From 6af26751e6409bc26872a0ef585b2c4f9917f1e7 Mon Sep 17 00:00:00 2001
From: Pasi Kallinen <paxed@alt.org>
Date: Wed, 1 Feb 2023 21:38:26 +0200
Subject: [PATCH] Monsters never try to pick up ball or chain

Apparently my m_move reorg made it possible for monsters to
pick up the chain attached to hero; explicitly prevent that.
---
 src/monmove.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/monmove.c b/src/monmove.c
index 0e70a2c62..ee087099a 100644
--- a/src/monmove.c
+++ b/src/monmove.c
@@ -849,6 +849,8 @@ mon_would_take_item(struct monst *mtmp, struct obj *otmp)
 {
     int pctload = (curr_mon_load(mtmp) * 100) / max_mon_load(mtmp);
 
+    if (otmp == uball || otmp == uchain)
+        return FALSE;
     if (is_unicorn(mtmp->data) && objects[otmp->otyp].oc_material != GEMSTONE)
         return FALSE;
     if (!mindless(mtmp->data) && !is_animal(mtmp->data) && pctload < 75
-- 
2.50.1