internal void Serialize(ServerMessage Message)
        {
            Message.AddInt32((int)this.ID);
            Message.AddString(this.catalogName);
            Message.AddBoolean(false);
            Message.AddInt32(this.creditCost);
            Message.AddInt32(crystalCost > 0 ? this.crystalCost : this.pixelCost);
            Message.AddInt32(crystalCost > 0 ? CURRENCY_USED : 0); // Pixel or crystal?
            Message.AddBoolean(true); // AllowBuy or AllowGift

            Message.AddInt32(baseID > 0 ? 1 : 0); // items on pack

            if (baseID > 0)
            {
                // and serialize it
                Message.AddString(GetBaseItem().Type.ToString());
                Message.AddInt32(GetBaseItem().SpriteId);
                // extradata
                if (catalogName.Contains("wallpaper_single") || catalogName.Contains("floor_single") || catalogName.Contains("landscape_single"))
                {
                    string[] Analyze = catalogName.Split('_');
                    Message.AddString(Analyze[2]);
                }
                else if (this.songID > 0 && GetBaseItem().InteractionType == InteractionType.musicdisc)
                {
                    Message.AddString(songID.ToString());
                }
                else
                {
                    Message.AddString(this.specialText);
                }
                Message.AddInt32(amount);
                if (!this.isLimited)
                    Message.AddInt32(0); // getItemDuration
            }

            Message.AddBoolean(isLimited); // IsLimited

            if (isLimited)
            {
                Message.AddInt32(this.limitedInStock);
                Message.AddInt32(this.limitedInStock - this.limitedSold);
                Message.AddInt32(0); // club_level
            }


            Message.AddBoolean(allowMassBuy); // IsOffer
        }