Add DowngradeLevelChunkPacket

go.mod

@@ -1,11 +1,9 @@
 module github.com/akmalfairuz/legacy-version
 
-go 1.24
+go 1.24.0
-
-toolchain go1.24.0
 
 require (
-	github.com/df-mc/dragonfly v0.10.5
+	github.com/df-mc/dragonfly v0.10.6-0.20250817203556-60bcf6b7432b
 	github.com/df-mc/worldupgrader v1.0.19
 	github.com/go-gl/mathgl v1.2.0
 	github.com/google/uuid v1.6.0
@@ -14,13 +12,14 @@ require (
 	github.com/samber/lo v1.49.1
 	github.com/sandertv/gophertunnel v1.49.0
 	github.com/segmentio/fasthash v1.0.3
-	golang.org/x/exp v0.0.0-20250718183923-645b1fa84792
+	golang.org/x/exp v0.0.0-20250819193227-8b4c13bb791b
 	golang.org/x/image v0.25.0
 	golang.org/x/oauth2 v0.30.0
 )
 
 require (
 	github.com/brentp/intintmap v0.0.0-20190211203843-30dc0ade9af9 // indirect
+	github.com/cespare/xxhash/v2 v2.3.0 // indirect
 	github.com/df-mc/goleveldb v1.1.9 // indirect
 	github.com/go-jose/go-jose/v4 v4.1.2 // indirect
 	github.com/golang/snappy v1.0.0 // indirect
@@ -28,7 +27,7 @@ require (
 	github.com/muhammadmuzzammil1998/jsonc v1.0.0 // indirect
 	github.com/sandertv/go-raknet v1.14.3-0.20250305181847-6af3e95113d6 // indirect
 	golang.org/x/crypto v0.41.0 // indirect
-	golang.org/x/mod v0.26.0 // indirect
+	golang.org/x/mod v0.27.0 // indirect
 	golang.org/x/net v0.43.0 // indirect
 	golang.org/x/text v0.28.0 // indirect
 )

go.sum

@@ -14,6 +14,8 @@ github.com/df-mc/dragonfly v0.10.3 h1:t0mxRvjjgG8uBevqqzejJVL2M6obi6RYePMTPDlXo7
 github.com/df-mc/dragonfly v0.10.3/go.mod h1:pO7nuyRKV50ZVZzB7AhTMU/0p4cvk1/yCu43vFqAzcI=
 github.com/df-mc/dragonfly v0.10.5 h1:vn3Mwh7vWPDtIdss4QEOP8vSZGHRAjyLvrOEM5mEUI0=
 github.com/df-mc/dragonfly v0.10.5/go.mod h1:/KjoqvIe5+ZxuFUPSRey9UzQS3GkTgAyTH0jTYFMs/g=
+github.com/df-mc/dragonfly v0.10.6-0.20250817203556-60bcf6b7432b h1:i3nfD4EFsuIZJfod6W9/lovMw8rzwCjGHRVKOBu1nXo=
+github.com/df-mc/dragonfly v0.10.6-0.20250817203556-60bcf6b7432b/go.mod h1:1B3NiEGWj0S9U4QlsL58HPvnmgPlaFCm/pCVWdnrMH0=
 github.com/df-mc/goleveldb v1.1.9 h1:ihdosZyy5jkQKrxucTQmN90jq/2lUwQnJZjIYIC/9YU=
 github.com/df-mc/goleveldb v1.1.9/go.mod h1:+NHCup03Sci5q84APIA21z3iPZCuk6m6ABtg4nANCSk=
 github.com/df-mc/worldupgrader v1.0.18 h1:Q34X9ID/hGuDyj9oiq+dpyjOaJdNxhVmVUepf/EPYDA=
@@ -96,6 +98,8 @@ golang.org/x/exp v0.0.0-20250305212735-054e65f0b394 h1:nDVHiLt8aIbd/VzvPWN6kSOPE
 golang.org/x/exp v0.0.0-20250305212735-054e65f0b394/go.mod h1:sIifuuw/Yco/y6yb6+bDNfyeQ/MdPUy/hKEMYQV17cM=
 golang.org/x/exp v0.0.0-20250718183923-645b1fa84792 h1:R9PFI6EUdfVKgwKjZef7QIwGcBKu86OEFpJ9nUEP2l4=
 golang.org/x/exp v0.0.0-20250718183923-645b1fa84792/go.mod h1:A+z0yzpGtvnG90cToK5n2tu8UJVP2XUATh+r+sfOOOc=
+golang.org/x/exp v0.0.0-20250819193227-8b4c13bb791b h1:DXr+pvt3nC887026GRP39Ej11UATqWDmWuS99x26cD0=
+golang.org/x/exp v0.0.0-20250819193227-8b4c13bb791b/go.mod h1:4QTo5u+SEIbbKW1RacMZq1YEfOBqeXa19JeshGi+zc4=
 golang.org/x/image v0.21.0 h1:c5qV36ajHpdj4Qi0GnE0jUc/yuo33OLFaa0d+crTD5s=
 golang.org/x/image v0.21.0/go.mod h1:vUbsLavqK/W303ZroQQVKQ+Af3Yl6Uz1Ppu5J/cLz78=
 golang.org/x/image v0.25.0 h1:Y6uW6rH1y5y/LK1J8BPWZtr6yZ7hrsy6hFrXjgsc2fQ=
@@ -108,6 +112,8 @@ golang.org/x/mod v0.25.0 h1:n7a+ZbQKQA/Ysbyb0/6IbB1H/X41mKgbhfv7AfG/44w=
 golang.org/x/mod v0.25.0/go.mod h1:IXM97Txy2VM4PJ3gI61r1YEk/gAj6zAHN3AdZt6S9Ww=
 golang.org/x/mod v0.26.0 h1:EGMPT//Ezu+ylkCijjPc+f4Aih7sZvaAr+O3EHBxvZg=
 golang.org/x/mod v0.26.0/go.mod h1:/j6NAhSk8iQ723BGAUyoAcn7SlD7s15Dp9Nd/SfeaFQ=
+golang.org/x/mod v0.27.0 h1:kb+q2PyFnEADO2IEF935ehFUXlWiNjJWtRNgBLSfbxQ=
+golang.org/x/mod v0.27.0/go.mod h1:rWI627Fq0DEoudcK+MBkNkCe0EetEaDSwJJkCcjpazc=
 golang.org/x/net v0.0.0-20180906233101-161cd47e91fd/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
 golang.org/x/net v0.38.0 h1:vRMAPTMaeGqVhG5QyLJHqNDwecKTomGeqbnfZyKlBI8=
 golang.org/x/net v0.38.0/go.mod h1:ivrbrMbzFq5J41QOQh0siUuly180yBYtLp+CKbEaFx8=

