refactor package

pkg/protocol/packet/configuration/server/keep_alive.go

@@ -0,0 +1,18 @@
+package server
+
+import "github.com/Tnze/go-mc/data/packetid"
+
+//codec:gen
+type ConfigKeepAlive struct {
+	ID int64
+}
+
+func (ConfigKeepAlive) PacketID() packetid.ServerboundPacketID {
+	return packetid.ServerboundConfigKeepAlive
+}
+
+func init() {
+	registerPacket(packetid.ServerboundConfigKeepAlive, func() ServerboundPacket {
+		return &ConfigKeepAlive{}
+	})
+}