docs: add godoc comments to all exported functions and methods

- Server sends v26_2 login_success with SessionId for protocol >= 776

- Client adds v26_2 login_success handler and scopes v1_21_8 handler to <= 26.1

- Fix WithOtherAccount guard in login server

- Add smart-convert assumption tests for login server/client

- Improve translatePacketVersion error messages

cmd/strom/main.go

@@ -19,6 +19,7 @@ import (
 	"github.com/admin-else/strom/cmd/strom/packet_inspector"
 	"github.com/admin-else/strom/cmd/strom/print_nbt"
 	"github.com/admin-else/strom/cmd/strom/print_replay"
+	"github.com/admin-else/strom/cmd/strom/raw_capture"
 	"github.com/admin-else/strom/cmd/strom/registry_data_hunter"
 	"github.com/admin-else/strom/cmd/strom/serve_tmcpr"
 	"github.com/admin-else/strom/cmd/strom/serve_world"
@@ -60,6 +61,7 @@ var subcommands = map[string]func(args []string) error{
 	"extract-mca":          extract_mca.Run,
 	"data":                 data.Run,
 	"print-replay":         print_replay.Run,
+	"raw-capture":          raw_capture.Run,
 	"registry-data-hunter": registry_data_hunter.Run,
 	"serve-world":          serve_world.Run,
 	"mca-to-tmcpr":         mca_to_tmcpr.Run,

cmd/strom/print_replay/failed_packet.go.tmpl

@@ -4,7 +4,7 @@ import (
 	"bytes"
 	"testing"
 
-    generated "github.com/admin-else/strom/proto_generated/%v"
+    generated "github.com/admin-else/strom/mc/proto_generated/%v"
 )
 
 // Error: %v

cmd/strom/print_replay/main.go

@@ -8,6 +8,7 @@ import (
 	"errors"
 	"flag"
 	"fmt"
+	"go/format"
 	"io"
 	"log/slog"
 	"os"
@@ -25,6 +26,7 @@ var (
 	ProtocolVersion = cmd.Int("protocol", -1, "The protocol version")
 	CreateTestsPath = cmd.String("create-tests", "", "")
 	StateFlag       = cmd.String("state", "login", "Initial state: login, config, play")
+	DirectionFlag   = cmd.String("direction", "clientbound", "Packet direction: clientbound (ToClient) or serverbound (ToServer)")
 )
 
 // TODO: maybe use the proto replay api
@@ -32,32 +34,43 @@ var (
 //go:embed failed_packet.go.tmpl
 var TestSrcF string
 
-func SaveUnCodeAbleAsTest(packet *proto.UnCodablePacket) {
+func SaveUnCodeAbleAsTest(packet *proto.UnCodablePacket) (err error) {
+	if packet.Info.Type == nil {
+		slog.Warn("skipping test for unknown packet id", "packet_id", packet.Info.PacketId, "state", packet.Info.State, "error", packet.Err)
+		return
+	}
+
 	hUntrimmed := sha256.Sum256(packet.Data)
 	h := hUntrimmed[:8]
-	f, err := os.Create(fmt.Sprintf(*CreateTestsPath+"/%v_%10x_test.go", len(packet.Data), h))
+	if err = os.MkdirAll(*CreateTestsPath, 0755); err != nil {
-	if err != nil {
+		return
-		panic(err)
 	}
 
 	ret, err := data.LookUpVersionByProtocolVersion(packet.Info.ProtocolVersion)
 	if err != nil {
-		panic(err)
+		return
 	}
 	goPackage := "v" + strings.ReplaceAll(ret.MinecraftVersion, ".", "_")
+	typeName := reflect.TypeOf(packet.Info.Type).Elem().Name()
 
-	//goland:noinspection GoUnhandledErrorResult
+	src := fmt.Sprintf(TestSrcF, goPackage, packet.Err, h, typeName, packet.Data)
-	defer f.Close()
+	formatted, formatErr := format.Source([]byte(src))
-	_, err = fmt.Fprintf(f, TestSrcF, goPackage, packet.Err, h, reflect.TypeOf(packet.Info.Type).Elem().Name(), packet.Data)
+	if formatErr != nil {
-	if err != nil {
+		formatted = []byte(src)
-		panic(err)
 	}
-	slog.Info("Packet failed to parse", "error", packet.Err, "saved", f.Name(), "data", fmt.Sprintf("%q", packet.Data))
+
+	filePath := fmt.Sprintf(*CreateTestsPath+"/%v_%10x_test.go", len(packet.Data), h)
+	if err = os.WriteFile(filePath, formatted, 0644); err != nil {
+		return
+	}
+	slog.Info("Packet failed to parse", "error", packet.Err, "saved", filePath, "data", fmt.Sprintf("%q", packet.Data))
+	return
 }
 
 var state = proto_base.Login
+var direction = proto_base.ToClient
 
-func UnpackPacket(r io.Reader) (packet proto_base.EncodeDecodeAble, err error) {
+func UnpackPacket(r io.Reader) (packet proto_base.EncodeDecodeAble, i proto_base.PacketInfo, err error) {
 	var timestamp, length uint32
 	err = binary.Read(r, binary.BigEndian, &timestamp)
 	if err != nil {
@@ -87,22 +100,37 @@ func UnpackPacket(r io.Reader) (packet proto_base.EncodeDecodeAble, err error) {
 	// indexafterid represents how many bytes we've read so far
 	indexafterid := int(b.Size()) - b.Len()
 
-	i, ok := proto.LookUpTypeByPacketInfo(proto_base.ToClient, state, packetId, int32(*ProtocolVersion))
+	var ok bool
+	i, ok = proto.LookUpTypeByPacketInfo(direction, state, packetId, int32(*ProtocolVersion))
 	if !ok {
 		packet = &proto.UnCodablePacket{Err: proto.BadPacketIdErr, Data: packetData, Info: i}
 		return
 	}
+	switch direction {
+	case proto_base.ToClient:
+		switch i.Name {
+		case "success":
+			state = proto_base.Configuration
+		case "finish_configuration":
+			state = proto_base.Play
+		}
+	case proto_base.ToServer:
+		switch i.Name {
+		case "login_acknowledged":
+			state = proto_base.Configuration
+		case "finish_configuration":
+			state = proto_base.Play
+		}
+	}
 	packet = reflect.New(reflect.TypeOf(i.Type).Elem()).Interface().(proto_base.EncodeDecodeAble)
 	err = packet.Decode(b)
 	if err != nil {
 		packet = &proto.UnCodablePacket{Err: err, Data: packetData[indexafterid:], Info: i}
 		return
 	}
-	switch i.Name {
+	if b.Len() != 0 {
-	case "success":
+		packet = &proto.UnCodablePacket{Err: proto.PacketNotFullyDecodedErr, Data: packetData[indexafterid:], Info: i}
-		state = proto_base.Configuration
+		return
-	case "finish_configuration":
-		state = proto_base.Play
 	}
 	return
 }
@@ -128,6 +156,14 @@ func Run(args []string) (err error) {
 	default:
 		return fmt.Errorf("unknown state: %s", *StateFlag)
 	}
+	switch *DirectionFlag {
+	case "clientbound", "to-client":
+		direction = proto_base.ToClient
+	case "serverbound", "to-server":
+		direction = proto_base.ToServer
+	default:
+		return fmt.Errorf("unknown direction: %s", *DirectionFlag)
+	}
 	f, err := os.Open(*FileFlag)
 	if err != nil {
 		return
@@ -137,21 +173,22 @@ func Run(args []string) (err error) {
 	var totalPackets, failedPackets int
 	for {
 		var packet proto_base.EncodeDecodeAble
-		packet, err = UnpackPacket(f)
+		var info proto_base.PacketInfo
+		packet, info, err = UnpackPacket(f)
 		unCodablePacket, ok := packet.(*proto.UnCodablePacket)
 		if ok {
+			slog.Error("failed to decode packet", "error", err, "packet_name", info.Name)
 			if *CreateTestsPath != "" {
-				SaveUnCodeAbleAsTest(unCodablePacket)
+				err = SaveUnCodeAbleAsTest(unCodablePacket)
+				if err != nil {
+					slog.Error("failed to save uncodable packet as test", "error", err)
+				}
 			}
 			failedPackets++
 		}
 
-		if err != nil {
-			fmt.Println(err)
-		} else {
 		fmt.Printf("Packet: %#v\n", packet)
-		}
+		if errors.Is(err, io.EOF) || errors.Is(err, io.ErrUnexpectedEOF) {
-		if errors.Is(err, io.EOF) {
 			break
 		}
 		totalPackets++

cmd/strom/raw_capture/main.go

@@ -0,0 +1,253 @@
+package raw_capture
+
+import (
+	"flag"
+	"fmt"
+	"log/slog"
+	"os"
+	"time"
+
+	"github.com/admin-else/strom/mc/api"
+	"github.com/admin-else/strom/mc/client"
+	"github.com/admin-else/strom/mc/data"
+	"github.com/admin-else/strom/mc/event"
+	"github.com/admin-else/strom/mc/proto"
+	"github.com/admin-else/strom/mc/proto/replay"
+	"github.com/admin-else/strom/mc/proto_base"
+	"github.com/admin-else/strom/mc/proto_generated/v1_21_11"
+	"github.com/admin-else/strom/mc/server"
+	"github.com/admin-else/strom/mc/text"
+)
+
+var Cmd = flag.NewFlagSet("raw-capture", flag.ContinueOnError)
+
+var OfflineNameFlag = Cmd.String("name", "raw_capture", "offline player name")
+var Token = Cmd.String("token", "", "token to use")
+
+var TargetAddr = Cmd.String("addr", "127.0.0.1:25565", "address to connect to")
+var ListenAddr = Cmd.String("listen", "127.0.0.1:25566", "address to listen on")
+var ClientboundFile = Cmd.String("clientbound-file", "clientbound.tmcpr", "file to write clientbound packets to")
+var ServerboundFile = Cmd.String("serverbound-file", "serverbound.tmcpr", "file to write serverbound packets to")
+var Version = Cmd.String("version", "", "client protocol version (e.g. 26.1); if empty, detect from server status")
+
+var StatusResponse = server.StatusResponse{
+	Version: server.StatusResponseVersion{
+		Name:     text.Pretty("STROM raw-capture"),
+		Protocol: 0,
+	},
+	Players:            server.StatusResponsePlayers{},
+	Description:        text.Pretty("STROM raw-capture proxy"),
+	Favicon:            "",
+	EnforcesSecureChat: false,
+}
+
+type Proxy struct {
+	Client, Servee *proto.Conn
+
+	clientboundFile *os.File
+	serverboundFile *os.File
+
+	clientboundWriter *replay.Writer
+	serverboundWriter *replay.Writer
+
+	startTime time.Time
+}
+
+func (p *Proxy) Start() (err error) {
+	p.startTime = time.Now()
+
+	p.Client.RegisterCritical(p.OnAnything)
+	p.Servee.RegisterCritical(p.OnAnything)
+
+	p.Client.RegisterCriticalUntilLatest(p.OnCompress)
+	p.Servee.RegisterCriticalUntilLatest(p.OnHandshake)
+	p.Servee.RegisterCriticalUntilLatest(p.OnLoginAcknowledged)
+	p.Servee.RegisterCriticalUntilLatest(p.OnFinishConfiguration)
+
+	errChan := make(chan error)
+	go func() {
+		errChan <- p.Client.StartConn()
+	}()
+	go func() {
+		errChan <- p.Servee.StartConn()
+	}()
+	err = <-errChan
+	return
+}
+
+func (p *Proxy) timestamp() uint32 {
+	return uint32(time.Since(p.startTime).Milliseconds())
+}
+
+func (p *Proxy) OnAnything(e event.Anything) (err error) {
+	packet, ok := e.Val.(proto_base.EncodeDecodeAble)
+	if !ok {
+		return
+	}
+
+	packetInfo, ok := proto.LookupPacketInfoByType(packet)
+	if !ok {
+		return
+	}
+
+	if packetInfo.Name == "encryption_begin" {
+		return fmt.Errorf("encryption requested by remote server; raw capture cannot continue")
+	}
+
+	switch packetInfo.Direction {
+	case proto_base.ToServer:
+		err = p.serverboundWriter.WritePacket(packet, p.timestamp())
+		if err != nil {
+			return
+		}
+		err = p.Client.Send(packet)
+	case proto_base.ToClient:
+		err = p.clientboundWriter.WritePacket(packet, p.timestamp())
+		if err != nil {
+			return
+		}
+		err = p.Servee.Send(packet)
+	}
+	return
+}
+
+func (p *Proxy) OnCompress(packet *v1_21_11.LoginToClientPacketCompress) (err error) {
+	err = p.clientboundWriter.WritePacket(packet, p.timestamp())
+	if err != nil {
+		return
+	}
+	err = p.Servee.Send(packet)
+	if err != nil {
+		return
+	}
+	p.Servee.SetCompressionThreshold(packet.Threshold)
+	p.Client.SetCompressionThreshold(packet.Threshold)
+	return event.DontForwardErr
+}
+
+func (p *Proxy) OnHandshake(packet *v1_21_11.HandshakingToServerPacketSetProtocol) (err error) {
+	state := proto_base.State(packet.NextState)
+	p.Servee.SetState(state)
+	return event.DontForwardErr
+}
+
+func (p *Proxy) OnLoginAcknowledged(packet *v1_21_11.LoginToServerPacketLoginAcknowledged) (err error) {
+	err = p.serverboundWriter.WritePacket(packet, p.timestamp())
+	if err != nil {
+		return
+	}
+	err = p.Client.Send(packet)
+	if err != nil {
+		return
+	}
+	p.Servee.SetState(proto_base.Configuration)
+	p.Client.SetState(proto_base.Configuration)
+	return event.DontForwardErr
+}
+
+func (p *Proxy) OnFinishConfiguration(packet *v1_21_11.ConfigurationToServerPacketFinishConfiguration) (err error) {
+	err = p.serverboundWriter.WritePacket(packet, p.timestamp())
+	if err != nil {
+		return
+	}
+	err = p.Client.Send(packet)
+	if err != nil {
+		return
+	}
+	p.Servee.SetState(proto_base.Play)
+	p.Client.SetState(proto_base.Play)
+	return event.DontForwardErr
+}
+
+func Run(args []string) (err error) {
+	err = Cmd.Parse(args)
+	if err != nil {
+		return
+	}
+
+	clientboundFile, err := os.Create(*ClientboundFile)
+	if err != nil {
+		return fmt.Errorf("create clientbound file: %w", err)
+	}
+	defer clientboundFile.Close()
+
+	serverboundFile, err := os.Create(*ServerboundFile)
+	if err != nil {
+		return fmt.Errorf("create serverbound file: %w", err)
+	}
+	defer serverboundFile.Close()
+
+	resolvedAddr, _, _, err := client.DoDNSChecked(nil, *TargetAddr, nil)
+	if err != nil {
+		return
+	}
+
+	var targetVersion string
+	var targetProtocol int32
+	if *Version == "" {
+		status, err := client.Status(nil, resolvedAddr)
+		if err != nil {
+			return fmt.Errorf("failed to detect server version: %w", err)
+		}
+		targetProtocol = status.Version.Protocol
+		versionInfo, err := data.LookUpVersionByProtocolVersion(targetProtocol)
+		if err != nil {
+			return fmt.Errorf("unknown protocol version %d: %w", targetProtocol, err)
+		}
+		targetVersion = versionInfo.MinecraftVersion
+	} else {
+		versionInfo, err := data.LookUpVersionByName(*Version)
+		if err != nil {
+			return fmt.Errorf("unknown version %s: %w", *Version, err)
+		}
+		targetVersion = versionInfo.MinecraftVersion
+		targetProtocol = versionInfo.Version
+	}
+
+	StatusResponse.Version.Name = text.Pretty("STROM raw-capture " + targetVersion)
+	StatusResponse.Version.Protocol = targetProtocol
+	StatusResponse.Description = text.Pretty(fmt.Sprintf("Raw capture proxy forwards to %s (%s)", resolvedAddr, targetVersion))
+
+	slog.Info("Starting raw capture", "listen", *ListenAddr, "target", resolvedAddr, "version", targetVersion, "protocol", targetProtocol, "clientbound", *ClientboundFile, "serverbound", *ServerboundFile)
+
+	err = server.StartServerWithOnConn(*ListenAddr, func(serveeConn *proto.Conn) (err error) {
+		proxy := &Proxy{
+			Servee:            serveeConn,
+			clientboundFile:   clientboundFile,
+			serverboundFile:   serverboundFile,
+			clientboundWriter: replay.NewWriter(clientboundFile),
+			serverboundWriter: replay.NewWriter(serverboundFile),
+		}
+
+		acc := api.NewOfflineAccount(*OfflineNameFlag)
+		if *Token != "" {
+			acc, err = api.NewAccountFromYGG(*Token)
+			if err != nil {
+				return
+			}
+		}
+
+		_, err = server.ServeLogin(serveeConn, server.WithOtherAccount(acc), server.WithStatus(StatusResponse), server.WithoutOnlineMode(), server.WithoutEncryption())
+		if err != nil {
+			return
+		}
+
+		c, err := client.Connect(nil, resolvedAddr, targetVersion)
+		if err != nil {
+			return
+		}
+		defer c.Close()
+
+		err = client.LoginRaw(c, acc)
+		if err != nil {
+			return
+		}
+
+		proxy.Client = c
+		proxy.Client.AlwaysDecode = true
+		proxy.Servee.AlwaysDecode = true
+
+		return proxy.Start()
+	})
+	return
+}

mc/api/api.go

@@ -289,6 +289,9 @@ func (a *Account) CheckGiftCodeValidity(giftCode string) (valid bool, err error)
 	return
 }
 
+// NewAccountFromYGG creates an Account by authenticating the YGG token against
+// Mojang's API. It makes an HTTP call to fetch the player profile and returns
+// an Account with name and UUID populated, or an error if authentication fails.
 func NewAccountFromYGG(ygg string) (a *Account, err error) {
 	a = &Account{
 		Ygg:     ygg,
@@ -303,6 +306,8 @@ func NewAccountFromYGG(ygg string) (a *Account, err error) {
 	return
 }
 
+// NewAccount creates an Account from explicit name, UUID, and YGG token without
+// making any HTTP calls. The account uses Mojang's default API servers.
 func NewAccount(name string, uuid uuid.UUID, ygg string) (a *Account) {
 	return &Account{
 		Name:    name,

mc/api/offline.go

@@ -4,6 +4,8 @@ import (
 	"github.com/admin-else/strom/mc/crypto"
 )
 
+// NewOfflineAccount creates an offline-mode Account with a UUID derived from the
+// player name. No HTTP calls are made; the UUID is computed locally.
 func NewOfflineAccount(name string) *Account {
 	return &Account{
 		Name: name,

mc/api/unauthenticated.go

@@ -9,6 +9,8 @@ import (
 	"strings"
 )
 
+// BlockedServers fetches the list of SHA-1 hashes of blocked server IPs from
+// Mojang's session server. The returned strings are hex-encoded hashes.
 func BlockedServers() (s []string, err error) {
 	resp, err := http.Get("https://sessionserver.mojang.com/blockedservers")
 	if err != nil {
@@ -36,6 +38,9 @@ type ProfileResp struct {
 	Properties []ProfileProperty `json:"properties"`
 }
 
+// HasJoined checks with Mojang's session server whether a player has joined a
+// given server. name is the player name, server is the server hash, and ip is
+// the optional player IP address. Returns the player's profile on success.
 func HasJoined(name, server, ip string) (p ProfileResp, err error) {
 	url := "https://sessionserver.mojang.com/session/minecraft/hasJoined?username=" + name + "&serverId=" + server
 	if ip != "" {
@@ -62,6 +67,8 @@ type MojangPublicKeysResp struct {
 	AuthenticationKeys []string `json:"authenticationKeys"`
 }
 
+// MojangPublicKeys fetches Mojang's public keys for profile property signing and
+// player certificate verification from the session server.
 func MojangPublicKeys() (keys MojangPublicKeysResp, err error) {
 	resp, err := http.Get("https://sessionserver.mojang.com/session/minecraft/profile/public_key_by_token")
 	if err != nil {
@@ -72,6 +79,8 @@ func MojangPublicKeys() (keys MojangPublicKeysResp, err error) {
 	return
 }
 
+// Profile fetches a player's profile by UUID from Mojang's session server.
+// If unsigned is false, signed profile properties are included in the response.
 func Profile(id string, unsinged bool) (p ProfileResp, err error) {
 	url := "https://sessionserver.mojang.com/session/minecraft/profile/" + id
 	if !unsinged {
@@ -91,6 +100,8 @@ type IdName struct {
 	Name string `json:"name"`
 }
 
+// NameToId resolves a Minecraft player name to a UUID and canonical name by
+// making an HTTP GET to Mojang's API.
 func NameToId(name string) (idName IdName, err error) {
 	// may also use these:
 	//https://api.mojang.com/users/profiles/minecraft/<player name>
@@ -105,6 +116,8 @@ func NameToId(name string) (idName IdName, err error) {
 	return
 }
 
+// NameToIdBulk resolves multiple Minecraft player names to UUIDs and canonical
+// names in a single HTTP POST to Mojang's API.
 func NameToIdBulk(names []string) (idNames []IdName, err error) {
 	b := bytes.NewBuffer(nil)
 	err = json.NewEncoder(b).Encode(names)

mc/bot/keepalive/mod.go

@@ -13,6 +13,7 @@ func (m *mod) onKeepAlive(p *v1_21_8.PlayToClientPacketKeepAlive) (err error) {
 	return m.Send(&v1_21_8.PlayToServerPacketKeepAlive{KeepAliveId: p.KeepAliveId})
 }
 
+// Start begins responding to keep-alive packets on the connection.
 func Start(c *proto.Conn) {
 	m := &mod{Conn: c}
 	m.RegisterUntilLatest(m.onKeepAlive)

mc/client/config_ignorer.go

@@ -47,6 +47,7 @@ func (c *ConfigIgnorer) OnKeepAlive(packet *v1_21_8.ConfigurationToClientPacketK
 	return
 }
 
+// IgnoreConfig acknowledges configuration packets on the connection and transitions it to the Play state once configuration is complete.
 func IgnoreConfig(c *proto.Conn) (err error) {
 	ci := &ConfigIgnorer{c}
 	ci.RegisterCritical(ci.Default)

mc/client/handshake_packet.go

@@ -9,6 +9,7 @@ import (
 	"github.com/admin-else/strom/mc/proto_generated/v1_21_8"
 )
 
+// MakeHandshakePacket creates a handshake packet using the connection's remote address as the server host.
 func MakeHandshakePacket(c *proto.Conn, nextState proto_base.State) (p *v1_21_8.HandshakingToServerPacketSetProtocol, err error) {
 	return MakeHandshakePacketAddr(c, nextState, c.RemoteAddr().String())
 }

mc/client/login.go

@@ -14,6 +14,7 @@ import (
 	"github.com/admin-else/strom/mc/proto"
 	"github.com/admin-else/strom/mc/proto_base"
 	"github.com/admin-else/strom/mc/proto_generated/v1_21_8"
+	"github.com/admin-else/strom/mc/proto_generated/v26_2"
 	"github.com/admin-else/strom/mc/text"
 )
 
@@ -121,10 +122,19 @@ func (s *LoginClient) OnSuccess(success *v1_21_8.LoginToClientPacketSuccess) (er
 	return
 }
 
+func (s *LoginClient) OnSuccess26_2(success *v26_2.LoginToClientPacketSuccess) (err error) {
+	return s.OnSuccess(&v1_21_8.LoginToClientPacketSuccess{
+		Uuid:       success.Uuid,
+		Username:   success.Username,
+		Properties: success.Properties,
+	})
+}
+
 func (s *LoginClient) OnStart() (err error) {
 	return
 }
 
+// LoginRaw performs the login handshake on an already-established connection without DNS resolution or configuration handling.
 func LoginRaw(c *proto.Conn, account *api.Account) (err error) {
 	lc := &LoginClient{
 		Conn:    c,
@@ -135,7 +145,8 @@ func LoginRaw(c *proto.Conn, account *api.Account) (err error) {
 	lc.RegisterCriticalUntilLatest(lc.OnCompress)
 	lc.RegisterCriticalUntilLatest(lc.OnEncrypt)
 	lc.RegisterCriticalUntilLatest(lc.OnDisconnect)
-	lc.RegisterCriticalUntilLatest(lc.OnSuccess)
+	lc.RegisterCriticalUntil("26.1", lc.OnSuccess)
+	lc.RegisterCriticalUntilLatest(lc.OnSuccess26_2)
 
 	p, err := MakeHandshakePacket(lc.Conn, proto_base.Login)
 	if err != nil {
@@ -156,18 +167,21 @@ func LoginRaw(c *proto.Conn, account *api.Account) (err error) {
 	return
 }
 
+// WithoutDns returns a login setting that disables SRV DNS resolution during login.
 func WithoutDns() func(ls *loginSettings) {
 	return func(ls *loginSettings) {
 		ls.NoDns = true
 	}
 }
 
+// WithContext returns a login setting that sets the context used for the connection dial and DNS resolution.
 func WithContext(ctx context.Context) func(ls *loginSettings) {
 	return func(ls *loginSettings) {
 		ls.Ctx = ctx
 	}
 }
 
+// WithVersion returns a login setting that forces a specific Minecraft version string for the connection.
 func WithVersion(version string) func(ls *loginSettings) {
 	return func(ls *loginSettings) {
 		ls.Version = version
@@ -181,6 +195,7 @@ type loginSettings struct {
 	IgnoreConfig bool
 }
 
+// Login resolves the address with SRV DNS, connects, performs the login handshake, and handles the configuration phase, returning an authenticated connection ready for play.
 func Login(connectTo string, account *api.Account, settings ...func(ls *loginSettings)) (c *proto.Conn, err error) {
 	ls := &loginSettings{}
 

mc/client/login_test.go

@@ -0,0 +1,55 @@
+package client_test
+
+import (
+	"reflect"
+	"testing"
+
+	"github.com/admin-else/strom/mc/data"
+	"github.com/admin-else/strom/mc/proto"
+	"github.com/admin-else/strom/mc/proto_base"
+	"github.com/admin-else/strom/mc/proto_generated/v1_21_8"
+)
+
+func assertClientSendConvertible(t *testing.T, srcType reflect.Type, name string, state proto_base.State, direction proto_base.Direction, targetVersion int32) {
+	t.Helper()
+	targetInfo, ok := proto.LookupPacketInfoByNameProtocolVersionStateAndDirection(name, targetVersion, state, direction)
+	if !ok {
+		t.Fatalf("packet %s not found for version %d", name, targetVersion)
+	}
+	targetType := reflect.TypeOf(targetInfo.Type)
+	if !proto.SmartConvertibleTo(srcType, targetType) {
+		t.Fatalf("%s is not smart-convertible from v1_21_8 to version %d", name, targetVersion)
+	}
+}
+
+func assertClientReceiveConvertible(t *testing.T, dstType reflect.Type, name string, state proto_base.State, direction proto_base.Direction, targetVersion int32) {
+	t.Helper()
+	targetInfo, ok := proto.LookupPacketInfoByNameProtocolVersionStateAndDirection(name, targetVersion, state, direction)
+	if !ok {
+		t.Fatalf("packet %s not found for version %d", name, targetVersion)
+	}
+	targetType := reflect.TypeOf(targetInfo.Type)
+	if !proto.SmartConvertibleTo(targetType, dstType) {
+		t.Fatalf("%s is not smart-convertible from version %d to v1_21_8", name, targetVersion)
+	}
+}
+
+func TestLoginClientSendAssumptions(t *testing.T) {
+	v26_1Version := data.MustLookupProtocolVersion("26.1")
+
+	// Packets sent by LoginClient as v1_21_8.
+	assertClientSendConvertible(t, reflect.TypeFor[*v1_21_8.HandshakingToServerPacketSetProtocol](), "set_protocol", proto_base.Handshaking, proto_base.ToServer, v26_1Version)
+	assertClientSendConvertible(t, reflect.TypeFor[*v1_21_8.LoginToServerPacketLoginStart](), "login_start", proto_base.Login, proto_base.ToServer, v26_1Version)
+	assertClientSendConvertible(t, reflect.TypeFor[*v1_21_8.LoginToServerPacketLoginAcknowledged](), "login_acknowledged", proto_base.Login, proto_base.ToServer, v26_1Version)
+	assertClientSendConvertible(t, reflect.TypeFor[*v1_21_8.LoginToServerPacketEncryptionBegin](), "encryption_begin", proto_base.Login, proto_base.ToServer, v26_1Version)
+}
+
+func TestLoginClientReceiveAssumptions(t *testing.T) {
+	v26_1Version := data.MustLookupProtocolVersion("26.1")
+
+	// Packets received by LoginClient via RegisterCriticalUntilLatest.
+	// login_success is excluded because 26.2 is not convertible.
+	assertClientReceiveConvertible(t, reflect.TypeFor[*v1_21_8.LoginToClientPacketCompress](), "compress", proto_base.Login, proto_base.ToClient, v26_1Version)
+	assertClientReceiveConvertible(t, reflect.TypeFor[*v1_21_8.LoginToClientPacketEncryptionBegin](), "encryption_begin", proto_base.Login, proto_base.ToClient, v26_1Version)
+	assertClientReceiveConvertible(t, reflect.TypeFor[*v1_21_8.LoginToClientPacketDisconnect](), "disconnect", proto_base.Login, proto_base.ToClient, v26_1Version)
+}

mc/crypto/cfb8.go

@@ -41,10 +41,12 @@ type CFB8 struct {
 	mutex     sync.Mutex
 }
 
+// NewCFB8Decrypt creates a new CFB8 stream cipher in decrypt mode.
 func NewCFB8Decrypt(c cipher.Block, iv []byte) *CFB8 {
 	return newCFB8(c, iv, true)
 }
 
+// NewCFB8Encrypt creates a new CFB8 stream cipher in encrypt mode.
 func NewCFB8Encrypt(c cipher.Block, iv []byte) *CFB8 {
 	return newCFB8(c, iv, false)
 }

mc/crypto/offline.go

@@ -21,6 +21,7 @@ func uuidV3(space []byte, data []byte) uuid.UUID {
 	return u
 }
 
+// FromOfflinePlayer generates a UUID for an offline-mode (cracked) player from their display name.
 func FromOfflinePlayer(displayName string) uuid.UUID {
 	return uuidV3([]byte("OfflinePlayer:"), []byte(displayName))
 }

mc/data/biomes.go

@@ -28,6 +28,7 @@ type Biome struct {
 
 var BiomesCache = make(map[string][]*Biome)
 
+// BiomesForVersion returns the biome definitions for the given Minecraft version, caching them after the first load.
 func BiomesForVersion(v string) (ret []*Biome) {
 	var ok bool
 	if ret, ok = BiomesCache[v]; ok {
@@ -39,6 +40,7 @@ func BiomesForVersion(v string) (ret []*Biome) {
 	return b
 }
 
+// LookupBiomeById returns the biome with the given numeric ID in the given version.
 func LookupBiomeById(version string, id int32) (biome *Biome, ok bool) {
 	for _, b := range BiomesForVersion(version) {
 		if b.Id == id {
@@ -52,6 +54,7 @@ func LookupBiomeById(version string, id int32) (biome *Biome, ok bool) {
 
 var UnknownBiomeNameErr = errors.New("unknown biome Name")
 
+// LookupBiomeByName returns the biome with the given name in the given version.
 func LookupBiomeByName(version string, name string) (biome *Biome, ok bool) {
 	for _, b := range BiomesForVersion(version) {
 		if b.Name == name {

mc/data/blocks.go

@@ -59,6 +59,7 @@ type BlockState struct {
 var BlocksCache = make(map[string][]*Block)
 var BlocksCacheIdMap = make(map[string]map[int32]*Block)
 
+// BlocksForVersion returns the block definitions for the given Minecraft version, caching them after the first load.
 func BlocksForVersion(v string) (ret []*Block) {
 	var ok bool
 	if ret, ok = BlocksCache[v]; ok {
@@ -84,6 +85,7 @@ func BlocksForVersion(v string) (ret []*Block) {
 	return b
 }
 
+// LookupBlockByStateId returns the block for the given global palette state ID in the given version.
 func LookupBlockByStateId(version string, stateId int32) (block *Block, ok bool) {
 	idmap, found := BlocksCacheIdMap[version]
 	if !found {
@@ -101,6 +103,7 @@ func LookupBlockByStateId(version string, stateId int32) (block *Block, ok bool)
 
 var UnknownBlockNameErr = errors.New("unknown block Name")
 
+// LookupBlockByName returns the block with the given name in the given version.
 func LookupBlockByName(version string, name string) (block *Block, ok bool) {
 	for _, b := range BlocksForVersion(version) {
 		if b.Name == name {
@@ -111,6 +114,7 @@ func LookupBlockByName(version string, name string) (block *Block, ok bool) {
 	return
 }
 
+// StateIdFromBlocKAndStateMap returns the global palette state ID for the given block name and state property map in the given version.
 func StateIdFromBlocKAndStateMap(version string, name string, stateMap map[string]string) (stateId int32, err error) {
 	b, ok := LookupBlockByName(version, name)
 	if !ok {
@@ -135,6 +139,7 @@ var BadBlockStateTypeErr = errors.New("bad block state type")
 var BadEnumErr = errors.New("bad enum")
 var SupplyAllStatesErr = errors.New("supply all states")
 
+// FromBlockState converts a global palette state ID back into a block definition and a map of state properties.
 func FromBlockState(version string, stateId int32) (b *Block, stateData map[string]string, err error) {
 	b, ok := LookupBlockByStateId(version, stateId)
 	if !ok {

mc/data/copy_local_minecraft_data.sh

@@ -0,0 +1,27 @@
+#!/usr/bin/sh
+set -xeuo pipefail
+
+# Copy minecraft-data from the local AnyGate checkout instead of cloning upstream.
+# This is used when upstream does not yet have the target version or when we want
+# to test local changes before pushing.
+
+LOCAL_MINECRAFT_DATA="${LOCAL_MINECRAFT_DATA:-$HOME/src/anygate/minecraft-data}"
+
+cd "$(dirname "$0")"
+
+rm -rf minecraft-data/
+mkdir -p minecraft-data/pc
+
+cp "$LOCAL_MINECRAFT_DATA/data/dataPaths.json" minecraft-data/
+
+copy-mc() {
+  cp -r "$LOCAL_MINECRAFT_DATA/data/pc/$1" minecraft-data/pc
+}
+
+copy-mc common
+
+copy-mc 1.21.8
+copy-mc 1.21.9
+copy-mc 1.21.11
+copy-mc 26.1
+copy-mc 26.2

mc/data/data.go

@@ -12,6 +12,7 @@ import (
 //go:embed minecraft-data/pc minecraft-data/dataPaths.json
 var MinecraftData embed.FS
 
+// LoadJson reads a JSON file from the embedded minecraft-data FS and unmarshals it into data.
 func LoadJson(path string, data any) (err error) {
 	b, err := MinecraftData.ReadFile(path)
 	if err != nil {
@@ -21,6 +22,7 @@ func LoadJson(path string, data any) (err error) {
 	return
 }
 
+// LoadVersionedJson loads a version-specific JSON data file from the embedded minecraft-data FS and unmarshals it into data.
 func LoadVersionedJson(version, dataName string, data any) (err error) {
 	b, err := MinecraftData.ReadFile("minecraft-data/" + Paths.Data[version][dataName] + "/" + dataName + ".json")
 	if err != nil {

mc/data/download_minecraft_data.sh

@@ -3,6 +3,8 @@ set -xeuo pipefail
 
 # Go get / install does not clone git submodules so we have to do it like this
 
+cd "$(dirname "$0")"
+
 rm -rf minecraft-data/
 git clone --depth 1 git@github.com:PrismarineJS/minecraft-data.git
 mv minecraft-data minecraft-data-untrimmed

mc/data/item.go

@@ -19,6 +19,7 @@ type Item struct {
 var ItemsCache = make(map[string][]*Item)
 var ItemsCacheMutex = &sync.RWMutex{}
 
+// ItemsForVersion returns the item definitions for the given Minecraft version, caching them after the first load.
 func ItemsForVersion(v string) (ret []*Item) {
 	var ok bool
 	ItemsCacheMutex.RLock()
@@ -35,6 +36,7 @@ func ItemsForVersion(v string) (ret []*Item) {
 	return b
 }
 
+// LookupItemById returns the item with the given numeric ID in the given version.
 func LookupItemById(version string, id int32) (item *Item, ok bool) {
 	for _, i := range ItemsForVersion(version) {
 		if i.Id == id {
@@ -46,6 +48,7 @@ func LookupItemById(version string, id int32) (item *Item, ok bool) {
 	return
 }
 
