Handle entity metadata

protocol/packets.py

@@ -4,10 +4,11 @@ from minecraft.networking.packets import Packet, PacketBuffer
 from minecraft.networking.types import (
     VarInt, Integer, UnsignedByte, Position, Vector, MutableRecord,
     attribute_alias, multi_attribute_alias, Long, Boolean, VarLong,
-    Short, UnsignedLong, Byte, BlockFace, String
+    Short, UnsignedLong, Byte, BlockFace, String, UUID, Angle, Double,
+    Float,
 )
 
-from protocol.types import Nbt, Slot
+from protocol.types import Nbt, Slot, Entry
 
 
 class ChunkDataPacket(Packet):
@@ -286,3 +287,23 @@ class ServerWindowConfirmationPacket(Packet):
         {'action_number': Short},
         {'accepted': Boolean},
     ]
+
+
+class EntityMetadataPacket(Packet):
+    # Updates one or more metadata properties for an existing entity
+    # https://wiki.vg/Protocol#Entity_Metadata
+
+    id = 0x44
+    packet_name = 'entity metadata'
+    fields = 'entity_id', 'metadata'
+
+    class Entry:
+        __slots__ = 'index', 'type', 'value'
+
+    def read(self, file_object):
+        self.entity_id = VarInt.read(file_object)
+        self.metadata = []
+        for _ in range(99):
+            entry = Entry.read(file_object)
+            if not entry: break
+            self.metadata.append(entry)