legacyver/all.go

@@ -1,7 +1,20 @@
 package legacyver
 
 import (
+	"fmt"
+	"sync"
+
+	"github.com/akmalfairuz/legacy-version/internal/chunk"
+	"github.com/akmalfairuz/legacy-version/mapping"
 	"github.com/sandertv/gophertunnel/minecraft"
+	"github.com/sandertv/gophertunnel/minecraft/protocol/packet"
+)
+
+var (
+	EnableChunkTranslation = true
+
+	blockTranslatorsMu sync.RWMutex
+	blockTranslators   map[int32]BlockTranslator
 )
 
 // All returns a slice of all legacy protocol versions that are supported. dragonflyMapping
@@ -24,3 +37,37 @@ func All(dragonflyMapping bool) []minecraft.Protocol {
 		New649(dragonflyMapping),
 	}
 }
+
+// lookupOrCreateBlockTranslator looks up a block translator for the given protocol version.
+func lookupOrCreateBlockTranslator(protocolVersion, blockVersion int32, blockStateData []byte) BlockTranslator {
+	blockTranslatorsMu.RLock()
+	if translator, ok := blockTranslators[protocolVersion]; ok {
+		blockTranslatorsMu.RUnlock()
+		return translator
+	}
+	blockTranslatorsMu.RUnlock()
+
+	blockTranslatorsMu.Lock()
+	defer blockTranslatorsMu.Unlock()
+
+	if translator, ok := blockTranslators[protocolVersion]; ok {
+		return translator
+	}
+
+	blockMapping := mapping.NewBlockMapping(blockStateData)
+	ret := NewBlockTranslator(blockMapping, blockMappingLatest, chunk.NewNetworkPersistentEncoding(blockMapping, blockVersion), chunk.NewBlockPaletteEncoding(blockMapping, blockVersion), false)
+	blockTranslators[protocolVersion] = ret
+	return ret
+}
+
+// DowngradeLevelChunkPacket downgrades the given level chunk packet to the specified protocol version.
+func DowngradeLevelChunkPacket(protocolVersion int32, pk *packet.LevelChunk) error {
+	blockTranslatorsMu.RLock()
+	translator, ok := blockTranslators[protocolVersion]
+	blockTranslatorsMu.RUnlock()
+	if !ok {
+		return fmt.Errorf("no block translator found for protocol version %d", protocolVersion)
+	}
+
+	return translator.DowngradeLevelChunk(pk)
+}

legacyver/block_translator.go

@@ -4,7 +4,6 @@ import (
 	"bytes"
 	_ "embed"
 
