add player package with key client-side player functionality, update protocol codecs, and refactor metadata definitions and slot usage

pkg/client/connect.go

@@ -0,0 +1,74 @@
+package client
+
+import (
+	"context"
+	"errors"
+	"time"
+
+	"git.konjactw.dev/patyhank/minego/pkg/auth"
+	"github.com/Tnze/go-mc/chat"
+	"github.com/Tnze/go-mc/data/packetid"
+	pk "github.com/Tnze/go-mc/net/packet"
+)
+
+func (b *botClient) login() error {
+	a := &auth.Auth{
+		Conn:     b.conn,
+		Provider: b.authProvider,
+	}
+
+	ctx, cancelFunc := context.WithTimeout(context.Background(), 30*time.Second)
+	defer cancelFunc()
+
+	return a.HandleLogin(ctx)
+}
+
+func (b *botClient) configuration() (err error) {
+	var p pk.Packet
+	for {
+		err = b.conn.ReadPacket(&p)
+
+		switch packetid.ClientboundPacketID(p.ID) {
+		case packetid.ClientboundConfigDisconnect:
+			var reason chat.Message
+			err = p.Scan(&reason)
+			if err != nil {
+				return err
+			}
+			return errors.New("kicked: " + reason.String())
+		case packetid.ClientboundConfigFinishConfiguration:
+			err = b.conn.WritePacket(pk.Marshal(
+				packetid.ServerboundConfigFinishConfiguration,
+			))
+			return err
+		case packetid.ClientboundConfigKeepAlive:
+			var keepAliveID pk.Long
+			err = p.Scan(&keepAliveID)
+			if err != nil {
+				return err
+			}
+			err = b.conn.WritePacket(pk.Marshal(packetid.ServerboundConfigKeepAlive, keepAliveID))
+			if err != nil {
+				return err
+			}
+		case packetid.ClientboundConfigPing:
+			var pingID pk.Int
+			err = p.Scan(&pingID)
+			if err != nil {
+				return err
+			}
+			err = b.conn.WritePacket(pk.Marshal(packetid.ServerboundConfigPong, pingID))
+			if err != nil {
+				return err
+			}
+
+		case packetid.ClientboundConfigSelectKnownPacks:
+			err = b.conn.WritePacket(pk.Marshal(packetid.ServerboundConfigSelectKnownPacks, pk.VarInt(0)))
+			if err != nil {
+				return err
+			}
+		default:
+			continue
+		}
+	}
+}