Merge remote-tracking branch 'gitlab/master'

- Switch bitfield decoder from shift-based to mask-based extraction (var>>pos & mask)
  fixes non-power-of-2 bitfields like 6-bit command_node flags
- Fix MultiTypeFix to handle CaseExprTypeOnlyNumber/OnlyBool variants
- Update minecraft-data command_node bitfield order for all 1.21.8+ versions
  to LSB-first convention (matches reverse encoder/decoder)
- Implement SwitchDecoder for extraNodeData via compareTo visitor
- DeclareCommands now decodes successfully (was EOF)
- Add 6 regression tests (entity_equipment, metadata, recipes, commands)

.gitattributes

@@ -1,6 +0,0 @@
-**/*_test.go export-ignore
-**/testdata export-ignore
-*.zip filter=lfs diff=lfs merge=lfs -text
-*.tmcpr filter=lfs diff=lfs merge=lfs -text
-*.mcpr filter=lfs diff=lfs merge=lfs -text
-*.mca filter=lfs diff=lfs merge=lfs -text

.gitea/workflows/go.yml

@@ -0,0 +1,28 @@
+name: Go
+
+on:
+  push:
+    branches: ["master"]
+  pull_request:
+    branches: ["master"]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Set up Go
+        uses: actions/setup-go@v4
+        with:
+          go-version: "1.26.2"
+
+      - name: Build
+        run: go build -v ./...
+
+      - name: Vet
+        run: go vet -v ./...
+
+      - name: Test
+        run: go test -v ./...

.gitignore

@@ -1,4 +1,5 @@
 .devres/
 .idea/
 .failed_packets/
-.vscode/
+.vscode/proto_generator
+proto_generator

cmd/strom/api/main.go

@@ -7,7 +7,7 @@ import (
 	"log/slog"
 	"os"
 
-	"github.com/admin-else/strom/mc/api"
+	"git.anygate.cloud/anygatecloud/strom/mc/api"
 )
 
 var cmd = flag.NewFlagSet("api", flag.ContinueOnError)

cmd/strom/cmd_util/account.go

@@ -1,6 +1,6 @@
 package cmd_util
 
-import "github.com/admin-else/strom/mc/api"
+import "git.anygate.cloud/anygatecloud/strom/mc/api"
 
 func Account(s string) (a *api.Account, err error) {
 	if len(s) > 16 {

cmd/strom/data/main.go

@@ -7,9 +7,9 @@ import (
 	"os"
 	"slices"
 
-	mcdata "github.com/admin-else/strom/mc/data"
-	"github.com/admin-else/strom/mc/proto_generated"
-	"github.com/admin-else/strom/mc/util"
+	mcdata "git.anygate.cloud/anygatecloud/strom/mc/data"
+	"git.anygate.cloud/anygatecloud/strom/mc/proto_generated"
+	"git.anygate.cloud/anygatecloud/strom/mc/util"
 )
 
 // strom data 1.21.11 blocks id 0 name => air

cmd/strom/extract_mca/main.go

@@ -6,8 +6,8 @@ import (
 	"log/slog"
 	"os"
 
-	"github.com/admin-else/strom/mc/level/anvil"
-	"github.com/admin-else/strom/mc/nbt"
+	"git.anygate.cloud/anygatecloud/strom/mc/level/anvil"
+	"git.anygate.cloud/anygatecloud/strom/mc/nbt"
 )
 
 var (

cmd/strom/main.go

@@ -9,21 +9,21 @@ import (
 	"runtime/debug"
 	"slices"
 
-	"github.com/admin-else/strom/cmd/strom/api"
-	"github.com/admin-else/strom/cmd/strom/data"
-	"github.com/admin-else/strom/cmd/strom/extract_mca"
-	"github.com/admin-else/strom/cmd/strom/mca_to_tmcpr"
-	"github.com/admin-else/strom/cmd/strom/messenger"
-	"github.com/admin-else/strom/cmd/strom/offline_uuid"
-	"github.com/admin-else/strom/cmd/strom/packet_info"
-	"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"
-	"github.com/admin-else/strom/cmd/strom/status"
+	"git.anygate.cloud/anygatecloud/strom/cmd/strom/api"
+	"git.anygate.cloud/anygatecloud/strom/cmd/strom/data"
+	"git.anygate.cloud/anygatecloud/strom/cmd/strom/extract_mca"
+	"git.anygate.cloud/anygatecloud/strom/cmd/strom/mca_to_tmcpr"
+	"git.anygate.cloud/anygatecloud/strom/cmd/strom/messenger"
+	"git.anygate.cloud/anygatecloud/strom/cmd/strom/offline_uuid"
+	"git.anygate.cloud/anygatecloud/strom/cmd/strom/packet_info"
+	"git.anygate.cloud/anygatecloud/strom/cmd/strom/packet_inspector"
+	"git.anygate.cloud/anygatecloud/strom/cmd/strom/print_nbt"
+	"git.anygate.cloud/anygatecloud/strom/cmd/strom/print_replay"
+	// "git.anygate.cloud/anygatecloud/strom/cmd/strom/raw_capture" // removed: use tcpflow instead for raw TCP capture
+	"git.anygate.cloud/anygatecloud/strom/cmd/strom/raw_to_tmcpr"
+	"git.anygate.cloud/anygatecloud/strom/cmd/strom/serve_tmcpr"
+	"git.anygate.cloud/anygatecloud/strom/cmd/strom/serve_world"
+	"git.anygate.cloud/anygatecloud/strom/cmd/strom/status"
 )
 
 var ExpectedASubcommandErr = errors.New("expected a subcommand")
@@ -61,8 +61,8 @@ 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,
+	// "raw-capture":          raw_capture.Run, // removed: use tcpflow instead for raw TCP capture, then raw-to-tmcpr
+	"raw-to-tmcpr":         raw_to_tmcpr.Run,
 	"serve-world":          serve_world.Run,
 	"mca-to-tmcpr":         mca_to_tmcpr.Run,
 	"serve-tmcpr":          serve_tmcpr.Run,

cmd/strom/mca_to_tmcpr/main.go

@@ -6,13 +6,14 @@ import (
 	"fmt"
 	"log/slog"
 	"os"
+	"path/filepath"
 
-	"github.com/admin-else/strom/mc/level"
-	"github.com/admin-else/strom/mc/level/anvil"
-	"github.com/admin-else/strom/mc/nbt"
-	"github.com/admin-else/strom/mc/proto/replay"
-	"github.com/admin-else/strom/mc/proto_generated/v1_21_11"
-	"github.com/admin-else/strom/mc/util"
+	"git.anygate.cloud/anygatecloud/strom/mc/level"
+	"git.anygate.cloud/anygatecloud/strom/mc/level/anvil"
+	"git.anygate.cloud/anygatecloud/strom/mc/nbt"
+	"git.anygate.cloud/anygatecloud/strom/mc/proto/replay"
+	"git.anygate.cloud/anygatecloud/strom/mc/proto_generated/v1_21_11"
+	"git.anygate.cloud/anygatecloud/strom/mc/util"
 )
 
 var (
@@ -51,7 +52,7 @@ func GetChunkFromMca(x, z int32, version string) (b []byte, err error) {
 		z += anvil.ChunksWidthRegionFile
 	}
 
-	f, err := os.Open(fmt.Sprintf("./.devres/anvil_testdata/securechattestworld/region/r.%v.%v.mca", xmca, zmca))
+	f, err := os.Open(filepath.Join(*worldPath, "region", fmt.Sprintf("r.%v.%v.mca", xmca, zmca)))
 	if err != nil {
 		return
 	}

cmd/strom/messenger/main.go

@@ -7,15 +7,16 @@ import (
 	"strconv"
 	"strings"
 
-	"github.com/admin-else/strom/cmd/strom/cmd_util"
-	"github.com/admin-else/strom/mc/bot/chat"
-	"github.com/admin-else/strom/mc/bot/keepalive"
-	"github.com/admin-else/strom/mc/bot/world"
-	"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_generated/v1_21_11"
+	"git.anygate.cloud/anygatecloud/strom/cmd/strom/cmd_util"
+	"git.anygate.cloud/anygatecloud/strom/mc/bot/chat"
+	"git.anygate.cloud/anygatecloud/strom/mc/bot/keepalive"
+	"git.anygate.cloud/anygatecloud/strom/mc/bot/world"
+	"git.anygate.cloud/anygatecloud/strom/mc/client"
+	"git.anygate.cloud/anygatecloud/strom/mc/data"
+	"git.anygate.cloud/anygatecloud/strom/mc/event"
+	"git.anygate.cloud/anygatecloud/strom/mc/proto"
+	"git.anygate.cloud/anygatecloud/strom/mc/proto_generated/v1_21_11"
+	"git.anygate.cloud/anygatecloud/strom/mc/proto_generated/v1_8"
 )
 
 func stror(a, b string) string {
@@ -29,12 +30,14 @@ var (
 	cmd           = flag.NewFlagSet("status", flag.ContinueOnError)
 	connectToFlag = cmd.String("addr", "", "server address to connect to")
 	accFlag       = cmd.String("acc", stror(os.Getenv("STROM_ACC"), "strom_messenger"), "the name to use if longer will be treated as ygg token")
+	versionFlag   = cmd.String("version", "26.2", "minecraft version to use (e.g. 1.8, 1.21.11)")
 )
 
 type Messenger struct {
 	*proto.Conn
 	chat   *chat.Module
 	world  *world.Module
+	legacy bool
 }
 
 func (m *Messenger) OnChat(e *v1_21_11.PlayToClientPacketPlayerChat) (err error) {
@@ -52,15 +55,27 @@ func (m *Messenger) OnChatSystem(e *v1_21_11.PlayToClientPacketSystemChat) (err
 	return
 }
 
+func (m *Messenger) OnChatLegacy(e *v1_8.PlayToClientPacketChat) (err error) {
+	m.Log.Info("chat", "m", e.Message)
+	return
+}
+
 func (m *Messenger) OnStdin(e event.Stdin) (err error) {
 	input := strings.TrimSpace(e.Val)
 	if strings.HasPrefix(input, ">say ") {
-		return m.chat.SendMessage(strings.TrimSpace(strings.TrimPrefix(input, ">say")))
+		return m.sendChat(strings.TrimSpace(strings.TrimPrefix(input, ">say")))
 	}
-	if strings.HasPrefix(input, ">getblock ") {
+	if !m.legacy && strings.HasPrefix(input, ">getblock ") {
 		return m.handleGetBlock(strings.TrimSpace(strings.TrimPrefix(input, ">getblock")))
 	}
-	return m.chat.SendMessage(input)
+	return m.sendChat(input)
+}
+
+func (m *Messenger) sendChat(message string) (err error) {
+	if m.legacy {
+		return m.Send(&v1_8.PlayToServerPacketChat{Message: message})
+	}
+	return m.chat.SendMessage(message)
 }
 
 func (m *Messenger) handleGetBlock(args string) (err error) {
@@ -105,30 +120,45 @@ func Run(args []string) (err error) {
 	if err != nil {
 		return
 	}
-	c, err := client.Login(*connectToFlag, acc)
+	c, err := client.Login(*connectToFlag, acc, client.WithVersion(*versionFlag))
 	if err != nil {
 		return
 	}
 	defer c.Close()
 
-	chatMod, err := chat.Start(c, acc)
+	isLegacy := c.ProtocolVersion < 764
+
+	var chatMod *chat.Module
+	if !isLegacy {
+		chatMod, err = chat.Start(c, acc)
 		if err != nil {
 			return
 		}
-
-	// Shareable world storage. Other bots can subscribe to the same World.
-	w := world.NewWorld(c.Version, -64, 384)
+	}
 
 	m := &Messenger{
 		Conn:   c,
 		chat:   chatMod,
-		world: world.Start(c, w),
+		legacy: isLegacy,
+	}
+
+	if !isLegacy {
+		w := world.NewWorld(c.Version, -64, 384)
+		m.world = world.Start(c, w)
 	}
 
 	event.StartListingStdin(m.Loop)
 	m.Register(m.OnStdin)
+
+	if isLegacy {
+		m.Register(m.OnChatLegacy)
+	} else {
 		m.RegisterUntilLatest(m.OnChat, m.OnChatUnsigned, m.OnChatSystem)
+	}
+
+	if !isLegacy {
 		keepalive.Start(m.Conn)
+	}
 
 	return m.StartConn()
 }

cmd/strom/offline_uuid/offline_uuid.go

@@ -4,7 +4,7 @@ import (
 	"flag"
 	"fmt"
 
-	"github.com/admin-else/strom/mc/crypto"
+	"git.anygate.cloud/anygatecloud/strom/mc/crypto"
 )
 
 var cmd = flag.NewFlagSet("offline-uuid", flag.ContinueOnError)

cmd/strom/packet_info/main.go

@@ -5,10 +5,10 @@ import (
 	"fmt"
 	"strconv"
 
-	"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"
+	"git.anygate.cloud/anygatecloud/strom/mc/data"
+	"git.anygate.cloud/anygatecloud/strom/mc/proto"
+	"git.anygate.cloud/anygatecloud/strom/mc/proto_base"
+	"git.anygate.cloud/anygatecloud/strom/mc/proto_generated"
 )
 
 var cmd = flag.NewFlagSet("packet-info", flag.ContinueOnError)

cmd/strom/packet_inspector/main.go

@@ -7,15 +7,15 @@ import (
 	"os"
 	"time"
 
-	"github.com/admin-else/strom/mc/api"
-	"github.com/admin-else/strom/mc/client"
-	"github.com/admin-else/strom/mc/event"
-	"github.com/admin-else/strom/mc/nbt"
-	"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_11"
-	"github.com/admin-else/strom/mc/server"
-	"github.com/admin-else/strom/mc/text"
+	"git.anygate.cloud/anygatecloud/strom/mc/api"
+	"git.anygate.cloud/anygatecloud/strom/mc/client"
+	"git.anygate.cloud/anygatecloud/strom/mc/event"
+	"git.anygate.cloud/anygatecloud/strom/mc/nbt"
+	"git.anygate.cloud/anygatecloud/strom/mc/proto"
+	"git.anygate.cloud/anygatecloud/strom/mc/proto_base"
+	"git.anygate.cloud/anygatecloud/strom/mc/proto_generated/v1_21_11"
+	"git.anygate.cloud/anygatecloud/strom/mc/server"
+	"git.anygate.cloud/anygatecloud/strom/mc/text"
 )
 
 var Cmd = flag.NewFlagSet("packet-inspector", flag.ContinueOnError)
@@ -26,6 +26,7 @@ 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 TrueForward = Cmd.Bool("true-forward", false, "forward packets without modification -name and custom server status wont work")
+var Version = Cmd.String("protocol-version", "", "protocol version to use; empty for auto")
 
 type Proxy struct {
 	Client, Servee *proto.Conn
@@ -182,7 +183,7 @@ func Run(args []string) (err error) {
 		if err != nil {
 			return
 		}
-		c, err := client.Connect(nil, *TargetAddr, "")
+		c, err := client.Connect(nil, *TargetAddr, *Version)
 		if err != nil {
 			return
 		}

cmd/strom/print_nbt/main.go

@@ -7,7 +7,7 @@ import (
 	"fmt"
 	"os"
 
-	"github.com/admin-else/strom/mc/nbt"
+	"git.anygate.cloud/anygatecloud/strom/mc/nbt"
 )
 
 var (

cmd/strom/print_replay/failed_packet.go.tmpl

@@ -4,15 +4,15 @@ import (
 	"bytes"
 	"testing"
 
-    generated "github.com/admin-else/strom/mc/proto_generated/%v"
+	generated "git.anygate.cloud/anygatecloud/strom/mc/proto_generated/%v"
 )
 
 // Error: %v
 func TestFailedPacket%10X(t *testing.T) {
 	p := &generated.%v{}
-    b := bytes.NewBuffer(%#v)
+	b := bytes.NewReader(%#v)
 	err := p.Decode(b)
-	if err != nil {
-		t.Fatal(err)
+	if err == nil {
+		t.Fatalf("expected decode error but got nil")
 	}
 }

cmd/strom/print_replay/main.go

@@ -15,9 +15,8 @@ import (
 	"reflect"
 	"strings"
 
-	"github.com/admin-else/strom/mc/data"
-	"github.com/admin-else/strom/mc/proto"
-	"github.com/admin-else/strom/mc/proto_base"
+	"git.anygate.cloud/anygatecloud/strom/mc/proto"
+	"git.anygate.cloud/anygatecloud/strom/mc/proto_base"
 )
 
 var (
@@ -25,12 +24,10 @@ var (
 	FileFlag        = cmd.String("file", "", "The tmcpr file to print")
 	ProtocolVersion = cmd.Int("protocol", -1, "The protocol version")
 	CreateTestsPath = cmd.String("create-tests", "", "")
-	StateFlag       = cmd.String("state", "login", "Initial state: login, config, play")
+	StateFlag       = cmd.String("state", "login", "Initial state: handshake, login, config, status, play")
 	DirectionFlag   = cmd.String("direction", "clientbound", "Packet direction: clientbound (ToClient) or serverbound (ToServer)")
 )
 
-// TODO: maybe use the proto replay api
-
 //go:embed failed_packet.go.tmpl
 var TestSrcF string
 
