configuration protocol support draft

bot/configuration.go

@@ -0,0 +1,67 @@
+package bot
+
+import (
+	"github.com/Tnze/go-mc/data/packetid"
+	"github.com/Tnze/go-mc/nbt"
+	"github.com/Tnze/go-mc/net"
+	pk "github.com/Tnze/go-mc/net/packet"
+)
+
+func (c *Client) joinConfiguration(conn *net.Conn) error {
+	receiving := "config custom payload"
+	for {
+		var p pk.Packet
+		if err := conn.ReadPacket(&p); err != nil {
+			return LoginErr{receiving, err}
+		}
+
+		switch packetid.ClientboundPacketID(p.ID) {
+		case packetid.ClientboundConfigCustomPayload:
+			var channel pk.Identifier
+			var data pk.PluginMessageData
+			err := p.Scan(&channel, &data)
+			if err != nil {
+				return LoginErr{"custom payload", err}
+			}
+			// TODO: Provide configuration custom data handling interface
+
+		case packetid.ClientboundConfigDisconnect:
+		case packetid.ClientboundConfigFinishConfiguration:
+			err := conn.WritePacket(pk.Marshal(
+				packetid.ServerboundConfigFinishConfiguration,
+			))
+			if err != nil {
+				return LoginErr{"finish config", err}
+			}
+			return nil
+
+		case packetid.ClientboundConfigKeepAlive:
+			var keepAliveID pk.Long
+			err := p.Scan(&keepAliveID)
+			if err != nil {
+				return LoginErr{"keep alive", err}
+			}
+			// send it back
+			err = conn.WritePacket(pk.Marshal(
+				packetid.ServerboundConfigKeepAlive,
+				keepAliveID,
+			))
+			if err != nil {
+				return LoginErr{"keep alive", err}
+			}
+
+		case packetid.ClientboundConfigPing:
+		case packetid.ClientboundConfigRegistryData:
+			var registryCodec nbt.RawMessage
+			err := p.Scan(pk.NBT(&registryCodec))
+			if err != nil {
+				return LoginErr{"registry data", err}
+			}
+			// TODO: Handle registries
+
+		case packetid.ClientboundConfigResourcePack:
+		case packetid.ClientboundConfigUpdateEnabledFeatures:
+		case packetid.ClientboundConfigUpdateTags:
+		}
+	}
+}