-	"github.com/akmalfairuz/legacy-version/internal"
 	"github.com/akmalfairuz/legacy-version/internal/chunk"
 	"github.com/akmalfairuz/legacy-version/mapping"
 	"github.com/df-mc/dragonfly/server/block/cube"
@@ -31,6 +30,10 @@ type BlockTranslator interface {
 	DowngradeBlockPackets([]packet.Packet, *minecraft.Conn) (result []packet.Packet)
 	// UpgradeBlockPackets upgrades the input block packets to the latest block packets.
 	UpgradeBlockPackets([]packet.Packet, *minecraft.Conn) (result []packet.Packet)
+	// DowngradeLevelChunk downgrades the given LevelChunk packet to a legacy format.
+	DowngradeLevelChunk(*packet.LevelChunk) error
+	// BlockMapping returns the block mapping used by this translator.
+	BlockMapping() mapping.Block
 }
 
 type DefaultBlockTranslator struct {
@@ -45,18 +48,18 @@ func NewBlockTranslator(mapping mapping.Block, latestMapping mapping.Block, pse
 	return &DefaultBlockTranslator{mapping: mapping, latest: latestMapping, pse: pse, pe: pe, oldFormat: oldFormat}
 }
 
-func (t *DefaultBlockTranslator) downgradeLevelChunkPacket(pk *packet.LevelChunk) error {
+func (t *DefaultBlockTranslator) BlockMapping() mapping.Block {
+	return t.mapping
+}
+
+func (t *DefaultBlockTranslator) DowngradeLevelChunk(pk *packet.LevelChunk) error {
 	count := int(pk.SubChunkCount)
 	if count == protocol.SubChunkRequestModeLimitless || count == protocol.SubChunkRequestModeLimited {
 		return nil
 	}
 
 	buf := bytes.NewBuffer(pk.RawPayload)
-	writeBuf := internal.BufferPool.Get().(*bytes.Buffer)
+	writeBuf := bytes.NewBuffer(nil)
-	defer func() {
-		writeBuf.Reset()
-		internal.BufferPool.Put(writeBuf)
-	}()
 	if !pk.CacheEnabled {
 		c, err := chunk.NetworkDecode(t.latest.Air(), buf, count, false, world.Overworld.Range(), LatestNetworkPersistentEncoding, LatestBlockPaletteEncoding)
 		if err != nil {
@@ -76,12 +79,12 @@ func (t *DefaultBlockTranslator) downgradeLevelChunkPacket(pk *packet.LevelChunk
 	countBorder, err := buf.ReadByte()
 	if err != nil {
 		pk.RawPayload = append(writeBuf.Bytes(), safeBytes...)
-		return nil
+		return err
 	}
 	borderBytes := make([]byte, countBorder)
 	if _, err = buf.Read(borderBytes); err != nil {
 		pk.RawPayload = append(writeBuf.Bytes(), safeBytes...)
-		return nil
+		return err
 	}
 	writeBuf.WriteByte(countBorder)
 	writeBuf.Write(borderBytes)
@@ -107,8 +110,17 @@ func (t *DefaultBlockTranslator) DowngradeBlockPackets(pks []packet.Packet, conn
 	for _, pk := range pks {
 		switch pk := pk.(type) {
 		case *packet.LevelChunk:
-			_ = t.downgradeLevelChunkPacket(pk)
+			if !EnableChunkTranslation {
+				break
+			}
+			if err := t.DowngradeLevelChunk(pk); err != nil {
+				//fmt.Println(err)
+				break
+			}
 		case *packet.SubChunk:
+			if !EnableChunkTranslation {
+				break
+			}
 			r := world.Overworld.Range()
 			if t.oldFormat {
 				r = cube.Range{0, 255}
@@ -147,25 +159,27 @@ func (t *DefaultBlockTranslator) DowngradeBlockPackets(pks []packet.Packet, conn
 					pk.SubChunkEntries[i] = entry
 				}
 			}
-		case *packet.ClientCacheMissResponse:
+		//case *packet.ClientCacheMissResponse:
-			r := world.Overworld.Range()
+		//	if EnableChunkTranslation {
-			if t.oldFormat {
+		//		r := world.Overworld.Range()
-				r = cube.Range{0, 255}
+		//		if t.oldFormat {
-			}
+		//			r = cube.Range{0, 255}
-
+		//		}
-			for i, blob := range pk.Blobs {
+		//
-				buf := bytes.NewBuffer(blob.Payload)
+		//		for i, blob := range pk.Blobs {
-				ind := byte(0)
+		//			buf := bytes.NewBuffer(blob.Payload)
-				subChunk, err := chunk.DecodeSubChunk(t.latest.Air(), r, buf, &ind, chunk.NetworkEncoding, LatestNetworkPersistentEncoding, LatestBlockPaletteEncoding)
+		//			ind := byte(0)
-				if err != nil {
+		//			subChunk, err := chunk.DecodeSubChunk(t.latest.Air(), r, buf, &ind, chunk.NetworkEncoding, LatestNetworkPersistentEncoding, LatestBlockPaletteEncoding)
-					// Has a possibility to be a biome, ignore then
+		//			if err != nil {
-					continue
+		//				// Has a possibility to be a biome, ignore then
-				}
+		//				continue
-				t.DowngradeSubChunk(subChunk)
+		//			}
-
+		//			t.DowngradeSubChunk(subChunk)
-				blob.Payload = append(chunk.EncodeSubChunk(subChunk, chunk.NetworkEncoding, t.pe, chunk.SubChunkVersion9, r, int(ind)), buf.Bytes()...)
+		//
-				pk.Blobs[i] = blob
+		//			blob.Payload = append(chunk.EncodeSubChunk(subChunk, chunk.NetworkEncoding, t.pe, chunk.SubChunkVersion9, r, int(ind)), buf.Bytes()...)
-			}
+		//			pk.Blobs[i] = blob
+		//		}
+		//	}
 		case *packet.UpdateSubChunkBlocks:
 			for i, block := range pk.Blocks {
 				block.BlockRuntimeID = t.DowngradeBlockRuntimeID(block.BlockRuntimeID)