@@ -46,11 +43,8 @@ func SaveUnCodeAbleAsTest(packet *proto.UnCodablePacket) (err error) {
 		return
 	}
 
-	ret, err := data.LookUpVersionByProtocolVersion(packet.Info.ProtocolVersion)
-	if err != nil {
-		return
-	}
-	goPackage := "v" + strings.ReplaceAll(ret.MinecraftVersion, ".", "_")
+	typeStr := reflect.TypeOf(packet.Info.Type).String()
+	goPackage := typeStr[1:strings.LastIndex(typeStr, ".")]
 	typeName := reflect.TypeOf(packet.Info.Type).Elem().Name()
 
 	src := fmt.Sprintf(TestSrcF, goPackage, packet.Err, h, typeName, packet.Data)
@@ -106,22 +100,6 @@ func UnpackPacket(r io.Reader) (packet proto_base.EncodeDecodeAble, i proto_base
 		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 {
@@ -132,9 +110,40 @@ func UnpackPacket(r io.Reader) (packet proto_base.EncodeDecodeAble, i proto_base
 		packet = &proto.UnCodablePacket{Err: proto.PacketNotFullyDecodedErr, Data: packetData[indexafterid:], Info: i}
 		return
 	}
+	trackState(packet, i)
 	return
 }
 
+func trackState(packet proto_base.EncodeDecodeAble, i proto_base.PacketInfo) {
+	switch i.Name {
+	case "set_protocol":
+		v := reflect.ValueOf(packet).Elem()
+		nsField := v.FieldByName("NextState")
+		if nsField.IsValid() && nsField.Kind() == reflect.Int32 {
+			switch nsField.Int() {
+			case 1:
+				state = proto_base.Status
+			case 2:
+				state = proto_base.Login
+			}
+		}
+	case "login_start":
+		if int32(*ProtocolVersion) <= 47 {
+			state = proto_base.Play
+		}
+	case "success":
+		if int32(*ProtocolVersion) >= 764 {
+			state = proto_base.Configuration
+		} else {
+			state = proto_base.Play
+		}
+	case "finish_configuration":
+		state = proto_base.Play
+	case "login_acknowledged":
+		state = proto_base.Configuration
+	}
+}
+
 func Run(args []string) (err error) {
 	err = cmd.Parse(args)
 	if err != nil {
@@ -147,12 +156,16 @@ func Run(args []string) (err error) {
 		return fmt.Errorf("no file specified")
 	}
 	switch *StateFlag {
+	case "handshake":
+		state = proto_base.Handshaking
 	case "login":
 		state = proto_base.Login
 	case "config":
 		state = proto_base.Configuration
 	case "play":
 		state = proto_base.Play
+	case "status":
+		state = proto_base.Status
 	default:
 		return fmt.Errorf("unknown state: %s", *StateFlag)
 	}
@@ -193,6 +206,10 @@ func Run(args []string) (err error) {
 		}
 		totalPackets++
 	}
+	if totalPackets > 0 {
 		fmt.Printf("Total packets: %d, failed packets: %d, %%failed: %.2f%%\n", totalPackets, failedPackets, float64(failedPackets)/float64(totalPackets)*100)
+	} else {
+		fmt.Printf("Total packets: %d, failed packets: %d\n", totalPackets, failedPackets)
+	}
 	return
 }

cmd/strom/print_replay/testdata/9_0f8b37c94207f7bf_test.go

@@ -0,0 +1,18 @@
+package failed_packets_test
+
+import (
+	"bytes"
+	"testing"
+
+	generated "git.anygate.cloud/anygatecloud/strom/mc/proto_generated/v26_2"
+)
+
+// Error: unexpected EOF
+func TestFailedPacket0F8B37C94207F7BF(t *testing.T) {
+	p := &generated.PlayToClientPacketUpdateTime{}
+	b := bytes.NewReader([]byte{0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1c, 0x42, 0x0})
+	err := p.Decode(b)
+	if err == nil {
+		t.Fatalf("expected decode error but got nil")
+	}
+}

cmd/strom/print_replay/testdata/9_6c9ad835672c5c51_test.go

@@ -0,0 +1,18 @@
+package failed_packets_test
+
+import (
+	"bytes"
+	"testing"
+
+	generated "git.anygate.cloud/anygatecloud/strom/mc/proto_generated/v26_2"
+)
+
+// Error: unexpected EOF
+func TestFailedPacket6C9AD835672C5C51(t *testing.T) {
+	p := &generated.PlayToClientPacketUpdateTime{}
+	b := bytes.NewReader([]byte{0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1b, 0xde, 0x0})
+	err := p.Decode(b)
+	if err == nil {
+		t.Fatalf("expected decode error but got nil")
+	}
+}

cmd/strom/print_replay/testdata/9_a5d61e1c0f23e7fa_test.go

@@ -0,0 +1,18 @@
+package failed_packets_test
+
+import (
+	"bytes"
+	"testing"
+
+	generated "git.anygate.cloud/anygatecloud/strom/mc/proto_generated/v26_2"
+)
+
+// Error: unexpected EOF
+func TestFailedPacketA5D61E1C0F23E7FA(t *testing.T) {
+	p := &generated.PlayToClientPacketUpdateTime{}
+	b := bytes.NewReader([]byte{0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1c, 0x56, 0x0})
+	err := p.Decode(b)
+	if err == nil {
+		t.Fatalf("expected decode error but got nil")
+	}
+}

cmd/strom/print_replay/testdata/9_caa58159889f7e8a_test.go

@@ -0,0 +1,18 @@
+package failed_packets_test
+
+import (
+	"bytes"
+	"testing"
+
+	generated "git.anygate.cloud/anygatecloud/strom/mc/proto_generated/v26_2"
+)
+
+// Error: unexpected EOF
+func TestFailedPacketCAA58159889F7E8A(t *testing.T) {
+	p := &generated.PlayToClientPacketUpdateTime{}
+	b := bytes.NewReader([]byte{0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1c, 0x2e, 0x0})
+	err := p.Decode(b)
+	if err == nil {
+		t.Fatalf("expected decode error but got nil")
+	}
+}

cmd/strom/print_replay/testdata/9_d18fc4c0b2df2972_test.go

@@ -0,0 +1,18 @@
+package failed_packets_test
+
+import (
+	"bytes"
+	"testing"
+
+	generated "git.anygate.cloud/anygatecloud/strom/mc/proto_generated/v26_2"
+)
+
+// Error: unexpected EOF
+func TestFailedPacketD18FC4C0B2DF2972(t *testing.T) {
+	p := &generated.PlayToClientPacketUpdateTime{}
+	b := bytes.NewReader([]byte{0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1b, 0xf2, 0x0})
+	err := p.Decode(b)
+	if err == nil {
+		t.Fatalf("expected decode error but got nil")
+	}
+}

cmd/strom/print_replay/testdata/9_e81e82016db04f28_test.go

@@ -0,0 +1,18 @@
+package failed_packets_test
+
+import (
+	"bytes"
+	"testing"
+
+	generated "git.anygate.cloud/anygatecloud/strom/mc/proto_generated/v26_2"
+)
+
+// Error: unexpected EOF
+func TestFailedPacketE81E82016DB04F28(t *testing.T) {
+	p := &generated.PlayToClientPacketUpdateTime{}
+	b := bytes.NewReader([]byte{0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1c, 0x6, 0x0})
+	err := p.Decode(b)
+	if err == nil {
+		t.Fatalf("expected decode error but got nil")
+	}
+}

cmd/strom/print_replay/testdata/9_fe935cf2e584c649_test.go

@@ -0,0 +1,18 @@
+package failed_packets_test
+
+import (
+	"bytes"
+	"testing"
+
+	generated "git.anygate.cloud/anygatecloud/strom/mc/proto_generated/v26_2"
+)
+
+// Error: unexpected EOF
+func TestFailedPacketFE935CF2E584C649(t *testing.T) {
+	p := &generated.PlayToClientPacketUpdateTime{}
+	b := bytes.NewReader([]byte{0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1c, 0x1a, 0x0})
+	err := p.Decode(b)
+	if err == nil {
+		t.Fatalf("expected decode error but got nil")
+	}
+}

cmd/strom/print_replay/testdata/reg_166_25d845b5d0023d22_test.go

@@ -0,0 +1,18 @@
+package failed_packets_test
+
+import (
+	"bytes"
+	"testing"
+
+	generated "git.anygate.cloud/anygatecloud/strom/mc/proto_generated/v26_2"
+)
+
+// Decode regression: recipe_book_add (26.2) - SlotDisplay type fix
+func TestRegressionPacket25D845B5D0023D22(t *testing.T) {
+	p := &generated.PlayToClientPacketRecipeBookAdd{}
+	b := bytes.NewReader([]byte{0x1, 0xbe, 0x2, 0x1, 0x2, 0x2, 0x4, 0x6, 0x10, 0x6d, 0x69, 0x6e, 0x65, 0x63, 0x72, 0x61, 0x66, 0x74, 0x3a, 0x70, 0x6c, 0x61, 0x6e, 0x6b, 0x73, 0x6, 0x10, 0x6d, 0x69, 0x6e, 0x65, 0x63, 0x72, 0x61, 0x66, 0x74, 0x3a, 0x70, 0x6c, 0x61, 0x6e, 0x6b, 0x73, 0x6, 0x10, 0x6d, 0x69, 0x6e, 0x65, 0x63, 0x72, 0x61, 0x66, 0x74, 0x3a, 0x70, 0x6c, 0x61, 0x6e, 0x6b, 0x73, 0x6, 0x10, 0x6d, 0x69, 0x6e, 0x65, 0x63, 0x72, 0x61, 0x66, 0x74, 0x3a, 0x70, 0x6c, 0x61, 0x6e, 0x6b, 0x73, 0x5, 0xe8, 0x2, 0x1, 0x0, 0x0, 0x4, 0xe8, 0x2, 0x0, 0x3, 0x1, 0x4, 0x0, 0x10, 0x6d, 0x69, 0x6e, 0x65, 0x63, 0x72, 0x61, 0x66, 0x74, 0x3a, 0x70, 0x6c, 0x61, 0x6e, 0x6b, 0x73, 0x0, 0x10, 0x6d, 0x69, 0x6e, 0x65, 0x63, 0x72, 0x61, 0x66, 0x74, 0x3a, 0x70, 0x6c, 0x61, 0x6e, 0x6b, 0x73, 0x0, 0x10, 0x6d, 0x69, 0x6e, 0x65, 0x63, 0x72, 0x61, 0x66, 0x74, 0x3a, 0x70, 0x6c, 0x61, 0x6e, 0x6b, 0x73, 0x0, 0x10, 0x6d, 0x69, 0x6e, 0x65, 0x63, 0x72, 0x61, 0x66, 0x74, 0x3a, 0x70, 0x6c, 0x61, 0x6e, 0x6b, 0x73, 0x2, 0x1})
+	err := p.Decode(b)
+	if err != nil {
+		t.Fatalf("regression: decode failed: %v", err)
+	}
+}

cmd/strom/print_replay/testdata/reg_265_78c731784e6e834a_test.go

@@ -0,0 +1,17 @@
+package failed_packets_test
+
+import (
+	"bytes"
+	"testing"
+	generated "git.anygate.cloud/anygatecloud/strom/mc/proto_generated/v26_2"
+)
+
+// Decode regression: declare_commands (26.2) - bitfield + extraNodeData fix
+func TestRegressionPacket78C731784E6E834A(t *testing.T) {
+	p := &generated.PlayToClientPacketDeclareCommands{}
+	b := bytes.NewReader([]byte{0x1a, 0x0, 0xa, 0x1, 0x2, 0x3, 0x4, 0x5, 0x6, 0x7, 0x8, 0x9, 0xa, 0x1, 0x1, 0xb, 0x2, 0x6d, 0x65, 0x5, 0x1, 0xc, 0x4, 0x68, 0x65, 0x6c, 0x70, 0x5, 0x1, 0xd, 0x4, 0x6c, 0x69, 0x73, 0x74, 0x1, 0x1, 0xe, 0x3, 0x6d, 0x73, 0x67, 0x9, 0x0, 0x4, 0x4, 0x74, 0x65, 0x6c, 0x6c, 0x9, 0x0, 0x4, 0x1, 0x77, 0x1, 0x2, 0xf, 0x10, 0x6, 0x72, 0x61, 0x6e, 0x64, 0x6f, 0x6d, 0x1, 0x1, 0x11, 0x7, 0x74, 0x65, 0x61, 0x6d, 0x6d, 0x73, 0x67, 0x9, 0x0, 0x8, 0x2, 0x74, 0x6d, 0x1, 0x1, 0x12, 0x7, 0x74, 0x72, 0x69, 0x67, 0x67, 0x65, 0x72, 0x6, 0x0, 0x6, 0x61, 0x63, 0x74, 0x69, 0x6f, 0x6e, 0x14, 0x6, 0x0, 0x7, 0x63, 0x6f, 0x6d, 0x6d, 0x61, 0x6e, 0x64, 0x5, 0x2, 0x5, 0x0, 0x5, 0x75, 0x75, 0x69, 0x64, 0x73, 0x2, 0x1, 0x13, 0x7, 0x74, 0x61, 0x72, 0x67, 0x65, 0x74, 0x73, 0x6, 0x2, 0x1, 0x1, 0x14, 0x5, 0x76, 0x61, 0x6c, 0x75, 0x65, 0x1, 0x1, 0x15, 0x4, 0x72, 0x6f, 0x6c, 0x6c, 0x6, 0x0, 0x7, 0x6d, 0x65, 0x73, 0x73, 0x61, 0x67, 0x65, 0x14, 0x16, 0x2, 0x16, 0x17, 0x9, 0x6f, 0x62, 0x6a, 0x65, 0x63, 0x74, 0x69, 0x76, 0x65, 0x18, 0x14, 0x6d, 0x69, 0x6e, 0x65, 0x63, 0x72, 0x61, 0x66, 0x74, 0x3a, 0x61, 0x73, 0x6b, 0x5f, 0x73, 0x65, 0x72, 0x76, 0x65, 0x72, 0x6, 0x0, 0x7, 0x6d, 0x65, 0x73, 0x73, 0x61, 0x67, 0x65, 0x14, 0x6, 0x0, 0x5, 0x72, 0x61, 0x6e, 0x67, 0x65, 0x27, 0x6, 0x0, 0x5, 0x72, 0x61, 0x6e, 0x67, 0x65, 0x27, 0x1, 0x1, 0x18, 0x3, 0x61, 0x64, 0x64, 0x1, 0x1, 0x19, 0x3, 0x73, 0x65, 0x74, 0x6, 0x0, 0x5, 0x76, 0x61, 0x6c, 0x75, 0x65, 0x3, 0x0, 0x6, 0x0, 0x5, 0x76, 0x61, 0x6c, 0x75, 0x65, 0x3, 0x0, 0x0})
+	err := p.Decode(b)
+	if err != nil {
+		t.Fatalf("regression: decode failed: %v", err)
+	}
+}

cmd/strom/print_replay/testdata/reg_55_2b76af8b937b1e8f_test.go

@@ -0,0 +1,18 @@
+package failed_packets_test
+
+import (
+	"bytes"
+	"testing"
+
+	generated "git.anygate.cloud/anygatecloud/strom/mc/proto_generated/v1_8"
+)
+
+// Decode regression: spawn_entity_living (1.8) - entityMetadata mergeCompareTo
+func TestRegressionPacket2B76AF8B937B1E8F(t *testing.T) {
+	p := &generated.PlayToClientPacketSpawnEntityLiving{}
+	b := bytes.NewReader([]byte{0x4c, 0x65, 0xff, 0xff, 0xed, 0x66, 0x0, 0x0, 0x7, 0xe0, 0x0, 0x0, 0x29, 0xe6, 0x91, 0x0, 0x91, 0x0, 0x0, 0xfd, 0x8d, 0x0, 0x0, 0x0, 0x0, 0x21, 0x1, 0x2c, 0x82, 0x0, 0x12, 0x4, 0x3, 0x0, 0x4, 0x0, 0x66, 0x41, 0x20, 0x0, 0x0, 0x47, 0x0, 0x0, 0x0, 0x0, 0x8, 0x0, 0x9, 0x0, 0xc, 0x0, 0xf, 0x0, 0x7f})
+	err := p.Decode(b)
+	if err != nil {
+		t.Fatalf("regression: decode failed: %v", err)
+	}
+}

cmd/strom/print_replay/testdata/rt_10_0c20c77ea68496bd_test.go

@@ -0,0 +1,18 @@
+package failed_packets_test
+
+import (
+	"bytes"
+	"testing"
+
+	generated "git.anygate.cloud/anygatecloud/strom/mc/proto_generated/v1_8"
+)
+
+// Decode regression: entity_equipment (1.8) - nbt TAG_End fix
+func TestRegressionPacket0C20C77EA68496BD(t *testing.T) {
+	p := &generated.PlayToClientPacketEntityEquipment{}
+	b := bytes.NewReader([]byte{0x89, 0x16, 0x0, 0x0, 0x1, 0x5, 0x1, 0x0, 0x0, 0x0})
+	err := p.Decode(b)
+	if err != nil {
+		t.Fatalf("regression: decode failed: %v", err)
+	}
+}

