package ballWorlds;

import java.awt.geom.Point2D;

/**
 * A Selectable is an object that can be selected by determining its distance
 * from a given point. It is typically used to select the Ball in a World that
 * is closest to the mouse point.
 * 
 * @author David Mutchler, Salman Azhar, Curt Clifton and others, January 2005.
 *         Modified September 2008, September 2009.
 */
public interface Selectable {
	/**
	 * Returns the distance that this Selectable object is from the given
	 * Point2D.
	 * 
	 * @param point
	 *            the Point2D from which the distance is desired.
	 * @return the distance that this Selectable object is from the given
	 *         Point2D.
	 */
	public double distanceFrom(Point2D point);
}