Core/Movement

* Implemented a generic way of sending movement packets depending on who controls the unit (player or server controlled)
* Added possibility to specify extra elements in movement packets (such as speed, extra passenger guid, collision height and similar) without having to add a special element only for these
* Removed Unit::SendMovementFlagUpdate as it was something working only in 3.3.5a and earlier (no serverside HEARTBEAT opcode exists now)

src/server/scripts/EasternKingdoms/ScarletEnclave/chapter1.cpp

@@ -1001,10 +1001,7 @@ public:
             {
                 case 1:
                     if (Unit* car = Unit::GetCreature(*me, carGUID))
-                    {
-                        me->SetInFront(car);
-                        me->SendMovementFlagUpdate();
-                    }
+                        me->SetFacingToObject(car);
                     Talk(SAY_SCARLET_MINER_0);
                     SetRun(true);
                     IntroTimer = 4000;
@@ -1013,8 +1010,7 @@ public:
                 case 17:
                     if (Unit* car = Unit::GetCreature(*me, carGUID))
                     {
-                        me->SetInFront(car);
-                        me->SendMovementFlagUpdate();
+                        me->SetFacingToObject(car);
                         car->Relocate(car->GetPositionX(), car->GetPositionY(), me->GetPositionZ() + 1);
                         car->StopMoving();
                         car->RemoveAura(SPELL_CART_DRAG);