packet

package
v0.0.0-...-e8a13b5 Latest Latest
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This package is not in the latest version of its module.

 Go to latest Published: Jul 15, 2023 License: MIT Imports: 3 Imported by: 0

Documentation

Overview

Package packet is for TCP and UDP packets used in eX0 networking protocol.

Index

Constants

View Source 
const MAX_TCP_SIZE = 1448
View Source 
const MAX_UDP_SIZE = 1448
View Source 
const TCPHeaderSize = 3

TCPHeaderSize is the size in bytes of the TCP packet header.

View Source 
const UDPHeaderSize = 1

UDPHeaderSize is the size in bytes of the UDP packet header.

Variables

This section is empty.

Functions

This section is empty.

Types

type BroadcastTextMessage 

type BroadcastTextMessage struct {
	TCPHeader

	PlayerID uint8
	Message  []byte
}

func (*BroadcastTextMessage) MarshalBinary 

func (p *BroadcastTextMessage) MarshalBinary() ([]byte, error)

func (*BroadcastTextMessage) UnmarshalBinary 

func (p *BroadcastTextMessage) UnmarshalBinary(b []byte) error

type ClientCommand 

type ClientCommand struct {
	UDPHeader

	CommandSequenceNumber uint8 // Latest command sequence number (i.e., last one in the slice).
	CommandSeriesNumber   uint8
	MovesCount            uint8  // len(Moves) - 1.
	Moves                 []Move // Oldest first, newest last.
}

func (*ClientCommand) MarshalBinary 

func (p *ClientCommand) MarshalBinary() ([]byte, error)

func (*ClientCommand) UnmarshalBinary 

func (p *ClientCommand) UnmarshalBinary(b []byte) error

type CurrentPlayersInfo 

type CurrentPlayersInfo struct {
	TCPHeader

	Players []PlayerInfo
}

func (*CurrentPlayersInfo) MarshalBinary 

func (p *CurrentPlayersInfo) MarshalBinary() ([]byte, error)

func (*CurrentPlayersInfo) UnmarshalBinary 

func (p *CurrentPlayersInfo) UnmarshalBinary(b []byte, totalPlayerCount uint8) error

type EnterGamePermission 

type EnterGamePermission struct {
	TCPHeader
}

func (*EnterGamePermission) MarshalBinary 

func (p *EnterGamePermission) MarshalBinary() ([]byte, error)

func (*EnterGamePermission) UnmarshalBinary 

func (p *EnterGamePermission) UnmarshalBinary(b []byte) error

type EnteredGameNotification 

type EnteredGameNotification struct {
	TCPHeader
}

func (*EnteredGameNotification) MarshalBinary 

func (p *EnteredGameNotification) MarshalBinary() ([]byte, error)

func (*EnteredGameNotification) UnmarshalBinary 

func (p *EnteredGameNotification) UnmarshalBinary(b []byte) error

type Handshake 

type Handshake struct {
	UDPHeader

	Signature uint64
}

func (*Handshake) MarshalBinary 

func (p *Handshake) MarshalBinary() ([]byte, error)

func (*Handshake) UnmarshalBinary 

func (p *Handshake) UnmarshalBinary(b []byte) error

type JoinServerAccept 

type JoinServerAccept struct {
	TCPHeader

	YourPlayerID     uint8
	TotalPlayerCount uint8
}

func (*JoinServerAccept) MarshalBinary 

func (p *JoinServerAccept) MarshalBinary() ([]byte, error)

func (*JoinServerAccept) UnmarshalBinary 

func (p *JoinServerAccept) UnmarshalBinary(b []byte) error

type JoinServerRefuse 

type JoinServerRefuse struct {
	TCPHeader

	RefuseReason uint8
}

func (*JoinServerRefuse) MarshalBinary 

func (p *JoinServerRefuse) MarshalBinary() ([]byte, error)

func (*JoinServerRefuse) UnmarshalBinary 

func (p *JoinServerRefuse) UnmarshalBinary(b []byte) error

type JoinServerRequest 

type JoinServerRequest struct {
	TCPHeader

	Version    uint16
	Passphrase [16]byte
	Signature  uint64
}

func (*JoinServerRequest) MarshalBinary 

func (p *JoinServerRequest) MarshalBinary() ([]byte, error)

func (*JoinServerRequest) UnmarshalBinary 

func (p *JoinServerRequest) UnmarshalBinary(b []byte) error

type JoinTeamRequest 

type JoinTeamRequest struct {
	TCPHeader

	PlayerNumber *uint8 // If > 1 players per connection, player index within the connection.
	Team         Team
}

