AbstractShape.java

package shape;

import javafx.scene.canvas.GraphicsContext;
import java.awt.geom.Point2D;
import java.util.List;

public abstract class AbstractShape implements Shape{
    private List<Point2D> points ;




    public void addPoints(Point2D... pointsToAdd) {
        for (Point2D point : pointsToAdd) {
            points.add(point);
        }
    }


    public  int pointsCount(){return points.size();}


    public Point2D point(int index){
        Point2D result = null;
        for(int i =0;i<points.size();i++){
            if (i == index) {
                result = points.get(i);
                break;
            }
        }
        return result;
    }



    public abstract void draw(GraphicsContext graphicsContext);

}