wavepot reverse

gistfile1.txt

var lastLog = 0;

function logMessage(m) {
  var now = Date.now();
  var timeSinceLast = now - lastLog;
  if (timeSinceLast < 500) {
    return false;
  }
  console.log(m);
  lastLog = now;
}

var tLast = 0;
var tAdjustLast = 0;

function clockDiff(_t) {
  if (_t === 0) {
    tLast = 0;  
  }
  var diff = _t - tLast;
  tLast = _t;
  return diff;
}

function clockAdjust(_t) {
  var diff = clockDiff(_t);
  var reverse = false;
  if (_t % 20 < 6) {
    reverse = true;
  }
  logMessage(reverse);
  var tAdjust;
  if (reverse) {
    tAdjust = tAdjustLast - diff;  
  } else {
    tAdjust = tAdjustLast + diff;
  }
  if (tAdjust < 0) {
    return 0;
  }
  tAdjustLast = tAdjust;
  return tAdjustLast;
}

function clock(_t){
  t = clockAdjust(_t);
  t *= bpm / 120;
  tt = tau * t;
}