OOP-Projects-Java

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Game.java (2559B)

      1 package lucky_card;
      2 
      3 import java.util.ArrayList;
      4 import java.util.Scanner;
      5 
      6 public class Game {
      7 	private Deck deck;
      8 	private boolean playing;
      9 	private Scanner inputHandler;
     10 	
     11 	
     12 	//constructor
     13 	public Game() {
     14 		deck = new Deck();
     15 		playing = true;
     16 		inputHandler = new Scanner(System.in);
     17 	}
     18 
     19 	//start the game
     20 	public void play() {
     21 		//greet user
     22 		System.out.println("Welcome to Lucky Card game by William Lindholm\n");
     23 		
     24 		//main game loop
     25 		while (playing) {
     26 			
     27 			//display starting round information
     28 			System.out.println("\n------- Playing a game round");
     29 			
     30 			//draw three cards from top of deck
     31 			ArrayList<Card> drawnCards = new ArrayList<Card>(); 
     32 			for (int i = 0; i < 3; i++) {
     33 				drawnCards.add(deck.pop());
     34 			}
     35 			
     36 			//re-add the drawn cards
     37 			for (Card card : drawnCards) {
     38 				deck.addToBottom(card);
     39 			}
     40 			
     41 			//display cards and determine if user won.
     42 			displayCards(drawnCards);
     43 			
     44 			//check if user has won and display result
     45 			displayResult(isWin(drawnCards));
     46 			
     47 			//ask if user wants to play again
     48 			System.out.print("\n=========> Press ENTER to play again or \"q\" to quit: ");
     49 			
     50 			//handle the user input, if user presses q exit game
     51 			handleInput();
     52 		}
     53 	}
     54 	
     55 	//Handles the user input
     56 	private void handleInput() {
     57 		//handle input
     58 		String userinput = inputHandler.nextLine();
     59 		System.out.println(userinput);
     60 		if (userinput.equals("q")) {
     61 			System.out.println("\nThank you for playing and welcome back!");
     62 			playing = false;
     63 		}
     64 	}
     65 	
     66 	//display cards and determine if user won
     67 	private void displayCards(ArrayList<Card> cards) {
     68 		//display cards 
     69 		for (int i = 0; i < cards.size(); i++) {
     70 			Card card = cards.get(i); //get current card
     71 			
     72 			//print out cards suit, rank and value 
     73 			System.out.println("Card " + i + ": " + card.getSuit() 
     74 			+ " -> " + card.getRank() + " Value = " + card.getValue());
     75 		}
     76 	}
     77 	
     78 	private void displayResult(boolean hasWon) {
     79 		//display win
     80 		if (hasWon) {
     81 			System.out.println("You win!");
     82 		} else {
     83 			System.out.println("You lose!");
     84 		}
     85 	}
     86 	
     87 	private boolean isWin(ArrayList<Card> cards) {
     88 		//grab values from drawnCards
     89 		int[] cardValues = new int[cards.size()];
     90 		for (int i = 0; i < cards.size(); i++) {
     91 			cardValues[i] = cards.get(i).getValue();
     92 		}
     93 		
     94 		//compare values from drawnCards
     95 		if ((cardValues[cardValues.length-1] > cardValues[0] 
     96 			&& cardValues[cardValues.length-1] < cardValues[1])
     97 			|| (cardValues[cardValues.length-1] < cardValues[0] 
     98 			&& cardValues[cardValues.length-1] > cardValues[1])){
     99 			return true;
    100 		}
    101 		return false;
    102 	}
    103 }