bot is nolonger a submodule

bot/mcbot.go

@@ -0,0 +1,125 @@
+package bot
+
+import (
+	// "bufio"
+	// "bytes"
+	"fmt"
+	// "net"
+
+	"github.com/Tnze/go-mc/net"
+	pk "github.com/Tnze/go-mc/net/packet"
+)
+
+//ProtocalVersion is the protocal version
+// 477 for 1.14
+const ProtocalVersion = 477
+
+// PingAndList chack server status and list online player
+// Return a JSON string about server status.
+// see JSON format at https://wiki.vg/Server_List_Ping#Response
+func PingAndList(addr string, port int) (string, error) {
+	conn, err := net.DialMC(fmt.Sprintf("%s:%d", addr, port))
+	if err != nil {
+		return "", err
+	}
+
+	//握手
+	err = conn.WritePacket(
+		//Handshake Packet
+		pk.Marshal(
+			0x00,                       //Handshake packet ID
+			pk.VarInt(ProtocalVersion), //Protocal version
+			pk.String(addr),            //Server's address
+			pk.UnsignedShort(port),
+			pk.Byte(1),
+		))
+	if err != nil {
+		return "", fmt.Errorf("bot: send handshake packect fail: %v", err)
+	}
+
+	//请求服务器状态
+	err = conn.WritePacket(pk.Marshal(0))
+	if err != nil {
+		return "", fmt.Errorf("bot: send list packect fail: %v", err)
+	}
+
+	//服务器返回状态
+	recv, err := conn.ReadPacket()
+	if err != nil {
+		return "", fmt.Errorf("bot: recv list packect fail: %v", err)
+	}
+	var s pk.String
+	err = recv.Scan(&s)
+	return string(s), err
+}
+
+// JoinServer connect a Minecraft server for playing the game.
+func (c *Client) JoinServer(addr string, port int) (err error) {
+	//Connect
+	c.conn, err = net.DialMC(fmt.Sprintf("%s:%d", addr, port))
+	if err != nil {
+		err = fmt.Errorf("bot: connect server fail: %v", err)
+		return
+	}
+
+	//Handshake
+	err = c.conn.WritePacket(
+		//Handshake Packet
+		pk.Marshal(
+			0x00,                       //Handshake packet ID
+			pk.VarInt(ProtocalVersion), //Protocal version
+			pk.String(addr),            //Server's address
+			pk.UnsignedShort(port),
+			pk.Byte(2),
+		))
+	if err != nil {
+		err = fmt.Errorf("bot: send handshake packect fail: %v", err)
+		return
+	}
+
+	//Login
+	err = c.conn.WritePacket(
+		//LoginStart Packet
+		pk.Marshal(0, pk.String(c.Name)))
+	if err != nil {
+		err = fmt.Errorf("bot: send login start packect fail: %v", err)
+		return
+	}
+
+	for {
+		//Recive Packet
+		var pack pk.Packet
+		pack, err = c.conn.ReadPacket()
+		if err != nil {
+			err = fmt.Errorf("bot: recv packet for Login fail: %v", err)
+			return
+		}
+
+		//Handle Packet
+		switch pack.ID {
+		case 0x00: //Disconnect
+			var reason pk.String
+			err = pack.Scan(&reason)
+			if err != nil {
+				err = fmt.Errorf("bot: read Disconnect message fail: %v", err)
+			} else {
+				err = fmt.Errorf("bot: connect disconnected by server: %s", reason)
+			}
+			return
+		case 0x01: //Encryption Request
+			handleEncryptionRequest(c, pack)
+		case 0x02: //Login Success
+			// uuid, l := pk.UnpackString(pack.Data)
+			// name, _ := unpackString(pack.Data[l:])
+			return //switches the connection state to PLAY.
+		case 0x03: //Set Compression
+			var threshold pk.VarInt
+			if err := pack.Scan(&threshold); err != nil {
+				return fmt.Errorf("bot: set compression fail: %v", err)
+			}
+			c.conn.SetThreshold(int(threshold))
+		case 0x04: //Login Plugin Request
+			fmt.Println("Waring Login Plugin Request")
+		}
+	}
+}