legacyver/v649.go

@@ -3,7 +3,6 @@ package legacyver
 import (
 	_ "embed"
 
-	"github.com/akmalfairuz/legacy-version/internal/chunk"
 	"github.com/akmalfairuz/legacy-version/legacyver/proto"
 	"github.com/akmalfairuz/legacy-version/mapping"
 )
@@ -25,12 +24,11 @@ var (
 // New649 ...
 func New649(dragonflyMapping bool) *Protocol {
 	itemMapping := mapping.NewItemMapping(requiredItemList649, ItemVersion649)
-	blockMapping := mapping.NewBlockMapping(blockStateData649)
+	blockTranslator := lookupOrCreateBlockTranslator(649, BlockVersion649, blockStateData649)
-
 	return &Protocol{
 		ver:             "1.20.60",
 		id:              proto.ID649,
-		blockTranslator: NewBlockTranslator(blockMapping, blockMappingLatest, chunk.NewNetworkPersistentEncoding(blockMapping, BlockVersion649), chunk.NewBlockPaletteEncoding(blockMapping, BlockVersion649), false),
+		blockTranslator: blockTranslator,
-		itemTranslator:  NewItemTranslator(itemMapping, itemMappingLatest(dragonflyMapping), blockMapping, blockMappingLatest),
+		itemTranslator:  NewItemTranslator(itemMapping, itemMappingLatest(dragonflyMapping), blockTranslator.BlockMapping(), blockMappingLatest),
 	}
 }

legacyver/v662.go

@@ -3,7 +3,6 @@ package legacyver
 import (
 	_ "embed"
 
-	"github.com/akmalfairuz/legacy-version/internal/chunk"
 	"github.com/akmalfairuz/legacy-version/legacyver/proto"
 	"github.com/akmalfairuz/legacy-version/mapping"
 )
@@ -25,12 +24,11 @@ var (
 // New662 ...
 func New662(dragonflyMapping bool) *Protocol {
 	itemMapping := mapping.NewItemMapping(requiredItemList662, ItemVersion662)
-	blockMapping := mapping.NewBlockMapping(blockStateData662)
+	blockTranslator := lookupOrCreateBlockTranslator(662, BlockVersion662, blockStateData662)
-
 	return &Protocol{
 		ver:             "1.20.70",
 		id:              proto.ID662,
-		blockTranslator: NewBlockTranslator(blockMapping, blockMappingLatest, chunk.NewNetworkPersistentEncoding(blockMapping, BlockVersion662), chunk.NewBlockPaletteEncoding(blockMapping, BlockVersion662), false),
+		blockTranslator: blockTranslator,
-		itemTranslator:  NewItemTranslator(itemMapping, itemMappingLatest(dragonflyMapping), blockMapping, blockMappingLatest),
+		itemTranslator:  NewItemTranslator(itemMapping, itemMappingLatest(dragonflyMapping), blockTranslator.BlockMapping(), blockMappingLatest),
 	}
 }

legacyver/v671.go

@@ -3,7 +3,6 @@ package legacyver
 import (
 	_ "embed"
 