func (*JoinTeamRequest) MarshalBinary 

func (p *JoinTeamRequest) MarshalBinary() ([]byte, error)

func (*JoinTeamRequest) UnmarshalBinary 

func (p *JoinTeamRequest) UnmarshalBinary(b []byte) error

type LoadLevel 

type LoadLevel struct {
	TCPHeader

	LevelFilename []byte
}

func (*LoadLevel) MarshalBinary 

func (p *LoadLevel) MarshalBinary() ([]byte, error)

func (*LoadLevel) UnmarshalBinary 

func (p *LoadLevel) UnmarshalBinary(b []byte) error

type LocalPlayerInfo 

type LocalPlayerInfo struct {
	TCPHeader

	NameLength  uint8
	Name        []byte
	CommandRate uint8
	UpdateRate  uint8
}

func (*LocalPlayerInfo) MarshalBinary 

func (p *LocalPlayerInfo) MarshalBinary() ([]byte, error)

func (*LocalPlayerInfo) UnmarshalBinary 

func (p *LocalPlayerInfo) UnmarshalBinary(b []byte) error

type Move 

type Move struct {
	MoveDirection int8
	Stealth       uint8
	Z             float32
}

type Ping 

type Ping struct {
	UDPHeader

	PingData      uint32
	LastLatencies []uint16
}

func (*Ping) MarshalBinary 

func (p *Ping) MarshalBinary() ([]byte, error)

func (*Ping) UnmarshalBinary 

func (p *Ping) UnmarshalBinary(b []byte, totalPlayerCount uint8) error

type PlayerInfo 

type PlayerInfo struct {
	NameLength uint8
	Name       []byte // If NameLength > 0.
	Team       Team   // If NameLength > 0.
	State      *State // If NameLength > 0 && Team != 2.
}

type PlayerJoinedServer 

type PlayerJoinedServer struct {
	TCPHeader

	PlayerID   uint8
	NameLength uint8
	Name       []byte
}

func (*PlayerJoinedServer) MarshalBinary 

func (p *PlayerJoinedServer) MarshalBinary() ([]byte, error)

func (*PlayerJoinedServer) UnmarshalBinary 

func (p *PlayerJoinedServer) UnmarshalBinary(b []byte) error

type PlayerJoinedTeam 

type PlayerJoinedTeam struct {
	TCPHeader

	PlayerID uint8
	Team     Team
	State    *State // If Team != 2.
}

func (*PlayerJoinedTeam) MarshalBinary 

func (p *PlayerJoinedTeam) MarshalBinary() ([]byte, error)

func (*PlayerJoinedTeam) UnmarshalBinary 

func (p *PlayerJoinedTeam) UnmarshalBinary(b []byte) error

type PlayerLeftServer 

type PlayerLeftServer struct {
	TCPHeader

	PlayerID uint8
}

func (*PlayerLeftServer) MarshalBinary 

func (p *PlayerLeftServer) MarshalBinary() ([]byte, error)

func (*PlayerLeftServer) UnmarshalBinary 

func (p *PlayerLeftServer) UnmarshalBinary(b []byte) error

type PlayerUpdate 

type PlayerUpdate struct {
	ActivePlayer uint8
	State        *State // If ActivePlayer == true.
}

type PlayerWasHit 

type PlayerWasHit struct {
	TCPHeader

	PlayerID    uint8
	HealthGiven float32
}

func (*PlayerWasHit) MarshalBinary 

func (p *PlayerWasHit) MarshalBinary() ([]byte, error)

func (*PlayerWasHit) UnmarshalBinary 

func (p *PlayerWasHit) UnmarshalBinary(b []byte) error

type Pong 

type Pong struct {
	UDPHeader

	PingData uint32
}

func (*Pong) MarshalBinary 

func (p *Pong) MarshalBinary() ([]byte, error)

func (*Pong) UnmarshalBinary 

func (p *Pong) UnmarshalBinary(b []byte) error

type Pung 

type Pung struct {
	UDPHeader

	PingData uint32
	Time     float64
}

func (*Pung) MarshalBinary 

func (p *Pung) MarshalBinary() ([]byte, error)

func (*Pung) UnmarshalBinary 

func (p *Pung) UnmarshalBinary(b []byte) error

type SendTextMessage 

type SendTextMessage struct {
	TCPHeader

	Message []byte
}

func (*SendTextMessage) MarshalBinary 

func (p *SendTextMessage) MarshalBinary() ([]byte, error)

func (*SendTextMessage) UnmarshalBinary 

func (p *SendTextMessage) UnmarshalBinary(b []byte) error

type ServerUpdate 

type ServerUpdate struct {
	UDPHeader

	CurrentUpdateSequenceNumber uint8
	PlayerUpdates               []PlayerUpdate
}

func (*ServerUpdate) MarshalBinary 

func (p *ServerUpdate) MarshalBinary() ([]byte, error)

