Code snippet 17 - For multiplayer space invaders article

server.js

function finishGame(playerId) {
  let firstRunnerUpName = "";
  let secondRunnerUpName = "";
  let winnerName = "Nobody";
  let leftoverPlayers = new Array();
  for (let item in players) {
    leftoverPlayers.push({
      nickname: players[item].nickname,
      score: players[item].score,
    });
  }

  leftoverPlayers.sort((a, b) => {
    return b.score - a.score;
  });
  if (playerId == "") {
    if (leftoverPlayers.length >= 3) {
      firstRunnerUpName = leftoverPlayers[0].nickname;
      secondRunnerUpName = leftoverPlayers[1].nickname;
    } else if (leftoverPlayers == 2) {
      firstRunnerUp = leftoverPlayers[0].nickname;
    }
  } else {
    winnerName = players[playerId].nickname;
    if (leftoverPlayers.length >= 3) {
      firstRunnerUpName = leftoverPlayers[1].nickname;
      secondRunnerUpName = leftoverPlayers[2].nickname;
    } else if (leftoverPlayers.length == 2) {
      firstRunnerUpName = leftoverPlayers[1].nickname;
    }
  }

  gameRoom.publish("game-over", {
    winner: winnerName,
    firstRunnerUp: firstRunnerUpName,
    secondRunnerUp: secondRunnerUpName,
    totalPlayers: totalPlayers,
  });

  resetServerState();
}