From 0e3ed4b70ca74024a917df0f5512de5bc537a495 Mon Sep 17 00:00:00 2001
From: Procyonae <45432782+Procyonae@users.noreply.github.com>
Date: Tue, 2 Apr 2024 21:56:53 +0100
Subject: [PATCH] Random bit of wander code isn't unbiased (#72793)

* Hopefully fix zeds without stimulus in packs moving in one direction

* Update monmove.cpp
---
 src/monmove.cpp | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/monmove.cpp b/src/monmove.cpp
index e10d084e0468c..a2161d2140201 100644
--- a/src/monmove.cpp
+++ b/src/monmove.cpp
@@ -691,7 +691,10 @@ void monster::plan()
             }
             if( mon_plan.swarms ) {
                 if( rating < 5 ) { // Too crowded here
-                    wander_pos = get_location() + point( rng( 1, 3 ), rng( 1, 3 ) );
+                    wander_pos = get_location();
+                    while( wander_pos == get_location() ) {
+                        wander_pos += point( rng( -3, 3 ), rng( -3, 3 ) );
+                    }
                     wandf = 2;
                     mon_plan.target = nullptr;
                     // Swarm to the furthest ally you can see