default-martingale.js

var config = {
  baseBet: { value: 100, type: 'balance', label: 'base bet' },
  payout: { value: 2, type: 'multiplier' },
  stop: { value: 1e8, type: 'balance', label: 'stop if bet >' },
  loss: {
    value: 'increase', type: 'radio', label: 'On Loss',
    options: {
      base: { type: 'noop', label: 'Return to base bet' },
      increase: { value: 2, type: 'multiplier', label: 'Increase bet by' },
    }
  },
  win: {
    value: 'base', type: 'radio', label: 'On Win',
    options: {
      base: { type: 'noop', label: 'Return to base bet' },
      increase: { value: 2, type: 'multiplier', label: 'Increase bet by' },
    }
  },
  delay: { value: 100, type: 'number', label: 'Bet Speed' }
};

this.log('Script is running..');
var currentBet = config.baseBet.value;

for(;;){
  const result = await this.bet(roundBit(currentBet), config.payout.value);
  if (result.multiplier >= result.target) {
    if (config.win.value === 'base') {
      currentBet = config.baseBet.value;
    } else {
      console.assert(config.win.value === 'increase');
      currentBet *= config.win.options.increase.value;
    }
    this.log('We won, so next bet will be', currentBet/100, 'bits')
  } else {
    // damn, looks like we lost :(
    if (config.loss.value === 'base') {
      currentBet = config.baseBet.value;
    } else {
      console.assert(config.loss.value === 'increase');
      currentBet *= config.loss.options.increase.value;
    }
    this.log('We lost, so next bet will be', currentBet/100, 'bits')
  }

  if (currentBet > config.stop.value) {
    this.log('Was about to bet', currentBet, 'which triggers the stop');
    break;
  }
  await sleep(config.delay.value);
}

function roundBit(bet) {
  return Math.round(bet / 100) * 100;
}

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