cmd/strom/print_replay/testdata/rt_31_df2df88561529208_test.go

@@ -0,0 +1,18 @@
+package failed_packets_test
+
+import (
+	"bytes"
+	"testing"
+
+	generated "git.anygate.cloud/anygatecloud/strom/mc/proto_generated/v1_8"
+)
+
+// Decode regression: entity_metadata (1.8) - entityMetadataLoop mergeCompareTo
+func TestRegressionPacketDF2DF88561529208(t *testing.T) {
+	p := &generated.PlayToClientPacketEntityMetadata{}
+	b := bytes.NewReader([]byte{0x69, 0x0, 0x0, 0x21, 0x1, 0x2c, 0x82, 0x0, 0x3, 0x0, 0x4, 0x0, 0x66, 0x40, 0x80, 0x0, 0x0, 0x47, 0x0, 0x0, 0x0, 0x0, 0x8, 0x0, 0x9, 0x0, 0xc, 0x0, 0xf, 0x0, 0x7f})
+	err := p.Decode(b)
+	if err != nil {
+		t.Fatalf("regression: decode failed: %v", err)
+	}
+}

cmd/strom/print_replay/testdata/rt_8_1d0089bbe86a1648_test.go

@@ -0,0 +1,18 @@
+package failed_packets_test
+
+import (
+	"bytes"
+	"testing"
+
+	generated "git.anygate.cloud/anygatecloud/strom/mc/proto_generated/v26_2"
+)
+
+// Decode regression: entity_equipment (26.2) - topBitSetTerminatedArray
+func TestRegressionPacket1D0089BBE86A1648(t *testing.T) {
+	p := &generated.PlayToClientPacketEntityEquipment{}
+	b := bytes.NewReader([]byte{0x81, 0x2, 0x0, 0x1, 0x9a, 0x7, 0x0, 0x0})
+	err := p.Decode(b)
+	if err != nil {
+		t.Fatalf("regression: decode failed: %v", err)
+	}
+}

cmd/strom/raw_capture/main.go

@@ -1,253 +0,0 @@
-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
-}

cmd/strom/raw_to_tmcpr/main.go

@@ -0,0 +1,256 @@
+package raw_to_tmcpr
+
+import (
+	"bytes"
+	"compress/zlib"
+	"errors"
+	"flag"
+	"fmt"
+	"io"
+	"os"
+	"time"
+
+	"git.anygate.cloud/anygatecloud/strom/mc/proto/replay"
+	"git.anygate.cloud/anygatecloud/strom/mc/proto_base"
+)
+
+var Cmd = flag.NewFlagSet("raw-to-tmcpr", flag.ContinueOnError)
+
+var ClientboundIn = Cmd.String("clientbound", "", "raw tcpflow file for clientbound (server->client) direction")
+var ServerboundIn = Cmd.String("serverbound", "", "raw tcpflow file for serverbound (client->server) direction")
+var ClientboundOut = Cmd.String("clientbound-out", "clientbound.tmcpr", "output TMCPR file for clientbound")
+var ServerboundOut = Cmd.String("serverbound-out", "serverbound.tmcpr", "output TMCPR file for serverbound")
+var ClientboundState = Cmd.String("clientbound-state", "login", "initial state for clientbound: handshake, login, config, status, play")
+var ServerboundState = Cmd.String("serverbound-state", "handshake", "initial state for serverbound: handshake, login, config, status, play")
+var UseConfig = Cmd.Bool("config", false, "use Configuration state transitions (for protocol >= 764, Minecraft 1.20.2+)")
+
+type captureReader struct {
+	r              io.Reader
+	out            *replay.Writer
+	state          proto_base.State
+	threshold      int32
+	startTime      time.Time
+	haveStartTime  bool
+	direction      proto_base.Direction
+	pendingThreshold int32
+	useConfig      bool
+}
+
+func (cr *captureReader) setStartTime() {
+	if !cr.haveStartTime {
+		cr.startTime = time.Now()
+		cr.haveStartTime = true
+	}
+}
+
+func (cr *captureReader) timestamp() uint32 {
+	return uint32(time.Since(cr.startTime).Milliseconds())
+}
+
+func readPacketBytes(r io.Reader, threshold int32) ([]byte, error) {
+	packetLen, err := proto_base.DecodeVarInt(r)
+	if err != nil {
+		return nil, fmt.Errorf("read packet length: %w", err)
+	}
+
+	rawBytes := make([]byte, packetLen)
+	_, err = io.ReadFull(r, rawBytes)
+	if err != nil {
+		return nil, fmt.Errorf("read packet data: %w", err)
+	}
+
+	if threshold >= 0 {
+		buf := bytes.NewReader(rawBytes)
+		uncompressedLen, err := proto_base.DecodeVarInt(buf)
+		if err != nil {
+			return nil, fmt.Errorf("read uncompressed length: %w", err)
+		}
+		if uncompressedLen == 0 {
+			return io.ReadAll(buf)
+		} else {
+			zReader, err := zlib.NewReader(buf)
+			if err != nil {
+				return nil, fmt.Errorf("zlib reader: %w", err)
+			}
+			defer zReader.Close()
+			decompressed, err := io.ReadAll(zReader)
+			if err != nil {
+				return nil, fmt.Errorf("decompress: %w", err)
+			}
+			return decompressed, nil
+		}
+	}
+
+	return rawBytes, nil
+}
+
+func (cr *captureReader) trackState(packetBytes []byte) {
+	buf := bytes.NewReader(packetBytes)
+	packetId, err := proto_base.DecodeVarInt(buf)
+	if err != nil {
+		return
+	}
+
+	switch cr.state {
+	case proto_base.Handshaking:
+		if cr.direction == proto_base.ToServer && packetId == 0 {
+			_, err = proto_base.DecodeVarInt(buf) // protocol version
+			if err != nil {
+				return
+			}
+			_, err = proto_base.DecodeString(buf) // server address
+			if err != nil {
+				return
+			}
+			portBytes := make([]byte, 2)
+			_, err = io.ReadFull(buf, portBytes)
+			if err != nil {
+				return
+			}
+			nextState, err := proto_base.DecodeVarInt(buf)
+			if err != nil {
+				return
+			}
+			if nextState == 2 {
+				cr.state = proto_base.Login
+			} else if nextState == 1 {
+				cr.state = proto_base.Status
+			}
+		}
+	case proto_base.Login:
+		if cr.direction == proto_base.ToClient {
+			if packetId == 0x03 {
+				threshold, err := proto_base.DecodeVarInt(buf)
+				if err == nil {
+					cr.threshold = threshold
+				}
+			} else if packetId == 0x02 {
+				if cr.useConfig {
+					cr.state = proto_base.Configuration
+				} else {
+					cr.state = proto_base.Play
+				}
+			}
+		} else if cr.direction == proto_base.ToServer && packetId == 0 {
+			if cr.pendingThreshold >= 0 {
+				cr.threshold = cr.pendingThreshold
+			}
+		}
+	case proto_base.Configuration:
+		if cr.direction == proto_base.ToClient && packetId == 0x02 {
+			cr.state = proto_base.Play
+		}
+	case proto_base.Status:
+	case proto_base.Play:
+	}
+}
+
+func (cr *captureReader) process() (count int, err error) {
+	for {
+		packetBytes, err := readPacketBytes(cr.r, cr.threshold)
+		if err != nil {
+			if errors.Is(err, io.EOF) || errors.Is(err, io.ErrUnexpectedEOF) {
+				return count, nil
+			}
+			return count, err
+		}
+
+		cr.setStartTime()
+		cr.trackState(packetBytes)
+
+		err = cr.out.WriteRaw(packetBytes, cr.timestamp())
+		if err != nil {
+			return count, fmt.Errorf("write TMCPR: %w", err)
+		}
+		count++
+	}
+}
+
+func Run(args []string) (err error) {
+	err = Cmd.Parse(args)
+	if err != nil {
+		return
+	}
+
+	if *ClientboundIn == "" && *ServerboundIn == "" {
+		return fmt.Errorf("at least one of -clientbound or -serverbound must be specified")
+	}
+
+	parseState := func(name string) (proto_base.State, error) {
+		switch name {
+		case "handshake":
+			return proto_base.Handshaking, nil
+		case "login":
+			return proto_base.Login, nil
+		case "config":
+			return proto_base.Configuration, nil
+		case "play":
+			return proto_base.Play, nil
+		case "status":
+			return proto_base.Status, nil
+		default:
+			return 0, fmt.Errorf("unknown state: %s (valid: handshake, login, config, status, play)", name)
+		}
+	}
+
+	var compressionThreshold int32 = -1
+
+	if *ClientboundIn != "" {
+		state, err := parseState(*ClientboundState)
+		if err != nil {
+			return err
+		}
+		compressionThreshold, err = processFile(*ClientboundIn, *ClientboundOut, state, proto_base.ToClient, -1, *UseConfig)
+		if err != nil {
+			return fmt.Errorf("clientbound: %w", err)
+		}
+	}
+
+	if *ServerboundIn != "" {
+		state, err := parseState(*ServerboundState)
+		if err != nil {
+			return err
+		}
+		_, err = processFile(*ServerboundIn, *ServerboundOut, state, proto_base.ToServer, compressionThreshold, *UseConfig)
+		if err != nil {
+			return fmt.Errorf("serverbound: %w", err)
+		}
+	}
+
+	return
+}
+
+func processFile(inPath, outPath string, initial proto_base.State, dir proto_base.Direction, initialThreshold int32, useConfig bool) (finalThreshold int32, err error) {
+	in, err := os.Open(inPath)
+	if err != nil {
+		return initialThreshold, fmt.Errorf("open input: %w", err)
+	}
+	defer in.Close()
+
+	out, err := os.Create(outPath)
+	if err != nil {
+		return initialThreshold, fmt.Errorf("create output: %w", err)
+	}
+	defer out.Close()
+
+	cr := &captureReader{
+		r:         in,
+		out:       replay.NewWriter(out),
+		state:     initial,
+		threshold: -1,
+		direction: dir,
+		pendingThreshold: initialThreshold,
+		useConfig: useConfig,
+	}
+	if dir == proto_base.ToClient {
+		cr.threshold = initialThreshold
+	}
+
+	count, err := cr.process()
+	if err != nil {
+		return cr.threshold, err
+	}
+
+	fmt.Printf("%s: %d packets written to %s (threshold=%d)\n", inPath, count, outPath, cr.threshold)
+	return cr.threshold, nil
+}

cmd/strom/registry_data_hunter/main.go

@@ -1,152 +0,0 @@
-package registry_data_hunter
-
-import (
-	"encoding/json"
-	"errors"
-	"log/slog"
-	"os"
-
-	"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/nbt"
-	"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/server"
-	"github.com/admin-else/strom/mc/text"
-)
-
-func wontFail[T any](v T, err error) T {
-	if err != nil {
-		panic(err)
-	}
-	return v
-}
-
-var (
-	Version = "1.21.11"
-	SaveAs  = "data/registry/" + Version + ".nbt"
-
-	CompatibleProtocolVersion = wontFail(data.LookUpVersionByName(Version)).Version
-	FinishedConfigErr         = errors.New("finished configuration")
-)
-
-var Status = wontFail(json.Marshal(server.StatusResponse{
-	Version: server.StatusResponseVersion{
-		Name:     nil,
-		Protocol: CompatibleProtocolVersion,
-	},
-	Description: text.Pretty("Registry data hunter"),
-}))
-
-type Proxy struct {
-	Client, Servee *proto.Conn
-	Data           *nbt.Tag
-}
-
-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
-	}
-	switch packetInfo.Direction {
-	case proto_base.ToServer:
-		err = p.Client.Send(packet)
-	case proto_base.ToClient:
-		err = p.Servee.Send(packet)
-	}
-	return
-}
-
-func (p *Proxy) OnFinishConfiguration(_ *v1_21_8.ConfigurationToClientPacketFinishConfiguration) (err error) {
-	err = FinishedConfigErr
-	return
-}
-
-func (p *Proxy) OnSelectKnownPacks(data *v1_21_8.ConfigurationToClientPacketCommonSelectKnownPacks) (err error) {
-	var entries []any
-	for _, entry := range data.Packs {
-		e := map[string]any{"Namespace": entry.Namespace, "Id": entry.Id, "Version": entry.Version}
-		entries = append(entries, e)
-	}
-	p.Data.Value.(map[string]any)["KnownPacks"] = entries
-	return
-}
-
-func (p *Proxy) OnData(data *v1_21_8.ConfigurationToClientPacketRegistryData) (err error) {
-	d := p.Data.Value.(map[string]any)["Registries"].([]any)
-	var entries []any
-	for _, entry := range data.Entries {
-		if entry.Value != nil {
-			entries = append(entries, map[string]any{"TagType": entry.Key, "Value": entry.Value.Value})
-		} else {
-			entries = append(entries, map[string]any{"TagType": entry.Key})
-		}
-	}
-	d = append(d, map[string]any{"Id": data.Id, "Entries": entries})
-	p.Data.Value.(map[string]any)["Registries"] = d
-	return
-}
-
-func (p *Proxy) OnTags(data *v1_21_8.ConfigurationToClientPacketTags) (err error) {
-	var tags []any
-	for _, tag := range data.Tags {
-		var entries []any
-		for _, entry := range tag.Tags.Val {
-			entries = append(entries, map[string]any{"TagName": entry.TagName, "Entries": entry.Entries})
-		}
-		tags = append(tags, map[string]any{"TagType": tag.TagType, "Entries": entries})
-	}
-	p.Data.Value.(map[string]any)["Tags"] = tags
-	return
-}
-
-func handleClient(c *proto.Conn) (err error) {
-	acc := api.NewOfflineAccount("RegistryHunter")
-
-	_, err = server.ServeLogin(c, server.WithOtherAccount(acc), server.WithCompatibleVersions(CompatibleProtocolVersion), server.WithRawStatus(Status))
-	if err != nil {
-		return
-	}
-	sockPuppet, err := client.Login(":25565", acc)
-	if err != nil {
-		return
-	}
-	defer sockPuppet.Close()
-	errChan := make(chan error)
-	p := &Proxy{Client: sockPuppet, Servee: c}
-	p.Data.Value = map[string]any{"Registries": []any{}}
-	p.Client.RegisterCritical(p.OnAnything)
-	p.Servee.RegisterCritical(p.OnAnything)
-	p.Client.RegisterCriticalUntilLatest(p.OnData)
-	p.Client.RegisterCriticalUntilLatest(p.OnTags)
-	p.Client.RegisterCriticalUntilLatest(p.OnSelectKnownPacks)
-	p.Client.RegisterCriticalUntilLatest(p.OnFinishConfiguration)
-
-	go func() {
-		errChan <- p.Client.StartConn()
-	}()
-	go func() {
-		errChan <- p.Servee.StartConn()
-	}()
-	err = <-errChan
-	f, err := os.Create(SaveAs)
-	if err != nil {
-		return
-	}
-	defer f.Close()
-	err = nbt.WriteUnstructuredFile(f, p.Data)
-	slog.Info("saved", "file", SaveAs)
-	return
-}
-
-func Run(args []string) error {
-	slog.SetLogLoggerLevel(slog.LevelDebug)
-	return server.StartServerWithOnConn(":25566", handleClient)
-}

cmd/strom/serve_tmcpr/main.go

@@ -9,11 +9,11 @@ import (
 	"os"
 	"time"
 
-	"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_generated/v1_21_8"
-	"github.com/admin-else/strom/mc/server"
+	"git.anygate.cloud/anygatecloud/strom/mc/event"
+	"git.anygate.cloud/anygatecloud/strom/mc/proto"
+	"git.anygate.cloud/anygatecloud/strom/mc/proto/replay"
+	"git.anygate.cloud/anygatecloud/strom/mc/proto_generated/v1_21_8"
+	"git.anygate.cloud/anygatecloud/strom/mc/server"
 )
 
 type Server struct {

cmd/strom/serve_world/main.go

@@ -8,14 +8,14 @@ import (
 	"os"
 	"time"
 
-	"github.com/admin-else/strom/mc/event"
-	"github.com/admin-else/strom/mc/level"
-	"github.com/admin-else/strom/mc/level/anvil"
-	"github.com/admin-else/strom/mc/nbt"
-	"github.com/admin-else/strom/mc/proto"
-	"github.com/admin-else/strom/mc/proto_generated/v1_21_8"
-	"github.com/admin-else/strom/mc/server"
-	"github.com/admin-else/strom/mc/util"
+	"git.anygate.cloud/anygatecloud/strom/mc/event"
+	"git.anygate.cloud/anygatecloud/strom/mc/level"
+	"git.anygate.cloud/anygatecloud/strom/mc/level/anvil"
+	"git.anygate.cloud/anygatecloud/strom/mc/nbt"
+	"git.anygate.cloud/anygatecloud/strom/mc/proto"
+	"git.anygate.cloud/anygatecloud/strom/mc/proto_generated/v1_21_8"
+	"git.anygate.cloud/anygatecloud/strom/mc/server"
+	"git.anygate.cloud/anygatecloud/strom/mc/util"
 )
 
 type Server struct {

cmd/strom/status/main.go

@@ -6,11 +6,11 @@ import (
 	"log/slog"
 	"time"
 
