packet

package
v0.0.0-...-2a33acd Latest Latest
Warning

This package is not in the latest version of its module.

 Go to latest Published: Mar 20, 2021 License: MIT Imports: 12 Imported by: 0

Documentation

Index

Constants

This section is empty.

Variables

This section is empty.

Functions

This section is empty.

Types

type IncomingPacket 

type IncomingPacket struct {
	// Protobuf that this packet represents
	Proto *pb.Packet
	// Will be set if anything goes wrong
	Err error
	// contains filtered or unexported fields
}

func NewIncomingPacket 

func NewIncomingPacket(data []byte) *IncomingPacket

This takes in a packet, without the length varint. It is assumed that data is the entire packet, as this function does not know the length of the packet. Data should include the varint for the id at the start. This means that this function should be used for both compressed and uncompressed packets; other code should deal with decompression.

func (*IncomingPacket) CopyBool 

func (p *IncomingPacket) CopyBool() bool

func (*IncomingPacket) CopyByte 

func (p *IncomingPacket) CopyByte() byte

func (*IncomingPacket) CopyDouble 

func (p *IncomingPacket) CopyDouble() float64

func (*IncomingPacket) CopyFloat 

func (p *IncomingPacket) CopyFloat() float32

func (*IncomingPacket) CopyInt 

func (p *IncomingPacket) CopyInt() int32

func (*IncomingPacket) CopyItem 

func (p *IncomingPacket) CopyItem() *pb.Item

func (*IncomingPacket) CopyLong 

func (p *IncomingPacket) CopyLong() uint64

func (*IncomingPacket) CopyNullString 

func (p *IncomingPacket) CopyNullString() string

func (*IncomingPacket) CopyPosition 

func (p *IncomingPacket) CopyPosition() (int32, int32, int32)

func (*IncomingPacket) CopyProtocolString 

func (p *IncomingPacket) CopyProtocolString() string

func (*IncomingPacket) CopyRemainingBytes 

func (p *IncomingPacket) CopyRemainingBytes() []byte

func (*IncomingPacket) CopyShort 

func (p *IncomingPacket) CopyShort() int16

func (*IncomingPacket) CopyUUID 

func (p *IncomingPacket) CopyUUID() util.UUID

func (*IncomingPacket) CopyVarInt 

func (p *IncomingPacket) CopyVarInt() int32

func (*IncomingPacket) ID 

func (p *IncomingPacket) ID() int32

Returns old packet id. Should be converted using a packet.Spec.

func (*IncomingPacket) NewID 

func (p *IncomingPacket) NewID() packet.Serverbound

Returns the grpc packet id. Will return 0 if SetID has not been called.

func (*IncomingPacket) ReadBool 

func (p *IncomingPacket) ReadBool() bool

func (*IncomingPacket) ReadByte 

func (p *IncomingPacket) ReadByte() byte

func (*IncomingPacket) ReadBytes 

func (p *IncomingPacket) ReadBytes(num int32) []byte

func (*IncomingPacket) ReadDouble 

func (p *IncomingPacket) ReadDouble() float64

func (*IncomingPacket) ReadFloat 

func (p *IncomingPacket) ReadFloat() float32

func (*IncomingPacket) ReadInt 

func (p *IncomingPacket) ReadInt() int32

func (*IncomingPacket) ReadItem 

func (p *IncomingPacket) ReadItem() *pb.Item

func (*IncomingPacket) ReadLong 

func (p *IncomingPacket) ReadLong() uint64

func (*IncomingPacket) ReadNBT 

func (p *IncomingPacket) ReadNBT() *nbt.Tag

func (*IncomingPacket) ReadNullString 

func (p *IncomingPacket) ReadNullString() string

func (*IncomingPacket) ReadPosition 

func (p *IncomingPacket) ReadPosition() (int32, int32, int32)

func (*IncomingPacket) ReadProtocolString 

func (p *IncomingPacket) ReadProtocolString() string

func (*IncomingPacket) ReadRemainingBytes 

func (p *IncomingPacket) ReadRemainingBytes() []byte

func (*IncomingPacket) ReadShort 

func (p *IncomingPacket) ReadShort() int16

func (*IncomingPacket) ReadUUID 

func (p *IncomingPacket) ReadUUID() util.UUID

func (*IncomingPacket) ReadVarInt 

func (p *IncomingPacket) ReadVarInt() int32

func (*IncomingPacket) SetID 

func (p *IncomingPacket) SetID(id packet.Serverbound)

Should be used rarely. This will change the packet id that the server recieves. This should only be used when a packet can be parsed as seperate packets. For example, in 1.8, a block place packet can be a use item packet, depending on the fields. This is the only situation this should be used. Other than that, you should rely on the registry to set the packet ids.

func (*IncomingPacket) SetVersion 

func (p *IncomingPacket) SetVersion(version packet.Version)

Changes the way some values are parsed. Specifically, positions and items have changed between versions.

