Example gossip TC 3.3.5

#include "Creature.h"
#include "Player.h"
#include "ScriptMgr.h"
#include "ScriptedGossip.h"
#include "ScriptedCreature.h"
#include "Define.h"

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

    struct example_AI : public ScriptedAI
    {
        example_AI(Creature* creature) : ScriptedAI(creature) { }

        bool GossipHello(Player* player) override
        {
            if (me->IsQuestGiver())
                player->PrepareQuestMenu(me->GetGUID());
            AddGossipItemFor(player, 0, "Example 1 - Show main menu", GOSSIP_SENDER_MAIN, GOSSIP_ACTION_INFO_DEF + 1);
            AddGossipItemFor(player, 0, "Example 2 - Exit", GOSSIP_SENDER_MAIN, GOSSIP_ACTION_INFO_DEF + 2);
            SendGossipMenuFor(player, GOSSIP_MENU_I_HAVE_LONG_KNOWN, me->GetGUID());
            return true;
        }

        bool GossipSelect(Player* player, uint32 /*menuId*/, uint32 gossipListId) override
        {
            uint32 const sender = player->PlayerTalkClass->GetGossipOptionSender(gossipListId);
            uint32 const action = player->PlayerTalkClass->GetGossipOptionAction(gossipListId);
            ClearGossipMenuFor(player);

            if (sender == GOSSIP_SENDER_MAIN)
            {
                if (action == GOSSIP_ACTION_INFO_DEF + 1)
                {
                    GossipHello(player);
                }
                if (action == GOSSIP_ACTION_INFO_DEF + 2)
                {
                    CloseGossipMenuFor(player);
                }
            }
            return true;
        }
    };

    CreatureAI* GetAI(Creature* creature) const override
    {
        return new example_AI(creature);
    }
};

void AddSC_example()
{
    new example();
}