-	"github.com/admin-else/strom/mc/client"
-	"github.com/admin-else/strom/mc/event"
-	"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"
+	"git.anygate.cloud/anygatecloud/strom/mc/client"
+	"git.anygate.cloud/anygatecloud/strom/mc/event"
+	"git.anygate.cloud/anygatecloud/strom/mc/proto"
+	"git.anygate.cloud/anygatecloud/strom/mc/proto_base"
+	"git.anygate.cloud/anygatecloud/strom/mc/proto_generated/v1_21_8"
 )
 
 var cmd = flag.NewFlagSet("status", flag.ContinueOnError)

go.mod

@@ -1,4 +1,4 @@
-module github.com/admin-else/strom
+module git.anygate.cloud/anygatecloud/strom
 
 go 1.26.2
 

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

@@ -1,9 +1,11 @@
 package api
 
 import (
-	"github.com/admin-else/strom/mc/crypto"
+	"git.anygate.cloud/anygatecloud/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/chat/mod.go

@@ -12,9 +12,10 @@ import (
 	"fmt"
 	"time"
 
-	"github.com/admin-else/strom/mc/api"
-	"github.com/admin-else/strom/mc/proto"
-	"github.com/admin-else/strom/mc/proto_generated/v1_21_11"
+	"git.anygate.cloud/anygatecloud/strom/mc/api"
+	"git.anygate.cloud/anygatecloud/strom/mc/proto"
+	"git.anygate.cloud/anygatecloud/strom/mc/proto_generated/v1_21_11"
+	"git.anygate.cloud/anygatecloud/strom/mc/proto_generated/v1_8"
 	"github.com/google/uuid"
 )
 
@@ -43,6 +44,9 @@ func Start(c *proto.Conn, acc *api.Account) (*Module, error) {
 }
 
 func (m *Module) initSigning(acc *api.Account) (err error) {
+	if m.Conn.ProtocolVersion < 764 {
+		return nil
+	}
 	keys, err := acc.FetchKeys()
 	if err != nil {
 		return fmt.Errorf("fetch profile keys: %w", err)
@@ -80,8 +84,12 @@ func (m *Module) initSigning(acc *api.Account) (err error) {
 }
 
 // SendMessage sends a chat message. If signing is enabled, the message is signed;
-// otherwise it is sent unsigned.
+// otherwise it is sent unsigned. For pre-1.19 protocol versions, uses the legacy
+// chat packet format (plain string).
 func (m *Module) SendMessage(message string) (err error) {
+	if m.Conn.ProtocolVersion < 764 {
+		return m.Conn.Send(&v1_8.PlayToServerPacketChat{Message: message})
+	}
 	if m.canSign {
 		return m.sendSigned(message)
 	}

mc/bot/keepalive/mod.go

@@ -1,8 +1,8 @@
 package keepalive
 
 import (
-	"github.com/admin-else/strom/mc/proto"
-	"github.com/admin-else/strom/mc/proto_generated/v1_21_8"
+	"git.anygate.cloud/anygatecloud/strom/mc/proto"
+	"git.anygate.cloud/anygatecloud/strom/mc/proto_generated/v1_21_8"
 )
 
 type mod struct {
@@ -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/bot/world/mod.go

@@ -5,9 +5,9 @@ import (
 	"errors"
 	"sync"
 
-	"github.com/admin-else/strom/mc/level"
-	"github.com/admin-else/strom/mc/proto"
-	"github.com/admin-else/strom/mc/proto_generated/v1_21_11"
+	"git.anygate.cloud/anygatecloud/strom/mc/level"
+	"git.anygate.cloud/anygatecloud/strom/mc/proto"
+	"git.anygate.cloud/anygatecloud/strom/mc/proto_generated/v1_21_11"
 )
 
 var (

mc/client/client.go

@@ -2,12 +2,13 @@ package client
 
 import (
 	"context"
+	"errors"
 	"net"
 
-	"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/server"
+	"git.anygate.cloud/anygatecloud/strom/mc/data"
+	"git.anygate.cloud/anygatecloud/strom/mc/proto"
+	"git.anygate.cloud/anygatecloud/strom/mc/proto_base"
+	"git.anygate.cloud/anygatecloud/strom/mc/server"
 )
 
 // Connect connects to the given address note that it does not resolve the SRV records it's just a raw net.Dial
@@ -21,6 +22,10 @@ func Connect(ctx context.Context, addr string, version string) (ret *proto.Conn,
 		if err != nil {
 			return
 		}
+		if s.Version.Protocol == 0 {
+			err = errors.New("server didnt return protocol version")
+			return
+		}
 		protocolVersion = s.Version.Protocol
 	} else {
 		var v data.VersionInfo
@@ -55,3 +60,23 @@ func ConnectVersionLess(ctx context.Context, addr string) (ret *proto.Conn, err
 	ret.W = ret.Conn
 	return
 }
+
+// ConnectWithConn wraps an existing net.Conn into a proto.Conn with the given
+// Minecraft version. The version must be non-empty.
+func ConnectWithConn(ctx context.Context, conn net.Conn, version string) (ret *proto.Conn, err error) {
+	if ctx == nil {
+		ctx = context.Background()
+	}
+	ret = proto.NewConnCtx(ctx)
+	ret.Actor = proto_base.Client
+	ret.Conn = conn
+	ret.R = conn
+	ret.W = conn
+	v, err := data.LookUpVersionByName(version)
+	if err != nil {
+		return
+	}
+	ret.ProtocolVersion = v.Version
+	ret.Version = version
+	return
+}

mc/client/config_ignorer.go

@@ -4,10 +4,10 @@ import (
 	"errors"
 	"fmt"
 
-	"github.com/admin-else/strom/mc/event"
-	"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"
+	"git.anygate.cloud/anygatecloud/strom/mc/event"
+	"git.anygate.cloud/anygatecloud/strom/mc/proto"
+	"git.anygate.cloud/anygatecloud/strom/mc/proto_base"
+	"git.anygate.cloud/anygatecloud/strom/mc/proto_generated/v1_21_8"
 )
 
 type ConfigIgnorer struct {
@@ -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

@@ -4,11 +4,12 @@ import (
 	"net"
 	"strconv"
 
-	"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"
+	"git.anygate.cloud/anygatecloud/strom/mc/proto"
+	"git.anygate.cloud/anygatecloud/strom/mc/proto_base"
+	"git.anygate.cloud/anygatecloud/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

@@ -7,15 +7,19 @@ import (
 	"crypto/x509"
 	"encoding/json"
 	"errors"
+	"net"
 
-	"github.com/admin-else/strom/mc/api"
-	"github.com/admin-else/strom/mc/crypto"
-	"github.com/admin-else/strom/mc/event"
-	"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"
+	"git.anygate.cloud/anygatecloud/strom/mc/api"
+	"git.anygate.cloud/anygatecloud/strom/mc/crypto"
+	"git.anygate.cloud/anygatecloud/strom/mc/event"
+	"git.anygate.cloud/anygatecloud/strom/mc/proto"
+	"git.anygate.cloud/anygatecloud/strom/mc/proto_base"
+	"git.anygate.cloud/anygatecloud/strom/mc/proto_generated/v1_16_5"
+	"git.anygate.cloud/anygatecloud/strom/mc/proto_generated/v1_21_8"
+	"git.anygate.cloud/anygatecloud/strom/mc/proto_generated/v1_8"
+	"git.anygate.cloud/anygatecloud/strom/mc/proto_generated/v26_2"
+	"git.anygate.cloud/anygatecloud/strom/mc/text"
+	"github.com/google/uuid"
 )
 
 type LoginClient struct {
@@ -53,28 +57,36 @@ func (s *LoginClient) OnClose(_ event.Close) (err error) {
 	return
 }
 
-func (s *LoginClient) OnCompress(compress *v1_21_8.LoginToClientPacketCompress) (err error) {
-	s.SetCompressionThreshold(compress.Threshold)
+func (s *LoginClient) OnCompress(packet *v1_8.LoginToClientPacketCompress) (err error) {
+	s.SetCompressionThreshold(packet.Threshold)
 	return
 }
 
+func (s *LoginClient) OnEncryptV1_8(packet *v1_8.LoginToClientPacketEncryptionBegin) (err error) {
+	return s.doEncrypt(packet.ServerId, packet.PublicKey, packet.VerifyToken, true)
+}
+
 func (s *LoginClient) OnEncrypt(packet *v1_21_8.LoginToClientPacketEncryptionBegin) (err error) {
+	return s.doEncrypt(packet.ServerId, packet.PublicKey, packet.VerifyToken, packet.ShouldAuthenticate)
+}
+
+func (s *LoginClient) doEncrypt(serverId string, publicKey []byte, verifyToken []byte, shouldAuthenticate bool) (err error) {
 	sharedSecret := make([]byte, 16)
 	_, _ = rand.Read(sharedSecret) //never fails
 
-	if packet.ShouldAuthenticate {
+	if shouldAuthenticate {
 		if s.Account.Ygg == "" {
 			err = NoTokenErr
 			return
 		}
-		serverId := crypto.AuthDigest([]byte(packet.ServerId), sharedSecret, packet.PublicKey)
-		err = s.Account.JoinServer(serverId)
+		hash := crypto.AuthDigest([]byte(serverId), sharedSecret, publicKey)
+		err = s.Account.JoinServer(hash)
 		if err != nil {
 			return
 		}
 	}
 
-	pubAny, err := x509.ParsePKIXPublicKey(packet.PublicKey)
+	pubAny, err := x509.ParsePKIXPublicKey(publicKey)
 	if err != nil {
 		return
 	}
@@ -83,7 +95,7 @@ func (s *LoginClient) OnEncrypt(packet *v1_21_8.LoginToClientPacketEncryptionBeg
 		err = BadPublicKeyTypeErr
 		return
 	}
-	verifyTokenEnc, err := rsa.EncryptPKCS1v15(rand.Reader, pub, packet.VerifyToken)
+	verifyTokenEnc, err := rsa.EncryptPKCS1v15(rand.Reader, pub, verifyToken)
 	if err != nil {
 		return
 	}
@@ -98,10 +110,9 @@ func (s *LoginClient) OnEncrypt(packet *v1_21_8.LoginToClientPacketEncryptionBeg
 	}
 	err = s.SetSecret(sharedSecret)
 	return
-
 }
 
-func (s *LoginClient) OnDisconnect(packet *v1_21_8.LoginToClientPacketDisconnect) (err error) {
+func (s *LoginClient) OnDisconnect(packet *v1_8.LoginToClientPacketDisconnect) (err error) {
 	var reason text.Component
 	err = json.Unmarshal([]byte(packet.Reason), &reason)
 	if err != nil {
@@ -111,13 +122,27 @@ func (s *LoginClient) OnDisconnect(packet *v1_21_8.LoginToClientPacketDisconnect
 	return
 }
 
+func (s *LoginClient) OnSuccessV1_8(success *v1_8.LoginToClientPacketSuccess) (err error) {
+	s.GivenAccount = &v1_21_8.LoginToClientPacketSuccess{
+		Uuid:     uuid.MustParse(success.Uuid),
+		Username: success.Username,
+	}
+	s.SetState(proto_base.Play)
+	err = event.HandlerDoneErr{}
+	return
+}
+
 func (s *LoginClient) OnSuccess(success *v1_21_8.LoginToClientPacketSuccess) (err error) {
 	s.GivenAccount = success
+	if s.ProtocolVersion >= 764 {
 		err = s.Send(&v1_21_8.LoginToServerPacketLoginAcknowledged{})
 		if err != nil {
 			return
 		}
 		s.SetState(proto_base.Configuration)
+	} else {
+		s.SetState(proto_base.Play)
+	}
 	err = event.HandlerDoneErr{}
 	return
 }
@@ -130,24 +155,44 @@ func (s *LoginClient) OnSuccess26_2(success *v26_2.LoginToClientPacketSuccess) (
 	})
 }
 
+func (s *LoginClient) OnSuccess1_16_5(success *v1_16_5.LoginToClientPacketSuccess) (err error) {
+	return s.OnSuccess(&v1_21_8.LoginToClientPacketSuccess{
+		Uuid:     success.Uuid,
+		Username: success.Username,
+	})
+}
+
 func (s *LoginClient) OnStart() (err error) {
 	return
 }
 
+// LoginRaw performs the login handshake on an already-established connection without DNS resolution or configuration handling.
+// The handshake address is derived from the connection's RemoteAddr.
 func LoginRaw(c *proto.Conn, account *api.Account) (err error) {
+	return LoginRawAddr(c, account, "")
+}
+
+// LoginRawAddr performs the login handshake on an already-established connection using the given address for the handshake packet.
+// If hostAddr is empty, the handshake address is derived from the connection's RemoteAddr.
+func LoginRawAddr(c *proto.Conn, account *api.Account, hostAddr string) (err error) {
 	lc := &LoginClient{
 		Conn:    c,
 		Account: account,
 	}
 	lc.RegisterCritical(lc.OnDefault)
 	lc.RegisterCritical(lc.OnClose)
-	lc.RegisterCriticalUntilLatest(lc.OnCompress)
-	lc.RegisterCriticalUntilLatest(lc.OnEncrypt)
-	lc.RegisterCriticalUntilLatest(lc.OnDisconnect)
-	lc.RegisterCriticalUntil("26.1", lc.OnSuccess)
-	lc.RegisterCriticalUntilLatest(lc.OnSuccess26_2)
+	lc.RegisterUntil("26.2", lc.OnCompress, lc.OnDisconnect, lc.OnEncrypt)
+	lc.RegisterUntil("26.1", lc.OnSuccess)
+	lc.RegisterUntilLatest(lc.OnSuccess26_2)
+	lc.RegisterUntil("1.14.4", lc.OnEncryptV1_8, lc.OnSuccessV1_8)
+	lc.RegisterUntil("1.16.5", lc.OnSuccess1_16_5)
 
-	p, err := MakeHandshakePacket(lc.Conn, proto_base.Login)
+	var p proto_base.EncodeDecodeAble
+	if hostAddr != "" {
+		p, err = MakeHandshakePacketAddr(lc.Conn, proto_base.Login, hostAddr)
+	} else {
+		p, err = MakeHandshakePacket(lc.Conn, proto_base.Login)
+	}
 	if err != nil {
 		return
 	}
@@ -157,7 +202,11 @@ func LoginRaw(c *proto.Conn, account *api.Account) (err error) {
 		return
 	}
 	lc.SetState(proto_base.Login)
+	if lc.Conn.ProtocolVersion < 759 {
+		err = lc.Send(&v1_8.LoginToServerPacketLoginStart{Username: lc.Account.Name})
+	} else {
 		err = lc.Send(&v1_21_8.LoginToServerPacketLoginStart{Username: lc.Account.Name, PlayerUUID: lc.Account.Uuid})
+	}
 
 	err = lc.StartConn()
 	if err != nil {
@@ -166,31 +215,67 @@ 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
 	}
 }
 
+func WithIgnoreConfig() func(ls *loginSettings) {
+	return func(ls *loginSettings) {
+		ls.IgnoreConfig = true
+	}
+}
+
+// DialFunc is a context-aware dial function used by Login to establish a TCP connection.
+type DialFunc func(ctx context.Context, network, addr string) (net.Conn, error)
+
+// WithConn returns a login setting that uses an already-established net.Conn instead of dialling.
+// WithVersion must also be set; auto-detection is not possible with a pre-established connection.
+func WithConn(conn net.Conn) func(ls *loginSettings) {
+	return func(ls *loginSettings) {
+		ls.Conn = conn
+	}
+}
+
+// WithDialer returns a login setting that uses the given dial function instead of net.Dialer.
+// Auto version detection via status ping is still supported when no explicit version is set.
+func WithDialer(d DialFunc) func(ls *loginSettings) {
+	return func(ls *loginSettings) {
+		ls.Dialer = d
+	}
+}
+
+var (
+	ErrWithConnRequiresVersion = errors.New("WithVersion is required when using WithConn")
+	ErrWithConnNoStatus        = errors.New("auto version detection is not supported with WithConn")
+)
+
 type loginSettings struct {
 	NoDns        bool
 	Ctx          context.Context
 	Version      string
 	IgnoreConfig bool
+	Conn         net.Conn
+	Dialer       DialFunc
 }
 
+// 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{}
 
@@ -198,22 +283,54 @@ func Login(connectTo string, account *api.Account, settings ...func(ls *loginSet
 		setting(ls)
 	}
 
+	hostAddr := connectTo
+
+	if ls.Conn != nil {
+		if ls.Version == "" {
+			return nil, ErrWithConnRequiresVersion
+		}
+		c, err = ConnectWithConn(ls.Ctx, ls.Conn, ls.Version)
+		if err != nil {
+			return
+		}
+	} else if ls.Dialer != nil {
+		if ls.Version == "" {
+			return nil, ErrWithConnRequiresVersion
+		}
+		if !ls.NoDns {
+			connectTo, _, _, err = DoDNSChecked(ls.Ctx, connectTo, nil)
+			if err != nil {
+				return
+			}
+		}
+		var conn net.Conn
+		conn, err = ls.Dialer(ls.Ctx, "tcp", connectTo)
+		if err != nil {
+			return
+		}
+		c, err = ConnectWithConn(ls.Ctx, conn, ls.Version)
+		if err != nil {
+			conn.Close()
+			return
+		}
+	} else {
 		if !ls.NoDns {
 			connectTo, _, _, err = DoDNSChecked(ls.Ctx, connectTo, nil)
 			if err != nil {
 				return
 			}
 		}
-
 		c, err = Connect(ls.Ctx, connectTo, ls.Version)
 		if err != nil {
 			return
 		}
-	err = LoginRaw(c, account)
+	}
+
+	err = LoginRawAddr(c, account, hostAddr)
 	if err != nil {
 		return
 	}
-	if !ls.IgnoreConfig {
+	if !ls.IgnoreConfig && c.ProtocolVersion >= 764 {
 		err = IgnoreConfig(c)
 	}
 	return

mc/client/login_test.go

@@ -4,10 +4,10 @@ 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"
+	"git.anygate.cloud/anygatecloud/strom/mc/data"
+	"git.anygate.cloud/anygatecloud/strom/mc/proto"
+	"git.anygate.cloud/anygatecloud/strom/mc/proto_base"
+	"git.anygate.cloud/anygatecloud/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) {

mc/client/status.go

@@ -5,11 +5,12 @@ import (
 	"encoding/json"
 	"time"
 