+// LookupItemByName returns the item with the given name in the given version.
 func LookupItemByName(version string, name string) (item *Item, ok bool) {
 	for _, i := range ItemsForVersion(version) {
 		if i.Name == name {

mc/data/minecraft-data/dataPaths.json

@@ -1583,7 +1583,8 @@
       "tints": "pc/1.21.5",
       "version": "pc/1.21.5",
       "windows": "pc/1.16.1",
-      "proto": "pc/1.21.5"
+      "proto": "pc/1.21.5",
+      "multi_noise_biome_source_parameter_list": "pc/1.21.5"
     },
     "1.21.6": {
       "attributes": "pc/1.21.6",
@@ -1610,7 +1611,8 @@
       "tints": "pc/1.21.6",
       "version": "pc/1.21.6",
       "windows": "pc/1.16.1",
-      "proto": "pc/1.21.6"
+      "proto": "pc/1.21.6",
+      "multi_noise_biome_source_parameter_list": "pc/1.21.6"
     },
     "1.21.8": {
       "attributes": "pc/1.21.8",
@@ -1630,7 +1632,6 @@
       "loginPacket": "pc/1.21.3",
       "mapIcons": "pc/1.20.2",
       "materials": "pc/1.21.8",
-      "multi_noise_biome_source_parameter_list": "pc/1.21.8",
       "particles": "pc/1.21.8",
       "protocol": "pc/1.21.8",
       "recipes": "pc/1.21.8",
@@ -1638,7 +1639,8 @@
       "tints": "pc/1.21.8",
       "version": "pc/1.21.8",
       "windows": "pc/1.16.1",
-      "proto": "pc/1.21.8"
+      "proto": "pc/1.21.8",
+      "multi_noise_biome_source_parameter_list": "pc/1.21.8"
     },
     "1.21.9": {
       "attributes": "pc/1.21.9",
@@ -1658,7 +1660,6 @@
       "loginPacket": "pc/1.21.9",
       "mapIcons": "pc/1.20.2",
       "materials": "pc/1.21.9",
-      "multi_noise_biome_source_parameter_list": "pc/1.21.9",
       "particles": "pc/1.21.9",
       "protocol": "pc/1.21.9",
       "recipes": "pc/1.21.9",
@@ -1666,7 +1667,8 @@
       "tints": "pc/1.21.9",
       "version": "pc/1.21.9",
       "windows": "pc/1.16.1",
-      "proto": "pc/1.21.9"
+      "proto": "pc/1.21.9",
+      "multi_noise_biome_source_parameter_list": "pc/1.21.9"
     },
     "1.21.10": {
       "attributes": "pc/1.21.9",
@@ -1713,7 +1715,6 @@
       "loginPacket": "pc/1.21.11",
       "mapIcons": "pc/1.20.2",
       "materials": "pc/1.21.11",
-      "multi_noise_biome_source_parameter_list": "pc/1.21.11",
       "particles": "pc/1.21.11",
       "protocol": "pc/1.21.11",
       "recipes": "pc/1.21.11",
@@ -1721,7 +1722,62 @@
       "tints": "pc/1.21.11",
       "version": "pc/1.21.11",
       "windows": "pc/1.16.1",
+      "proto": "pc/1.21.11",
+      "multi_noise_biome_source_parameter_list": "pc/1.21.11"
+    },
+    "26.1": {
+      "attributes": "pc/26.1",
+      "blockCollisionShapes": "pc/26.1",
+      "blocks": "pc/26.1",
+      "blockLoot": "pc/1.20",
+      "biomes": "pc/26.1",
+      "commands": "pc/1.20.3",
+      "effects": "pc/26.1",
+      "enchantments": "pc/26.1",
+      "entities": "pc/26.1",
+      "entityLoot": "pc/1.20",
+      "foods": "pc/26.1",
+      "instruments": "pc/26.1",
+      "items": "pc/26.1",
+      "language": "pc/26.1",
+      "loginPacket": "pc/1.21.11",
+      "mapIcons": "pc/1.20.2",
+      "materials": "pc/26.1",
+      "particles": "pc/26.1",
+      "protocol": "pc/26.1",
+      "recipes": "pc/26.1",
+      "sounds": "pc/26.1",
+      "tints": "pc/26.1",
+      "version": "pc/26.1",
+      "windows": "pc/1.16.1",
       "proto": "pc/latest"
+    },
+    "26.2": {
+      "attributes": "pc/26.2",
+      "blockCollisionShapes": "pc/26.2",
+      "blocks": "pc/26.2",
+      "blockLoot": "pc/1.20",
+      "biomes": "pc/26.2",
+      "commands": "pc/1.20.3",
+      "effects": "pc/26.2",
+      "enchantments": "pc/26.2",
+      "entities": "pc/26.2",
+      "entityLoot": "pc/1.20",
+      "foods": "pc/26.2",
+      "instruments": "pc/26.2",
+      "items": "pc/26.2",
+      "language": "pc/26.2",
+      "loginPacket": "pc/1.21.11",
+      "mapIcons": "pc/1.20.2",
+      "materials": "pc/26.2",
+      "particles": "pc/26.2",
+      "protocol": "pc/26.2",
+      "recipes": "pc/26.2",
+      "sounds": "pc/26.2",
+      "tints": "pc/26.2",
+      "version": "pc/26.2",
+      "windows": "pc/1.16.1",
+      "proto": "pc/26.2"
     }
   },
   "bedrock": {
@@ -2767,12 +2823,12 @@
       "language": "bedrock/1.21.70"
     },
     "1.26.0": {
-      "blocks": "bedrock/1.21.111",
+      "blocks": "bedrock/1.26.0",
-      "blockStates": "bedrock/1.21.111",
+      "blockStates": "bedrock/1.26.0",
-      "blockCollisionShapes": "bedrock/1.21.111",
+      "blockCollisionShapes": "bedrock/1.26.0",
       "biomes": "bedrock/1.21.60",
       "entities": "bedrock/1.21.80",
-      "items": "bedrock/1.21.111",
+      "items": "bedrock/1.26.0",
       "recipes": "bedrock/1.19.10",
       "instruments": "bedrock/1.17.0",
       "materials": "pc/1.17",
@@ -2781,33 +2837,77 @@
       "protocol": "bedrock/1.26.0",
       "windows": "bedrock/1.16.201",
       "steve": "bedrock/1.21.70",
-      "blocksB2J": "bedrock/1.21.111",
+      "blocksB2J": "bedrock/1.26.0",
-      "blocksJ2B": "bedrock/1.21.111",
+      "blocksJ2B": "bedrock/1.26.0",
       "proto": "bedrock/1.26.0",
       "types": "bedrock/latest",
       "version": "bedrock/1.26.0",
       "language": "bedrock/1.21.70"
     },
-    "26.10": {
+    "1.26.10": {
-      "blocks": "bedrock/1.21.111",
+      "blocks": "bedrock/1.26.10",
-      "blockStates": "bedrock/1.21.111",
+      "blockStates": "bedrock/1.26.10",
-      "blockCollisionShapes": "bedrock/1.21.111",
+      "blockCollisionShapes": "bedrock/1.26.10",
       "biomes": "bedrock/1.21.60",
       "entities": "bedrock/1.21.80",
-      "items": "bedrock/1.21.111",
+      "items": "bedrock/1.26.10",
       "recipes": "bedrock/1.19.10",
       "instruments": "bedrock/1.17.0",
       "materials": "pc/1.17",
       "enchantments": "bedrock/1.19.1",
       "effects": "pc/1.17",
-      "protocol": "bedrock/26.10",
+      "protocol": "bedrock/1.26.10",
       "windows": "bedrock/1.16.201",
       "steve": "bedrock/1.21.70",
-      "blocksB2J": "bedrock/1.21.111",
+      "blocksB2J": "bedrock/1.26.0",
-      "blocksJ2B": "bedrock/1.21.111",
+      "blocksJ2B": "bedrock/1.26.0",
+      "proto": "bedrock/1.26.10",
+      "types": "bedrock/latest",
+      "version": "bedrock/1.26.10",
+      "language": "bedrock/1.21.70"
+    },
+    "1.26.20": {
+      "blocks": "bedrock/1.26.20",
+      "blockStates": "bedrock/1.26.20",
+      "blockCollisionShapes": "bedrock/1.26.20",
+      "biomes": "bedrock/1.21.60",
+      "entities": "bedrock/1.21.80",
+      "items": "bedrock/1.26.20",
+      "recipes": "bedrock/1.19.10",
+      "instruments": "bedrock/1.17.0",
+      "materials": "pc/1.17",
+      "enchantments": "bedrock/1.19.1",
+      "effects": "pc/1.17",
+      "protocol": "bedrock/1.26.20",
+      "windows": "bedrock/1.16.201",
+      "steve": "bedrock/1.21.70",
+      "blocksB2J": "bedrock/1.26.20",
+      "blocksJ2B": "bedrock/1.26.20",
+      "proto": "bedrock/1.26.20",
+      "types": "bedrock/latest",
+      "version": "bedrock/1.26.20",
+      "language": "bedrock/1.21.70"
+    },
+    "1.26.30": {
+      "blocks": "bedrock/1.26.30",
+      "blockStates": "bedrock/1.26.30",
+      "blockCollisionShapes": "bedrock/1.26.30",
+      "biomes": "bedrock/1.21.60",
+      "entities": "bedrock/1.21.80",
+      "items": "bedrock/1.26.30",
+      "recipes": "bedrock/1.19.10",
+      "instruments": "bedrock/1.17.0",
+      "materials": "pc/1.17",
+      "enchantments": "bedrock/1.19.1",
+      "effects": "pc/1.17",
+      "protocol": "bedrock/1.26.30",
+      "windows": "bedrock/1.16.201",
+      "steve": "bedrock/1.21.70",
+      "blocksB2J": "bedrock/1.26.30",
+      "blocksJ2B": "bedrock/1.26.30",
       "proto": "bedrock/latest",
       "types": "bedrock/latest",
-      "version": "bedrock/26.10",
+      "version": "bedrock/1.26.30",
       "language": "bedrock/1.21.70"
     }
   }

mc/data/minecraft-data/pc/1.21.11/multi_noise_biome_source_parameter_list.json

@@ -1,156 +1,4 @@
 {
-  "minecraft:nether": [
-    {
-      "biome": "minecraft:nether_wastes",
-      "parameters": {
-        "temperature": [
-          0,
-          0
-        ],
-        "humidity": [
-          0,
-          0
-        ],
-        "continentalness": [
-          0,
-          0
-        ],
-        "erosion": [
-          0,
-          0
-        ],
-        "depth": [
-          0,
-          0
-        ],
-        "weirdness": [
-          0,
-          0
-        ],
-        "offset": 0.0
-      }
-    },
-    {
-      "biome": "minecraft:soul_sand_valley",
-      "parameters": {
-        "temperature": [
-          0,
-          0
-        ],
-        "humidity": [
-          -5000,
-          -5000
-        ],
-        "continentalness": [
-          0,
-          0
-        ],
-        "erosion": [
-          0,
-          0
-        ],
-        "depth": [
-          0,
-          0
-        ],
-        "weirdness": [
-          0,
-          0
-        ],
-        "offset": 0.0
-      }
-    },
-    {
-      "biome": "minecraft:crimson_forest",
-      "parameters": {
-        "temperature": [
-          4000,
-          4000
-        ],
-        "humidity": [
-          0,
-          0
-        ],
-        "continentalness": [
-          0,
-          0
-        ],
-        "erosion": [
-          0,
-          0
-        ],
-        "depth": [
-          0,
-          0
-        ],
-        "weirdness": [
-          0,
-          0
-        ],
-        "offset": 0.0
-      }
-    },
-    {
-      "biome": "minecraft:warped_forest",
-      "parameters": {
-        "temperature": [
-          0,
-          0
-        ],
-        "humidity": [
-          5000,
-          5000
-        ],
-        "continentalness": [
-          0,
-          0
-        ],
-        "erosion": [
-          0,
-          0
-        ],
-        "depth": [
-          0,
-          0
-        ],
-        "weirdness": [
-          0,
-          0
-        ],
-        "offset": 0.375
-      }
-    },
-    {
-      "biome": "minecraft:basalt_deltas",
-      "parameters": {
-        "temperature": [
-          -5000,
-          -5000
-        ],
-        "humidity": [
-          0,
-          0
-        ],
-        "continentalness": [
-          0,
-          0
-        ],
-        "erosion": [
-          0,
-          0
-        ],
-        "depth": [
-          0,
-          0
-        ],
-        "weirdness": [
-          0,
-          0
-        ],
-        "offset": 0.175
-      }
-    }
-  ],
   "minecraft:overworld": [
     {
       "biome": "minecraft:mushroom_fields",
@@ -227942,5 +227790,157 @@
         "offset": 0.0
       }
     }
+  ],
+  "minecraft:nether": [
+    {
+      "biome": "minecraft:nether_wastes",
+      "parameters": {
+        "temperature": [
+          0,
+          0
+        ],
+        "humidity": [
+          0,
+          0
+        ],
+        "continentalness": [
+          0,
+          0
+        ],
+        "erosion": [
+          0,
+          0
+        ],
+        "depth": [
+          0,
+          0
+        ],
+        "weirdness": [
+          0,
+          0
+        ],
+        "offset": 0.0
+      }
+    },
+    {
+      "biome": "minecraft:soul_sand_valley",
+      "parameters": {
+        "temperature": [
+          0,
+          0
+        ],
+        "humidity": [
+          -5000,
+          -5000
+        ],
+        "continentalness": [
+          0,
+          0
+        ],
+        "erosion": [
+          0,
+          0
+        ],
+        "depth": [
+          0,
+          0
+        ],
+        "weirdness": [
+          0,
+          0
+        ],
+        "offset": 0.0
+      }
+    },
+    {
+      "biome": "minecraft:crimson_forest",
+      "parameters": {
+        "temperature": [
+          4000,
+          4000
+        ],
+        "humidity": [
+          0,
+          0
+        ],
+        "continentalness": [
+          0,
+          0
+        ],
+        "erosion": [
+          0,
+          0
+        ],
+        "depth": [
+          0,
+          0
+        ],
+        "weirdness": [
+          0,
+          0
+        ],
+        "offset": 0.0
+      }
+    },
+    {
+      "biome": "minecraft:warped_forest",
+      "parameters": {
+        "temperature": [
+          0,
+          0
+        ],
+        "humidity": [
+          5000,
+          5000
+        ],
+        "continentalness": [
+          0,
+          0
+        ],
+        "erosion": [
+          0,
+          0
+        ],
+        "depth": [
+          0,
+          0
+        ],
+        "weirdness": [
+          0,
+          0
+        ],
+        "offset": 0.375
+      }
+    },
+    {
+      "biome": "minecraft:basalt_deltas",
+      "parameters": {
+        "temperature": [
+          -5000,
+          -5000
+        ],
+        "humidity": [
+          0,
+          0
+        ],
+        "continentalness": [
+          0,
+          0
+        ],
+        "erosion": [
+          0,
+          0
+        ],
+        "depth": [
+          0,
+          0
+        ],
+        "weirdness": [
+          0,
+          0
+        ],
+        "offset": 0.175
+      }
+    }
   ]
 }

mc/data/minecraft-data/pc/1.21.11/protocol.json

@@ -447,6 +447,11 @@
                   ]
                 ],
                 "attribute_modifiers": [
+                  "container",
+                  [
+                    {
+                      "name": "attributes",
+                      "type": [
                         "array",
                         {
                           "countType": "varint",
@@ -500,6 +505,11 @@
                                     }
                                   }
                                 ]
+                              }
+                            ]
+                          ]
+                        }
+                      ]
                     },
                     {
                       "name": "display",
@@ -536,8 +546,6 @@
                       ]
                     }
                   ]
-                    ]
-                  }
                 ],
                 "custom_model_data": [
                   "container",
@@ -5706,6 +5714,10 @@
   "play": {
     "toClient": {
       "types": {
+        "packet_bundle_delimiter": [
+          "container",
+          []
+        ],
         "SlotDisplay": [
           "container",
           [
@@ -10121,7 +10133,7 @@
                 {
                   "compareTo": "name",
                   "fields": {
-                    "bundle_delimiter": "void",
+                    "bundle_delimiter": "packet_bundle_delimiter",
                     "spawn_entity": "packet_spawn_entity",
                     "animation": "packet_animation",
                     "statistics": "packet_statistics",

mc/data/minecraft-data/pc/1.21.8/proto.yml

@@ -1595,6 +1595,9 @@
          if select_known_packs: packet_common_select_known_packs
          if custom_click_action: packet_common_custom_click_action
 ^play.toClient.types:
+   # MC: ClientboundBundleDelimiterPacket
+   packet_bundle_delimiter:
+      # empty
    SlotDisplay:
       type: varint =>
          - empty
@@ -2844,7 +2847,7 @@
       - clear_dialog
       - show_dialog
       params: name ?
-         if bundle_delimiter: void
+         if bundle_delimiter: packet_bundle_delimiter
          if spawn_entity: packet_spawn_entity
          if animation: packet_animation
          if statistics: packet_statistics
@@ -3031,7 +3034,7 @@
             "count": 3
          }
       ]
-      checksum: i8
+      checksum: u8
    # MC: ServerboundChatPacket
    packet_chat_message:
       message: string
@@ -3050,7 +3053,7 @@
             "count": 3
          }
       ]
-      checksum: i8
+      checksum: u8
    # MC: ServerboundChatSessionUpdatePacket
    packet_chat_session_update:
       sessionUUID: UUID
@@ -3076,7 +3079,7 @@
    # MC: ServerboundContainerButtonClickPacket
    packet_enchant_item:
       windowId: ContainerID
-      enchantment: i8
+      enchantment: varint
    # MC: ServerboundContainerClickPacket
    packet_window_click:
       windowId: ContainerID

mc/data/minecraft-data/pc/1.21.8/protocol.json

@@ -4377,6 +4377,10 @@
   "play": {
     "toClient": {
       "types": {
+        "packet_bundle_delimiter": [
+          "container",
+          []
+        ],
         "SlotDisplay": [
           "container",
           [
@@ -8702,7 +8706,7 @@
                 {
                   "compareTo": "name",
                   "fields": {
-                    "bundle_delimiter": "void",
+                    "bundle_delimiter": "packet_bundle_delimiter",
                     "spawn_entity": "packet_spawn_entity",
                     "animation": "packet_animation",
                     "statistics": "packet_statistics",
@@ -8996,7 +9000,7 @@
             },
             {
               "name": "checksum",
-              "type": "i8"
+              "type": "u8"
             }
           ]
         ],
@@ -9042,7 +9046,7 @@
             },
             {
               "name": "checksum",
-              "type": "i8"
+              "type": "u8"
             }
           ]
         ],
@@ -9115,7 +9119,7 @@
             },
             {
               "name": "enchantment",
-              "type": "i8"
+              "type": "varint"
             }
           ]
         ],

mc/data/minecraft-data/pc/1.21.9/proto.yml

@@ -1835,6 +1835,9 @@
          if custom_click_action: packet_common_custom_click_action
          if accept_code_of_conduct: packet_accept_code_of_conduct
 ^play.toClient.types:
+   # MC: ClientboundBundleDelimiterPacket
+   packet_bundle_delimiter:
+      # empty
    SlotDisplay:
       type: varint =>
          - empty
@@ -3114,7 +3117,7 @@
       - clear_dialog
       - show_dialog
       params: name ?
-         if bundle_delimiter: void
+         if bundle_delimiter: packet_bundle_delimiter
          if spawn_entity: packet_spawn_entity
          if animation: packet_animation
          if statistics: packet_statistics
@@ -3305,7 +3308,7 @@
             "count": 3
          }
       ]
-      checksum: i8
+      checksum: u8
    # MC: ServerboundChatPacket
    packet_chat_message:
       message: string
@@ -3350,7 +3353,7 @@
    # MC: ServerboundContainerButtonClickPacket
    packet_enchant_item:
       windowId: ContainerID
-      enchantment: i8
+      enchantment: varint
    # MC: ServerboundContainerClickPacket
    packet_window_click:
       windowId: ContainerID

mc/data/minecraft-data/pc/1.21.9/protocol.json

@@ -5416,6 +5416,10 @@
   "play": {
     "toClient": {
       "types": {
+        "packet_bundle_delimiter": [
+          "container",
+          []
+        ],
         "SlotDisplay": [
           "container",
           [
@@ -9831,7 +9835,7 @@
                 {
                   "compareTo": "name",
                   "fields": {
-                    "bundle_delimiter": "void",
+                    "bundle_delimiter": "packet_bundle_delimiter",
                     "spawn_entity": "packet_spawn_entity",
                     "animation": "packet_animation",
                     "statistics": "packet_statistics",
@@ -10130,7 +10134,7 @@
             },
             {
               "name": "checksum",
-              "type": "i8"
+              "type": "u8"
             }
           ]
         ],
@@ -10249,7 +10253,7 @@
             },
             {
               "name": "enchantment",
-              "type": "i8"
+              "type": "varint"
             }
           ]
         ],

mc/data/minecraft-data/pc/26.1/attributes.json

@@ -0,0 +1,247 @@
+[
+  {
+    "name": "armor",
+    "resource": "minecraft:armor",
+    "min": 0.0,
+    "max": 30.0,
+    "default": 0.0
+  },
+  {
+    "name": "armorToughness",
+    "resource": "minecraft:armor_toughness",
+    "min": 0.0,
+    "max": 20.0,
+    "default": 0.0
+  },
+  {
+    "name": "attackDamage",
+    "resource": "minecraft:attack_damage",
+    "min": 0.0,
+    "max": 2048.0,
+    "default": 2.0
+  },
+  {
+    "name": "attackKnockback",
+    "resource": "minecraft:attack_knockback",
+    "min": 0.0,
+    "max": 5.0,
+    "default": 0.0
+  },
+  {
+    "name": "attackSpeed",
+    "resource": "minecraft:attack_speed",
+    "min": 0.0,
+    "max": 1024.0,
+    "default": 4.0
+  },
+  {
+    "name": "blockBreakSpeed",
+    "resource": "minecraft:block_break_speed",
+    "min": 0.0,
+    "max": 1024.0,
+    "default": 1.0
+  },
+  {
+    "name": "blockInteractionRange",
+    "resource": "minecraft:block_interaction_range",
+    "min": 0.0,
+    "max": 64.0,
+    "default": 4.5
+  },
+  {
+    "name": "burningTime",
+    "resource": "minecraft:burning_time",
+    "min": 0.0,
+    "max": 1024.0,
+    "default": 1.0
+  },
+  {
+    "name": "cameraDistance",
+    "resource": "minecraft:camera_distance",
+    "min": 0.0,
+    "max": 32.0,
+    "default": 4.0
+  },
+  {
+    "name": "explosionKnockbackResistance",
+    "resource": "minecraft:explosion_knockback_resistance",
+    "min": 0.0,
+    "max": 1.0,
+    "default": 0.0
+  },
+  {
+    "name": "entityInteractionRange",
+    "resource": "minecraft:entity_interaction_range",
+    "min": 0.0,
+    "max": 64.0,
+    "default": 3.0
+  },
+  {
+    "name": "fallDamageMultiplier",
+    "resource": "minecraft:fall_damage_multiplier",
+    "min": 0.0,
+    "max": 100.0,
+    "default": 1.0
+  },
+  {
+    "name": "flyingSpeed",
+    "resource": "minecraft:flying_speed",
+    "min": 0.0,
+    "max": 1024.0,
+    "default": 0.4
+  },
+  {
+    "name": "followRange",
+    "resource": "minecraft:follow_range",
+    "min": 0.0,
+    "max": 2048.0,
+    "default": 32.0
+  },
+  {
+    "name": "gravity",
+    "resource": "minecraft:gravity",
+    "min": -1.0,
+    "max": 1.0,
+    "default": 0.08
+  },
+  {
+    "name": "jumpStrength",
+    "resource": "minecraft:jump_strength",
+    "min": 0.0,
+    "max": 32.0,
+    "default": 0.41999998688697815
+  },
+  {
+    "name": "knockbackResistance",
+    "resource": "minecraft:knockback_resistance",
+    "min": 0.0,
+    "max": 1.0,
+    "default": 0.0
+  },
+  {
+    "name": "luck",
+    "resource": "minecraft:luck",
+    "min": -1024.0,
+    "max": 1024.0,
+    "default": 0.0
+  },
+  {
+    "name": "maxAbsorption",
+    "resource": "minecraft:max_absorption",
+    "min": 0.0,
+    "max": 2048.0,
+    "default": 0.0
+  },
+  {
+    "name": "maxHealth",
+    "resource": "minecraft:max_health",
+    "min": 1.0,
+    "max": 1024.0,
+    "default": 20.0
+  },
+  {
+    "name": "miningEfficiency",
+    "resource": "minecraft:mining_efficiency",
+    "min": 0.0,
+    "max": 1024.0,
+    "default": 0.0
+  },
+  {
+    "name": "movementEfficiency",
+    "resource": "minecraft:movement_efficiency",
+    "min": 0.0,
+    "max": 1.0,
+    "default": 0.0
+  },
+  {
+    "name": "movementSpeed",
+    "resource": "minecraft:movement_speed",
+    "min": 0.0,
+    "max": 1024.0,
+    "default": 0.7
+  },
+  {
+    "name": "oxygenBonus",
+    "resource": "minecraft:oxygen_bonus",
+    "min": 0.0,
+    "max": 1024.0,
+    "default": 0.0
+  },
+  {
+    "name": "safeFallDistance",
+    "resource": "minecraft:safe_fall_distance",
+    "min": -1024.0,
+    "max": 1024.0,
+    "default": 3.0
+  },
+  {
+    "name": "scale",
+    "resource": "minecraft:scale",
+    "min": 0.0625,
+    "max": 16.0,
+    "default": 1.0
+  },
+  {
+    "name": "sneakingSpeed",
+    "resource": "minecraft:sneaking_speed",
+    "min": 0.0,
+    "max": 1.0,
+    "default": 0.3
+  },
+  {
+    "name": "spawnReinforcements",
+    "resource": "minecraft:spawn_reinforcements",
+    "min": 0.0,
+    "max": 1.0,
+    "default": 0.0
+  },
+  {
+    "name": "stepHeight",
+    "resource": "minecraft:step_height",
+    "min": 0.0,
+    "max": 10.0,
+    "default": 0.6
+  },
+  {
+    "name": "submergedMiningSpeed",
+    "resource": "minecraft:submerged_mining_speed",
+    "min": 0.0,
+    "max": 20.0,
+    "default": 0.2
+  },
+  {
+    "name": "sweepingDamageRatio",
+    "resource": "minecraft:sweeping_damage_ratio",
+    "min": 0.0,
+    "max": 1.0,
+    "default": 0.0
+  },
+  {
+    "name": "temptRange",
+    "resource": "minecraft:tempt_range",
+    "min": 0.0,
+    "max": 2048.0,
+    "default": 10.0
+  },
+  {
+    "name": "waterMovementEfficiency",
+    "resource": "minecraft:water_movement_efficiency",
+    "min": 0.0,
+    "max": 1.0,
+    "default": 0.0
+  },
+  {
+    "name": "waypointTransmitRange",
+    "resource": "minecraft:waypoint_transmit_range",
+    "min": 0.0,
+    "max": 6.0E7,
+    "default": 0.0
+  },
+  {
+    "name": "waypointReceiveRange",
+    "resource": "minecraft:waypoint_receive_range",
+    "min": 0.0,
+    "max": 6.0E7,
+    "default": 0.0
+  }
+]

mc/data/minecraft-data/pc/26.1/biomes.json

@@ -0,0 +1,652 @@
+[
+  {
+    "id": 0,
+    "name": "badlands",
+    "category": "mesa",
+    "temperature": 2.0,
+    "has_precipitation": false,
+    "dimension": "overworld",
+    "displayName": "Badlands",
+    "color": 7254527
+  },
+  {
+    "id": 1,
+    "name": "bamboo_jungle",
+    "category": "jungle",
+    "temperature": 0.95,
+    "has_precipitation": true,
+    "dimension": "overworld",
+    "displayName": "Bamboo Jungle",
+    "color": 7842047
+  },
+  {
+    "id": 2,
+    "name": "basalt_deltas",
+    "category": "nether",
+    "temperature": 2.0,
+    "has_precipitation": false,
+    "dimension": "nether",
+    "displayName": "Basalt Deltas",
+    "color": 0
+  },
+  {
+    "id": 3,
+    "name": "beach",
+    "category": "beach",
+    "temperature": 0.8,
+    "has_precipitation": true,
+    "dimension": "overworld",
+    "displayName": "Beach",
+    "color": 7907327
+  },
+  {
+    "id": 4,
+    "name": "birch_forest",
+    "category": "forest",
+    "temperature": 0.6,
+    "has_precipitation": true,
+    "dimension": "overworld",
+    "displayName": "Birch Forest",
+    "color": 8037887
+  },
+  {
+    "id": 5,
+    "name": "cherry_grove",
+    "category": "forest",
+    "temperature": 0.5,
+    "has_precipitation": true,
+    "dimension": "overworld",
+    "displayName": "Cherry Grove",
+    "color": 8103167
+  },
+  {
+    "id": 6,
+    "name": "cold_ocean",
+    "category": "ocean",
+    "temperature": 0.5,
+    "has_precipitation": true,
+    "dimension": "overworld",
+    "displayName": "Cold Ocean",
+    "color": 8103167
+  },
+  {
+    "id": 7,
+    "name": "crimson_forest",
+    "category": "nether",
+    "temperature": 2.0,
+    "has_precipitation": false,
+    "dimension": "nether",
+    "displayName": "Crimson Forest",
+    "color": 0
+  },
+  {
+    "id": 8,
+    "name": "dark_forest",
+    "category": "forest",
+    "temperature": 0.7,
+    "has_precipitation": true,
+    "dimension": "overworld",
+    "displayName": "Dark Forest",
+    "color": 7972607
+  },
+  {
+    "id": 9,
+    "name": "deep_cold_ocean",
+    "category": "ocean",
+    "temperature": 0.5,
+    "has_precipitation": true,
+    "dimension": "overworld",
+    "displayName": "Deep Cold Ocean",
+    "color": 8103167
+  },
+  {
+    "id": 10,
+    "name": "deep_dark",
+    "category": "underground",
+    "temperature": 0.8,
+    "has_precipitation": true,
+    "dimension": "overworld",
+    "displayName": "Deep Dark",
+    "color": 7907327
+  },
+  {
+    "id": 11,
+    "name": "deep_frozen_ocean",
+    "category": "ocean",
+    "temperature": 0.5,
+    "has_precipitation": true,
+    "dimension": "overworld",
+    "displayName": "Deep Frozen Ocean",
+    "color": 8103167
+  },
+  {
+    "id": 12,
+    "name": "deep_lukewarm_ocean",
+    "category": "ocean",
+    "temperature": 0.5,
+    "has_precipitation": true,
+    "dimension": "overworld",
+    "displayName": "Deep Lukewarm Ocean",
+    "color": 8103167
+  },
+  {
+    "id": 13,
+    "name": "deep_ocean",
+    "category": "ocean",
+    "temperature": 0.5,
+    "has_precipitation": true,
+    "dimension": "overworld",
+    "displayName": "Deep Ocean",
+    "color": 8103167
+  },
+  {
+    "id": 14,
+    "name": "desert",
+    "category": "desert",
+    "temperature": 2.0,
+    "has_precipitation": false,
+    "dimension": "overworld",
+    "displayName": "Desert",
+    "color": 7254527
+  },
+  {
+    "id": 15,
+    "name": "dripstone_caves",
+    "category": "underground",
+    "temperature": 0.8,
+    "has_precipitation": true,
+    "dimension": "overworld",
+    "displayName": "Dripstone Caves",
+    "color": 7907327
+  },
+  {
+    "id": 16,
+    "name": "end_barrens",
+    "category": "the_end",
+    "temperature": 0.5,
+    "has_precipitation": false,
+    "dimension": "end",
+    "displayName": "End Barrens",
+    "color": 0
+  },
+  {
+    "id": 17,
+    "name": "end_highlands",
+    "category": "the_end",
+    "temperature": 0.5,
+    "has_precipitation": false,
+    "dimension": "end",
+    "displayName": "End Highlands",
+    "color": 0
+  },
+  {
+    "id": 18,
+    "name": "end_midlands",
+    "category": "the_end",
+    "temperature": 0.5,
+    "has_precipitation": false,
+    "dimension": "end",
+    "displayName": "End Midlands",
+    "color": 0
+  },
+  {
+    "id": 19,
+    "name": "eroded_badlands",
+    "category": "mesa",
+    "temperature": 2.0,
+    "has_precipitation": false,
+    "dimension": "overworld",
+    "displayName": "Eroded Badlands",
+    "color": 7254527
+  },
+  {
+    "id": 20,
+    "name": "flower_forest",
+    "category": "forest",
+    "temperature": 0.7,
+    "has_precipitation": true,
+    "dimension": "overworld",
+    "displayName": "Flower Forest",
+    "color": 7972607
+  },
+  {
+    "id": 21,
+    "name": "forest",
+    "category": "forest",
+    "temperature": 0.7,
+    "has_precipitation": true,
+    "dimension": "overworld",
+    "displayName": "Forest",
+    "color": 7972607
+  },
+  {
+    "id": 22,
+    "name": "frozen_ocean",
+    "category": "ocean",
+    "temperature": 0.0,
+    "has_precipitation": true,
+    "dimension": "overworld",
+    "displayName": "Frozen Ocean",
+    "color": 8364543
+  },
+  {
+    "id": 23,
+    "name": "frozen_peaks",
+    "category": "ice",
+    "temperature": -0.7,
+    "has_precipitation": true,
+    "dimension": "overworld",
+    "displayName": "Frozen Peaks",
+    "color": 8756735
+  },
+  {
+    "id": 24,
+    "name": "frozen_river",
+    "category": "ice",
+    "temperature": 0.0,
+    "has_precipitation": true,
+    "dimension": "overworld",
+    "displayName": "Frozen River",
+    "color": 8364543
+  },
+  {
+    "id": 25,
+    "name": "grove",
+    "category": "forest",
+    "temperature": -0.2,
+    "has_precipitation": true,
+    "dimension": "overworld",
+    "displayName": "Grove",
+    "color": 8495359
+  },
+  {
+    "id": 26,
+    "name": "ice_spikes",
+    "category": "ice",
+    "temperature": 0.0,
+    "has_precipitation": true,
+    "dimension": "overworld",
+    "displayName": "Ice Spikes",
+    "color": 8364543
+  },
+  {
+    "id": 27,
+    "name": "jagged_peaks",
+    "category": "mountain",
+    "temperature": -0.7,
+    "has_precipitation": true,
+    "dimension": "overworld",
+    "displayName": "Jagged Peaks",
+    "color": 8756735
+  },
+  {
+    "id": 28,
+    "name": "jungle",
+    "category": "jungle",
+    "temperature": 0.95,
+    "has_precipitation": true,
+    "dimension": "overworld",
+    "displayName": "Jungle",
+    "color": 7842047
+  },
+  {
+    "id": 29,
+    "name": "lukewarm_ocean",
+    "category": "ocean",
+    "temperature": 0.5,
+    "has_precipitation": true,
+    "dimension": "overworld",
+    "displayName": "Lukewarm Ocean",
+    "color": 8103167
+  },
+  {
+    "id": 30,
+    "name": "lush_caves",
+    "category": "underground",
+    "temperature": 0.5,
+    "has_precipitation": true,
+    "dimension": "overworld",
+    "displayName": "Lush Caves",
+    "color": 8103167
+  },
+  {
+    "id": 31,
+    "name": "mangrove_swamp",
+    "category": "forest",
+    "temperature": 0.8,
+    "has_precipitation": true,
+    "dimension": "overworld",
+    "displayName": "Mangrove Swamp",
+    "color": 7907327
+  },
+  {
+    "id": 32,
+    "name": "meadow",
+    "category": "mountain",
+    "temperature": 0.5,
+    "has_precipitation": true,
+    "dimension": "overworld",
+    "displayName": "Meadow",
+    "color": 8103167
+  },
+  {
+    "id": 33,
+    "name": "mushroom_fields",
+    "category": "mushroom",
+    "temperature": 0.9,
+    "has_precipitation": true,
+    "dimension": "overworld",
+    "displayName": "Mushroom Fields",
+    "color": 7842047
+  },
+  {
+    "id": 34,
+    "name": "nether_wastes",
+    "category": "nether",
+    "temperature": 2.0,
+    "has_precipitation": false,
+    "dimension": "nether",
+    "displayName": "Nether Wastes",
+    "color": 0
+  },
+  {
+    "id": 35,
+    "name": "ocean",
+    "category": "ocean",
+    "temperature": 0.5,
+    "has_precipitation": true,
+    "dimension": "overworld",
+    "displayName": "Ocean",
+    "color": 8103167
+  },
+  {
+    "id": 36,
+    "name": "old_growth_birch_forest",
+    "category": "forest",
+    "temperature": 0.6,
+    "has_precipitation": true,
+    "dimension": "overworld",
+    "displayName": "Old Growth Birch Forest",
+    "color": 8037887
+  },
+  {
+    "id": 37,
+    "name": "old_growth_pine_taiga",
+    "category": "taiga",
+    "temperature": 0.3,
+    "has_precipitation": true,
+    "dimension": "overworld",
+    "displayName": "Old Growth Pine Taiga",
+    "color": 8168447
+  },
+  {
+    "id": 38,
+    "name": "old_growth_spruce_taiga",
+    "category": "taiga",
+    "temperature": 0.25,
+    "has_precipitation": true,
+    "dimension": "overworld",
+    "displayName": "Old Growth Spruce Taiga",
+    "color": 8233983
+  },
+  {
+    "id": 39,
+    "name": "pale_garden",
+    "category": "none",
+    "temperature": 0.7,
+    "has_precipitation": true,
+    "dimension": "overworld",
+    "displayName": "Pale Garden",
+    "color": 12171705
+  },
+  {
+    "id": 40,
+    "name": "plains",
+    "category": "plains",
+    "temperature": 0.8,
+    "has_precipitation": true,
+    "dimension": "overworld",
+    "displayName": "Plains",
+    "color": 7907327
+  },
+  {
+    "id": 41,
+    "name": "river",
+    "category": "river",
+    "temperature": 0.5,
+    "has_precipitation": true,
+    "dimension": "overworld",
+    "displayName": "River",
+    "color": 8103167
+  },
+  {
+    "id": 42,
+    "name": "savanna",
+    "category": "savanna",
+    "temperature": 2.0,
+    "has_precipitation": false,
+    "dimension": "overworld",
+    "displayName": "Savanna",
+    "color": 7254527
+  },
+  {
+    "id": 43,
+    "name": "savanna_plateau",
+    "category": "savanna",
+    "temperature": 2.0,
+    "has_precipitation": false,
+    "dimension": "overworld",
+    "displayName": "Savanna Plateau",
+    "color": 7254527
+  },
+  {
+    "id": 44,
+    "name": "small_end_islands",
+    "category": "the_end",
+    "temperature": 0.5,
+    "has_precipitation": false,
+    "dimension": "end",
+    "displayName": "Small End Islands",
+    "color": 0
+  },
+  {
+    "id": 45,
+    "name": "snowy_beach",
+    "category": "beach",
+    "temperature": 0.05,
+    "has_precipitation": true,
+    "dimension": "overworld",
+    "displayName": "Snowy Beach",
+    "color": 8364543
+  },
+  {
+    "id": 46,
+    "name": "snowy_plains",
+    "category": "plains",
+    "temperature": 0.0,
+    "has_precipitation": true,
+    "dimension": "overworld",
+    "displayName": "Snowy Plains",
+    "color": 8364543
+  },
+  {
+    "id": 47,
+    "name": "snowy_slopes",
+    "category": "mountain",
+    "temperature": -0.3,
+    "has_precipitation": true,
+    "dimension": "overworld",
+    "displayName": "Snowy Slopes",
+    "color": 8560639
+  },
+  {
+    "id": 48,
+    "name": "snowy_taiga",
+    "category": "taiga",
+    "temperature": -0.5,
+    "has_precipitation": true,
+    "dimension": "overworld",
+    "displayName": "Snowy Taiga",
+    "color": 8625919
+  },
+  {
+    "id": 49,
+    "name": "soul_sand_valley",
+    "category": "nether",
+    "temperature": 2.0,
+    "has_precipitation": false,
+    "dimension": "nether",
+    "displayName": "Soul Sand Valley",
+    "color": 0
+  },
+  {
+    "id": 50,
+    "name": "sparse_jungle",
+    "category": "jungle",
+    "temperature": 0.95,
+    "has_precipitation": true,
+    "dimension": "overworld",
+    "displayName": "Sparse Jungle",
+    "color": 7842047
+  },
+  {
+    "id": 51,
+    "name": "stony_peaks",
+    "category": "mountain",
+    "temperature": 1.0,
+    "has_precipitation": true,
+    "dimension": "overworld",
+    "displayName": "Stony Peaks",
+    "color": 7776511
+  },
+  {
+    "id": 52,
+    "name": "stony_shore",
+    "category": "beach",
+    "temperature": 0.2,
+    "has_precipitation": true,
+    "dimension": "overworld",
+    "displayName": "Stony Shore",
+    "color": 8233727
+  },
+  {
+    "id": 53,
+    "name": "sunflower_plains",
+    "category": "plains",
+    "temperature": 0.8,
+    "has_precipitation": true,
+    "dimension": "overworld",
+    "displayName": "Sunflower Plains",
+    "color": 7907327
+  },
+  {
+    "id": 54,
+    "name": "swamp",
+    "category": "swamp",
+    "temperature": 0.8,
+    "has_precipitation": true,
+    "dimension": "overworld",
+    "displayName": "Swamp",
+    "color": 7907327
+  },
+  {
+    "id": 55,
+    "name": "taiga",
+    "category": "taiga",
+    "temperature": 0.25,
+    "has_precipitation": true,
+    "dimension": "overworld",
+    "displayName": "Taiga",
+    "color": 8233983
+  },
+  {
+    "id": 56,
+    "name": "the_end",
+    "category": "the_end",
+    "temperature": 0.5,
+    "has_precipitation": false,
+    "dimension": "end",
+    "displayName": "The End",
+    "color": 0
+  },
+  {
+    "id": 57,
+    "name": "the_void",
+    "category": "none",
+    "temperature": 0.5,
+    "has_precipitation": false,
+    "dimension": "overworld",
+    "displayName": "The Void",
+    "color": 8103167
+  },
+  {
+    "id": 58,
+    "name": "warm_ocean",
+    "category": "ocean",
+    "temperature": 0.5,
+    "has_precipitation": true,
+    "dimension": "overworld",
+    "displayName": "Warm Ocean",
+    "color": 8103167
+  },
+  {
+    "id": 59,
+    "name": "warped_forest",
+    "category": "nether",
+    "temperature": 2.0,
+    "has_precipitation": false,
+    "dimension": "nether",
+    "displayName": "Warped Forest",
+    "color": 0
+  },
+  {
+    "id": 60,
+    "name": "windswept_forest",
+    "category": "forest",
+    "temperature": 0.2,
+    "has_precipitation": true,
+    "dimension": "overworld",
+    "displayName": "Windswept Forest",
+    "color": 8233727
+  },
+  {
+    "id": 61,
+    "name": "windswept_gravelly_hills",
+    "category": "extreme_hills",
+    "temperature": 0.2,
+    "has_precipitation": true,
+    "dimension": "overworld",
+    "displayName": "Windswept Gravelly Hills",
+    "color": 8233727
+  },
+  {
+    "id": 62,
+    "name": "windswept_hills",
+    "category": "extreme_hills",
+    "temperature": 0.2,
+    "has_precipitation": true,
+    "dimension": "overworld",
+    "displayName": "Windswept Hills",
+    "color": 8233727
+  },
+  {
+    "id": 63,
+    "name": "windswept_savanna",
+    "category": "savanna",
+    "temperature": 2.0,
+    "has_precipitation": false,
+    "dimension": "overworld",
+    "displayName": "Windswept Savanna",
+    "color": 7254527
+  },
+  {
+    "id": 64,
+    "name": "wooded_badlands",
+    "category": "mesa",
+    "temperature": 2.0,
+    "has_precipitation": false,
+    "dimension": "overworld",
+    "displayName": "Wooded Badlands",
+    "color": 7254527
+  }
+]

