Core/Movement: correct no point recalculation on speed change in TargetedMovementGenerator

(cherry picked from commit 4d7e7a97b329dc8ee4354f7be26c5e5efbaeba6b)

2 files changed, 7 insertions, 3 deletions

diff --git a/src/server/game/Movement/MovementGenerators/TargetedMovementGenerator.cpp b/src/server/game/Movement/MovementGenerators/TargetedMovementGenerator.cpp
index 122156f165e..a4efd581a4e 100755
--- a/src/server/game/Movement/MovementGenerators/TargetedMovementGenerator.cpp
+++ b/src/server/game/Movement/MovementGenerators/TargetedMovementGenerator.cpp
@@ -82,7 +82,9 @@ bool TargetedMovementGenerator<T, D>::DoUpdate(T* owner, uint32 diff)
     }
 
     if (targetMoved)
-        SetTargetLocation(owner, targetMoved);
+        SetTargetLocation(owner, true);
+    else if (_speedChanged)
+        SetTargetLocation(owner, false);
 
     if (!_targetReached && owner->movespline->Finalized())
     {
@@ -177,6 +179,7 @@ void TargetedMovementGenerator<T, D>::SetTargetLocation(T* owner, bool updateDes
 
     _targetReached = false;
     _recalculateTravel = false;
+    _speedChanged = false;
 
     AddUnitStateMove(owner);
 
diff --git a/src/server/game/Movement/MovementGenerators/TargetedMovementGenerator.h b/src/server/game/Movement/MovementGenerators/TargetedMovementGenerator.h
index 2bd04e292f4..9f4e3712b5c 100755
--- a/src/server/game/Movement/MovementGenerators/TargetedMovementGenerator.h
+++ b/src/server/game/Movement/MovementGenerators/TargetedMovementGenerator.h
@@ -42,12 +42,12 @@ template<class T, typename D>
 class TargetedMovementGenerator : public MovementGeneratorMedium< T, D >, public TargetedMovementGeneratorBase
 {
     public:
-        explicit TargetedMovementGenerator(Unit* target, float offset, float angle) : TargetedMovementGeneratorBase(target), _path(nullptr), _timer(0), _offset(offset), _angle(angle), _recalculateTravel(false), _targetReached(false), _interrupt(false) { }
+        explicit TargetedMovementGenerator(Unit* target, float offset, float angle) : TargetedMovementGeneratorBase(target), _path(nullptr), _timer(0), _offset(offset), _angle(angle), _recalculateTravel(false), _speedChanged(false), _targetReached(false), _interrupt(false) { }
         ~TargetedMovementGenerator();
 
         bool DoUpdate(T*, uint32);
 
-        void UnitSpeedChanged() override { _recalculateTravel = true; }
+        void UnitSpeedChanged() override { _speedChanged = true; }
 
         virtual void ClearUnitStateMove(T*) { }
         virtual void AddUnitStateMove(T*) { }
@@ -65,6 +65,7 @@ class TargetedMovementGenerator : public MovementGeneratorMedium< T, D >, public
         float _offset;
         float _angle;
         bool _recalculateTravel;
+        bool _speedChanged;
         bool _targetReached;
         bool _interrupt;
 };