public void onPenDown(Point p){
pointA=p;
}
@Override
public MainCreation onPenUp(Point p){
MainCreation c= null;
updatePenPosition(p);
if(pointA!=null&&pointB!=null){
if(pointA.delta(pointB).getSquare()<MIN_LENGTH_SQUARE){
c=new FragmentalLine(getCreationRequiredPower(), true, pointA, pointB, ASBOTXConfigs.Color.DARK_GRAY);
}else{