How to make moves on behalf of a non-current player?

[nsaritzky]

I'm trying to set up simultaneous moves. My code looks like this:

Game.ts

...
export const playCard: Move<GameState> = (
  G,
  ctx,
  cardIndex: number,
  playerID: PlayerID
) => {
  const curr = G.players[playerID]
  curr.playedCard = curr.hand.splice(cardIndex, 1)[0]
  if (Object.values(G.players).every((p) => p.playedCard)) {
    determineResolutionOrder(G)
  }
}

const determineResolutionOrder = (G: GameState) => {
  Object.values(G.players)
    .sort((playerA, playerB) => playerA.playedCard!.val - playerB.playedCard!.val)
    .forEach((player, index) => (player.resolveOrder = index))

export const Game: Game<GameState> = {
  setup,

  moves: {
    draw: drawCards,
  },

  phases: {
    play: {
      start: true,
      turn: {
        activePlayers: { all: "playStage", minMoves: 1, maxMoves: 1 },
        stages: {
          playStage: {
            moves: { playCard },
          },
        },
      },
      moves: { playCard },
      next: "resolve",
    },
    resolve: {
      turn: {
        order: TurnOrder.CUSTOM_FROM("resolveOrder"),
         },
      },
      moves: { resolveCardMove },
    },
  },
}

App.ts

...
const App = () => (
    <div>
        <h1>Player 0</h1>
        <GameClient playerID="0" />
        <h1>Player 1</h1>
        <GameClient playerID="1" />
    </div>
)

Board.ts

...
const GameBoard = ({ G, ctx, playerID, moves }: GameProps) => (
    <h1>
        {G.players[playerID!].hand.map(({ val }, i) => (
            <input
                type="button"
                value={val}
                onClick={() => moves.playCard(i, playerID)}
                key={i}
            />
        ))}
    </h1>
)

The goal is to allow for the players to choose their cards simultaneously. In the first turn, the players all properly go into the playStage. Either can make a move. But if both try to, then I get a "playOrder is undefined" error. If I reference ctx.currentPlayer instead of passing playerID to playCard, then only the first player is referenced regardless of which client I send it through. I've looked at #774 and the code from the example in the "Clients" page in the docs but remain stumped.

[nsaritzky]

Of course, this wasn't an issue with stages or clients, but with my incorrect use of TurnOrder.CUSTOM_FROM.