func (*ServerUpdate) UnmarshalBinary 

func (p *ServerUpdate) UnmarshalBinary(b []byte, totalPlayerCount uint8) error

type State 

type State struct {
	CommandSequenceNumber uint8
	X                     float32
	Y                     float32
	Z                     float32
}

type TCPHeader 

type TCPHeader struct {
	Length uint16
	Type   Type
}

func (*TCPHeader) UnmarshalBinary 

func (h *TCPHeader) UnmarshalBinary(b []byte) error

type Team 

type Team uint8
const (
	Red       Team = 0
	Blue      Team = 1
	Spectator Team = 2
)

func (Team) String 

func (t Team) String() string

type TimeRequest 

type TimeRequest struct {
	UDPHeader

	SequenceNumber uint8
}

func (*TimeRequest) MarshalBinary 

func (p *TimeRequest) MarshalBinary() ([]byte, error)

func (*TimeRequest) UnmarshalBinary 

func (p *TimeRequest) UnmarshalBinary(b []byte) error

type TimeResponse 

type TimeResponse struct {
	UDPHeader

	SequenceNumber uint8
	Time           float64
}

func (*TimeResponse) MarshalBinary 

func (p *TimeResponse) MarshalBinary() ([]byte, error)

func (*TimeResponse) UnmarshalBinary 

func (p *TimeResponse) UnmarshalBinary(b []byte) error

type Type 

type Type uint8
const (
	// TCP packet types.
	JoinServerRequestType        Type = 1
	JoinServerAcceptType         Type = 2
	JoinServerRefuseType         Type = 3
	UDPConnectionEstablishedType Type = 5
	EnterGamePermissionType      Type = 6
	EnteredGameNotificationType  Type = 7
	SendTextMessageType          Type = 10
	BroadcastTextMessageType     Type = 11
	LoadLevelType                Type = 20
	CurrentPlayersInfoType       Type = 21
	PlayerJoinedServerType       Type = 25
	PlayerLeftServerType         Type = 26
	JoinTeamRequestType          Type = 27
	PlayerJoinedTeamType         Type = 28
	LocalPlayerInfoType          Type = 30
	PlayerWasHitType             Type = 40

	// UDP packet types.
	ClientCommandType Type = 1
	ServerUpdateType  Type = 2
	WeaponCommandType Type = 3
	WeaponActionType  Type = 4
	PingType          Type = 10
	PongType          Type = 11
	PungType          Type = 12
	HandshakeType     Type = 100
	TimeRequestType   Type = 105
	TimeResponseType  Type = 106
)

func (Type) String 

func (i Type) String() string

type UDPConnectionEstablished 

type UDPConnectionEstablished struct {
	TCPHeader
}

func (*UDPConnectionEstablished) MarshalBinary 

func (p *UDPConnectionEstablished) MarshalBinary() ([]byte, error)

func (*UDPConnectionEstablished) UnmarshalBinary 

func (p *UDPConnectionEstablished) UnmarshalBinary(b []byte) error

type UDPHeader 

type UDPHeader struct {
	Type Type
}

func (*UDPHeader) UnmarshalBinary 

func (h *UDPHeader) UnmarshalBinary(b []byte) error

type WeaponAction 

type WeaponAction struct {
	UDPHeader

	PlayerID     uint8
	Action       WeaponState
	Time         float64
	Z            float32 // If Action is WeaponSystem::FIRE.
	WeaponNumber uint8   // If Action is WeaponSystem::CHANGE_WEAPON.
}

func (*WeaponAction) MarshalBinary 

func (p *WeaponAction) MarshalBinary() ([]byte, error)

func (*WeaponAction) UnmarshalBinary 

func (p *WeaponAction) UnmarshalBinary(b []byte) error

type WeaponCommand 

type WeaponCommand struct {
	UDPHeader

	Action       WeaponState
	Time         float64
	Z            float32 // If Action is WeaponSystem::FIRE.
	WeaponNumber uint8   // If Action is WeaponSystem::CHANGE_WEAPON.
}

func (*WeaponCommand) MarshalBinary 

func (p *WeaponCommand) MarshalBinary() ([]byte, error)

func (*WeaponCommand) UnmarshalBinary 

func (p *WeaponCommand) UnmarshalBinary(b []byte) error

type WeaponState 

type WeaponState uint8
const (
	Idle         WeaponState = 0
	Fire         WeaponState = 1
	Reload       WeaponState = 2
	ChangeWeapon WeaponState = 3
)

Source Files

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