First support 1.21.130

legacyver/legacypacket/animate.go

@@ -11,15 +11,16 @@ import (
 type Animate struct {
 	// ActionType is the ID of the animation action to execute. It is one of the action type constants that
 	// may be found above.
-	ActionType int32
+	ActionType uint8
 	// EntityRuntimeID is the runtime ID of the player that the animation should be played upon. The runtime
 	// ID is unique for each world session, and entities are generally identified in packets using this
 	// runtime ID.
 	EntityRuntimeID uint64
 	// Data ...
 	Data float32
-	// RowingTime is the time for rowing actions.
-	RowingTime float32
+	// SwingSource is the source for swing actions. It is one of the action type constants that
+	// may be found above.
+	SwingSource protocol.Optional[string]
 }
 
 // ID ...
@@ -28,16 +29,30 @@ func (*Animate) ID() uint32 {
 }
 
 func (pk *Animate) Marshal(io protocol.IO) {
-	io.Varint32(&pk.ActionType)
+	if proto.IsProtoGTE(io, proto.ID898) {
+		io.Uint8(&pk.ActionType)
+	} else {
+		v := int32(pk.ActionType)
+		io.Varint32(&v)
+		pk.ActionType = uint8(v)
+	}
+	defaultRowingTime := float32(0)
 	io.Varuint64(&pk.EntityRuntimeID)
 	if proto.IsProtoGTE(io, proto.ID859) {
 		io.Float32(&pk.Data)
-		if pk.ActionType == packet.AnimateActionRowLeft || pk.ActionType == packet.AnimateActionRowRight {
-			io.Float32(&pk.RowingTime)
-		}
-	} else {
-		if pk.ActionType&0x80 != 0 {
-			io.Float32(&pk.RowingTime)
+		if proto.IsProtoLT(io, proto.ID898) {
+			const (
+				animateActionRowRight = 128
+				animateActionRowLeft  = 129
+			)
+			if pk.ActionType == animateActionRowLeft || pk.ActionType == animateActionRowRight {
+				io.Float32(&defaultRowingTime)
+			}
 		}
+	} else if proto.IsProtoLT(io, proto.ID898) && pk.ActionType&0x80 != 0 {
+		io.Float32(&defaultRowingTime)
+	}
+	if proto.IsProtoGTE(io, proto.ID898) {
+		protocol.OptionalFunc(io, &pk.SwingSource, io.String)
 	}
 }

legacyver/legacypacket/available_commands.go

@@ -0,0 +1,59 @@
+package legacypacket
+
+import (
+	"github.com/akmalfairuz/legacy-version/legacyver/proto"
+	"github.com/sandertv/gophertunnel/minecraft/protocol"
+	"github.com/sandertv/gophertunnel/minecraft/protocol/packet"
+)
+
+// AvailableCommands is sent by the server to send a list of all commands that
+// the player is able to use on the server. This packet holds all the arguments
+// of each commands as well, making it possible for the client to provide
+// auto-completion and command usages. AvailableCommands packets can be resent,
+// but the packet is often very big, so doing this very often should be avoided.
+type AvailableCommands struct {
+	// EnumValues is a slice of all enum values of any enum in the
+	// AvailableCommands packet. EnumValues generally should contain each
+	// possible value only once. Enums are built by pointing to entries in this
+	// slice.
+	EnumValues []string
+	// ChainedSubcommandValues is a slice of all chained subcommand names. ChainedSubcommandValues generally should
+	//contain each possible value only once. ChainedSubcommands are built by pointing to entries in this slice.
+	ChainedSubcommandValues []string
+	// Suffixes, like EnumValues, is a slice of all suffix values of any command
+	// parameter in the AvailableCommands packet.
+	Suffixes []string
+	// Enums is a slice of all (fixed) command enums present in any of the
+	// commands.
+	Enums []proto.CommandEnum
+	// ChainedSubcommands is a slice of all subcommands that are followed by a chained command. An example usage of this
+	// is /execute which allows you to run another command as another entity or at a different position etc.
+	ChainedSubcommands []proto.ChainedSubcommand
+	// Commands is a list of all commands that the client should show
+	// client-side. The AvailableCommands packet replaces any commands sent
+	// before. It does not only add the commands that are sent in it.
+	Commands []proto.Command
+	// DynamicEnums is a slice of dynamic command enums. These command enums can
+	// be changed during runtime without having to resend an AvailableCommands
+	// packet.
+	DynamicEnums []protocol.DynamicEnum
+	// Constraints is a list of constraints that should be applied to certain
+	// options of enums in the commands above.
+	Constraints []protocol.CommandEnumConstraint
+}
+
+// ID ...
+func (*AvailableCommands) ID() uint32 {
+	return packet.IDAvailableCommands
+}
+
+func (pk *AvailableCommands) Marshal(io protocol.IO) {
+	protocol.FuncSlice(io, &pk.EnumValues, io.String)
+	protocol.FuncSlice(io, &pk.ChainedSubcommandValues, io.String)
+	protocol.FuncSlice(io, &pk.Suffixes, io.String)
+	protocol.FuncIOSlice(io, &pk.Enums, proto.CommandEnumContext{EnumValues: pk.EnumValues}.Marshal)
+	protocol.Slice(io, &pk.ChainedSubcommands)
+	protocol.Slice(io, &pk.Commands)
+	protocol.Slice(io, &pk.DynamicEnums)
+	protocol.Slice(io, &pk.Constraints)
+}

