Add support for protocol version 1.21.100 (#12)

internal/block_states.go

@@ -2,10 +2,11 @@ package internal
 
 import (
 	"fmt"
-	"github.com/df-mc/worldupgrader/blockupgrader"
 	"sort"
 	"strings"
 	"unsafe"
+
+	"github.com/df-mc/worldupgrader/blockupgrader"
 )
 
 // StateHash is a struct that may be used as a map key for block states. It contains the name of the block state

internal/chunk/chunk.go

@@ -1,8 +1,9 @@
 package chunk
 
 import (
-	"github.com/df-mc/dragonfly/server/block/cube"
 	"sync"
+
+	"github.com/df-mc/dragonfly/server/block/cube"
 )
 
 // Chunk is a segment in the world with a size of 16x16x256 blocks. A chunk contains multiple sub chunks

internal/chunk/decode.go

@@ -3,6 +3,7 @@ package chunk
 import (
 	"bytes"
 	"fmt"
+
 	"github.com/df-mc/dragonfly/server/block/cube"
 )
 

internal/chunk/encode.go

@@ -2,8 +2,9 @@ package chunk
 
 import (
 	"bytes"
-	"github.com/df-mc/dragonfly/server/block/cube"
 	"sync"
+
+	"github.com/df-mc/dragonfly/server/block/cube"
 )
 
 // pool is used to pool byte buffers used for encoding chunks.

internal/chunk/encoding.go

@@ -4,9 +4,10 @@ import (
 	"bytes"
 	"encoding/binary"
 	"fmt"
-	"github.com/akmalfairuz/legacy-version/mapping"
 	"strings"
 
+	"github.com/akmalfairuz/legacy-version/mapping"
+
 	"github.com/df-mc/dragonfly/server/block/cube"
 	"github.com/df-mc/worldupgrader/blockupgrader"
 	"github.com/sandertv/gophertunnel/minecraft/nbt"

internal/item/registry.go

@@ -4,12 +4,13 @@ import (
 	"bytes"
 	"embed"
 	"encoding/json"
-	"github.com/df-mc/worldupgrader/blockupgrader"
-	"github.com/sandertv/gophertunnel/minecraft/nbt"
-	"github.com/sandertv/gophertunnel/minecraft/protocol"
 	"regexp"
 	"sort"
 	"strconv"
+
+	"github.com/df-mc/worldupgrader/blockupgrader"
+	"github.com/sandertv/gophertunnel/minecraft/nbt"
+	"github.com/sandertv/gophertunnel/minecraft/protocol"
 )
 
 var (

internal/pool.go

@@ -0,0 +1,13 @@
+package internal
+
+import (
+	"bytes"
+	"sync"
+)
+
+// BufferPool is a sync.Pool for buffers used to write compressed data to.
+var BufferPool = sync.Pool{
+	New: func() any {
+		return bytes.NewBuffer(make([]byte, 0, 256))
+	},
+}