void NPC::ShowDialog(std::string message)
{
    if (message != "0")
    {
        PacketBuilder(builder);
        builder.SetID(PACKET_NPC, PACKET_PLAYER);
        builder.AddByte(255);
        builder.AddByte(255);
        builder.AddChar(this->index);
        builder.AddChar(message.length());
        builder.AddString(message);

        UTIL_FOREACH(this->map->characters, character)
        {
            if (character->InRange(this))
            {
                character->player->client->Send(builder);
            }
        }
    }
}