mc/data/minecraft-data/pc/26.1/effects.json

@@ -0,0 +1,242 @@
+[
+  {
+    "id": 0,
+    "name": "Speed",
+    "displayName": "Speed",
+    "type": "good"
+  },
+  {
+    "id": 1,
+    "name": "Slowness",
+    "displayName": "Slowness",
+    "type": "bad"
+  },
+  {
+    "id": 2,
+    "name": "Haste",
+    "displayName": "Haste",
+    "type": "good"
+  },
+  {
+    "id": 3,
+    "name": "MiningFatigue",
+    "displayName": "Mining Fatigue",
+    "type": "bad"
+  },
+  {
+    "id": 4,
+    "name": "Strength",
+    "displayName": "Strength",
+    "type": "good"
+  },
+  {
+    "id": 5,
+    "name": "InstantHealth",
+    "displayName": "Instant Health",
+    "type": "good"
+  },
+  {
+    "id": 6,
+    "name": "InstantDamage",
+    "displayName": "Instant Damage",
+    "type": "bad"
+  },
+  {
+    "id": 7,
+    "name": "JumpBoost",
+    "displayName": "Jump Boost",
+    "type": "good"
+  },
+  {
+    "id": 8,
+    "name": "Nausea",
+    "displayName": "Nausea",
+    "type": "bad"
+  },
+  {
+    "id": 9,
+    "name": "Regeneration",
+    "displayName": "Regeneration",
+    "type": "good"
+  },
+  {
+    "id": 10,
+    "name": "Resistance",
+    "displayName": "Resistance",
+    "type": "good"
+  },
+  {
+    "id": 11,
+    "name": "FireResistance",
+    "displayName": "Fire Resistance",
+    "type": "good"
+  },
+  {
+    "id": 12,
+    "name": "WaterBreathing",
+    "displayName": "Water Breathing",
+    "type": "good"
+  },
+  {
+    "id": 13,
+    "name": "Invisibility",
+    "displayName": "Invisibility",
+    "type": "good"
+  },
+  {
+    "id": 14,
+    "name": "Blindness",
+    "displayName": "Blindness",
+    "type": "bad"
+  },
+  {
+    "id": 15,
+    "name": "NightVision",
+    "displayName": "Night Vision",
+    "type": "good"
+  },
+  {
+    "id": 16,
+    "name": "Hunger",
+    "displayName": "Hunger",
+    "type": "bad"
+  },
+  {
+    "id": 17,
+    "name": "Weakness",
+    "displayName": "Weakness",
+    "type": "bad"
+  },
+  {
+    "id": 18,
+    "name": "Poison",
+    "displayName": "Poison",
+    "type": "bad"
+  },
+  {
+    "id": 19,
+    "name": "Wither",
+    "displayName": "Wither",
+    "type": "bad"
+  },
+  {
+    "id": 20,
+    "name": "HealthBoost",
+    "displayName": "Health Boost",
+    "type": "good"
+  },
+  {
+    "id": 21,
+    "name": "Absorption",
+    "displayName": "Absorption",
+    "type": "good"
+  },
+  {
+    "id": 22,
+    "name": "Saturation",
+    "displayName": "Saturation",
+    "type": "good"
+  },
+  {
+    "id": 23,
+    "name": "Glowing",
+    "displayName": "Glowing",
+    "type": "bad"
+  },
+  {
+    "id": 24,
+    "name": "Levitation",
+    "displayName": "Levitation",
+    "type": "bad"
+  },
+  {
+    "id": 25,
+    "name": "Luck",
+    "displayName": "Luck",
+    "type": "good"
+  },
+  {
+    "id": 26,
+    "name": "BadLuck",
+    "displayName": "Bad Luck",
+    "type": "bad"
+  },
+  {
+    "id": 27,
+    "name": "SlowFalling",
+    "displayName": "Slow Falling",
+    "type": "good"
+  },
+  {
+    "id": 28,
+    "name": "ConduitPower",
+    "displayName": "Conduit Power",
+    "type": "good"
+  },
+  {
+    "id": 29,
+    "name": "DolphinsGrace",
+    "displayName": "Dolphin's Grace",
+    "type": "good"
+  },
+  {
+    "id": 30,
+    "name": "BadOmen",
+    "displayName": "Bad Omen",
+    "type": "bad"
+  },
+  {
+    "id": 31,
+    "name": "HeroOfTheVillage",
+    "displayName": "Hero of the Village",
+    "type": "good"
+  },
+  {
+    "id": 32,
+    "name": "Darkness",
+    "displayName": "Darkness",
+    "type": "bad"
+  },
+  {
+    "id": 33,
+    "name": "TrialOmen",
+    "displayName": "Trial Omen",
+    "type": "bad"
+  },
+  {
+    "id": 34,
+    "name": "RaidOmen",
+    "displayName": "Raid Omen",
+    "type": "bad"
+  },
+  {
+    "id": 35,
+    "name": "WindCharged",
+    "displayName": "Wind Charged",
+    "type": "bad"
+  },
+  {
+    "id": 36,
+    "name": "Weaving",
+    "displayName": "Weaving",
+    "type": "bad"
+  },
+  {
+    "id": 37,
+    "name": "Oozing",
+    "displayName": "Oozing",
+    "type": "bad"
+  },
+  {
+    "id": 38,
+    "name": "Infested",
+    "displayName": "Infested",
+    "type": "bad"
+  },
+  {
+    "id": 39,
+    "name": "BreathOfTheNautilus",
+    "displayName": "Breath of the Nautilus",
+    "type": "good"
+  }
+]

mc/data/minecraft-data/pc/26.1/enchantments.json

@@ -0,0 +1,980 @@
+[
+  {
+    "id": 0,
+    "name": "aqua_affinity",
+    "displayName": "Aqua Affinity",
+    "maxLevel": 1,
+    "minCost": {
+      "a": 0,
+      "b": 1
+    },
+    "maxCost": {
+      "a": 0,
+      "b": 1
+    },
+    "treasureOnly": false,
+    "curse": false,
+    "exclude": [],
+    "category": "head_armor",
+    "weight": 2,
+    "tradeable": true,
+    "discoverable": true
+  },
+  {
+    "id": 1,
+    "name": "bane_of_arthropods",
+    "displayName": "Bane of Arthropods",
+    "maxLevel": 5,
+    "minCost": {
+      "a": 4,
+      "b": 1
+    },
+    "maxCost": {
+      "a": 4,
+      "b": 1
+    },
+    "treasureOnly": false,
+    "curse": false,
+    "exclude": [
+      "breach",
+      "density",
+      "impaling",
+      "sharpness",
+      "smite"
+    ],
+    "category": "weapon",
+    "weight": 5,
+    "tradeable": true,
+    "discoverable": true
+  },
+  {
+    "id": 2,
+    "name": "binding_curse",
+    "displayName": "Curse of Binding",
+    "maxLevel": 1,
+    "minCost": {
+      "a": 0,
+      "b": 1
+    },
+    "maxCost": {
+      "a": 0,
+      "b": 1
+    },
+    "treasureOnly": true,
+    "curse": true,
+    "exclude": [],
+    "category": "equippable",
+    "weight": 1,
+    "tradeable": true,
+    "discoverable": true
+  },
+  {
+    "id": 3,
+    "name": "blast_protection",
+    "displayName": "Blast Protection",
+    "maxLevel": 4,
+    "minCost": {
+      "a": 3,
+      "b": 1
+    },
+    "maxCost": {
+      "a": 3,
+      "b": 1
+    },
+    "treasureOnly": false,
+    "curse": false,
+    "exclude": [
+      "fire_protection",
+      "projectile_protection",
+      "protection"
+    ],
+    "category": "armor",
+    "weight": 2,
+    "tradeable": true,
+    "discoverable": true
+  },
+  {
+    "id": 4,
+    "name": "breach",
+    "displayName": "Breach",
+    "maxLevel": 4,
+    "minCost": {
+      "a": 3,
+      "b": 1
+    },
+    "maxCost": {
+      "a": 3,
+      "b": 1
+    },
+    "treasureOnly": false,
+    "curse": false,
+    "exclude": [
+      "bane_of_arthropods",
+      "density",
+      "impaling",
+      "sharpness",
+      "smite"
+    ],
+    "category": "mace",
+    "weight": 2,
+    "tradeable": true,
+    "discoverable": true
+  },
+  {
+    "id": 5,
+    "name": "channeling",
+    "displayName": "Channeling",
+    "maxLevel": 1,
+    "minCost": {
+      "a": 0,
+      "b": 1
+    },
+    "maxCost": {
+      "a": 0,
+      "b": 1
+    },
+    "treasureOnly": false,
+    "curse": false,
+    "exclude": [
+      "riptide"
+    ],
+    "category": "trident",
+    "weight": 1,
+    "tradeable": true,
+    "discoverable": true
+  },
+  {
+    "id": 6,
+    "name": "density",
+    "displayName": "Density",
+    "maxLevel": 5,
+    "minCost": {
+      "a": 4,
+      "b": 1
+    },
+    "maxCost": {
+      "a": 4,
+      "b": 1
+    },
+    "treasureOnly": false,
+    "curse": false,
+    "exclude": [
+      "bane_of_arthropods",
+      "breach",
+      "impaling",
+      "sharpness",
+      "smite"
+    ],
+    "category": "mace",
+    "weight": 5,
+    "tradeable": true,
+    "discoverable": true
+  },
+  {
+    "id": 7,
+    "name": "depth_strider",
+    "displayName": "Depth Strider",
+    "maxLevel": 3,
+    "minCost": {
+      "a": 2,
+      "b": 1
+    },
+    "maxCost": {
+      "a": 2,
+      "b": 1
+    },
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+    "curse": false,
+    "exclude": [
+      "frost_walker"
+    ],
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+    "weight": 2,
+    "tradeable": true,
+    "discoverable": true
+  },
+  {
+    "id": 8,
+    "name": "efficiency",
+    "displayName": "Efficiency",
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+      "b": 1
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+    "maxCost": {
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+      "b": 1
+    },
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+    "curse": false,
+    "exclude": [],
+    "category": "mining",
+    "weight": 10,
+    "tradeable": true,
+    "discoverable": true
+  },
+  {
+    "id": 9,
+    "name": "feather_falling",
+    "displayName": "Feather Falling",
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+      "b": 1
+    },
+    "maxCost": {
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+    },
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+    "curse": false,
+    "exclude": [],
+    "category": "foot_armor",
+    "weight": 5,
+    "tradeable": true,
+    "discoverable": true
+  },
+  {
+    "id": 10,
+    "name": "fire_aspect",
+    "displayName": "Fire Aspect",
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+    "minCost": {
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+      "b": 1
+    },
+    "maxCost": {
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+      "b": 1
+    },
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+    "curse": false,
+    "exclude": [],
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+    "weight": 2,
+    "tradeable": true,
+    "discoverable": true
+  },
+  {
+    "id": 11,
+    "name": "fire_protection",
+    "displayName": "Fire Protection",
+    "maxLevel": 4,
+    "minCost": {
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+      "b": 1
+    },
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+      "b": 1
+    },
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+    "curse": false,
+    "exclude": [
+      "blast_protection",
+      "projectile_protection",
+      "protection"
+    ],
+    "category": "armor",
+    "weight": 5,
+    "tradeable": true,
+    "discoverable": true
+  },
+  {
+    "id": 12,
+    "name": "flame",
+    "displayName": "Flame",
+    "maxLevel": 1,
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+      "b": 1
+    },
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+    },
+    "treasureOnly": false,
+    "curse": false,
+    "exclude": [],
+    "category": "bow",
+    "weight": 2,
+    "tradeable": true,
+    "discoverable": true
+  },
+  {
+    "id": 13,
+    "name": "fortune",
+    "displayName": "Fortune",
+    "maxLevel": 3,
+    "minCost": {
+      "a": 2,
+      "b": 1
+    },
+    "maxCost": {
+      "a": 2,
+      "b": 1
+    },
+    "treasureOnly": false,
+    "curse": false,
+    "exclude": [
+      "silk_touch"
+    ],
+    "category": "mining_loot",
+    "weight": 2,
+    "tradeable": true,
+    "discoverable": true
+  },
+  {
+    "id": 14,
+    "name": "frost_walker",
+    "displayName": "Frost Walker",
+    "maxLevel": 2,
+    "minCost": {
+      "a": 1,
+      "b": 1
+    },
+    "maxCost": {
+      "a": 1,
+      "b": 1
+    },
+    "treasureOnly": true,
+    "curse": false,
+    "exclude": [
+      "depth_strider"
+    ],
+    "category": "foot_armor",
+    "weight": 2,
+    "tradeable": true,
+    "discoverable": true
+  },
+  {
+    "id": 15,
+    "name": "impaling",
+    "displayName": "Impaling",
+    "maxLevel": 5,
+    "minCost": {
+      "a": 4,
+      "b": 1
+    },
+    "maxCost": {
+      "a": 4,
+      "b": 1
+    },
+    "treasureOnly": false,
+    "curse": false,
+    "exclude": [
+      "bane_of_arthropods",
+      "breach",
+      "density",
+      "sharpness",
+      "smite"
+    ],
+    "category": "trident",
+    "weight": 2,
+    "tradeable": true,
+    "discoverable": true
+  },
+  {
+    "id": 16,
+    "name": "infinity",
+    "displayName": "Infinity",
+    "maxLevel": 1,
+    "minCost": {
+      "a": 0,
+      "b": 1
+    },
+    "maxCost": {
+      "a": 0,
+      "b": 1
+    },
+    "treasureOnly": false,
+    "curse": false,
+    "exclude": [
+      "mending"
+    ],
+    "category": "bow",
+    "weight": 1,
+    "tradeable": true,
+    "discoverable": true
+  },
+  {
+    "id": 17,
+    "name": "knockback",
+    "displayName": "Knockback",
+    "maxLevel": 2,
+    "minCost": {
+      "a": 1,
+      "b": 1
+    },
+    "maxCost": {
+      "a": 1,
+      "b": 1
+    },
+    "treasureOnly": false,
+    "curse": false,
+    "exclude": [],
+    "category": "melee_weapon",
+    "weight": 5,
+    "tradeable": true,
+    "discoverable": true
+  },
+  {
+    "id": 18,
+    "name": "looting",
+    "displayName": "Looting",
+    "maxLevel": 3,
+    "minCost": {
+      "a": 2,
+      "b": 1
+    },
+    "maxCost": {
+      "a": 2,
+      "b": 1
+    },
+    "treasureOnly": false,
+    "curse": false,
+    "exclude": [],
+    "category": "melee_weapon",
+    "weight": 2,
+    "tradeable": true,
+    "discoverable": true
+  },
+  {
+    "id": 19,
+    "name": "loyalty",
+    "displayName": "Loyalty",
+    "maxLevel": 3,
+    "minCost": {
+      "a": 2,
+      "b": 1
+    },
+    "maxCost": {
+      "a": 2,
+      "b": 1
+    },
+    "treasureOnly": false,
+    "curse": false,
+    "exclude": [
+      "riptide"
+    ],
+    "category": "trident",
+    "weight": 5,
+    "tradeable": true,
+    "discoverable": true
+  },
+  {
+    "id": 20,
+    "name": "luck_of_the_sea",
+    "displayName": "Luck of the Sea",
+    "maxLevel": 3,
+    "minCost": {
+      "a": 2,
+      "b": 1
+    },
+    "maxCost": {
+      "a": 2,
+      "b": 1
+    },
+    "treasureOnly": false,
+    "curse": false,
+    "exclude": [],
+    "category": "fishing",
+    "weight": 2,
+    "tradeable": true,
+    "discoverable": true
+  },
+  {
+    "id": 21,
+    "name": "lunge",
+    "displayName": "Lunge",
+    "maxLevel": 3,
+    "minCost": {
+      "a": 2,
+      "b": 1
+    },
+    "maxCost": {
+      "a": 2,
+      "b": 1
+    },
+    "treasureOnly": false,
+    "curse": false,
+    "exclude": [],
+    "category": "lunge",
+    "weight": 5,
+    "tradeable": true,
+    "discoverable": true
+  },
+  {
+    "id": 22,
+    "name": "lure",
+    "displayName": "Lure",
+    "maxLevel": 3,
+    "minCost": {
+      "a": 2,
+      "b": 1
+    },
+    "maxCost": {
+      "a": 2,
+      "b": 1
+    },
+    "treasureOnly": false,
+    "curse": false,
+    "exclude": [],
+    "category": "fishing",
+    "weight": 2,
+    "tradeable": true,
+    "discoverable": true
+  },
+  {
+    "id": 23,
+    "name": "mending",
+    "displayName": "Mending",
+    "maxLevel": 1,
+    "minCost": {
+      "a": 0,
+      "b": 1
+    },
+    "maxCost": {
+      "a": 0,
+      "b": 1
+    },
+    "treasureOnly": true,
+    "curse": false,
+    "exclude": [
+      "infinity"
+    ],
+    "category": "durability",
+    "weight": 2,
+    "tradeable": true,
+    "discoverable": true
+  },
+  {
+    "id": 24,
+    "name": "multishot",
+    "displayName": "Multishot",
+    "maxLevel": 1,
+    "minCost": {
+      "a": 0,
+      "b": 1
+    },
+    "maxCost": {
+      "a": 0,
+      "b": 1
+    },
+    "treasureOnly": false,
+    "curse": false,
+    "exclude": [
+      "piercing"
+    ],
+    "category": "crossbow",
+    "weight": 2,
+    "tradeable": true,
+    "discoverable": true
+  },
+  {
+    "id": 25,
+    "name": "piercing",
+    "displayName": "Piercing",
+    "maxLevel": 4,
+    "minCost": {
+      "a": 3,
+      "b": 1
+    },
+    "maxCost": {
+      "a": 3,
+      "b": 1
+    },
+    "treasureOnly": false,
+    "curse": false,
+    "exclude": [
+      "multishot"
+    ],
+    "category": "crossbow",
+    "weight": 10,
+    "tradeable": true,
+    "discoverable": true
+  },
+  {
+    "id": 26,
+    "name": "power",
+    "displayName": "Power",
+    "maxLevel": 5,
+    "minCost": {
+      "a": 4,
+      "b": 1
+    },
+    "maxCost": {
+      "a": 4,
+      "b": 1
+    },
+    "treasureOnly": false,
+    "curse": false,
+    "exclude": [],
+    "category": "bow",
+    "weight": 10,
+    "tradeable": true,
+    "discoverable": true
+  },
+  {
+    "id": 27,
+    "name": "projectile_protection",
+    "displayName": "Projectile Protection",
+    "maxLevel": 4,
+    "minCost": {
+      "a": 3,
+      "b": 1
+    },
+    "maxCost": {
+      "a": 3,
+      "b": 1
+    },
+    "treasureOnly": false,
+    "curse": false,
+    "exclude": [
+      "blast_protection",
+      "fire_protection",
+      "protection"
+    ],
+    "category": "armor",
+    "weight": 5,
+    "tradeable": true,
+    "discoverable": true
+  },
+  {
+    "id": 28,
+    "name": "protection",
+    "displayName": "Protection",
+    "maxLevel": 4,
+    "minCost": {
+      "a": 3,
+      "b": 1
+    },
+    "maxCost": {
+      "a": 3,
+      "b": 1
+    },
+    "treasureOnly": false,
+    "curse": false,
+    "exclude": [
+      "blast_protection",
+      "fire_protection",
+      "projectile_protection"
+    ],
+    "category": "armor",
+    "weight": 10,
+    "tradeable": true,
+    "discoverable": true
+  },
+  {
+    "id": 29,
+    "name": "punch",
+    "displayName": "Punch",
+    "maxLevel": 2,
+    "minCost": {
+      "a": 1,
+      "b": 1
+    },
+    "maxCost": {
+      "a": 1,
+      "b": 1
+    },
+    "treasureOnly": false,
+    "curse": false,
+    "exclude": [],
+    "category": "bow",
+    "weight": 2,
+    "tradeable": true,
+    "discoverable": true
+  },
+  {
+    "id": 30,
+    "name": "quick_charge",
+    "displayName": "Quick Charge",
+    "maxLevel": 3,
+    "minCost": {
+      "a": 2,
+      "b": 1
+    },
+    "maxCost": {
+      "a": 2,
+      "b": 1
+    },
+    "treasureOnly": false,
+    "curse": false,
+    "exclude": [],
+    "category": "crossbow",
+    "weight": 5,
+    "tradeable": true,
+    "discoverable": true
+  },
+  {
+    "id": 31,
+    "name": "respiration",
+    "displayName": "Respiration",
+    "maxLevel": 3,
+    "minCost": {
+      "a": 2,
+      "b": 1
+    },
+    "maxCost": {
+      "a": 2,
+      "b": 1
+    },
+    "treasureOnly": false,
+    "curse": false,
+    "exclude": [],
+    "category": "head_armor",
+    "weight": 2,
+    "tradeable": true,
+    "discoverable": true
+  },
+  {
+    "id": 32,
+    "name": "riptide",
+    "displayName": "Riptide",
+    "maxLevel": 3,
+    "minCost": {
+      "a": 2,
+      "b": 1
+    },
+    "maxCost": {
+      "a": 2,
+      "b": 1
+    },
+    "treasureOnly": false,
+    "curse": false,
+    "exclude": [
+      "channeling",
+      "loyalty"
+    ],
+    "category": "trident",
+    "weight": 2,
+    "tradeable": true,
+    "discoverable": true
+  },
+  {
+    "id": 33,
+    "name": "sharpness",
+    "displayName": "Sharpness",
+    "maxLevel": 5,
+    "minCost": {
+      "a": 4,
+      "b": 1
+    },
+    "maxCost": {
+      "a": 4,
+      "b": 1
+    },
+    "treasureOnly": false,
+    "curse": false,
+    "exclude": [
+      "bane_of_arthropods",
+      "breach",
+      "density",
+      "impaling",
+      "smite"
+    ],
+    "category": "sharp_weapon",
+    "weight": 10,
+    "tradeable": true,
+    "discoverable": true
+  },
+  {
+    "id": 34,
+    "name": "silk_touch",
+    "displayName": "Silk Touch",
+    "maxLevel": 1,
+    "minCost": {
+      "a": 0,
+      "b": 1
+    },
+    "maxCost": {
+      "a": 0,
+      "b": 1
+    },
+    "treasureOnly": false,
+    "curse": false,
+    "exclude": [
+      "fortune"
+    ],
+    "category": "mining_loot",
+    "weight": 1,
+    "tradeable": true,
+    "discoverable": true
+  },
+  {
+    "id": 35,
+    "name": "smite",
+    "displayName": "Smite",
+    "maxLevel": 5,
+    "minCost": {
+      "a": 4,
+      "b": 1
+    },
+    "maxCost": {
+      "a": 4,
+      "b": 1
+    },
+    "treasureOnly": false,
+    "curse": false,
+    "exclude": [
+      "bane_of_arthropods",
+      "breach",
+      "density",
+      "impaling",
+      "sharpness"
+    ],
+    "category": "weapon",
+    "weight": 5,
+    "tradeable": true,
+    "discoverable": true
+  },
+  {
+    "id": 36,
+    "name": "soul_speed",
+    "displayName": "Soul Speed",
+    "maxLevel": 3,
+    "minCost": {
+      "a": 2,
+      "b": 1
+    },
+    "maxCost": {
+      "a": 2,
+      "b": 1
+    },
+    "treasureOnly": true,
+    "curse": false,
+    "exclude": [],
+    "category": "foot_armor",
+    "weight": 1,
+    "tradeable": false,
+    "discoverable": false
+  },
+  {
+    "id": 37,
+    "name": "sweeping_edge",
+    "displayName": "Sweeping Edge",
+    "maxLevel": 3,
+    "minCost": {
+      "a": 2,
+      "b": 1
+    },
+    "maxCost": {
+      "a": 2,
+      "b": 1
+    },
+    "treasureOnly": false,
+    "curse": false,
+    "exclude": [],
+    "category": "sweeping",
+    "weight": 2,
+    "tradeable": true,
+    "discoverable": true
+  },
+  {
+    "id": 38,
+    "name": "swift_sneak",
+    "displayName": "Swift Sneak",
+    "maxLevel": 3,
+    "minCost": {
+      "a": 2,
+      "b": 1
+    },
+    "maxCost": {
+      "a": 2,
+      "b": 1
+    },
+    "treasureOnly": true,
+    "curse": false,
+    "exclude": [],
+    "category": "leg_armor",
+    "weight": 1,
+    "tradeable": false,
+    "discoverable": false
+  },
+  {
+    "id": 39,
+    "name": "thorns",
+    "displayName": "Thorns",
+    "maxLevel": 3,
+    "minCost": {
+      "a": 2,
+      "b": 1
+    },
+    "maxCost": {
+      "a": 2,
+      "b": 1
+    },
+    "treasureOnly": false,
+    "curse": false,
+    "exclude": [],
+    "category": "armor",
+    "weight": 1,
+    "tradeable": true,
+    "discoverable": true
+  },
+  {
+    "id": 40,
+    "name": "unbreaking",
+    "displayName": "Unbreaking",
+    "maxLevel": 3,
+    "minCost": {
+      "a": 2,
+      "b": 1
+    },
+    "maxCost": {
+      "a": 2,
+      "b": 1
+    },
+    "treasureOnly": false,
+    "curse": false,
+    "exclude": [],
+    "category": "durability",
+    "weight": 5,
+    "tradeable": true,
+    "discoverable": true
+  },
+  {
+    "id": 41,
+    "name": "vanishing_curse",
+    "displayName": "Curse of Vanishing",
+    "maxLevel": 1,
+    "minCost": {
+      "a": 0,
+      "b": 1
+    },
+    "maxCost": {
+      "a": 0,
+      "b": 1
+    },
+    "treasureOnly": true,
+    "curse": true,
+    "exclude": [],
+    "category": "vanishing",
+    "weight": 1,
+    "tradeable": true,
+    "discoverable": true
+  },
+  {
+    "id": 42,
+    "name": "wind_burst",
+    "displayName": "Wind Burst",
+    "maxLevel": 3,
+    "minCost": {
+      "a": 2,
+      "b": 1
+    },
+    "maxCost": {
+      "a": 2,
+      "b": 1
+    },
+    "treasureOnly": true,
+    "curse": false,
+    "exclude": [],
+    "category": "mace",
+    "weight": 2,
+    "tradeable": false,
+    "discoverable": false
+  }
+]

