game.java

玩儿地雷游戏 猜字母 连续点击的两个字母相同则翻开 不同则全都盖上重新来 直到把所有的字母打开

import java.util.Scanner;
import java.lang.String;
/**
 * The Game class represents a single game of Memory.
 * 
 * @author Terri Paik
 * @author Zhu Jing
 * StudentID:0631118	
 * Project: 3
 * Date:2009/04/01
 */
public class Game {

    private Grid grid;
    private int numGuesses = 0;
    private int delaySeconds = 3;
    private static Scanner sc = new Scanner(System.in);


    /**
     * Creates a new game instance.
     */
    public Game() {
        grid = new Grid();
    }


    /**
     * Creates a new game instance with configuration parameters 
     * read from a file.
     *
     * @param configFile File containing the configuration parameters
     */
    public Game(String configFile) {
        Config cfg = new Config(configFile);
        String delay = cfg.getProperty("game.delay");
        if (delay != null ) {
            try {
                delaySeconds = Integer.parseInt(delay);
            } catch (NumberFormatException e) {
                System.err.println("Invalid value for game.delay. Using default.");
            }
        }
        grid = new Grid(cfg);
    }


    private void printWelcome() {
        System.out.println("Welcome to Memory!");
    }


    private void printCongrats() {
        System.out.println("CONGRATULATIONS! YOU WON!!!");
        System.out.println("You finished the game in " + numGuesses
                + " guesses.");
    }


    /**
     * Asks the user if they want to keep playing and returns true if they do.
     * 
     * @return true if the user answered "y" or "Y" to the question, 
     * false if they answered "n" or "N". 
     */
    public boolean keepPlaying() {
        /* TO DO!
         * After the user answered the question yes or no,pick the answer "Y/y"or"N/n",
		 * if it is "Y/y",keep playing,otherwise,stop playing;
		 *
         * You could use this statement for the prompt:
         * 
         * System.out.print("Play another game? (y/n) ");
         * 
         * Don't create a new Scanner. Use the Scanner sc object that 
         * has already been initialized as a field in this class. 
         */
		 String s;
		 do{
			 System.out.print("Play another game?(y/n) ");
		     s=sc.nextLine();
		 }while(!s.equalsIgnoreCase("y") && !s.equalsIgnoreCase("n"));
		 //char k=s.charAt(0);
		 /*if(!s.equalsIngnoreCase('y') && !s.equalsIngnoreCase('n'))
		{
			  System.out.print("Play another game?(y/n) ");
		      s=sc.nextLine();
		 }*/
         return s.equalsIgnoreCase("y");
		 
	}


    /**
     * Prompts the user to enter a grid location for the card they wish 
     * to select, then returns the corresponding Card object. 
     * If the grid location is invalid or the card is already facing up, 
     * reports an error and prompts again (loops until valid card is chosen).
     *  
     * @param cardNum Number of this card (for display purposes only)
     * @return the Card selected by the user.
     */
    private Card chooseNextCard(int cardNum) {
        /* TO DO!
         * Give an interger i to be a label to decide whether the user has to choose another card again;
		 * When i is 0,get the cardNum and decide whether the card is valid based on its current state;
         * You could use this statement for the prompt:
         *
         * System.out.print("Card #" + cardNum + ": ");
         *
         * Read in the user's input and get the card using grid.getCard(String)
         * If the card is null, print an error.
         * If the card is facing up, print an error.
         * Repeat until the user chooses a valid card.
         *
         * Don't create a new Scanner. Use the Scanner sc object that 
         * has already been initialized as a field in this class. 
         */
         Card card;
		 int i=0; 
         do{
			 System.out.print("Card #" + cardNum + ": ");
			 String str=sc.nextLine();
			 card=grid.getCard(str);

			 if(card==null)
			 {
				 System.out.print("Card"+cardNum+"is invalide!Please choose another one!");
			 }
			 else if(card.isFacingUp())
			 {
				 System.out.print("Card"+cardNum+"is facing up!Please choose another one!");
			 }
			 else
			 {
				 i=1;
    		 }
		 }while(i==0);
		return card; 
    }


    /**
     * Plays one complete game of Memory.
     */
    public void play() {
        printWelcome();
		grid.print();

        /* TO DO!
         * 
         * Fill in the main game loop here. Repeat until grid.isSolved()...
         * 1. Print the grid.
         * 2. Ask the player to choose card #1 using chooseNextCard(). 
         * 3. Set card #1 face up and print the grid.
         * 4. Ask the player to choose card #2.
         * 5. Set card #2 face up and print the grid.
         * 6. If the cards do not match, pause for <delaySeconds> seconds, 
         * then set the cards face down and print the grid again. 
         */
        do{
			Card card1=chooseNextCard(1);
			card1.setFaceUp();
			grid.print();
			Card card2=chooseNextCard(2);
			card2.setFaceUp();
			grid.print();
			numGuesses++;
			if(!(card1.matches(card2))){
				try{
					for(int i=0;i<delaySeconds;i++)
					{
						System.out.print(".");
						Thread.sleep(3000);
					}
				}
				catch(Exception localException)
				{
				}
				card1.setFaceDown();
				card2.setFaceDown();
				for(int i=0;i<30;++i)
				{
					System.out.println();

				}
				grid.print();
				
			}
		}while(!(grid.isSolved()));
        printCongrats();
    }
}