PluginMessage event

bot/event.go

@@ -11,4 +11,5 @@ type eventBroker struct {
 	HealthChange  func() error
 	Die           func() error
 	SoundPlay     func(name string, category int, x, y, z float64, volume, pitch float32) error
+	PluginMessage func(channel string, data []byte) error
 }

bot/ingame.go

@@ -339,7 +339,16 @@ func handleJoinGamePacket(c *Client, p pk.Packet) error {
 }
 
 func handlePluginPacket(c *Client, p pk.Packet) error {
-	// fmt.Println("Plugin Packet: ", p)
+	var (
+		Channel pk.Identifier
+		Data    pk.PluginMessageData
+	)
+	if err := p.Scan(&Channel, &Data); err != nil {
+		return err
+	}
+	if c.Events.PluginMessage != nil {
+		return c.Events.PluginMessage(string(Channel), []byte(Data))
+	}
 	return nil
 }
 

bot/login.go

@@ -62,7 +62,7 @@ type encryptionRequest struct {
 	VerifyToken []byte
 }
 
-func (e *encryptionRequest) Decode(r pk.ComByteReader) error {
+func (e *encryptionRequest) Decode(r pk.DecodeReader) error {
 	var serverID pk.String
 	if err := serverID.Decode(r); err != nil {
 		return err

bot/world/entity/entity.go

@@ -1,9 +1,39 @@
 package entity
 
+import (
+	"github.com/Tnze/go-mc/nbt"
+	pk "github.com/Tnze/go-mc/net/packet"
+)
+
 //Entity is the entity of minecraft
 type Entity struct {
 	EntityID int //实体ID
 }
 
-type Solt struct {
+// The Slot data structure is how Minecraft represents an item and its associated data in the Minecraft Protocol
+type Slot struct {
+	Present bool
+	ItemID  int32
+	Count   int8
+	NBT     struct {
+	}
+}
+
+//Decode implement packet.FieldDecoder interface
+func (s *Slot) Decode(r pk.DecodeReader) error {
+	if err := (*pk.Boolean)(&s.Present).Decode(r); err != nil {
+		return err
+	}
+	if s.Present {
+		if err := (*pk.VarInt)(&s.ItemID).Decode(r); err != nil {
+			return err
+		}
+		if err := (*pk.Byte)(&s.Count).Decode(r); err != nil {
+			return err
+		}
+		if err := nbt.NewDecoder(r).Decode(&s.NBT); err != nil {
+			return err
+		}
+	}
+	return nil
 }

bot/world/entity/player/player.go

@@ -12,7 +12,7 @@ type Player struct {
 	OnGround   bool
 
 	HeldItem  int //拿着的物品栏位
-	Inventory []entity.Solt
+	Inventory []entity.Slot
 
 	Health         float32 //血量
 	Food           int32   //饱食度

chat/chatMsg.go

@@ -39,7 +39,7 @@ func (m *Message) UnmarshalJSON(jsonMsg []byte) (err error) {
 }
 
 //Decode a ChatMsg packet
-func (m *Message) Decode(r pk.ComByteReader) error {
+func (m *Message) Decode(r pk.DecodeReader) error {
 	var Len pk.VarInt
 	if err := Len.Decode(r); err != nil {
 		return err

cmd/daze/daze.go

@@ -29,6 +29,7 @@ func main() {
 	c.Events.GameStart = onGameStart
 	c.Events.ChatMsg = onChatMsg
 	c.Events.Disconnect = onDisconnect
+	c.Events.PluginMessage = onPluginMessage
 
 	//JoinGame
 	err = c.HandleGame()
@@ -51,3 +52,8 @@ func onDisconnect(c chat.Message) error {
 	log.Println("Disconnect:", c)
 	return nil
 }
+
+func onPluginMessage(channel string, data []byte) error {
+	log.Println("PluginMessage", channel, data)
+	return nil
+}

net/packet/types.go

@@ -2,6 +2,7 @@ package packet
 
 import (
 	"io"
+	"io/ioutil"
 	"math"
 )
 
@@ -15,11 +16,11 @@ type FieldEncoder interface {
 }
 
 type FieldDecoder interface {
-	Decode(r ComByteReader) error
+	Decode(r DecodeReader) error
 }
 
-//ComByteReader is both io.Reader and io.ByteReader
+//DecodeReader is both io.Reader and io.ByteReader
-type ComByteReader interface {
+type DecodeReader interface {
 	io.ByteReader
 	io.Reader
 }
@@ -69,7 +70,7 @@ type (
 )
 
 //ReadNBytes read N bytes from bytes.Reader
-func ReadNBytes(r ComByteReader, n int) (bs []byte, err error) {
+func ReadNBytes(r DecodeReader, n int) (bs []byte, err error) {
 	bs = make([]byte, n)
 	for i := 0; i < n; i++ {
 		bs[i], err = r.ReadByte()
@@ -89,7 +90,7 @@ func (b Boolean) Encode() []byte {
 }
 
