start method
Implementation
DoTween start([time]) {
DoTween.setup();
DoTween.add(this);
_startTime = time ?? DateTime.now().millisecondsSinceEpoch;
_startTime += _delayTime;
for (var property in _valuesEnd.keys) {
if (_object[property] == null) {
continue;
}
_valuesStart[property] = _object[property];
}
return this;
}