Core/SAI: Fix SMART_ACTION_WP_RESUME actually pausing next waypoint if the current path was not paused

Fixes #25519

(cherry picked from commit 5be7c2ad4f7cd561951e1285227211e03886703f)

3 files changed, 14 insertions, 1 deletions

diff --git a/src/server/game/AI/SmartScripts/SmartAI.cpp b/src/server/game/AI/SmartScripts/SmartAI.cpp
index 666f19074e9..4cf9a93c434 100644
--- a/src/server/game/AI/SmartScripts/SmartAI.cpp
+++ b/src/server/game/AI/SmartScripts/SmartAI.cpp
@@ -136,6 +136,17 @@ void SmartAI::PausePath(uint32 delay, bool forced)
     GetScript()->ProcessEventsFor(SMART_EVENT_WAYPOINT_PAUSED, nullptr, _currentWaypointNode, GetScript()->GetPathId());
 }
 
+bool SmartAI::CanResumePath()
+{
+    if (!HasEscortState(SMART_ESCORT_ESCORTING))
+    {
+        // The whole resume logic doesn't support this case
+        return false;
+    }
+
+    return HasEscortState(SMART_ESCORT_PAUSED);
+}
+
 void SmartAI::StopPath(uint32 DespawnTime, uint32 quest, bool fail)
 {
     if (!HasEscortState(SMART_ESCORT_ESCORTING))
diff --git a/src/server/game/AI/SmartScripts/SmartAI.h b/src/server/game/AI/SmartScripts/SmartAI.h
index e2ced61b505..38625f3045c 100644
--- a/src/server/game/AI/SmartScripts/SmartAI.h
+++ b/src/server/game/AI/SmartScripts/SmartAI.h
@@ -52,6 +52,7 @@ class TC_GAME_API SmartAI : public CreatureAI
         void StartPath(bool run = false, uint32 pathId = 0, bool repeat = false, Unit* invoker = nullptr, uint32 nodeId = 1);
         bool LoadPath(uint32 entry);
         void PausePath(uint32 delay, bool forced = false);
+        bool CanResumePath();
         void StopPath(uint32 DespawnTime = 0, uint32 quest = 0, bool fail = false);
         void EndPath(bool fail = false);
         void ResumePath();
diff --git a/src/server/game/AI/SmartScripts/SmartScript.cpp b/src/server/game/AI/SmartScripts/SmartScript.cpp
index 1eed9259906..bdca0258946 100644
--- a/src/server/game/AI/SmartScripts/SmartScript.cpp
+++ b/src/server/game/AI/SmartScripts/SmartScript.cpp
@@ -1489,7 +1489,8 @@ void SmartScript::ProcessAction(SmartScriptHolder& e, Unit* unit, uint32 var0, u
                 break;
 
             // Set the timer to 1 ms so the path will be resumed on next update loop
-            ENSURE_AI(SmartAI, me->AI())->SetWPPauseTimer(1);
+            if (ENSURE_AI(SmartAI, me->AI())->CanResumePath())
+                ENSURE_AI(SmartAI, me->AI())->SetWPPauseTimer(1);
             break;
         }
         case SMART_ACTION_SET_ORIENTATION: