protocol

package
v1.12.2-0...-57c7a7a Latest Latest
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 Go to latest Published: May 25, 2021 License: MIT Imports: 13 Imported by: 0

Documentation

Overview

Package protocol implements structures and functions used to write or read data related to the Minecraft Bedrock Edition protocol. The functions present in this package are generally used in the minecraft/protocol/packet library, where the encoding and decoding of packets may be found.

Index

Constants

View Source 
const (
	CommandArgValid    = 0x100000
	CommandArgEnum     = 0x200000
	CommandArgSuffixed = 0x1000000
	CommandArgSoftEnum = 0x4000000

	CommandArgTypeInt            = 1
	CommandArgTypeFloat          = 3
	CommandArgTypeValue          = 4
	CommandArgTypeWildcardInt    = 5
	CommandArgTypeOperator       = 6
	CommandArgTypeTarget         = 7
	CommandArgTypeWildcardTarget = 8
	CommandArgTypeFilepath       = 16
	CommandArgTypeString         = 32
	CommandArgTypePosition       = 40
	CommandArgTypeMessage        = 44
	CommandArgTypeRawText        = 46
	CommandArgTypeJSON           = 50
	CommandArgTypeCommand        = 63
)
View Source 
const (
	// ParamOptionCollapseEnum specifies if the enum (only if the Type is actually an enum type. If not,
	// setting this to true has no effect) should be collapsed. This means that the options of the enum are
	// never shown in the actual usage of the command, but only as auto-completion, like it automatically does
	// with enums that have a big amount of options. To illustrate, it can make
	// <false|true|yes|no> <$Name: bool>.
	ParamOptionCollapseEnum = iota + 1
	ParamOptionHasSemanticConstraint
)
View Source 
const (
	CommandOriginPlayer = iota
	CommandOriginBlock
	CommandOriginMinecartBlock
	CommandOriginDevConsole
	CommandOriginTest
	CommandOriginAutomationPlayer
	CommandOriginClientAutomation
	CommandOriginDedicatedServer
	CommandOriginEntity
	CommandOriginVirtual
	CommandOriginGameArgument
	CommandOriginEntityServer
	CommandOriginPrecompiled
	CommandOriginGameDirectorEntityServer
	CommandOriginScript
)
View Source 
const (
	CommandEnumConstraintCheatsEnabled = iota
	CommandEnumConstraintOperatorPermissions
	CommandEnumConstraintHostPermissions
)
View Source 
const (
	// EntityLinkRemove is set to remove the link between two entities.
	EntityLinkRemove = iota
	// EntityLinkRider is set for entities that have control over the entity they're riding, such as in a
	// minecart.
	EntityLinkRider
	// EntityLinkPassenger is set for entities being a passenger of a vehicle they enter, such as the back
	// sit of a boat.
	EntityLinkPassenger
)
View Source 
const (
	EntityDataByte uint32 = iota
	EntityDataInt16
	EntityDataInt32
	EntityDataFloat32
	EntityDataString
	EntityDataCompoundTag
	EntityDataBlockPos
	EntityDataInt64
	EntityDataVec3
)
View Source 
const (
	// CurrentProtocol is the current protocol version for the version below.
	CurrentProtocol = 431
	// CurrentVersion is the current version of Minecraft as supported by the `packet` package.
	CurrentVersion = "1.16.220"
	// CurrentBlockVersion is the current version of blocks (states) of the game. This version is composed
	// of 4 bytes indicating a version, interpreted as a big endian int. The current version represents
	// 1.16.0.14 {1, 16, 0, 14}.
	CurrentBlockVersion int32 = 17825806
)
View Source 
const (
	InventoryActionSourceContainer = 0
	InventoryActionSourceWorld     = 2
	InventoryActionSourceCreative  = 3
	InventoryActionSourceTODO      = 99999
)
View Source 
const (
	WindowIDInventory = 0
	WindowIDOffHand   = 119
	WindowIDArmour    = 120
	WindowIDUI        = 124
)
View Source 
const (
	UseItemActionClickBlock = iota
	UseItemActionClickAir
	UseItemActionBreakBlock
)
View Source 
const (
	UseItemOnEntityActionInteract = iota
	UseItemOnEntityActionAttack
)
View Source 
const (
	ReleaseItemActionRelease = iota
	ReleaseItemActionConsume
)
View Source 
const (
	ItemStackResponseStatusOK = iota
	ItemStackResponseStatusError
)
View Source 
const (
	StackRequestActionTake = iota
	StackRequestActionPlace
	StackRequestActionSwap
	StackRequestActionDrop
	StackRequestActionDestroy
	StackRequestActionConsume
	StackRequestActionCreate
	StackRequestActionLabTableCombine
	StackRequestActionBeaconPayment
	StackRequestActionMineBlock
	StackRequestActionCraftRecipe
	StackRequestActionCraftRecipeAuto
	StackRequestActionCraftCreative
	StackRequestActionCraftRecipeOptional
	StackRequestActionCraftNonImplementedDeprecated
	StackRequestActionCraftResultsDeprecated
)
View Source 
const (
	MapObjectTypeEntity = iota
	MapObjectTypeBlock
)
View Source 
const (
	PlayerActionStartBreak = iota
	PlayerActionAbortBreak
	PlayerActionStopBreak
	PlayerActionGetUpdatedBlock
	PlayerActionDropItem
	PlayerActionStartSleeping
	PlayerActionStopSleeping
	PlayerActionRespawn
	PlayerActionJump
	PlayerActionStartSprint
	PlayerActionStopSprint
	PlayerActionStartSneak
	PlayerActionStopSneak
	PlayerActionCreativePlayerDestroyBlock
	PlayerActionDimensionChangeDone
	PlayerActionStartGlide
	PlayerActionStopGlide
	PlayerActionBuildDenied
	PlayerActionCrackBreak
	PlayerActionChangeSkin
	PlayerActionSetEnchantmentSeed
	PlayerActionStartSwimming
	PlayerActionStopSwimming
	PlayerActionStartSpinAttack
	PlayerActionStopSpinAttack
	PlayerActionStartBuildingBlock
	PlayerActionPredictDestroyBlock
	PlayerActionContinueDestroyBlock
)
View Source 
const (
	PlayerMovementModeClient = iota
	PlayerMovementModeServer
	PlayerMovementModeServerWithRewind
)
View Source 
const (
	RecipeShapeless int32 = iota
	RecipeShaped
	RecipeFurnace
	RecipeFurnaceData
	RecipeMulti
	RecipeShulkerBox
	RecipeShapelessChemistry
	RecipeShapedChemistry
)
View Source 
const (
	ScoreboardIdentityPlayer = iota + 1
	ScoreboardIdentityEntity
	ScoreboardIdentityFakePlayer
)
View Source 
const (
	SkinAnimationHead = iota + 1
	SkinAnimationBody32x32
	SkinAnimationBody128x128

	ExpressionTypeLinear = iota
	ExpressionTypeBlinking
)
View Source 
const (
	StructureMirrorNone = iota
	StructureMirrorXAxis
	StructureMirrorZAxis
	StructureMirrorBothAxes
)
View Source 
const (
	StructureRotationNone = iota
	StructureRotationRotate90
	StructureRotationRotate180
	StructureRotationRotate270
)

Variables

This section is empty.

Functions

func Animation 

func Animation(r IO, x *SkinAnimation)

Animation reads/writes a SkinAnimation x using IO r.

func Attributes 

func Attributes(r *Reader, x *[]Attribute)

Attributes reads an Attribute slice x from Reader r.

func BehaviourPackInformation 

func BehaviourPackInformation(r IO, x *BehaviourPackInfo)

BehaviourPackInformation reads/writes a BehaviourPackInfo x using IO r.

func Blob 

func Blob(r IO, x *CacheBlob)

Blob reads/writes a CacheBlob x using IO r.

func Block 

func Block(r IO, x *BlockEntry)

Block reads a BlockEntry x from IO r.

func BlockAction 

func BlockAction(r IO, x *PlayerBlockAction)

BlockAction reads/writes a PlayerBlockAction x to/from IO r.

func CommandData 

func CommandData(r *Reader, x *Command, enums []CommandEnum, suffixes []string)

CommandData reads a Command x from Buffer src using the enums and suffixes passed to match indices with the values these slices hold.

func CommandMessage 

func CommandMessage(r *Reader, x *CommandOutputMessage)

CommandMessage reads a CommandOutputMessage x from Reader r.

func CommandOriginData 

func CommandOriginData(r IO, x *CommandOrigin)

CommandOriginData reads/writes a CommandOrigin x using IO r.

func CommandParam 

func CommandParam(r *Reader, x *CommandParameter, enums []CommandEnum, suffixes []string)

CommandParam reads a CommandParam x from Buffer src using the enums and suffixes passed to translate offsets to their respective values. CommandParam does not handle soft/dynamic enums. The caller is responsible to do this itself.

func CreativeEntry 

func CreativeEntry(r IO, x *CreativeItem)

CreativeEntry reads/writes a CreativeItem x using IO r.

func Enchant 

func Enchant(r IO, x *EnchantmentInstance)

Enchant reads/writes an EnchantmentInstance x using IO r.

func EnchantOption 

func EnchantOption(r *Reader, x *EnchantmentOption)

EnchantOption reads an EnchantmentOption x from Reader r.

func EntityLinkAction 

func EntityLinkAction(r IO, x *EntityLink)

EntityLinkAction reads/writes a single entity link (action) using IO r. 

func EntityLinks(r *Reader, x *[]EntityLink)

EntityLinks reads a list of entity links from Reader r that are currently active.

func EnumConstraint 

func EnumConstraint(r *Reader, x *CommandEnumConstraint, enums []CommandEnum, enumValues []string)

EnumConstraint reads a CommandEnumConstraint x from Buffer src using the enums and enum values passed.

func Experiment 

func Experiment(r IO, x *ExperimentData)

Experiment reads an ExperimentData x from IO r.

func GameRules 

func GameRules(r *Reader, x *map[string]interface{})

GameRules reads a map of game rules from Reader r. It sets one of the types 'bool', 'float32' or 'uint32' to the map x, with the key being the name of the game rule.

func InitialAttributes 

func InitialAttributes(r *Reader, x *[]Attribute)

InitialAttributes reads an Attribute slice from bytes.Buffer src and stores it in the pointer passed. InitialAttributes is used when reading the attributes of a new entity. (AddEntity packet)

func InvAction 

func InvAction(r IO, x *InventoryAction)

InvAction reads/writes an InventoryAction x using IO r.

func Item 

func Item(r IO, x *ItemEntry)

Item reads/writes an ItemEntry x using IO r.

func ItemComponents 

func ItemComponents(r IO, x *ItemComponentEntry)

ItemComponents reads/writes an ItemComponentEntry x using IO r.

func ItemEnchants 

func ItemEnchants(r *Reader, x *ItemEnchantments)

ItemEnchants reads an ItemEnchantments x from Reader r.

func MapDeco 

func MapDeco(r IO, x *MapDecoration)

MapDeco reads/writes a MapDecoration x using IO r.

func MapTrackedObj 

func MapTrackedObj(r IO, x *MapTrackedObject)

MapTrackedObj reads/writes a MapTrackedObject x using IO r.

func PlayerAddEntry 

func PlayerAddEntry(r *Reader, x *PlayerListEntry)

PlayerAddEntry reads a PlayerListEntry x from Reader r in a way that adds a player to the list.

func PlayerInventoryAction 

func PlayerInventoryAction(r IO, x *UseItemTransactionData)

PlayerInventoryAction reads/writes a PlayerInventoryAction x to/from IO r.

func PlayerMoveSettings 

func PlayerMoveSettings(r IO, x *PlayerMovementSettings)

PlayerMoveSettings reads/writes PlayerMovementSettings x to/from IO r.

func PotContainerChangeRecipe 

func PotContainerChangeRecipe(r IO, x *PotionContainerChangeRecipe)

PotContainerChangeRecipe reads/writes a PotionContainerChangeRecipe x using IO r.

