function minerFunction (resources, amount, miner) {
    resources.get('prod').perClick += amount * miner.contrib1.amount;
  resources.get('prod').perSecond += amount * miner.contrib2.amount;
  u.elt('.r-prod-pc').textContent = resources.get('prod').perClick.toFixed(1);
  u.elt('.r-prod-ps').textContent = resources.get('prod').perSecond.toFixed(1);