Rochet2's version of QQrofl's/Tommy's Teleport Trigger

class Tele_Trigger : public CreatureScript
{
    public:
    Tele_Trigger() : CreatureScript("Tele_Trigger") { }
    struct Tele_TriggerAI : public ScriptedAI
    {
        Tele_TriggerAI(Creature * pCreature) : ScriptedAI(pCreature)
        {
            me->SetFlag(UNIT_FIELD_FLAGS, UNIT_FLAG_NOT_SELECTABLE);
            me->SetFloatValue(OBJECT_FIELD_SCALE_X, 0);
        }

        void MoveInLineOfSight(Unit * who)
        {
            if(!who || (!who->isAlive()) && who->GetTypeId() != TYPEID_PLAYER)
                return;

            if(me->IsWithinDistInMap(who, 9.0f) && who->GetTypeId() == TYPEID_PLAYER && me->GetDistance(who) <= 9.0f && who->ToPlayer()->GetSession()->GetSecurity() == SEC_PLAYER)
            {
                me->MonsterSay("You cannot be up here!", LANG_UNIVERSAL, who->GetGUID());
                who->ToPlayer()->TeleportTo(0, -13246.55f, 194.03f, 31.00f, 1.09f);
            }
        }
    }

    CreatureAI * GetAI(Creature * c) const
    {
        return new Tele_TriggerAI(c);
    }
}

void AddSC_npc_tele_trigger()
{
   new Tele_Trigger();
}