Merge remote-tracking branch 'origin/master'

minecraft/conn.go

@@ -1042,6 +1042,7 @@ func (conn *Conn) startGame() {
 		DisablePlayerInteractions:    data.DisablePlayerInteractions,
 		BaseGameVersion:              data.BaseGameVersion,
 		GameVersion:                  protocol.CurrentVersion,
+		UseBlockNetworkIDHashes:      data.UseBlockNetworkIDHashes,
 	})
 	_ = conn.Flush()
 	conn.expect(packet.IDRequestChunkRadius, packet.IDSetLocalPlayerAsInitialised)
@@ -1231,6 +1232,7 @@ func (conn *Conn) handleStartGame(pk *packet.StartGame) error {
 		DisablePlayerInteractions:    pk.DisablePlayerInteractions,
 		ClientSideGeneration:         pk.ClientSideGeneration,
 		Experiments:                  pk.Experiments,
+		UseBlockNetworkIDHashes:      pk.UseBlockNetworkIDHashes,
 	}
 	for _, item := range pk.Items {
 		if item.Name == "minecraft:shield" {

minecraft/game_data.go

@@ -102,4 +102,8 @@ type GameData struct {
 	ChatRestrictionLevel uint8
 	// DisablePlayerInteractions is true if the client should ignore other players when interacting with the world.
 	DisablePlayerInteractions bool
+	// UseBlockNetworkIDHashes is true if the client should use the hash of a block's name as its network ID rather than
+	// its index in the expected block palette. This is useful for servers that wish to support multiple protocol versions
+	// and custom blocks, but it will result in extra bytes being written for every block in a sub chunk palette.
+	UseBlockNetworkIDHashes bool
 }