mc/data/minecraft-data/pc/26.1/foods.json

@@ -0,0 +1,442 @@
+[
+  {
+    "id": 894,
+    "name": "apple",
+    "stackSize": 64,
+    "displayName": "Apple",
+    "foodPoints": 4.0,
+    "saturation": 2.4,
+    "effectiveQuality": 6.4,
+    "saturationRatio": 0.6
+  },
+  {
+    "id": 948,
+    "name": "mushroom_stew",
+    "stackSize": 1,
+    "displayName": "Mushroom Stew",
+    "foodPoints": 6.0,
+    "saturation": 7.2000003,
+    "effectiveQuality": 13.200001,
+    "saturationRatio": 1.2
+  },
+  {
+    "id": 954,
+    "name": "bread",
+    "stackSize": 64,
+    "displayName": "Bread",
+    "foodPoints": 5.0,
+    "saturation": 6.0,
+    "effectiveQuality": 11.0,
+    "saturationRatio": 1.2
+  },
+  {
+    "id": 984,
+    "name": "porkchop",
+    "stackSize": 64,
+    "displayName": "Raw Porkchop",
+    "foodPoints": 3.0,
+    "saturation": 1.8000001,
+    "effectiveQuality": 4.8,
+    "saturationRatio": 0.6
+  },
+  {
+    "id": 985,
+    "name": "cooked_porkchop",
+    "stackSize": 64,
+    "displayName": "Cooked Porkchop",
+    "foodPoints": 8.0,
+    "saturation": 12.8,
+    "effectiveQuality": 20.8,
+    "saturationRatio": 1.6
+  },
+  {
+    "id": 987,
+    "name": "golden_apple",
+    "stackSize": 64,
+    "displayName": "Golden Apple",
+    "foodPoints": 4.0,
+    "saturation": 9.6,
+    "effectiveQuality": 13.6,
+    "saturationRatio": 2.4
+  },
+  {
+    "id": 988,
+    "name": "enchanted_golden_apple",
+    "stackSize": 64,
+    "displayName": "Enchanted Golden Apple",
+    "foodPoints": 4.0,
+    "saturation": 9.6,
+    "effectiveQuality": 13.6,
+    "saturationRatio": 2.4
+  },
+  {
+    "id": 1020,
+    "name": "pufferfish_bucket",
+    "stackSize": 1,
+    "displayName": "Bucket of Pufferfish",
+    "foodPoints": 1.0,
+    "saturation": 0.2,
+    "effectiveQuality": 1.2,
+    "saturationRatio": 0.2
+  },
+  {
+    "id": 1021,
+    "name": "salmon_bucket",
+    "stackSize": 1,
+    "displayName": "Bucket of Salmon",
+    "foodPoints": 2.0,
+    "saturation": 0.4,
+    "effectiveQuality": 2.4,
+    "saturationRatio": 0.2
+  },
+  {
+    "id": 1022,
+    "name": "cod_bucket",
+    "stackSize": 1,
+    "displayName": "Bucket of Cod",
+    "foodPoints": 2.0,
+    "saturation": 0.4,
+    "effectiveQuality": 2.4,
+    "saturationRatio": 0.2
+  },
+  {
+    "id": 1023,
+    "name": "tropical_fish_bucket",
+    "stackSize": 1,
+    "displayName": "Bucket of Tropical Fish",
+    "foodPoints": 1.0,
+    "saturation": 0.2,
+    "effectiveQuality": 1.2,
+    "saturationRatio": 0.2
+  },
+  {
+    "id": 1058,
+    "name": "cod",
+    "stackSize": 64,
+    "displayName": "Raw Cod",
+    "foodPoints": 2.0,
+    "saturation": 0.4,
+    "effectiveQuality": 2.4,
+    "saturationRatio": 0.2
+  },
+  {
+    "id": 1059,
+    "name": "salmon",
+    "stackSize": 64,
+    "displayName": "Raw Salmon",
+    "foodPoints": 2.0,
+    "saturation": 0.4,
+    "effectiveQuality": 2.4,
+    "saturationRatio": 0.2
+  },
+  {
+    "id": 1060,
+    "name": "tropical_fish",
+    "stackSize": 64,
+    "displayName": "Tropical Fish",
+    "foodPoints": 1.0,
+    "saturation": 0.2,
+    "effectiveQuality": 1.2,
+    "saturationRatio": 0.2
+  },
+  {
+    "id": 1061,
+    "name": "pufferfish",
+    "stackSize": 64,
+    "displayName": "Pufferfish",
+    "foodPoints": 1.0,
+    "saturation": 0.2,
+    "effectiveQuality": 1.2,
+    "saturationRatio": 0.2
+  },
+  {
+    "id": 1062,
+    "name": "cooked_cod",
+    "stackSize": 64,
+    "displayName": "Cooked Cod",
+    "foodPoints": 5.0,
+    "saturation": 6.0,
+    "effectiveQuality": 11.0,
+    "saturationRatio": 1.2
+  },
+  {
+    "id": 1063,
+    "name": "cooked_salmon",
+    "stackSize": 64,
+    "displayName": "Cooked Salmon",
+    "foodPoints": 6.0,
+    "saturation": 9.6,
+    "effectiveQuality": 15.6,
+    "saturationRatio": 1.6
+  },
+  {
+    "id": 1103,
+    "name": "cookie",
+    "stackSize": 64,
+    "displayName": "Cookie",
+    "foodPoints": 2.0,
+    "saturation": 0.4,
+    "effectiveQuality": 2.4,
+    "saturationRatio": 0.2
+  },
+  {
+    "id": 1107,
+    "name": "melon_slice",
+    "stackSize": 64,
+    "displayName": "Melon Slice",
+    "foodPoints": 2.0,
+    "saturation": 1.2,
+    "effectiveQuality": 3.2,
+    "saturationRatio": 0.6
+  },
+  {
+    "id": 1108,
+    "name": "dried_kelp",
+    "stackSize": 64,
+    "displayName": "Dried Kelp",
+    "foodPoints": 1.0,
+    "saturation": 0.6,
+    "effectiveQuality": 1.6,
+    "saturationRatio": 0.6
+  },
+  {
+    "id": 1111,
+    "name": "beef",
+    "stackSize": 64,
+    "displayName": "Raw Beef",
+    "foodPoints": 3.0,
+    "saturation": 1.8000001,
+    "effectiveQuality": 4.8,
+    "saturationRatio": 0.6
+  },
+  {
+    "id": 1112,
+    "name": "cooked_beef",
+    "stackSize": 64,
+    "displayName": "Steak",
+    "foodPoints": 8.0,
+    "saturation": 12.8,
+    "effectiveQuality": 20.8,
+    "saturationRatio": 1.6
+  },
+  {
+    "id": 1113,
+    "name": "chicken",
+    "stackSize": 64,
+    "displayName": "Raw Chicken",
+    "foodPoints": 2.0,
+    "saturation": 1.2,
+    "effectiveQuality": 3.2,
+    "saturationRatio": 0.6
+  },
+  {
+    "id": 1114,
+    "name": "cooked_chicken",
+    "stackSize": 64,
+    "displayName": "Cooked Chicken",
+    "foodPoints": 6.0,
+    "saturation": 7.2000003,
+    "effectiveQuality": 13.200001,
+    "saturationRatio": 1.2
+  },
+  {
+    "id": 1115,
+    "name": "rotten_flesh",
+    "stackSize": 64,
+    "displayName": "Rotten Flesh",
+    "foodPoints": 4.0,
+    "saturation": 0.8,
+    "effectiveQuality": 4.8,
+    "saturationRatio": 0.2
+  },
+  {
+    "id": 1123,
+    "name": "spider_eye",
+    "stackSize": 64,
+    "displayName": "Spider Eye",
+    "foodPoints": 2.0,
+    "saturation": 3.2,
+    "effectiveQuality": 5.2,
+    "saturationRatio": 1.6
+  },
+  {
+    "id": 1228,
+    "name": "carrot",
+    "stackSize": 64,
+    "displayName": "Carrot",
+    "foodPoints": 3.0,
+    "saturation": 3.6000001,
+    "effectiveQuality": 6.6000004,
+    "saturationRatio": 1.2
+  },
+  {
+    "id": 1229,
+    "name": "potato",
+    "stackSize": 64,
+    "displayName": "Potato",
+    "foodPoints": 1.0,
+    "saturation": 0.6,
+    "effectiveQuality": 1.6,
+    "saturationRatio": 0.6
+  },
+  {
+    "id": 1230,
+    "name": "baked_potato",
+    "stackSize": 64,
+    "displayName": "Baked Potato",
+    "foodPoints": 5.0,
+    "saturation": 6.0,
+    "effectiveQuality": 11.0,
+    "saturationRatio": 1.2
+  },
+  {
+    "id": 1231,
+    "name": "poisonous_potato",
+    "stackSize": 64,
+    "displayName": "Poisonous Potato",
+    "foodPoints": 2.0,
+    "saturation": 1.2,
+    "effectiveQuality": 3.2,
+    "saturationRatio": 0.6
+  },
+  {
+    "id": 1233,
+    "name": "golden_carrot",
+    "stackSize": 64,
+    "displayName": "Golden Carrot",
+    "foodPoints": 6.0,
+    "saturation": 14.400001,
+    "effectiveQuality": 20.400002,
+    "saturationRatio": 2.4
+  },
+  {
+    "id": 1242,
+    "name": "pumpkin_pie",
+    "stackSize": 64,
+    "displayName": "Pumpkin Pie",
+    "foodPoints": 8.0,
+    "saturation": 4.8,
+    "effectiveQuality": 12.8,
+    "saturationRatio": 0.6
+  },
+  {
+    "id": 1250,
+    "name": "rabbit",
+    "stackSize": 64,
+    "displayName": "Raw Rabbit",
+    "foodPoints": 3.0,
+    "saturation": 1.8000001,
+    "effectiveQuality": 4.8,
+    "saturationRatio": 0.6
+  },
+  {
+    "id": 1251,
+    "name": "cooked_rabbit",
+    "stackSize": 64,
+    "displayName": "Cooked Rabbit",
+    "foodPoints": 5.0,
+    "saturation": 6.0,
+    "effectiveQuality": 11.0,
+    "saturationRatio": 1.2
+  },
+  {
+    "id": 1252,
+    "name": "rabbit_stew",
+    "stackSize": 1,
+    "displayName": "Rabbit Stew",
+    "foodPoints": 10.0,
+    "saturation": 12.0,
+    "effectiveQuality": 22.0,
+    "saturationRatio": 1.2
+  },
+  {
+    "id": 1265,
+    "name": "mutton",
+    "stackSize": 64,
+    "displayName": "Raw Mutton",
+    "foodPoints": 2.0,
+    "saturation": 1.2,
+    "effectiveQuality": 3.2,
+    "saturationRatio": 0.6
+  },
+  {
+    "id": 1266,
+    "name": "cooked_mutton",
+    "stackSize": 64,
+    "displayName": "Cooked Mutton",
+    "foodPoints": 6.0,
+    "saturation": 9.6,
+    "effectiveQuality": 15.6,
+    "saturationRatio": 1.6
+  },
+  {
+    "id": 1284,
+    "name": "chorus_fruit",
+    "stackSize": 64,
+    "displayName": "Chorus Fruit",
+    "foodPoints": 4.0,
+    "saturation": 2.4,
+    "effectiveQuality": 6.4,
+    "saturationRatio": 0.6
+  },
+  {
+    "id": 1288,
+    "name": "beetroot",
+    "stackSize": 64,
+    "displayName": "Beetroot",
+    "foodPoints": 1.0,
+    "saturation": 1.2,
+    "effectiveQuality": 2.2,
+    "saturationRatio": 1.2
+  },
+  {
+    "id": 1290,
+    "name": "beetroot_soup",
+    "stackSize": 1,
+    "displayName": "Beetroot Soup",
+    "foodPoints": 6.0,
+    "saturation": 7.2000003,
+    "effectiveQuality": 13.200001,
+    "saturationRatio": 1.2
+  },
+  {
+    "id": 1341,
+    "name": "suspicious_stew",
+    "stackSize": 1,
+    "displayName": "Suspicious Stew",
+    "foodPoints": 6.0,
+    "saturation": 7.2000003,
+    "effectiveQuality": 13.200001,
+    "saturationRatio": 1.2
+  },
+  {
+    "id": 1374,
+    "name": "sweet_berries",
+    "stackSize": 64,
+    "displayName": "Sweet Berries",
+    "foodPoints": 2.0,
+    "saturation": 0.4,
+    "effectiveQuality": 2.4,
+    "saturationRatio": 0.2
+  },
+  {
+    "id": 1375,
+    "name": "glow_berries",
+    "stackSize": 64,
+    "displayName": "Glow Berries",
+    "foodPoints": 2.0,
+    "saturation": 0.4,
+    "effectiveQuality": 2.4,
+    "saturationRatio": 0.2
+  },
+  {
+    "id": 1382,
+    "name": "honey_bottle",
+    "stackSize": 16,
+    "displayName": "Honey Bottle",
+    "foodPoints": 6.0,
+    "saturation": 1.2,
+    "effectiveQuality": 7.2,
+    "saturationRatio": 0.2
+  }
+]

mc/data/minecraft-data/pc/26.1/instruments.json

@@ -0,0 +1,110 @@
+[
+  {
+    "id": 0,
+    "name": "harp"
+  },
+  {
+    "id": 1,
+    "name": "basedrum"
+  },
+  {
+    "id": 2,
+    "name": "snare"
+  },
+  {
+    "id": 3,
+    "name": "hat"
+  },
+  {
+    "id": 4,
+    "name": "bass"
+  },
+  {
+    "id": 5,
+    "name": "flute"
+  },
+  {
+    "id": 6,
+    "name": "bell"
+  },
+  {
+    "id": 7,
+    "name": "guitar"
+  },
+  {
+    "id": 8,
+    "name": "chime"
+  },
+  {
+    "id": 9,
+    "name": "xylophone"
+  },
+  {
+    "id": 10,
+    "name": "iron_xylophone"
+  },
+  {
+    "id": 11,
+    "name": "cow_bell"
+  },
+  {
+    "id": 12,
+    "name": "didgeridoo"
+  },
+  {
+    "id": 13,
+    "name": "bit"
+  },
+  {
+    "id": 14,
+    "name": "banjo"
+  },
+  {
+    "id": 15,
+    "name": "pling"
+  },
+  {
+    "id": 16,
+    "name": "trumpet"
+  },
+  {
+    "id": 17,
+    "name": "trumpet_exposed"
+  },
+  {
+    "id": 18,
+    "name": "trumpet_oxidized"
+  },
+  {
+    "id": 19,
+    "name": "trumpet_weathered"
+  },
+  {
+    "id": 20,
+    "name": "zombie"
+  },
+  {
+    "id": 21,
+    "name": "skeleton"
+  },
+  {
+    "id": 22,
+    "name": "creeper"
+  },
+  {
+    "id": 23,
+    "name": "dragon"
+  },
+  {
+    "id": 24,
+    "name": "wither_skeleton"
+  },
+  {
+    "id": 25,
+    "name": "piglin"
+  },
+  {
+    "id": 26,
+    "name": "custom_head"
+  }
+]

mc/data/minecraft-data/pc/26.1/materials.json

@@ -0,0 +1,233 @@
+{
+  "default": {},
+  "leaves": {
+    "1106": 1.0,
+    "912": 1.5,
+    "917": 1.5,
+    "922": 1.5,
+    "927": 1.5,
+    "932": 1.5,
+    "937": 1.5,
+    "942": 1.5
+  },
+  "coweb": {
+    "1106": 15.0,
+    "912": 15.0,
+    "917": 15.0,
+    "922": 15.0,
+    "927": 15.0,
+    "932": 15.0,
+    "937": 15.0,
+    "942": 15.0
+  },
+  "plant": {
+    "912": 1.5,
+    "917": 1.5,
+    "922": 1.5,
+    "927": 1.5,
+    "932": 1.5,
+    "937": 1.5,
+    "942": 1.5
+  },
+  "gourd": {
+    "912": 1.5,
+    "917": 1.5,
+    "922": 1.5,
+    "927": 1.5,
+    "932": 1.5,
+    "937": 1.5,
+    "942": 1.5
+  },
+  "vine_or_glow_lichen": {
+    "1106": 2.0
+  },
+  "wool": {
+    "1106": 1.0
+  },
+  "sword_instantly_mines": {
+    "912": 2.0,
+    "917": 1.0,
+    "922": 4.0,
+    "927": 12.0,
+    "932": 6.0,
+    "937": 8.0,
+    "942": 9.0
+  },
+  "sword_efficient": {
+    "912": 2.0,
+    "917": 1.0,
+    "922": 4.0,
+    "927": 12.0,
+    "932": 6.0,
+    "937": 8.0,
+    "942": 9.0
+  },
+  "incorrect_for_wooden_tool": {
+    "913": 2.0,
+    "914": 2.0,
+    "915": 2.0,
+    "916": 2.0
+  },
+  "mineable/shovel": {
+    "913": 2.0,
+    "918": 1.0,
+    "923": 4.0,
+    "928": 12.0,
+    "933": 6.0,
+    "938": 8.0,
+    "943": 9.0
+  },
+  "mineable/pickaxe": {
+    "914": 2.0,
+    "919": 1.0,
+    "924": 4.0,
+    "929": 12.0,
+    "934": 6.0,
+    "939": 8.0,
+    "944": 9.0
+  },
+  "mineable/axe": {
+    "915": 2.0,
+    "920": 1.0,
+    "925": 4.0,
+    "930": 12.0,
+    "935": 6.0,
+    "940": 8.0,
+    "945": 9.0
+  },
+  "mineable/hoe": {
+    "916": 2.0,
+    "921": 1.0,
+    "926": 4.0,
+    "931": 12.0,
+    "936": 6.0,
+    "941": 8.0,
+    "946": 9.0
+  },
+  "incorrect_for_copper_tool": {
+    "918": 1.0,
+    "919": 1.0,
+    "920": 1.0,
+    "921": 1.0
+  },
+  "incorrect_for_stone_tool": {
+    "923": 4.0,
+    "924": 4.0,
+    "925": 4.0,
+    "926": 4.0
+  },
+  "incorrect_for_gold_tool": {
+    "928": 12.0,
+    "929": 12.0,
+    "930": 12.0,
+    "931": 12.0
+  },
+  "incorrect_for_iron_tool": {
+    "933": 6.0,
+    "934": 6.0,
+    "935": 6.0,
+    "936": 6.0
+  },
+  "incorrect_for_diamond_tool": {
+    "938": 8.0,
+    "939": 8.0,
+    "940": 8.0,
+    "941": 8.0
+  },
+  "incorrect_for_netherite_tool": {
+    "943": 9.0,
+    "944": 9.0,
+    "945": 9.0,
+    "946": 9.0
+  },
+  "plant;mineable/axe": {
+    "912": 1.5,
+    "917": 1.5,
+    "922": 1.5,
+    "927": 1.5,
+    "932": 1.5,
+    "937": 1.5,
+    "942": 1.5,
+    "915": 2.0,
+    "920": 1.0,
+    "925": 4.0,
+    "930": 12.0,
+    "935": 6.0,
+    "940": 8.0,
+    "945": 9.0
+  },
+  "gourd;mineable/axe": {
+    "912": 1.5,
+    "917": 1.5,
+    "922": 1.5,
+    "927": 1.5,
+    "932": 1.5,
+    "937": 1.5,
+    "942": 1.5,
+    "915": 2.0,
+    "920": 1.0,
+    "925": 4.0,
+    "930": 12.0,
+    "935": 6.0,
+    "940": 8.0,
+    "945": 9.0
+  },
+  "leaves;mineable/hoe": {
+    "1106": 1.0,
+    "912": 1.5,
+    "917": 1.5,
+    "922": 1.5,
+    "927": 1.5,
+    "932": 1.5,
+    "937": 1.5,
+    "942": 1.5,
+    "916": 2.0,
+    "921": 1.0,
+    "926": 4.0,
+    "931": 12.0,
+    "936": 6.0,
+    "941": 8.0,
+    "946": 9.0
+  },
+  "leaves;mineable/axe;mineable/hoe": {
+    "1106": 1.0,
+    "912": 1.5,
+    "917": 1.5,
+    "922": 1.5,
+    "927": 1.5,
+    "932": 1.5,
+    "937": 1.5,
+    "942": 1.5,
+    "915": 2.0,
+    "920": 1.0,
+    "925": 4.0,
+    "930": 12.0,
+    "935": 6.0,
+    "940": 8.0,
+    "945": 9.0,
+    "916": 2.0,
+    "921": 1.0,
+    "926": 4.0,
+    "931": 12.0,
+    "936": 6.0,
+    "941": 8.0,
+    "946": 9.0
+  },
+  "vine_or_glow_lichen;plant;mineable/axe": {
+    "1106": 2.0,
+    "912": 1.5,
+    "917": 1.5,
+    "922": 1.5,
+    "927": 1.5,
+    "932": 1.5,
+    "937": 1.5,
+    "942": 1.5,
+    "915": 2.0,
+    "920": 1.0,
+    "925": 4.0,
+    "930": 12.0,
+    "935": 6.0,
+    "940": 8.0,
+    "945": 9.0
+  }
+}

mc/data/minecraft-data/pc/26.1/particles.json

@@ -0,0 +1,470 @@
+[
+  {
+    "id": 0,
+    "name": "angry_villager"
+  },
+  {
+    "id": 1,
+    "name": "block"
+  },
+  {
+    "id": 2,
+    "name": "block_marker"
+  },
+  {
+    "id": 3,
+    "name": "bubble"
+  },
+  {
+    "id": 4,
+    "name": "cloud"
+  },
+  {
+    "id": 5,
+    "name": "copper_fire_flame"
+  },
+  {
+    "id": 6,
+    "name": "crit"
+  },
+  {
+    "id": 7,
+    "name": "damage_indicator"
+  },
+  {
+    "id": 8,
+    "name": "dragon_breath"
+  },
+  {
+    "id": 9,
+    "name": "dripping_lava"
+  },
+  {
+    "id": 10,
+    "name": "falling_lava"
+  },
+  {
+    "id": 11,
+    "name": "landing_lava"
+  },
+  {
+    "id": 12,
+    "name": "dripping_water"
+  },
+  {
+    "id": 13,
+    "name": "falling_water"
+  },
+  {
+    "id": 14,
+    "name": "dust"
+  },
+  {
+    "id": 15,
+    "name": "dust_color_transition"
+  },
+  {
+    "id": 16,
+    "name": "effect"
+  },
+  {
+    "id": 17,
+    "name": "elder_guardian"
+  },
+  {
+    "id": 18,
+    "name": "enchanted_hit"
+  },
+  {
+    "id": 19,
+    "name": "enchant"
+  },
+  {
+    "id": 20,
+    "name": "end_rod"
+  },
+  {
+    "id": 21,
+    "name": "entity_effect"
+  },
+  {
+    "id": 22,
+    "name": "explosion_emitter"
+  },
+  {
+    "id": 23,
+    "name": "explosion"
+  },
+  {
+    "id": 24,
+    "name": "gust"
+  },
+  {
+    "id": 25,
+    "name": "small_gust"
+  },
+  {
+    "id": 26,
+    "name": "gust_emitter_large"
+  },
+  {
+    "id": 27,
+    "name": "gust_emitter_small"
+  },
+  {
+    "id": 28,
+    "name": "sonic_boom"
+  },
+  {
+    "id": 29,
+    "name": "falling_dust"
+  },
+  {
+    "id": 30,
+    "name": "firework"
+  },
+  {
+    "id": 31,
+    "name": "fishing"
+  },
+  {
+    "id": 32,
+    "name": "flame"
+  },
+  {
+    "id": 33,
+    "name": "infested"
+  },
+  {
+    "id": 34,
+    "name": "cherry_leaves"
+  },
+  {
+    "id": 35,
+    "name": "pale_oak_leaves"
+  },
+  {
+    "id": 36,
+    "name": "tinted_leaves"
+  },
+  {
+    "id": 37,
+    "name": "sculk_soul"
+  },
+  {
+    "id": 38,
+    "name": "sculk_charge"
+  },
+  {
+    "id": 39,
+    "name": "sculk_charge_pop"
+  },
+  {
+    "id": 40,
+    "name": "soul_fire_flame"
+  },
+  {
+    "id": 41,
+    "name": "soul"
+  },
+  {
+    "id": 42,
+    "name": "flash"
+  },
+  {
+    "id": 43,
+    "name": "happy_villager"
+  },
+  {
+    "id": 44,
+    "name": "composter"
+  },
+  {
+    "id": 45,
+    "name": "heart"
+  },
+  {
+    "id": 46,
+    "name": "instant_effect"
+  },
+  {
+    "id": 47,
+    "name": "item"
+  },
+  {
+    "id": 48,
+    "name": "vibration"
+  },
+  {
+    "id": 49,
+    "name": "trail"
+  },
+  {
+    "id": 50,
+    "name": "pause_mob_growth"
+  },
+  {
+    "id": 51,
+    "name": "reset_mob_growth"
+  },
+  {
+    "id": 52,
+    "name": "item_slime"
+  },
+  {
+    "id": 53,
+    "name": "item_cobweb"
+  },
+  {
+    "id": 54,
+    "name": "item_snowball"
+  },
+  {
+    "id": 55,
+    "name": "large_smoke"
+  },
+  {
+    "id": 56,
+    "name": "lava"
+  },
+  {
+    "id": 57,
+    "name": "mycelium"
+  },
+  {
+    "id": 58,
+    "name": "note"
+  },
+  {
+    "id": 59,
+    "name": "poof"
+  },
+  {
+    "id": 60,
+    "name": "portal"
+  },
+  {
+    "id": 61,
+    "name": "rain"
+  },
+  {
+    "id": 62,
+    "name": "smoke"
+  },
+  {
+    "id": 63,
+    "name": "white_smoke"
+  },
+  {
+    "id": 64,
+    "name": "sneeze"
+  },
+  {
+    "id": 65,
+    "name": "spit"
+  },
+  {
+    "id": 66,
+    "name": "squid_ink"
+  },
+  {
+    "id": 67,
+    "name": "sweep_attack"
+  },
+  {
+    "id": 68,
+    "name": "totem_of_undying"
+  },
+  {
+    "id": 69,
+    "name": "underwater"
+  },
+  {
+    "id": 70,
+    "name": "splash"
+  },
+  {
+    "id": 71,
+    "name": "witch"
+  },
+  {
+    "id": 72,
+    "name": "bubble_pop"
+  },
+  {
+    "id": 73,
+    "name": "current_down"
+  },
+  {
+    "id": 74,
+    "name": "bubble_column_up"
+  },
+  {
+    "id": 75,
+    "name": "nautilus"
+  },
+  {
+    "id": 76,
+    "name": "dolphin"
+  },
+  {
+    "id": 77,
+    "name": "campfire_cosy_smoke"
+  },
+  {
+    "id": 78,
+    "name": "campfire_signal_smoke"
+  },
+  {
+    "id": 79,
+    "name": "dripping_honey"
+  },
+  {
+    "id": 80,
+    "name": "falling_honey"
+  },
+  {
+    "id": 81,
+    "name": "landing_honey"
+  },
+  {
+    "id": 82,
+    "name": "falling_nectar"
+  },
+  {
+    "id": 83,
+    "name": "falling_spore_blossom"
+  },
+  {
+    "id": 84,
+    "name": "ash"
+  },
+  {
+    "id": 85,
+    "name": "crimson_spore"
+  },
+  {
+    "id": 86,
+    "name": "warped_spore"
+  },
+  {
+    "id": 87,
+    "name": "spore_blossom_air"
+  },
+  {
+    "id": 88,
+    "name": "dripping_obsidian_tear"
+  },
+  {
+    "id": 89,
+    "name": "falling_obsidian_tear"
+  },
+  {
+    "id": 90,
+    "name": "landing_obsidian_tear"
+  },
+  {
+    "id": 91,
+    "name": "reverse_portal"
+  },
+  {
+    "id": 92,
+    "name": "white_ash"
+  },
+  {
+    "id": 93,
+    "name": "small_flame"
+  },
+  {
+    "id": 94,
+    "name": "snowflake"
+  },
+  {
+    "id": 95,
+    "name": "dripping_dripstone_lava"
+  },
+  {
+    "id": 96,
+    "name": "falling_dripstone_lava"
+  },
+  {
+    "id": 97,
+    "name": "dripping_dripstone_water"
+  },
+  {
+    "id": 98,
+    "name": "falling_dripstone_water"
+  },
+  {
+    "id": 99,
+    "name": "glow_squid_ink"
+  },
+  {
+    "id": 100,
+    "name": "glow"
+  },
+  {
+    "id": 101,
+    "name": "wax_on"
+  },
+  {
+    "id": 102,
+    "name": "wax_off"
+  },
+  {
+    "id": 103,
+    "name": "electric_spark"
+  },
+  {
+    "id": 104,
+    "name": "scrape"
+  },
+  {
+    "id": 105,
+    "name": "shriek"
+  },
+  {
+    "id": 106,
+    "name": "egg_crack"
+  },
+  {
+    "id": 107,
+    "name": "dust_plume"
+  },
+  {
+    "id": 108,
+    "name": "trial_spawner_detection"
+  },
+  {
+    "id": 109,
+    "name": "trial_spawner_detection_ominous"
+  },
+  {
+    "id": 110,
+    "name": "vault_connection"
+  },
+  {
+    "id": 111,
+    "name": "dust_pillar"
+  },
+  {
+    "id": 112,
+    "name": "ominous_spawning"
+  },
+  {
+    "id": 113,
+    "name": "raid_omen"
+  },
+  {
+    "id": 114,
+    "name": "trial_omen"
+  },
+  {
+    "id": 115,
+    "name": "block_crumble"
+  },
+  {
+    "id": 116,
+    "name": "firefly"
+  }
+]

mc/data/minecraft-data/pc/26.1/tints.json

@@ -0,0 +1,465 @@
+{
+  "grass": {
+    "data": [
+      {
+        "keys": [
+          "badlands",
+          "eroded_badlands",
+          "wooded_badlands"
+        ],
+        "color": -7306931
+      },
+      {
+        "keys": [
+          "bamboo_jungle",
+          "basalt_deltas",
+          "beach",
+          "birch_forest",
+          "cold_ocean",
+          "crimson_forest",
+          "deep_cold_ocean",
+          "deep_dark",
+          "deep_frozen_ocean",
+          "deep_lukewarm_ocean",
+          "deep_ocean",
+          "desert",
+          "dripstone_caves",
+          "end_barrens",
+          "end_highlands",
+          "end_midlands",
+          "flower_forest",
+          "forest",
+          "frozen_ocean",
+          "frozen_peaks",
+          "frozen_river",
+          "grove",
+          "ice_spikes",
+          "jagged_peaks",
+          "jungle",
+          "lukewarm_ocean",
+          "lush_caves",
+          "meadow",
+          "mushroom_fields",
+          "nether_wastes",
+          "ocean",
+          "old_growth_birch_forest",
+          "old_growth_pine_taiga",
+          "old_growth_spruce_taiga",
+          "plains",
+          "river",
+          "savanna",
+          "savanna_plateau",
+          "small_end_islands",
+          "snowy_beach",
+          "snowy_plains",
+          "snowy_slopes",
+          "snowy_taiga",
+          "soul_sand_valley",
+          "sparse_jungle",
+          "stony_peaks",
+          "stony_shore",
+          "sunflower_plains",
+          "taiga",
+          "the_end",
+          "the_void",
+          "warm_ocean",
+          "warped_forest",
+          "windswept_forest",
+          "windswept_gravelly_hills",
+          "windswept_hills",
+          "windswept_savanna"
+        ],
+        "color": 0
+      },
+      {
+        "keys": [
+          "cherry_grove"
+        ],
+        "color": -4793503
+      },
+      {
+        "keys": [
+          "dark_forest"
+        ],
+        "color": -15459835
+      },
+      {
+        "keys": [
+          "mangrove_swamp",
+          "swamp"
+        ],
+        "color": -9801671
+      },
+      {
+        "keys": [
+          "pale_garden"
+        ],
+        "color": -8945038
+      }
+    ]
+  },
+  "foliage": {
+    "data": [
+      {
+        "keys": [
+          "badlands",
+          "eroded_badlands",
+          "wooded_badlands"
+        ],
+        "color": -6389427
+      },
+      {
+        "keys": [
+          "bamboo_jungle",
+          "basalt_deltas",
+          "beach",
+          "birch_forest",
+          "cold_ocean",
+          "crimson_forest",
+          "dark_forest",
+          "deep_cold_ocean",
+          "deep_dark",
+          "deep_frozen_ocean",
+          "deep_lukewarm_ocean",
+          "deep_ocean",
+          "desert",
+          "dripstone_caves",
+          "end_barrens",
+          "end_highlands",
+          "end_midlands",
+          "flower_forest",
+          "forest",
+          "frozen_ocean",
+          "frozen_peaks",
+          "frozen_river",
+          "grove",
+          "ice_spikes",
+          "jagged_peaks",
+          "jungle",
+          "lukewarm_ocean",
+          "lush_caves",
+          "meadow",
+          "mushroom_fields",
+          "nether_wastes",
+          "ocean",
+          "old_growth_birch_forest",
+          "old_growth_pine_taiga",
+          "old_growth_spruce_taiga",
+          "plains",
+          "river",
+          "savanna",
+          "savanna_plateau",
+          "small_end_islands",
+          "snowy_beach",
+          "snowy_plains",
+          "snowy_slopes",
+          "snowy_taiga",
+          "soul_sand_valley",
+          "sparse_jungle",
+          "stony_peaks",
+          "stony_shore",
+          "sunflower_plains",
+          "taiga",
+          "the_end",
+          "the_void",
+          "warm_ocean",
+          "warped_forest",
+          "windswept_forest",
+          "windswept_gravelly_hills",
+          "windswept_hills",
+          "windswept_savanna"
+        ],
+        "color": 0
+      },
+      {
+        "keys": [
+          "cherry_grove"
+        ],
+        "color": -4793503
+      },
+      {
+        "keys": [
+          "mangrove_swamp"
+        ],
+        "color": -7491289
+      },
+      {
+        "keys": [
+          "pale_garden"
+        ],
+        "color": -7893642
+      },
+      {
+        "keys": [
+          "swamp"
+        ],
+        "color": -9801671
+      }
+    ]
+  },
+  "water": {
+    "data": [
+      {
+        "keys": [
+          "badlands",
+          "bamboo_jungle",
+          "basalt_deltas",
+          "beach",
+          "birch_forest",
+          "crimson_forest",
+          "dark_forest",
+          "deep_dark",
+          "deep_ocean",
+          "desert",
+          "dripstone_caves",
+          "end_barrens",
+          "end_highlands",
+          "end_midlands",
+          "eroded_badlands",
+          "flower_forest",
+          "forest",
+          "frozen_peaks",
+          "grove",
+          "ice_spikes",
+          "jagged_peaks",
+          "jungle",
+          "lush_caves",
+          "mushroom_fields",
+          "nether_wastes",
+          "ocean",
+          "old_growth_birch_forest",
+          "old_growth_pine_taiga",
+          "old_growth_spruce_taiga",
+          "plains",
+          "river",
+          "savanna",
+          "savanna_plateau",
+          "small_end_islands",
+          "snowy_plains",
+          "snowy_slopes",
+          "soul_sand_valley",
+          "sparse_jungle",
+          "stony_peaks",
+          "stony_shore",
+          "sunflower_plains",
+          "taiga",
+          "the_end",
+          "the_void",
+          "warped_forest",
+          "windswept_forest",
+          "windswept_gravelly_hills",
+          "windswept_hills",
+          "windswept_savanna",
+          "wooded_badlands"
+        ],
+        "color": -12618012
+      },
+      {
+        "keys": [
+          "cherry_grove"
+        ],
+        "color": -10635281
+      },
+      {
+        "keys": [
+          "cold_ocean",
+          "deep_cold_ocean",
+          "snowy_beach",
+          "snowy_taiga"
+        ],
+        "color": -12757034
+      },
+      {
+        "keys": [
+          "deep_frozen_ocean",
+          "frozen_ocean",
+          "frozen_river"
+        ],
+        "color": -13027127
+      },
+      {
+        "keys": [
+          "deep_lukewarm_ocean",
+          "lukewarm_ocean"
+        ],
+        "color": -12210702
+      },
+      {
+        "keys": [
+          "mangrove_swamp"
+        ],
+        "color": -12944790
+      },
+      {
+        "keys": [
+          "meadow"
+        ],
+        "color": -15839537
+      },
+      {
+        "keys": [
+          "pale_garden"
+        ],
+        "color": -9008995
+      },
+      {
+        "keys": [
+          "swamp"
+        ],
+        "color": -10388636
+      },
+      {
+        "keys": [
+          "warm_ocean"
+        ],
+        "color": -12331538
+      }
+    ]
+  },
+  "redstone": {
+    "data": [
+      {
+        "keys": [
+          0
+        ],
+        "color": 4980736
+      },
+      {
+        "keys": [
+          1
+        ],
+        "color": 7340032
+      },
+      {
+        "keys": [
+          2
+        ],
+        "color": 7995392
+      },
+      {
+        "keys": [
+          3
+        ],
+        "color": 8650752
+      },
+      {
+        "keys": [
+          4
+        ],
+        "color": 9306112
+      },
+      {
+        "keys": [
+          5
+        ],
+        "color": 10027008
+      },
+      {
+        "keys": [
+          6
+        ],
+        "color": 10682368
+      },
+      {
+        "keys": [
+          7
+        ],
+        "color": 11337728
+      },
+      {
+        "keys": [
+          8
+        ],
+        "color": 11993088
+      },
+      {
+        "keys": [
+          9
+        ],
+        "color": 12648448
+      },
+      {
+        "keys": [
+          10
+        ],
+        "color": 13369344
+      },
+      {
+        "keys": [
+          11
+        ],
+        "color": 14024704
+      },
+      {
+        "keys": [
+          12
+        ],
+        "color": 14680064
+      },
+      {
+        "keys": [
+          13
+        ],
+        "color": 15336960
+      },
+      {
+        "keys": [
+          14
+        ],
+        "color": 15997696
+      },
+      {
+        "keys": [
+          15
+        ],
+        "color": 16724480
+      }
+    ]
+  },
+  "constant": {
+    "data": [
+      {
+        "keys": [
+          "birch_leaves"
+        ],
+        "color": -8345771
+      },
+      {
+        "keys": [
+          "spruce_leaves"
+        ],
+        "color": -10380959
+      },
+      {
+        "keys": [
+          "lily_pad"
+        ],
+        "color": -14647248
+      },
+      {
+        "keys": [
+          "attached_melon_stem"
+        ],
+        "color": -2046180
+      },
+      {
+        "keys": [
+          "attached_pumpkin_stem"
+        ],
+        "color": -2046180
+      },
+      {
+        "keys": [
+          "melon_stem"
+        ],
+        "color": -16711936
+      },
+      {
+        "keys": [
+          "pumpkin_stem"
+        ],
+        "color": -16711936
+      }
+    ]
+  }
+}