-	"github.com/akmalfairuz/legacy-version/internal/chunk"
 	"github.com/akmalfairuz/legacy-version/legacyver/proto"
 	"github.com/akmalfairuz/legacy-version/mapping"
 )
@@ -25,12 +24,11 @@ var (
 // New671 ...
 func New671(dragonflyMapping bool) *Protocol {
 	itemMapping := mapping.NewItemMapping(requiredItemList671, ItemVersion671)
-	blockMapping := mapping.NewBlockMapping(blockStateData671)
+	blockTranslator := lookupOrCreateBlockTranslator(671, BlockVersion671, blockStateData671)
-
 	return &Protocol{
 		ver:             "1.20.80",
 		id:              proto.ID671,
-		blockTranslator: NewBlockTranslator(blockMapping, blockMappingLatest, chunk.NewNetworkPersistentEncoding(blockMapping, BlockVersion671), chunk.NewBlockPaletteEncoding(blockMapping, BlockVersion671), false),
+		blockTranslator: blockTranslator,
-		itemTranslator:  NewItemTranslator(itemMapping, itemMappingLatest(dragonflyMapping), blockMapping, blockMappingLatest),
+		itemTranslator:  NewItemTranslator(itemMapping, itemMappingLatest(dragonflyMapping), blockTranslator.BlockMapping(), blockMappingLatest),
 	}
 }

legacyver/v685.go

@@ -3,7 +3,6 @@ package legacyver
 import (
 	_ "embed"
 
-	"github.com/akmalfairuz/legacy-version/internal/chunk"
 	"github.com/akmalfairuz/legacy-version/legacyver/proto"
 	"github.com/akmalfairuz/legacy-version/mapping"
 )
@@ -18,12 +17,11 @@ const (
 // New685 uses same data as 686
 func New685(dragonflyMapping bool) *Protocol {
 	itemMapping := mapping.NewItemMapping(requiredItemList686, ItemVersion685)
-	blockMapping := mapping.NewBlockMapping(blockStateData686)
+	blockTranslator := lookupOrCreateBlockTranslator(685, BlockVersion685, blockStateData686)
-
 	return &Protocol{
 		ver:             "1.21.0",
 		id:              proto.ID685,
-		blockTranslator: NewBlockTranslator(blockMapping, blockMappingLatest, chunk.NewNetworkPersistentEncoding(blockMapping, BlockVersion685), chunk.NewBlockPaletteEncoding(blockMapping, BlockVersion685), false),
+		blockTranslator: blockTranslator,
-		itemTranslator:  NewItemTranslator(itemMapping, itemMappingLatest(dragonflyMapping), blockMapping, blockMappingLatest),
+		itemTranslator:  NewItemTranslator(itemMapping, itemMappingLatest(dragonflyMapping), blockTranslator.BlockMapping(), blockMappingLatest),
 	}
 }

legacyver/v686.go

@@ -3,7 +3,6 @@ package legacyver
 import (
 	_ "embed"
 
-	"github.com/akmalfairuz/legacy-version/internal/chunk"
 	"github.com/akmalfairuz/legacy-version/legacyver/proto"
 	"github.com/akmalfairuz/legacy-version/mapping"
 )
@@ -24,12 +23,11 @@ var (
 
 func New686(dragonflyMapping bool) *Protocol {
 	itemMapping := mapping.NewItemMapping(requiredItemList686, ItemVersion686)
-	blockMapping := mapping.NewBlockMapping(blockStateData686)
+	blockTranslator := lookupOrCreateBlockTranslator(686, BlockVersion686, blockStateData686)
-
 	return &Protocol{
 		ver:             "1.21.2",
 		id:              proto.ID686,
-		blockTranslator: NewBlockTranslator(blockMapping, blockMappingLatest, chunk.NewNetworkPersistentEncoding(blockMapping, BlockVersion686), chunk.NewBlockPaletteEncoding(blockMapping, BlockVersion686), false),
+		blockTranslator: blockTranslator,
-		itemTranslator:  NewItemTranslator(itemMapping, itemMappingLatest(dragonflyMapping), blockMapping, blockMappingLatest),
+		itemTranslator:  NewItemTranslator(itemMapping, itemMappingLatest(dragonflyMapping), blockTranslator.BlockMapping(), blockMappingLatest),
 	}
 }

legacyver/v712.go

@@ -3,7 +3,6 @@ package legacyver
 import (
 	_ "embed"
 
