From ef3f75856919597e7366f0dc22c50f9fb49cd194 Mon Sep 17 00:00:00 2001
From: "nethack.rankin" <nethack.rankin>
Date: Tue, 29 May 2007 02:51:47 +0000
Subject: [PATCH] dull spellbook (trunk only)

      Something else <Someone> forwarded from the newsgroup long time ago:
attempting to read a dull spellbook ought to have a chance of making the
hero fall asleep.
---
 doc/fixes35.0 |  1 +
 src/spell.c   | 23 ++++++++++++++++++++++-
 2 files changed, 23 insertions(+), 1 deletion(-)

diff --git a/doc/fixes35.0 b/doc/fixes35.0
index 225180b9b..1a16289ed 100644
--- a/doc/fixes35.0
+++ b/doc/fixes35.0
@@ -345,6 +345,7 @@ some monsters will use fire to prevent selves being turned into green slime
 add `#vanquished' debug mode command
 C and #name commands are now same and use menu to choose monster vs object
 hallucination provides partial protection against gaze attacks
+attempting to read "dull" spellbook might cause hero to fall asleep
 
 
 Platform- and/or Interface-Specific New Features
diff --git a/src/spell.c b/src/spell.c
index 150551cb4..c1feb26f6 100644
--- a/src/spell.c
+++ b/src/spell.c
@@ -1,4 +1,4 @@
-/*	SCCS Id: @(#)spell.c	3.5	2006/12/06	*/
+/*	SCCS Id: @(#)spell.c	3.5	2007/05/29	*/
 /*	Copyright (c) M. Stephenson 1988			  */
 /* NetHack may be freely redistributed.  See license for details. */
 
@@ -427,6 +427,27 @@ register struct obj *spellbook;
 	register boolean confused = (Confusion != 0);
 	boolean too_hard = FALSE;
 
+	/* attempting to read dull book may make hero fall asleep */
+	if (!confused && booktype != SPE_BLANK_PAPER &&
+		!strcmp(OBJ_DESCR(objects[booktype]), "dull")) {
+	    const char *eyes;
+	    int dullbook = rnd(25) - ACURR(A_WIS);
+
+	    /* adjust chance if hero stayed awake, got interrupted, retries */
+	    if (context.spbook.delay && spellbook == context.spbook.book)
+		dullbook -= rnd(objects[booktype].oc_level);
+
+	    if (dullbook > 0) {
+		eyes = body_part(EYE);
+		if (eyecount(youmonst.data) > 1) eyes = makeplural(eyes);
+		pline("This book is so dull that you can't keep your %s open.",
+		      eyes);
+		dullbook += rnd(2 * objects[booktype].oc_level);
+		fall_asleep(-dullbook, TRUE);
+		return 1;
+	    }
+	}
+
 	if (context.spbook.delay && !confused && spellbook == context.spbook.book &&
 		    /* handle the sequence: start reading, get interrupted,
 		       have context.spbook.book become erased somehow, resume reading it */