MiningGameServer.NetworkPlayer.UpdateCache C# (CSharp) Méthode

        public void UpdateCache()
        {
            var blockPos = new Vector2((int)(EntityPosition.X / GameServer.BlockSize), (int)(EntityPosition.Y / GameServer.BlockSize));

            short startX = (short)MathHelper.Clamp((int)blockPos.X - (750 / GameServer.BlockSize), 0, GameServer.WorldSizeX);
            short startY = (short)MathHelper.Clamp((int)blockPos.Y - (750 / GameServer.BlockSize), 0, GameServer.WorldSizeY);
            short endX = (short)MathHelper.Clamp(startX + 64, 0, GameServer.WorldSizeX);
            short endY = (short)MathHelper.Clamp(startY + 64, 0, GameServer.WorldSizeY);

            for (short x = startX; x < endX; x++)
            {
                Packet packet = new Packet();
                //Generate two bitmasks where each bit determines if the block's ID/MD are updated.
                long[] masks = GenerateRowBitMask(x);
                long maskID = masks[0];
                long maskMD = masks[1];
                //No updates
                if (maskID == 0 && maskMD == 0) continue;

                int numBitsID = GetNumBitsSet(maskID);
                int numBitsMD = GetNumBitsSet(maskMD);
                //If we're only setting one block, just ignore the bitmask and send the block itself.
                if (numBitsID == 1 && numBitsMD == 1)
                {
                    int oneX = 0;
                    int oneY = 0;
                    for (int i = 0; i < 64; i++)
                    {
                        if ((maskID & ((long)1 << i)) == 0)
                        {
                            if ((maskMD & ((long)1 << i)) == 0) continue;
                        }

                        oneX = x;
                        oneY = startY + i;
                    }
                    PlayerBlockCache[oneX, oneY].ID = GameServer.WorldBlocks[oneX, oneY].ID;
                    PlayerBlockCache[oneX, oneY].MetaData = GameServer.WorldBlocks[oneX, oneY].MetaData;
                    Packet packet2 = new Packet1SCGameEvent(GameServer.GameEvents.Block_Set, (short)oneX, (short)oneY, GameServer.WorldBlocks[oneX, oneY].ID, GameServer.WorldBlocks[oneX, oneY].MetaData);
                    GameServer.ServerNetworkManager.SendPacket(packet2, NetConnection);
                    continue;
                }

                for (int i = 0; i < endY - startY; i++)
                {
                    BlockData curData = GameServer.WorldBlocks[x, startY + i];
                    bool IDUpdate = (maskID & ((long) 1 << i)) != 0;
                    bool MDUpdate = (maskMD & ((long) 1 << i)) != 0;
                    if (!IDUpdate && !MDUpdate) continue;

                    if (IDUpdate)
                    {
                        packet.WriteShort(curData.ID);
                        PlayerBlockCache[x, startY + i].ID = curData.ID;
                    }
                    if(MDUpdate)
                    {
                        packet.WriteByte(curData.MetaData);
                        PlayerBlockCache[x, startY + i].MetaData = curData.MetaData;
                    }
                }

                Packet p = new Packet1SCGameEvent(GameServer.GameEvents.Block_Set_Line);
                p.WriteShort(x);
                p.WriteShort(startY);
                p.WriteLong(maskID);
                p.WriteLong(maskMD);
                p.WriteBytes(packet.GetData());
                GameServer.ServerNetworkManager.SendPacket(p, NetConnection);
            }
        }