func PotRecipe 

func PotRecipe(r IO, x *PotionRecipe)

PotRecipe reads/writes a PotionRecipe x using IO r.

func RecipeIngredient 

func RecipeIngredient(r IO, x *RecipeIngredientItem)

RecipeIngredient reads/writes a RecipeIngredientItem x using IO r.

func ScoreEntry 

func ScoreEntry(r IO, x *ScoreboardEntry, modify bool)

ScoreEntry reads/writes a ScoreboardEntry x using IO r. It reads the display information if modify is true, as expected when the SetScore packet is sent to modify entries.

func SerialisedSkin 

func SerialisedSkin(r *Reader, x *Skin)

SerialisedSkin reads a Skin x from Reader r.

func SetItemSlot 

func SetItemSlot(r IO, x *LegacySetItemSlot)

SetItemSlot reads/writes a LegacySetItemSlot x using IO r.

func SkinPiece 

func SkinPiece(r IO, x *PersonaPiece)

SkinPiece reads/writes a PersonaPiece x using IO r.

func SkinPieceTint 

func SkinPieceTint(r *Reader, x *PersonaPieceTintColour)

SkinPieceTint reads a PersonaPieceTintColour x from Reader r.

func StackContainerInfo 

func StackContainerInfo(r *Reader, x *StackResponseContainerInfo)

StackContainerInfo reads a StackResponseContainerInfo x from Reader r.

func StackPack 

func StackPack(r IO, x *StackResourcePack)

StackPack reads/writes a StackResourcePack x using IO r.

func StackReqSlotInfo 

func StackReqSlotInfo(r IO, x *StackRequestSlotInfo)

StackReqSlotInfo reads/writes a StackRequestSlotInfo x using IO r.

func StackRequest 

func StackRequest(r *Reader, x *ItemStackRequest)

StackRequest reads an ItemStackRequest x from Reader r.

func StackResponse 

func StackResponse(r *Reader, x *ItemStackResponse)

StackResponse reads an ItemStackResponse x from Reader r.

func StackSlotInfo 

func StackSlotInfo(r IO, x *StackResponseSlotInfo)

StackSlotInfo reads/writes a StackResponseSlotInfo x using IO r.

func StructSettings 

func StructSettings(r IO, x *StructureSettings)

StructSettings reads/writes StructureSettings x using IO r.

func TexturePackInformation 

func TexturePackInformation(r IO, x *TexturePackInfo)

TexturePackInformation reads/writes a TexturePackInfo x using IO r.

func Varint32 

func Varint32(src io.ByteReader, x *int32) error

Varint32 reads up to 5 bytes from the source buffer passed and sets the integer produced to a pointer.

func Varint64 

func Varint64(src io.ByteReader, x *int64) error

Varint64 reads up to 10 bytes from the source buffer passed and sets the integer produced to a pointer.

func Varuint32 

func Varuint32(src io.ByteReader, x *uint32) error

Varuint32 reads up to 5 bytes from the source buffer passed and sets the integer produced to a pointer.

func Varuint64 

func Varuint64(src io.ByteReader, x *uint64) error

Varuint64 reads up to 10 bytes from the source buffer passed and sets the integer produced to a pointer.

func WriteAttributes 

func WriteAttributes(w *Writer, x *[]Attribute)

WriteAttributes writes a slice of Attributes x to Writer w.

func WriteCommandData 

func WriteCommandData(w *Writer, x *Command, enumIndices map[string]int, suffixIndices map[string]int, dynamicEnumIndices map[string]int)

WriteCommandData writes a Command x to Writer w, using the enum indices and suffix indices passed to translate enums and suffixes to the indices that they're written in in the buffer.

func WriteCommandMessage 

func WriteCommandMessage(w *Writer, x *CommandOutputMessage)

WriteCommandMessage writes a CommandOutputMessage x to Writer w.

func WriteCommandParam 

func WriteCommandParam(w *Writer, x *CommandParameter, enumIndices map[string]int, suffixIndices map[string]int, dynamicEnumIndices map[string]int)

WriteCommandParam writes a CommandParameter x to Writer w, using the enum indices and suffix indices to translate the respective values to the offset in the buffer.

func WriteEnchantOption 

func WriteEnchantOption(w *Writer, x *EnchantmentOption)

WriteEnchantOption writes an EnchantmentOption x to Writer w. 

func WriteEntityLinks(w *Writer, x *[]EntityLink)

WriteEntityLinks writes a list of entity links currently active to Writer w.

func WriteEnumConstraint 

func WriteEnumConstraint(w *Writer, x *CommandEnumConstraint, enumIndices map[string]int, enumValueIndices map[string]int)

WriteEnumConstraint writes a CommandEnumConstraint x to Writer w using the enum (value) indices passed.

func WriteGameRules 

func WriteGameRules(w *Writer, x *map[string]interface{})

WriteGameRules writes a map of game rules x, indexed by their names to Writer w. The types of the map values must be either 'bool', 'float32' or 'uint32'. If one of the values has a different type, the function will panic.

func WriteInitialAttributes 

func WriteInitialAttributes(w *Writer, x *[]Attribute)

WriteInitialAttributes writes a slice of Attributes x to Writer w. WriteInitialAttributes is used when writing the attributes of a new entity. (AddEntity packet)

func WriteItemEnchants 

func WriteItemEnchants(w *Writer, x *ItemEnchantments)

WriteItemEnchants writes an ItemEnchantments x to Writer w..

func WritePlayerAddEntry 

func WritePlayerAddEntry(w *Writer, x *PlayerListEntry)

WritePlayerAddEntry writes a PlayerListEntry x to Writer w in a way that adds the player to the list.

func WriteSerialisedSkin 

func WriteSerialisedSkin(w *Writer, x *Skin)

WriteSerialisedSkin writes a Skin x to Writer w. WriteSerialisedSkin panics if the fields of the skin have invalid values, usually indicating that the dimensions of the skin images are incorrect.

func WriteSkinPieceTint 

func WriteSkinPieceTint(w *Writer, x *PersonaPieceTintColour)

WriteSkinPieceTint writes a PersonaPieceTintColour x to Writer w.

func WriteStackContainerInfo 

func WriteStackContainerInfo(w *Writer, x *StackResponseContainerInfo)

WriteStackContainerInfo writes a StackResponseContainerInfo x to Writer w.

func WriteStackRequest 

func WriteStackRequest(w *Writer, x *ItemStackRequest)

WriteStackRequest writes an ItemStackRequest x to Writer w.

func WriteStackResponse 

func WriteStackResponse(w *Writer, x *ItemStackResponse)

WriteStackResponse writes an ItemStackResponse x to Writer w.

func WriteVarint32 

func WriteVarint32(dst io.ByteWriter, x int32) error

WriteVarint32 writes an int32 to the destination buffer passed with a size of 1-5 bytes.

func WriteVarint64 

func WriteVarint64(dst io.ByteWriter, x int64) error

WriteVarint64 writes an int64 to the destination buffer passed with a size of 1-10 bytes.

func WriteVaruint32 

func WriteVaruint32(dst io.ByteWriter, x uint32) error

WriteVaruint32 writes a uint32 to the destination buffer passed with a size of 1-5 bytes.

func WriteVaruint64 

func WriteVaruint64(dst io.ByteWriter, x uint64) error

WriteVaruint64 writes a uint64 to the destination buffer passed with a size of 1-10 bytes.

Types

type Attribute 

type Attribute struct {
	// Name is the name of the attribute, for example 'minecraft:health'. These names must be identical to
	// the ones defined client-side.
	Name string
	// Value is the current value of the attribute. This value will be applied to the entity when sent in a
	// packet.
	Value float32
	// Max and Min specify the boundaries within the value of the attribute must be. The definition of these
	// fields differ per attribute. The maximum health of an entity may be changed, whereas the maximum
	// movement speed for example may not be.
	Max, Min float32
	// Default is the default value of the attribute. It's not clear why this field must be sent to the
	// client, but it is required regardless.
	Default float32
}

Attribute is an entity attribute, that holds specific data such as the health of the entity. Each attribute holds a default value, maximum and minimum value, name and its current value.

type AutoCraftRecipeStackRequestAction 

type AutoCraftRecipeStackRequestAction struct {
	CraftRecipeStackRequestAction
}

AutoCraftRecipeStackRequestAction is sent by the client similarly to the CraftRecipeStackRequestAction. The only difference is that the recipe is automatically created and crafted by shift clicking the recipe book.

type BeaconPaymentStackRequestAction 

type BeaconPaymentStackRequestAction struct {
	// PrimaryEffect and SecondaryEffect are the effects that were selected from the beacon.
	PrimaryEffect, SecondaryEffect int32
}

BeaconPaymentStackRequestAction is sent by the client when it submits an item to enable effects from a beacon. These items will have been moved into the beacon item slot in advance.

func (*BeaconPaymentStackRequestAction) Marshal 

func (a *BeaconPaymentStackRequestAction) Marshal(w *Writer)

Marshal ...

func (*BeaconPaymentStackRequestAction) Unmarshal 

func (a *BeaconPaymentStackRequestAction) Unmarshal(r *Reader)

Unmarshal ...

type BehaviourPackInfo 

type BehaviourPackInfo struct {
	// UUID is the UUID of the behaviour pack. Each behaviour pack downloaded must have a different UUID in
	// order for the client to be able to handle them properly.
	UUID string
	// Version is the version of the behaviour pack. The client will cache behaviour packs sent by the server as
	// long as they carry the same version. Sending a behaviour pack with a different version than previously
	// will force the client to re-download it.
	Version string
	// Size is the total size in bytes that the behaviour pack occupies. This is the size of the compressed
	// archive (zip) of the behaviour pack.
	Size uint64
	// ContentKey is the key used to decrypt the behaviour pack if it is encrypted. This is generally the case
	// for marketplace behaviour packs.
	ContentKey string
	// SubPackName ...
	SubPackName string
	// ContentIdentity ...
	ContentIdentity string
	// HasScripts specifies if the behaviour packs has any scripts in it. A client will only download the
	// behaviour pack if it supports scripts, which, up to 1.11, only includes Windows 10.
	HasScripts bool
}

BehaviourPackInfo represents a behaviour pack's info sent over network. It holds information about the behaviour pack such as its name, description and version.

type BlockEntry 

type BlockEntry struct {
	// Name is the name of the custom block.
	Name string
	// Properties is a list of properties which, in combination with the name, specify a unique block.
	Properties map[string]interface{}
}

BlockEntry is an entry for a custom block found in the StartGame packet. The runtime ID of these custom block entries is based on the index they have in the block palette when the palette is ordered alphabetically.

type BlockPos 

type BlockPos [3]int32

BlockPos is the position of a block. It is composed of three integers, and is typically written as either 3 varint32s or a varint32, varuint32 and varint32.

func (BlockPos) X 

func (pos BlockPos) X() int32

X returns the X coordinate of the block position. It is equivalent to BlockPos[0].

func (BlockPos) Y 

func (pos BlockPos) Y() int32

Y returns the Y coordinate of the block position. It is equivalent to BlockPos[1].

func (BlockPos) Z 

func (pos BlockPos) Z() int32

Z returns the Z coordinate of the block position. It is equivalent to BlockPos[2].

type CacheBlob 

type CacheBlob struct {
	// Hash is the hash of the blob. The hash is computed using xxHash, and must be deterministic for the same
	// chunk data.
	Hash uint64
	// Payload is the data of the blob. When sent, the client will associate the Hash of the blob with the
	// Payload in it.
	Payload []byte
}

CacheBlob represents a blob as used in the client side blob cache protocol. It holds a hash of its data and the full data of it.

type Command 

type Command struct {
	// Name is the name of the command. The command may be executed using this name, and will be shown in the
	// /help list with it. It currently seems that the client crashes if the Name contains uppercase letters.
	Name string
	// Description is the description of the command. It is shown in the /help list and when starting to write
	// a command.
	Description string
	// Flags is a combination of flags not currently known. Leaving the Flags field empty appears to work.
	Flags byte
	// PermissionLevel is the command permission level that the player required to execute this command. The
	// field no longer seems to serve a purpose, as the client does not handle the execution of commands
	// anymore: The permissions should be checked server-side.
	PermissionLevel byte
	// Aliases is a list of aliases of the command name, that may alternatively be used to execute the command
	// in the same way.
	Aliases []string
	// Overloads is a list of command overloads that specify the ways in which a command may be executed. The
	// overloads may be completely different.
	Overloads []CommandOverload
}

