Fix: networking.types.Position.send() doesn't accept a Position.

minecraft/networking/packets/clientbound/play/block_change_packet.py

@@ -29,8 +29,7 @@ class BlockChangePacket(Packet):
 
     def write(self, socket, compression_threshold=None):
         packet_buffer = PacketBuffer()
-        (x, y, z) = self.location
-        Position.send(x, y, z, packet_buffer)
+        Position.send(self.location, packet_buffer)
         blockData = ((self.blockId << 4) | (self.blockMeta & 0xF))
         VarInt.send(blockData)
         self._write_buffer(socket, packet_buffer, compression_threshold)

minecraft/networking/types.py

@@ -263,7 +263,9 @@ class Position(Type, namedtuple('Position', ('x', 'y', 'z'))):
         return Position(x=x, y=y, z=z)
 
     @staticmethod
-    def send(x, y, z, socket):
+    def send(position, socket):
+        # 'position' can be either a tuple or Position object.
+        x, y, z = position
         value = ((x & 0x3FFFFFF) << 38) | ((y & 0xFFF) << 26) | (z & 0x3FFFFFF)
         UnsignedLong.send(value, socket)