region

Documentation

Index

• func In(cx, cy int) (int, int)
• type Region
  • func Create(name string) (r *Region, err error)
  • func Open(name string) (r *Region, err error)
  • func (r *Region) Close() error
  • func (r *Region) ExistSector(x, y int) bool
  • func (r *Region) ReadSector(x, y int) (data []byte, err error)
  • func (r *Region) WriteSector(x, y int, data []byte) error

Functions

func In

func In(cx, cy int) (int, int)

In calculate chunk's coordinates relative to region

Types

type Region

type Region struct {
	// contains filtered or unexported fields
}

Region contain 32*32 chunks in one .mca file

func Create

func Create(name string) (r *Region, err error)

Create open .mca file with os.O_CREATE|os. O_EXCL, and init the region

func Open

func Open(name string) (r *Region, err error)

Open open a .mca file and read the head. Close the Region after used.

func (*Region) Close

func (r *Region) Close() error

Close close the region file

func (*Region) ExistSector

func (r *Region) ExistSector(x, y int) bool

ExistSector return if a sector is exist

func (*Region) ReadSector

func (r *Region) ReadSector(x, y int) (data []byte, err error)

ReadSector find and read the Chunk data from region

func (*Region) WriteSector

func (r *Region) WriteSector(x, y int, data []byte) error

WriteSector write Chunk data into region file