Core/TempSummon: Implement ForcedUnsummonDelayEvent. Similar to ForcedDespawnEvent for Creatures, this will unsummon TempSummon objects with specified delay.

Core/Vehicles: Implement ForcedUnsummonDelayEvent for creatures exiting vehicles. Fixes visual bug that showed creatures mounted on vehicle after being ejected.

src/server/game/Entities/Creature/TemporarySummon.cpp

@@ -224,8 +224,16 @@ void TempSummon::SetTempSummonType(TempSummonType type)
     m_type = type;
 }
 
-void TempSummon::UnSummon()
+void TempSummon::UnSummon(uint32 msTime)
 {
+    if (msTime)
+    {
+        ForcedUnsummonDelayEvent *pEvent = new ForcedUnsummonDelayEvent(*this);
+
+        m_Events.AddEvent(pEvent, m_Events.CalculateTime(msTime));
+        return;
+    }
+
     //ASSERT(!isPet());
     if (isPet())
     {
@@ -241,6 +249,12 @@ void TempSummon::UnSummon()
     AddObjectToRemoveList();
 }
 
+bool ForcedUnsummonDelayEvent::Execute(uint64 /*e_time*/, uint32 /*p_time*/)
+{
+    m_owner.UnSummon();
+    return true;
+}
+
 void TempSummon::RemoveFromWorld()
 {
     if (!IsInWorld())

src/server/game/Entities/Creature/TemporarySummon.h

@@ -29,7 +29,7 @@ class TempSummon : public Creature
         void Update(uint32 time);
         virtual void InitStats(uint32 lifetime);
         virtual void InitSummon();
-        void UnSummon();
+        void UnSummon(uint32 msTime = 0);
         void RemoveFromWorld();
         void SetTempSummonType(TempSummonType type);
         void SaveToDB(uint32 /*mapid*/, uint8 /*spawnMask*/, uint32 /*phaseMask*/) {}
@@ -97,5 +97,14 @@ class Puppet : public Minion
         Player *m_owner;
 };
 
+class ForcedUnsummonDelayEvent : public BasicEvent
+{
+public:
+    ForcedUnsummonDelayEvent(TempSummon& owner) : BasicEvent(), m_owner(owner) { }
+    bool Execute(uint64 e_time, uint32 p_time);
+
+private:
+    TempSummon& m_owner;
+};
 #endif
 

src/server/game/Entities/Unit/Unit.cpp

@@ -16711,7 +16711,7 @@ void Unit::_ExitVehicle(Position const* exitPosition)
             setDeathState(JUST_DIED);
         // If for other reason we as minion are exiting the vehicle (ejected, master unmounted) - unsummon
         else
-            ToTempSummon()->UnSummon();
+            ToTempSummon()->UnSummon(2000); // Approximation
     }
 }