From e450ca626d91b6fb56048e2ca8cb5e358d938587 Mon Sep 17 00:00:00 2001
From: "nethack.rankin" <nethack.rankin>
Date: Sat, 22 Aug 2009 00:02:09 +0000
Subject: [PATCH] fix #H1996 - digging message for missing boulder

     From a bug report, it was possible to get
|You hit the  with all your might.  You stop digging.
if a boulder went away--in his case, it was picked up by a giant--while
you were occupied trying to break it with a pick-axe.  The code explicitly
used "" to fill in the message when dig_target had an unexpected value.

     This just avoids giving the message in a case like this.  Possibly
extra stop_occupation() calls should be done instead, but I didn't want
to try to figure out how many would be needed (monster picks up object,
monster zaps wand of striking, others?).
---
 doc/fixes34.4 | 2 ++
 src/dig.c     | 5 +++--
 2 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/doc/fixes34.4 b/doc/fixes34.4
index d99322ad4..83d7a4ee1 100644
--- a/doc/fixes34.4
+++ b/doc/fixes34.4
@@ -382,6 +382,8 @@ trying to move down while levitating said "you are floating high above floor"
 	even when being stuck in floor or lava blocked full levitation
 hero poly'd into mimic and hiding as an object via #monster didn't unhide
 	when polymorphing into non-mimic
+message "You hit the  with all your might." could be issued if a boulder
+	went away while it was being dug/broken with a pick-axe
 
 
 Platform- and/or Interface-Specific Fixes
diff --git a/src/dig.c b/src/dig.c
index 7cee54617..924ac321c 100644
--- a/src/dig.c
+++ b/src/dig.c
@@ -1,5 +1,4 @@
 /* NetHack 3.5	dig.c	$Date$  $Revision$ */
-/*	SCCS Id: @(#)dig.c	3.5	2009/01/28	*/
 /* Copyright (c) Stichting Mathematisch Centrum, Amsterdam, 1985. */
 /* NetHack may be freely redistributed.  See license for details. */
 
@@ -456,8 +455,10 @@ cleanup:
 			      IS_DOOR(lev->typ) ? "door" : "wall", verb);
 			return(0);
 		    }
-		} else if (!IS_ROCK(lev->typ) && dig_target == DIGTYP_ROCK)
+		} else if (dig_target == DIGTYP_UNDIGGABLE ||
+			(dig_target == DIGTYP_ROCK && !IS_ROCK(lev->typ)))
 		    return(0); /* statue or boulder got taken */
+
 		if(!did_dig_msg) {
 		    You("hit the %s with all your might.",
 			d_target[dig_target]);