Infinity

 1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
17
18
19
20

io.on("connect", socket => {
  socket.emit("gameState", { ...gameState(), timeLeft: sleepEndTime - new Date().getTime() });
  socket.on("answer", (answer: number) => {
    if (answered.has(socket.id) || answerRevealed) {
      return;
    }
    answered.add(socket.id);
    if (!(socket.id in scoreboard)) {
      scoreboard[socket.id] = 0;
    }
    if (answer == correctAnswer) {
      scoreboard[socket.id] += 1;
    } else {
      scoreboard[socket.id] = 0;
    }
    if (scoreboard[socket.id] >= 21) {
      socket.emit("flag", process.env.FLAG ?? "bctf{fake_flag}");
    }
  })
})

 1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
17
18
19

while (true) {
  if (questionIndex === 0) {
    shuffleArray(QUESTIONS);
  }
  answerRevealed = false;
  answered.clear();
  correctAnswer = randomInt(4);
  io.emit("gameState", gameState());
  await sleep(8);
  answerRevealed = true;
  for (const player of Object.keys(scoreboard)) {
    if (!answered.has(player)) {
      delete scoreboard[player];
    }
  }
  io.emit("gameState", gameState());
  await sleep(3);
  questionIndex = (questionIndex + 1) % QUESTIONS.length;
}