Command holds the data that a command requires to be shown to a player client-side. The command is shown in the /help command and auto-completed using this data.

type CommandEnum 

type CommandEnum struct {
	// Type is the type of the command enum. The type will show up in the command usage as the type of the
	// argument if it has a certain amount of arguments, or when Options is set to true in the
	// command holding the enum.
	Type string
	// Options is a list of options that are valid for the client to submit to the command. They will be able
	// to be auto-completed and show up as options client-side.
	Options []string
	// Dynamic specifies if the command enum is considered dynamic. If set to true, it is written differently
	// and may be updated during runtime as a result using the UpdateSoftEnum packet.
	Dynamic bool
}

CommandEnum represents an enum in a command usage. The enum typically has a type and a set of options that are valid. A value that is not one of the options results in a failure during execution.

type CommandEnumConstraint 

type CommandEnumConstraint struct {
	// EnumOption is the option in an enum that the constraints should be applied to.
	EnumOption string
	// EnumName is the name of the enum of which the EnumOption above should be constrained.
	EnumName string
	// Constraints is a list of constraints that should be applied to the enum option. It is one of the values
	// found above.
	Constraints []byte
}

CommandEnumConstraint is sent in the AvailableCommands packet to limit what values of an enum may be used taking in account things such as whether cheats are enabled.

type CommandOrigin 

type CommandOrigin struct {
	// Origin is one of the values above that specifies the origin of the command. The origin may change,
	// depending on what part of the client actually called the command. The command may be issued by a
	// websocket server, for example.
	Origin uint32
	// UUID is the UUID of the command called. This UUID is a bit odd as it is not specified by the server. It
	// is not clear what exactly this UUID is meant to identify, but it is unique for each command called.
	UUID uuid.UUID
	// RequestID is an ID that identifies the request of the client. The server should send a CommandOrigin
	// with the same request ID to ensure it can be matched with the request by the caller of the command.
	// This is especially important for websocket servers and it seems that this field is only non-empty for
	// these websocket servers.
	RequestID string
	// PlayerUniqueID is an ID that identifies the player, the same as the one found in the AdventureSettings
	// packet. Filling it out with 0 seems to work.
	// PlayerUniqueID is only written if Origin is CommandOriginDevConsole or CommandOriginTest.
	PlayerUniqueID int64
}

CommandOrigin holds data that identifies the origin of the requesting of a command. It holds several fields that may be used to get specific information. When sent in a CommandRequest packet, the same CommandOrigin should be sent in a CommandOutput packet.

type CommandOutputMessage 

type CommandOutputMessage struct {
	// Success indicates if the output message was one of a successful command execution. If set to true, the
	// output message is by default coloured white, whereas if set to false, the message is by default
	// coloured red.
	Success bool
	// Message is the message that is sent to the client in the chat window. It may either be simply a
	// message or a translated built-in string like 'commands.tp.success.coordinates', combined with specific
	// parameters below.
	Message string
	// Parameters is a list of parameters that serve to supply the message sent with additional information,
	// such as the position that a player was teleported to or the effect that was applied to an entity.
	// These parameters only apply for the Minecraft built-in command output.
	Parameters []string
}

CommandOutputMessage represents a message sent by a command that holds the output of one of the commands executed.

type CommandOverload 

type CommandOverload struct {
	// Parameters is a list of command parameters that are part of the overload. These parameters specify the
	// usage of the command when this overload is applied.
	Parameters []CommandParameter
}

CommandOverload represents an overload of a command. This overload can be compared to function overloading in languages such as java. It represents a single usage of the command. A command may have multiple different overloads, which are handled differently.

type CommandParameter 

type CommandParameter struct {
	// Name is the name of the command parameter. It shows up in the usage like <$Name: $Type>, with the
	// exception of enum types, which show up simply as a list of options if the list is short enough and
	// Options is set to false.
	Name string
	// Type is a rather odd combination of type(flag)s that result in a certain parameter type to show up
	// client-side. It is a combination of the flags above. The basic types must be combined with the
	// ArgumentTypeFlagBasic flag (and integers with a suffix ArgumentTypeFlagSuffixed), whereas enums are
	// combined with the ArgumentTypeFlagEnum flag.
	Type uint32
	// Optional specifies if the command parameter is optional to enter. Note that no non-optional parameter
	// should ever be present in a command overload after an optional parameter. When optional, the parameter
	// shows up like so: [$Name: $Type], whereas when mandatory, it shows up like so: <$Name: $Type>.
	Optional bool
	// Options holds a combinations of options that additionally apply to the command parameter. The list of
	// options can be found above.
	Options byte

	// Enum is the enum of the parameter if it should be of the type enum. If non-empty, the parameter will
	// be treated as an enum and show up as such client-side.
	Enum CommandEnum
	// Suffix is the suffix of the parameter if it should receive one. Note that only integer argument types
	// are able to receive a suffix, and so the type, if Suffix is a non-empty string, will always be an
	// integer.
	Suffix string
}

CommandParameter represents a single parameter of a command overload, which accepts a certain type of input values. It has a name and a type which show up client-side when a player is entering the command.

type ConsumeStackRequestAction 

type ConsumeStackRequestAction struct {
	DestroyStackRequestAction
}

ConsumeStackRequestAction is sent by the client when it uses an item to craft another item. The original item is 'consumed'.

type CraftCreativeStackRequestAction 

type CraftCreativeStackRequestAction struct {
	// CreativeItemNetworkID is the network ID of the creative item that is being created. This is one of the
	// creative item network IDs sent in the CreativeContent packet.
	CreativeItemNetworkID uint32
}

CraftCreativeStackRequestAction is sent by the client when it takes an item out fo the creative inventory. The item is thus not really crafted, but instantly created.

func (*CraftCreativeStackRequestAction) Marshal 

func (a *CraftCreativeStackRequestAction) Marshal(w *Writer)

Marshal ...

func (*CraftCreativeStackRequestAction) Unmarshal 

func (a *CraftCreativeStackRequestAction) Unmarshal(r *Reader)

Unmarshal ...

type CraftNonImplementedStackRequestAction 

type CraftNonImplementedStackRequestAction struct{}

CraftNonImplementedStackRequestAction is an action sent for inventory actions that aren't yet implemented in the new system. These include, for example, anvils.

func (*CraftNonImplementedStackRequestAction) Marshal 

func (*CraftNonImplementedStackRequestAction) Marshal(*Writer)

Marshal ...

func (*CraftNonImplementedStackRequestAction) Unmarshal 

func (*CraftNonImplementedStackRequestAction) Unmarshal(*Reader)

Unmarshal ...

type CraftRecipeOptionalStackRequestAction 

type CraftRecipeOptionalStackRequestAction struct {
	// UnknownBytes currently has an unknown usage. It seems to always be 5 zero bytes when using an anvil.
	UnknownBytes [5]byte
}

CraftRecipeOptionalStackRequestAction is sent when using an anvil. When this action is sent, the CustomNames field in the respective stack request is non-empty and contains the name of the item created using the anvil.

func (*CraftRecipeOptionalStackRequestAction) Marshal 

func (c *CraftRecipeOptionalStackRequestAction) Marshal(w *Writer)

Marshal ...

func (*CraftRecipeOptionalStackRequestAction) Unmarshal 

func (c *CraftRecipeOptionalStackRequestAction) Unmarshal(r *Reader)

Unmarshal ...

type CraftRecipeStackRequestAction 

type CraftRecipeStackRequestAction struct {
	// RecipeNetworkID is the network ID of the recipe that is about to be crafted. This network ID matches
	// one of the recipes sent in the CraftingData packet, where each of the recipes have a RecipeNetworkID as
	// of 1.16.
	RecipeNetworkID uint32
}

CraftRecipeStackRequestAction is sent by the client the moment it begins crafting an item. This is the first action sent, before the Consume and Create item stack request actions. This action is also sent when an item is enchanted. Enchanting should be treated mostly the same way as crafting, where the old item is consumed.

func (*CraftRecipeStackRequestAction) Marshal 

func (a *CraftRecipeStackRequestAction) Marshal(w *Writer)

Marshal ...

func (*CraftRecipeStackRequestAction) Unmarshal 

func (a *CraftRecipeStackRequestAction) Unmarshal(r *Reader)

Unmarshal ...

type CraftResultsDeprecatedStackRequestAction 

type CraftResultsDeprecatedStackRequestAction struct {
	ResultItems  []ItemStack
	TimesCrafted byte
}

CraftResultsDeprecatedStackRequestAction is an additional, deprecated packet sent by the client after crafting. It holds the final results and the amount of times the recipe was crafted. It shouldn't be used. This action is also sent when an item is enchanted. Enchanting should be treated mostly the same way as crafting, where the old item is consumed.

func (*CraftResultsDeprecatedStackRequestAction) Marshal 

func (a *CraftResultsDeprecatedStackRequestAction) Marshal(w *Writer)

Marshal ...

func (*CraftResultsDeprecatedStackRequestAction) Unmarshal 

func (a *CraftResultsDeprecatedStackRequestAction) Unmarshal(r *Reader)

Unmarshal ...

type CreateStackRequestAction 

type CreateStackRequestAction struct {
	// ResultsSlot is the slot in the inventory in which the results of the crafting ingredients are to be
	// placed.
	ResultsSlot byte
}

CreateStackRequestAction is sent by the client when an item is created through being used as part of a recipe. For example, when milk is used to craft a cake, the buckets are leftover. The buckets are moved to the slot sent by the client here. Note that before this is sent, an action for consuming all items in the crafting table/grid is sent. Items that are not fully consumed when used for a recipe should not be destroyed there, but instead, should be turned into their respective resulting items.

func (*CreateStackRequestAction) Marshal 

func (a *CreateStackRequestAction) Marshal(w *Writer)

Marshal ...

func (*CreateStackRequestAction) Unmarshal 

func (a *CreateStackRequestAction) Unmarshal(r *Reader)

Unmarshal ...

type CreativeItem 

type CreativeItem struct {
	// CreativeItemNetworkID is a unique ID for the creative item. It has to be unique for each creative item
	// sent to the client. An incrementing ID per creative item does the job.
	CreativeItemNetworkID uint32
	// Item is the item that should be added to the creative inventory.
	Item ItemStack
}

CreativeItem represents a creative item present in the creative inventory.

type DestroyStackRequestAction 

type DestroyStackRequestAction struct {
	// Count is the count of the item in the source slot that was destroyed.
	Count byte
	// Source is the source slot from which items came that were destroyed by moving them into the creative
	// inventory.
	Source StackRequestSlotInfo
}

DestroyStackRequestAction is sent by the client when it destroys an item in creative mode by moving it back into the creative inventory.

func (*DestroyStackRequestAction) Marshal 

func (a *DestroyStackRequestAction) Marshal(w *Writer)

Marshal ...

func (*DestroyStackRequestAction) Unmarshal 

func (a *DestroyStackRequestAction) Unmarshal(r *Reader)

Unmarshal ...

type DeviceOS 

type DeviceOS int

DeviceOS is a device DeviceOS identifier. It holds a value of one of the constants below and may be found in packets such as the Login packet. 

const (
	DeviceAndroid DeviceOS = iota + 1
	DeviceIOS
	DeviceOSX
	DeviceFireOS
	DeviceGearVR
	DeviceHololens
	DeviceWin10
	DeviceWin32
	DeviceDedicated
	DeviceTVOS
	DeviceOrbis
	DeviceNX
	DeviceXBOX
)

type DropStackRequestAction 

type DropStackRequestAction struct {
	// Count is the count of the item in the source slot that was taken towards the destination slot.
	Count byte
	// Source is the source slot from which items were dropped to the ground.
	Source StackRequestSlotInfo
	// Randomly seems to be set to false in most cases. I'm not entirely sure what this does, but this is what
	// vanilla calls this field.
	Randomly bool
}

