Function receiveMoves

example/tutorial/step2/main.js:25–50

(board, websocket)

}

function receiveMoves(board, websocket) {
  websocket.addEventListener("message", ({ data }) => {
    const event = JSON.parse(data);
    switch (event.type) {
      case "init":
        // Create links for inviting the second player and spectators.
        document.querySelector(".join").href = "?join=" + event.join;
        document.querySelector(".watch").href = "?watch=" + event.watch;
        break;
      case "play":
        // Update the UI with the move.
        playMove(board, event.player, event.column, event.row);
        break;
      case "win":
        showMessage(`Player ${event.player} wins!`);
        // No further messages are expected; close the WebSocket connection.
        websocket.close(1000);
        break;
      case "error":
        showMessage(event.message);
        break;
      default:
        throw new Error(`Unsupported event type: ${event.type}.`);
    }
  });
}

function sendMoves(board, websocket) {
  // Don't send moves for a spectator watching a game.