EE Map Data - Array

        private int[,] copymap(Message mm)
        {
        int[,] mapdata = new int[100, 100];
        int[,] bgmapdata = new int[100, 100];
            uint c = mm.Count;
            uint kc = 13;
            while (kc < c)
            {
                int blockid = mm.GetInt(kc);
        int layer = mm.GetInt(kc +1);
                byte[] bytearray1 = mm.GetByteArray(kc + 2);
                byte[] bytearray2 = mm.GetByteArray(kc + 3);
                int bytelen = byte1.Length;
                for (int n = 0; n < bytelen; n += 2)
                {
            int x = Convert.ToInt32(bytearray1[n] << 8 | bytearray1[n + 1]);
            int y = Convert.ToInt32(bytearray2[n] << 8 | bytearray2[n + 1]);
            if (layer == 0)
            mapdata[x, y] = blockid;
            if (layer == 1)
            bgmapdata[x, y] = blockid;
                }
                if (blockid == 43)
                    kc += 5;
                else if (blockid == 242)
                    kc += 7;
                else kc += 4;
            }
        }