DropStackRequestAction is sent by the client when it drops an item out of the inventory when it has its inventory opened. This action is not sent when a player drops an item out of the hotbar using the Q button (or the equivalent on mobile). The InventoryTransaction packet is still used for that action, regardless of whether the item stack network IDs are used or not.

func (*DropStackRequestAction) Marshal 

func (a *DropStackRequestAction) Marshal(w *Writer)

Marshal ...

func (*DropStackRequestAction) Unmarshal 

func (a *DropStackRequestAction) Unmarshal(r *Reader)

Unmarshal ...

type EnchantmentInstance 

type EnchantmentInstance struct {
	Type  byte
	Level byte
}

EnchantmentInstance represents a single enchantment instance with the type of the enchantment and its level.

type EnchantmentOption 

type EnchantmentOption struct {
	// Cost is the cost of the option. This is the amount of XP levels required to select this enchantment
	// option.
	Cost uint32
	// Enchantments holds the enchantments that will be applied to the item when this option is clicked.
	Enchantments ItemEnchantments
	// Name is a name that will be translated to the 'Standard Galactic Alphabet'
	// (https://minecraft.gamepedia.com/Enchanting_Table#Standard_Galactic_Alphabet) client-side. The names
	// generally have no meaning, such as:
	// 'animal imbue range galvanize '
	// 'bless inside creature shrink '
	// 'elder free of inside '
	Name string
	// RecipeNetworkID is a unique network ID for this enchantment option. When enchanting, the client
	// will submit this network ID in a ItemStackRequest packet with the CraftRecipe action, so that the
	// server knows which enchantment was selected.
	// Note that this ID should still be unique with other actual recipes. It's recommended to start counting
	// for enchantment network IDs from the counter used for producing network IDs for the normal recipes.
	RecipeNetworkID uint32
}

EnchantmentOption represents a single option in the enchantment table for a single item. 

type EntityLink struct {
	// RiddenEntityUniqueID is the entity unique ID of the entity that is being ridden. For a player sitting
	// in a boat, this is the unique ID of the boat.
	RiddenEntityUniqueID int64
	// RiderEntityUniqueID is the entity unique ID of the entity that is riding. For a player sitting in a
	// boat, this is the unique ID of the player.
	RiderEntityUniqueID int64
	// Type is one of the types above. It specifies the way the entity is linked to another entity.
	Type byte
	// Immediate is set to immediately dismount an entity from another. This should be set when the mount of
	// an entity is killed.
	Immediate bool
	// RiderInitiated specifies if the link was created by the rider, for example the player starting to ride
	// a horse by itself. This is generally true in vanilla environment for players.
	RiderInitiated bool
}

EntityLink is a link between two entities, typically being one entity riding another.

type ExperimentData 

type ExperimentData struct {
	// Name is the name of the experiment.
	Name string
	// Enabled specifies if the experiment is enabled. Vanilla typically always sets this to true for any
	// experiments sent.
	Enabled bool
}

ExperimentData holds data on an experiment that is either enabled or disabled.

type FurnaceDataRecipe 

type FurnaceDataRecipe FurnaceRecipe

FurnaceDataRecipe is a recipe specifically used for furnace-type crafting stations. It is equal to FurnaceRecipe, except it has an input item with a specific metadata value, instead of any metadata value.

func (*FurnaceDataRecipe) Marshal 

func (recipe *FurnaceDataRecipe) Marshal(w *Writer)

Marshal ...

func (*FurnaceDataRecipe) Unmarshal 

func (recipe *FurnaceDataRecipe) Unmarshal(r *Reader)

Unmarshal ...

type FurnaceRecipe 

type FurnaceRecipe struct {
	// InputType is the item type of the input item. The metadata value of the item is not used in the
	// FurnaceRecipe. Use FurnaceDataRecipe to allow an item with only one metadata value.
	InputType ItemType
	// Output is the item that is created as a result of smelting/cooking an item in the furnace.
	Output ItemStack
	// Block is the block name that is required to create the output of the recipe. The block is not prefixed
	// with 'minecraft:', so it will look like 'furnace' as an example.
	Block string
}

FurnaceRecipe is a recipe that is specifically used for all kinds of furnaces. These recipes don't just apply to furnaces, but also blast furnaces and smokers.

func (*FurnaceRecipe) Marshal 

func (recipe *FurnaceRecipe) Marshal(w *Writer)

Marshal ...

func (*FurnaceRecipe) Unmarshal 

func (recipe *FurnaceRecipe) Unmarshal(r *Reader)

Unmarshal ...

type IO 

type IO interface {
	Uint16(x *uint16)
	Int16(x *int16)
	Uint32(x *uint32)
	Int32(x *int32)
	BEInt32(x *int32)
	Uint64(x *uint64)
	Int64(x *int64)
	Float32(x *float32)
	Uint8(x *uint8)
	Bool(x *bool)
	Varint64(x *int64)
	Varuint64(x *uint64)
	Varint32(x *int32)
	Varuint32(x *uint32)
	String(x *string)
	StringUTF(x *string)
	ByteSlice(x *[]byte)
	Vec3(x *mgl32.Vec3)
	Vec2(x *mgl32.Vec2)
	BlockPos(x *BlockPos)
	UBlockPos(x *BlockPos)
	ByteFloat(x *float32)
	Bytes(p *[]byte)
	NBT(m *map[string]interface{}, encoding nbt.Encoding)
	NBTList(m *[]interface{}, encoding nbt.Encoding)
	UUID(x *uuid.UUID)
	VarRGBA(x *color.RGBA)
	EntityMetadata(x *map[uint32]interface{})
	Item(x *ItemStack)
	ItemInstance(i *ItemInstance)

	UnknownEnumOption(value interface{}, enum string)
	InvalidValue(value interface{}, forField, reason string)
}

IO represents a packet IO direction. Implementations of this interface are Reader and Writer. Reader reads data from the input stream into the pointers passed, whereas Writer writes the values the pointers point to to the output stream.

type InventoryAction 

type InventoryAction struct {
	// SourceType is the source type of the inventory action. It is one of the constants above.
	SourceType uint32
	// WindowID is the ID of the window that the client has opened. The window ID is not set if the SourceType
	// is InventoryActionSourceWorld.
	WindowID int32
	// SourceFlags is a combination of flags that is only set if the SourceType is InventoryActionSourceWorld.
	SourceFlags uint32
	// InventorySlot is the slot in which the action took place. Each action only describes the change of item
	// in a single slot.
	InventorySlot uint32
	// OldItem is the item that was present in the slot before the inventory action. It should be checked by
	// the server to ensure the inventories were not out of sync.
	OldItem ItemInstance
	// NewItem is the new item that was put in the InventorySlot that the OldItem was in. It must be checked
	// in combination with other inventory actions to ensure that the transaction is balanced.
	NewItem ItemInstance
}

InventoryAction represents a single action that took place during an inventory transaction. On itself, this inventory action is always unbalanced: It must be combined with other actions in an inventory transaction to form a balanced transaction.

type InventoryTransactionData 

type InventoryTransactionData interface {
	// Marshal encodes the inventory transaction data to its binary representation into buf.
	Marshal(w *Writer)
	// Unmarshal decodes a serialised inventory transaction data object from Reader r into the
	// InventoryTransactionData instance.
	Unmarshal(r *Reader)
}

InventoryTransactionData represents an object that holds data specific to an inventory transaction type. The data it holds depends on the type.

type ItemComponentEntry 

type ItemComponentEntry struct {
	// Name is the name of the item, which is a name like 'minecraft:stick'.
	Name string
	// Data is a map containing the components and properties of the item.
	Data map[string]interface{}
}

ItemComponentEntry is sent in the ItemComponent item table. It holds a name and all of the components and properties associated to the item.

type ItemEnchantments 

type ItemEnchantments struct {
	// Slot is either 0, 1 or 2. Its exact usage is not clear.
	Slot int32
	// Enchantments is an array of 3 slices of enchantment instances. Each array represents enchantments that
	// will be added to the item with a different activation type. The arrays in which enchantments are sent
	// by the vanilla server are as follows:
	// slice 1 { protection, fire protection, feather falling, blast protection, projectile protection,
	//           thorns, respiration, depth strider, aqua affinity, frost walker, soul speed }
	// slice 2 { sharpness, smite, bane of arthropods, fire aspect, looting, silk touch, unbreaking, fortune,
	//           flame, luck of the sea, impaling }
	// slice 3 { knockback, efficiency, power, punch, infinity, lure, mending, curse of binding,
	//           curse of vanishing, riptide, loyalty, channeling, multishot, piercing, quick charge }
	// The first slice holds armour enchantments, the differences between the slice 2 and slice 3 are more
	// vaguely defined.
	Enchantments [3][]EnchantmentInstance
}

ItemEnchantments holds information on the enchantments that are applied to an item when a specific button is clicked in the enchantment table.

type ItemEntry 

type ItemEntry struct {
	// Name if the name of the item, which is a name like 'minecraft:stick'.
	Name string
	// RuntimeID is the ID that is used to identify the item over network. After sending all items in the
	// StartGame packet, items will then be identified using these numerical IDs.
	RuntimeID int16
	// ComponentBased specifies if the item was created using components, meaning the item is a custom item.
	ComponentBased bool
}

ItemEntry is an item sent in the StartGame item table. It holds a name and a legacy ID, which is used to point back to that name.

type ItemInstance 

type ItemInstance struct {
	// StackNetworkID is the network ID of the item stack. If the stack is empty, 0 is always written for this
	// field. If not, the field should be set to 1 if the server authoritative inventories are disabled in the
	// StartGame packet, or to a unique stack ID if it is enabled.
	StackNetworkID int32
	// Stack is the actual item stack of the item instance.
	Stack ItemStack
}

ItemInstance represents a unique instance of an item stack. These instances carry a specific network ID that is persistent for the stack.

type ItemStack 

type ItemStack struct {
	ItemType
	// BlockRuntimeID ...
	BlockRuntimeID int32
	// Count is the count of items that the item stack holds.
	Count uint16
	// NBTData is a map that is serialised to its NBT representation when sent in a packet.
	NBTData map[string]interface{}
	// CanBePlacedOn is a list of block identifiers like 'minecraft:stone' which the item, if it is an item
	// that can be placed, can be placed on top of.
	CanBePlacedOn []string
	// CanBreak is a list of block identifiers like 'minecraft:dirt' that the item is able to break.
	CanBreak []string
	// HasNetworkID ...
	HasNetworkID bool
}

ItemStack represents an item instance/stack over network. It has a network ID and a metadata value that define its type.

type ItemStackRequest 

type ItemStackRequest struct {
	// RequestID is a unique ID for the request. This ID is used by the server to send a response for this
	// specific request in the ItemStackResponse packet.
	RequestID int32
	// Actions is a list of actions performed by the client. The actual type of the actions depends on which
	// ID was present, and is one of the concrete types below.
	Actions []StackRequestAction
	// CustomNames is a list of custom names involved in the request. This is typically filled with one string
	// when an anvil is used.
	CustomNames []string
}

ItemStackRequest represents a single request present in an ItemStackRequest packet sent by the client to change an item in an inventory. Item stack requests are either approved or rejected by the server using the ItemStackResponse packet.

type ItemStackResponse 

type ItemStackResponse struct {
	// Status specifies if the request with the RequestID below was successful. If this is the case, the
	// ContainerInfo below will have information on what slots ended up changing. If not, the container info
	// will be empty.
	// A non-0 status means an error occurred and will result in the action being reverted.
	Status uint8
	// RequestID is the unique ID of the request that this response is in reaction to. If rejected, the client
	// will undo the actions from the request with this ID.
	RequestID int32
	// ContainerInfo holds information on the containers that had their contents changed as a result of the
	// request.
	ContainerInfo []StackResponseContainerInfo
}