legacyver/legacypacket/command_output.go

@@ -0,0 +1,81 @@
+package legacypacket
+
+import (
+	"github.com/akmalfairuz/legacy-version/legacyver/proto"
+	"github.com/sandertv/gophertunnel/minecraft/protocol"
+	"github.com/sandertv/gophertunnel/minecraft/protocol/packet"
+)
+
+// CommandOutput is sent by the server to the client to send text as output of a command. Most servers do not
+// use this packet and instead simply send Text packets, but there is reason to send it.
+// If the origin of a CommandRequest packet is not the player itself, but, for example, a websocket server,
+// sending a Text packet will not do what is expected: The message should go to the websocket server, not to
+// the client's chat. The CommandOutput packet will make sure the messages are relayed to the correct origin
+// of the command request.
+type CommandOutput struct {
+	// CommandOrigin is the data specifying the origin of the command. In other words, the source that the
+	// command request was from, such as the player itself or a websocket server. The client forwards the
+	// messages in this packet to the right origin, depending on what is sent here.
+	CommandOrigin protocol.CommandOrigin
+	// OutputType specifies the type of output that is sent. The OutputType sent by vanilla games appears to
+	// be 3, which seems to work.
+	OutputType string
+	// SuccessCount is the amount of times that a command was executed successfully as a result of the command
+	// that was requested. For servers, this is usually a rather meaningless fields, but for vanilla, this is
+	// applicable for commands created with Functions.
+	SuccessCount uint32
+	// OutputMessages is a list of all output messages that should be sent to the player. Whether they are
+	// shown or not, depends on the type of the messages.
+	OutputMessages []protocol.CommandOutputMessage
+	// DataSet ... TODO: Find out what this is for.
+	DataSet protocol.Optional[string]
+}
+
+// ID ...
+func (*CommandOutput) ID() uint32 {
+	return packet.IDCommandOutput
+}
+
+func (pk *CommandOutput) Marshal(io protocol.IO) {
+	protocol.CommandOriginData(io, &pk.CommandOrigin)
+	if proto.IsProtoGTE(io, proto.ID898) {
+		io.String(&pk.OutputType)
+	} else {
+		v := getLegacyCommandOutputType(pk.OutputType)
+		io.Uint8(&v)
+		pk.OutputType = getLatestCommandOutputType(v)
+	}
+	io.Uint32(&pk.SuccessCount)
+	protocol.Slice(io, &pk.OutputMessages)
+	if proto.IsProtoGTE(io, proto.ID898) {
+		protocol.OptionalFunc(io, &pk.DataSet, io.String)
+	} else {
+		v, _ := pk.DataSet.Value()
+		io.String(&v)
+		pk.DataSet = protocol.Option(v)
+	}
+}
+
+var legacyCommandOutputTypeMap = map[byte]string{
+	0: packet.CommandOutputTypeNone,
+	1: packet.CommandOutputTypeLastOutput,
+	2: packet.CommandOutputTypeSilent,
+	3: packet.CommandOutputTypeAllOutput,
+	4: packet.CommandOutputTypeDataSet,
+}
+
+func getLegacyCommandOutputType(outputType string) byte {
+	for k, v := range legacyCommandOutputTypeMap {
+		if v == outputType {
+			return k
+		}
+	}
+	return 3 // Default to all output.
+}
+
+func getLatestCommandOutputType(outputType byte) string {
+	if v, ok := legacyCommandOutputTypeMap[outputType]; ok {
+		return v
+	}
+	return packet.CommandOutputTypeAllOutput // Default to all output.
+}

