solitare.java

一些JAVA的小程序

/*
	Simple Solitare Card Game in Java
	Written by Tim Budd, Oregon State University, 1996
*/

import java.awt.*;
import java.util.Random;
import java.awt.event.*;
import java.util.Enumeration;

class SuitPile extends CardPile {

	SuitPile (int x, int y) { super(x, y); }

	public boolean canTake (Card aCard) {
		if (isEmpty())
			return aCard.rank() == 0;
		Card topCard = top();
		return (aCard.suit() == topCard.suit()) &&
			(aCard.rank() == 1 + topCard.rank());
		}
}

class DeckPile extends CardPile {

	DeckPile (int x, int y) {
			// first initialize parent
		super(x, y);
			// then create the new deck
			// first put them into a local pile
		for (int i = 0; i < 4; i++)
			for (int j = 0; j <= 12; j++) 
				addCard(new Card(i, j));

			// then shuffle the cards
		Random generator = new Random();
		for (int i = 0; i < 52; i++) {
			int j = Math.abs(generator.nextInt() % 52);
				// swap the two card values
			Object temp = thePile.elementAt(i);
			thePile.setElementAt(thePile.elementAt(j), i);
			thePile.setElementAt(temp, j);
			}
		}

	public void select(int tx, int ty) {
		if (isEmpty()) 
			return;
		Solitare.discardPile.addCard(pop());
		}
}

class DiscardPile extends CardPile {
	
	DiscardPile (int x, int y) { super (x, y); }

	public void addCard (Card aCard) {
		if (! aCard.faceUp())
			aCard.flip();
		super.addCard(aCard);
		}

	public void select (int tx, int ty) {
		if (isEmpty())
			return;
		Card topCard = pop();
		for (int i = 0; i < 4; i++)
			if (Solitare.suitPile[i].canTake(topCard)) {
				Solitare.suitPile[i].addCard(topCard);
				return;
				}
		for (int i = 0; i < 7; i++)
			if (Solitare.tableau[i].canTake(topCard)) {
				Solitare.tableau[i].addCard(topCard);
				return;
				}
		// nobody can use it, put it back on our list
		addCard(topCard);
		}
}


class TablePile extends CardPile {

	TablePile (int x, int y, int c) {
			// initialize the parent class
		super(x, y);
			// then initialize our pile of cards
		for (int i = 0; i < c; i++) {
			addCard(Solitare.deckPile.pop());
			}
			// flip topmost card face up
		top().flip();
		}

	public boolean canTake (Card aCard) {
		if (isEmpty())
			return aCard.rank() == 12;
		Card topCard = top();
		return (aCard.color() != topCard.color()) &&
			(aCard.rank() == topCard.rank() - 1);
		}

	public boolean includes (int tx, int ty) {
			// don't test bottom of card
		return x <= tx && tx <= x + Card.width &&
			y <= ty;
		}

	public void select (int tx, int ty) {
		if (isEmpty())
			return;

			// if face down, then flip
		Card topCard = top();
		if (! topCard.faceUp()) {
			topCard.flip();
			return;
			}

			// else see if any suit pile can take card
		topCard = pop();
		for (int i = 0; i < 4; i++)
			if (Solitare.suitPile[i].canTake(topCard)) {
				Solitare.suitPile[i].addCard(topCard);
				return;
				}
			// else see if any other table pile can take card
		for (int i = 0; i < 7; i++)
			if (Solitare.tableau[i].canTake(topCard)) {
				Solitare.tableau[i].addCard(topCard);
				return;
				}
			// else put it back on our pile
		addCard(topCard);
		}

	public void display (Graphics g) {
		int localy = y;
		for (Enumeration e = thePile.elements(); e.hasMoreElements(); ) {
			Card aCard = (Card) e.nextElement();
			aCard.draw (g, x, localy);
			localy += 35;
			}
		}
}

public class Solitare {
	static public DeckPile deckPile;
	static public DiscardPile discardPile;
	static public TablePile tableau [ ];
	static public SuitPile suitPile [ ];
	static public CardPile allPiles [ ];
	private Frame window;

	static public void main (String [ ] args) {
		Solitare world = new Solitare();
		}

	public Solitare () {
		window = new SolitareFrame();
		init();
		window.show();
		}

	public void init () {
			// first allocate the arrays
		allPiles = new CardPile[13];
		suitPile = new SuitPile[4];
		tableau = new TablePile[7];
			// then fill them in
		allPiles[0] = deckPile = new DeckPile(335, 30);
		allPiles[1] = discardPile = new DiscardPile(268, 30);
		for (int i = 0; i < 4; i++)
			allPiles[2+i] = suitPile[i] =
				new SuitPile(15 + (Card.width+10) * i, 30);
		for (int i = 0; i < 7; i++)
			allPiles[6+i] = tableau[i] =
				new TablePile(15 + (Card.width+5) * i, Card.height + 35, i+1); 
		}

	private class SolitareFrame extends Frame {

		private class RestartButtonListener implements ActionListener {
			public void actionPerformed (ActionEvent e) {
				init();
				window.repaint();
				}
			}

		private class MouseKeeper extends MouseAdapter {

			public void mousePressed (MouseEvent e) { 
				int x = e.getX();
				int y = e.getY();
				for (int i = 0; i < 13; i++)
					if (allPiles[i].includes(x, y)) {
						allPiles[i].select(x, y);
						repaint();
						}
				}
			}


		public SolitareFrame() {
			setSize(600, 500);
			setTitle("Solitaire Game");
			addMouseListener (new MouseKeeper());
			Button restartButton = new Button("New Game");
			restartButton.addActionListener(new RestartButtonListener());
			add("South", restartButton);
			}

		public void paint(Graphics g) {
			for (int i = 0; i < 13; i++) 
				allPiles[i].display(g);
			}
		}
}