Stone.java

import java.awt.*;
import java.awt.geom.Ellipse2D;
import java.awt.geom.Point2D;
import javax.swing.*;

/**
 * The class that represents a component that draws a stone shape.
 * @author: Hung Phan
 * @author: Lien Cao
 * @author: Wendy Ta
 * @version: 1.0 11/28/25
 */
public class Stone extends JComponent{
    private final static int SIZE = 10;
    private double x, y; //x and y position of stone
    private Ellipse2D stone;

    /**
     * Constructs a stone
     * @param x the left of bounding rectangle
     * @param y the top of bounding rectangle
     */
    public Stone(double x, double y){
        this.x = x;
        this.y = y;
        this.stone = new Ellipse2D.Double(x, y, SIZE, SIZE);
    }

    /**
     * Draws the stone
     * @param g2 the graphics context
     */
    public void drawStone(Graphics2D g2) { //draw the stones
        g2.setColor(Color.BLACK);
        g2.fill(stone);
    }  
    
    
    /**
     * This method allows the shape to move.
     * @param dx the changes from the left of the bounding rectangle
     * @param dy the changes from the top of the bounding rectangle
     */
    public void moveStone(int dx, int dy) { 
        x += dx;
        y += dy;
    }

    /**
     * Checks if the mouse is clicked on the specific area.
     * @param p the mouse point
     * @return true if mouse is clicked on the correct position, false otherwise
     */
    public boolean contains(Point2D p) {
        return x <= p.getX() && p.getX() <= x + SIZE && y <= p.getY() && p.getY() <= y + SIZE;
    }

}