package lectures.inheritance.virtual_abstract_factory_methods;
import util.annotations.WebDocuments;

import lectures.arrays.collections_kinds.extra.PointHistory;
import lectures.graphics.Point;

@WebDocuments({"Lectures/InheritanceVirtualAbstractFactoryMethods.pptx", "Lectures/InheritanceVirtualAbstractFactoryMethods.pdf", "Videos/InheritanceVirtualAbstractFactoryMethods.avi"})
public abstract class AnAbstractPointHistory implements PointHistory{
    public final int MAX_SIZE = 50;
    protected Point[] contents = new Point[MAX_SIZE];
    protected int size = 0;
    public int size() {
        return size;
    }   
    public Point elementAt (int index) {
        return contents[index];
    }
    protected boolean isFull() {
        return size == MAX_SIZE;

    }
    protected abstract Point createPoint(int x, int y);
    public void addElement(int x, int y) {
        if (isFull())
            System.out.println("Adding item to a full history");
        else {
            Point p = createPoint(x, y);
            contents[size] = p;
            size++;
        }
    }    
}