function MyGame() {
  return (
  <PartySocketProvider host="localhost:1999/position" room="game1">
    <Player id={1} />
    <Player id={2} />
    <Player id={3} />
    
     <PartySocketProvider host="localhost:1999/chat" room="game1">
       <Chat />
     </PartySocketProvider>
     
  </PartySocketProvider>)
}

function Player() {
  const [position, setPosition] = useState()
  
  usePartySocket({
    // you could pass options here for a "provider-less" mode
    // host: 'localhost:1999/position',
    // room: 'game1',
    onMessage: (msg) => {
      const { player, position } = JSON.parse(msg.data)
      if (player === id) setPosition(position)
    }
  })

  return ...
}