Multiplayer ctx.Numplayers stay at 2 ReactNative + Server

[cynnfx]

Hi first thank's for this awesome work!

I'm currently work on a little game with a react-native client. I've made a couple request to the lobby first to know the gameID, playerID and numPlayers. Then I call the client this way :

const App = Client({ game: game, numPlayers: numPlayer, board: board, multiplayer: SocketIO({ ... }), })

<App gameID={gameID} playerID={playerID} playerName={playerName} />

But if i look in ctx.numPlayers it always 2.

I am missing something?

[delucis]

Hey @cynnfx! How are you creating the game?

If you’re using the Lobby REST API, you need to set numPlayers in the body of your create request. Docs: https://boardgame.io/documentation/#/api/Lobby?id=creating-a-room

For example, using the Fetch API from a browser:

fetch('http://localhost:8000/games/game-name/create', {
  method: 'POST',
  body: JSON.stringify({ numPlayers: 4 }),
  headers: { 'Content-Type': 'application/json' },
});

[cynnfx]

Hi @delucis, yes i do a post request to : /games/game/create with body

{ "numPlayers": x }

and the lobby seems to handle it proprely because i can list rooms and the number of player slot is good

[delucis]

Hmm, interesting! Do you also see the incorrect numPlayers in the game state initialised by the server?

For example, if you add something like this as your game setup function:

const game = {
  name: 'game',
  setup: ctx => {
    console.log(ctx.numPlayers);
  },
};

Do you see the correct value in your server logs?

[popey456963]

Have also found this whilst using the default lobby setup. Can request a one player game but the ctx has two players in it.

When logging the ctx variable on the server I see the same incorrect value (where there are two players).

[mankuthimma]

Not sure if this is a work around, but setting numPlayers: 1 in the Client initialisation in addition to the Lobby creation, works. Can anybody clarify if this is by design? (Seeing this behaviour in 0.49.10; the Client initialisation wasn't needed in 0.39.10). const GameClient = Client({ game: StarWarsGame, board: StarWarsBoard, numPlayers: 4, multiplayer: SocketIO({ server: server, }), });