mc/data/minecraft-data/pc/26.1/version.json

@@ -0,0 +1,6 @@
+{
+  "version": 775,
+  "minecraftVersion": "26.1",
+  "majorVersion": "26.1",
+  "releaseType": "release"
+}

mc/data/minecraft-data/pc/26.2/attributes.json

@@ -0,0 +1,247 @@
+[
+  {
+    "name": "armor",
+    "resource": "minecraft:armor",
+    "min": 0.0,
+    "max": 30.0,
+    "default": 0.0
+  },
+  {
+    "name": "armorToughness",
+    "resource": "minecraft:armor_toughness",
+    "min": 0.0,
+    "max": 20.0,
+    "default": 0.0
+  },
+  {
+    "name": "attackDamage",
+    "resource": "minecraft:attack_damage",
+    "min": 0.0,
+    "max": 2048.0,
+    "default": 2.0
+  },
+  {
+    "name": "attackKnockback",
+    "resource": "minecraft:attack_knockback",
+    "min": 0.0,
+    "max": 5.0,
+    "default": 0.0
+  },
+  {
+    "name": "attackSpeed",
+    "resource": "minecraft:attack_speed",
+    "min": 0.0,
+    "max": 1024.0,
+    "default": 4.0
+  },
+  {
+    "name": "blockBreakSpeed",
+    "resource": "minecraft:block_break_speed",
+    "min": 0.0,
+    "max": 1024.0,
+    "default": 1.0
+  },
+  {
+    "name": "blockInteractionRange",
+    "resource": "minecraft:block_interaction_range",
+    "min": 0.0,
+    "max": 64.0,
+    "default": 4.5
+  },
+  {
+    "name": "burningTime",
+    "resource": "minecraft:burning_time",
+    "min": 0.0,
+    "max": 1024.0,
+    "default": 1.0
+  },
+  {
+    "name": "cameraDistance",
+    "resource": "minecraft:camera_distance",
+    "min": 0.0,
+    "max": 32.0,
+    "default": 4.0
+  },
+  {
+    "name": "explosionKnockbackResistance",
+    "resource": "minecraft:explosion_knockback_resistance",
+    "min": 0.0,
+    "max": 1.0,
+    "default": 0.0
+  },
+  {
+    "name": "entityInteractionRange",
+    "resource": "minecraft:entity_interaction_range",
+    "min": 0.0,
+    "max": 64.0,
+    "default": 3.0
+  },
+  {
+    "name": "fallDamageMultiplier",
+    "resource": "minecraft:fall_damage_multiplier",
+    "min": 0.0,
+    "max": 100.0,
+    "default": 1.0
+  },
+  {
+    "name": "flyingSpeed",
+    "resource": "minecraft:flying_speed",
+    "min": 0.0,
+    "max": 1024.0,
+    "default": 0.4
+  },
+  {
+    "name": "followRange",
+    "resource": "minecraft:follow_range",
+    "min": 0.0,
+    "max": 2048.0,
+    "default": 32.0
+  },
+  {
+    "name": "gravity",
+    "resource": "minecraft:gravity",
+    "min": -1.0,
+    "max": 1.0,
+    "default": 0.08
+  },
+  {
+    "name": "jumpStrength",
+    "resource": "minecraft:jump_strength",
+    "min": 0.0,
+    "max": 32.0,
+    "default": 0.41999998688697815
+  },
+  {
+    "name": "knockbackResistance",
+    "resource": "minecraft:knockback_resistance",
+    "min": 0.0,
+    "max": 1.0,
+    "default": 0.0
+  },
+  {
+    "name": "luck",
+    "resource": "minecraft:luck",
+    "min": -1024.0,
+    "max": 1024.0,
+    "default": 0.0
+  },
+  {
+    "name": "maxAbsorption",
+    "resource": "minecraft:max_absorption",
+    "min": 0.0,
+    "max": 2048.0,
+    "default": 0.0
+  },
+  {
+    "name": "maxHealth",
+    "resource": "minecraft:max_health",
+    "min": 1.0,
+    "max": 1024.0,
+    "default": 20.0
+  },
+  {
+    "name": "miningEfficiency",
+    "resource": "minecraft:mining_efficiency",
+    "min": 0.0,
+    "max": 1024.0,
+    "default": 0.0
+  },
+  {
+    "name": "movementEfficiency",
+    "resource": "minecraft:movement_efficiency",
+    "min": 0.0,
+    "max": 1.0,
+    "default": 0.0
+  },
+  {
+    "name": "movementSpeed",
+    "resource": "minecraft:movement_speed",
+    "min": 0.0,
+    "max": 1024.0,
+    "default": 0.7
+  },
+  {
+    "name": "oxygenBonus",
+    "resource": "minecraft:oxygen_bonus",
+    "min": 0.0,
+    "max": 1024.0,
+    "default": 0.0
+  },
+  {
+    "name": "safeFallDistance",
+    "resource": "minecraft:safe_fall_distance",
+    "min": -1024.0,
+    "max": 1024.0,
+    "default": 3.0
+  },
+  {
+    "name": "scale",
+    "resource": "minecraft:scale",
+    "min": 0.0625,
+    "max": 16.0,
+    "default": 1.0
+  },
+  {
+    "name": "sneakingSpeed",
+    "resource": "minecraft:sneaking_speed",
+    "min": 0.0,
+    "max": 1.0,
+    "default": 0.3
+  },
+  {
+    "name": "spawnReinforcements",
+    "resource": "minecraft:spawn_reinforcements",
+    "min": 0.0,
+    "max": 1.0,
+    "default": 0.0
+  },
+  {
+    "name": "stepHeight",
+    "resource": "minecraft:step_height",
+    "min": 0.0,
+    "max": 10.0,
+    "default": 0.6
+  },
+  {
+    "name": "submergedMiningSpeed",
+    "resource": "minecraft:submerged_mining_speed",
+    "min": 0.0,
+    "max": 20.0,
+    "default": 0.2
+  },
+  {
+    "name": "sweepingDamageRatio",
+    "resource": "minecraft:sweeping_damage_ratio",
+    "min": 0.0,
+    "max": 1.0,
+    "default": 0.0
+  },
+  {
+    "name": "temptRange",
+    "resource": "minecraft:tempt_range",
+    "min": 0.0,
+    "max": 2048.0,
+    "default": 10.0
+  },
+  {
+    "name": "waterMovementEfficiency",
+    "resource": "minecraft:water_movement_efficiency",
+    "min": 0.0,
+    "max": 1.0,
+    "default": 0.0
+  },
+  {
+    "name": "waypointTransmitRange",
+    "resource": "minecraft:waypoint_transmit_range",
+    "min": 0.0,
+    "max": 6.0E7,
+    "default": 0.0
+  },
+  {
+    "name": "waypointReceiveRange",
+    "resource": "minecraft:waypoint_receive_range",
+    "min": 0.0,
+    "max": 6.0E7,
+    "default": 0.0
+  }
+]

mc/data/minecraft-data/pc/26.2/biomes.json

@@ -0,0 +1,652 @@
+[
+  {
+    "id": 0,
+    "name": "badlands",
+    "category": "mesa",
+    "temperature": 2.0,
+    "has_precipitation": false,
+    "dimension": "overworld",
+    "displayName": "Badlands",
+    "color": 7254527
+  },
+  {
+    "id": 1,
+    "name": "bamboo_jungle",
+    "category": "jungle",
+    "temperature": 0.95,
+    "has_precipitation": true,
+    "dimension": "overworld",
+    "displayName": "Bamboo Jungle",
+    "color": 7842047
+  },
+  {
+    "id": 2,
+    "name": "basalt_deltas",
+    "category": "nether",
+    "temperature": 2.0,
+    "has_precipitation": false,
+    "dimension": "nether",
+    "displayName": "Basalt Deltas",
+    "color": 0
+  },
+  {
+    "id": 3,
+    "name": "beach",
+    "category": "beach",
+    "temperature": 0.8,
+    "has_precipitation": true,
+    "dimension": "overworld",
+    "displayName": "Beach",
+    "color": 7907327
+  },
+  {
+    "id": 4,
+    "name": "birch_forest",
+    "category": "forest",
+    "temperature": 0.6,
+    "has_precipitation": true,
+    "dimension": "overworld",
+    "displayName": "Birch Forest",
+    "color": 8037887
+  },
+  {
+    "id": 5,
+    "name": "cherry_grove",
+    "category": "forest",
+    "temperature": 0.5,
+    "has_precipitation": true,
+    "dimension": "overworld",
+    "displayName": "Cherry Grove",
+    "color": 8103167
+  },
+  {
+    "id": 6,
+    "name": "cold_ocean",
+    "category": "ocean",
+    "temperature": 0.5,
+    "has_precipitation": true,
+    "dimension": "overworld",
+    "displayName": "Cold Ocean",
+    "color": 8103167
+  },
+  {
+    "id": 7,
+    "name": "crimson_forest",
+    "category": "nether",
+    "temperature": 2.0,
+    "has_precipitation": false,
+    "dimension": "nether",
+    "displayName": "Crimson Forest",
+    "color": 0
+  },
+  {
+    "id": 8,
+    "name": "dark_forest",
+    "category": "forest",
+    "temperature": 0.7,
+    "has_precipitation": true,
+    "dimension": "overworld",
+    "displayName": "Dark Forest",
+    "color": 7972607
+  },
+  {
+    "id": 9,
+    "name": "deep_cold_ocean",
+    "category": "ocean",
+    "temperature": 0.5,
+    "has_precipitation": true,
+    "dimension": "overworld",
+    "displayName": "Deep Cold Ocean",
+    "color": 8103167
+  },
+  {
+    "id": 10,
+    "name": "deep_dark",
+    "category": "underground",
+    "temperature": 0.8,
+    "has_precipitation": true,
+    "dimension": "overworld",
+    "displayName": "Deep Dark",
+    "color": 7907327
+  },
+  {
+    "id": 11,
+    "name": "deep_frozen_ocean",
+    "category": "ocean",
+    "temperature": 0.5,
+    "has_precipitation": true,
+    "dimension": "overworld",
+    "displayName": "Deep Frozen Ocean",
+    "color": 8103167
+  },
+  {
+    "id": 12,
+    "name": "deep_lukewarm_ocean",
+    "category": "ocean",
+    "temperature": 0.5,
+    "has_precipitation": true,
+    "dimension": "overworld",
+    "displayName": "Deep Lukewarm Ocean",
+    "color": 8103167
+  },
+  {
+    "id": 13,
+    "name": "deep_ocean",
+    "category": "ocean",
+    "temperature": 0.5,
+    "has_precipitation": true,
+    "dimension": "overworld",
+    "displayName": "Deep Ocean",
+    "color": 8103167
+  },
+  {
+    "id": 14,
+    "name": "desert",
+    "category": "desert",
+    "temperature": 2.0,
+    "has_precipitation": false,
+    "dimension": "overworld",
+    "displayName": "Desert",
+    "color": 7254527
+  },
+  {
+    "id": 15,
+    "name": "dripstone_caves",
+    "category": "underground",
+    "temperature": 0.8,
+    "has_precipitation": true,
+    "dimension": "overworld",
+    "displayName": "Dripstone Caves",
+    "color": 7907327
+  },
+  {
+    "id": 16,
+    "name": "end_barrens",
+    "category": "the_end",
+    "temperature": 0.5,
+    "has_precipitation": false,
+    "dimension": "end",
+    "displayName": "End Barrens",
+    "color": 0
+  },
+  {
+    "id": 17,
+    "name": "end_highlands",
+    "category": "the_end",
+    "temperature": 0.5,
+    "has_precipitation": false,
+    "dimension": "end",
+    "displayName": "End Highlands",
+    "color": 0
+  },
+  {
+    "id": 18,
+    "name": "end_midlands",
+    "category": "the_end",
+    "temperature": 0.5,
+    "has_precipitation": false,
+    "dimension": "end",
+    "displayName": "End Midlands",
+    "color": 0
+  },
+  {
+    "id": 19,
+    "name": "eroded_badlands",
+    "category": "mesa",
+    "temperature": 2.0,
+    "has_precipitation": false,
+    "dimension": "overworld",
+    "displayName": "Eroded Badlands",
+    "color": 7254527
+  },
+  {
+    "id": 20,
+    "name": "flower_forest",
+    "category": "forest",
+    "temperature": 0.7,
+    "has_precipitation": true,
+    "dimension": "overworld",
+    "displayName": "Flower Forest",
+    "color": 7972607
+  },
+  {
+    "id": 21,
+    "name": "forest",
+    "category": "forest",
+    "temperature": 0.7,
+    "has_precipitation": true,
+    "dimension": "overworld",
+    "displayName": "Forest",
+    "color": 7972607
+  },
+  {
+    "id": 22,
+    "name": "frozen_ocean",
+    "category": "ocean",
+    "temperature": 0.0,
+    "has_precipitation": true,
+    "dimension": "overworld",
+    "displayName": "Frozen Ocean",
+    "color": 8364543
+  },
+  {
+    "id": 23,
+    "name": "frozen_peaks",
+    "category": "ice",
+    "temperature": -0.7,
+    "has_precipitation": true,
+    "dimension": "overworld",
+    "displayName": "Frozen Peaks",
+    "color": 8756735
+  },
+  {
+    "id": 24,
+    "name": "frozen_river",
+    "category": "ice",
+    "temperature": 0.0,
+    "has_precipitation": true,
+    "dimension": "overworld",
+    "displayName": "Frozen River",
+    "color": 8364543
+  },
+  {
+    "id": 25,
+    "name": "grove",
+    "category": "forest",
+    "temperature": -0.2,
+    "has_precipitation": true,
+    "dimension": "overworld",
+    "displayName": "Grove",
+    "color": 8495359
+  },
+  {
+    "id": 26,
+    "name": "ice_spikes",
+    "category": "ice",
+    "temperature": 0.0,
+    "has_precipitation": true,
+    "dimension": "overworld",
+    "displayName": "Ice Spikes",
+    "color": 8364543
+  },
+  {
+    "id": 27,
+    "name": "jagged_peaks",
+    "category": "mountain",
+    "temperature": -0.7,
+    "has_precipitation": true,
+    "dimension": "overworld",
+    "displayName": "Jagged Peaks",
+    "color": 8756735
+  },
+  {
+    "id": 28,
+    "name": "jungle",
+    "category": "jungle",
+    "temperature": 0.95,
+    "has_precipitation": true,
+    "dimension": "overworld",
+    "displayName": "Jungle",
+    "color": 7842047
+  },
+  {
+    "id": 29,
+    "name": "lukewarm_ocean",
+    "category": "ocean",
+    "temperature": 0.5,
+    "has_precipitation": true,
+    "dimension": "overworld",
+    "displayName": "Lukewarm Ocean",
+    "color": 8103167
+  },
+  {
+    "id": 30,
+    "name": "lush_caves",
+    "category": "underground",
+    "temperature": 0.5,
+    "has_precipitation": true,
+    "dimension": "overworld",
+    "displayName": "Lush Caves",
+    "color": 8103167
+  },
+  {
+    "id": 31,
+    "name": "mangrove_swamp",
+    "category": "forest",
+    "temperature": 0.8,
+    "has_precipitation": true,
+    "dimension": "overworld",
+    "displayName": "Mangrove Swamp",
+    "color": 7907327
+  },
+  {
+    "id": 32,
+    "name": "meadow",
+    "category": "mountain",
+    "temperature": 0.5,
+    "has_precipitation": true,
+    "dimension": "overworld",
+    "displayName": "Meadow",
+    "color": 8103167
+  },
+  {
+    "id": 33,
+    "name": "mushroom_fields",
+    "category": "mushroom",
+    "temperature": 0.9,
+    "has_precipitation": true,
+    "dimension": "overworld",
+    "displayName": "Mushroom Fields",
+    "color": 7842047
+  },
+  {
+    "id": 34,
+    "name": "nether_wastes",
+    "category": "nether",
+    "temperature": 2.0,
+    "has_precipitation": false,
+    "dimension": "nether",
+    "displayName": "Nether Wastes",
+    "color": 0
+  },
+  {
+    "id": 35,
+    "name": "ocean",
+    "category": "ocean",
+    "temperature": 0.5,
+    "has_precipitation": true,
+    "dimension": "overworld",
+    "displayName": "Ocean",
+    "color": 8103167
+  },
+  {
+    "id": 36,
+    "name": "old_growth_birch_forest",
+    "category": "forest",
+    "temperature": 0.6,
+    "has_precipitation": true,
+    "dimension": "overworld",
+    "displayName": "Old Growth Birch Forest",
+    "color": 8037887
+  },
+  {
+    "id": 37,
+    "name": "old_growth_pine_taiga",
+    "category": "taiga",
+    "temperature": 0.3,
+    "has_precipitation": true,
+    "dimension": "overworld",
+    "displayName": "Old Growth Pine Taiga",
+    "color": 8168447
+  },
+  {
+    "id": 38,
+    "name": "old_growth_spruce_taiga",
+    "category": "taiga",
+    "temperature": 0.25,
+    "has_precipitation": true,
+    "dimension": "overworld",
+    "displayName": "Old Growth Spruce Taiga",
+    "color": 8233983
+  },
+  {
+    "id": 39,
+    "name": "pale_garden",
+    "category": "none",
+    "temperature": 0.7,
+    "has_precipitation": true,
+    "dimension": "overworld",
+    "displayName": "Pale Garden",
+    "color": 12171705
+  },
+  {
+    "id": 40,
+    "name": "plains",
+    "category": "plains",
+    "temperature": 0.8,
+    "has_precipitation": true,
+    "dimension": "overworld",
+    "displayName": "Plains",
+    "color": 7907327
+  },
+  {
+    "id": 41,
+    "name": "river",
+    "category": "river",
+    "temperature": 0.5,
+    "has_precipitation": true,
+    "dimension": "overworld",
+    "displayName": "River",
+    "color": 8103167
+  },
+  {
+    "id": 42,
+    "name": "savanna",
+    "category": "savanna",
+    "temperature": 2.0,
+    "has_precipitation": false,
+    "dimension": "overworld",
+    "displayName": "Savanna",
+    "color": 7254527
+  },
+  {
+    "id": 43,
+    "name": "savanna_plateau",
+    "category": "savanna",
+    "temperature": 2.0,
+    "has_precipitation": false,
+    "dimension": "overworld",
+    "displayName": "Savanna Plateau",
+    "color": 7254527
+  },
+  {
+    "id": 44,
+    "name": "small_end_islands",
+    "category": "the_end",
+    "temperature": 0.5,
+    "has_precipitation": false,
+    "dimension": "end",
+    "displayName": "Small End Islands",
+    "color": 0
+  },
+  {
+    "id": 45,
+    "name": "snowy_beach",
+    "category": "beach",
+    "temperature": 0.05,
+    "has_precipitation": true,
+    "dimension": "overworld",
+    "displayName": "Snowy Beach",
+    "color": 8364543
+  },
+  {
+    "id": 46,
+    "name": "snowy_plains",
+    "category": "plains",
+    "temperature": 0.0,
+    "has_precipitation": true,
+    "dimension": "overworld",
+    "displayName": "Snowy Plains",
+    "color": 8364543
+  },
+  {
+    "id": 47,
+    "name": "snowy_slopes",
+    "category": "mountain",
+    "temperature": -0.3,
+    "has_precipitation": true,
+    "dimension": "overworld",
+    "displayName": "Snowy Slopes",
+    "color": 8560639
+  },
+  {
+    "id": 48,
+    "name": "snowy_taiga",
+    "category": "taiga",
+    "temperature": -0.5,
+    "has_precipitation": true,
+    "dimension": "overworld",
+    "displayName": "Snowy Taiga",
+    "color": 8625919
+  },
+  {
+    "id": 49,
+    "name": "soul_sand_valley",
+    "category": "nether",
+    "temperature": 2.0,
+    "has_precipitation": false,
+    "dimension": "nether",
+    "displayName": "Soul Sand Valley",
+    "color": 0
+  },
+  {
+    "id": 50,
+    "name": "sparse_jungle",
+    "category": "jungle",
+    "temperature": 0.95,
+    "has_precipitation": true,
+    "dimension": "overworld",
+    "displayName": "Sparse Jungle",
+    "color": 7842047
+  },
+  {
+    "id": 51,
+    "name": "stony_peaks",
+    "category": "mountain",
+    "temperature": 1.0,
+    "has_precipitation": true,
+    "dimension": "overworld",
+    "displayName": "Stony Peaks",
+    "color": 7776511
+  },
+  {
+    "id": 52,
+    "name": "stony_shore",
+    "category": "beach",
+    "temperature": 0.2,
+    "has_precipitation": true,
+    "dimension": "overworld",
+    "displayName": "Stony Shore",
+    "color": 8233727
+  },
+  {
+    "id": 53,
+    "name": "sunflower_plains",
+    "category": "plains",
+    "temperature": 0.8,
+    "has_precipitation": true,
+    "dimension": "overworld",
+    "displayName": "Sunflower Plains",
+    "color": 7907327
+  },
+  {
+    "id": 54,
+    "name": "swamp",
+    "category": "swamp",
+    "temperature": 0.8,
+    "has_precipitation": true,
+    "dimension": "overworld",
+    "displayName": "Swamp",
+    "color": 7907327
+  },
+  {
+    "id": 55,
+    "name": "taiga",
+    "category": "taiga",
+    "temperature": 0.25,
+    "has_precipitation": true,
+    "dimension": "overworld",
+    "displayName": "Taiga",
+    "color": 8233983
+  },
+  {
+    "id": 56,
+    "name": "the_end",
+    "category": "the_end",
+    "temperature": 0.5,
+    "has_precipitation": false,
+    "dimension": "end",
+    "displayName": "The End",
+    "color": 0
+  },
+  {
+    "id": 57,
+    "name": "the_void",
+    "category": "none",
+    "temperature": 0.5,
+    "has_precipitation": false,
+    "dimension": "overworld",
+    "displayName": "The Void",
+    "color": 8103167
+  },
+  {
+    "id": 58,
+    "name": "warm_ocean",
+    "category": "ocean",
+    "temperature": 0.5,
+    "has_precipitation": true,
+    "dimension": "overworld",
+    "displayName": "Warm Ocean",
+    "color": 8103167
+  },
+  {
+    "id": 59,
+    "name": "warped_forest",
+    "category": "nether",
+    "temperature": 2.0,
+    "has_precipitation": false,
+    "dimension": "nether",
+    "displayName": "Warped Forest",
+    "color": 0
+  },
+  {
+    "id": 60,
+    "name": "windswept_forest",
+    "category": "forest",
+    "temperature": 0.2,
+    "has_precipitation": true,
+    "dimension": "overworld",
+    "displayName": "Windswept Forest",
+    "color": 8233727
+  },
+  {
+    "id": 61,
+    "name": "windswept_gravelly_hills",
+    "category": "extreme_hills",
+    "temperature": 0.2,
+    "has_precipitation": true,
+    "dimension": "overworld",
+    "displayName": "Windswept Gravelly Hills",
+    "color": 8233727
+  },
+  {
+    "id": 62,
+    "name": "windswept_hills",
+    "category": "extreme_hills",
+    "temperature": 0.2,
+    "has_precipitation": true,
+    "dimension": "overworld",
+    "displayName": "Windswept Hills",
+    "color": 8233727
+  },
+  {
+    "id": 63,
+    "name": "windswept_savanna",
+    "category": "savanna",
+    "temperature": 2.0,
+    "has_precipitation": false,
+    "dimension": "overworld",
+    "displayName": "Windswept Savanna",
+    "color": 7254527
+  },
+  {
+    "id": 64,
+    "name": "wooded_badlands",
+    "category": "mesa",
+    "temperature": 2.0,
+    "has_precipitation": false,
+    "dimension": "overworld",
+    "displayName": "Wooded Badlands",
+    "color": 7254527
+  }
+]

mc/data/minecraft-data/pc/26.2/effects.json

@@ -0,0 +1,242 @@
+[
+  {
+    "id": 0,
+    "name": "Speed",
+    "displayName": "Speed",
+    "type": "good"
+  },
+  {
+    "id": 1,
+    "name": "Slowness",
+    "displayName": "Slowness",
+    "type": "bad"
+  },
+  {
+    "id": 2,
+    "name": "Haste",
+    "displayName": "Haste",
+    "type": "good"
+  },
+  {
+    "id": 3,
+    "name": "MiningFatigue",
+    "displayName": "Mining Fatigue",
+    "type": "bad"
+  },
+  {
+    "id": 4,
+    "name": "Strength",
+    "displayName": "Strength",
+    "type": "good"
+  },
+  {
+    "id": 5,
+    "name": "InstantHealth",
+    "displayName": "Instant Health",
+    "type": "good"
+  },
+  {
+    "id": 6,
+    "name": "InstantDamage",
+    "displayName": "Instant Damage",
+    "type": "bad"
+  },
+  {
+    "id": 7,
+    "name": "JumpBoost",
+    "displayName": "Jump Boost",
+    "type": "good"
+  },
+  {
+    "id": 8,
+    "name": "Nausea",
+    "displayName": "Nausea",
+    "type": "bad"
+  },
+  {
+    "id": 9,
+    "name": "Regeneration",
+    "displayName": "Regeneration",
+    "type": "good"
+  },
+  {
+    "id": 10,
+    "name": "Resistance",
+    "displayName": "Resistance",
+    "type": "good"
+  },
+  {
+    "id": 11,
+    "name": "FireResistance",
+    "displayName": "Fire Resistance",
+    "type": "good"
+  },
+  {
+    "id": 12,
+    "name": "WaterBreathing",
+    "displayName": "Water Breathing",
+    "type": "good"
+  },
+  {
+    "id": 13,
+    "name": "Invisibility",
+    "displayName": "Invisibility",
+    "type": "good"
+  },
+  {
+    "id": 14,
+    "name": "Blindness",
+    "displayName": "Blindness",
+    "type": "bad"
+  },
+  {
+    "id": 15,
+    "name": "NightVision",
+    "displayName": "Night Vision",
+    "type": "good"
+  },
+  {
+    "id": 16,
+    "name": "Hunger",
+    "displayName": "Hunger",
+    "type": "bad"
+  },
+  {
+    "id": 17,
+    "name": "Weakness",
+    "displayName": "Weakness",
+    "type": "bad"
+  },
+  {
+    "id": 18,
+    "name": "Poison",
+    "displayName": "Poison",
+    "type": "bad"
+  },
+  {
+    "id": 19,
+    "name": "Wither",
+    "displayName": "Wither",
+    "type": "bad"
+  },
+  {
+    "id": 20,
+    "name": "HealthBoost",
+    "displayName": "Health Boost",
+    "type": "good"
+  },
+  {
+    "id": 21,
+    "name": "Absorption",
+    "displayName": "Absorption",
+    "type": "good"
+  },
+  {
+    "id": 22,
+    "name": "Saturation",
+    "displayName": "Saturation",
+    "type": "good"
+  },
+  {
+    "id": 23,
+    "name": "Glowing",
+    "displayName": "Glowing",
+    "type": "bad"
+  },
+  {
+    "id": 24,
+    "name": "Levitation",
+    "displayName": "Levitation",
+    "type": "bad"
+  },
+  {
+    "id": 25,
+    "name": "Luck",
+    "displayName": "Luck",
+    "type": "good"
+  },
+  {
+    "id": 26,
+    "name": "BadLuck",
+    "displayName": "Bad Luck",
+    "type": "bad"
+  },
+  {
+    "id": 27,
+    "name": "SlowFalling",
+    "displayName": "Slow Falling",
+    "type": "good"
+  },
+  {
+    "id": 28,
+    "name": "ConduitPower",
+    "displayName": "Conduit Power",
+    "type": "good"
+  },
+  {
+    "id": 29,
+    "name": "DolphinsGrace",
+    "displayName": "Dolphin's Grace",
+    "type": "good"
+  },
+  {
+    "id": 30,
+    "name": "BadOmen",
+    "displayName": "Bad Omen",
+    "type": "bad"
+  },
+  {
+    "id": 31,
+    "name": "HeroOfTheVillage",
+    "displayName": "Hero of the Village",
+    "type": "good"
+  },
+  {
+    "id": 32,
+    "name": "Darkness",
+    "displayName": "Darkness",
+    "type": "bad"
+  },
+  {
+    "id": 33,
+    "name": "TrialOmen",
+    "displayName": "Trial Omen",
+    "type": "bad"
+  },
+  {
+    "id": 34,
+    "name": "RaidOmen",
+    "displayName": "Raid Omen",
+    "type": "bad"
+  },
+  {
+    "id": 35,
+    "name": "WindCharged",
+    "displayName": "Wind Charged",
+    "type": "bad"
+  },
+  {
+    "id": 36,
+    "name": "Weaving",
+    "displayName": "Weaving",
+    "type": "bad"
+  },
+  {
+    "id": 37,
+    "name": "Oozing",
+    "displayName": "Oozing",
+    "type": "bad"
+  },
+  {
+    "id": 38,
+    "name": "Infested",
+    "displayName": "Infested",
+    "type": "bad"
+  },
+  {
+    "id": 39,
+    "name": "BreathOfTheNautilus",
+    "displayName": "Breath of the Nautilus",
+    "type": "good"
+  }
+]