-	"github.com/akmalfairuz/legacy-version/internal/chunk"
 	"github.com/akmalfairuz/legacy-version/legacyver/proto"
 	"github.com/akmalfairuz/legacy-version/mapping"
 )
@@ -24,12 +23,11 @@ var (
 
 func New712(dragonflyMapping bool) *Protocol {
 	itemMapping := mapping.NewItemMapping(requiredItemList712, ItemVersion712)
-	blockMapping := mapping.NewBlockMapping(blockStateData712)
+	blockTranslator := lookupOrCreateBlockTranslator(712, BlockVersion712, blockStateData712)
-
 	return &Protocol{
 		ver:             "1.21.20",
 		id:              proto.ID712,
-		blockTranslator: NewBlockTranslator(blockMapping, blockMappingLatest, chunk.NewNetworkPersistentEncoding(blockMapping, BlockVersion712), chunk.NewBlockPaletteEncoding(blockMapping, BlockVersion712), false),
+		blockTranslator: blockTranslator,
-		itemTranslator:  NewItemTranslator(itemMapping, itemMappingLatest(dragonflyMapping), blockMapping, blockMappingLatest),
+		itemTranslator:  NewItemTranslator(itemMapping, itemMappingLatest(dragonflyMapping), blockTranslator.BlockMapping(), blockMappingLatest),
 	}
 }

legacyver/v729.go

@@ -3,7 +3,6 @@ package legacyver
 import (
 	_ "embed"
 
-	"github.com/akmalfairuz/legacy-version/internal/chunk"
 	"github.com/akmalfairuz/legacy-version/legacyver/proto"
 	"github.com/akmalfairuz/legacy-version/mapping"
 )
@@ -24,12 +23,11 @@ var (
 
 func New729(dragonflyMapping bool) *Protocol {
 	itemMapping := mapping.NewItemMapping(requiredItemList729, ItemVersion729)
-	blockMapping := mapping.NewBlockMapping(blockStateData729)
+	blockTranslator := lookupOrCreateBlockTranslator(729, BlockVersion729, blockStateData729)
-
 	return &Protocol{
 		ver:             "1.21.30",
 		id:              proto.ID729,
-		blockTranslator: NewBlockTranslator(blockMapping, blockMappingLatest, chunk.NewNetworkPersistentEncoding(blockMapping, BlockVersion729), chunk.NewBlockPaletteEncoding(blockMapping, BlockVersion729), false),
+		blockTranslator: blockTranslator,
-		itemTranslator:  NewItemTranslator(itemMapping, itemMappingLatest(dragonflyMapping), blockMapping, blockMappingLatest),
+		itemTranslator:  NewItemTranslator(itemMapping, itemMappingLatest(dragonflyMapping), blockTranslator.BlockMapping(), blockMappingLatest),
 	}
 }

legacyver/v748.go

@@ -3,7 +3,6 @@ package legacyver
 import (
 	_ "embed"
 
-	"github.com/akmalfairuz/legacy-version/internal/chunk"
 	"github.com/akmalfairuz/legacy-version/legacyver/proto"
 	"github.com/akmalfairuz/legacy-version/mapping"
 )
@@ -24,12 +23,11 @@ var (
 
 func New748(dragonflyMapping bool) *Protocol {
 	itemMapping := mapping.NewItemMapping(requiredItemList748, ItemVersion748)
-	blockMapping := mapping.NewBlockMapping(blockStateData748)
+	blockTranslator := lookupOrCreateBlockTranslator(748, BlockVersion748, blockStateData748)
-
 	return &Protocol{
 		ver:             "1.21.40",
 		id:              proto.ID748,
-		blockTranslator: NewBlockTranslator(blockMapping, blockMappingLatest, chunk.NewNetworkPersistentEncoding(blockMapping, BlockVersion748), chunk.NewBlockPaletteEncoding(blockMapping, BlockVersion748), false),
+		blockTranslator: blockTranslator,
-		itemTranslator:  NewItemTranslator(itemMapping, itemMappingLatest(dragonflyMapping), blockMapping, blockMappingLatest),
+		itemTranslator:  NewItemTranslator(itemMapping, itemMappingLatest(dragonflyMapping), blockTranslator.BlockMapping(), blockMappingLatest),
 	}
 }

legacyver/v766.go

@@ -3,7 +3,6 @@ package legacyver
 import (
 	_ "embed"
 
