package db type Block struct { posx, posy, posz int data []byte mtime int64 } type DBAccessor interface { Migrate() error FindLatestBlocks(mintime int64, limit int) ([]Block, error) FindBlocks(posx int, posz int, posystart int, posyend int) ([]Block, error) CountBlocks(x1, x2, y1, y2, z1, z2 int) (int, error) }