mc/data/minecraft-data/pc/26.2/enchantments.json

@@ -0,0 +1,980 @@
+[
+  {
+    "id": 0,
+    "name": "aqua_affinity",
+    "displayName": "Aqua Affinity",
+    "maxLevel": 1,
+    "minCost": {
+      "a": 0,
+      "b": 1
+    },
+    "maxCost": {
+      "a": 0,
+      "b": 1
+    },
+    "treasureOnly": false,
+    "curse": false,
+    "exclude": [],
+    "category": "head_armor",
+    "weight": 2,
+    "tradeable": true,
+    "discoverable": true
+  },
+  {
+    "id": 1,
+    "name": "bane_of_arthropods",
+    "displayName": "Bane of Arthropods",
+    "maxLevel": 5,
+    "minCost": {
+      "a": 4,
+      "b": 1
+    },
+    "maxCost": {
+      "a": 4,
+      "b": 1
+    },
+    "treasureOnly": false,
+    "curse": false,
+    "exclude": [
+      "breach",
+      "density",
+      "impaling",
+      "sharpness",
+      "smite"
+    ],
+    "category": "weapon",
+    "weight": 5,
+    "tradeable": true,
+    "discoverable": true
+  },
+  {
+    "id": 2,
+    "name": "binding_curse",
+    "displayName": "Curse of Binding",
+    "maxLevel": 1,
+    "minCost": {
+      "a": 0,
+      "b": 1
+    },
+    "maxCost": {
+      "a": 0,
+      "b": 1
+    },
+    "treasureOnly": true,
+    "curse": true,
+    "exclude": [],
+    "category": "equippable",
+    "weight": 1,
+    "tradeable": true,
+    "discoverable": true
+  },
+  {
+    "id": 3,
+    "name": "blast_protection",
+    "displayName": "Blast Protection",
+    "maxLevel": 4,
+    "minCost": {
+      "a": 3,
+      "b": 1
+    },
+    "maxCost": {
+      "a": 3,
+      "b": 1
+    },
+    "treasureOnly": false,
+    "curse": false,
+    "exclude": [
+      "fire_protection",
+      "projectile_protection",
+      "protection"
+    ],
+    "category": "armor",
+    "weight": 2,
+    "tradeable": true,
+    "discoverable": true
+  },
+  {
+    "id": 4,
+    "name": "breach",
+    "displayName": "Breach",
+    "maxLevel": 4,
+    "minCost": {
+      "a": 3,
+      "b": 1
+    },
+    "maxCost": {
+      "a": 3,
+      "b": 1
+    },
+    "treasureOnly": false,
+    "curse": false,
+    "exclude": [
+      "bane_of_arthropods",
+      "density",
+      "impaling",
+      "sharpness",
+      "smite"
+    ],
+    "category": "mace",
+    "weight": 2,
+    "tradeable": true,
+    "discoverable": true
+  },
+  {
+    "id": 5,
+    "name": "channeling",
+    "displayName": "Channeling",
+    "maxLevel": 1,
+    "minCost": {
+      "a": 0,
+      "b": 1
+    },
+    "maxCost": {
+      "a": 0,
+      "b": 1
+    },
+    "treasureOnly": false,
+    "curse": false,
+    "exclude": [
+      "riptide"
+    ],
+    "category": "trident",
+    "weight": 1,
+    "tradeable": true,
+    "discoverable": true
+  },
+  {
+    "id": 6,
+    "name": "density",
+    "displayName": "Density",
+    "maxLevel": 5,
+    "minCost": {
+      "a": 4,
+      "b": 1
+    },
+    "maxCost": {
+      "a": 4,
+      "b": 1
+    },
+    "treasureOnly": false,
+    "curse": false,
+    "exclude": [
+      "bane_of_arthropods",
+      "breach",
+      "impaling",
+      "sharpness",
+      "smite"
+    ],
+    "category": "mace",
+    "weight": 5,
+    "tradeable": true,
+    "discoverable": true
+  },
+  {
+    "id": 7,
+    "name": "depth_strider",
+    "displayName": "Depth Strider",
+    "maxLevel": 3,
+    "minCost": {
+      "a": 2,
+      "b": 1
+    },
+    "maxCost": {
+      "a": 2,
+      "b": 1
+    },
+    "treasureOnly": false,
+    "curse": false,
+    "exclude": [
+      "frost_walker"
+    ],
+    "category": "foot_armor",
+    "weight": 2,
+    "tradeable": true,
+    "discoverable": true
+  },
+  {
+    "id": 8,
+    "name": "efficiency",
+    "displayName": "Efficiency",
+    "maxLevel": 5,
+    "minCost": {
+      "a": 4,
+      "b": 1
+    },
+    "maxCost": {
+      "a": 4,
+      "b": 1
+    },
+    "treasureOnly": false,
+    "curse": false,
+    "exclude": [],
+    "category": "mining",
+    "weight": 10,
+    "tradeable": true,
+    "discoverable": true
+  },
+  {
+    "id": 9,
+    "name": "feather_falling",
+    "displayName": "Feather Falling",
+    "maxLevel": 4,
+    "minCost": {
+      "a": 3,
+      "b": 1
+    },
+    "maxCost": {
+      "a": 3,
+      "b": 1
+    },
+    "treasureOnly": false,
+    "curse": false,
+    "exclude": [],
+    "category": "foot_armor",
+    "weight": 5,
+    "tradeable": true,
+    "discoverable": true
+  },
+  {
+    "id": 10,
+    "name": "fire_aspect",
+    "displayName": "Fire Aspect",
+    "maxLevel": 2,
+    "minCost": {
+      "a": 1,
+      "b": 1
+    },
+    "maxCost": {
+      "a": 1,
+      "b": 1
+    },
+    "treasureOnly": false,
+    "curse": false,
+    "exclude": [],
+    "category": "fire_aspect",
+    "weight": 2,
+    "tradeable": true,
+    "discoverable": true
+  },
+  {
+    "id": 11,
+    "name": "fire_protection",
+    "displayName": "Fire Protection",
+    "maxLevel": 4,
+    "minCost": {
+      "a": 3,
+      "b": 1
+    },
+    "maxCost": {
+      "a": 3,
+      "b": 1
+    },
+    "treasureOnly": false,
+    "curse": false,
+    "exclude": [
+      "blast_protection",
+      "projectile_protection",
+      "protection"
+    ],
+    "category": "armor",
+    "weight": 5,
+    "tradeable": true,
+    "discoverable": true
+  },
+  {
+    "id": 12,
+    "name": "flame",
+    "displayName": "Flame",
+    "maxLevel": 1,
+    "minCost": {
+      "a": 0,
+      "b": 1
+    },
+    "maxCost": {
+      "a": 0,
+      "b": 1
+    },
+    "treasureOnly": false,
+    "curse": false,
+    "exclude": [],
+    "category": "bow",
+    "weight": 2,
+    "tradeable": true,
+    "discoverable": true
+  },
+  {
+    "id": 13,
+    "name": "fortune",
+    "displayName": "Fortune",
+    "maxLevel": 3,
+    "minCost": {
+      "a": 2,
+      "b": 1
+    },
+    "maxCost": {
+      "a": 2,
+      "b": 1
+    },
+    "treasureOnly": false,
+    "curse": false,
+    "exclude": [
+      "silk_touch"
+    ],
+    "category": "mining_loot",
+    "weight": 2,
+    "tradeable": true,
+    "discoverable": true
+  },
+  {
+    "id": 14,
+    "name": "frost_walker",
+    "displayName": "Frost Walker",
+    "maxLevel": 2,
+    "minCost": {
+      "a": 1,
+      "b": 1
+    },
+    "maxCost": {
+      "a": 1,
+      "b": 1
+    },
+    "treasureOnly": true,
+    "curse": false,
+    "exclude": [
+      "depth_strider"
+    ],
+    "category": "foot_armor",
+    "weight": 2,
+    "tradeable": true,
+    "discoverable": true
+  },
+  {
+    "id": 15,
+    "name": "impaling",
+    "displayName": "Impaling",
+    "maxLevel": 5,
+    "minCost": {
+      "a": 4,
+      "b": 1
+    },
+    "maxCost": {
+      "a": 4,
+      "b": 1
+    },
+    "treasureOnly": false,
+    "curse": false,
+    "exclude": [
+      "bane_of_arthropods",
+      "breach",
+      "density",
+      "sharpness",
+      "smite"
+    ],
+    "category": "trident",
+    "weight": 2,
+    "tradeable": true,
+    "discoverable": true
+  },
+  {
+    "id": 16,
+    "name": "infinity",
+    "displayName": "Infinity",
+    "maxLevel": 1,
+    "minCost": {
+      "a": 0,
+      "b": 1
+    },
+    "maxCost": {
+      "a": 0,
+      "b": 1
+    },
+    "treasureOnly": false,
+    "curse": false,
+    "exclude": [
+      "mending"
+    ],
+    "category": "bow",
+    "weight": 1,
+    "tradeable": true,
+    "discoverable": true
+  },
+  {
+    "id": 17,
+    "name": "knockback",
+    "displayName": "Knockback",
+    "maxLevel": 2,
+    "minCost": {
+      "a": 1,
+      "b": 1
+    },
+    "maxCost": {
+      "a": 1,
+      "b": 1
+    },
+    "treasureOnly": false,
+    "curse": false,
+    "exclude": [],
+    "category": "melee_weapon",
+    "weight": 5,
+    "tradeable": true,
+    "discoverable": true
+  },
+  {
+    "id": 18,
+    "name": "looting",
+    "displayName": "Looting",
+    "maxLevel": 3,
+    "minCost": {
+      "a": 2,
+      "b": 1
+    },
+    "maxCost": {
+      "a": 2,
+      "b": 1
+    },
+    "treasureOnly": false,
+    "curse": false,
+    "exclude": [],
+    "category": "melee_weapon",
+    "weight": 2,
+    "tradeable": true,
+    "discoverable": true
+  },
+  {
+    "id": 19,
+    "name": "loyalty",
+    "displayName": "Loyalty",
+    "maxLevel": 3,
+    "minCost": {
+      "a": 2,
+      "b": 1
+    },
+    "maxCost": {
+      "a": 2,
+      "b": 1
+    },
+    "treasureOnly": false,
+    "curse": false,
+    "exclude": [
+      "riptide"
+    ],
+    "category": "trident",
+    "weight": 5,
+    "tradeable": true,
+    "discoverable": true
+  },
+  {
+    "id": 20,
+    "name": "luck_of_the_sea",
+    "displayName": "Luck of the Sea",
+    "maxLevel": 3,
+    "minCost": {
+      "a": 2,
+      "b": 1
+    },
+    "maxCost": {
+      "a": 2,
+      "b": 1
+    },
+    "treasureOnly": false,
+    "curse": false,
+    "exclude": [],
+    "category": "fishing",
+    "weight": 2,
+    "tradeable": true,
+    "discoverable": true
+  },
+  {
+    "id": 21,
+    "name": "lunge",
+    "displayName": "Lunge",
+    "maxLevel": 3,
+    "minCost": {
+      "a": 2,
+      "b": 1
+    },
+    "maxCost": {
+      "a": 2,
+      "b": 1
+    },
+    "treasureOnly": false,
+    "curse": false,
+    "exclude": [],
+    "category": "lunge",
+    "weight": 5,
+    "tradeable": true,
+    "discoverable": true
+  },
+  {
+    "id": 22,
+    "name": "lure",
+    "displayName": "Lure",
+    "maxLevel": 3,
+    "minCost": {
+      "a": 2,
+      "b": 1
+    },
+    "maxCost": {
+      "a": 2,
+      "b": 1
+    },
+    "treasureOnly": false,
+    "curse": false,
+    "exclude": [],
+    "category": "fishing",
+    "weight": 2,
+    "tradeable": true,
+    "discoverable": true
+  },
+  {
+    "id": 23,
+    "name": "mending",
+    "displayName": "Mending",
+    "maxLevel": 1,
+    "minCost": {
+      "a": 0,
+      "b": 1
+    },
+    "maxCost": {
+      "a": 0,
+      "b": 1
+    },
+    "treasureOnly": true,
+    "curse": false,
+    "exclude": [
+      "infinity"
+    ],
+    "category": "durability",
+    "weight": 2,
+    "tradeable": true,
+    "discoverable": true
+  },
+  {
+    "id": 24,
+    "name": "multishot",
+    "displayName": "Multishot",
+    "maxLevel": 1,
+    "minCost": {
+      "a": 0,
+      "b": 1
+    },
+    "maxCost": {
+      "a": 0,
+      "b": 1
+    },
+    "treasureOnly": false,
+    "curse": false,
+    "exclude": [
+      "piercing"
+    ],
+    "category": "crossbow",
+    "weight": 2,
+    "tradeable": true,
+    "discoverable": true
+  },
+  {
+    "id": 25,
+    "name": "piercing",
+    "displayName": "Piercing",
+    "maxLevel": 4,
+    "minCost": {
+      "a": 3,
+      "b": 1
+    },
+    "maxCost": {
+      "a": 3,
+      "b": 1
+    },
+    "treasureOnly": false,
+    "curse": false,
+    "exclude": [
+      "multishot"
+    ],
+    "category": "crossbow",
+    "weight": 10,
+    "tradeable": true,
+    "discoverable": true
+  },
+  {
+    "id": 26,
+    "name": "power",
+    "displayName": "Power",
+    "maxLevel": 5,
+    "minCost": {
+      "a": 4,
+      "b": 1
+    },
+    "maxCost": {
+      "a": 4,
+      "b": 1
+    },
+    "treasureOnly": false,
+    "curse": false,
+    "exclude": [],
+    "category": "bow",
+    "weight": 10,
+    "tradeable": true,
+    "discoverable": true
+  },
+  {
+    "id": 27,
+    "name": "projectile_protection",
+    "displayName": "Projectile Protection",
+    "maxLevel": 4,
+    "minCost": {
+      "a": 3,
+      "b": 1
+    },
+    "maxCost": {
+      "a": 3,
+      "b": 1
+    },
+    "treasureOnly": false,
+    "curse": false,
+    "exclude": [
+      "blast_protection",
+      "fire_protection",
+      "protection"
+    ],
+    "category": "armor",
+    "weight": 5,
+    "tradeable": true,
+    "discoverable": true
+  },
+  {
+    "id": 28,
+    "name": "protection",
+    "displayName": "Protection",
+    "maxLevel": 4,
+    "minCost": {
+      "a": 3,
+      "b": 1
+    },
+    "maxCost": {
+      "a": 3,
+      "b": 1
+    },
+    "treasureOnly": false,
+    "curse": false,
+    "exclude": [
+      "blast_protection",
+      "fire_protection",
+      "projectile_protection"
+    ],
+    "category": "armor",
+    "weight": 10,
+    "tradeable": true,
+    "discoverable": true
+  },
+  {
+    "id": 29,
+    "name": "punch",
+    "displayName": "Punch",
+    "maxLevel": 2,
+    "minCost": {
+      "a": 1,
+      "b": 1
+    },
+    "maxCost": {
+      "a": 1,
+      "b": 1
+    },
+    "treasureOnly": false,
+    "curse": false,
+    "exclude": [],
+    "category": "bow",
+    "weight": 2,
+    "tradeable": true,
+    "discoverable": true
+  },
+  {
+    "id": 30,
+    "name": "quick_charge",
+    "displayName": "Quick Charge",
+    "maxLevel": 3,
+    "minCost": {
+      "a": 2,
+      "b": 1
+    },
+    "maxCost": {
+      "a": 2,
+      "b": 1
+    },
+    "treasureOnly": false,
+    "curse": false,
+    "exclude": [],
+    "category": "crossbow",
+    "weight": 5,
+    "tradeable": true,
+    "discoverable": true
+  },
+  {
+    "id": 31,
+    "name": "respiration",
+    "displayName": "Respiration",
+    "maxLevel": 3,
+    "minCost": {
+      "a": 2,
+      "b": 1
+    },
+    "maxCost": {
+      "a": 2,
+      "b": 1
+    },
+    "treasureOnly": false,
+    "curse": false,
+    "exclude": [],
+    "category": "head_armor",
+    "weight": 2,
+    "tradeable": true,
+    "discoverable": true
+  },
+  {
+    "id": 32,
+    "name": "riptide",
+    "displayName": "Riptide",
+    "maxLevel": 3,
+    "minCost": {
+      "a": 2,
+      "b": 1
+    },
+    "maxCost": {
+      "a": 2,
+      "b": 1
+    },
+    "treasureOnly": false,
+    "curse": false,
+    "exclude": [
+      "channeling",
+      "loyalty"
+    ],
+    "category": "trident",
+    "weight": 2,
+    "tradeable": true,
+    "discoverable": true
+  },
+  {
+    "id": 33,
+    "name": "sharpness",
+    "displayName": "Sharpness",
+    "maxLevel": 5,
+    "minCost": {
+      "a": 4,
+      "b": 1
+    },
+    "maxCost": {
+      "a": 4,
+      "b": 1
+    },
+    "treasureOnly": false,
+    "curse": false,
+    "exclude": [
+      "bane_of_arthropods",
+      "breach",
+      "density",
+      "impaling",
+      "smite"
+    ],
+    "category": "sharp_weapon",
+    "weight": 10,
+    "tradeable": true,
+    "discoverable": true
+  },
+  {
+    "id": 34,
+    "name": "silk_touch",
+    "displayName": "Silk Touch",
+    "maxLevel": 1,
+    "minCost": {
+      "a": 0,
+      "b": 1
+    },
+    "maxCost": {
+      "a": 0,
+      "b": 1
+    },
+    "treasureOnly": false,
+    "curse": false,
+    "exclude": [
+      "fortune"
+    ],
+    "category": "mining_loot",
+    "weight": 1,
+    "tradeable": true,
+    "discoverable": true
+  },
+  {
+    "id": 35,
+    "name": "smite",
+    "displayName": "Smite",
+    "maxLevel": 5,
+    "minCost": {
+      "a": 4,
+      "b": 1
+    },
+    "maxCost": {
+      "a": 4,
+      "b": 1
+    },
+    "treasureOnly": false,
+    "curse": false,
+    "exclude": [
+      "bane_of_arthropods",
+      "breach",
+      "density",
+      "impaling",
+      "sharpness"
+    ],
+    "category": "weapon",
+    "weight": 5,
+    "tradeable": true,
+    "discoverable": true
+  },
+  {
+    "id": 36,
+    "name": "soul_speed",
+    "displayName": "Soul Speed",
+    "maxLevel": 3,
+    "minCost": {
+      "a": 2,
+      "b": 1
+    },
+    "maxCost": {
+      "a": 2,
+      "b": 1
+    },
+    "treasureOnly": true,
+    "curse": false,
+    "exclude": [],
+    "category": "foot_armor",
+    "weight": 1,
+    "tradeable": false,
+    "discoverable": false
+  },
+  {
+    "id": 37,
+    "name": "sweeping_edge",
+    "displayName": "Sweeping Edge",
+    "maxLevel": 3,
+    "minCost": {
+      "a": 2,
+      "b": 1
+    },
+    "maxCost": {
+      "a": 2,
+      "b": 1
+    },
+    "treasureOnly": false,
+    "curse": false,
+    "exclude": [],
+    "category": "sweeping",
+    "weight": 2,
+    "tradeable": true,
+    "discoverable": true
+  },
+  {
+    "id": 38,
+    "name": "swift_sneak",
+    "displayName": "Swift Sneak",
+    "maxLevel": 3,
+    "minCost": {
+      "a": 2,
+      "b": 1
+    },
+    "maxCost": {
+      "a": 2,
+      "b": 1
+    },
+    "treasureOnly": true,
+    "curse": false,
+    "exclude": [],
+    "category": "leg_armor",
+    "weight": 1,
+    "tradeable": false,
+    "discoverable": false
+  },
+  {
+    "id": 39,
+    "name": "thorns",
+    "displayName": "Thorns",
+    "maxLevel": 3,
+    "minCost": {
+      "a": 2,
+      "b": 1
+    },
+    "maxCost": {
+      "a": 2,
+      "b": 1
+    },
+    "treasureOnly": false,
+    "curse": false,
+    "exclude": [],
+    "category": "armor",
+    "weight": 1,
+    "tradeable": true,
+    "discoverable": true
+  },
+  {
+    "id": 40,
+    "name": "unbreaking",
+    "displayName": "Unbreaking",
+    "maxLevel": 3,
+    "minCost": {
+      "a": 2,
+      "b": 1
+    },
+    "maxCost": {
+      "a": 2,
+      "b": 1
+    },
+    "treasureOnly": false,
+    "curse": false,
+    "exclude": [],
+    "category": "durability",
+    "weight": 5,
+    "tradeable": true,
+    "discoverable": true
+  },
+  {
+    "id": 41,
+    "name": "vanishing_curse",
+    "displayName": "Curse of Vanishing",
+    "maxLevel": 1,
+    "minCost": {
+      "a": 0,
+      "b": 1
+    },
+    "maxCost": {
+      "a": 0,
+      "b": 1
+    },
+    "treasureOnly": true,
+    "curse": true,
+    "exclude": [],
+    "category": "vanishing",
+    "weight": 1,
+    "tradeable": true,
+    "discoverable": true
+  },
+  {
+    "id": 42,
+    "name": "wind_burst",
+    "displayName": "Wind Burst",
+    "maxLevel": 3,
+    "minCost": {
+      "a": 2,
+      "b": 1
+    },
+    "maxCost": {
+      "a": 2,
+      "b": 1
+    },
+    "treasureOnly": true,
+    "curse": false,
+    "exclude": [],
+    "category": "mace",
+    "weight": 2,
+    "tradeable": false,
+    "discoverable": false
+  }
+]

mc/data/minecraft-data/pc/26.2/foods.json

@@ -0,0 +1,442 @@
+[
+  {
+    "id": 894,
+    "name": "apple",
+    "stackSize": 64,
+    "displayName": "Apple",
+    "foodPoints": 4.0,
+    "saturation": 2.4,
+    "effectiveQuality": 6.4,
+    "saturationRatio": 0.6
+  },
+  {
+    "id": 948,
+    "name": "mushroom_stew",
+    "stackSize": 1,
+    "displayName": "Mushroom Stew",
+    "foodPoints": 6.0,
+    "saturation": 7.2000003,
+    "effectiveQuality": 13.200001,
+    "saturationRatio": 1.2
+  },
+  {
+    "id": 954,
+    "name": "bread",
+    "stackSize": 64,
+    "displayName": "Bread",
+    "foodPoints": 5.0,
+    "saturation": 6.0,
+    "effectiveQuality": 11.0,
+    "saturationRatio": 1.2
+  },
+  {
+    "id": 984,
+    "name": "porkchop",
+    "stackSize": 64,
+    "displayName": "Raw Porkchop",
+    "foodPoints": 3.0,
+    "saturation": 1.8000001,
+    "effectiveQuality": 4.8,
+    "saturationRatio": 0.6
+  },
+  {
+    "id": 985,
+    "name": "cooked_porkchop",
+    "stackSize": 64,
+    "displayName": "Cooked Porkchop",
+    "foodPoints": 8.0,
+    "saturation": 12.8,
+    "effectiveQuality": 20.8,
+    "saturationRatio": 1.6
+  },
+  {
+    "id": 987,
+    "name": "golden_apple",
+    "stackSize": 64,
+    "displayName": "Golden Apple",
+    "foodPoints": 4.0,
+    "saturation": 9.6,
+    "effectiveQuality": 13.6,
+    "saturationRatio": 2.4
+  },
+  {
+    "id": 988,
+    "name": "enchanted_golden_apple",
+    "stackSize": 64,
+    "displayName": "Enchanted Golden Apple",
+    "foodPoints": 4.0,
+    "saturation": 9.6,
+    "effectiveQuality": 13.6,
+    "saturationRatio": 2.4
+  },
+  {
+    "id": 1020,
+    "name": "pufferfish_bucket",
+    "stackSize": 1,
+    "displayName": "Bucket of Pufferfish",
+    "foodPoints": 1.0,
+    "saturation": 0.2,
+    "effectiveQuality": 1.2,
+    "saturationRatio": 0.2
+  },
+  {
+    "id": 1021,
+    "name": "salmon_bucket",
+    "stackSize": 1,
+    "displayName": "Bucket of Salmon",
+    "foodPoints": 2.0,
+    "saturation": 0.4,
+    "effectiveQuality": 2.4,
+    "saturationRatio": 0.2
+  },
+  {
+    "id": 1022,
+    "name": "cod_bucket",
+    "stackSize": 1,
+    "displayName": "Bucket of Cod",
+    "foodPoints": 2.0,
+    "saturation": 0.4,
+    "effectiveQuality": 2.4,
+    "saturationRatio": 0.2
+  },
+  {
+    "id": 1023,
+    "name": "tropical_fish_bucket",
+    "stackSize": 1,
+    "displayName": "Bucket of Tropical Fish",
+    "foodPoints": 1.0,
+    "saturation": 0.2,
+    "effectiveQuality": 1.2,
+    "saturationRatio": 0.2
+  },
+  {
+    "id": 1058,
+    "name": "cod",
+    "stackSize": 64,
+    "displayName": "Raw Cod",
+    "foodPoints": 2.0,
+    "saturation": 0.4,
+    "effectiveQuality": 2.4,
+    "saturationRatio": 0.2
+  },
+  {
+    "id": 1059,
+    "name": "salmon",
+    "stackSize": 64,
+    "displayName": "Raw Salmon",
+    "foodPoints": 2.0,
+    "saturation": 0.4,
+    "effectiveQuality": 2.4,
+    "saturationRatio": 0.2
+  },
+  {
+    "id": 1060,
+    "name": "tropical_fish",
+    "stackSize": 64,
+    "displayName": "Tropical Fish",
+    "foodPoints": 1.0,
+    "saturation": 0.2,
+    "effectiveQuality": 1.2,
+    "saturationRatio": 0.2
+  },
+  {
+    "id": 1061,
+    "name": "pufferfish",
+    "stackSize": 64,
+    "displayName": "Pufferfish",
+    "foodPoints": 1.0,
+    "saturation": 0.2,
+    "effectiveQuality": 1.2,
+    "saturationRatio": 0.2
+  },
+  {
+    "id": 1062,
+    "name": "cooked_cod",
+    "stackSize": 64,
+    "displayName": "Cooked Cod",
+    "foodPoints": 5.0,
+    "saturation": 6.0,
+    "effectiveQuality": 11.0,
+    "saturationRatio": 1.2
+  },
+  {
+    "id": 1063,
+    "name": "cooked_salmon",
+    "stackSize": 64,
+    "displayName": "Cooked Salmon",
+    "foodPoints": 6.0,
+    "saturation": 9.6,
+    "effectiveQuality": 15.6,
+    "saturationRatio": 1.6
+  },
+  {
+    "id": 1103,
+    "name": "cookie",
+    "stackSize": 64,
+    "displayName": "Cookie",
+    "foodPoints": 2.0,
+    "saturation": 0.4,
+    "effectiveQuality": 2.4,
+    "saturationRatio": 0.2
+  },
+  {
+    "id": 1107,
+    "name": "melon_slice",
+    "stackSize": 64,
+    "displayName": "Melon Slice",
+    "foodPoints": 2.0,
+    "saturation": 1.2,
+    "effectiveQuality": 3.2,
+    "saturationRatio": 0.6
+  },
+  {
+    "id": 1108,
+    "name": "dried_kelp",
+    "stackSize": 64,
+    "displayName": "Dried Kelp",
+    "foodPoints": 1.0,
+    "saturation": 0.6,
+    "effectiveQuality": 1.6,
+    "saturationRatio": 0.6
+  },
+  {
+    "id": 1111,
+    "name": "beef",
+    "stackSize": 64,
+    "displayName": "Raw Beef",
+    "foodPoints": 3.0,
+    "saturation": 1.8000001,
+    "effectiveQuality": 4.8,
+    "saturationRatio": 0.6
+  },
+  {
+    "id": 1112,
+    "name": "cooked_beef",
+    "stackSize": 64,
+    "displayName": "Steak",
+    "foodPoints": 8.0,
+    "saturation": 12.8,
+    "effectiveQuality": 20.8,
+    "saturationRatio": 1.6
+  },
+  {
+    "id": 1113,
+    "name": "chicken",
+    "stackSize": 64,
+    "displayName": "Raw Chicken",
+    "foodPoints": 2.0,
+    "saturation": 1.2,
+    "effectiveQuality": 3.2,
+    "saturationRatio": 0.6
+  },
+  {
+    "id": 1114,
+    "name": "cooked_chicken",
+    "stackSize": 64,
+    "displayName": "Cooked Chicken",
+    "foodPoints": 6.0,
+    "saturation": 7.2000003,
+    "effectiveQuality": 13.200001,
+    "saturationRatio": 1.2
+  },
+  {
+    "id": 1115,
+    "name": "rotten_flesh",
+    "stackSize": 64,
+    "displayName": "Rotten Flesh",
+    "foodPoints": 4.0,
+    "saturation": 0.8,
+    "effectiveQuality": 4.8,
+    "saturationRatio": 0.2
+  },
+  {
+    "id": 1123,
+    "name": "spider_eye",
+    "stackSize": 64,
+    "displayName": "Spider Eye",
+    "foodPoints": 2.0,
+    "saturation": 3.2,
+    "effectiveQuality": 5.2,
+    "saturationRatio": 1.6
+  },
+  {
+    "id": 1228,
+    "name": "carrot",
+    "stackSize": 64,
+    "displayName": "Carrot",
+    "foodPoints": 3.0,
+    "saturation": 3.6000001,
+    "effectiveQuality": 6.6000004,
+    "saturationRatio": 1.2
+  },
+  {
+    "id": 1229,
+    "name": "potato",
+    "stackSize": 64,
+    "displayName": "Potato",
+    "foodPoints": 1.0,
+    "saturation": 0.6,
+    "effectiveQuality": 1.6,
+    "saturationRatio": 0.6
+  },
+  {
+    "id": 1230,
+    "name": "baked_potato",
+    "stackSize": 64,
+    "displayName": "Baked Potato",
+    "foodPoints": 5.0,
+    "saturation": 6.0,
+    "effectiveQuality": 11.0,
+    "saturationRatio": 1.2
+  },
+  {
+    "id": 1231,
+    "name": "poisonous_potato",
+    "stackSize": 64,
+    "displayName": "Poisonous Potato",
+    "foodPoints": 2.0,
+    "saturation": 1.2,
+    "effectiveQuality": 3.2,
+    "saturationRatio": 0.6
+  },
+  {
+    "id": 1233,
+    "name": "golden_carrot",
+    "stackSize": 64,
+    "displayName": "Golden Carrot",
+    "foodPoints": 6.0,
+    "saturation": 14.400001,
+    "effectiveQuality": 20.400002,
+    "saturationRatio": 2.4
+  },
+  {
+    "id": 1242,
+    "name": "pumpkin_pie",
+    "stackSize": 64,
+    "displayName": "Pumpkin Pie",
+    "foodPoints": 8.0,
+    "saturation": 4.8,
+    "effectiveQuality": 12.8,
+    "saturationRatio": 0.6
+  },
+  {
+    "id": 1250,
+    "name": "rabbit",
+    "stackSize": 64,
+    "displayName": "Raw Rabbit",
+    "foodPoints": 3.0,
+    "saturation": 1.8000001,
+    "effectiveQuality": 4.8,
+    "saturationRatio": 0.6
+  },
+  {
+    "id": 1251,
+    "name": "cooked_rabbit",
+    "stackSize": 64,
+    "displayName": "Cooked Rabbit",
+    "foodPoints": 5.0,
+    "saturation": 6.0,
+    "effectiveQuality": 11.0,
+    "saturationRatio": 1.2
+  },
+  {
+    "id": 1252,
+    "name": "rabbit_stew",
+    "stackSize": 1,
+    "displayName": "Rabbit Stew",
+    "foodPoints": 10.0,
+    "saturation": 12.0,
+    "effectiveQuality": 22.0,
+    "saturationRatio": 1.2
+  },
+  {
+    "id": 1265,
+    "name": "mutton",
+    "stackSize": 64,
+    "displayName": "Raw Mutton",
+    "foodPoints": 2.0,
+    "saturation": 1.2,
+    "effectiveQuality": 3.2,
+    "saturationRatio": 0.6
+  },
+  {
+    "id": 1266,
+    "name": "cooked_mutton",
+    "stackSize": 64,
+    "displayName": "Cooked Mutton",
+    "foodPoints": 6.0,
+    "saturation": 9.6,
+    "effectiveQuality": 15.6,
+    "saturationRatio": 1.6
+  },
+  {
+    "id": 1284,
+    "name": "chorus_fruit",
+    "stackSize": 64,
+    "displayName": "Chorus Fruit",
+    "foodPoints": 4.0,
+    "saturation": 2.4,
+    "effectiveQuality": 6.4,
+    "saturationRatio": 0.6
+  },
+  {
+    "id": 1288,
+    "name": "beetroot",
+    "stackSize": 64,
+    "displayName": "Beetroot",
+    "foodPoints": 1.0,
+    "saturation": 1.2,
+    "effectiveQuality": 2.2,
+    "saturationRatio": 1.2
+  },
+  {
+    "id": 1290,
+    "name": "beetroot_soup",
+    "stackSize": 1,
+    "displayName": "Beetroot Soup",
+    "foodPoints": 6.0,
+    "saturation": 7.2000003,
+    "effectiveQuality": 13.200001,
+    "saturationRatio": 1.2
+  },
+  {
+    "id": 1341,
+    "name": "suspicious_stew",
+    "stackSize": 1,
+    "displayName": "Suspicious Stew",
+    "foodPoints": 6.0,
+    "saturation": 7.2000003,
+    "effectiveQuality": 13.200001,
+    "saturationRatio": 1.2
+  },
+  {
+    "id": 1374,
+    "name": "sweet_berries",
+    "stackSize": 64,
+    "displayName": "Sweet Berries",
+    "foodPoints": 2.0,
+    "saturation": 0.4,
+    "effectiveQuality": 2.4,
+    "saturationRatio": 0.2
+  },
+  {
+    "id": 1375,
+    "name": "glow_berries",
+    "stackSize": 64,
+    "displayName": "Glow Berries",
+    "foodPoints": 2.0,
+    "saturation": 0.4,
+    "effectiveQuality": 2.4,
+    "saturationRatio": 0.2
+  },
+  {
+    "id": 1382,
+    "name": "honey_bottle",
+    "stackSize": 16,
+    "displayName": "Honey Bottle",
+    "foodPoints": 6.0,
+    "saturation": 1.2,
+    "effectiveQuality": 7.2,
+    "saturationRatio": 0.2
+  }
+]

mc/data/minecraft-data/pc/26.2/instruments.json

@@ -0,0 +1,110 @@
+[
+  {
+    "id": 0,
+    "name": "harp"
+  },
+  {
+    "id": 1,
+    "name": "basedrum"
+  },
+  {
+    "id": 2,
+    "name": "snare"
+  },
+  {
+    "id": 3,
+    "name": "hat"
+  },
+  {
+    "id": 4,
+    "name": "bass"
+  },
+  {
+    "id": 5,
+    "name": "flute"
+  },
+  {
+    "id": 6,
+    "name": "bell"
+  },
+  {
+    "id": 7,
+    "name": "guitar"
+  },
+  {
+    "id": 8,
+    "name": "chime"
+  },
+  {
+    "id": 9,
+    "name": "xylophone"
+  },
+  {
+    "id": 10,
+    "name": "iron_xylophone"
+  },
+  {
+    "id": 11,
+    "name": "cow_bell"
+  },
+  {
+    "id": 12,
+    "name": "didgeridoo"
+  },
+  {
+    "id": 13,
+    "name": "bit"
+  },
+  {
+    "id": 14,
+    "name": "banjo"
+  },
+  {
+    "id": 15,
+    "name": "pling"
+  },
+  {
+    "id": 16,
+    "name": "trumpet"
+  },
+  {
+    "id": 17,
+    "name": "trumpet_exposed"
+  },
+  {
+    "id": 18,
+    "name": "trumpet_oxidized"
+  },
+  {
+    "id": 19,
+    "name": "trumpet_weathered"
+  },
+  {
+    "id": 20,
+    "name": "zombie"
+  },
+  {
+    "id": 21,
+    "name": "skeleton"
+  },
+  {
+    "id": 22,
+    "name": "creeper"
+  },
+  {
+    "id": 23,
+    "name": "dragon"
+  },
+  {
+    "id": 24,
+    "name": "wither_skeleton"
+  },
+  {
+    "id": 25,
+    "name": "piglin"
+  },
+  {
+    "id": 26,
+    "name": "custom_head"
+  }
+]

mc/data/minecraft-data/pc/26.2/materials.json

@@ -0,0 +1,233 @@
+{
+  "default": {},
+  "leaves": {
+    "1106": 1.0,
+    "912": 1.5,
+    "917": 1.5,
+    "922": 1.5,
+    "927": 1.5,
+    "932": 1.5,
+    "937": 1.5,
+    "942": 1.5
+  },
+  "coweb": {
+    "1106": 15.0,
+    "912": 15.0,
+    "917": 15.0,
+    "922": 15.0,
+    "927": 15.0,
+    "932": 15.0,
+    "937": 15.0,
+    "942": 15.0
+  },
+  "plant": {
+    "912": 1.5,
+    "917": 1.5,
+    "922": 1.5,
+    "927": 1.5,
+    "932": 1.5,
+    "937": 1.5,
+    "942": 1.5
+  },
+  "gourd": {
+    "912": 1.5,
+    "917": 1.5,
+    "922": 1.5,
+    "927": 1.5,
+    "932": 1.5,
+    "937": 1.5,
+    "942": 1.5
+  },
+  "vine_or_glow_lichen": {
+    "1106": 2.0
+  },
+  "wool": {
+    "1106": 1.0
+  },
+  "sword_instantly_mines": {
+    "912": 2.0,
+    "917": 1.0,
+    "922": 4.0,
+    "927": 12.0,
+    "932": 6.0,
+    "937": 8.0,
+    "942": 9.0
+  },
+  "sword_efficient": {
+    "912": 2.0,
+    "917": 1.0,
+    "922": 4.0,
+    "927": 12.0,
+    "932": 6.0,
+    "937": 8.0,
+    "942": 9.0
+  },
+  "incorrect_for_wooden_tool": {
+    "913": 2.0,
+    "914": 2.0,
+    "915": 2.0,
+    "916": 2.0
+  },
+  "mineable/shovel": {
+    "913": 2.0,
+    "918": 1.0,
+    "923": 4.0,
+    "928": 12.0,
+    "933": 6.0,
+    "938": 8.0,
+    "943": 9.0
+  },
+  "mineable/pickaxe": {
+    "914": 2.0,
+    "919": 1.0,
+    "924": 4.0,
+    "929": 12.0,
+    "934": 6.0,
+    "939": 8.0,
+    "944": 9.0
+  },
+  "mineable/axe": {
+    "915": 2.0,
+    "920": 1.0,
+    "925": 4.0,
+    "930": 12.0,
+    "935": 6.0,
+    "940": 8.0,
+    "945": 9.0
+  },
+  "mineable/hoe": {
+    "916": 2.0,
+    "921": 1.0,
+    "926": 4.0,
+    "931": 12.0,
+    "936": 6.0,
+    "941": 8.0,
+    "946": 9.0
+  },
+  "incorrect_for_copper_tool": {
+    "918": 1.0,
+    "919": 1.0,
+    "920": 1.0,
+    "921": 1.0
+  },
+  "incorrect_for_stone_tool": {
+    "923": 4.0,
+    "924": 4.0,
+    "925": 4.0,
+    "926": 4.0
+  },
+  "incorrect_for_gold_tool": {
+    "928": 12.0,
+    "929": 12.0,
+    "930": 12.0,
+    "931": 12.0
+  },
+  "incorrect_for_iron_tool": {
+    "933": 6.0,
+    "934": 6.0,
+    "935": 6.0,
+    "936": 6.0
+  },
+  "incorrect_for_diamond_tool": {
+    "938": 8.0,
+    "939": 8.0,
+    "940": 8.0,
+    "941": 8.0
+  },
+  "incorrect_for_netherite_tool": {
+    "943": 9.0,
+    "944": 9.0,
+    "945": 9.0,
+    "946": 9.0
+  },
+  "plant;mineable/axe": {
+    "912": 1.5,
+    "917": 1.5,
+    "922": 1.5,
+    "927": 1.5,
+    "932": 1.5,
+    "937": 1.5,
+    "942": 1.5,
+    "915": 2.0,
+    "920": 1.0,
+    "925": 4.0,
+    "930": 12.0,
+    "935": 6.0,
+    "940": 8.0,
+    "945": 9.0
+  },
+  "gourd;mineable/axe": {
+    "912": 1.5,
+    "917": 1.5,
+    "922": 1.5,
+    "927": 1.5,
+    "932": 1.5,
+    "937": 1.5,
+    "942": 1.5,
+    "915": 2.0,
+    "920": 1.0,
+    "925": 4.0,
+    "930": 12.0,
+    "935": 6.0,
+    "940": 8.0,
+    "945": 9.0
+  },
+  "leaves;mineable/hoe": {
+    "1106": 1.0,
+    "912": 1.5,
+    "917": 1.5,
+    "922": 1.5,
+    "927": 1.5,
+    "932": 1.5,
+    "937": 1.5,
+    "942": 1.5,
+    "916": 2.0,
+    "921": 1.0,
+    "926": 4.0,
+    "931": 12.0,
+    "936": 6.0,
+    "941": 8.0,
+    "946": 9.0
+  },
+  "leaves;mineable/axe;mineable/hoe": {
+    "1106": 1.0,
+    "912": 1.5,
+    "917": 1.5,
+    "922": 1.5,
+    "927": 1.5,
+    "932": 1.5,
+    "937": 1.5,
+    "942": 1.5,
+    "915": 2.0,
+    "920": 1.0,
+    "925": 4.0,
+    "930": 12.0,
+    "935": 6.0,
+    "940": 8.0,
+    "945": 9.0,
+    "916": 2.0,
+    "921": 1.0,
+    "926": 4.0,
+    "931": 12.0,
+    "936": 6.0,
+    "941": 8.0,
+    "946": 9.0
+  },
+  "vine_or_glow_lichen;plant;mineable/axe": {
+    "1106": 2.0,
+    "912": 1.5,
+    "917": 1.5,
+    "922": 1.5,
+    "927": 1.5,
+    "932": 1.5,
+    "937": 1.5,
+    "942": 1.5,
+    "915": 2.0,
+    "920": 1.0,
+    "925": 4.0,
+    "930": 12.0,
+    "935": 6.0,
+    "940": 8.0,
+    "945": 9.0
+  }
+}