-	"github.com/akmalfairuz/legacy-version/internal/chunk"
 	"github.com/akmalfairuz/legacy-version/legacyver/proto"
 	"github.com/akmalfairuz/legacy-version/mapping"
 )
@@ -24,11 +23,11 @@ var (
 
 func New766(dragonflyMapping bool) *Protocol {
 	itemMapping := mapping.NewItemMapping(requiredItemList766, ItemVersion766)
-	blockMapping := mapping.NewBlockMapping(blockStateData766)
+	blockTranslator := lookupOrCreateBlockTranslator(766, BlockVersion766, blockStateData766)
 	return &Protocol{
 		ver:             "1.21.50",
 		id:              proto.ID766,
-		blockTranslator: NewBlockTranslator(blockMapping, blockMappingLatest, chunk.NewNetworkPersistentEncoding(blockMapping, BlockVersion766), chunk.NewBlockPaletteEncoding(blockMapping, BlockVersion766), false),
+		blockTranslator: blockTranslator,
-		itemTranslator:  NewItemTranslator(itemMapping, itemMappingLatest(dragonflyMapping), blockMapping, blockMappingLatest),
+		itemTranslator:  NewItemTranslator(itemMapping, itemMappingLatest(dragonflyMapping), blockTranslator.BlockMapping(), blockMappingLatest),
 	}
 }

legacyver/v776.go

@@ -3,7 +3,6 @@ package legacyver
 import (
 	_ "embed"
 
-	"github.com/akmalfairuz/legacy-version/internal/chunk"
 	"github.com/akmalfairuz/legacy-version/legacyver/proto"
 	"github.com/akmalfairuz/legacy-version/mapping"
 )
@@ -24,12 +23,11 @@ var (
 
 func New776(dragonflyMapping bool) *Protocol {
 	itemMapping := mapping.NewItemMapping(requiredItemList776, ItemVersion776)
-	blockMapping := mapping.NewBlockMapping(blockStateData776)
+	blockTranslator := lookupOrCreateBlockTranslator(776, BlockVersion776, blockStateData776)
-
 	return &Protocol{
 		ver:             "1.21.60",
 		id:              proto.ID776,
-		blockTranslator: NewBlockTranslator(blockMapping, blockMappingLatest, chunk.NewNetworkPersistentEncoding(blockMapping, BlockVersion776), chunk.NewBlockPaletteEncoding(blockMapping, BlockVersion776), false),
+		blockTranslator: blockTranslator,
-		itemTranslator:  NewItemTranslator(itemMapping, itemMappingLatest(dragonflyMapping), blockMapping, blockMappingLatest),
+		itemTranslator:  NewItemTranslator(itemMapping, itemMappingLatest(dragonflyMapping), blockTranslator.BlockMapping(), blockMappingLatest),
 	}
 }

legacyver/v786.go

@@ -3,7 +3,6 @@ package legacyver
 import (
 	_ "embed"
 
-	"github.com/akmalfairuz/legacy-version/internal/chunk"
 	"github.com/akmalfairuz/legacy-version/legacyver/proto"
 	"github.com/akmalfairuz/legacy-version/mapping"
 )
@@ -23,12 +22,12 @@ var (
 )
 
 func New786(dragonflyMapping bool) *Protocol {
-	itemMapping786 := mapping.NewItemMapping(requiredItemList786, ItemVersion786)
+	itemMapping := mapping.NewItemMapping(requiredItemList786, ItemVersion786)
-	blockMapping786 := mapping.NewBlockMapping(blockStateData786)
+	blockTranslator := lookupOrCreateBlockTranslator(786, BlockVersion786, blockStateData786)
 	return &Protocol{
 		ver:             "1.21.70",
 		id:              proto.ID786,
-		blockTranslator: NewBlockTranslator(blockMapping786, blockMappingLatest, chunk.NewNetworkPersistentEncoding(blockMapping786, BlockVersion786), chunk.NewBlockPaletteEncoding(blockMapping786, BlockVersion786), false),
+		blockTranslator: blockTranslator,
-		itemTranslator:  NewItemTranslator(itemMapping786, itemMappingLatest(dragonflyMapping), blockMapping786, blockMappingLatest),
+		itemTranslator:  NewItemTranslator(itemMapping, itemMappingLatest(dragonflyMapping), blockTranslator.BlockMapping(), blockMappingLatest),
 	}
 }

legacyver/v800.go

@@ -3,7 +3,6 @@ package legacyver
 import (
 	_ "embed"
 
