start method

Implementation

Tween start([int? time, bool overrideStartingValues = false]) {
  time ??= now();
  if (this._isPlaying) {
      return this;
  }
  // eslint-disable-next-line
  this._group.add(this);
  this._repeat = this._initialRepeat;
  if (this._reversed) {
    // If we were reversed (f.e. using the yoyo feature) then we need to
    // flip the tween direction back to forward.
    this._reversed = false;
    for (var property in this._valuesStartRepeat.keys) {
      this._swapEndStartRepeatValues(property);
      this._valuesStart[property] = this._valuesStartRepeat[property];
    }
  }
  this._isPlaying = true;
  this._isPaused = false;
  this._onStartCallbackFired = false;
  this._onEveryStartCallbackFired = false;
  this._isChainStopped = false;
  this._startTime = time + this._delayTime;
  if (!this._propertiesAreSetUp || overrideStartingValues) {
    this._propertiesAreSetUp = true;
    // If dynamic is not enabled, clone the end values instead of using the passed-in end values.
    if (!this._isDynamic) {
      var tmp = {};
      for (var prop in this._valuesEnd.keys){
        tmp[prop] = this._valuesEnd[prop];
      }
      this._valuesEnd = tmp;
    }
    this._setupProperties(this._object, this._valuesStart, this._valuesEnd, this._valuesStartRepeat, overrideStartingValues);
  }
  return this;
}