VexoraDevelopment/legacy-version
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Add support for dimension ranges and network hashes

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This commit is contained in:
Javier León
2026-01-03 05:33:35 -03:00
parent 2ad86d772f
commit 7a4d57fa6a
10 changed files with 372 additions and 82 deletions
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27
internal/chunk/encode.go
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@@ -4,6 +4,7 @@ import (
"bytes"
"sync"
"github.com/akmalfairuz/legacy-version/mapping"
"github.com/df-mc/dragonfly/server/block/cube"
)
@@ -14,10 +15,10 @@ var pool = sync.Pool{
},
}
func NetworkEncode(air uint32, c *Chunk, oldFormat bool, pe PaletteEncoding) ([]byte, error) {
func NetworkEncode(air uint32, c *Chunk, oldFormat bool, pe PaletteEncoding, block mapping.Block, useBlockHashes bool) ([]byte, error) {
buf := pool.Get().(*bytes.Buffer)
for i := 0; i < len(c.sub); i++ {
_, _ = buf.Write(EncodeSubChunk(c.sub[i], NetworkEncoding, pe, SubChunkVersion8, c.r, i))
_, _ = buf.Write(EncodeSubChunk(c.sub[i], NetworkEncoding, pe, SubChunkVersion8, c.r, i, block, useBlockHashes))
}
if oldFormat {
biomes := make([]byte, 256)
@@ -30,7 +31,7 @@ func NetworkEncode(air uint32, c *Chunk, oldFormat bool, pe PaletteEncoding) ([]
}
_, _ = buf.Write(biomes)
} else {
_, _ = buf.Write(EncodeBiomes(c, NetworkEncoding))
_, _ = buf.Write(EncodeBiomes(c, NetworkEncoding, block, useBlockHashes))
}
return buf.Bytes(), nil
@@ -38,7 +39,7 @@ func NetworkEncode(air uint32, c *Chunk, oldFormat bool, pe PaletteEncoding) ([]
// EncodeSubChunk encodes a sub-chunk from a chunk into bytes. An Encoding may be passed to encode either for network or
// disk purposed, the most notable difference being that the network encoding generally uses varints and no NBT.
func EncodeSubChunk(s *SubChunk, e Encoding, pe PaletteEncoding, subChunkVer subChunkVersion, r cube.Range, ind int) []byte {
func EncodeSubChunk(s *SubChunk, e Encoding, pe PaletteEncoding, subChunkVer subChunkVersion, r cube.Range, ind int, block mapping.Block, useBlockHashes bool) []byte {
buf := pool.Get().(*bytes.Buffer)
defer func() {
buf.Reset()
@@ -47,7 +48,7 @@ func EncodeSubChunk(s *SubChunk, e Encoding, pe PaletteEncoding, subChunkVer sub
subChunkVer.EncodeHeader(buf, s, r, ind)
for _, storage := range s.storages {
encodePalettedStorage(buf, storage, nil, e, pe)
encodePalettedStorage(buf, storage, nil, e, pe, block, useBlockHashes)
}
sub := make([]byte, buf.Len())
_, _ = buf.Read(sub)
@@ -56,7 +57,7 @@ func EncodeSubChunk(s *SubChunk, e Encoding, pe PaletteEncoding, subChunkVer sub
// EncodeBiomes encodes the biomes of a chunk into bytes. An Encoding may be passed to encode either for network or
// disk purposed, the most notable difference being that the network encoding generally uses varints and no NBT.
func EncodeBiomes(c *Chunk, e Encoding) []byte {
func EncodeBiomes(c *Chunk, e Encoding, block mapping.Block, useBlockHashes bool) []byte {
buf := pool.Get().(*bytes.Buffer)
defer func() {
buf.Reset()
@@ -65,7 +66,7 @@ func EncodeBiomes(c *Chunk, e Encoding) []byte {
var previous *PalettedStorage
for _, b := range c.biomes {
encodePalettedStorage(buf, b, previous, e, BiomePaletteEncoding)
encodePalettedStorage(buf, b, previous, e, BiomePaletteEncoding, block, useBlockHashes)
previous = b
}
biomes := make([]byte, buf.Len())
@@ -75,7 +76,7 @@ func EncodeBiomes(c *Chunk, e Encoding) []byte {
// encodePalettedStorage encodes a PalettedStorage into a bytes.Buffer. The Encoding passed is used to write the Palette
// of the PalettedStorage.
func encodePalettedStorage(buf *bytes.Buffer, storage, previous *PalettedStorage, e Encoding, pe PaletteEncoding) {
func encodePalettedStorage(buf *bytes.Buffer, storage, previous *PalettedStorage, e Encoding, pe PaletteEncoding, block mapping.Block, useBlockHashes bool) {
if storage.Equal(previous) {
_, _ = buf.Write([]byte{0x7f<<1 | e.Network()})
return
@@ -89,5 +90,13 @@ func encodePalettedStorage(buf *bytes.Buffer, storage, previous *PalettedStorage
}
_, _ = buf.Write(b)
e.EncodePalette(buf, storage.palette, pe)
palette := storage.palette
if useBlockHashes {
for i, rid := range palette.values {
if hash, ok := block.RuntimeIDToHash(rid); ok {
palette.values[i] = hash
}
}
}
e.EncodePalette(buf, palette, pe)
}