 //Decode a Boolean
-func (b *Boolean) Decode(r ComByteReader) error {
+func (b *Boolean) Decode(r DecodeReader) error {
 	v, err := r.ReadByte()
 	if err != nil {
 		return err
@@ -108,7 +109,7 @@ func (s String) Encode() (p []byte) {
 }
 
 //Decode a String
-func (s *String) Decode(r ComByteReader) error {
+func (s *String) Decode(r DecodeReader) error {
 	var l VarInt //String length
 	if err := l.Decode(r); err != nil {
 		return err
@@ -129,7 +130,7 @@ func (b Byte) Encode() []byte {
 }
 
 //Decode a Byte
-func (b *Byte) Decode(r ComByteReader) error {
+func (b *Byte) Decode(r DecodeReader) error {
 	v, err := r.ReadByte()
 	if err != nil {
 		return err
@@ -144,7 +145,7 @@ func (ub UnsignedByte) Encode() []byte {
 }
 
 //Decode a UnsignedByte
-func (ub *UnsignedByte) Decode(r ComByteReader) error {
+func (ub *UnsignedByte) Decode(r DecodeReader) error {
 	v, err := r.ReadByte()
 	if err != nil {
 		return err
@@ -163,7 +164,7 @@ func (s Short) Encode() []byte {
 }
 
 //Decode a Short
-func (s *Short) Decode(r ComByteReader) error {
+func (s *Short) Decode(r DecodeReader) error {
 	bs, err := ReadNBytes(r, 2)
 	if err != nil {
 		return err
@@ -183,7 +184,7 @@ func (us UnsignedShort) Encode() []byte {
 }
 
 //Decode a UnsignedShort
-func (us *UnsignedShort) Decode(r ComByteReader) error {
+func (us *UnsignedShort) Decode(r DecodeReader) error {
 	bs, err := ReadNBytes(r, 2)
 	if err != nil {
 		return err
@@ -203,7 +204,7 @@ func (i Int) Encode() []byte {
 }
 
 //Decode a Int
-func (i *Int) Decode(r ComByteReader) error {
+func (i *Int) Decode(r DecodeReader) error {
 	bs, err := ReadNBytes(r, 4)
 	if err != nil {
 		return err
@@ -223,7 +224,7 @@ func (l Long) Encode() []byte {
 }
 
 //Decode a Long
-func (l *Long) Decode(r ComByteReader) error {
+func (l *Long) Decode(r DecodeReader) error {
 	bs, err := ReadNBytes(r, 8)
 	if err != nil {
 		return err
@@ -252,7 +253,7 @@ func (v VarInt) Encode() (vi []byte) {
 }
 
 //Decode a VarInt
-func (v *VarInt) Decode(r ComByteReader) error {
+func (v *VarInt) Decode(r DecodeReader) error {
 	var n uint32
 	for i := 0; i < 5; i++ { //读数据前的长度标记
 		sec, err := r.ReadByte()
@@ -283,7 +284,7 @@ func (p Position) Encode() []byte {
 }
 
 // Decode a Position
-func (p *Position) Decode(r ComByteReader) error {
+func (p *Position) Decode(r DecodeReader) error {
 	var v Long
 	if err := v.Decode(r); err != nil {
 		return err
@@ -314,7 +315,7 @@ func (f Float) Encode() []byte {
 }
 
 // Decode a Float
-func (f *Float) Decode(r ComByteReader) error {
+func (f *Float) Decode(r DecodeReader) error {
 	var v Int
 	if err := v.Decode(r); err != nil {
 		return err
@@ -330,7 +331,7 @@ func (d Double) Encode() []byte {
 }
 
 // Decode a Double
-func (d *Double) Decode(r ComByteReader) error {
+func (d *Double) Decode(r DecodeReader) error {
 	var v Long
 	if err := v.Decode(r); err != nil {
 		return err
@@ -339,3 +340,23 @@ func (d *Double) Decode(r ComByteReader) error {
 	*d = Double(math.Float64frombits(uint64(v)))
 	return nil
 }
+
+// The PluginMessageData only used in recive PluginMessage packet.
+// When decode it, read to end.
+type PluginMessageData []byte
+
+//Encode a PluginMessageData
+func (p *PluginMessageData) Encode(r io.Writer) error {
+	_, err := r.Write([]byte(*p))
+	return err
+}
+
+//Decode a PluginMessageData
+func (p *PluginMessageData) Decode(r DecodeReader) error {
+	data, err := ioutil.ReadAll(r)
+	if err != nil {
+		return err
+	}
+	*p = PluginMessageData(data)
+	return nil
+}