ItemStackResponse is a response to an individual ItemStackRequest.

type ItemType 

type ItemType struct {
	// NetworkID is the numerical network ID of the item. This is sometimes a positive ID, and sometimes a
	// negative ID, depending on what item it concerns.
	NetworkID int32
	// MetadataValue is the metadata value of the item. For some items, this is the damage value, whereas for
	// other items it is simply an identifier of a variant of the item.
	MetadataValue uint32
}

ItemType represents a consistent combination of network ID and metadata value of an item. It cannot usually be changed unless a new item is obtained.

type LabTableCombineStackRequestAction 

type LabTableCombineStackRequestAction struct{}

LabTableCombineStackRequestAction is sent by the client when it uses a lab table to combine item stacks.

func (*LabTableCombineStackRequestAction) Marshal 

func (a *LabTableCombineStackRequestAction) Marshal(*Writer)

Marshal ...

func (*LabTableCombineStackRequestAction) Unmarshal 

func (a *LabTableCombineStackRequestAction) Unmarshal(*Reader)

Unmarshal ...

type LegacySetItemSlot 

type LegacySetItemSlot struct {
	ContainerID byte
	Slots       []byte
}

LegacySetItemSlot represents a slot that was changed during an InventoryTransaction. These slots have to have their values set accordingly for actions such as when dropping an item out of the hotbar, where the inventory container and the slot that had its item dropped is passed.

type MapDecoration 

type MapDecoration struct {
	// Type is the type of the map decoration. The type specifies the shape (and sometimes the colour) that
	// the map decoration gets.
	Type byte
	// Rotation is the rotation of the map decoration. It is byte due to the 16 fixed directions that the
	// map decoration may face.
	Rotation byte
	// X is the offset on the X axis in pixels of the decoration.
	X byte
	// Y is the offset on the Y axis in pixels of the decoration.
	Y byte
	// Label is the name of the map decoration. This name may be of any value.
	Label string
	// Colour is the colour of the map decoration. Some map decoration types have a specific colour set
	// automatically, whereas others may be changed.
	Colour color.RGBA
}

MapDecoration is a fixed decoration on a map: Its position or other properties do not change automatically client-side.

type MapTrackedObject 

type MapTrackedObject struct {
	// Type is the type of the tracked object. It is either MapObjectTypeEntity or MapObjectTypeBlock.
	Type int32
	// EntityUniqueID is the unique ID of the entity, if the tracked object was an entity. It needs not to be
	// filled out if Type is not MapObjectTypeEntity.
	EntityUniqueID int64
	// BlockPosition is the position of the block, if the tracked object was a block. It needs not to be
	// filled out if Type is not MapObjectTypeBlock.
	BlockPosition BlockPos
}

MapTrackedObject is an object on a map that is 'tracked' by the client, such as an entity or a block. This object may move, which is handled client-side.

type MineBlockStackRequestAction 

type MineBlockStackRequestAction struct {
	// Unknown1 ... TODO: Find out what this is for
	Unknown1 int32
	// PredictedDurability is the durability of the item that the client assumes to be present at the time.
	PredictedDurability int32
	// StackNetworkID is the unique stack ID that the client assumes to be present at the time. The server
	// must check if these IDs match. If they do not match, servers should reject the stack request that the
	// action holding this info was in.
	StackNetworkID int32
}

MineBlockStackRequestAction is sent by the client when it breaks a block.

func (*MineBlockStackRequestAction) Marshal 

func (a *MineBlockStackRequestAction) Marshal(w *Writer)

Marshal ...

func (*MineBlockStackRequestAction) Unmarshal 

func (a *MineBlockStackRequestAction) Unmarshal(r *Reader)

Unmarshal ...

type MismatchTransactionData 

type MismatchTransactionData struct{}

MismatchTransactionData represents a mismatched inventory transaction's data object.

func (*MismatchTransactionData) Marshal 

func (*MismatchTransactionData) Marshal(*Writer)

Marshal ...

func (*MismatchTransactionData) Unmarshal 

func (*MismatchTransactionData) Unmarshal(*Reader)

Unmarshal ...

type MultiRecipe 

type MultiRecipe struct {
	// UUID is a UUID identifying the recipe. This can actually be set to an empty UUID if the CraftingEvent
	// packet is not used.
	UUID uuid.UUID
	// RecipeNetworkID is a unique ID used to identify the recipe over network. Each recipe must have a unique
	// network ID. Recommended is to just increment a variable for each unique recipe registered.
	// This field must never be 0.
	RecipeNetworkID uint32
}

MultiRecipe serves as an 'enable' switch for multi-shape recipes.

func (*MultiRecipe) Marshal 

func (recipe *MultiRecipe) Marshal(w *Writer)

Marshal ...

func (*MultiRecipe) Unmarshal 

func (recipe *MultiRecipe) Unmarshal(r *Reader)

Unmarshal ...

type NormalTransactionData 

type NormalTransactionData struct{}

NormalTransactionData represents an inventory transaction data object for normal transactions, such as crafting. It has no content.

func (*NormalTransactionData) Marshal 

func (*NormalTransactionData) Marshal(*Writer)

Marshal ...

func (*NormalTransactionData) Unmarshal 

func (*NormalTransactionData) Unmarshal(*Reader)

Unmarshal ...

type PersonaPiece 

type PersonaPiece struct {
	// PieceId is a UUID that identifies the piece itself, which is unique for each separate piece.
	PieceID string
	// PieceType holds the type of the piece. Several types I was able to find immediately are listed below.
	// - persona_skeleton
	// - persona_body
	// - persona_skin
	// - persona_bottom
	// - persona_feet
	// - persona_top
	// - persona_mouth
	// - persona_hair
	// - persona_eyes
	// - persona_facial_hair
	PieceType string
	// PackID is a UUID that identifies the pack that the persona piece belongs to.
	PackID string
	// Default specifies if the piece is one of the default pieces. This is true when the piece is one of
	// those that a Steve or Alex skin have.
	Default bool
	// ProductID is a UUID that identifies the piece when it comes to purchases. It is empty for pieces that
	// have the 'Default' field set to true.
	ProductID string
}

PersonaPiece represents a piece of a persona skin. All pieces are sent separately.

type PersonaPieceTintColour 

type PersonaPieceTintColour struct {
	// PieceType is the type of the persona skin piece that this tint colour concerns. The piece type must
	// always be present in the persona pieces list, but not each piece type has a tint colour sent.
	// Pieces that do have a tint colour that I was able to find immediately are listed below.
	// - persona_mouth
	// - persona_eyes
	// - persona_hair
	PieceType string
	// Colours is a list four colours written in hex notation (note, that unlike the SkinColour field in
	// the ClientData struct, this is actually ARGB, not just RGB).
	// The colours refer to different parts of the skin piece. The 'persona_eyes' may have the following
	// colours: ["#ffa12722","#ff2f1f0f","#ff3aafd9","#0"]
	// The first hex colour represents the tint colour of the iris, the second hex colour represents the
	// eyebrows and the third represents the sclera. The fourth is #0 because there are only 3 parts of the
	// persona_eyes skin piece.
	Colours []string
}

PersonaPieceTintColour describes the tint colours of a specific piece of a persona skin.

type PlaceStackRequestAction 

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

PlaceStackRequestAction is sent by the client to the server to place x amount of items from one slot into another slot, such as when shift clicking an item in the inventory to move it around or when moving an item in the cursor into a slot.

func (*PlaceStackRequestAction) Marshal 

func (a *PlaceStackRequestAction) Marshal(w *Writer)

Marshal ...

func (*PlaceStackRequestAction) Unmarshal 

func (a *PlaceStackRequestAction) Unmarshal(r *Reader)

Unmarshal ...

type PlayerBlockAction 

type PlayerBlockAction struct {
	// Action is the action to be performed, and is one of the constants listed above.
	Action int32
	// BlockPos is the position of the block that was interacted with.
	BlockPos BlockPos
	// Face is the face of the block that was interacted with.
	Face int32
}

PlayerBlockAction ...

type PlayerListEntry 

type PlayerListEntry struct {
	// UUID is the UUID of the player as sent in the Login packet when the client joined the server. It must
	// match this UUID exactly for the correct XBOX Live icon to show up in the list.
	UUID uuid.UUID
	// EntityUniqueID is the unique entity ID of the player. This ID typically stays consistent during the
	// lifetime of a world, but servers often send the runtime ID for this.
	EntityUniqueID int64
	// Username is the username that is shown in the player list of the player that obtains a PlayerList
	// packet with this entry. It does not have to be the same as the actual username of the player.
	Username string
	// XUID is the XBOX Live user ID of the player, which will remain consistent as long as the player is
	// logged in with the XBOX Live account.
	XUID string
	// PlatformChatID is an identifier only set for particular platforms when chatting (presumably only for
	// Nintendo Switch). It is otherwise an empty string, and is used to decide which players are able to
	// chat with each other.
	PlatformChatID string
	// BuildPlatform is the platform of the player as sent by that player in the Login packet.
	BuildPlatform int32
	// Skin is the skin of the player that should be added to the player list. Once sent here, it will not
	// have to be sent again.
	Skin Skin
	// Teacher is a Minecraft: Education Edition field. It specifies if the player to be added to the player
	// list is a teacher.
	Teacher bool
	// Host specifies if the player that is added to the player list is the host of the game.
	Host bool
}

PlayerListEntry is an entry found in the PlayerList packet. It represents a single player using the UUID found in the entry, and contains several properties such as the skin.

type PlayerMovementSettings 

type PlayerMovementSettings struct {
	// MovementType specifies the way the server handles player movement. Available options are
	// packet.AuthoritativeMovementModeClient, packet.AuthoritativeMovementModeServer and
	// packet.AuthoritativeMovementModeServerWithRewind, where server the server authoritative types result
	// in the client sending PlayerAuthInput packets instead of MovePlayer packets and the rewind mode
	// requires sending the tick of movement and several actions.
	MovementType int32
	// RewindHistorySize is the amount of history to keep at maximum if MovementType is
	// packet.AuthoritativeMovementModeServerWithRewind.
	RewindHistorySize int32
	// ServerAuthoritativeBlockBreaking specifies if block breaking should be sent through
	// packet.PlayerAuthInput or not. This field is somewhat redundant as it is always enabled if
	// MovementType is packet.AuthoritativeMovementModeServer or
	// packet.AuthoritativeMovementModeServerWithRewind
	ServerAuthoritativeBlockBreaking bool
}

PlayerMovementSettings represents the different server authoritative movement settings. These control how the client will provide input to the server.

type PotionContainerChangeRecipe 

type PotionContainerChangeRecipe struct {
	// InputItemID is the item ID of the item to be put in. This is typically either the ID of a normal potion
	// or a splash potion.
	InputItemID int32
	// ReagentItemID is the item ID of the item that needs to be added to the container in order to create the
	// output item.
	ReagentItemID int32
	// OutputItemID is the item that is created using a combination of the InputItem and ReagentItem, which is
	// typically either the ID of a splash potion or a lingering potion.
	OutputItemID int32
}

PotionContainerChangeRecipe represents a recipe to turn a potion from one type to another. This means from a drinkable potion + gunpowder -> splash potion, and from a splash potion + dragon breath -> lingering potion.

type PotionRecipe 

type PotionRecipe struct {
	// InputPotionID is the item ID of the potion to be put in.
	InputPotionID int32
	// InputPotionMetadata is the type of the potion to be put in. This is typically the meta of the
	// awkward potion (or water bottle to create an awkward potion).
	InputPotionMetadata int32
	// ReagentItemID is the item ID of the item that needs to be added to the brewing stand in order to brew
	// the output potion.
	ReagentItemID int32
	// ReagentItemMetadata is the metadata value of the item that needs to be added to the brewing stand in
	// order to brew the output potion.
	ReagentItemMetadata int32
	// OutputPotionID is the item ID of the potion obtained as a result of the brewing recipe.
	OutputPotionID int32
	// OutputPotionMetadata is the type of the potion that is obtained as a result of brewing the input
	// potion with the reagent item.
	OutputPotionMetadata int32
}