mc/data/minecraft-data/pc/26.2/particles.json

@@ -0,0 +1,470 @@
+[
+  {
+    "id": 0,
+    "name": "angry_villager"
+  },
+  {
+    "id": 1,
+    "name": "block"
+  },
+  {
+    "id": 2,
+    "name": "block_marker"
+  },
+  {
+    "id": 3,
+    "name": "bubble"
+  },
+  {
+    "id": 4,
+    "name": "cloud"
+  },
+  {
+    "id": 5,
+    "name": "copper_fire_flame"
+  },
+  {
+    "id": 6,
+    "name": "crit"
+  },
+  {
+    "id": 7,
+    "name": "damage_indicator"
+  },
+  {
+    "id": 8,
+    "name": "dragon_breath"
+  },
+  {
+    "id": 9,
+    "name": "dripping_lava"
+  },
+  {
+    "id": 10,
+    "name": "falling_lava"
+  },
+  {
+    "id": 11,
+    "name": "landing_lava"
+  },
+  {
+    "id": 12,
+    "name": "dripping_water"
+  },
+  {
+    "id": 13,
+    "name": "falling_water"
+  },
+  {
+    "id": 14,
+    "name": "dust"
+  },
+  {
+    "id": 15,
+    "name": "dust_color_transition"
+  },
+  {
+    "id": 16,
+    "name": "effect"
+  },
+  {
+    "id": 17,
+    "name": "elder_guardian"
+  },
+  {
+    "id": 18,
+    "name": "enchanted_hit"
+  },
+  {
+    "id": 19,
+    "name": "enchant"
+  },
+  {
+    "id": 20,
+    "name": "end_rod"
+  },
+  {
+    "id": 21,
+    "name": "entity_effect"
+  },
+  {
+    "id": 22,
+    "name": "explosion_emitter"
+  },
+  {
+    "id": 23,
+    "name": "explosion"
+  },
+  {
+    "id": 24,
+    "name": "gust"
+  },
+  {
+    "id": 25,
+    "name": "small_gust"
+  },
+  {
+    "id": 26,
+    "name": "gust_emitter_large"
+  },
+  {
+    "id": 27,
+    "name": "gust_emitter_small"
+  },
+  {
+    "id": 28,
+    "name": "sonic_boom"
+  },
+  {
+    "id": 29,
+    "name": "falling_dust"
+  },
+  {
+    "id": 30,
+    "name": "firework"
+  },
+  {
+    "id": 31,
+    "name": "fishing"
+  },
+  {
+    "id": 32,
+    "name": "flame"
+  },
+  {
+    "id": 33,
+    "name": "infested"
+  },
+  {
+    "id": 34,
+    "name": "cherry_leaves"
+  },
+  {
+    "id": 35,
+    "name": "pale_oak_leaves"
+  },
+  {
+    "id": 36,
+    "name": "tinted_leaves"
+  },
+  {
+    "id": 37,
+    "name": "sculk_soul"
+  },
+  {
+    "id": 38,
+    "name": "sculk_charge"
+  },
+  {
+    "id": 39,
+    "name": "sculk_charge_pop"
+  },
+  {
+    "id": 40,
+    "name": "soul_fire_flame"
+  },
+  {
+    "id": 41,
+    "name": "soul"
+  },
+  {
+    "id": 42,
+    "name": "flash"
+  },
+  {
+    "id": 43,
+    "name": "happy_villager"
+  },
+  {
+    "id": 44,
+    "name": "composter"
+  },
+  {
+    "id": 45,
+    "name": "heart"
+  },
+  {
+    "id": 46,
+    "name": "instant_effect"
+  },
+  {
+    "id": 47,
+    "name": "item"
+  },
+  {
+    "id": 48,
+    "name": "vibration"
+  },
+  {
+    "id": 49,
+    "name": "trail"
+  },
+  {
+    "id": 50,
+    "name": "pause_mob_growth"
+  },
+  {
+    "id": 51,
+    "name": "reset_mob_growth"
+  },
+  {
+    "id": 52,
+    "name": "item_slime"
+  },
+  {
+    "id": 53,
+    "name": "item_cobweb"
+  },
+  {
+    "id": 54,
+    "name": "item_snowball"
+  },
+  {
+    "id": 55,
+    "name": "large_smoke"
+  },
+  {
+    "id": 56,
+    "name": "lava"
+  },
+  {
+    "id": 57,
+    "name": "mycelium"
+  },
+  {
+    "id": 58,
+    "name": "note"
+  },
+  {
+    "id": 59,
+    "name": "poof"
+  },
+  {
+    "id": 60,
+    "name": "portal"
+  },
+  {
+    "id": 61,
+    "name": "rain"
+  },
+  {
+    "id": 62,
+    "name": "smoke"
+  },
+  {
+    "id": 63,
+    "name": "white_smoke"
+  },
+  {
+    "id": 64,
+    "name": "sneeze"
+  },
+  {
+    "id": 65,
+    "name": "spit"
+  },
+  {
+    "id": 66,
+    "name": "squid_ink"
+  },
+  {
+    "id": 67,
+    "name": "sweep_attack"
+  },
+  {
+    "id": 68,
+    "name": "totem_of_undying"
+  },
+  {
+    "id": 69,
+    "name": "underwater"
+  },
+  {
+    "id": 70,
+    "name": "splash"
+  },
+  {
+    "id": 71,
+    "name": "witch"
+  },
+  {
+    "id": 72,
+    "name": "bubble_pop"
+  },
+  {
+    "id": 73,
+    "name": "current_down"
+  },
+  {
+    "id": 74,
+    "name": "bubble_column_up"
+  },
+  {
+    "id": 75,
+    "name": "nautilus"
+  },
+  {
+    "id": 76,
+    "name": "dolphin"
+  },
+  {
+    "id": 77,
+    "name": "campfire_cosy_smoke"
+  },
+  {
+    "id": 78,
+    "name": "campfire_signal_smoke"
+  },
+  {
+    "id": 79,
+    "name": "dripping_honey"
+  },
+  {
+    "id": 80,
+    "name": "falling_honey"
+  },
+  {
+    "id": 81,
+    "name": "landing_honey"
+  },
+  {
+    "id": 82,
+    "name": "falling_nectar"
+  },
+  {
+    "id": 83,
+    "name": "falling_spore_blossom"
+  },
+  {
+    "id": 84,
+    "name": "ash"
+  },
+  {
+    "id": 85,
+    "name": "crimson_spore"
+  },
+  {
+    "id": 86,
+    "name": "warped_spore"
+  },
+  {
+    "id": 87,
+    "name": "spore_blossom_air"
+  },
+  {
+    "id": 88,
+    "name": "dripping_obsidian_tear"
+  },
+  {
+    "id": 89,
+    "name": "falling_obsidian_tear"
+  },
+  {
+    "id": 90,
+    "name": "landing_obsidian_tear"
+  },
+  {
+    "id": 91,
+    "name": "reverse_portal"
+  },
+  {
+    "id": 92,
+    "name": "white_ash"
+  },
+  {
+    "id": 93,
+    "name": "small_flame"
+  },
+  {
+    "id": 94,
+    "name": "snowflake"
+  },
+  {
+    "id": 95,
+    "name": "dripping_dripstone_lava"
+  },
+  {
+    "id": 96,
+    "name": "falling_dripstone_lava"
+  },
+  {
+    "id": 97,
+    "name": "dripping_dripstone_water"
+  },
+  {
+    "id": 98,
+    "name": "falling_dripstone_water"
+  },
+  {
+    "id": 99,
+    "name": "glow_squid_ink"
+  },
+  {
+    "id": 100,
+    "name": "glow"
+  },
+  {
+    "id": 101,
+    "name": "wax_on"
+  },
+  {
+    "id": 102,
+    "name": "wax_off"
+  },
+  {
+    "id": 103,
+    "name": "electric_spark"
+  },
+  {
+    "id": 104,
+    "name": "scrape"
+  },
+  {
+    "id": 105,
+    "name": "shriek"
+  },
+  {
+    "id": 106,
+    "name": "egg_crack"
+  },
+  {
+    "id": 107,
+    "name": "dust_plume"
+  },
+  {
+    "id": 108,
+    "name": "trial_spawner_detection"
+  },
+  {
+    "id": 109,
+    "name": "trial_spawner_detection_ominous"
+  },
+  {
+    "id": 110,
+    "name": "vault_connection"
+  },
+  {
+    "id": 111,
+    "name": "dust_pillar"
+  },
+  {
+    "id": 112,
+    "name": "ominous_spawning"
+  },
+  {
+    "id": 113,
+    "name": "raid_omen"
+  },
+  {
+    "id": 114,
+    "name": "trial_omen"
+  },
+  {
+    "id": 115,
+    "name": "block_crumble"
+  },
+  {
+    "id": 116,
+    "name": "firefly"
+  }
+]

mc/data/minecraft-data/pc/26.2/tints.json

@@ -0,0 +1,465 @@
+{
+  "grass": {
+    "data": [
+      {
+        "keys": [
+          "badlands",
+          "eroded_badlands",
+          "wooded_badlands"
+        ],
+        "color": -7306931
+      },
+      {
+        "keys": [
+          "bamboo_jungle",
+          "basalt_deltas",
+          "beach",
+          "birch_forest",
+          "cold_ocean",
+          "crimson_forest",
+          "deep_cold_ocean",
+          "deep_dark",
+          "deep_frozen_ocean",
+          "deep_lukewarm_ocean",
+          "deep_ocean",
+          "desert",
+          "dripstone_caves",
+          "end_barrens",
+          "end_highlands",
+          "end_midlands",
+          "flower_forest",
+          "forest",
+          "frozen_ocean",
+          "frozen_peaks",
+          "frozen_river",
+          "grove",
+          "ice_spikes",
+          "jagged_peaks",
+          "jungle",
+          "lukewarm_ocean",
+          "lush_caves",
+          "meadow",
+          "mushroom_fields",
+          "nether_wastes",
+          "ocean",
+          "old_growth_birch_forest",
+          "old_growth_pine_taiga",
+          "old_growth_spruce_taiga",
+          "plains",
+          "river",
+          "savanna",
+          "savanna_plateau",
+          "small_end_islands",
+          "snowy_beach",
+          "snowy_plains",
+          "snowy_slopes",
+          "snowy_taiga",
+          "soul_sand_valley",
+          "sparse_jungle",
+          "stony_peaks",
+          "stony_shore",
+          "sunflower_plains",
+          "taiga",
+          "the_end",
+          "the_void",
+          "warm_ocean",
+          "warped_forest",
+          "windswept_forest",
+          "windswept_gravelly_hills",
+          "windswept_hills",
+          "windswept_savanna"
+        ],
+        "color": 0
+      },
+      {
+        "keys": [
+          "cherry_grove"
+        ],
+        "color": -4793503
+      },
+      {
+        "keys": [
+          "dark_forest"
+        ],
+        "color": -15459835
+      },
+      {
+        "keys": [
+          "mangrove_swamp",
+          "swamp"
+        ],
+        "color": -9801671
+      },
+      {
+        "keys": [
+          "pale_garden"
+        ],
+        "color": -8945038
+      }
+    ]
+  },
+  "foliage": {
+    "data": [
+      {
+        "keys": [
+          "badlands",
+          "eroded_badlands",
+          "wooded_badlands"
+        ],
+        "color": -6389427
+      },
+      {
+        "keys": [
+          "bamboo_jungle",
+          "basalt_deltas",
+          "beach",
+          "birch_forest",
+          "cold_ocean",
+          "crimson_forest",
+          "dark_forest",
+          "deep_cold_ocean",
+          "deep_dark",
+          "deep_frozen_ocean",
+          "deep_lukewarm_ocean",
+          "deep_ocean",
+          "desert",
+          "dripstone_caves",
+          "end_barrens",
+          "end_highlands",
+          "end_midlands",
+          "flower_forest",
+          "forest",
+          "frozen_ocean",
+          "frozen_peaks",
+          "frozen_river",
+          "grove",
+          "ice_spikes",
+          "jagged_peaks",
+          "jungle",
+          "lukewarm_ocean",
+          "lush_caves",
+          "meadow",
+          "mushroom_fields",
+          "nether_wastes",
+          "ocean",
+          "old_growth_birch_forest",
+          "old_growth_pine_taiga",
+          "old_growth_spruce_taiga",
+          "plains",
+          "river",
+          "savanna",
+          "savanna_plateau",
+          "small_end_islands",
+          "snowy_beach",
+          "snowy_plains",
+          "snowy_slopes",
+          "snowy_taiga",
+          "soul_sand_valley",
+          "sparse_jungle",
+          "stony_peaks",
+          "stony_shore",
+          "sunflower_plains",
+          "taiga",
+          "the_end",
+          "the_void",
+          "warm_ocean",
+          "warped_forest",
+          "windswept_forest",
+          "windswept_gravelly_hills",
+          "windswept_hills",
+          "windswept_savanna"
+        ],
+        "color": 0
+      },
+      {
+        "keys": [
+          "cherry_grove"
+        ],
+        "color": -4793503
+      },
+      {
+        "keys": [
+          "mangrove_swamp"
+        ],
+        "color": -7491289
+      },
+      {
+        "keys": [
+          "pale_garden"
+        ],
+        "color": -7893642
+      },
+      {
+        "keys": [
+          "swamp"
+        ],
+        "color": -9801671
+      }
+    ]
+  },
+  "water": {
+    "data": [
+      {
+        "keys": [
+          "badlands",
+          "bamboo_jungle",
+          "basalt_deltas",
+          "beach",
+          "birch_forest",
+          "crimson_forest",
+          "dark_forest",
+          "deep_dark",
+          "deep_ocean",
+          "desert",
+          "dripstone_caves",
+          "end_barrens",
+          "end_highlands",
+          "end_midlands",
+          "eroded_badlands",
+          "flower_forest",
+          "forest",
+          "frozen_peaks",
+          "grove",
+          "ice_spikes",
+          "jagged_peaks",
+          "jungle",
+          "lush_caves",
+          "mushroom_fields",
+          "nether_wastes",
+          "ocean",
+          "old_growth_birch_forest",
+          "old_growth_pine_taiga",
+          "old_growth_spruce_taiga",
+          "plains",
+          "river",
+          "savanna",
+          "savanna_plateau",
+          "small_end_islands",
+          "snowy_plains",
+          "snowy_slopes",
+          "soul_sand_valley",
+          "sparse_jungle",
+          "stony_peaks",
+          "stony_shore",
+          "sunflower_plains",
+          "taiga",
+          "the_end",
+          "the_void",
+          "warped_forest",
+          "windswept_forest",
+          "windswept_gravelly_hills",
+          "windswept_hills",
+          "windswept_savanna",
+          "wooded_badlands"
+        ],
+        "color": -12618012
+      },
+      {
+        "keys": [
+          "cherry_grove"
+        ],
+        "color": -10635281
+      },
+      {
+        "keys": [
+          "cold_ocean",
+          "deep_cold_ocean",
+          "snowy_beach",
+          "snowy_taiga"
+        ],
+        "color": -12757034
+      },
+      {
+        "keys": [
+          "deep_frozen_ocean",
+          "frozen_ocean",
+          "frozen_river"
+        ],
+        "color": -13027127
+      },
+      {
+        "keys": [
+          "deep_lukewarm_ocean",
+          "lukewarm_ocean"
+        ],
+        "color": -12210702
+      },
+      {
+        "keys": [
+          "mangrove_swamp"
+        ],
+        "color": -12944790
+      },
+      {
+        "keys": [
+          "meadow"
+        ],
+        "color": -15839537
+      },
+      {
+        "keys": [
+          "pale_garden"
+        ],
+        "color": -9008995
+      },
+      {
+        "keys": [
+          "swamp"
+        ],
+        "color": -10388636
+      },
+      {
+        "keys": [
+          "warm_ocean"
+        ],
+        "color": -12331538
+      }
+    ]
+  },
+  "redstone": {
+    "data": [
+      {
+        "keys": [
+          0
+        ],
+        "color": 4980736
+      },
+      {
+        "keys": [
+          1
+        ],
+        "color": 7340032
+      },
+      {
+        "keys": [
+          2
+        ],
+        "color": 7995392
+      },
+      {
+        "keys": [
+          3
+        ],
+        "color": 8650752
+      },
+      {
+        "keys": [
+          4
+        ],
+        "color": 9306112
+      },
+      {
+        "keys": [
+          5
+        ],
+        "color": 10027008
+      },
+      {
+        "keys": [
+          6
+        ],
+        "color": 10682368
+      },
+      {
+        "keys": [
+          7
+        ],
+        "color": 11337728
+      },
+      {
+        "keys": [
+          8
+        ],
+        "color": 11993088
+      },
+      {
+        "keys": [
+          9
+        ],
+        "color": 12648448
+      },
+      {
+        "keys": [
+          10
+        ],
+        "color": 13369344
+      },
+      {
+        "keys": [
+          11
+        ],
+        "color": 14024704
+      },
+      {
+        "keys": [
+          12
+        ],
+        "color": 14680064
+      },
+      {
+        "keys": [
+          13
+        ],
+        "color": 15336960
+      },
+      {
+        "keys": [
+          14
+        ],
+        "color": 15997696
+      },
+      {
+        "keys": [
+          15
+        ],
+        "color": 16724480
+      }
+    ]
+  },
+  "constant": {
+    "data": [
+      {
+        "keys": [
+          "birch_leaves"
+        ],
+        "color": -8345771
+      },
+      {
+        "keys": [
+          "spruce_leaves"
+        ],
+        "color": -10380959
+      },
+      {
+        "keys": [
+          "lily_pad"
+        ],
+        "color": -14647248
+      },
+      {
+        "keys": [
+          "attached_melon_stem"
+        ],
+        "color": -2046180
+      },
+      {
+        "keys": [
+          "attached_pumpkin_stem"
+        ],
+        "color": -2046180
+      },
+      {
+        "keys": [
+          "melon_stem"
+        ],
+        "color": -16711936
+      },
+      {
+        "keys": [
+          "pumpkin_stem"
+        ],
+        "color": -16711936
+      }
+    ]
+  }
+}

mc/data/minecraft-data/pc/26.2/version.json

@@ -0,0 +1,6 @@
+{
+  "version": 776,
+  "minecraftVersion": "26.2",
+  "majorVersion": "26.2",
+  "releaseType": "release"
+}

mc/data/minecraft-data/pc/common/features.json

@@ -906,6 +906,11 @@
     "description": "spawn position includes a dimension component",
     "versions": ["1.21.9", "latest"]
   },
+  {
+    "name": "entityVelocityIsLpVec3",
+    "description": "entity velocity packets use length-prefixed vectors in blocks per tick",
+    "versions": ["1.21.9", "latest"]
+  },
   {
     "name": "gameRuleUsesResourceLocation",
     "description": "gamerule names use resource location syntax",

mc/data/minecraft-data/pc/common/protocolVersions.json

@@ -1,4 +1,140 @@
 [
+  {
+    "minecraftVersion": "26.3-snapshot-5",
+    "version": 1073742151,
+    "dataVersion": 5004,
+    "usesNetty": true,
+    "majorVersion": "26.3-snapshot-5",
+    "releaseType": "snapshot"
+  },
+  {
+    "minecraftVersion": "26.3-snapshot-4",
+    "version": 1073742150,
+    "dataVersion": 5003,
+    "usesNetty": true,
+    "majorVersion": "26.3-snapshot-4",
+    "releaseType": "snapshot"
+  },
+  {
+    "minecraftVersion": "26.3-snapshot-3",
+    "version": 1073742149,
+    "dataVersion": 5001,
+    "usesNetty": true,
+    "majorVersion": "26.3-snapshot-3",
+    "releaseType": "snapshot"
+  },
+  {
+    "minecraftVersion": "26.3-snapshot-2",
+    "version": 1073742148,
+    "dataVersion": 4999,
+    "usesNetty": true,
+    "majorVersion": "26.3-snapshot-2",
+    "releaseType": "snapshot"
+  },
+  {
+    "minecraftVersion": "26.3-snapshot-1",
+    "version": 1073742147,
+    "dataVersion": 4998,
+    "usesNetty": true,
+    "majorVersion": "26.3-snapshot-1",
+    "releaseType": "snapshot"
+  },
+  {
+    "minecraftVersion": "26.2",
+    "version": 776,
+    "dataVersion": 4903,
+    "usesNetty": true,
+    "majorVersion": "26.2",
+    "releaseType": "release"
+  },
+  {
+    "minecraftVersion": "26.2-rc-2",
+    "version": 1073742146,
+    "dataVersion": 4902,
+    "usesNetty": true,
+    "majorVersion": "26.2-rc-2",
+    "releaseType": "snapshot"
+  },
+  {
+    "minecraftVersion": "26.2-rc-1",
+    "version": 1073742145,
+    "dataVersion": 4901,
+    "usesNetty": true,
+    "majorVersion": "26.2-rc-1",
+    "releaseType": "snapshot"
+  },
+  {
+    "minecraftVersion": "26.2-pre-6",
+    "version": 1073742144,
+    "dataVersion": 4900,
+    "usesNetty": true,
+    "majorVersion": "26.2-pre-6",
+    "releaseType": "snapshot"
+  },
+  {
+    "minecraftVersion": "26.2-pre-5",
+    "version": 1073742143,
+    "dataVersion": 4898,
+    "usesNetty": true,
+    "majorVersion": "26.2-pre-5",
+    "releaseType": "snapshot"
+  },
+  {
+    "minecraftVersion": "26.2-pre-4",
+    "version": 1073742142,
+    "dataVersion": 4897,
+    "usesNetty": true,
+    "majorVersion": "26.2-pre-4",
+    "releaseType": "snapshot"
+  },
+  {
+    "minecraftVersion": "26.2-pre-3",
+    "version": 1073742141,
+    "dataVersion": 4896,
+    "usesNetty": true,
+    "majorVersion": "26.2-pre-3",
+    "releaseType": "snapshot"
+  },
+  {
+    "minecraftVersion": "26.2-pre-2",
+    "version": 1073742140,
+    "dataVersion": 4895,
+    "usesNetty": true,
+    "majorVersion": "26.2-pre-2",
+    "releaseType": "snapshot"
+  },
+  {
+    "minecraftVersion": "26.2-pre-1",
+    "version": 1073742139,
+    "dataVersion": 4894,
+    "usesNetty": true,
+    "majorVersion": "26.2-pre-1",
+    "releaseType": "snapshot"
+  },
+  {
+    "minecraftVersion": "26.2-snapshot-8",
+    "version": 1073742138,
+    "dataVersion": 4893,
+    "usesNetty": true,
+    "majorVersion": "26.2-snapshot-8",
+    "releaseType": "snapshot"
+  },
+  {
+    "minecraftVersion": "26.2-snapshot-7",
+    "version": 1073742137,
+    "dataVersion": 4891,
+    "usesNetty": true,
+    "majorVersion": "26.2-snapshot-7",
+    "releaseType": "snapshot"
+  },
+  {
+    "minecraftVersion": "26.2-snapshot-6",
+    "version": 1073742136,
+    "dataVersion": 4890,
+    "usesNetty": true,
+    "majorVersion": "26.2-snapshot-6",
+    "releaseType": "snapshot"
+  },
   {
     "minecraftVersion": "26.2-snapshot-5",
     "version": 1073742135,

mc/data/minecraft-data/pc/common/versions.json

@@ -69,5 +69,7 @@
   "1.21.8",
   "1.21.9",
   "1.21.10",
-  "1.21.11"
+  "1.21.11",
+  "26.1",
+  "26.2"
 ]

mc/data/protocol_version.go

@@ -20,6 +20,7 @@ type VersionInfo struct {
 
 var ProtocolVersions []VersionInfo
 
+// LookUpVersionByName returns the VersionInfo for the given Minecraft version name (e.g. "1.21.11").
 func LookUpVersionByName(name string) (ret VersionInfo, err error) {
 	for _, v := range ProtocolVersions {
 		if v.MinecraftVersion == name {
@@ -31,6 +32,7 @@ func LookUpVersionByName(name string) (ret VersionInfo, err error) {
 	return
 }
 
+// LookUpVersionByProtocolVersion returns the VersionInfo for the given protocol version number.
 func LookUpVersionByProtocolVersion(version int32) (ret VersionInfo, err error) {
 	for _, v := range ProtocolVersions {
 		if v.Version == version {
@@ -42,6 +44,7 @@ func LookUpVersionByProtocolVersion(version int32) (ret VersionInfo, err error)
 	return
 }
 
+// LookUpVersionByDataVersion returns the VersionInfo for the given Minecraft data version number.
 func LookUpVersionByDataVersion(version int32) (ret VersionInfo, err error) {
 	for _, v := range ProtocolVersions {
 		if v.DataVersion == version {

mc/data/registry.go

@@ -11,6 +11,7 @@ import (
 //go:embed registry/*
 var Registry embed.FS
 
+// LoadRegistry loads a registry NBT file by name from the embedded registry data.
 func LoadRegistry(name string) (n *nbt2.Tag, err error) {
 	r, err := Registry.Open("registry/" + name + ".nbt")
 	if err != nil {

mc/event/event_bus.go

@@ -69,6 +69,8 @@ var WhileClosingErr = errors.New("error while closing")
 var ContextDoneErr = errors.New("context done")
 var RecvNotOkErr = errors.New("recv not ok")
 
+// ValidateHandler validates that h is a function taking a single argument and returning an error.
+// It panics if the handler does not match the expected signature.
 func ValidateHandler(h any) (eventType reflect.Type, hv reflect.Value) {
 	hv = reflect.ValueOf(h)
 	if hv.Kind() != reflect.Func {
@@ -139,9 +141,11 @@ func (l *Loop) RegisterLow(eventType reflect.Type, hv reflect.Value, critical bo
 
 // RegisterCritical registers a handler that will close the loop if it returns an error.
 // Warning: If a bad handler is passed in the program will panic.
-func (l *Loop) RegisterCritical(h any) {
+func (l *Loop) RegisterCritical(hs ...any) {
+	for _, h := range hs {
 		eventType, hv := ValidateHandler(h)
 		l.HandlerFunctions[eventType] = append(l.HandlerFunctions[eventType], hv)
+	}
 }
 
 // FireFound triggers all handlers registered for the specified event type and returns if handlers were found or an error occurred.
@@ -233,6 +237,7 @@ func (l *Loop) StartLoop() (err error) {
 	return
 }
 
+// NewLoop creates a new Loop with a background context.
 func NewLoop() (l *Loop) {
 	return NewLoopCtx(context.Background())
 }

mc/gen/biome_noise.go

@@ -48,6 +48,7 @@ type BiomeNoise struct {
 	Temperature, Humidity, ContinentalNess, Erosion, Shift, Weirdness DoublePerlin
 }
 
+// BiomeNoiseFromXoroshiro creates a BiomeNoise from the given Xoroshiro source.
 func BiomeNoiseFromXoroshiro(x Xoroshiro, large bool) (v BiomeNoise) {
 	x = x.Split()
 

mc/gen/double.go

@@ -6,6 +6,7 @@ type DoublePerlin struct {
 	B         Octave
 }
 
+// DoublePerlinFromXoroshiro creates a DoublePerlin from the given Xoroshiro source.
 func DoublePerlinFromXoroshiro(x *Xoroshiro, amplitudes []float64, omin int, lenn int, nmax int) (d DoublePerlin) {
 	na := -1
 	nb := -1

mc/gen/noise.go

@@ -116,6 +116,7 @@ func (n PerlinNoise) Sample(x, y, z float64, yamp, ymin float64) (v float64) {
 	return lerp(t3, l1, l5)
 }
 
+// PerlinNoiseFromXoroshiro initializes a PerlinNoise from the given Xoroshiro source.
 func PerlinNoiseFromXoroshiro(x Xoroshiro) (p PerlinNoise) {
 	p.xoffset = x.NextFloat64() * 256.0
 	p.yoffset = x.NextFloat64() * 256.0

mc/gen/octave.go

@@ -28,6 +28,7 @@ var octaveLacunaInits = []float64{1, .5, .25, 1. / 8, 1. / 16, 1. / 32, 1. / 64,
 var octavePersistInits = []float64{0, 1, 2. / 3, 4. / 7, 8. / 15, 16. / 31, 32. / 63, 64. / 127, 128. / 255, 256. / 511, 512. / 1023,
 	1024. / 2047, 2048. / 4095, 4096. / 8191, 8192. / 16383, 16384. / 32767, 32768. / 65535}
 
+// OctaveFromXoroshiro creates an Octave (multi-octave Perlin noise) from the given Xoroshiro source.
 func OctaveFromXoroshiro(x *Xoroshiro, amplitudes []float64, omin int, lenn int, nmax int) (o Octave) {
 	if (-omin < 0 || -omin >= len(octaveLacunaInits)) || (lenn < 0 || lenn >= len(octavePersistInits)) {
 		panic("octave initialization out of range")

mc/gen/spline.go

@@ -183,6 +183,7 @@ func landSpline(f, g, h, i, j, k float32, bl bool) Spline {
 	return s
 }
 
+// CreateBiomeDepthSpline builds the Minecraft biome depth spline used for terrain generation.
 func CreateBiomeDepthSpline() Spline {
 	sp1 := landSpline(-0.15, 0.00, 0.0, 0.1, 0.00, -0.03, false)
 	sp2 := landSpline(-0.10, 0.03, 0.1, 0.1, 0.01, -0.03, false)

mc/gen/xoroshiro.go

@@ -42,6 +42,7 @@ func (x *Xoroshiro) NextFloat64() float64 {
 	return float64(x.Next()>>(64-53)) * 1.1102230246251565e-16
 }
 
+// XoroshiroFromString creates an Xoroshiro from an MD5 hash of the given string.
 func XoroshiroFromString(s string) (x Xoroshiro) {
 	sum := md5.Sum([]byte(s))
 	x.L = binary.BigEndian.Uint64(sum[:8])
@@ -49,6 +50,7 @@ func XoroshiroFromString(s string) (x Xoroshiro) {
 	return
 }
 
+// XoroshiroFromSeed creates an Xoroshiro from an int64 seed.
 func XoroshiroFromSeed(seed int64) (x Xoroshiro) {
 	x.L = uint64(seed) ^ 0x6a09e667f3bcc909
 	x.H = x.L + 0x9e3779b97f4a7c15

mc/level/anvil/level.go

@@ -174,6 +174,7 @@ type Attribute struct {
 	Base float64
 }
 
+// ReadLevelData reads and decodes the level.dat NBT file from a reader.
 func ReadLevelData(r io.Reader) (l Level, err error) {
 	var lDataWrapped struct{ Data Level }
 	err = nbt.ReadFile(r, &lDataWrapped)

mc/level/anvil/level_test.go

@@ -42,7 +42,7 @@ func TestRegionFile(t *testing.T) {
 		return
 	}
 
-	fmt.Println(string(util.MustT(json.MarshalIndent(n, "", "  "))))
+	fmt.Println(string(util.MustT(json.MarshalIndent(n, "", "  ")))[100:])
 	fmt.Println("Chunk loaded successfully")
 }
 

mc/level/anvil/mca.go

@@ -52,6 +52,7 @@ type ChunkHeader struct {
 	Chunk, Time [ChunksRegionFile]int32
 }
 
+// ReadChunkHeader reads the chunk header from an MCA region file.
 func ReadChunkHeader(r *os.File) (ch *ChunkHeader, err error) {
 	var h ChunkHeader
 	err = binary.Read(r, binary.BigEndian, &h)

mc/level/chunk.go

@@ -10,6 +10,7 @@ type Chunk struct {
 	Version  string
 }
 
+// ReadChunkFromChunkPacketData decodes chunk packet data from a reader into a Chunk.
 func ReadChunkFromChunkPacketData(r io.Reader, version string, worldHeight int) (c *Chunk, err error) {
 	c = &Chunk{}
 	c.Version = version

mc/level/litematic/main.go

@@ -94,6 +94,7 @@ type Structure struct {
 	Version string
 }
 
+// LoadFromPath loads a litematic file from disk.
 func LoadFromPath(path string) (s *Structure, err error) {
 	f, err := os.Open(path)
 	if err != nil {
@@ -104,6 +105,7 @@ func LoadFromPath(path string) (s *Structure, err error) {
 	return
 }
 
+// LoadFromFile reads and parses a litematic file from a reader.
 func LoadFromFile(r io.Reader) (s *Structure, err error) {
 	n, err := nbt.ReadUnstructuredFile(r)
 	if err != nil {
@@ -112,6 +114,7 @@ func LoadFromFile(r io.Reader) (s *Structure, err error) {
 	return Load(n.Value)
 }
 
+// Load decodes raw NBT data into a litematic Structure.
 func Load(v any) (s *Structure, err error) {
 	s = &Structure{}
 	err = mapstructure.Decode(v, &s.File)

mc/level/section.go

@@ -30,6 +30,7 @@ type Section struct {
 	Blocks, Biomes *Storage
 }
 
+// MakeBiomeFormat returns the StorageFormat for biome data at the given version.
 func MakeBiomeFormat(version string) StorageFormat {
 	directBpe := uint8(math.Ceil(math.Log2(float64(len(data2.BiomesForVersion(version))))))
 	return StorageFormat{
@@ -39,6 +40,7 @@ func MakeBiomeFormat(version string) StorageFormat {
 	}
 }
 
+// MakeBlockFormat returns the StorageFormat for block data at the given version.
 func MakeBlockFormat(version string) StorageFormat {
 	directBpe := uint8(math.Ceil(math.Log2(float64(len(data2.BlocksForVersion(version))))))
 	return StorageFormat{
@@ -51,6 +53,7 @@ func MakeBlockFormat(version string) StorageFormat {
 
 var BadPaletteLenErr = errors.New("bad palette length")
 
+// ReadSectionStorage reads a packed section storage from a reader.
 func ReadSectionStorage(r io.Reader, format StorageFormat) (s *Storage, err error) {
 	var bpe uint8
 	err = binary.Read(r, binary.BigEndian, &bpe)
@@ -97,6 +100,7 @@ func ReadSectionStorage(r io.Reader, format StorageFormat) (s *Storage, err erro
 	return format.ImportFromReader(r, bpe, pallette)
 }
 
+// WriteSectionStorage writes a packed section storage to a writer.
 func WriteSectionStorage(w io.Writer, s *Storage) (err error) {
 	err = binary.Write(w, binary.BigEndian, s.bpe)
 	if err != nil {
@@ -122,6 +126,7 @@ func WriteSectionStorage(w io.Writer, s *Storage) (err error) {
 	return binary.Write(w, binary.BigEndian, s.data)
 }
 
+// SectionDecodePacket decodes a chunk section from the Minecraft packet wire format.
 func SectionDecodePacket(r io.Reader, version string) (s Section, err error) {
 	s = Section{}
 	err = binary.Read(r, binary.BigEndian, &s.BlockCount)
@@ -136,6 +141,7 @@ func SectionDecodePacket(r io.Reader, version string) (s Section, err error) {
 	return
 }
 
+// SectionEncodePacket encodes a chunk section to the Minecraft packet wire format.
 func SectionEncodePacket(w io.Writer, s Section) (err error) {
 	err = binary.Write(w, binary.BigEndian, s.BlockCount)
 	if err != nil {
@@ -149,6 +155,7 @@ func SectionEncodePacket(w io.Writer, s Section) (err error) {
 	return
 }
 
+// SectionEquals returns whether two sections are equal.
 func SectionEquals(a, b Section) bool {
 	if a.BlockCount != b.BlockCount {
 		return false

mc/level/storage.go

@@ -250,6 +250,7 @@ func (r *Storage) Equals(other *Storage) bool {
 	return true
 }
 
+// CountStorage counts the number of elements in the storage that match the given value.
 func CountStorage(s *Storage, v int32) (a int) {
 	for i := range s.format.Len {
 		if w, _ := s.Get(i); w == v {

mc/level/structure/structure.go

@@ -5,6 +5,7 @@ import (
 	"github.com/go-viper/mapstructure/v2"
 )
 
+// Load reads a structure NBT file and returns the decoded Structure.
 func Load(fileName string) (s *Structure, err error) {
 	n, err := nbt.ReadUnstructuredFilePath(fileName)
 	if err != nil {

mc/mapstructure/default.go

@@ -2,6 +2,7 @@ package mapstructure
 
 var DefaultFormat = NewFormat("mapstructure", WithRequireAll(), WithTrySnakeCase(), WithTryLowCase())
 
+// Decode is a stub placeholder. Use Format.Decode instead.
 func Decode(data any, v any) error {
 	return nil
 }

mc/mapstructure/format.go

@@ -25,6 +25,7 @@ type Format struct {
 	encoders map[reflect.Type]func(any, string) (any, error)
 }
 
+// NewFormat creates a new Format with the given name and options.
 func NewFormat(name string, opts ...Option) *Format {
 	f := &Format{
 		Name:     name,
@@ -39,30 +40,35 @@ func NewFormat(name string, opts ...Option) *Format {
 
 type Option func(*Format)
 
+// WithRequireAll returns an Option that requires all struct fields to be present in the map.
 func WithRequireAll() Option {
 	return func(f *Format) {
 		f.requireAll = true
 	}
 }
 
+// WithErrorOnExtra returns an Option that causes an error when the map contains unmatched keys.
 func WithErrorOnExtra() Option {
 	return func(f *Format) {
 		f.errorOnExtra = true
 	}
 }
 
+// WithTrySnakeCase returns an Option that tries to match struct fields using snake_case names.
 func WithTrySnakeCase() Option {
 	return func(f *Format) {
 		f.trySnakeCase = true
 	}
 }
 
+// WithTryLowCase returns an Option that tries to match struct fields using lowercase names.
 func WithTryLowCase() Option {
 	return func(f *Format) {
 		f.tryLowCase = true
 	}
 }
 
+// WithTypeCodec returns an Option that registers custom decode/encode functions for a type.
 func WithTypeCodec(decodeFn, encodeFn any) Option {
 	dt := reflect.TypeOf(decodeFn)
 	et := reflect.TypeOf(encodeFn)
@@ -94,6 +100,7 @@ func WithTypeCodec(decodeFn, encodeFn any) Option {
 	}
 }
 
