update to huffman v2 - removes tree initialization nearly completely

go.mod

@@ -2,4 +2,4 @@ module github.com/teeworlds-go/protocol
 
 go 1.22.3
 
-require github.com/teeworlds-go/huffman v1.0.0
+require github.com/teeworlds-go/huffman/v2 v2.0.0

go.sum

@@ -1,2 +1,2 @@
-github.com/teeworlds-go/huffman v1.0.0 h1:XSNMNAJZb+njNrPACsxcDrrLDXTGjZZt35FqLAuHi4I=
-github.com/teeworlds-go/huffman v1.0.0/go.mod h1:kjaXpL6C6xL7CM+tWPNYjdEgVZB2GumKhx7rCDdXArU=
+github.com/teeworlds-go/huffman/v2 v2.0.0 h1:eWmQe6OZ7o6Qn75ErZ0UeM+fnT0Gz6XLx0dlO2AtJ4U=
+github.com/teeworlds-go/huffman/v2 v2.0.0/go.mod h1:qrL61bcSz/NZ1mQyFjAOcbza7acJQj2ltwdjetLHsOY=

protocol7/packet.go

@@ -4,7 +4,7 @@ import (
 	"fmt"
 	"slices"
 
-	"github.com/teeworlds-go/huffman"
+	"github.com/teeworlds-go/huffman/v2"
 	"github.com/teeworlds-go/protocol/chunk7"
 	"github.com/teeworlds-go/protocol/messages7"
 	"github.com/teeworlds-go/protocol/network7"
@@ -336,8 +336,7 @@ func (packet *Packet) Unpack(data []byte) (err error) {
 	if packet.Header.Flags.Compression {
 		// TODO: try avoiding repeated initialization of the huffman tree structure
 		// move this into the Packet struct or even further up
-		huff := huffman.Huffman{}
-		payload, err = huff.Decompress(payload)
+		payload, err = huffman.Decompress(payload)
 		if err != nil {
 			return err
 		}
@@ -373,10 +372,8 @@ func (packet *Packet) Pack(connection *Session) []byte {
 	}
 
 	if packet.Header.Flags.Compression {
-		// TODO: store huffman object in connection to avoid reallocating memory
-		huff := huffman.Huffman{}
 		var err error
-		payload, err = huff.Compress(payload)
+		payload, err = huffman.Compress(payload)
 		if err != nil {
 			panic(err)
 		}