EmuDevs - TrinityCore Create a pet for any class

/*
     Messing with the Pet system - Tutorial
*/
#include "Pet.h"

class npc_pet_tutorial : public CreatureScript
{
public:
    npc_pet_tutorial() : CreatureScript("npc_pet_tutorial") { }

    bool OnGossipHello(Player* player, Creature* creature)
    {
        if (player->GetPet())
            return false;

        player->ADD_GOSSIP_ITEM(GOSSIP_ICON_CHAT, "Create a pet", GOSSIP_SENDER_MAIN, GOSSIP_ACTION_INFO_DEF+1);
        player->SEND_GOSSIP_MENU(1, creature->GetGUID());
        return true;
    }

    bool OnGossipSelect(Player* player, Creature* creature, uint32 /* sender */, uint32 actions)
    {
        player->PlayerTalkClass->ClearMenus();

        if (actions == GOSSIP_ACTION_INFO_DEF+1)
            CreatePet(creature, player, 823);
        return true;
    }

    bool CreatePet(Creature* creature, Player* player, uint32 entry)
    {
        float x, y, z;
        player->GetPosition(x, y, z);

        Creature* petCreature = creature->SummonCreature(entry, x+2, y+1, z, 1, TEMPSUMMON_MANUAL_DESPAWN, 0);
        if (!petCreature)
            return false;

        Pet* pet = player->CreateTamedPetFrom(petCreature, 0);
        if (!pet)
            return false;

        pet->SetPower(POWER_HAPPINESS, 100);
        pet->AddUInt64Value(UNIT_FIELD_CREATEDBY, player->GetGUID());
        pet->SetUInt32Value(UNIT_FIELD_FACTIONTEMPLATE, player->getFaction());
        pet->SetUInt32Value(UNIT_FIELD_LEVEL, player->getLevel());
        pet->GetMap()->AddToMap(pet->ToCreature());
        pet->GetCharmInfo()->SetPetNumber(sObjectMgr->GeneratePetNumber(), true);
        player->SetMinion(pet, true);
        pet->SavePetToDB(PET_SAVE_AS_CURRENT);
        pet->InitTalentForLevel();
        pet->InitStatsForLevel(player->getLevel());
        player->PetSpellInitialize();

        petCreature->DespawnOrUnsummon(100);
        return true;
    }
};

void AddSC_pet_tut()
{
    new npc_pet_tutorial();
}