function sleep(ms) {
  return new Promise(function(resolve) {
    return setTimeout(resolve, ms);
  });
}

async function gatherTokens() {
  var i;
  var tokensNeeded = parseInt(
    document.getElementById("checkoutTotalTokens").value
  );

  for (i = 1; i < tokensNeeded + 1; i++) {
    if (i % 5 === 0) {
      console.log("WAITING");
      await sleep(3000);
    }

    console.log("PLAYING");
  }
}