-	"github.com/admin-else/strom/mc/event"
-	"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/server"
+	"git.anygate.cloud/anygatecloud/strom/mc/event"
+	"git.anygate.cloud/anygatecloud/strom/mc/proto"
+	"git.anygate.cloud/anygatecloud/strom/mc/proto_base"
+	"git.anygate.cloud/anygatecloud/strom/mc/proto_generated/v1_21_8"
+	"git.anygate.cloud/anygatecloud/strom/mc/proto_generated/v1_8"
+	"git.anygate.cloud/anygatecloud/strom/mc/server"
 )
 
 type StatusClient struct {
@@ -19,7 +20,7 @@ type StatusClient struct {
 	DoPingRoundTripTime           bool
 }
 
-func (s *StatusClient) OnStatus(p *v1_21_8.StatusToClientPacketServerInfo) (err error) {
+func (s *StatusClient) OnStatus(p *v1_8.StatusToClientPacketServerInfo) (err error) {
 	s.Status = p.Response
 	s.PingSendTime = time.Now()
 	if s.DoPingRoundTripTime {
@@ -30,7 +31,7 @@ func (s *StatusClient) OnStatus(p *v1_21_8.StatusToClientPacketServerInfo) (err
 	return
 }
 
-func (s *StatusClient) OnPong(p *v1_21_8.StatusToClientPacketPing) (err error) {
+func (s *StatusClient) OnPong(p *v1_8.StatusToClientPacketPing) (err error) {
 	s.PingReceiveTime = time.Now()
 	err = event.HandlerDoneErr{}
 	return
@@ -40,20 +41,24 @@ func (s *StatusClient) OnPong(p *v1_21_8.StatusToClientPacketPing) (err error) {
 // So ignore the resource leak warning. And maybe attach a warn ignore comment.
 // It does not resolve SRV records.
 func StatusRaw(ctx context.Context, addr string) (s *StatusClient, err error) {
+	return StatusRawWithVersion(ctx, addr, "1.21.8")
+}
+
+// StatusRawWithVersion is like StatusRaw but uses the given Minecraft version for the handshake.
+func StatusRawWithVersion(ctx context.Context, addr, version string) (s *StatusClient, err error) {
 	c, err := ConnectVersionLess(ctx, addr)
 	if err != nil {
 		return
 	}
 	defer c.Close()
-	err = c.SetVersion("1.21.8")
+	err = c.SetVersion(version)
 	if err != nil {
 		return
 	}
 	s = &StatusClient{
 		Conn: c,
 	}
-	s.RegisterCriticalUntilLatest(s.OnStatus)
-	s.RegisterCriticalUntilLatest(s.OnPong)
+	s.RegisterUntil("26.2", s.OnStatus, s.OnPong) 
 
 	p, err := MakeHandshakePacketAddr(s.Conn, proto_base.Status, addr)
 	if err != nil {
@@ -71,11 +76,12 @@ func StatusRaw(ctx context.Context, addr string) (s *StatusClient, err error) {
 }
 
 // StatusNoDns is like Status but does not resolve SRV records.
-func StatusNoDns(addr string) (status server.StatusResponse, err error) {
-	s, err := StatusRaw(context.Background(), addr)
+func StatusNoDns(ctx context.Context, addr string) (status server.StatusResponse, err error) {
+	s, err := StatusRaw(ctx, addr)
 	if err != nil {
 		return
 	}
+	defer s.Close()
 	err = json.Unmarshal([]byte(s.Status), &status)
 	return
 }
@@ -86,5 +92,5 @@ func Status(ctx context.Context, addr string) (status server.StatusResponse, err
 	if err != nil {
 		return
 	}
-	return StatusNoDns(addr)
+	return StatusNoDns(ctx, addr)
 }

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/biomes_test.go

@@ -3,7 +3,7 @@ package data_test
 import (
 	"testing"
 
-	"github.com/admin-else/strom/mc/data"
+	"git.anygate.cloud/anygatecloud/strom/mc/data"
 )
 
 func TestLookupBiomeById(t *testing.T) {

mc/data/blocks.go

@@ -5,7 +5,7 @@ import (
 	"slices"
 	"strconv"
 
-	"github.com/admin-else/strom/mc/util"
+	"git.anygate.cloud/anygatecloud/strom/mc/util"
 )
 
 //  {
@@ -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/blocks_test.go

@@ -4,7 +4,7 @@ import (
 	"fmt"
 	"testing"
 
-	"github.com/admin-else/strom/mc/data"
+	"git.anygate.cloud/anygatecloud/strom/mc/data"
 )
 
 func TestLookupBlockByStateId(t *testing.T) {

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

@@ -6,7 +6,7 @@ set -xeuo pipefail
 cd "$(dirname "$0")"
 
 rm -rf minecraft-data/
-git clone --depth 1 git@github.com:PrismarineJS/minecraft-data.git
+git clone --depth 1 git@github.com:admin-else/minecraft-data.git
 mv minecraft-data minecraft-data-untrimmed
 
 mkdir minecraft-data
@@ -20,8 +20,17 @@ copy-mc() {
 
 copy-mc common
 
+# Legacy versions
+copy-mc 1.8
+copy-mc 1.12.2
+copy-mc 1.14.4
+copy-mc 1.16.5
+
+# Modern versions
 copy-mc 1.21.8
 copy-mc 1.21.9
 copy-mc 1.21.11
+copy-mc 26.1
+copy-mc 26.2
 
 rm -rf 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/pc/1.12.2/version.json

@@ -0,0 +1,5 @@
+{
+  "minecraftVersion": "1.12.2",
+  "version":340,
+  "majorVersion": "1.12"
+}

mc/data/minecraft-data/pc/1.14.4/biomes.json

@@ -0,0 +1,953 @@
+[
+  {
+    "id": 0,
+    "name": "ocean",
+    "category": "ocean",
+    "temperature": 0.5,
+    "precipitation": "rain",
+    "depth": -1,
+    "dimension": "overworld",
+    "displayName": "Ocean",
+    "color": 112,
+    "rainfall": 0.5
+  },
+  {
+    "id": 1,
+    "name": "plains",
+    "category": "plains",
+    "temperature": 0.8,
+    "precipitation": "rain",
+    "depth": 0.125,
+    "dimension": "overworld",
+    "displayName": "Plains",
+    "color": 9286496,
+    "rainfall": 0.4,
+    "child": 129
+  },
+  {
+    "id": 2,
+    "name": "desert",
+    "category": "desert",
+    "temperature": 2,
+    "precipitation": "none",
+    "depth": 0.125,
+    "dimension": "overworld",
+    "displayName": "Desert",
+    "color": 16421912,
+    "rainfall": 0,
+    "child": 130
+  },
+  {
+    "id": 3,
+    "name": "mountains",
+    "category": "extreme_hills",
+    "temperature": 0.2,
+    "precipitation": "rain",
+    "depth": 1,
+    "dimension": "overworld",
+    "displayName": "Mountains",
+    "color": 6316128,
+    "rainfall": 0.3,
+    "child": 131
+  },
+  {
+    "id": 4,
+    "name": "forest",
+    "category": "forest",
+    "temperature": 0.7,
+    "precipitation": "rain",
+    "depth": 0.1,
+    "dimension": "overworld",
+    "displayName": "Forest",
+    "color": 353825,
+    "rainfall": 0.8,
+    "child": 132
+  },
+  {
+    "id": 5,
+    "name": "taiga",
+    "category": "taiga",
+    "temperature": 0.25,
+    "precipitation": "rain",
+    "depth": 0.2,
+    "dimension": "overworld",
+    "displayName": "Taiga",
+    "color": 747097,
+    "rainfall": 0.8,
+    "child": 133
+  },
+  {
+    "id": 6,
+    "name": "swamp",
+    "category": "swamp",
+    "temperature": 0.8,
+    "precipitation": "rain",
+    "depth": -0.2,
+    "dimension": "overworld",
+    "displayName": "Swamp",
+    "color": 522674,
+    "rainfall": 0.9,
+    "child": 134
+  },
+  {
+    "id": 7,
+    "name": "river",
+    "category": "river",
+    "temperature": 0.5,
+    "precipitation": "rain",
+    "depth": -0.5,
+    "dimension": "overworld",
+    "displayName": "River",
+    "color": 255,
+    "rainfall": 0.5
+  },
+  {
+    "id": 8,
+    "name": "nether_wastes",
+    "category": "nether",
+    "temperature": 2,
+    "precipitation": "none",
+    "depth": 0.1,
+    "climates": [
+      {
+        "temperature": 0,
+        "humidity": 0,
+        "altitude": 0,
+        "weirdness": 0,
+        "offset": 0
+      }
+    ],
+    "dimension": "nether",
+    "displayName": "Nether Wastes",
+    "color": 12532539,
+    "rainfall": 0
+  },
+  {
+    "id": 9,
+    "name": "the_end",
+    "category": "the_end",
+    "temperature": 0.5,
+    "precipitation": "none",
+    "depth": 0.1,
+    "dimension": "end",
+    "displayName": "The End",
+    "color": 8421631,
+    "rainfall": 0.5
+  },
+  {
+    "id": 10,
+    "name": "frozen_ocean",
+    "category": "ocean",
+    "temperature": 0,
+    "precipitation": "snow",
+    "depth": -1,
+    "dimension": "overworld",
+    "displayName": "Frozen Ocean",
+    "color": 7368918,
+    "rainfall": 0.5
+  },
+  {
+    "id": 11,
+    "name": "frozen_river",
+    "category": "river",
+    "temperature": 0,
+    "precipitation": "snow",
+    "depth": -0.5,
+    "dimension": "overworld",
+    "displayName": "Frozen River",
+    "color": 10526975,
+    "rainfall": 0.5
+  },
+  {
+    "id": 12,
+    "name": "snowy_tundra",
+    "category": "icy",
+    "temperature": 0,
+    "precipitation": "snow",
+    "depth": 0.125,
+    "dimension": "overworld",
+    "displayName": "Snowy Tundra",
+    "color": 16777215,
+    "rainfall": 0.5,
+    "child": 140
+  },
+  {
+    "id": 13,
+    "name": "snowy_mountains",
+    "category": "icy",
+    "temperature": 0,
+    "precipitation": "snow",
+    "depth": 0.45,
+    "dimension": "overworld",
+    "displayName": "Snowy Mountains",
+    "color": 10526880,
+    "rainfall": 0.5
+  },
+  {
+    "id": 14,
+    "name": "mushroom_fields",
+    "category": "mushroom",
+    "temperature": 0.9,
+    "precipitation": "rain",
+    "depth": 0.2,
+    "dimension": "overworld",
+    "displayName": "Mushroom Fields",
+    "color": 16711935,
+    "rainfall": 1
+  },
+  {
+    "id": 15,
+    "name": "mushroom_field_shore",
+    "category": "mushroom",
+    "temperature": 0.9,
+    "precipitation": "rain",
+    "depth": 0,
+    "dimension": "overworld",
+    "displayName": "Mushroom Fields Shore",
+    "color": 10486015,
+    "rainfall": 1
+  },
+  {
+    "id": 16,
+    "name": "beach",
+    "category": "beach",
+    "temperature": 0.8,
+    "precipitation": "rain",
+    "depth": 0,
+    "dimension": "overworld",
+    "displayName": "Beach",
+    "color": 16440917,
+    "rainfall": 0.4
+  },
+  {
+    "id": 17,
+    "name": "desert_hills",
+    "category": "desert",
+    "temperature": 2,
+    "precipitation": "none",
+    "depth": 0.45,
+    "dimension": "overworld",
+    "displayName": "Desert Hills",
+    "color": 13786898,
+    "rainfall": 0
+  },
+  {
+    "id": 18,
+    "name": "wooded_hills",
+    "category": "forest",
+    "temperature": 0.7,
+    "precipitation": "rain",
+    "depth": 0.45,
+    "dimension": "overworld",
+    "displayName": "Wooded Hills",
+    "color": 2250012,
+    "rainfall": 0.8
+  },
+  {
+    "id": 19,
+    "name": "taiga_hills",
+    "category": "taiga",
+    "temperature": 0.25,
+    "precipitation": "rain",
+    "depth": 0.45,
+    "dimension": "overworld",
+    "displayName": "Taiga Hills",
+    "color": 1456435,
+    "rainfall": 0.8
+  },
+  {
+    "id": 20,
+    "name": "mountain_edge",
+    "category": "extreme_hills",
+    "temperature": 0.2,
+    "precipitation": "rain",
+    "depth": 0.8,
+    "dimension": "overworld",
+    "displayName": "Mountain Edge",
+    "color": 7501978,
+    "rainfall": 0.3
+  },
+  {
+    "id": 21,
+    "name": "jungle",
+    "category": "jungle",
+    "temperature": 0.95,
+    "precipitation": "rain",
+    "depth": 0.1,
+    "dimension": "overworld",
+    "displayName": "Jungle",
+    "color": 5470985,
+    "rainfall": 0.9,
+    "child": 149
+  },
+  {
+    "id": 22,
+    "name": "jungle_hills",
+    "category": "jungle",
+    "temperature": 0.95,
+    "precipitation": "rain",
+    "depth": 0.45,
+    "dimension": "overworld",
+    "displayName": "Jungle Hills",
+    "color": 2900485,
+    "rainfall": 0.9
+  },
+  {
+    "id": 23,
+    "name": "jungle_edge",
+    "category": "jungle",
+    "temperature": 0.95,
+    "precipitation": "rain",
+    "depth": 0.1,
+    "dimension": "overworld",
+    "displayName": "Jungle Edge",
+    "color": 6458135,
+    "rainfall": 0.8,
+    "child": 151
+  },
+  {
+    "id": 24,
+    "name": "deep_ocean",
+    "category": "ocean",
+    "temperature": 0.5,
+    "precipitation": "rain",
+    "depth": -1.8,
+    "dimension": "overworld",
+    "displayName": "Deep Ocean",
+    "color": 48,
+    "rainfall": 0.5
+  },
+  {
+    "id": 25,
+    "name": "stone_shore",
+    "category": "none",
+    "temperature": 0.2,
+    "precipitation": "rain",
+    "depth": 0.1,
+    "dimension": "overworld",
+    "displayName": "Stone Shore",
+    "color": 10658436,
+    "rainfall": 0.3
+  },
+  {
+    "id": 26,
+    "name": "snowy_beach",
+    "category": "beach",
+    "temperature": 0.05,
+    "precipitation": "snow",
+    "depth": 0,
+    "dimension": "overworld",
+    "displayName": "Snowy Beach",
+    "color": 16445632,
+    "rainfall": 0.3
+  },
+  {
+    "id": 27,
+    "name": "birch_forest",
+    "category": "forest",
+    "temperature": 0.6,
+    "precipitation": "rain",
+    "depth": 0.1,
+    "dimension": "overworld",
+    "displayName": "Birch Forest",
+    "color": 3175492,
+    "rainfall": 0.6,
+    "child": 155
+  },
+  {
+    "id": 28,
+    "name": "birch_forest_hills",
+    "category": "forest",
+    "temperature": 0.6,
+    "precipitation": "rain",
+    "depth": 0.45,
+    "dimension": "overworld",
+    "displayName": "Birch Forest Hills",
+    "color": 2055986,
+    "rainfall": 0.6,
+    "child": 156
+  },
+  {
+    "id": 29,
+    "name": "dark_forest",
+    "category": "forest",
+    "temperature": 0.7,
+    "precipitation": "rain",
+    "depth": 0.1,
+    "dimension": "overworld",
+    "displayName": "Dark Forest",
+    "color": 4215066,
+    "rainfall": 0.8,
+    "child": 157
+  },
+  {
+    "id": 30,
+    "name": "snowy_taiga",
+    "category": "taiga",
+    "temperature": -0.5,
+    "precipitation": "snow",
+    "depth": 0.2,
+    "dimension": "overworld",
+    "displayName": "Snowy Taiga",
+    "color": 3233098,
+    "rainfall": 0.4,
+    "child": 158
+  },
+  {
+    "id": 31,
+    "name": "snowy_taiga_hills",
+    "category": "taiga",
+    "temperature": -0.5,
+    "precipitation": "snow",
+    "depth": 0.45,
+    "dimension": "overworld",
+    "displayName": "Snowy Taiga Hills",
+    "color": 2375478,
+    "rainfall": 0.4
+  },
+  {
+    "id": 32,
+    "name": "giant_tree_taiga",
+    "category": "taiga",
+    "temperature": 0.3,
+    "precipitation": "rain",
+    "depth": 0.2,
+    "dimension": "overworld",
+    "displayName": "Giant Tree Taiga",
+    "color": 5858897,
+    "rainfall": 0.8,
+    "child": 160
+  },
+  {
+    "id": 33,
+    "name": "giant_tree_taiga_hills",
+    "category": "taiga",
+    "temperature": 0.3,
+    "precipitation": "rain",
+    "depth": 0.45,
+    "dimension": "overworld",
+    "displayName": "Giant Tree Taiga Hills",
+    "color": 4542270,
+    "rainfall": 0.8,
+    "child": 161
+  },
+  {
+    "id": 34,
+    "name": "wooded_mountains",
+    "category": "extreme_hills",
+    "temperature": 0.2,
+    "precipitation": "rain",
+    "depth": 1,
+    "dimension": "overworld",
+    "displayName": "Wooded Mountains",
+    "color": 5271632,
+    "rainfall": 0.3,
+    "child": 162
+  },
+  {
+    "id": 35,
+    "name": "savanna",
+    "category": "savanna",
+    "temperature": 1.2,
+    "precipitation": "none",
+    "depth": 0.125,
+    "dimension": "overworld",
+    "displayName": "Savanna",
+    "color": 12431967,
+    "rainfall": 0,
+    "child": 163
+  },
+  {
+    "id": 36,
+    "name": "savanna_plateau",
+    "category": "savanna",
+    "temperature": 1,
+    "precipitation": "none",
+    "depth": 1.5,
+    "dimension": "overworld",
+    "displayName": "Savanna Plateau",
+    "color": 10984804,
+    "rainfall": 0,
+    "child": 164
+  },
+  {
+    "id": 37,
+    "name": "badlands",
+    "category": "mesa",
+    "temperature": 2,
+    "precipitation": "none",
+    "depth": 0.1,
+    "dimension": "overworld",
+    "displayName": "Badlands",
+    "color": 14238997,
+    "rainfall": 0,
+    "child": 165
+  },
+  {
+    "id": 38,
+    "name": "wooded_badlands_plateau",
+    "category": "mesa",
+    "temperature": 2,
+    "precipitation": "none",
+    "depth": 1.5,
+    "dimension": "overworld",
+    "displayName": "Wooded Badlands Plateau",
+    "color": 11573093,
+    "rainfall": 0,
+    "child": 166
+  },
+  {
+    "id": 39,
+    "name": "badlands_plateau",
+    "category": "mesa",
+    "temperature": 2,
+    "precipitation": "none",
+    "depth": 1.5,
+    "dimension": "overworld",
+    "displayName": "Badlands Plateau",
+    "color": 13274213,
+    "rainfall": 0,
+    "child": 167
+  },
+  {
+    "id": 40,
+    "name": "small_end_islands",
+    "category": "the_end",
+    "temperature": 0.5,
+    "precipitation": "none",
+    "depth": 0.1,
+    "dimension": "end",
+    "displayName": "Small End Islands",
+    "color": 42,
+    "rainfall": 0.5
+  },
+  {
+    "id": 41,
+    "name": "end_midlands",
+    "category": "the_end",
+    "temperature": 0.5,
+    "precipitation": "none",
+    "depth": 0.1,
+    "dimension": "end",
+    "displayName": "End Midlands",
+    "color": 15464630,
+    "rainfall": 0.5
+  },
+  {
+    "id": 42,
+    "name": "end_highlands",
+    "category": "the_end",
+    "temperature": 0.5,
+    "precipitation": "none",
+    "depth": 0.1,
+    "dimension": "end",
+    "displayName": "End Highlands",
+    "color": 12828041,
+    "rainfall": 0.5
+  },
+  {
+    "id": 43,
+    "name": "end_barrens",
+    "category": "the_end",
+    "temperature": 0.5,
+    "precipitation": "none",
+    "depth": 0.1,
+    "dimension": "end",
+    "displayName": "End Barrens",
+    "color": 9474162,
+    "rainfall": 0.5
+  },
+  {
+    "id": 44,
+    "name": "warm_ocean",
+    "category": "ocean",
+    "temperature": 0.5,
+    "precipitation": "rain",
+    "depth": -1,
+    "dimension": "overworld",
+    "displayName": "Warm Ocean",
+    "color": 172,
+    "rainfall": 0.5
+  },
+  {
+    "id": 45,
+    "name": "lukewarm_ocean",
+    "category": "ocean",
+    "temperature": 0.5,
+    "precipitation": "rain",
+    "depth": -1,
+    "dimension": "overworld",
+    "displayName": "Lukewarm Ocean",
+    "color": 144,
+    "rainfall": 0.5
+  },
+  {
+    "id": 46,
+    "name": "cold_ocean",
+    "category": "ocean",
+    "temperature": 0.5,
+    "precipitation": "rain",
+    "depth": -1,
+    "dimension": "overworld",
+    "displayName": "Cold Ocean",
+    "color": 2105456,
+    "rainfall": 0.5
+  },
+  {
+    "id": 47,
+    "name": "deep_warm_ocean",
+    "category": "ocean",
+    "temperature": 0.5,
+    "precipitation": "rain",
+    "depth": -1.8,
+    "dimension": "overworld",
+    "displayName": "Deep Warm Ocean",
+    "color": 80,
+    "rainfall": 0.5
+  },
+  {
+    "id": 48,
+    "name": "deep_lukewarm_ocean",
+    "category": "ocean",
+    "temperature": 0.5,
+    "precipitation": "rain",
+    "depth": -1.8,
+    "dimension": "overworld",
+    "displayName": "Deep Lukewarm Ocean",
+    "color": 64,
+    "rainfall": 0.5
+  },
+  {
+    "id": 49,
+    "name": "deep_cold_ocean",
+    "category": "ocean",
+    "temperature": 0.5,
+    "precipitation": "rain",
+    "depth": -1.8,
+    "dimension": "overworld",
+    "displayName": "Deep Cold Ocean",
+    "color": 2105400,
+    "rainfall": 0.5
+  },
+  {
+    "id": 50,
+    "name": "deep_frozen_ocean",
+    "category": "ocean",
+    "temperature": 0.5,
+    "precipitation": "rain",
+    "depth": -1.8,
+    "dimension": "overworld",
+    "displayName": "Deep Frozen Ocean",
+    "color": 4210832,
+    "rainfall": 0.5
+  },
+  {
+    "id": 127,
+    "name": "the_void",
+    "category": "none",
+    "temperature": 0.5,
+    "precipitation": "none",
+    "depth": 0.1,
+    "dimension": "end",
+    "displayName": "the_void",
+    "rainfall": 0.5,
+    "color": 0
+  },
+  {
+    "id": 129,
+    "name": "sunflower_plains",
+    "category": "plains",
+    "temperature": 0.8,
+    "precipitation": "rain",
+    "depth": 0.125,
+    "dimension": "overworld",
+    "displayName": "Sunflower Plains",
+    "color": 11918216,
+    "parent": "plains",
+    "rainfall": 0.4
+  },
+  {
+    "id": 130,
+    "name": "desert_lakes",
+    "category": "desert",
+    "temperature": 2,
+    "precipitation": "none",
+    "depth": 0.125,
+    "dimension": "overworld",
+    "displayName": "Desert Lakes",
+    "color": 16759872,
+    "parent": "desert",
+    "rainfall": 0
+  },
+  {
+    "id": 131,
+    "name": "gravelly_mountains",
+    "category": "extreme_hills",
+    "temperature": 0.2,
+    "precipitation": "rain",
+    "depth": 1,
+    "dimension": "overworld",
+    "displayName": "Gravelly Mountains",
+    "color": 8947848,
+    "parent": "mountains",
+    "rainfall": 0.3
+  },
+  {
+    "id": 132,
+    "name": "flower_forest",
+    "category": "forest",
+    "temperature": 0.7,
+    "precipitation": "rain",
+    "depth": 0.1,
+    "dimension": "overworld",
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+  }
+]