PotionRecipe represents a potion mixing recipe which may be used in a brewing stand.

type Reader 

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

Reader implements reading operations for reading types from Minecraft packets. Each Packet implementation has one passed to it. Reader's uses should always be encapsulated with a deferred recovery. Reader panics on invalid data.

func NewReader 

func NewReader(r interface {
	io.Reader
	io.ByteReader
}, shieldID int32) *Reader

NewReader creates a new Reader using the io.ByteReader passed as underlying source to read bytes from.

func (*Reader) BEInt32 

func (r *Reader) BEInt32(x *int32)

BEInt32 reads a big endian int32 from the underlying buffer.

func (*Reader) BlockPos 

func (r *Reader) BlockPos(x *BlockPos)

BlockPos reads three varint32s into a BlockPos from the underlying buffer.

func (*Reader) Bool 

func (r *Reader) Bool(x *bool)

Bool reads a bool from the underlying buffer.

func (*Reader) ByteFloat 

func (r *Reader) ByteFloat(x *float32)

ByteFloat reads a rotational float32 from a single byte.

func (*Reader) ByteSlice 

func (r *Reader) ByteSlice(x *[]byte)

ByteSlice reads a byte slice from the underlying buffer, similarly to String.

func (*Reader) Bytes 

func (r *Reader) Bytes(p *[]byte)

Bytes reads the leftover bytes into a byte slice.

func (*Reader) EntityMetadata 

func (r *Reader) EntityMetadata(x *map[uint32]interface{})

EntityMetadata reads an entity metadata map from the underlying buffer into map x.

func (*Reader) Float32 

func (r *Reader) Float32(x *float32)

Float32 reads a little endian float32 from the underlying buffer.

func (*Reader) Int16 

func (r *Reader) Int16(x *int16)

Int16 reads a little endian int16 from the underlying buffer.

func (*Reader) Int32 

func (r *Reader) Int32(x *int32)

Int32 reads a little endian int32 from the underlying buffer.

func (*Reader) Int64 

func (r *Reader) Int64(x *int64)

Int64 reads a little endian int64 from the underlying buffer.

func (*Reader) InvalidValue 

func (r *Reader) InvalidValue(value interface{}, forField, reason string)

InvalidValue panics with an error indicating that the value passed is not valid for a specific field.

func (*Reader) Item 

func (r *Reader) Item(x *ItemStack)

Item reads an ItemStack x from the underlying buffer.

func (*Reader) ItemInstance 

func (r *Reader) ItemInstance(i *ItemInstance)

ItemInstance reads an ItemInstance x to the underlying buffer.

func (*Reader) LimitInt32 

func (r *Reader) LimitInt32(value int32, min, max int32)

LimitInt32 checks if the value passed is lower than the limit passed and higher than the minimum. If not, the Reader panics.

func (*Reader) LimitUint32 

func (r *Reader) LimitUint32(value uint32, max uint32)

LimitUint32 checks if the value passed is lower than the limit passed. If not, the Reader panics.

func (*Reader) NBT 

func (r *Reader) NBT(m *map[string]interface{}, encoding nbt.Encoding)

NBT reads a compound tag into a map from the underlying buffer.

func (*Reader) NBTList 

func (r *Reader) NBTList(m *[]interface{}, encoding nbt.Encoding)

NBTList reads a list of NBT tags from the underlying buffer.

func (*Reader) String 

func (r *Reader) String(x *string)

String reads a string from the underlying buffer.

func (*Reader) StringUTF 

func (r *Reader) StringUTF(x *string)

StringUTF ...

func (*Reader) UBlockPos 

func (r *Reader) UBlockPos(x *BlockPos)

UBlockPos reads three varint32s, one unsigned for the y, into a BlockPos from the underlying buffer.

func (*Reader) UUID 

func (r *Reader) UUID(x *uuid.UUID)

UUID reads a uuid.UUID from the underlying buffer.

func (*Reader) Uint16 

func (r *Reader) Uint16(x *uint16)

Uint16 reads a little endian uint16 from the underlying buffer.

func (*Reader) Uint32 

func (r *Reader) Uint32(x *uint32)

Uint32 reads a little endian uint32 from the underlying buffer.

func (*Reader) Uint64 

func (r *Reader) Uint64(x *uint64)

Uint64 reads a little endian uint64 from the underlying buffer.

func (*Reader) Uint8 

func (r *Reader) Uint8(x *uint8)

Uint8 reads a uint8 from the underlying buffer.

func (*Reader) UnknownEnumOption 

func (r *Reader) UnknownEnumOption(value interface{}, enum string)

UnknownEnumOption panics with an unknown enum option error.

func (*Reader) VarRGBA 

func (r *Reader) VarRGBA(x *color.RGBA)

VarRGBA reads a color.RGBA x from a varuint32.

func (*Reader) Varint32 

func (r *Reader) Varint32(x *int32)

Varint32 reads up to 5 bytes from the underlying buffer into an int32.

func (*Reader) Varint64 

func (r *Reader) Varint64(x *int64)

Varint64 reads up to 10 bytes from the underlying buffer into an int64.

func (*Reader) Varuint32 

func (r *Reader) Varuint32(x *uint32)

Varuint32 reads up to 5 bytes from the underlying buffer into a uint32.

func (*Reader) Varuint64 

func (r *Reader) Varuint64(x *uint64)

Varuint64 reads up to 10 bytes from the underlying buffer into a uint64.

func (*Reader) Vec2 

func (r *Reader) Vec2(x *mgl32.Vec2)

Vec2 reads two float32s into an mgl32.Vec2 from the underlying buffer.

func (*Reader) Vec3 

func (r *Reader) Vec3(x *mgl32.Vec3)

Vec3 reads three float32s into an mgl32.Vec3 from the underlying buffer.

type Recipe 

type Recipe interface {
	// Marshal encodes the recipe data to its binary representation into buf.
	Marshal(w *Writer)
	// Unmarshal decodes a serialised recipe from Reader r into the recipe instance.
	Unmarshal(r *Reader)
}

Recipe represents a recipe that may be sent in a CraftingData packet to let the client know what recipes are available server-side.

type RecipeIngredientItem 

type RecipeIngredientItem struct {
	// NetworkID is the numerical network ID of the item. This is sometimes a positive ID, and sometimes a
	// negative ID, depending on what item it concerns.
	NetworkID int32
	// MetadataValue is the metadata value of the item. For some items, this is the damage value, whereas for
	// other items it is simply an identifier of a variant of the item.
	MetadataValue int32
	// Count is the count of items that the recipe ingredient is required to have.
	Count int32
}

RecipeIngredientItem represents an item that may be used as a recipe ingredient.

type ReleaseItemTransactionData 

type ReleaseItemTransactionData struct {
	// ActionType is the type of the ReleaseItem inventory transaction. It is one of the action types found
	// in the constants above, and specifies the way the item was released.
	// As of 1.13, the ActionType is always 0. This field can be ignored, because releasing food (by consuming
	// it) or releasing a bow (to shoot an arrow) is essentially the same.
	ActionType uint32
	// HotBarSlot is the hot bar slot that the player was holding while releasing the item. It should be used
	// to ensure that the hot bar slot and held item are correctly synchronised with the server.
	HotBarSlot int32
	// HeldItem is the item that was released. The server should check if this item is actually present in the
	// HotBarSlot.
	HeldItem ItemInstance
	// HeadPosition is the position of the player's head at the time of releasing the item. This is used
	// mainly for purposes such as spawning eating particles at that position.
	HeadPosition mgl32.Vec3
}

ReleaseItemTransactionData represents an inventory transaction data object sent when the client releases the item it was using, for example when stopping while eating or stopping the charging of a bow.

func (*ReleaseItemTransactionData) Marshal 

func (data *ReleaseItemTransactionData) Marshal(w *Writer)

Marshal ...

func (*ReleaseItemTransactionData) Unmarshal 

func (data *ReleaseItemTransactionData) Unmarshal(r *Reader)

Unmarshal ...

type ScoreboardEntry 

type ScoreboardEntry struct {
	// EntryID is a unique identifier of this entry. Each entry that represents a different value should get
	// its own entry ID. When modifying a scoreboard, entries that represent the same line should have the
	// same entry ID.
	EntryID int64
	// ObjectiveName is the name of the objective that this scoreboard entry is for. It must be identical to
	// the one set in the SetDisplayObjective packet previously sent.
	ObjectiveName string
	// Score is the score that the entry represents. Scoreboard entries are ordered using this score, so in
	// order to get the scoreboard to be ordered as expected when trying to write non-score related text on
	// a scoreboard, this score should be incremented for each entry.
	Score int32
	// IdentityType is the identity type of the scoreboard entry. The entry may represent an entity, player or
	// a fake player, as the constants above indicate.
	// In order to write plain text to the scoreboard, ScoreboardIdentityFakePlayer should always be used, in
	// combination with the DisplayName field. A different identity type will use the name of the entity.
	IdentityType byte
	// EntityUniqueID is the unique ID of either the player or the entity represented by the scoreboard entry.
	// This field is only used if IdentityType is either ScoreboardIdentityEntity or ScoreboardIdentityPlayer.
	EntityUniqueID int64
	// DisplayName is the custom name of the scoreboard entry. This field is only used if IdentityType is
	// ScoreboardIdentityFakePlayer. If this identity type is not used, the name of the entity/player will be
	// shown instead.
	DisplayName string
}

ScoreboardEntry represents a single entry that may be found on a scoreboard. These entries represent a line on the scoreboard each.

type ScoreboardIdentityEntry 

type ScoreboardIdentityEntry struct {
	// EntryID is the unique identifier of the entry that the identity should be associated with, or that
	// associations should be cleared from.
	EntryID int64
	// EntityUniqueID is the unique ID that the entry should be associated with. It is empty if the
	// SetScoreboardIdentity packet is sent to remove associations with identities.
	EntityUniqueID int64
}

ScoreboardIdentityEntry holds an entry to either associate an identity with one of the entries in a scoreboard, or to remove associations.

type ShapedChemistryRecipe 

type ShapedChemistryRecipe ShapedRecipe

ShapedChemistryRecipe is a recipe specifically made for chemistry related features, which exist only in the Education Edition. It functions the same as a normal ShapedRecipe.

func (*ShapedChemistryRecipe) Marshal 

func (recipe *ShapedChemistryRecipe) Marshal(w *Writer)

Marshal ...

func (*ShapedChemistryRecipe) Unmarshal 

func (recipe *ShapedChemistryRecipe) Unmarshal(r *Reader)

Unmarshal ...

type ShapedRecipe 

type ShapedRecipe struct {
	// RecipeID is a unique ID of the recipe. This ID must be unique amongst all other types of recipes too,
	// but its functionality is not exactly known.
	RecipeID string
	// Width is the width of the recipe's shape.
	Width int32
	// Height is the height of the recipe's shape.
	Height int32
	// Input is a list of items that serve as the input of the shapeless recipe. These items are the items
	// required to craft the output. The amount of input items must be exactly equal to Width * Height.
	Input []RecipeIngredientItem
	// Output is a list of items that are created as a result of crafting the recipe.
	Output []ItemStack
	// UUID is a UUID identifying the recipe. This can actually be set to an empty UUID if the CraftingEvent
	// packet is not used.
	UUID uuid.UUID
	// Block is the block name that is required to craft the output of the recipe. The block is not prefixed
	// with 'minecraft:', so it will look like 'crafting_table' as an example.
	Block string
	// Priority ...
	Priority int32
	// RecipeNetworkID is a unique ID used to identify the recipe over network. Each recipe must have a unique
	// network ID. Recommended is to just increment a variable for each unique recipe registered.
	// This field must never be 0.
	RecipeNetworkID uint32
}

ShapedRecipe is a recipe that has a specific shape that must be used to craft the output of the recipe. Trying to craft the item in any other shape will not work. The ShapedRecipe is of the same structure as the ShapedChemistryRecipe.

func (*ShapedRecipe) Marshal 

func (recipe *ShapedRecipe) Marshal(w *Writer)

