Schack/src/schack/Piece.java

package schack;

import java.awt.Component;
import java.awt.Graphics2D;
import java.awt.Point;
import java.awt.image.BufferedImage;
import java.awt.image.ImageObserver;
import java.util.ArrayList;
import java.util.LinkedHashSet;

public abstract class Piece extends Component {

    public Point position;
    public boolean white;
    public boolean castled = false;
    protected BufferedImage icon;

    public Piece(boolean white, Point startingPosition) {
        this.white = white;
        this.position = startingPosition;
    }

    public abstract LinkedHashSet<Point> validMoves(ArrayList<Piece> pieces);

    public void draw(Graphics2D g2) {

        g2.drawImage(
                icon, 
                position.x * Board.SIZE_OF_TILE, 
                position.y * Board.SIZE_OF_TILE, 
                (ImageObserver) this
        );
    }

}