func (*IncomingPacket) WriteBool 

func (p *IncomingPacket) WriteBool(value bool)

func (*IncomingPacket) WriteByte 

func (p *IncomingPacket) WriteByte(value byte)

func (*IncomingPacket) WriteBytes 

func (p *IncomingPacket) WriteBytes(value []byte)

func (*IncomingPacket) WriteDouble 

func (p *IncomingPacket) WriteDouble(value float64)

func (*IncomingPacket) WriteFloat 

func (p *IncomingPacket) WriteFloat(value float32)

func (*IncomingPacket) WriteInt 

func (p *IncomingPacket) WriteInt(value int32)

func (*IncomingPacket) WriteItem 

func (p *IncomingPacket) WriteItem(item *pb.Item)

func (*IncomingPacket) WriteLong 

func (p *IncomingPacket) WriteLong(value uint64)

func (*IncomingPacket) WriteNullString 

func (p *IncomingPacket) WriteNullString(value string)

func (*IncomingPacket) WritePosition 

func (p *IncomingPacket) WritePosition(x, y, z int32)

func (*IncomingPacket) WriteProtocolString 

func (p *IncomingPacket) WriteProtocolString(value string)

func (*IncomingPacket) WriteShort 

func (p *IncomingPacket) WriteShort(value int16)

func (*IncomingPacket) WriteUUID 

func (p *IncomingPacket) WriteUUID(value util.UUID)

type OutgoingPacket 

type OutgoingPacket struct {
	GarbageBuffer []byte
	// contains filtered or unexported fields
}

func NewOutgoingPacketFromSlice 

func NewOutgoingPacketFromSlice(buffer []byte) *OutgoingPacket

func NewOutgoingPacketFromSliceID 

func NewOutgoingPacketFromSliceID(buffer []byte, id packet.Clientbound, old_id int32) *OutgoingPacket

func (*OutgoingPacket) GetData 

func (p *OutgoingPacket) GetData(zlib_writer *zlib.Writer, compression int32) ([]byte, error)

func (*OutgoingPacket) ID 

func (p *OutgoingPacket) ID() packet.Clientbound

This returns the packets id. NOTE: Will not always be set. Will be Clientbound_None if not set.

func (*OutgoingPacket) OldID 

func (p *OutgoingPacket) OldID() int32

This returns the packets id. NOTE: Will not always be set. Will be -1 if not set.

func (*OutgoingPacket) SetVersion 

func (p *OutgoingPacket) SetVersion(v packet.Version)

Sets the packet's version. This slightly changes how certain values are written; see WritePosition and WriteItem.

func (*OutgoingPacket) WriteBool 

func (p *OutgoingPacket) WriteBool(v bool)

func (*OutgoingPacket) WriteByte 

func (p *OutgoingPacket) WriteByte(v byte)

func (*OutgoingPacket) WriteByteArray 

func (p *OutgoingPacket) WriteByteArray(v []byte)

func (*OutgoingPacket) WriteDouble 

func (p *OutgoingPacket) WriteDouble(v float64)

func (*OutgoingPacket) WriteFixedFloat 

func (p *OutgoingPacket) WriteFixedFloat(v float64)

This is a fixed point float. It takes the double, multiplies it by 32, and rounds it to an int. It then writes that int into the packet, encoded as an int (not varint). This is only used in 1.8, but in 1.8, it is used any time an entity position is reference.

func (*OutgoingPacket) WriteFloat 

func (p *OutgoingPacket) WriteFloat(v float32)

func (*OutgoingPacket) WriteInt 

func (p *OutgoingPacket) WriteInt(v int32)

func (*OutgoingPacket) WriteItem 

func (p *OutgoingPacket) WriteItem(value *pb.Item)

This writes a minecraft item. For versions 1.13.2 and up, it starts with a bool, for whether it exists. If it does exist, then it is followed byte the item id. That is followed by the number of items in the stack. That is then followed by an NBT tag, or a null byte if there is none. For versions 1.13 and 1.13.1, there is no bool. The item id is set to -1, and no data follows. Otherwise, it there is an item, the same data as above follows. For versions 1.12.2 and below, there is an extra field: right after the item count, there is a short, which is the item's data value.

func (*OutgoingPacket) WriteLong 

func (p *OutgoingPacket) WriteLong(v uint64)

func (*OutgoingPacket) WriteNullString 

func (p *OutgoingPacket) WriteNullString(v string)

func (*OutgoingPacket) WritePosition 

func (p *OutgoingPacket) WritePosition(v uint64)

This parses a postition from a grpc packet (always new format), and then writes the long back into the buffer, with either the new or old format.

func (*OutgoingPacket) WriteShort 

func (p *OutgoingPacket) WriteShort(v uint16)

func (*OutgoingPacket) WriteString 

func (p *OutgoingPacket) WriteString(v string)

func (*OutgoingPacket) WriteUUID 

func (p *OutgoingPacket) WriteUUID(v util.UUID)

func (*OutgoingPacket) WriteVarInt 

func (p *OutgoingPacket) WriteVarInt(v int32)

Source Files

View all Source files

Jump to

Keyboard shortcuts

? : This menu
/ : Search site
f or F : Jump to
y or Y : Canonical URL
go.dev uses cookies from Google to deliver and enhance the quality of its services and to analyze traffic. Learn more.