-	"github.com/akmalfairuz/legacy-version/internal/chunk"
 	"github.com/akmalfairuz/legacy-version/legacyver/proto"
 	"github.com/akmalfairuz/legacy-version/mapping"
 )
@@ -24,11 +23,11 @@ var (
 
 func New800(dragonflyMapping bool) *Protocol {
 	itemMapping := mapping.NewItemMapping(requiredItemList800, ItemVersion800)
-	blockMapping := mapping.NewBlockMapping(blockStateData800)
+	blockTranslator := lookupOrCreateBlockTranslator(800, BlockVersion800, blockStateData800)
 	return &Protocol{
 		ver:             "1.21.80",
 		id:              proto.ID800,
-		blockTranslator: NewBlockTranslator(blockMapping, blockMappingLatest, chunk.NewNetworkPersistentEncoding(blockMapping, BlockVersion800), chunk.NewBlockPaletteEncoding(blockMapping, BlockVersion800), false),
+		blockTranslator: blockTranslator,
-		itemTranslator:  NewItemTranslator(itemMapping, itemMappingLatest(dragonflyMapping), blockMapping, blockMappingLatest),
+		itemTranslator:  NewItemTranslator(itemMapping, itemMappingLatest(dragonflyMapping), blockTranslator.BlockMapping(), blockMappingLatest),
 	}
 }

legacyver/v818.go

@@ -3,7 +3,6 @@ package legacyver
 import (
 	_ "embed"
 
-	"github.com/akmalfairuz/legacy-version/internal/chunk"
 	"github.com/akmalfairuz/legacy-version/legacyver/proto"
 	"github.com/akmalfairuz/legacy-version/mapping"
 )
@@ -24,11 +23,11 @@ var (
 
 func New818(dragonflyMapping bool) *Protocol {
 	itemMapping := mapping.NewItemMapping(requiredItemList818, ItemVersion818)
-	blockMapping := mapping.NewBlockMapping(blockStateData818)
+	blockTranslator := lookupOrCreateBlockTranslator(818, BlockVersion818, blockStateData818)
 	return &Protocol{
 		ver:             "1.21.90",
 		id:              proto.ID818,
-		blockTranslator: NewBlockTranslator(blockMapping, blockMappingLatest, chunk.NewNetworkPersistentEncoding(blockMapping, BlockVersion818), chunk.NewBlockPaletteEncoding(blockMapping, BlockVersion818), false),
+		blockTranslator: blockTranslator,
-		itemTranslator:  NewItemTranslator(itemMapping, itemMappingLatest(dragonflyMapping), blockMapping, blockMappingLatest),
+		itemTranslator:  NewItemTranslator(itemMapping, itemMappingLatest(dragonflyMapping), blockTranslator.BlockMapping(), blockMappingLatest),
 	}
 }

legacyver/v819.go

@@ -3,7 +3,6 @@ package legacyver
 import (
 	_ "embed"
 
-	"github.com/akmalfairuz/legacy-version/internal/chunk"
 	"github.com/akmalfairuz/legacy-version/legacyver/proto"
 	"github.com/akmalfairuz/legacy-version/mapping"
 )
@@ -24,11 +23,11 @@ var (
 
 func New819(dragonflyMapping bool) *Protocol {
 	itemMapping := mapping.NewItemMapping(requiredItemList819, ItemVersion819)
-	blockMapping := mapping.NewBlockMapping(blockStateData819)
+	blockTranslator := lookupOrCreateBlockTranslator(819, BlockVersion819, blockStateData819)
 	return &Protocol{
 		ver:             "1.21.90",
 		id:              proto.ID819,
-		blockTranslator: NewBlockTranslator(blockMapping, blockMappingLatest, chunk.NewNetworkPersistentEncoding(blockMapping, BlockVersion819), chunk.NewBlockPaletteEncoding(blockMapping, BlockVersion819), false),
+		blockTranslator: blockTranslator,
-		itemTranslator:  NewItemTranslator(itemMapping, itemMappingLatest(dragonflyMapping), blockMapping, blockMappingLatest),
+		itemTranslator:  NewItemTranslator(itemMapping, itemMappingLatest(dragonflyMapping), blockTranslator.BlockMapping(), blockMappingLatest),
 	}
 }