Marshal ...

func (*ShapedRecipe) Unmarshal 

func (recipe *ShapedRecipe) Unmarshal(r *Reader)

Unmarshal ...

type ShapelessChemistryRecipe 

type ShapelessChemistryRecipe ShapelessRecipe

ShapelessChemistryRecipe is a recipe specifically made for chemistry related features, which exist only in the Education Edition. They function the same as shapeless recipes do.

func (*ShapelessChemistryRecipe) Marshal 

func (recipe *ShapelessChemistryRecipe) Marshal(w *Writer)

Marshal ...

func (*ShapelessChemistryRecipe) Unmarshal 

func (recipe *ShapelessChemistryRecipe) Unmarshal(r *Reader)

Unmarshal ...

type ShapelessRecipe 

type ShapelessRecipe struct {
	// RecipeID is a unique ID of the recipe. This ID must be unique amongst all other types of recipes too,
	// but its functionality is not exactly known.
	RecipeID string
	// Input is a list of items that serve as the input of the shapeless recipe. These items are the items
	// required to craft the output.
	Input []RecipeIngredientItem
	// Output is a list of items that are created as a result of crafting the recipe.
	Output []ItemStack
	// UUID is a UUID identifying the recipe. This can actually be set to an empty UUID if the CraftingEvent
	// packet is not used.
	UUID uuid.UUID
	// Block is the block name that is required to craft the output of the recipe. The block is not prefixed
	// with 'minecraft:', so it will look like 'crafting_table' as an example.
	// The available blocks are:
	// - crafting_table
	// - cartography_table
	// - stonecutter
	// - furnace
	// - blast_furnace
	// - smoker
	// - campfire
	Block string
	// Priority ...
	Priority int32
	// RecipeNetworkID is a unique ID used to identify the recipe over network. Each recipe must have a unique
	// network ID. Recommended is to just increment a variable for each unique recipe registered.
	// This field must never be 0.
	RecipeNetworkID uint32
}

ShapelessRecipe is a recipe that has no particular shape. Its functionality is shared with the RecipeShulkerBox and RecipeShapelessChemistry types.

func (*ShapelessRecipe) Marshal 

func (recipe *ShapelessRecipe) Marshal(w *Writer)

Marshal ...

func (*ShapelessRecipe) Unmarshal 

func (recipe *ShapelessRecipe) Unmarshal(r *Reader)

Unmarshal ...

type ShulkerBoxRecipe 

type ShulkerBoxRecipe ShapelessRecipe

ShulkerBoxRecipe is a shapeless recipe made specifically for shulker box crafting, so that they don't lose their user data when dyeing a shulker box.

func (*ShulkerBoxRecipe) Marshal 

func (recipe *ShulkerBoxRecipe) Marshal(w *Writer)

Marshal ...

func (*ShulkerBoxRecipe) Unmarshal 

func (recipe *ShulkerBoxRecipe) Unmarshal(r *Reader)

Unmarshal ...

type Skin 

type Skin struct {
	// SkinID is a unique ID produced for the skin, for example 'c18e65aa-7b21-4637-9b63-8ad63622ef01_Alex'
	// for the default Alex skin.
	SkinID string
	// PlayFabID is the PlayFab ID produced for the skin. PlayFab is the company that hosts the Marketplace,
	// skins and other related features from the game. This ID is the ID of the skin used to store the skin
	// inside of PlayFab.
	PlayFabID string
	// SkinResourcePatch is a JSON encoded object holding some fields that point to the geometry that the
	// skin has.
	// The JSON object that this holds specifies the way that the geometry of animations and the default skin
	// of the player are combined.
	SkinResourcePatch []byte
	// SkinImageWidth and SkinImageHeight hold the dimensions of the skin image. Note that these are not the
	// dimensions in bytes, but in pixels.
	SkinImageWidth, SkinImageHeight uint32
	// SkinData is a byte slice of SkinImageWidth * SkinImageHeight bytes. It is an RGBA ordered byte
	// representation of the skin pixels.
	SkinData []byte
	// Animations is a list of all animations that the skin has.
	Animations []SkinAnimation
	// CapeImageWidth and CapeImageHeight hold the dimensions of the cape image. Note that these are not the
	// dimensions in bytes, but in pixels.
	CapeImageWidth, CapeImageHeight uint32
	// CapeData is a byte slice of 64*32*4 bytes. It is a RGBA ordered byte representation of the cape
	// colours, much like the SkinData.
	CapeData []byte
	// SkinGeometry is a JSON encoded structure of the geometry data of a skin, containing properties
	// such as bones, uv, pivot etc.
	SkinGeometry []byte
	// TODO: Find out what value AnimationData holds and when it does hold something.
	AnimationData []byte
	// PremiumSkin specifies if this is a skin that was purchased from the marketplace.
	PremiumSkin bool
	// PersonaSkin specifies if this is a skin that was created using the in-game skin creator.
	PersonaSkin bool
	// PersonaCapeOnClassicSkin specifies if the skin had a Persona cape (in-game skin creator cape) equipped
	// on a classic skin.
	PersonaCapeOnClassicSkin bool
	// CapeID is a unique identifier that identifies the cape. It usually holds a UUID in it.
	CapeID string
	// FullSkinID is an ID that represents the skin in full. The actual functionality is unknown: The client
	// does not seem to send a value for this.
	FullSkinID string
	// SkinColour is a hex representation (including #) of the base colour of the skin. An example of the
	// colour sent here is '#b37b62'.
	SkinColour string
	// ArmSize is the size of the arms of the player's model. This is either 'wide' (generally for male skins)
	// or 'slim' (generally for female skins).
	ArmSize string
	// PersonaPieces is a list of all persona pieces that the skin is composed of.
	PersonaPieces []PersonaPiece
	// PieceTintColours is a list of specific tint colours for (some of) the persona pieces found in the list
	// above.
	PieceTintColours []PersonaPieceTintColour
	// Trusted specifies if the skin is 'trusted'. No code should rely on this field, as any proxy or client
	// can easily change it.
	Trusted bool
}

Skin represents the skin of a player as sent over network. The skin holds a texture and a model, and optional animations which may be present when the skin is created using persona or bought from the marketplace.

type SkinAnimation 

type SkinAnimation struct {
	// ImageWidth and ImageHeight hold the dimensions of the animation image. Note that these are not the
	// dimensions in bytes, but in pixels.
	ImageWidth, ImageHeight uint32
	// ImageData is a byte slice of ImageWidth * ImageHeight bytes. It is an RGBA ordered byte representation
	// of the animation image pixels. The ImageData contains FrameCount images in it, which each represent one
	// stage of the animation. The actual part of the skin that this field holds depends on the AnimationType,
	// where SkinAnimationHead holds only the head and its hat, whereas the other animations hold the entire
	// body of the skin.
	ImageData []byte
	// AnimationType is the type of the animation, which is one of the types found above. The data that
	// ImageData contains depends on this type.
	AnimationType uint32
	// FrameCount is the amount of frames that the skin animation holds. The number of frames here is the
	// amount of images that may be found in the ImageData field.
	FrameCount float32
	// ExpressionType is the type of expression made by the skin, which is one the types found above.
	ExpressionType uint32
}

SkinAnimation represents an animation that may be added to a skin. The client plays the animation itself, without the server having to do so. The rate at which these animations play appears to be decided by the client.

type StackRequestAction 

type StackRequestAction interface {
	// Marshal encodes the stack request action its binary representation into buf.
	Marshal(w *Writer)
	// Unmarshal decodes a serialised stack request action object from Reader r into the
	// InventoryTransactionData instance.
	Unmarshal(r *Reader)
}

StackRequestAction represents a single action related to the inventory present in an ItemStackRequest. The action is one of the concrete types below, each of which are indicative of a different action by the client, such as moving an item around the inventory or placing a block.

type StackRequestSlotInfo 

type StackRequestSlotInfo struct {
	// ContainerID is the ID of the container that the slot was in.
	ContainerID byte
	// Slot is the index of the slot within the container with the ContainerID above.
	Slot byte
	// StackNetworkID is the unique stack ID that the client assumes to be present in this slot. The server
	// must check if these IDs match. If they do not match, servers should reject the stack request that the
	// action holding this info was in.
	StackNetworkID int32
}

StackRequestSlotInfo holds information on a specific slot client-side.

type StackResourcePack 

type StackResourcePack struct {
	// UUID is the UUID of the resource pack. Each resource pack downloaded must have a different UUID in
	// order for the client to be able to handle them properly.
	UUID string
	// Version is the version of the resource pack. The client will cache resource packs sent by the server as
	// long as they carry the same version. Sending a resource pack with a different version than previously
	// will force the client to re-download it.
	Version string
	// SubPackName ...
	SubPackName string
}

StackResourcePack represents a resource pack sent on the stack of the client. When sent, the client will apply them in the order of the stack sent.

type StackResponseContainerInfo 

type StackResponseContainerInfo struct {
	// ContainerID is the container ID of the container that the slots that follow are in. For the main
	// inventory, this value seems to be 0x1b. For the cursor, this value seems to be 0x3a. For the crafting
	// grid, this value seems to be 0x0d.
	ContainerID byte
	// SlotInfo holds information on what item stack should be present in specific slots in the container.
	SlotInfo []StackResponseSlotInfo
}

StackResponseContainerInfo holds information on what slots in a container have what item stack in them.

type StackResponseSlotInfo 

type StackResponseSlotInfo struct {
	// Slot and HotbarSlot seem to be the same value every time: The slot that was actually changed. I'm not
	// sure if these slots ever differ.
	Slot, HotbarSlot byte
	// Count is the total count of the item stack. This count will be shown client-side after the response is
	// sent to the client.
	Count byte
	// StackNetworkID is the network ID of the new stack at a specific slot.
	StackNetworkID int32
	// CustomName is the custom name of the item stack. It is used in relation to text filtering.
	CustomName string
	// DurabilityCorrection is the current durability of the item stack. This durability will be shown
	// client-side after the response is sent to the client.
	DurabilityCorrection int32
}

StackResponseSlotInfo holds information on what item stack should be present in a specific slot.

type StructureSettings 

type StructureSettings struct {
	// PaletteName is the name of the palette used in the structure. Currently, it seems that this field is
	// always 'default'.
	PaletteName string
	// IgnoreEntities specifies if the structure should ignore entities or include them. If set to false,
	// entities will also show up in the exported structure.
	IgnoreEntities bool
	// IgnoreBlocks specifies if the structure should ignore blocks or include them. If set to false, blocks
	// will show up in the exported structure.
	IgnoreBlocks bool

	// Size is the size of the area that is about to be exported. The area exported will start at the
	// Position + Offset, and will extend as far as Size specifies.
	Size BlockPos
	// Offset is the offset position that was set in the structure block. The area exported is offset by this
	// position.
	Offset BlockPos
	// LastEditingPlayerUniqueID is the unique ID of the player that last edited the structure block that
	// these settings concern.
	LastEditingPlayerUniqueID int64

	// Rotation is the rotation that the structure block should obtain. See the constants above for available
	// options.
	Rotation byte
	// Mirror specifies the way the structure should be mirrored. It is either no mirror at all, mirror on the
	// x/z axis or both.
	Mirror byte
	// Integrity is usually 1, but may be set to a number between 0 and 1 to omit blocks randomly, using
	// the Seed that follows.
	Integrity float32
	// Seed is the seed used to omit blocks if Integrity is not equal to one. If the Seed is 0, a random
	// seed is selected to omit blocks.
	Seed uint32
	// Pivot is the pivot around which the structure may be rotated.
	Pivot mgl32.Vec3
}

StructureSettings is a struct holding settings of a structure block. Its fields may be changed using the in-game UI on the client-side.

type SwapStackRequestAction 

type SwapStackRequestAction struct {
	// Source and Destination point to the source slot from which Count of the item stack were taken and the
	// destination slot to which this item was moved.
	Source, Destination StackRequestSlotInfo
}

SwapStackRequestAction is sent by the client to swap the item in its cursor with an item present in another container. The two item stacks swap places.

