val chunkCoords = BlockPos(pos.x >> 4, 0, pos.z >> 4)
    val chunk = chunks.getOrElseUpdate(chunkCoords, {
      val oldChunk = world.getChunkFromChunkCoords(chunkCoords.x, chunkCoords.z)
      val newChunk = world.getChunkProvider match {
        case c: ChunkProviderClient => c.provideChunk(chunkCoords.x, chunkCoords.z)
        case s: ChunkProviderServer =>
          s.currentChunkProvider.provideChunk(chunkCoords.x, chunkCoords.z)
      }
      newChunk
    })
    val chunkPos = BlockPos(pos.x & 15, pos.y, pos.z & 15)
    val localPos = position - pos
    blocks += localPos ->(chunk.getBlock(chunkPos.x, chunkPos.y, chunkPos.z), chunk.getBlockMetadata(chunkPos.x, chunkPos.y, chunkPos.z))