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/Commands/cs_gm.cpp

@@ -103,9 +103,15 @@ public:
 
         WorldPacket data;
         if (strncmp(args, "on", 3) == 0)
-            target->SendMovementSetCanFly(true);
+        {
+            target->AddUnitMovementFlag(MOVEMENTFLAG_CAN_FLY);
+            target->SendMovementCanFlyChange();
+        }
         else if (strncmp(args, "off", 4) == 0)
-            target->SendMovementSetCanFly(false);
+        {
+            target->RemoveUnitMovementFlag(MOVEMENTFLAG_CAN_FLY);
+            target->SendMovementCanFlyChange();
+        }
         else
         {
             handler->SendSysMessage(LANG_USE_BOL);