mc/data/minecraft-data/pc/1.14.4/blockCollisionShapes.json

@@ -0,0 +1,946 @@
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mc/data/minecraft-data/pc/1.14.4/effects.json

@@ -0,0 +1,200 @@
+[
+  {
+    "id": 1,
+    "name": "Speed",
+    "displayName": "Speed",
+    "type": "good"
+  },
+  {
+    "id": 2,
+    "name": "Slowness",
+    "displayName": "Slowness",
+    "type": "bad"
+  },
+  {
+    "id": 3,
+    "name": "Haste",
+    "displayName": "Haste",
+    "type": "good"
+  },
+  {
+    "id": 4,
+    "name": "MiningFatigue",
+    "displayName": "Mining Fatigue",
+    "type": "bad"
+  },
+  {
+    "id": 5,
+    "name": "Strength",
+    "displayName": "Strength",
+    "type": "good"
+  },
+  {
+    "id": 6,
+    "name": "InstantHealth",
+    "displayName": "Instant Health",
+    "type": "good"
+  },
+  {
+    "id": 7,
+    "name": "InstantDamage",
+    "displayName": "Instant Damage",
+    "type": "bad"
+  },
+  {
+    "id": 8,
+    "name": "JumpBoost",
+    "displayName": "Jump Boost",
+    "type": "good"
+  },
+  {
+    "id": 9,
+    "name": "Nausea",
+    "displayName": "Nausea",
+    "type": "bad"
+  },
+  {
+    "id": 10,
+    "name": "Regeneration",
+    "displayName": "Regeneration",
+    "type": "good"
+  },
+  {
+    "id": 11,
+    "name": "Resistance",
+    "displayName": "Resistance",
+    "type": "good"
+  },
+  {
+    "id": 12,
+    "name": "FireResistance",
+    "displayName": "Fire Resistance",
+    "type": "good"
+  },
+  {
+    "id": 13,
+    "name": "WaterBreathing",
+    "displayName": "Water Breathing",
+    "type": "good"
+  },
+  {
+    "id": 14,
+    "name": "Invisibility",
+    "displayName": "Invisibility",
+    "type": "good"
+  },
+  {
+    "id": 15,
+    "name": "Blindness",
+    "displayName": "Blindness",
+    "type": "bad"
+  },
+  {
+    "id": 16,
+    "name": "NightVision",
+    "displayName": "Night Vision",
+    "type": "good"
+  },
+  {
+    "id": 17,
+    "name": "Hunger",
+    "displayName": "Hunger",
+    "type": "bad"
+  },
+  {
+    "id": 18,
+    "name": "Weakness",
+    "displayName": "Weakness",
+    "type": "bad"
+  },
+  {
+    "id": 19,
+    "name": "Poison",
+    "displayName": "Poison",
+    "type": "bad"
+  },
+  {
+    "id": 20,
+    "name": "Wither",
+    "displayName": "Wither",
+    "type": "bad"
+  },
+  {
+    "id": 21,
+    "name": "HealthBoost",
+    "displayName": "Health Boost",
+    "type": "good"
+  },
+  {
+    "id": 22,
+    "name": "Absorption",
+    "displayName": "Absorption",
+    "type": "good"
+  },
+  {
+    "id": 23,
+    "name": "Saturation",
+    "displayName": "Saturation",
+    "type": "good"
+  },
+  {
+    "id": 24,
+    "name": "Glowing",
+    "displayName": "Glowing",
+    "type": "bad"
+  },
+  {
+    "id": 25,
+    "name": "Levitation",
+    "displayName": "Levitation",
+    "type": "bad"
+  },
+  {
+    "id": 26,
+    "name": "Luck",
+    "displayName": "Luck",
+    "type": "good"
+  },
+  {
+    "id": 27,
+    "name": "BadLuck",
+    "displayName": "Bad Luck",
+    "type": "bad"
+  },
+  {
+    "id": 28,
+    "name": "SlowFalling",
+    "displayName": "Slow Falling",
+    "type": "good"
+  },
+  {
+    "id": 29,
+    "name": "ConduitPower",
+    "displayName": "Conduit Power",
+    "type": "good"
+  },
+  {
+    "id": 30,
+    "name": "DolphinsGrace",
+    "displayName": "Dolphin's Grace",
+    "type": "good"
+  },
+  {
+    "id": 31,
+    "name": "DolphinsGrace",
+    "displayName": "Dolphin's Grace",
+    "type": "good"
+  },
+  {
+    "id": 32,
+    "name": "BadOmen",
+    "displayName": "Bad Omen",
+    "type": "good"
+  },
+  {
+    "id": 32,
+    "name": "HeroOfTheVillage",
+    "displayName": "Hero Of The Village",
+    "type": "good"
+  }
+]