legacyver/legacypacket/command_request.go

@@ -0,0 +1,43 @@
+package legacypacket
+
+import (
+	"github.com/akmalfairuz/legacy-version/internal/typeconf"
+	"github.com/akmalfairuz/legacy-version/legacyver/proto"
+	"github.com/sandertv/gophertunnel/minecraft/protocol"
+	"github.com/sandertv/gophertunnel/minecraft/protocol/packet"
+)
+
+// CommandRequest is sent by the client to request the execution of a server-side command. Although some
+// servers support sending commands using the Text packet, this packet is guaranteed to have the correct
+// result.
+type CommandRequest struct {
+	// CommandLine is the raw entered command line. The client does no parsing of the command line by itself
+	// (unlike it did in the early stages), but lets the server do that.
+	CommandLine string
+	// CommandOrigin is the data specifying the origin of the command. In other words, the source that the
+	// command was from, such as the player itself or a websocket server.
+	CommandOrigin protocol.CommandOrigin
+	// Internal specifies if the command request internal. Setting it to false seems to work and the usage of
+	// this field is not known.
+	Internal bool
+	// Version is the version of the command that is being executed. This field currently has no purpose or functionality.
+	Version string
+}
+
+// ID ...
+func (*CommandRequest) ID() uint32 {
+	return packet.IDCommandRequest
+}
+
+func (pk *CommandRequest) Marshal(io protocol.IO) {
+	io.String(&pk.CommandLine)
+	protocol.CommandOriginData(io, &pk.CommandOrigin)
+	io.Bool(&pk.Internal)
+	if proto.IsProtoGTE(io, proto.ID898) {
+		io.String(&pk.Version)
+	} else {
+		v := typeconf.StringToInt[int32](pk.Version, 0)
+		io.Varint32(&v)
+		pk.Version = typeconf.IntToString[int32](v, "")
+	}
+}

legacyver/legacypacket/event.go

@@ -0,0 +1,39 @@
+package legacypacket
+
+import (
+	"github.com/akmalfairuz/legacy-version/internal/typeconf"
+	"github.com/akmalfairuz/legacy-version/legacyver/proto"
+	"github.com/sandertv/gophertunnel/minecraft/protocol"
+	"github.com/sandertv/gophertunnel/minecraft/protocol/packet"
+)
+
+// Event is sent by the server to send an event with additional data. It is typically sent to the client for
+// telemetry reasons, much like the SimpleEvent packet.
+type Event struct {
+	// EntityRuntimeID is the runtime ID of the player. The runtime ID is unique for each world session, and
+	// entities are generally identified in packets using this runtime ID.
+	EntityRuntimeID int64
+	// UsePlayerID ...
+	// TODO: Figure out what UsePlayerID is for.
+	UsePlayerID bool
+	// Event is the event that is transmitted.
+	Event protocol.Event
+}
+
+// ID ...
+func (*Event) ID() uint32 {
+	return packet.IDEvent
+}
+
+func (pk *Event) Marshal(io protocol.IO) {
+	io.Varint64(&pk.EntityRuntimeID)
+	io.EventType(&pk.Event)
+	if proto.IsProtoGTE(io, proto.ID898) {
+		io.Bool(&pk.UsePlayerID)
+	} else {
+		v := typeconf.BoolToByte(pk.UsePlayerID)
+		io.Uint8(&v)
+		pk.UsePlayerID = typeconf.ByteToBool(v)
+	}
+	pk.Event.Marshal(io)
+}

