Minecraft.BiomeGen.B18.BiomeCache.getBiomeCacheBlock C# (CSharp) Method

        private BiomeCacheBlock getBiomeCacheBlock(int i, int j)
        {
            i >>= 4;
            j >>= 4;
            long l = (long)i & 0xffffffffL | ((long)j & 0xffffffffL) << 32;
            BiomeCacheBlock biomecacheblock = (BiomeCacheBlock)field_35730_c.getValueByKey(l);
            if (biomecacheblock == null)
            {
                biomecacheblock = new BiomeCacheBlock(this, i, j);
                field_35730_c.add(l, biomecacheblock);
                field_35728_d.Add(biomecacheblock);
            }
            biomecacheblock.field_35653_f = Convert.ToInt64(((TimeSpan)(DateTime.UtcNow - new DateTime(1970, 1, 1))).TotalMilliseconds);
            return biomecacheblock;
        }