1 files changed, 306 insertions, 0 deletions

diff --git a/games/hack/hack.engrave.c b/games/hack/hack.engrave.c
new file mode 100644
index 000000000000..dc16c39f952c
--- /dev/null
+++ b/games/hack/hack.engrave.c
@@ -0,0 +1,306 @@
+/* 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);
+}