legacyver/legacypacket/interact.go

@@ -0,0 +1,40 @@
+package legacypacket
+
+import (
+	"github.com/akmalfairuz/legacy-version/legacyver/proto"
+	"github.com/go-gl/mathgl/mgl32"
+	"github.com/sandertv/gophertunnel/minecraft/protocol"
+	"github.com/sandertv/gophertunnel/minecraft/protocol/packet"
+)
+
+// Interact is sent by the client when it interacts with another entity in some way. It used to be used for
+// normal entity and block interaction, but this is no longer the case now.
+type Interact struct {
+	// Action type is the ID of the action that was executed by the player. It is one of the constants that
+	// may be found above.
+	ActionType byte
+	// TargetEntityRuntimeID is the runtime ID of the entity that the player interacted with. This is empty
+	// for the InteractActionOpenInventory action type.
+	TargetEntityRuntimeID uint64
+	// Position associated with the ActionType above. For the InteractActionMouseOverEntity, this is the
+	// position relative to the entity moused over over which the player hovered with its mouse/touch. For the
+	// InteractActionLeaveVehicle, this is the position that the player spawns at after leaving the vehicle.
+	Position protocol.Optional[mgl32.Vec3]
+}
+
+// ID ...
+func (*Interact) ID() uint32 {
+	return packet.IDInteract
+}
+
+func (pk *Interact) Marshal(io protocol.IO) {
+	io.Uint8(&pk.ActionType)
+	io.Varuint64(&pk.TargetEntityRuntimeID)
+	if proto.IsProtoGTE(io, proto.ID898) {
+		protocol.OptionalFunc(io, &pk.Position, io.Vec3)
+	} else {
+		pos, _ := pk.Position.Value()
+		io.Vec3(&pos)
+		pk.Position = protocol.Option(pos)
+	}
+}

legacyver/legacypacket/mob_effect.go

@@ -30,6 +30,8 @@ type MobEffect struct {
 	Duration int32
 	// Tick is the server tick at which the packet was sent. It is used in relation to CorrectPlayerMovePrediction.
 	Tick uint64
+	// Ambient specifies if the effect is ambient. If set to false, it will not get treated as an ambient effect.
+	Ambient bool
 }
 
 // ID ...
@@ -50,5 +52,9 @@ func (pk *MobEffect) Marshal(io protocol.IO) {
 		} else {
 			io.Uint64(&pk.Tick)
 		}
+
+		if proto.IsProtoGTE(io, proto.ID898) {
+			io.Bool(&pk.Ambient)
+		}
 	}
 }

legacyver/legacypacket/resource_pack_stack.go

@@ -13,9 +13,6 @@ type ResourcePackStack struct {
 	// join the server. If set to true, the client gets the option to either download the resource packs and
 	// join, or quit entirely. Behaviour packs never have to be downloaded.
 	TexturePackRequired bool
-	// BehaviourPack is a list of behaviour packs that the client needs to download before joining the server.
-	// All of these behaviour packs will be applied together, and the order does not necessarily matter.
-	BehaviourPacks []protocol.StackResourcePack
 	// TexturePacks is a list of texture packs that the client needs to download before joining the server.
 	// The order of these texture packs specifies the order that they are applied in on the client side. The
 	// first in the list will be applied first.
@@ -41,7 +38,10 @@ func (*ResourcePackStack) ID() uint32 {
 