mc/data/minecraft-data/pc/1.14.4/foods.json

@@ -0,0 +1,392 @@
+[
+  {
+    "id": 524,
+    "displayName": "Apple",
+    "name": "apple",
+    "stackSize": 64,
+    "foodPoints": 4,
+    "saturation": 2.4,
+    "effectiveQuality": 6.4,
+    "saturationRatio": 0.6
+  },
+  {
+    "id": 547,
+    "displayName": "Mushroom Stew",
+    "name": "mushroom_stew",
+    "stackSize": 1,
+    "foodPoints": 6,
+    "saturation": 7.2,
+    "effectiveQuality": 13.2,
+    "saturationRatio": 1.2
+  },
+  {
+    "id": 562,
+    "displayName": "Bread",
+    "name": "bread",
+    "stackSize": 64,
+    "foodPoints": 5,
+    "saturation": 6,
+    "effectiveQuality": 11,
+    "saturationRatio": 1.2
+  },
+  {
+    "id": 584,
+    "displayName": "Raw Porkchop",
+    "name": "porkchop",
+    "stackSize": 64,
+    "foodPoints": 3,
+    "saturation": 1.8,
+    "effectiveQuality": 4.8,
+    "saturationRatio": 0.6
+  },
+  {
+    "id": 585,
+    "displayName": "Cooked Porkchop",
+    "name": "cooked_porkchop",
+    "stackSize": 64,
+    "foodPoints": 8,
+    "saturation": 12.8,
+    "effectiveQuality": 20.8,
+    "saturationRatio": 1.6
+  },
+  {
+    "id": 587,
+    "displayName": "Golden Apple",
+    "name": "golden_apple",
+    "stackSize": 64,
+    "foodPoints": 4,
+    "saturation": 9.6,
+    "effectiveQuality": 13.6,
+    "saturationRatio": 2.4
+  },
+  {
+    "id": 588,
+    "displayName": "Enchanted Golden Apple",
+    "name": "enchanted_golden_apple",
+    "stackSize": 64,
+    "foodPoints": 4,
+    "saturation": 9.6,
+    "effectiveQuality": 13.6,
+    "saturationRatio": 2.4
+  },
+  {
+    "id": 625,
+    "displayName": "Raw Cod",
+    "name": "cod",
+    "stackSize": 64,
+    "foodPoints": 2,
+    "saturation": 0.4,
+    "effectiveQuality": 2.4,
+    "saturationRatio": 0.2
+  },
+  {
+    "id": 626,
+    "displayName": "Raw Salmon",
+    "name": "salmon",
+    "stackSize": 64,
+    "foodPoints": 2,
+    "saturation": 0.4,
+    "effectiveQuality": 2.4,
+    "saturationRatio": 0.2
+  },
+  {
+    "id": 627,
+    "displayName": "Tropical Fish",
+    "name": "tropical_fish",
+    "stackSize": 64,
+    "foodPoints": 1,
+    "saturation": 0.2,
+    "effectiveQuality": 1.2,
+    "saturationRatio": 0.2
+  },
+  {
+    "id": 628,
+    "displayName": "Pufferfish",
+    "name": "pufferfish",
+    "stackSize": 64,
+    "foodPoints": 1,
+    "saturation": 0.2,
+    "effectiveQuality": 1.2,
+    "saturationRatio": 0.2
+  },
+  {
+    "id": 629,
+    "displayName": "Cooked Cod",
+    "name": "cooked_cod",
+    "stackSize": 64,
+    "foodPoints": 5,
+    "saturation": 6,
+    "effectiveQuality": 11,
+    "saturationRatio": 1.2
+  },
+  {
+    "id": 630,
+    "displayName": "Cooked Salmon",
+    "name": "cooked_salmon",
+    "stackSize": 64,
+    "foodPoints": 6,
+    "saturation": 9.6,
+    "effectiveQuality": 15.6,
+    "saturationRatio": 1.5999999999999999
+  },
+  {
+    "id": 653,
+    "displayName": "Cake",
+    "name": "cake",
+    "stackSize": 1,
+    "foodPoints": 2,
+    "saturation": 0.4,
+    "effectiveQuality": 2.4,
+    "saturationRatio": 0.2
+  },
+  {
+    "id": 670,
+    "displayName": "Cookie",
+    "name": "cookie",
+    "stackSize": 64,
+    "foodPoints": 2,
+    "saturation": 0.4,
+    "effectiveQuality": 2.4,
+    "saturationRatio": 0.2
+  },
+  {
+    "id": 673,
+    "displayName": "Melon Slice",
+    "name": "melon_slice",
+    "stackSize": 64,
+    "foodPoints": 2,
+    "saturation": 1.2,
+    "effectiveQuality": 3.2,
+    "saturationRatio": 0.6
+  },
+  {
+    "id": 674,
+    "displayName": "Dried Kelp",
+    "name": "dried_kelp",
+    "stackSize": 64,
+    "foodPoints": 1,
+    "saturation": 0.6,
+    "effectiveQuality": 1.6,
+    "saturationRatio": 0.6
+  },
+  {
+    "id": 677,
+    "displayName": "Raw Beef",
+    "name": "beef",
+    "stackSize": 64,
+    "foodPoints": 3,
+    "saturation": 1.8,
+    "effectiveQuality": 4.8,
+    "saturationRatio": 0.6
+  },
+  {
+    "id": 678,
+    "displayName": "Steak",
+    "name": "cooked_beef",
+    "stackSize": 64,
+    "foodPoints": 8,
+    "saturation": 12.8,
+    "effectiveQuality": 20.8,
+    "saturationRatio": 1.6
+  },
+  {
+    "id": 679,
+    "displayName": "Raw Chicken",
+    "name": "chicken",
+    "stackSize": 64,
+    "foodPoints": 2,
+    "saturation": 1.2,
+    "effectiveQuality": 3.2,
+    "saturationRatio": 0.6
+  },
+  {
+    "id": 680,
+    "displayName": "Cooked Chicken",
+    "name": "cooked_chicken",
+    "stackSize": 64,
+    "foodPoints": 6,
+    "saturation": 7.2,
+    "effectiveQuality": 13.2,
+    "saturationRatio": 1.2
+  },
+  {
+    "id": 681,
+    "displayName": "Rotten Flesh",
+    "name": "rotten_flesh",
+    "stackSize": 64,
+    "foodPoints": 4,
+    "saturation": 0.8,
+    "effectiveQuality": 4.8,
+    "saturationRatio": 0.2
+  },
+  {
+    "id": 689,
+    "displayName": "Spider Eye",
+    "name": "spider_eye",
+    "stackSize": 64,
+    "foodPoints": 2,
+    "saturation": 3.2,
+    "effectiveQuality": 5.2,
+    "saturationRatio": 1.6
+  },
+  {
+    "id": 762,
+    "displayName": "Carrot",
+    "name": "carrot",
+    "stackSize": 64,
+    "foodPoints": 3,
+    "saturation": 3.6,
+    "effectiveQuality": 6.6,
+    "saturationRatio": 1.2
+  },
+  {
+    "id": 763,
+    "displayName": "Potato",
+    "name": "potato",
+    "stackSize": 64,
+    "foodPoints": 1,
+    "saturation": 0.6,
+    "effectiveQuality": 1.6,
+    "saturationRatio": 0.6
+  },
+  {
+    "id": 764,
+    "displayName": "Baked Potato",
+    "name": "baked_potato",
+    "stackSize": 64,
+    "foodPoints": 5,
+    "saturation": 6,
+    "effectiveQuality": 11,
+    "saturationRatio": 1.2
+  },
+  {
+    "id": 765,
+    "displayName": "Poisonous Potato",
+    "name": "poisonous_potato",
+    "stackSize": 64,
+    "foodPoints": 2,
+    "saturation": 1.2,
+    "effectiveQuality": 3.2,
+    "saturationRatio": 0.6
+  },
+  {
+    "id": 767,
+    "displayName": "Golden Carrot",
+    "name": "golden_carrot",
+    "stackSize": 64,
+    "foodPoints": 6,
+    "saturation": 14.4,
+    "effectiveQuality": 20.4,
+    "saturationRatio": 2.4
+  },
+  {
+    "id": 776,
+    "displayName": "Pumpkin Pie",
+    "name": "pumpkin_pie",
+    "stackSize": 64,
+    "foodPoints": 8,
+    "saturation": 4.8,
+    "effectiveQuality": 12.8,
+    "saturationRatio": 0.6
+  },
+  {
+    "id": 786,
+    "displayName": "Raw Rabbit",
+    "name": "rabbit",
+    "stackSize": 64,
+    "foodPoints": 3,
+    "saturation": 1.8,
+    "effectiveQuality": 4.8,
+    "saturationRatio": 0.6
+  },
+  {
+    "id": 787,
+    "displayName": "Cooked Rabbit",
+    "name": "cooked_rabbit",
+    "stackSize": 64,
+    "foodPoints": 5,
+    "saturation": 6,
+    "effectiveQuality": 11,
+    "saturationRatio": 1.2
+  },
+  {
+    "id": 788,
+    "displayName": "Rabbit Stew",
+    "name": "rabbit_stew",
+    "stackSize": 1,
+    "foodPoints": 10,
+    "saturation": 12,
+    "effectiveQuality": 22,
+    "saturationRatio": 1.2
+  },
+  {
+    "id": 799,
+    "displayName": "Raw Mutton",
+    "name": "mutton",
+    "stackSize": 64,
+    "foodPoints": 2,
+    "saturation": 1.2,
+    "effectiveQuality": 3.2,
+    "saturationRatio": 0.6
+  },
+  {
+    "id": 800,
+    "displayName": "Cooked Mutton",
+    "name": "cooked_mutton",
+    "stackSize": 64,
+    "foodPoints": 6,
+    "saturation": 9.6,
+    "effectiveQuality": 15.6,
+    "saturationRatio": 1.5999999999999999
+  },
+  {
+    "id": 818,
+    "displayName": "Chorus Fruit",
+    "name": "chorus_fruit",
+    "stackSize": 64,
+    "foodPoints": 4,
+    "saturation": 2.4,
+    "effectiveQuality": 6.4,
+    "saturationRatio": 0.6
+  },
+  {
+    "id": 820,
+    "displayName": "Beetroot",
+    "name": "beetroot",
+    "stackSize": 64,
+    "foodPoints": 1,
+    "saturation": 1.2,
+    "effectiveQuality": 2.2,
+    "saturationRatio": 1.2
+  },
+  {
+    "id": 822,
+    "displayName": "Beetroot Soup",
+    "name": "beetroot_soup",
+    "stackSize": 1,
+    "foodPoints": 6,
+    "saturation": 7.2,
+    "effectiveQuality": 13.2,
+    "saturationRatio": 1.2
+  },
+  {
+    "id": 857,
+    "displayName": "Suspicious Stew",
+    "name": "suspicious_stew",
+    "stackSize": 1,
+    "foodPoints": 6,
+    "saturation": 7.2,
+    "effectiveQuality": 13.2,
+    "saturationRatio": 1.2
+  },
+  {
+    "id": 875,
+    "displayName": "Sweet Berries",
+    "name": "sweet_berries",
+    "stackSize": 64,
+    "foodPoints": 2,
+    "saturation": 0.4,
+    "effectiveQuality": 2.4,
+    "saturationRatio": 0.2
+  }
+]

mc/data/minecraft-data/pc/1.14.4/instruments.json

@@ -0,0 +1,42 @@
+[
+  {
+    "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"
+  }
+]

mc/data/minecraft-data/pc/1.14.4/materials.json

@@ -0,0 +1,61 @@
+{
+  "rock": {
+    "521": 6,
+    "535": 2,
+    "539": 4,
+    "543": 8,
+    "550": 12
+  },
+  "wood": {
+    "522": 6,
+    "536": 2,
+    "540": 4,
+    "544": 8,
+    "551": 12
+  },
+  "plant": {
+    "522": 6,
+    "532": 1.5,
+    "533": 1.5,
+    "536": 2,
+    "537": 1.5,
+    "540": 4,
+    "541": 1.5,
+    "544": 8,
+    "548": 1.5,
+    "551": 12
+  },
+  "melon": {
+    "532": 1.5,
+    "533": 1.5,
+    "537": 1.5,
+    "541": 1.5,
+    "548": 1.5
+  },
+  "leaves": {
+    "532": 1.5,
+    "533": 1.5,
+    "537": 1.5,
+    "541": 1.5,
+    "548": 1.5,
+    "672": 6
+  },
+  "dirt": {
+    "520": 6,
+    "534": 2,
+    "538": 4,
+    "542": 8,
+    "549": 12
+  },
+  "web": {
+    "532": 15,
+    "533": 15,
+    "537": 15,
+    "541": 15,
+    "548": 15,
+    "672": 15
+  },
+  "wool": {
+    "672": 4.8
+  }
+}

mc/data/minecraft-data/pc/1.14.4/version.json

@@ -0,0 +1,5 @@
+{
+  "minecraftVersion": "1.14.4",
+  "version": 498,
+  "majorVersion": "1.14"
+}

mc/data/minecraft-data/pc/1.14.4/windows.json

@@ -0,0 +1,229 @@
+[
+  {
+    "id": "",
+    "name": "Player",
+    "slots": [
+      {
+        "name": "craft result",
+        "index": 0
+      },
+      {
+        "name": "craft grid",
+        "index": 1,
+        "size": 4
+      },
+      {
+        "name": "armor",
+        "index": 5,
+        "size": 4
+      },
+      {
+        "name": "helmet",
+        "index": 5
+      },
+      {
+        "name": "chestplate",
+        "index": 6
+      },
+      {
+        "name": "leggings",
+        "index": 7
+      },
+      {
+        "name": "boots",
+        "index": 8
+      }
+    ]
+  },
+  {
+    "id": "EntityHorse",
+    "name": "Horse",
+    "slots": [
+      {
+        "name": "saddle",
+        "index": 0
+      },
+      {
+        "name": "armor",
+        "index": 1
+      },
+      {
+        "name": "storage",
+        "index": 2,
+        "size": 15
+      }
+    ],
+    "openedWith": [
+      {
+        "type": "entity",
+        "id": 100
+      }
+    ]
+  },
+  {
+    "id": "minecraft:anvil",
+    "name": "Anvil",
+    "slots": [
+      {
+        "name": "tool",
+        "index": 0
+      },
+      {
+        "name": "combined",
+        "index": 1
+      },
+      {
+        "name": "result",
+        "index": 2
+      }
+    ],
+    "properties": [
+      "repair cost"
+    ]
+  },
+  {
+    "id": "minecraft:beacon",
+    "name": "Beacon",
+    "slots": [
+      {
+        "name": "input",
+        "index": 0
+      }
+    ],
+    "properties": [
+      "level",
+      "effect 1",
+      "effect 2"
+    ],
+    "openedWith": [
+      {
+        "type": "block",
+        "id": 138
+      }
+    ]
+  },
+  {
+    "id": "minecraft:brewing_stand",
+    "name": "Brewing Stand",
+    "slots": [
+      {
+        "name": "ingredient",
+        "index": 0
+      },
+      {
+        "name": "result",
+        "index": 1,
+        "size": 3
+      }
+    ],
+    "properties": [
+      "brew time"
+    ],
+    "openedWith": [
+      {
+        "type": "block",
+        "id": 117
+      }
+    ]
+  },
+  {
+    "id": "minecraft:chest",
+    "name": "Chest"
+  },
+  {
+    "id": "minecraft:container",
+    "name": "Container"
+  },
+  {
+    "id": "minecraft:crafting_table",
+    "name": "Workbench",
+    "slots": [
+      {
+        "name": "craft result",
+        "index": 0
+      },
+      {
+        "name": "craft grid",
+        "index": 1,
+        "size": 9
+      }
+    ]
+  },
+  {
+    "id": "minecraft:dispenser",
+    "name": "Dispenser"
+  },
+  {
+    "id": "minecraft:dropper",
+    "name": "Dropper"
+  },
+  {
+    "id": "minecraft:enchanting_table",
+    "name": "Enchantment Table",
+    "slots": [
+      {
+        "name": "enchanted",
+        "index": 0
+      },
+      {
+        "name": "lapis",
+        "index": 1
+      }
+    ],
+    "properties": [
+      "xp 1",
+      "xp 2",
+      "xp 3",
+      "seed",
+      "tooltip 1",
+      "tooltip 2",
+      "tooltip 3"
+    ]
+  },
+  {
+    "id": "minecraft:furnace",
+    "name": "Furnace",
+    "slots": [
+      {
+        "name": "smelted",
+        "index": 0
+      },
+      {
+        "name": "fuel",
+        "index": 1
+      },
+      {
+        "name": "result",
+        "index": 2
+      }
+    ],
+    "properties": [
+      "fuel",
+      "fuel max",
+      "progress",
+      "progress max"
+    ]
+  },
+  {
+    "id": "minecraft:hopper",
+    "name": "Hopper"
+  },
+  {
+    "id": "minecraft:villager",
+    "name": "NPC Trade",
+    "slots": [
+      {
+        "name": "give 1",
+        "index": 0
+      },
+      {
+        "name": "give 2",
+        "index": 1
+      },
+      {
+        "name": "take",
+        "index": 2
+      }
+    ]
+  }
+]

mc/data/minecraft-data/pc/1.16.1/effects.json

@@ -0,0 +1,200 @@
+[
+  {
+    "id": 1,
+    "name": "Speed",
+    "displayName": "Speed",
+    "type": "good"
+  },
+  {
+    "id": 2,
+    "name": "Slowness",
+    "displayName": "Slowness",
+    "type": "bad"
+  },
+  {
+    "id": 3,
+    "name": "Haste",
+    "displayName": "Haste",
+    "type": "good"
+  },
+  {
+    "id": 4,
+    "name": "MiningFatigue",
+    "displayName": "Mining Fatigue",
+    "type": "bad"
+  },
+  {
+    "id": 5,
+    "name": "Strength",
+    "displayName": "Strength",
+    "type": "good"
+  },
+  {
+    "id": 6,
+    "name": "InstantHealth",
+    "displayName": "Instant Health",
+    "type": "good"
+  },
+  {
+    "id": 7,
+    "name": "InstantDamage",
+    "displayName": "Instant Damage",
+    "type": "bad"
+  },
+  {
+    "id": 8,
+    "name": "JumpBoost",
+    "displayName": "Jump Boost",
+    "type": "good"
+  },
+  {
+    "id": 9,
+    "name": "Nausea",
+    "displayName": "Nausea",
+    "type": "bad"
+  },
+  {
+    "id": 10,
+    "name": "Regeneration",
+    "displayName": "Regeneration",
+    "type": "good"
+  },
+  {
+    "id": 11,
+    "name": "Resistance",
+    "displayName": "Resistance",
+    "type": "good"
+  },
+  {
+    "id": 12,
+    "name": "FireResistance",
+    "displayName": "Fire Resistance",
+    "type": "good"
+  },
+  {
+    "id": 13,
+    "name": "WaterBreathing",
+    "displayName": "Water Breathing",
+    "type": "good"
+  },
+  {
+    "id": 14,
+    "name": "Invisibility",
+    "displayName": "Invisibility",
+    "type": "good"
+  },
+  {
+    "id": 15,
+    "name": "Blindness",
+    "displayName": "Blindness",
+    "type": "bad"
+  },
+  {
+    "id": 16,
+    "name": "NightVision",
+    "displayName": "Night Vision",
+    "type": "good"
+  },
+  {
+    "id": 17,
+    "name": "Hunger",
+    "displayName": "Hunger",
+    "type": "bad"
+  },
+  {
+    "id": 18,
+    "name": "Weakness",
+    "displayName": "Weakness",
+    "type": "bad"
+  },
+  {
+    "id": 19,
+    "name": "Poison",
+    "displayName": "Poison",
+    "type": "bad"
+  },
+  {
+    "id": 20,
+    "name": "Wither",
+    "displayName": "Wither",
+    "type": "bad"
+  },
+  {
+    "id": 21,
+    "name": "HealthBoost",
+    "displayName": "Health Boost",
+    "type": "good"
+  },
+  {
+    "id": 22,
+    "name": "Absorption",
+    "displayName": "Absorption",
+    "type": "good"
+  },
+  {
+    "id": 23,
+    "name": "Saturation",
+    "displayName": "Saturation",
+    "type": "good"
+  },
+  {
+    "id": 24,
+    "name": "Glowing",
+    "displayName": "Glowing",
+    "type": "bad"
+  },
+  {
+    "id": 25,
+    "name": "Levitation",
+    "displayName": "Levitation",
+    "type": "bad"
+  },
+  {
+    "id": 26,
+    "name": "Luck",
+    "displayName": "Luck",
+    "type": "good"
+  },
+  {
+    "id": 27,
+    "name": "BadLuck",
+    "displayName": "Bad Luck",
+    "type": "bad"
+  },
+  {
+    "id": 28,
+    "name": "SlowFalling",
+    "displayName": "Slow Falling",
+    "type": "good"
+  },
+  {
+    "id": 29,
+    "name": "ConduitPower",
+    "displayName": "Conduit Power",
+    "type": "good"
+  },
+  {
+    "id": 30,
+    "name": "DolphinsGrace",
+    "displayName": "Dolphin's Grace",
+    "type": "good"
+  },
+  {
+    "id": 31,
+    "name": "DolphinsGrace",
+    "displayName": "Dolphin's Grace",
+    "type": "good"
+  },
+  {
+    "id": 32,
+    "name": "BadOmen",
+    "displayName": "Bad Omen",
+    "type": "good"
+  },
+  {
+    "id": 32,
+    "name": "HeroOfTheVillage",
+    "displayName": "Hero Of The Village",
+    "type": "good"
+  }
+]