+// Decode populates target (a pointer to a struct) from data (a map[string]any).
 func (f *Format) Decode(data any, target any) error {
 	v := reflect.ValueOf(target)
 	if v.Kind() != reflect.Pointer || v.IsNil() {
@@ -110,6 +117,7 @@ func (f *Format) Decode(data any, target any) error {
 	return f.decode(m, v)
 }
 
+// Encode converts source (a struct or pointer to a struct) into a map[string]any.
 func (f *Format) Encode(source any) (map[string]any, error) {
 	v := reflect.ValueOf(source)
 	if v.Kind() == reflect.Pointer {

mc/nbt/file.go

@@ -10,6 +10,7 @@ import (
 
 var Format = mapstructure.NewFormat("nbt", mapstructure.WithRequireAll(), mapstructure.WithTrySnakeCase(), mapstructure.WithTryLowCase())
 
+// ReadFile reads a gzipped NBT file from r and decodes it into data using the package-level Format.
 func ReadFile(file io.Reader, data any) (err error) {
 	n, err := ReadUnstructuredFile(file)
 	if err != nil {
@@ -18,6 +19,7 @@ func ReadFile(file io.Reader, data any) (err error) {
 	return Format.Decode(n.Value, data)
 }
 
+// WriteUnstructuredFilePath writes an NBT tag as a gzipped file to the given filesystem path.
 func WriteUnstructuredFilePath(path string, n *Tag) (err error) {
 	f, err := os.Create(path)
 	if err != nil {
@@ -27,6 +29,7 @@ func WriteUnstructuredFilePath(path string, n *Tag) (err error) {
 	return WriteUnstructuredFile(f, n)
 }
 
+// WriteUnstructuredFile writes an NBT tag as a gzipped file to w.
 func WriteUnstructuredFile(file io.Writer, n *Tag) (err error) {
 	gzw := gzip.NewWriter(file)
 	defer gzw.Close()
@@ -34,6 +37,7 @@ func WriteUnstructuredFile(file io.Writer, n *Tag) (err error) {
 	return
 }
 
+// ReadUnstructuredFile reads a gzipped NBT file from r and returns the root Tag.
 func ReadUnstructuredFile(file io.Reader) (n *Tag, err error) {
 	r, err := gzip.NewReader(file)
 	if err != nil {
@@ -45,6 +49,7 @@ func ReadUnstructuredFile(file io.Reader) (n *Tag, err error) {
 	return
 }
 
+// ReadUnstructuredFilePath reads a gzipped NBT file from the given filesystem path and returns the root Tag.
 func ReadUnstructuredFilePath(path string) (n *Tag, err error) {
 	f, err := os.Open(path)
 	if err != nil {

mc/proto/connection.go

@@ -73,6 +73,7 @@ type Conn struct {
 	Log *slog.Logger
 }
 
+// StartConn starts the connection event loop, registering the receive routine and login tick handler.
 func (c *Conn) StartConn() (err error) {
 	c.RegisterEventSource(c.ActivateReceiveRoutine())
 	c.RegisterCritical(c.OnLoginTick)
@@ -81,6 +82,7 @@ func (c *Conn) StartConn() (err error) {
 	return
 }
 
+// OnLoginTick handles a login tick by receiving a packet and firing it as an event.
 func (c *Conn) OnLoginTick(_ LoginTick) (err error) {
 	packet, err := c.Receive()
 	if err != nil {
@@ -90,30 +92,35 @@ func (c *Conn) OnLoginTick(_ LoginTick) (err error) {
 	return
 }
 
+// SetState sets the connection's protocol state.
 func (c *Conn) SetState(state proto_base.State) {
 	c.stateMutex.Lock()
 	defer c.stateMutex.Unlock()
 	c.state = state
 }
 
+// State returns the current connection protocol state.
 func (c *Conn) State() proto_base.State {
 	c.stateMutex.RLock()
 	defer c.stateMutex.RUnlock()
 	return c.state
 }
 
+// SetAsyncPackets enables or disables asynchronous packet handling in the receive routine.
 func (c *Conn) SetAsyncPackets(asyncPackets bool) {
 	c.asyncPacketsMutex.Lock()
 	defer c.asyncPacketsMutex.Unlock()
 	c.asyncPackets = asyncPackets
 }
 
+// GetAsyncPackets returns whether asynchronous packet handling is enabled.
 func (c *Conn) GetAsyncPackets() bool {
 	c.asyncPacketsMutex.RLock()
 	defer c.asyncPacketsMutex.RUnlock()
 	return c.asyncPackets
 }
 
+// SetVersion sets the connection's Minecraft version by version name and looks up the corresponding protocol version.
 func (c *Conn) SetVersion(version string) (err error) {
 	versionData, err := data.LookUpVersionByName(version)
 	if err != nil {
@@ -124,6 +131,7 @@ func (c *Conn) SetVersion(version string) (err error) {
 	return
 }
 
+// SetProtocolVersion sets the connection's version by protocol version number and looks up the corresponding version name.
 func (c *Conn) SetProtocolVersion(version int32) (err error) {
 	versionData, err := data.LookUpVersionByProtocolVersion(version)
 	if err != nil {
@@ -166,13 +174,14 @@ func (c *Conn) ActivateReceiveRoutine() (chSending <-chan any) {
 func (c *Conn) translatePacketVersion(packet proto_base.EncodeDecodeAble, packetInfo proto_base.PacketInfo) (convertedPacket proto_base.EncodeDecodeAble, packetInfoReal proto_base.PacketInfo, err error) {
 	packetInfoReal, found := LookupPacketInfoByNameProtocolVersionStateAndDirection(packetInfo.Name, c.ProtocolVersion, c.State(), packetInfo.Direction)
 	if !found {
-		err = PacketDoesntExistInFutureVersionErr
+		err = fmt.Errorf("%w: %s from pv%d to pv%d in %s/%s not found", PacketDoesntExistInFutureVersionErr, packetInfo.Name, packetInfo.ProtocolVersion, c.ProtocolVersion, packetInfo.State, packetInfo.Direction)
 		return
 	}
 
 	dstType := reflect.TypeOf(packetInfoReal.Type)
-	if !SmartConvertibleTo(reflect.TypeOf(packetInfo.Type), dstType) {
+	srcType := reflect.TypeOf(packetInfo.Type)
-		err = CantTranslateErr
+	if !SmartConvertibleTo(srcType, dstType) {
+		err = fmt.Errorf("%w: %s from pv%d to pv%d in %s/%s (src=%s dst=%s)", CantTranslateErr, packetInfo.Name, packetInfo.ProtocolVersion, c.ProtocolVersion, packetInfo.State, packetInfo.Direction, srcType, dstType)
 		return
 	}
 	// can't fail cause pacetinfo.type is proto_base.EncodeDecodeAble
@@ -201,6 +210,7 @@ func SimplePacketToBytes(packet proto_base.EncodeDecodeAble) (b []byte, err erro
 	return
 }
 
+// SimplePacketToBytesLenPrefix is like SimplePacketToBytes but also prepends the length-prefix framing.
 func SimplePacketToBytesLenPrefix(packet proto_base.EncodeDecodeAble) (b []byte, err error) {
 	b, err = SimplePacketToBytes(packet)
 	if err != nil {
@@ -281,6 +291,7 @@ func (c *Conn) sendRegisteredPacket(packet proto_base.EncodeDecodeAble) (err err
 	return c.SendRaw(packetBuff.Bytes())
 }
 
+// Send encodes and sends a packet to the remote peer, translating protocol versions if needed.
 func (c *Conn) Send(packet proto_base.EncodeDecodeAble) (err error) {
 	switch packet := packet.(type) {
 	case *UnCodablePacket:
@@ -291,6 +302,7 @@ func (c *Conn) Send(packet proto_base.EncodeDecodeAble) (err error) {
 	return
 }
 
+// Receive reads and decodes a raw packet from the remote peer.
 func (c *Conn) Receive() (packet proto_base.EncodeDecodeAble, err error) {
 	if c.R == nil {
 		return
@@ -334,10 +346,12 @@ func (c *Conn) Receive() (packet proto_base.EncodeDecodeAble, err error) {
 	}
 	return
 }
+// NewConn creates a new Conn with default settings and a background context.
 func NewConn() (ret *Conn) {
 	return NewConnCtx(context.Background())
 }
 
+// NewConnCtx creates a new Conn with the given context, setting the handshaking state and latest version.
 func NewConnCtx(ctx context.Context) (ret *Conn) {
 	ret = &Conn{}
 	ret.SetState(proto_base.Handshaking)

mc/proto/packet_lookup.go

@@ -22,6 +22,7 @@ func init() {
 	}
 }
 
+// LookUpTypeByPacketInfo looks up a packet's type information by direction, state, packet id, and protocol version.
 func LookUpTypeByPacketInfo(direction proto_base.Direction, state proto_base.State, pid, version int32) (p proto_base.PacketInfo, ok bool) {
 	pP, ok := pidMap[PidEtc{direction, state, pid, version}]
 	if !ok {
@@ -39,6 +40,7 @@ func LookUpTypeByPacketInfo(direction proto_base.Direction, state proto_base.Sta
 	return
 }
 
+// LookUpTypeByPacketInfoAndCopyType looks up a packet and returns a newly allocated instance of its type.
 func LookUpTypeByPacketInfoAndCopyType(direction proto_base.Direction, state proto_base.State, pid, version int32) (p proto_base.EncodeDecodeAble, ok bool) {
 	i, ok := LookUpTypeByPacketInfo(direction, state, pid, version)
 	if !ok {
@@ -48,6 +50,7 @@ func LookUpTypeByPacketInfoAndCopyType(direction proto_base.Direction, state pro
 	return
 }
 
+// LookupPacketInfoByType looks up a packet's type information by matching against the type of the given packet value.
 func LookupPacketInfoByType(packet proto_base.EncodeDecodeAble) (p proto_base.PacketInfo, ok bool) {
 	undecodedPacket, isUndecoable := packet.(*UnCodablePacket)
 	if isUndecoable {
@@ -64,6 +67,7 @@ func LookupPacketInfoByType(packet proto_base.EncodeDecodeAble) (p proto_base.Pa
 	return
 }
 
+// LookupPacketInfoByTypeAndState looks up a packet's type information by type and state.
 func LookupPacketInfoByTypeAndState(packet proto_base.EncodeDecodeAble, state proto_base.State) (p proto_base.PacketInfo, ok bool) {
 	for _, p := range proto_generated.Packets {
 		if state == p.State && reflect.TypeOf(p.Type) == reflect.TypeOf(packet) {
@@ -73,6 +77,7 @@ func LookupPacketInfoByTypeAndState(packet proto_base.EncodeDecodeAble, state pr
 	return
 }
 
+// LookupPacketInfoByNameProtocolVersionAndState looks up a packet's type information by name, protocol version, and state.
 func LookupPacketInfoByNameProtocolVersionAndState(name string, version int32, state proto_base.State) (p proto_base.PacketInfo, ok bool) {
 	for _, p := range proto_generated.Packets {
 		if state == p.State && p.Name == name && p.ProtocolVersion == version {
@@ -82,6 +87,7 @@ func LookupPacketInfoByNameProtocolVersionAndState(name string, version int32, s
 	return
 }
 
+// LookupPacketInfoByNameProtocolVersionStateAndDirection looks up a packet's type information by name, protocol version, state, and direction.
 func LookupPacketInfoByNameProtocolVersionStateAndDirection(name string, version int32, state proto_base.State, direction proto_base.Direction) (p proto_base.PacketInfo, ok bool) {
 	for _, p := range proto_generated.Packets {
 		if state == p.State && p.Name == name && p.ProtocolVersion == version && p.Direction == direction {

mc/proto/raw_conn.go

@@ -20,21 +20,33 @@ type RawConn struct {
 	W                       io.Writer
 	compressionThreshold    int32
 	CompressionThresholdMut sync.RWMutex
+
+	// MaxPacketSize is the maximum size of a packet that can be sent or received.
+	// Applies to both raw and compressed packets.
+	// Should be set while the connection is not in use. Or in sync mode.
+	MaxPacketSize int32
 }
 
+// SetCompressionThreshold sets the packet compression threshold. Values below 0 disable compression.
 func (c *RawConn) SetCompressionThreshold(threshold int32) {
 	c.CompressionThresholdMut.Lock()
 	defer c.CompressionThresholdMut.Unlock()
 	c.compressionThreshold = threshold
 }
 
+// GetCompressionThreshold returns the current compression threshold.
 func (c *RawConn) GetCompressionThreshold() int32 {
 	c.CompressionThresholdMut.RLock()
 	defer c.CompressionThresholdMut.RUnlock()
 	return c.compressionThreshold
 }
 
+// SendRaw sends raw packet bytes over the connection, applying compression if the threshold is met.
 func (c *RawConn) SendRaw(rawPacketBytes []byte) (err error) {
+	if c.MaxPacketSize > 0 && int32(len(rawPacketBytes)) > c.MaxPacketSize {
+		err = errors.New("packet too large")
+		return
+	}
 	//fmt.Println("send:", rawPacketBytes)
 	var packetBytes []byte
 	threshold := c.GetCompressionThreshold()
@@ -45,7 +57,7 @@ func (c *RawConn) SendRaw(rawPacketBytes []byte) (err error) {
 			if err != nil {
 				return
 			}
-			zW := zlib.NewWriter(packetBuffer) // ignore we don't care about the result if it errors
+			zW := zlib.NewWriter(packetBuffer)
 			_, err = zW.Write(rawPacketBytes)
 			if err != nil {
 				return
@@ -81,11 +93,17 @@ func (c *RawConn) SendRaw(rawPacketBytes []byte) (err error) {
 	return
 }
 
+// ReceiveRaw reads and decompresses (if needed) a raw packet from the connection.
 func (c *RawConn) ReceiveRaw() (packetBytes []byte, err error) {
 	rawPacketLen, err := proto_base.DecodeVarInt(c.R)
 	if err != nil {
 		return
 	}
+	if c.MaxPacketSize > 0 && rawPacketLen > c.MaxPacketSize {
+		err = errors.New("packet too large")
+		return
+	}
+
 	rawPacketBytes, err := io.ReadAll(io.LimitReader(c.R, int64(rawPacketLen)))
 	if err != nil {
 		return
@@ -101,6 +119,10 @@ func (c *RawConn) ReceiveRaw() (packetBytes []byte, err error) {
 		if err != nil {
 			return
 		}
+		if c.MaxPacketSize > 0 && packetLen > c.MaxPacketSize {
+			err = errors.New("deflated packet too large")
+			return
+		}
 		if packetLen == 0 {
 			packetBytes, err = io.ReadAll(rawPacketBuffer)
 			if err != nil {
@@ -124,6 +146,7 @@ func (c *RawConn) ReceiveRaw() (packetBytes []byte, err error) {
 	return
 }
 
+// SetSecret enables AES/CFB8 encryption on the connection using the shared secret.
 func (c *RawConn) SetSecret(sharedSecret []byte) (err error) {
 	var b cipher.Block
 	b, err = aes.NewCipher(sharedSecret)

mc/proto/replay/reader.go

@@ -16,6 +16,7 @@ type Reader struct {
 	Version int32
 }
 
+// NewReader creates a new replay Reader from an io.Reader.
 func NewReader(r io.Reader) *Reader {
 	return &Reader{r: r}
 }

mc/proto/replay/writer.go

@@ -13,6 +13,7 @@ type Writer struct {
 	w io.Writer
 }
 
+// NewWriter creates a new replay Writer from an io.Writer.
 func NewWriter(w io.Writer) *Writer {
 	return &Writer{w: w}
 }

mc/proto/smart_convert.go

@@ -11,6 +11,7 @@ import (
 	"github.com/admin-else/strom/mc/proto_generated"
 )
 
+// SmartConvertibleTo reports whether a value of type from can be recursively converted to type to.
 func SmartConvertibleTo(from, to reflect.Type) bool {
 	switch from.Kind() {
 	case reflect.Struct:
@@ -36,6 +37,7 @@ func SmartConvertibleTo(from, to reflect.Type) bool {
 	}
 }
 
+// SmartConvert recursively converts a reflect.Value from one type to another compatible type.
 func SmartConvert(from reflect.Value, to reflect.Type) (ret reflect.Value) {
 	switch from.Kind() {
 	case reflect.Struct:

mc/proto/smart_convert_test.go

@@ -8,6 +8,7 @@ import (
 	"github.com/admin-else/strom/mc/proto_generated/v1_21_11"
 	"github.com/admin-else/strom/mc/proto_generated/v1_21_8"
 	"github.com/admin-else/strom/mc/proto_generated/v1_21_9"
+	"github.com/admin-else/strom/mc/proto_generated/v26_2"
 )
 
 func TestCanSmartConvert(t *testing.T) {
@@ -66,3 +67,15 @@ func TestSmartConvert(t *testing.T) {
 		}
 	}
 }
+
+func TestLoginSuccessNotConvertibleAcross26_2(t *testing.T) {
+	// login_success gained an extra SessionId field in 26.2, so it is not
+	// smart-convertible in either direction. This is why the login server has
+	// version-gated send code and the login client has a dedicated 26.2 handler.
+	if proto2.SmartConvertibleTo(reflect.TypeFor[*v1_21_8.LoginToClientPacketSuccess](), reflect.TypeFor[*v26_2.LoginToClientPacketSuccess]()) {
+		t.Fatal("expected v1_21_8 login_success NOT to be convertible to v26_2")
+	}
+	if proto2.SmartConvertibleTo(reflect.TypeFor[*v26_2.LoginToClientPacketSuccess](), reflect.TypeFor[*v1_21_8.LoginToClientPacketSuccess]()) {
+		t.Fatal("expected v26_2 login_success NOT to be convertible to v1_21_8")
+	}
+}

mc/proto_base/base_types.go

@@ -7,10 +7,12 @@ import (
 	"math"
 )
 
+// UnimplementedErr is returned when a code path is not yet implemented.
 var (
 	UnimplementedErr = errors.New("unimplemented")
 )
 
+// Direction indicates whether a packet is sent to the server or to the client.
 type Direction int
 
 const (
@@ -18,6 +20,7 @@ const (
 	ToClient
 )
 
+// String returns a human-readable representation of the Direction.
 func (d Direction) String() string {
 	switch d {
 	case ToServer:
@@ -29,10 +32,12 @@ func (d Direction) String() string {
 	}
 }
 
+// Opposite returns the reverse Direction.
 func (d Direction) Opposite() Direction {
 	return d ^ 1
 }
 
+// State represents the Minecraft connection state.
 type State int32
 
 const (
@@ -43,6 +48,7 @@ const (
 	Play
 )
 
+// String returns a human-readable representation of the State.
 func (s State) String() string {
 	switch s {
 	case Handshaking:
@@ -60,13 +66,16 @@ func (s State) String() string {
 	}
 }
 
+// Actor represents a participant in a Minecraft connection.
 type Actor int
 
 const (
-	Servee Actor = iota // Servee is the one being served
+	// Servee is the one being served (e.g. the backend server in a proxy).
+	Servee Actor = iota
 	Client
 )
 
+// String returns a human-readable representation of the Actor.
 func (a Actor) String() string {
 	switch a {
 	case Servee:
@@ -78,6 +87,7 @@ func (a Actor) String() string {
 	}
 }
 
+// SendDirection returns the Direction in which this Actor sends packets.
 func (a Actor) SendDirection() Direction {
 	switch a {
 	case Servee:
@@ -89,6 +99,7 @@ func (a Actor) SendDirection() Direction {
 	}
 }
 
+// ReceiveDirection returns the Direction from which this Actor receives packets.
 func (a Actor) ReceiveDirection() Direction {
 	switch a {
 	case Servee:
@@ -101,13 +112,19 @@ func (a Actor) ReceiveDirection() Direction {
 }
 
 type (
+	// ToDo is a placeholder type for unimplemented packet fields.
 	ToDo       struct{}
+	// RestBuffer represents the remaining unread bytes in a packet buffer.
 	RestBuffer []byte
 )
 
+// ToDoError is returned when a ToDo placeholder is used.
 var ToDoError = errors.New("to do")
+
+// BadTypeError is returned when an unexpected type is encountered.
 var BadTypeError = errors.New("bad type")
 
+// Encode writes the RestBuffer to w.
 func (b *RestBuffer) Encode(w io.Writer) (err error) {
 	n, err := w.Write(*b)
 	if n != len(*b) {
@@ -116,11 +133,13 @@ func (b *RestBuffer) Encode(w io.Writer) (err error) {
 	return
 }
 
+// Decode reads all remaining bytes from r into the RestBuffer.
 func (b *RestBuffer) Decode(r io.Reader) (err error) {
 	*b, err = io.ReadAll(r)
 	return
 }
 
+// EncodeString encodes a length-prefixed UTF-8 string in Minecraft varint format.
 func EncodeString(w io.Writer, s string) (err error) {
 	err = EncodeVarInt(w, int32(len(s)))
 	if err != nil {
@@ -130,6 +149,7 @@ func EncodeString(w io.Writer, s string) (err error) {
 	return
 }
 
+// DecodeString decodes a length-prefixed UTF-8 string in Minecraft varint format.
 func DecodeString(r io.Reader) (ret string, err error) {
 	l, err := DecodeVarInt(r)
 	if err != nil {
@@ -146,16 +166,19 @@ func DecodeString(r io.Reader) (ret string, err error) {
 	return string(rawString), nil
 }
 
+// Encode is a no-op stub that always returns ToDoError.
 func (t ToDo) Encode(_ io.Writer) (err error) {
 	err = ToDoError
 	return
 }
 
+// Decode is a no-op stub that always returns ToDoError.
 func (t ToDo) Decode(_ io.Reader) (ret ToDo, err error) {
 	err = ToDoError
 	return
 }
 
+// EncodeVarInt encodes a signed 32-bit integer in Minecraft varint format.
 func EncodeVarInt(w io.Writer, v int32) (err error) {
 	uv := uint32(v)
 	for {
@@ -175,6 +198,7 @@ func EncodeVarInt(w io.Writer, v int32) (err error) {
 	return nil
 }
 
+// DecodeVarInt decodes a signed 32-bit integer in Minecraft varint format.
 func DecodeVarInt(r io.Reader) (ret int32, err error) {
 	for i := range 5 { // 32/7
 		var b uint8 = 0
@@ -191,6 +215,7 @@ func DecodeVarInt(r io.Reader) (ret int32, err error) {
 	return
 }
 
+// EncodeVarLong encodes a signed 64-bit integer in Minecraft varlong format.
 func EncodeVarLong(w io.Writer, v int64) (err error) {
 	uv := uint64(v)
 	for {
@@ -210,6 +235,7 @@ func EncodeVarLong(w io.Writer, v int64) (err error) {
 	return nil
 }
 
+// DecodeVarLong decodes a signed 64-bit integer in Minecraft varlong format.
 func DecodeVarLong(r io.Reader) (ret int64, err error) {
 	for i := range 10 { // ceil(64/7)
 		var b uint8
@@ -226,6 +252,7 @@ func DecodeVarLong(r io.Reader) (ret int64, err error) {
 	return
 }
 
+// ErroringIndex looks up key k in map m and returns an error if the key is not found.
 func ErroringIndex[K comparable, V any, M map[K]V](m M, i K) (v V, err error) {
 	var ok bool
 	v, ok = m[i]
@@ -235,20 +262,14 @@ func ErroringIndex[K comparable, V any, M map[K]V](m M, i K) (v V, err error) {
 	return
 }
 
+// EncodeDecodeAble is implemented by types that can be encoded and decoded for
+// Minecraft protocol packets.
 type EncodeDecodeAble interface {
 	Encode(w io.Writer) (err error)
 	Decode(r io.ReadSeeker) (err error)
 }
 
-type Void struct{}
+// PacketInfo holds metadata about a Minecraft protocol packet.
-
-func (v Void) Encode(w io.Writer) (err error) {
-	return
-}
-func (v Void) Decode(r io.ReadSeeker) (err error) {
-	return
-}
-
 type PacketInfo struct {
 	Type            EncodeDecodeAble
 	Name            string
@@ -258,6 +279,7 @@ type PacketInfo struct {
 	ProtocolVersion int32
 }
 
+// Bool2uint8 converts a bool to a uint8 (1 for true, 0 for false).
 func Bool2uint8(b bool) uint8 {
 	if b {
 		return 1
@@ -265,6 +287,7 @@ func Bool2uint8(b bool) uint8 {
 	return 0
 }
 
+// Bool2uint16 converts a bool to a uint16 (1 for true, 0 for false).
 func Bool2uint16(b bool) uint16 {
 	if b {
 		return 1
@@ -272,6 +295,7 @@ func Bool2uint16(b bool) uint16 {
 	return 0
 }
 
+// Bool2uint32 converts a bool to a uint32 (1 for true, 0 for false).
 func Bool2uint32(b bool) uint32 {
 	if b {
 		return 1
@@ -279,6 +303,7 @@ func Bool2uint32(b bool) uint32 {
 	return 0
 }
 
+// Bool2uint64 converts a bool to a uint64 (1 for true, 0 for false).
 func Bool2uint64(b bool) uint64 {
 	if b {
 		return 1
@@ -286,13 +311,17 @@ func Bool2uint64(b bool) uint64 {
 	return 0
 }
 
+// LpVec3d is a compressed 3D velocity vector used in Minecraft packets.
 type LpVec3d struct {
 	X, Y, Z float64
 }
 
+// Encode encodes the LpVec3d as a compressed velocity triple into w.
 func (v *LpVec3d) Encode(w io.Writer) error {
 	return writeVelocity(w, *v)
 }
+
+// Decode decodes a compressed velocity triple from r into the LpVec3d.
 func (v *LpVec3d) Decode(r io.ReadSeeker) error {
 	v3, err := readVelocity(r)
 	if err != nil {

mc/proto_generated/v1_21_11/proto.go

@@ -1,6 +1,6 @@
 // Code generated by strom. DO NOT EDIT.
-// source: minecraft-data/pc/1.21.11/protocol.json (sha256:5d0fffae79fe3d99919d16f79ed22d4c76d80fcddf92868b93abda1f55867dd8)
+// source: minecraft-data/pc/1.21.11/protocol.json (sha256:97d2726cce3a39cc967a954f27f4ebf029ec3f0f655bb21942aab8745d13cdab)
-// version: (devel) (go1.26.4-X:nodwarf5)
+// version: v0.6.3-0.20260723203259-d84618c116b8+dirty (go1.26.5-X:nodwarf5)
 package v1_21_11
 
 import (
@@ -11447,7 +11447,10 @@ func (ret *PlayToClientPacket) Decode(r io.ReadSeeker) (err error) {
 		}
 		ret.Params = PlayToClientPacketParamsBossBarTmp
 	case "bundle_delimiter":
-		var PlayToClientPacketParamsBundleDelimiterTmp struct {
+		var PlayToClientPacketParamsBundleDelimiterTmp PlayToClientPacketBundleDelimiter
+		err = PlayToClientPacketParamsBundleDelimiterTmp.Decode(r)
+		if err != nil {
+			return
 		}
 		ret.Params = PlayToClientPacketParamsBundleDelimiterTmp
 	case "camera":
@@ -12467,12 +12470,15 @@ func (ret *PlayToClientPacket) Encode(w io.Writer) (err error) {
 			return
 		}
 	case "bundle_delimiter":
-		_, ok := ret.Params.(struct {
+		PlayToClientPacketParams, ok := ret.Params.(PlayToClientPacketBundleDelimiter)
-		})
 		if !ok {
 			err = proto_base.BadTypeError
 			return
 		}
+		err = PlayToClientPacketParams.Encode(w)
+		if err != nil {
+			return
+		}
 	case "camera":
 		PlayToClientPacketParams, ok := ret.Params.(PlayToClientPacketCamera)
 		if !ok {
@@ -14705,6 +14711,16 @@ func (ret *PlayToClientPacketBossBar) Encode(w io.Writer) (err error) {
 	return
 }
 
+type PlayToClientPacketBundleDelimiter struct {
+}
+
+func (ret *PlayToClientPacketBundleDelimiter) Decode(r io.ReadSeeker) (err error) {
+	return
+}
+func (ret *PlayToClientPacketBundleDelimiter) Encode(w io.Writer) (err error) {
+	return
+}
+
 type PlayToClientPacketCamera struct {
 	CameraId int32
 }

mc/proto_generated/v1_21_8/proto.go

@@ -1,6 +1,6 @@
 // Code generated by strom. DO NOT EDIT.
-// source: minecraft-data/pc/1.21.8/protocol.json (sha256:627f4138d1a6e4a6fff1cde6008c95a72cd580728aafca8ba62ad0ef21c88f61)
+// source: minecraft-data/pc/1.21.8/protocol.json (sha256:930fbb4c69fd2ecadddcee3c38d3f02908adc23b54b707cb21112e7ab1e9dba1)
-// version: (devel) (go1.26.4-X:nodwarf5)
+// version: v0.6.3-0.20260723203259-d84618c116b8+dirty (go1.26.5-X:nodwarf5)
 package v1_21_8
 
 import (
@@ -10166,7 +10166,10 @@ func (ret *PlayToClientPacket) Decode(r io.ReadSeeker) (err error) {
 		}
 		ret.Params = PlayToClientPacketParamsBossBarTmp
 	case "bundle_delimiter":
-		var PlayToClientPacketParamsBundleDelimiterTmp struct {
+		var PlayToClientPacketParamsBundleDelimiterTmp PlayToClientPacketBundleDelimiter
+		err = PlayToClientPacketParamsBundleDelimiterTmp.Decode(r)
+		if err != nil {
+			return
 		}
 		ret.Params = PlayToClientPacketParamsBundleDelimiterTmp
 	case "camera":
@@ -11151,12 +11154,15 @@ func (ret *PlayToClientPacket) Encode(w io.Writer) (err error) {
 			return
 		}
 	case "bundle_delimiter":
-		_, ok := ret.Params.(struct {
+		PlayToClientPacketParams, ok := ret.Params.(PlayToClientPacketBundleDelimiter)
-		})
 		if !ok {
 			err = proto_base.BadTypeError
 			return
 		}
+		err = PlayToClientPacketParams.Encode(w)
+		if err != nil {
+			return
+		}
 	case "camera":
 		PlayToClientPacketParams, ok := ret.Params.(PlayToClientPacketCamera)
 		if !ok {
@@ -13339,6 +13345,16 @@ func (ret *PlayToClientPacketBossBar) Encode(w io.Writer) (err error) {
 	return
 }
 
+type PlayToClientPacketBundleDelimiter struct {
+}
+
+func (ret *PlayToClientPacketBundleDelimiter) Decode(r io.ReadSeeker) (err error) {
+	return
+}
+func (ret *PlayToClientPacketBundleDelimiter) Encode(w io.Writer) (err error) {
+	return
+}
+
 type PlayToClientPacketCamera struct {
 	CameraId int32
 }
@@ -22720,7 +22736,7 @@ type PlayToServerPacketChatCommandSigned struct {
 	}
 	MessageCount int32
 	Acknowledged [3]byte
-	Checksum     int8
+	Checksum     uint8
 }
 
 func (ret *PlayToServerPacketChatCommandSigned) Decode(r io.ReadSeeker) (err error) {
@@ -22825,7 +22841,7 @@ type PlayToServerPacketChatMessage struct {
 	Signature    *[256]byte
 	Offset       int32
 	Acknowledged [3]byte
-	Checksum     int8
+	Checksum     uint8
 }
 
 func (ret *PlayToServerPacketChatMessage) Decode(r io.ReadSeeker) (err error) {
@@ -23775,7 +23791,7 @@ func (ret *PlayToServerPacketEditBook) Encode(w io.Writer) (err error) {
 
 type PlayToServerPacketEnchantItem struct {
 	WindowId    ContainerID
-	Enchantment int8
+	Enchantment int32
 }
 
 func (ret *PlayToServerPacketEnchantItem) Decode(r io.ReadSeeker) (err error) {
@@ -23783,7 +23799,7 @@ func (ret *PlayToServerPacketEnchantItem) Decode(r io.ReadSeeker) (err error) {
 	if err != nil {
 		return
 	}
-	err = binary.Read(r, binary.BigEndian, &ret.Enchantment)
+	ret.Enchantment, err = proto_base.DecodeVarInt(r)
 	if err != nil {
 		return
 	}
@@ -23794,7 +23810,7 @@ func (ret *PlayToServerPacketEnchantItem) Encode(w io.Writer) (err error) {
 	if err != nil {
 		return
 	}
-	err = binary.Write(w, binary.BigEndian, ret.Enchantment)
+	err = proto_base.EncodeVarInt(w, ret.Enchantment)
 	if err != nil {
 		return
 	}

mc/proto_generated/v1_21_9/proto.go

@@ -1,6 +1,6 @@
 // Code generated by strom. DO NOT EDIT.
-// source: minecraft-data/pc/1.21.9/protocol.json (sha256:5c5c5947ac583745cb1ea9a8b2fa654f0356349f37fa0248ba2e44baf4e5c485)
+// source: minecraft-data/pc/1.21.9/protocol.json (sha256:9861cee397931c678c3b1837dcdf82e3fc885442c6bd0e4a60522fbf26653e59)
-// version: (devel) (go1.26.4-X:nodwarf5)
+// version: v0.6.3-0.20260723203259-d84618c116b8+dirty (go1.26.5-X:nodwarf5)
 package v1_21_9
 
 import (
@@ -11270,7 +11270,10 @@ func (ret *PlayToClientPacket) Decode(r io.ReadSeeker) (err error) {
 		}
 		ret.Params = PlayToClientPacketParamsBossBarTmp
 	case "bundle_delimiter":
-		var PlayToClientPacketParamsBundleDelimiterTmp struct {
+		var PlayToClientPacketParamsBundleDelimiterTmp PlayToClientPacketBundleDelimiter
+		err = PlayToClientPacketParamsBundleDelimiterTmp.Decode(r)
+		if err != nil {
+			return
 		}
 		ret.Params = PlayToClientPacketParamsBundleDelimiterTmp
 	case "camera":
@@ -12290,12 +12293,15 @@ func (ret *PlayToClientPacket) Encode(w io.Writer) (err error) {
 			return
 		}
 	case "bundle_delimiter":
-		_, ok := ret.Params.(struct {
+		PlayToClientPacketParams, ok := ret.Params.(PlayToClientPacketBundleDelimiter)
-		})
 		if !ok {
 			err = proto_base.BadTypeError
 			return
 		}
+		err = PlayToClientPacketParams.Encode(w)
+		if err != nil {
+			return
+		}
 	case "camera":
 		PlayToClientPacketParams, ok := ret.Params.(PlayToClientPacketCamera)
 		if !ok {
@@ -14528,6 +14534,16 @@ func (ret *PlayToClientPacketBossBar) Encode(w io.Writer) (err error) {
 	return
 }
 
+type PlayToClientPacketBundleDelimiter struct {
+}
+
+func (ret *PlayToClientPacketBundleDelimiter) Decode(r io.ReadSeeker) (err error) {
+	return
+}
+func (ret *PlayToClientPacketBundleDelimiter) Encode(w io.Writer) (err error) {
+	return
+}
+
 type PlayToClientPacketCamera struct {
 	CameraId int32
 }
@@ -24089,7 +24105,7 @@ type PlayToServerPacketChatCommandSigned struct {
 	}
 	MessageCount int32
 	Acknowledged [3]byte
-	Checksum     int8
+	Checksum     uint8
 }
 
 func (ret *PlayToServerPacketChatCommandSigned) Decode(r io.ReadSeeker) (err error) {
@@ -25175,7 +25191,7 @@ func (ret *PlayToServerPacketEditBook) Encode(w io.Writer) (err error) {
 
 type PlayToServerPacketEnchantItem struct {
 	WindowId    ContainerID
-	Enchantment int8
+	Enchantment int32
 }
 
 func (ret *PlayToServerPacketEnchantItem) Decode(r io.ReadSeeker) (err error) {
@@ -25183,7 +25199,7 @@ func (ret *PlayToServerPacketEnchantItem) Decode(r io.ReadSeeker) (err error) {
 	if err != nil {
 		return
 	}
-	err = binary.Read(r, binary.BigEndian, &ret.Enchantment)
+	ret.Enchantment, err = proto_base.DecodeVarInt(r)
 	if err != nil {
 		return
 	}
@@ -25194,7 +25210,7 @@ func (ret *PlayToServerPacketEnchantItem) Encode(w io.Writer) (err error) {
 	if err != nil {
 		return
 	}
-	err = binary.Write(w, binary.BigEndian, ret.Enchantment)
+	err = proto_base.EncodeVarInt(w, ret.Enchantment)
 	if err != nil {
 		return
 	}