From 3555f5916dd3c8ce7c1907b1a2ddbdc9b88c0a83 Mon Sep 17 00:00:00 2001
From: IntelligentQuantum <IntelligentQuantum@ProtonMail.Com>
Date: Sun, 17 Apr 2022 06:16:08 +0430
Subject: [PATCH] fix(Core/SmartScripts): don't allow to start a new SAI
 actionlist while the entity is already running one (#10230)

* cherry-pick commit (https://github.com/TrinityCore/TrinityCore/commit/2b1cde25604b6400ac327801d8e1649e30688f5a)
---
 src/server/game/AI/SmartScripts/SmartScript.cpp | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/server/game/AI/SmartScripts/SmartScript.cpp b/src/server/game/AI/SmartScripts/SmartScript.cpp
index 57ab11041..49eb92a46 100644
--- a/src/server/game/AI/SmartScripts/SmartScript.cpp
+++ b/src/server/game/AI/SmartScripts/SmartScript.cpp
@@ -5075,6 +5075,12 @@ void SmartScript::SetScript9(SmartScriptHolder& e, uint32 entry)
         return;
     }
 
+    // Do NOT allow to start a new actionlist if a previous one is already running. We need to always finish the current actionlist
+    if (!mTimedActionList.empty())
+    {
+        return;
+    }
+
     mTimedActionList.clear();
     mTimedActionList = sSmartScriptMgr->GetScript(entry, SMART_SCRIPT_TYPE_TIMED_ACTIONLIST);
     if (mTimedActionList.empty())