}
	29	return((struct engr *) 0);
	30	}
	31
	32	sengr_at(s,x,y) register char *s; register xchar x,y; {
	33	register struct engr *ep = engr_at(x,y);
	34	register char *t;
	35	register int n;
	36	if(ep && ep->engr_time <= moves) {
	37	t = ep->engr_txt;
	38	/*
	39	if(!strcmp(s,t)) return(1);
	40	*/
	41	n = strlen(s);
	42	while(*t) {
	43	if(!strncmp(s,t,n)) return(1);
	44	t++;
	45	}
	46	}
	47	return(0);
	48	}
	49
	50	u_wipe_engr(cnt)
	51	register int cnt;
	52	{
	53	if(!u.uswallow && !Levitation)
	54	wipe_engr_at(u.ux, u.uy, cnt);
	55	}
	56
	57	wipe_engr_at(x,y,cnt) register xchar x,y,cnt; {
	58	register struct engr *ep = engr_at(x,y);
	59	register int lth,pos;
	60	char ch;
	61	if(ep){
	62	if((ep->engr_type != DUST) \|\| Levitation) {
	63	cnt = rn2(1 + 50/(cnt+1)) ? 0 : 1;
	64	}
65	lth = strlen(ep->engr_txt);
66	if(lth && cnt > 0 ) {
67	while(cnt--) {
68	pos = rn2(lth);
69	if((ch = ep->engr_txt[pos]) == ' ')
70	continue;
71	ep->engr_txt[pos] = (ch != '?') ? '?' : ' ';
72	}
73	}
74	while(lth && ep->engr_txt[lth-1] == ' ')
75	ep->engr_txt[--lth] = 0;
76	while(ep->engr_txt[0] == ' ')
77	ep->engr_txt++;
78	if(!ep->engr_txt[0]) del_engr(ep);
79	}
80	}
81
82	read_engr_at(x,y) register int x,y; {
83	register struct engr *ep = engr_at(x,y);
84	if(ep && ep->engr_txt[0]) {
85	switch(ep->engr_type) {
86	case DUST:
87	pline("Something is written here in the dust.");
88	break;
89	case ENGRAVE:
90	pline("Something is engraved here on the floor.");
91	break;
92	case BURN:
93	pline("Some text has been burned here in the floor.");
94	break;
95	default:
96	impossible("Something is written in a very strange way.");
97	}
98	pline("You read: \"%s\".", ep->engr_txt);
99	}
100	}
101
102	make_engr_at(x,y,s)
103	register int x,y;
104	register char *s;
105	{
106	register struct engr *ep;
107
108	if(ep = engr_at(x,y))
109	del_engr(ep);
110	ep = (struct engr *)
111	alloc((unsigned)(sizeof(struct engr) + strlen(s) + 1));
112	ep->nxt_engr = head_engr;
113	head_engr = ep;
114	ep->engr_x = x;
115	ep->engr_y = y;
116	ep->engr_txt = (char *)(ep + 1);
117	(void) strcpy(ep->engr_txt, s);
118	ep->engr_time = 0;
119	ep->engr_type = DUST;
120	ep->engr_lth = strlen(s) + 1;
121	}
122
123	doengrave(){
124	register int len;
125	register char *sp;
126	register struct engr ep, oep = engr_at(u.ux,u.uy);
127	char buf[BUFSZ];
128	xchar type;
129	int spct; /* number of leading spaces */
130	register struct obj *otmp;
131	multi = 0;
132
133	if(u.uswallow) {
134	pline("You're joking. Hahaha!"); /* riv05!a3 */
135	return(0);
136	}
137
138	/* one may write with finger, weapon or wand */
139	otmp = getobj("#-)/", "write with");
140	if(!otmp) return(0);
141
142	if(otmp == &zeroobj)
143	otmp = 0;
144	if(otmp && otmp->otyp == WAN_FIRE && otmp->spe) {
145	type = BURN;
146	otmp->spe--;
147	} else {
148	/* first wield otmp */
149	if(otmp != uwep) {
150	if(uwep && uwep->cursed) {
151	/* Andreas Bormann */
152	pline("Since your weapon is welded to your hand,");
153	pline("you use the %s.", aobjnam(uwep, (char *) 0));
154	otmp = uwep;
155	} else {
156	if(!otmp)
157	pline("You are now empty-handed.");
158	else if(otmp->cursed)
159	pline("The %s %s to your hand!",
160	aobjnam(otmp, "weld"),
161	(otmp->quan == 1) ? "itself" : "themselves");
162	else
163	pline("You now wield %s.", doname(otmp));
164	setuwep(otmp);
165	}
166	}
167
168	if(!otmp)
169	type = DUST;
170	else
171	if(otmp->otyp == DAGGER \|\| otmp->otyp == TWO_HANDED_SWORD \|\|
172	otmp->otyp == CRYSKNIFE \|\|
