/* Returns a fresh game. */
export function newGame() {
  return {
    "state": "waiting",  // or "waiting" or "won" or "tie"
    "board": [
      0, 0, 0, 0, 0, 0, 0,
      0, 0, 0, 0, 0, 0, 0,
      0, 0, 0, 0, 0, 0, 0,
      0, 0, 0, 0, 0, 0, 0,
      0, 0, 0, 0, 0, 0, 0,
      0, 0, 0, 0, 0, 0, 0,
    ],
    "next": 1,  // 1 or 2, the player whose turn it is, the winner if state is "won"
    "player1": undefined,
    "player2": undefined,
  }
}

/* Drops a piece into given column. */
export function dropPiece(game, column) {
  ...
}