mc/data/minecraft-data/pc/1.16.1/foods.json

@@ -0,0 +1,402 @@
+[
+  {
+    "id": 576,
+    "displayName": "Apple",
+    "name": "apple",
+    "stackSize": 64,
+    "foodPoints": 4,
+    "saturation": 2.4,
+    "effectiveQuality": 6.4,
+    "saturationRatio": 0.6
+  },
+  {
+    "id": 601,
+    "displayName": "Mushroom Stew",
+    "name": "mushroom_stew",
+    "stackSize": 1,
+    "foodPoints": 6,
+    "saturation": 7.2,
+    "effectiveQuality": 13.2,
+    "saturationRatio": 1.2
+  },
+  {
+    "id": 621,
+    "displayName": "Bread",
+    "name": "bread",
+    "stackSize": 64,
+    "foodPoints": 5,
+    "saturation": 6,
+    "effectiveQuality": 11,
+    "saturationRatio": 1.2
+  },
+  {
+    "id": 647,
+    "displayName": "Raw Porkchop",
+    "name": "porkchop",
+    "stackSize": 64,
+    "foodPoints": 3,
+    "saturation": 1.8,
+    "effectiveQuality": 4.8,
+    "saturationRatio": 0.6
+  },
+  {
+    "id": 648,
+    "displayName": "Cooked Porkchop",
+    "name": "cooked_porkchop",
+    "stackSize": 64,
+    "foodPoints": 8,
+    "saturation": 12.8,
+    "effectiveQuality": 20.8,
+    "saturationRatio": 1.6
+  },
+  {
+    "id": 650,
+    "displayName": "Golden Apple",
+    "name": "golden_apple",
+    "stackSize": 64,
+    "foodPoints": 4,
+    "saturation": 9.6,
+    "effectiveQuality": 13.6,
+    "saturationRatio": 2.4
+  },
+  {
+    "id": 651,
+    "displayName": "Enchanted Golden Apple",
+    "name": "enchanted_golden_apple",
+    "stackSize": 64,
+    "foodPoints": 4,
+    "saturation": 9.6,
+    "effectiveQuality": 13.6,
+    "saturationRatio": 2.4
+  },
+  {
+    "id": 687,
+    "displayName": "Raw Cod",
+    "name": "cod",
+    "stackSize": 64,
+    "foodPoints": 2,
+    "saturation": 0.4,
+    "effectiveQuality": 2.4,
+    "saturationRatio": 0.2
+  },
+  {
+    "id": 688,
+    "displayName": "Raw Salmon",
+    "name": "salmon",
+    "stackSize": 64,
+    "foodPoints": 2,
+    "saturation": 0.4,
+    "effectiveQuality": 2.4,
+    "saturationRatio": 0.2
+  },
+  {
+    "id": 689,
+    "displayName": "Tropical Fish",
+    "name": "tropical_fish",
+    "stackSize": 64,
+    "foodPoints": 1,
+    "saturation": 0.2,
+    "effectiveQuality": 1.2,
+    "saturationRatio": 0.2
+  },
+  {
+    "id": 690,
+    "displayName": "Pufferfish",
+    "name": "pufferfish",
+    "stackSize": 64,
+    "foodPoints": 1,
+    "saturation": 0.2,
+    "effectiveQuality": 1.2,
+    "saturationRatio": 0.2
+  },
+  {
+    "id": 691,
+    "displayName": "Cooked Cod",
+    "name": "cooked_cod",
+    "stackSize": 64,
+    "foodPoints": 5,
+    "saturation": 6,
+    "effectiveQuality": 11,
+    "saturationRatio": 1.2
+  },
+  {
+    "id": 692,
+    "displayName": "Cooked Salmon",
+    "name": "cooked_salmon",
+    "stackSize": 64,
+    "foodPoints": 6,
+    "saturation": 9.6,
+    "effectiveQuality": 15.6,
+    "saturationRatio": 1.5999999999999999
+  },
+  {
+    "id": 715,
+    "displayName": "Cake",
+    "name": "cake",
+    "stackSize": 1,
+    "foodPoints": 2,
+    "saturation": 0.4,
+    "effectiveQuality": 2.4,
+    "saturationRatio": 0.2
+  },
+  {
+    "id": 732,
+    "displayName": "Cookie",
+    "name": "cookie",
+    "stackSize": 64,
+    "foodPoints": 2,
+    "saturation": 0.4,
+    "effectiveQuality": 2.4,
+    "saturationRatio": 0.2
+  },
+  {
+    "id": 735,
+    "displayName": "Melon Slice",
+    "name": "melon_slice",
+    "stackSize": 64,
+    "foodPoints": 2,
+    "saturation": 1.2,
+    "effectiveQuality": 3.2,
+    "saturationRatio": 0.6
+  },
+  {
+    "id": 736,
+    "displayName": "Dried Kelp",
+    "name": "dried_kelp",
+    "stackSize": 64,
+    "foodPoints": 1,
+    "saturation": 0.6,
+    "effectiveQuality": 1.6,
+    "saturationRatio": 0.6
+  },
+  {
+    "id": 739,
+    "displayName": "Raw Beef",
+    "name": "beef",
+    "stackSize": 64,
+    "foodPoints": 3,
+    "saturation": 1.8,
+    "effectiveQuality": 4.8,
+    "saturationRatio": 0.6
+  },
+  {
+    "id": 740,
+    "displayName": "Steak",
+    "name": "cooked_beef",
+    "stackSize": 64,
+    "foodPoints": 8,
+    "saturation": 12.8,
+    "effectiveQuality": 20.8,
+    "saturationRatio": 1.6
+  },
+  {
+    "id": 741,
+    "displayName": "Raw Chicken",
+    "name": "chicken",
+    "stackSize": 64,
+    "foodPoints": 2,
+    "saturation": 1.2,
+    "effectiveQuality": 3.2,
+    "saturationRatio": 0.6
+  },
+  {
+    "id": 742,
+    "displayName": "Cooked Chicken",
+    "name": "cooked_chicken",
+    "stackSize": 64,
+    "foodPoints": 6,
+    "saturation": 7.2,
+    "effectiveQuality": 13.2,
+    "saturationRatio": 1.2
+  },
+  {
+    "id": 743,
+    "displayName": "Rotten Flesh",
+    "name": "rotten_flesh",
+    "stackSize": 64,
+    "foodPoints": 4,
+    "saturation": 0.8,
+    "effectiveQuality": 4.8,
+    "saturationRatio": 0.2
+  },
+  {
+    "id": 751,
+    "displayName": "Spider Eye",
+    "name": "spider_eye",
+    "stackSize": 64,
+    "foodPoints": 2,
+    "saturation": 3.2,
+    "effectiveQuality": 5.2,
+    "saturationRatio": 1.6
+  },
+  {
+    "id": 829,
+    "displayName": "Carrot",
+    "name": "carrot",
+    "stackSize": 64,
+    "foodPoints": 3,
+    "saturation": 3.6,
+    "effectiveQuality": 6.6,
+    "saturationRatio": 1.2
+  },
+  {
+    "id": 830,
+    "displayName": "Potato",
+    "name": "potato",
+    "stackSize": 64,
+    "foodPoints": 1,
+    "saturation": 0.6,
+    "effectiveQuality": 1.6,
+    "saturationRatio": 0.6
+  },
+  {
+    "id": 831,
+    "displayName": "Baked Potato",
+    "name": "baked_potato",
+    "stackSize": 64,
+    "foodPoints": 5,
+    "saturation": 6,
+    "effectiveQuality": 11,
+    "saturationRatio": 1.2
+  },
+  {
+    "id": 832,
+    "displayName": "Poisonous Potato",
+    "name": "poisonous_potato",
+    "stackSize": 64,
+    "foodPoints": 2,
+    "saturation": 1.2,
+    "effectiveQuality": 3.2,
+    "saturationRatio": 0.6
+  },
+  {
+    "id": 834,
+    "displayName": "Golden Carrot",
+    "name": "golden_carrot",
+    "stackSize": 64,
+    "foodPoints": 6,
+    "saturation": 14.4,
+    "effectiveQuality": 20.4,
+    "saturationRatio": 2.4
+  },
+  {
+    "id": 844,
+    "displayName": "Pumpkin Pie",
+    "name": "pumpkin_pie",
+    "stackSize": 64,
+    "foodPoints": 8,
+    "saturation": 4.8,
+    "effectiveQuality": 12.8,
+    "saturationRatio": 0.6
+  },
+  {
+    "id": 854,
+    "displayName": "Raw Rabbit",
+    "name": "rabbit",
+    "stackSize": 64,
+    "foodPoints": 3,
+    "saturation": 1.8,
+    "effectiveQuality": 4.8,
+    "saturationRatio": 0.6
+  },
+  {
+    "id": 855,
+    "displayName": "Cooked Rabbit",
+    "name": "cooked_rabbit",
+    "stackSize": 64,
+    "foodPoints": 5,
+    "saturation": 6,
+    "effectiveQuality": 11,
+    "saturationRatio": 1.2
+  },
+  {
+    "id": 856,
+    "displayName": "Rabbit Stew",
+    "name": "rabbit_stew",
+    "stackSize": 1,
+    "foodPoints": 10,
+    "saturation": 12,
+    "effectiveQuality": 22,
+    "saturationRatio": 1.2
+  },
+  {
+    "id": 867,
+    "displayName": "Raw Mutton",
+    "name": "mutton",
+    "stackSize": 64,
+    "foodPoints": 2,
+    "saturation": 1.2,
+    "effectiveQuality": 3.2,
+    "saturationRatio": 0.6
+  },
+  {
+    "id": 868,
+    "displayName": "Cooked Mutton",
+    "name": "cooked_mutton",
+    "stackSize": 64,
+    "foodPoints": 6,
+    "saturation": 9.6,
+    "effectiveQuality": 15.6,
+    "saturationRatio": 1.5999999999999999
+  },
+  {
+    "id": 886,
+    "displayName": "Chorus Fruit",
+    "name": "chorus_fruit",
+    "stackSize": 64,
+    "foodPoints": 4,
+    "saturation": 2.4,
+    "effectiveQuality": 6.4,
+    "saturationRatio": 0.6
+  },
+  {
+    "id": 888,
+    "displayName": "Beetroot",
+    "name": "beetroot",
+    "stackSize": 64,
+    "foodPoints": 1,
+    "saturation": 1.2,
+    "effectiveQuality": 2.2,
+    "saturationRatio": 1.2
+  },
+  {
+    "id": 890,
+    "displayName": "Beetroot Soup",
+    "name": "beetroot_soup",
+    "stackSize": 1,
+    "foodPoints": 6,
+    "saturation": 7.2,
+    "effectiveQuality": 13.2,
+    "saturationRatio": 1.2
+  },
+  {
+    "id": 926,
+    "displayName": "Suspicious Stew",
+    "name": "suspicious_stew",
+    "stackSize": 1,
+    "foodPoints": 6,
+    "saturation": 7.2,
+    "effectiveQuality": 13.2,
+    "saturationRatio": 1.2
+  },
+  {
+    "id": 947,
+    "displayName": "Sweet Berries",
+    "name": "sweet_berries",
+    "stackSize": 64,
+    "foodPoints": 2,
+    "saturation": 0.4,
+    "effectiveQuality": 2.4,
+    "saturationRatio": 0.2
+  },
+  {
+    "id": 954,
+    "displayName": "Honey Bottle",
+    "name": "honey_bottle",
+    "stackSize": 16,
+    "foodPoints": 6,
+    "saturation": 1.2,
+    "effectiveQuality": 7.2,
+    "saturationRatio": 0.19999999999999998
+  }
+]

mc/data/minecraft-data/pc/1.16.1/instruments.json

@@ -0,0 +1,66 @@
+[
+  {
+    "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"
+  }
+]

mc/data/minecraft-data/pc/1.16.1/materials.json

@@ -0,0 +1,69 @@
+{
+  "rock": {
+    "573": 6,
+    "589": 2,
+    "593": 4,
+    "597": 8,
+    "608": 9,
+    "604": 12
+  },
+  "wood": {
+    "574": 6,
+    "590": 2,
+    "594": 4,
+    "598": 8,
+    "609": 9,
+    "605": 12
+  },
+  "plant": {
+    "574": 6,
+    "586": 1.5,
+    "587": 1.5,
+    "590": 2,
+    "591": 1.5,
+    "594": 4,
+    "595": 1.5,
+    "598": 8,
+    "609": 9,
+    "606": 1.5,
+    "602": 1.5,
+    "605": 12
+  },
+  "melon": {
+    "586": 1.5,
+    "587": 1.5,
+    "591": 1.5,
+    "595": 1.5,
+    "606": 1.5,
+    "602": 1.5
+  },
+  "leaves": {
+    "586": 1.5,
+    "587": 1.5,
+    "591": 1.5,
+    "595": 1.5,
+    "602": 1.5,
+    "606": 1.5,
+    "734": 6
+  },
+  "dirt": {
+    "572": 6,
+    "588": 2,
+    "592": 4,
+    "596": 8,
+    "607": 9,
+    "603": 12
+  },
+  "web": {
+    "586": 15,
+    "587": 15,
+    "591": 15,
+    "595": 15,
+    "602": 15,
+    "606": 15,
+    "734": 15
+  },
+  "wool": {
+    "734": 4.8
+  }
+}

mc/data/minecraft-data/pc/1.16.1/version.json

@@ -0,0 +1,5 @@
+{
+  "minecraftVersion": "1.16.1",
+  "version": 736,
+  "majorVersion": "1.16"
+}

mc/data/minecraft-data/pc/1.16.1/windows.json

@@ -0,0 +1,229 @@
+[
+  {
+    "id": "",
+    "name": "Player",
+    "slots": [
+      {
+        "name": "craft result",
+        "index": 0
+      },
+      {
+        "name": "craft grid",
+        "index": 1,
+        "size": 4
+      },
+      {
+        "name": "armor",
+        "index": 5,
+        "size": 4
+      },
+      {
+        "name": "helmet",
+        "index": 5
+      },
+      {
+        "name": "chestplate",
+        "index": 6
+      },
+      {
+        "name": "leggings",
+        "index": 7
+      },
+      {
+        "name": "boots",
+        "index": 8
+      }
+    ]
+  },
+  {
+    "id": "EntityHorse",
+    "name": "Horse",
+    "slots": [
+      {
+        "name": "saddle",
+        "index": 0
+      },
+      {
+        "name": "armor",
+        "index": 1
+      },
+      {
+        "name": "storage",
+        "index": 2,
+        "size": 15
+      }
+    ],
+    "openedWith": [
+      {
+        "type": "entity",
+        "id": 100
+      }
+    ]
+  },
+  {
+    "id": "minecraft:anvil",
+    "name": "Anvil",
+    "slots": [
+      {
+        "name": "tool",
+        "index": 0
+      },
+      {
+        "name": "combined",
+        "index": 1
+      },
+      {
+        "name": "result",
+        "index": 2
+      }
+    ],
+    "properties": [
+      "repair cost"
+    ]
+  },
+  {
+    "id": "minecraft:beacon",
+    "name": "Beacon",
+    "slots": [
+      {
+        "name": "input",
+        "index": 0
+      }
+    ],
+    "properties": [
+      "level",
+      "effect 1",
+      "effect 2"
+    ],
+    "openedWith": [
+      {
+        "type": "block",
+        "id": 138
+      }
+    ]
+  },
+  {
+    "id": "minecraft:brewing_stand",
+    "name": "Brewing Stand",
+    "slots": [
+      {
+        "name": "ingredient",
+        "index": 0
+      },
+      {
+        "name": "result",
+        "index": 1,
+        "size": 3
+      }
+    ],
+    "properties": [
+      "brew time"
+    ],
+    "openedWith": [
+      {
+        "type": "block",
+        "id": 117
+      }
+    ]
+  },
+  {
+    "id": "minecraft:chest",
+    "name": "Chest"
+  },
+  {
+    "id": "minecraft:container",
+    "name": "Container"
+  },
+  {
+    "id": "minecraft:crafting_table",
+    "name": "Workbench",
+    "slots": [
+      {
+        "name": "craft result",
+        "index": 0
+      },
+      {
+        "name": "craft grid",
+        "index": 1,
+        "size": 9
+      }
+    ]
+  },
+  {
+    "id": "minecraft:dispenser",
+    "name": "Dispenser"
+  },
+  {
+    "id": "minecraft:dropper",
+    "name": "Dropper"
+  },
+  {
+    "id": "minecraft:enchanting_table",
+    "name": "Enchantment Table",
+    "slots": [
+      {
+        "name": "enchanted",
+        "index": 0
+      },
+      {
+        "name": "lapis",
+        "index": 1
+      }
+    ],
+    "properties": [
+      "xp 1",
+      "xp 2",
+      "xp 3",
+      "seed",
+      "tooltip 1",
+      "tooltip 2",
+      "tooltip 3"
+    ]
+  },
+  {
+    "id": "minecraft:furnace",
+    "name": "Furnace",
+    "slots": [
+      {
+        "name": "smelted",
+        "index": 0
+      },
+      {
+        "name": "fuel",
+        "index": 1
+      },
+      {
+        "name": "result",
+        "index": 2
+      }
+    ],
+    "properties": [
+      "fuel",
+      "fuel max",
+      "progress",
+      "progress max"
+    ]
+  },
+  {
+    "id": "minecraft:hopper",
+    "name": "Hopper"
+  },
+  {
+    "id": "minecraft:villager",
+    "name": "NPC Trade",
+    "slots": [
+      {
+        "name": "give 1",
+        "index": 0
+      },
+      {
+        "name": "give 2",
+        "index": 1
+      },
+      {
+        "name": "take",
+        "index": 2
+      }
+    ]
+  }
+]