Ensure that all actions are compared to fixed point in time (ie. world update start)

src/server/game/Handlers/MovementHandler.cpp

@@ -31,6 +31,7 @@
 #include "ObjectMgr.h"
 #include "MovementStructures.h"
 #include "Vehicle.h"
+#include "GameTime.h"
 
 #define MOVEMENT_PACKET_TIME_DELAY 0
 
@@ -382,7 +383,7 @@ void WorldSession::HandleMovementOpcodes(WorldPacket& recvPacket)
         plrMover->SetInWater(!plrMover->IsInWater() || plrMover->GetBaseMap()->IsUnderWater(movementInfo.pos.GetPositionX(), movementInfo.pos.GetPositionY(), movementInfo.pos.GetPositionZ()));
     }
 
-    uint32 mstime = getMSTime();
+    uint32 mstime = GameTime::GetGameTimeMS();
     /*----------------------*/
     if (m_clientTimeDelay == 0)
         m_clientTimeDelay = mstime - movementInfo.time;