package metainfo import "github.com/anacrolix/missinggo" type Piece struct { Info *Info i int } func (p Piece) Length() int64 { if p.i == p.Info.NumPieces()-1 { return p.Info.TotalLength() - int64(p.i)*p.Info.PieceLength } return p.Info.PieceLength } func (p Piece) Offset() int64 { return int64(p.i) * p.Info.PieceLength } func (p Piece) Hash() (ret Hash) { missinggo.CopyExact(&ret, p.Info.Pieces[p.i*20:(p.i+1)*20]) return } func (p Piece) Index() int { return p.i }