add more configuration supports

bot/configuration.go

@@ -1,13 +1,26 @@
 package bot
 
 import (
+	"unsafe"
+
 	"github.com/Tnze/go-mc/chat"
 	"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"
+	"github.com/Tnze/go-mc/registry"
 )
 
+type ConfigData struct {
+	Registries   registry.NetworkCodec
+	ResourcePack struct {
+		URL           string
+		Hash          string
+		Forced        bool
+		PromptMessage *chat.Message // Optional
+	}
+	FeatureFlags []string
+}
+
 type ConfigErr struct {
 	Stage string
 	Err   error
@@ -72,17 +85,54 @@ func (c *Client) joinConfiguration(conn *net.Conn) error {
 			}
 
 		case packetid.ClientboundConfigPing:
+			var pingID pk.Int
+			err := p.Scan(&pingID)
+			if err != nil {
+				return ConfigErr{"ping", err}
+			}
+			// send it back
+			err = conn.WritePacket(pk.Marshal(
+				packetid.ServerboundConfigPong,
+				pingID,
+			))
+			if err != nil {
+				return ConfigErr{"pong", err}
+			}
+
 		case packetid.ClientboundConfigRegistryData:
-			var registryCodec nbt.RawMessage
-			err := p.Scan(pk.NBT(&registryCodec))
+			err := p.Scan(pk.NBT(&c.ConfigData.Registries))
 			if err != nil {
 				return ConfigErr{"registry data", err}
 			}
-			// TODO: Handle registries
 
 		case packetid.ClientboundConfigResourcePack:
+			var Url, Hash pk.String
+			var Forced pk.Boolean
+			var PromptMessage pk.Option[chat.Message, *chat.Message]
+			err := p.Scan(
+				&Url,
+				&Hash,
+				&Forced,
+				&PromptMessage,
+			)
+			if err != nil {
+				return ConfigErr{"resource pack", err}
+			}
+			c.ConfigData.ResourcePack.URL = string(Url)
+			c.ConfigData.ResourcePack.Hash = string(Hash)
+			c.ConfigData.ResourcePack.Forced = bool(Forced)
+			if PromptMessage.Has {
+				c.ConfigData.ResourcePack.PromptMessage = &PromptMessage.Val
+			}
+
 		case packetid.ClientboundConfigUpdateEnabledFeatures:
+			err := p.Scan(pk.Array((*[]pk.Identifier)(unsafe.Pointer(&c.ConfigData.FeatureFlags))))
+			if err != nil {
+				return ConfigErr{"update enabled features", err}
+			}
+
 		case packetid.ClientboundConfigUpdateTags:
+			// TODO: Handle Tags
 		}
 	}
 }