sss

function mine()
{
  max_rock = 8;
  for(i = max_rock; i > 0; --i)
  {
    if(rockData[i].depleted)
    {
      continue;
    }
    else
    {
      if(currentRock != i)
      {
        mineRock(i, true)
      }
      break;
    }
  }
}

setInterval(mine, 50)