/**
 * Copyright (C) 2022 by Martin Robillard. See https://codesample.info/about.html
 */
package e2.chapter9;

/**
 * Represents an entity from which it is possible to obtain cards.
 */
public interface CardSource {
	/**
	 * Returns a card from the source.
	 *
	 * @return The next available card.
	 * @pre !isEmpty()
	 */
	Card draw();
	
	/**
	 * @return True if there is no card in the source.
	 */
	boolean isEmpty();
}