 func (pk *ResourcePackStack) Marshal(io protocol.IO) {
 	io.Bool(&pk.TexturePackRequired)
-	protocol.Slice(io, &pk.BehaviourPacks)
+	if proto.IsProtoLT(io, proto.ID898) {
+		var emptyResourcePack []protocol.StackResourcePack
+		protocol.Slice(io, &emptyResourcePack)
+	}
 	protocol.Slice(io, &pk.TexturePacks)
 	io.String(&pk.BaseGameVersion)
 	protocol.SliceUint32Length(io, &pk.Experiments)

legacyver/legacypacket/start_game.go

@@ -238,8 +238,6 @@ type StartGame struct {
 	// its index in the expected block palette. This is useful for servers that wish to support multiple protocol versions
 	// and custom blocks, but it will result in extra bytes being written for every block in a sub chunk palette.
 	UseBlockNetworkIDHashes bool
-	// TickDeathSystemsEnabled specifies if the new tick death systems are enabled.
-	TickDeathSystemsEnabled bool
 	// ServerAuthoritativeSound is currently unknown as to what it does.
 	ServerAuthoritativeSound bool
 }
@@ -338,8 +336,9 @@ func (pk *StartGame) Marshal(io protocol.IO) {
 	io.UUID(&pk.WorldTemplateID)
 	io.Bool(&pk.ClientSideGeneration)
 	io.Bool(&pk.UseBlockNetworkIDHashes)
-	if proto.IsProtoGTE(io, proto.ID827) {
-		io.Bool(&pk.TickDeathSystemsEnabled)
+	if proto.IsProtoGTE(io, proto.ID827) && proto.IsProtoLT(io, proto.ID898) {
+		v := false
+		io.Bool(&v)
 	}
 	io.Bool(&pk.ServerAuthoritativeSound)
 }

legacyver/legacypacket/text.go

@@ -50,7 +50,7 @@ type Text struct {
 	PlatformChatID string
 	// FilteredMessage is a filtered version of Message with all the profanity removed. The client will use
 	// this over Message if this field is not empty and they have the "Filter Profanity" setting enabled.
-	FilteredMessage string
+	FilteredMessage protocol.Optional[string]
 }
 
 // ID ...
@@ -59,8 +59,21 @@ func (*Text) ID() uint32 {
 }
 
 func (pk *Text) Marshal(io protocol.IO) {
-	io.Uint8(&pk.TextType)
+	if proto.IsProtoLT(io, proto.ID898) {
+		io.Uint8(&pk.TextType)
+	}
 	io.Bool(&pk.NeedsTranslation)
+	if proto.IsProtoGTE(io, proto.ID898) {
+		var categoryType uint8
+		if pk.TextType == TextTypeRaw || pk.TextType == TextTypeTip || pk.TextType == TextTypeSystem || pk.TextType == TextTypeObjectWhisper || pk.TextType == TextTypeObjectAnnouncement || pk.TextType == TextTypeObject {
+			categoryType = protocol.TextCategoryMessageOnly
+		} else if pk.TextType == TextTypeChat || pk.TextType == TextTypeWhisper || pk.TextType == TextTypeAnnouncement {
+			categoryType = protocol.TextCategoryAuthoredMessage
+		} else {
+			categoryType = protocol.TextCategoryMessageWithParameters
+		}
+		io.TextCategory(&categoryType)
+	}
 	switch pk.TextType {
 	case TextTypeChat, TextTypeWhisper, TextTypeAnnouncement:
 		io.String(&pk.SourceName)
@@ -74,6 +87,12 @@ func (pk *Text) Marshal(io protocol.IO) {
 	io.String(&pk.XUID)
 	io.String(&pk.PlatformChatID)
 	if proto.IsProtoGTE(io, proto.ID685) {
-		io.String(&pk.FilteredMessage)
+		if proto.IsProtoGTE(io, proto.ID898) {
+			protocol.OptionalFunc(io, &pk.FilteredMessage, io.String)
+		} else {
+			v, _ := pk.FilteredMessage.Value()
+			io.String(&v)
+			pk.FilteredMessage = protocol.Option(v)
+		}
 	}
 }