func (*SwapStackRequestAction) Marshal 

func (a *SwapStackRequestAction) Marshal(w *Writer)

Marshal ...

func (*SwapStackRequestAction) Unmarshal 

func (a *SwapStackRequestAction) Unmarshal(r *Reader)

Unmarshal ...

type TakeStackRequestAction 

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

TakeStackRequestAction is sent by the client to the server to take x amount of items from one slot in a container to the cursor.

func (*TakeStackRequestAction) Marshal 

func (a *TakeStackRequestAction) Marshal(w *Writer)

Marshal ...

func (*TakeStackRequestAction) Unmarshal 

func (a *TakeStackRequestAction) Unmarshal(r *Reader)

Unmarshal ...

type TexturePackInfo 

type TexturePackInfo struct {
	// UUID is the UUID of the texture pack. Each texture pack downloaded must have a different UUID in
	// order for the client to be able to handle them properly.
	UUID string
	// Version is the version of the texture pack. The client will cache texture packs sent by the server as
	// long as they carry the same version. Sending a texture pack with a different version than previously
	// will force the client to re-download it.
	Version string
	// Size is the total size in bytes that the texture pack occupies. This is the size of the compressed
	// archive (zip) of the texture pack.
	Size uint64
	// ContentKey is the key used to decrypt the behaviour pack if it is encrypted. This is generally the case
	// for marketplace texture packs.
	ContentKey string
	// SubPackName ...
	SubPackName string
	// ContentIdentity ...
	ContentIdentity string
	// HasScripts specifies if the texture packs has any scripts in it. A client will only download the
	// behaviour pack if it supports scripts, which, up to 1.11, only includes Windows 10.
	HasScripts bool
	// RTXEnabled specifies if the texture pack uses the raytracing technology introduced in 1.16.200.
	RTXEnabled bool
}

TexturePackInfo represents a texture pack's info sent over network. It holds information about the texture pack such as its name, description and version.

type UseItemOnEntityTransactionData 

type UseItemOnEntityTransactionData struct {
	// TargetEntityRuntimeID is the entity runtime ID of the target that was clicked. It is the runtime ID
	// that was assigned to it in the AddEntity packet.
	TargetEntityRuntimeID uint64
	// ActionType is the type of the UseItemOnEntity inventory transaction. It is one of the action types
	// found in the constants above, and specifies the way the player interacted with the entity.
	ActionType uint32
	// HotBarSlot is the hot bar slot that the player was holding while clicking the entity. It should be used
	// to ensure that the hot bar slot and held item are correctly synchronised with the server.
	HotBarSlot int32
	// HeldItem is the item that was held to interact with the entity. The server should check if this item
	// is actually present in the HotBarSlot.
	HeldItem ItemInstance
	// Position is the position of the player at the time of clicking the entity.
	Position mgl32.Vec3
	// ClickedPosition is the position that was clicked relative to the entity's base coordinate. It can be
	// used to find out exactly where a player clicked the entity.
	ClickedPosition mgl32.Vec3
}

UseItemOnEntityTransactionData represents an inventory transaction data object sent when the client uses an item on an entity.

func (*UseItemOnEntityTransactionData) Marshal 

func (data *UseItemOnEntityTransactionData) Marshal(w *Writer)

Marshal ...

func (*UseItemOnEntityTransactionData) Unmarshal 

func (data *UseItemOnEntityTransactionData) Unmarshal(r *Reader)

Unmarshal ...

type UseItemTransactionData 

type UseItemTransactionData struct {
	// LegacyRequestID is an ID that is only non-zero at times when sent by the client. The server should
	// always send 0 for this. When this field is not 0, the LegacySetItemSlots slice below will have values
	// in it.
	// LegacyRequestID ties in with the ItemStackResponse packet. If this field is non-0, the server should
	// respond with an ItemStackResponse packet. Some inventory actions such as dropping an item out of the
	// hotbar are still one using this packet, and the ItemStackResponse packet needs to tie in with it.
	LegacyRequestID int32
	// LegacySetItemSlots are only present if the LegacyRequestID is non-zero. These item slots inform the
	// server of the slots that were changed during the inventory transaction, and the server should send
	// back an ItemStackResponse packet with these slots present in it. (Or false with no slots, if rejected.)
	LegacySetItemSlots []LegacySetItemSlot
	// Actions is a list of actions that took place, that form the inventory transaction together. Each of
	// these actions hold one slot in which one item was changed to another. In general, the combination of
	// all of these actions results in a balanced inventory transaction. This should be checked to ensure that
	// no items are cheated into the inventory.
	Actions []InventoryAction
	// ActionType is the type of the UseItem inventory transaction. It is one of the action types found above,
	// and specifies the way the player interacted with the block.
	ActionType uint32
	// BlockPosition is the position of the block that was interacted with. This is only really a correct
	// block position if ActionType is not UseItemActionClickAir.
	BlockPosition BlockPos
	// BlockFace is the face of the block that was interacted with. When clicking the block, it is the face
	// clicked. When breaking the block, it is the face that was last being hit until the block broke.
	BlockFace int32
	// HotBarSlot is the hot bar slot that the player was holding while clicking the block. It should be used
	// to ensure that the hot bar slot and held item are correctly synchronised with the server.
	HotBarSlot int32
	// HeldItem is the item that was held to interact with the block. The server should check if this item
	// is actually present in the HotBarSlot.
	HeldItem ItemInstance
	// Position is the position of the player at the time of interaction. For clicking a block, this is the
	// position at that time, whereas for breaking the block it is the position at the time of breaking.
	Position mgl32.Vec3
	// ClickedPosition is the position that was clicked relative to the block's base coordinate. It can be
	// used to find out exactly where a player clicked the block.
	ClickedPosition mgl32.Vec3
	// BlockRuntimeID is the runtime ID of the block that was clicked. It may be used by the server to verify
	// that the player's world client-side is synchronised with the server's.
	BlockRuntimeID uint32
}

UseItemTransactionData represents an inventory transaction data object sent when the client uses an item on a block.

func (*UseItemTransactionData) Marshal 

func (data *UseItemTransactionData) Marshal(w *Writer)

Marshal ...

func (*UseItemTransactionData) Unmarshal 

func (data *UseItemTransactionData) Unmarshal(r *Reader)

Unmarshal ...

type Writer 

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

Writer implements writing methods for data types from Minecraft packets. Each Packet implementation has one passed to it when writing. Writer implements methods where values are passed using a pointer, so that Reader and Writer have a synonymous interface and both implement the IO interface.

func NewWriter 

func NewWriter(w interface {
	io.Writer
	io.ByteWriter
}, shieldID int32) *Writer

NewWriter creates a new initialised Writer with an underlying io.ByteWriter to write to.

func (*Writer) BEInt32 

func (w *Writer) BEInt32(x *int32)

BEInt32 writes a big endian int32 to the underlying buffer.

func (*Writer) BlockPos 

func (w *Writer) BlockPos(x *BlockPos)

BlockPos writes a BlockPos as 3 varint32s to the underlying buffer.

func (*Writer) Bool 

func (w *Writer) Bool(x *bool)

Bool writes a bool as either 0 or 1 to the underlying buffer.

func (*Writer) ByteFloat 

func (w *Writer) ByteFloat(x *float32)

ByteFloat writes a rotational float32 as a single byte to the underlying buffer.

func (*Writer) ByteSlice 

func (w *Writer) ByteSlice(x *[]byte)

ByteSlice writes a []byte, prefixed with a varuint32, to the underlying buffer.

func (*Writer) Bytes 

func (w *Writer) Bytes(x *[]byte)

Bytes appends a []byte to the underlying buffer.

func (*Writer) EntityMetadata 

func (w *Writer) EntityMetadata(x *map[uint32]interface{})

EntityMetadata writes an entity metadata map x to the underlying buffer.

func (*Writer) Float32 

func (w *Writer) Float32(x *float32)

Float32 writes a little endian float32 to the underlying buffer.

func (*Writer) Int16 

func (w *Writer) Int16(x *int16)

Int16 writes a little endian int16 to the underlying buffer.

func (*Writer) Int32 

func (w *Writer) Int32(x *int32)

Int32 writes a little endian int32 to the underlying buffer.

func (*Writer) Int64 

func (w *Writer) Int64(x *int64)

Int64 writes a little endian int64 to the underlying buffer.

func (*Writer) InvalidValue 

func (w *Writer) InvalidValue(value interface{}, forField, reason string)

InvalidValue panics with an invalid value error.

func (*Writer) Item 

func (w *Writer) Item(x *ItemStack)

Item writes an ItemStack x to the underlying buffer.

func (*Writer) ItemInstance 

func (w *Writer) ItemInstance(i *ItemInstance)

ItemInstance writes an ItemInstance x to the underlying buffer.

func (*Writer) NBT 

func (w *Writer) NBT(x *map[string]interface{}, encoding nbt.Encoding)

NBT writes a map as NBT to the underlying buffer using the encoding passed.

func (*Writer) NBTList 

func (w *Writer) NBTList(x *[]interface{}, encoding nbt.Encoding)

NBTList writes a slice as NBT to the underlying buffer using the encoding passed.

func (*Writer) String 

func (w *Writer) String(x *string)

String writes a string, prefixed with a varuint32, to the underlying buffer.

func (*Writer) StringUTF 

func (w *Writer) StringUTF(x *string)

StringUTF ...

func (*Writer) UBlockPos 

func (w *Writer) UBlockPos(x *BlockPos)

UBlockPos writes a BlockPos as 2 varint32s and a varuint32 to the underlying buffer.

func (*Writer) UUID 

func (w *Writer) UUID(x *uuid.UUID)

UUID writes a UUID to the underlying buffer.

func (*Writer) Uint16 

func (w *Writer) Uint16(x *uint16)

Uint16 writes a little endian uint16 to the underlying buffer.

func (*Writer) Uint32 

func (w *Writer) Uint32(x *uint32)

Uint32 writes a little endian uint32 to the underlying buffer.

func (*Writer) Uint64 

func (w *Writer) Uint64(x *uint64)

Uint64 writes a little endian uint64 to the underlying buffer.

func (*Writer) Uint8 

func (w *Writer) Uint8(x *uint8)

Uint8 writes a uint8 to the underlying buffer.

func (*Writer) UnknownEnumOption 

func (w *Writer) UnknownEnumOption(value interface{}, enum string)

UnknownEnumOption panics with an unknown enum option error.

func (*Writer) VarRGBA 

func (w *Writer) VarRGBA(x *color.RGBA)

VarRGBA writes a color.RGBA x as a varuint32 to the underlying buffer.

func (*Writer) Varint32 

func (w *Writer) Varint32(x *int32)

Varint32 writes an int32 as 1-5 bytes to the underlying buffer.

func (*Writer) Varint64 

func (w *Writer) Varint64(x *int64)

Varint64 writes an int64 as 1-10 bytes to the underlying buffer.

func (*Writer) Varuint32 

func (w *Writer) Varuint32(x *uint32)

Varuint32 writes a uint32 as 1-5 bytes to the underlying buffer.

func (*Writer) Varuint64 

func (w *Writer) Varuint64(x *uint64)

Varuint64 writes a uint64 as 1-10 bytes to the underlying buffer.

func (*Writer) Vec2 

func (w *Writer) Vec2(x *mgl32.Vec2)

Vec2 writes an mgl32.Vec2 as 2 float32s to the underlying buffer.

func (*Writer) Vec3 

func (w *Writer) Vec3(x *mgl32.Vec3)

Vec3 writes an mgl32.Vec3 as 3 float32s to the underlying buffer.

Source Files

View all Source files

Directories

Path Synopsis
Package login provides functions to decode and encode Minecraft login requests found in the Login packet connection request.
 Package login provides functions to decode and encode Minecraft login requests found in the Login packet connection request.
Package packet implements every packet in the Minecraft Bedrock Edition protocol using the functions found in the minecraft/protocol package.
 Package packet implements every packet in the Minecraft Bedrock Edition protocol using the functions found in the minecraft/protocol package.

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