173	otmp->otyp == LONG_SWORD \|\| otmp->otyp == AXE) {
174	type = ENGRAVE;
175	if((int)otmp->spe <= -3) {
176	type = DUST;
177	pline("Your %s too dull for engraving.",
178	aobjnam(otmp, "are"));
179	if(oep && oep->engr_type != DUST) return(1);
180	}
181	} else type = DUST;
182	}
183	if(Levitation && type != BURN){ /* riv05!a3 */
184	pline("You can't reach the floor!");
185	return(1);
186	}
187	if(oep && oep->engr_type == DUST){
188	pline("You wipe out the message that was written here.");
189	del_engr(oep);
190	oep = 0;
191	}
192	if(type == DUST && oep){
193	pline("You cannot wipe out the message that is %s in the rock.",
194	(oep->engr_type == BURN) ? "burned" : "engraved");
195	return(1);
196	}
197
198	pline("What do you want to %s on the floor here? ",
199	(type == ENGRAVE) ? "engrave" : (type == BURN) ? "burn" : "write");
200	getlin(buf);
201	clrlin();
202	spct = 0;
203	sp = buf;
204	while(*sp == ' ') spct++, sp++;
205	len = strlen(sp);
206	if(!len \|\| *buf == '\033') {
207	if(type == BURN) otmp->spe++;
208	return(0);
209	}
210
211	switch(type) {
212	case DUST:
213	case BURN:
214	if(len > 15) {
215	multi = -(len/10);
216	nomovemsg = "You finished writing.";
217	}
218	break;
219	case ENGRAVE: /* here otmp != 0 */
220	{ int len2 = (otmp->spe + 3) * 2 + 1;
221
222	pline("Your %s dull.", aobjnam(otmp, "get"));
223	if(len2 < len) {
224	len = len2;
225	sp[len] = 0;
226	otmp->spe = -3;
227	nomovemsg = "You cannot engrave more.";
228	} else {
229	otmp->spe -= len/2;
230	nomovemsg = "You finished engraving.";
231	}
232	multi = -len;
233	}
234	break;
235	}
236	if(oep) len += strlen(oep->engr_txt) + spct;
237	ep = (struct engr *) alloc((unsigned)(sizeof(struct engr) + len + 1));
238	ep->nxt_engr = head_engr;
239	head_engr = ep;
240	ep->engr_x = u.ux;
241	ep->engr_y = u.uy;
242	sp = (char )(ep + 1); / (char )ep + sizeof(struct engr) /
243	ep->engr_txt = sp;
244	if(oep) {
245	(void) strcpy(sp, oep->engr_txt);
246	(void) strcat(sp, buf);
247	del_engr(oep);
248	} else
249	(void) strcpy(sp, buf);
250	ep->engr_lth = len+1;
251	ep->engr_type = type;
252	ep->engr_time = moves-multi;
253
254	/* kludge to protect pline against excessively long texts */
255	if(len > BUFSZ-20) sp[BUFSZ-20] = 0;
256
257	return(1);
258	}
259
260	save_engravings(fd) int fd; {
261	register struct engr *ep = head_engr;
262	while(ep) {
263	if(!ep->engr_lth \|\| !ep->engr_txt[0]){
264	ep = ep->nxt_engr;
265	continue;
266	}
267	bwrite(fd, (char *) & (ep->engr_lth), sizeof(ep->engr_lth));
268	bwrite(fd, (char *) ep, sizeof(struct engr) + ep->engr_lth);
269	ep = ep->nxt_engr;
270	}
271	bwrite(fd, (char *) nul, sizeof(unsigned));
272	head_engr = 0;
273	}
274
275	rest_engravings(fd) int fd; {
276	register struct engr *ep;
277	unsigned lth;
278	head_engr = 0;
279	while(1) {
280	mread(fd, (char *) &lth, sizeof(unsigned));
281	if(lth == 0) return;
282	ep = (struct engr *) alloc(sizeof(struct engr) + lth);
283	mread(fd, (char *) ep, sizeof(struct engr) + lth);
284	ep->nxt_engr = head_engr;
285	ep->engr_txt = (char ) (ep + 1); / Andreas Bormann */
286	head_engr = ep;
287	}
288	}
289
290	del_engr(ep) register struct engr *ep; {
291	register struct engr *ept;
292	if(ep == head_engr)
293	head_engr = ep->nxt_engr;
294	else {
295	for(ept = head_engr; ept; ept = ept->nxt_engr) {
296	if(ept->nxt_engr == ep) {
297	ept->nxt_engr = ep->nxt_engr;
298	goto fnd;
299	}
300	}
301	impossible("Error in del_engr?");
302	return;
303	fnd: ;
304	}
305	free((char *) ep);
306	}