Java version of acey ducey

Java version of the game acey ducey from the basic computer games book

01 Acey Ducey/java/src/aceyducey/AceyDucey.java

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+package aceyducey;
+
+import java.util.Scanner;
+
+/**
+ * Game of AceyDucey
+ *
+ * Based on the Basic game of AceyDucey here
+ * https://github.com/coding-horror/basic-computer-games/blob/main/01%20Acey%20Ducey/aceyducey.bas
+ * Note:  The idea was to create a version of this 1970's Basic game in Java, without introducing
+ *        new features - no additional text, error checking, etc has been added.
+ *
+ */
+public class AceyDucey {
+
+    // Current amount of players cash
+    private int playerAmount;
+
+    // First drawn dealer card
+    private Card firstCard;
+
+    // Second drawn dealer card
+    private Card secondCard;
+
+    // Players drawn card
+    private Card playersCard;
+
+    // User to display game intro/instructions
+    private boolean firstTimePlaying = true;
+
+    // game state to determine if game over
+    private boolean gameOver = false;
+
+    // Used for keyboard input
+    private Scanner kbScanner;
+
+    // Constant value for cards from a deck - 2 lowest, 14 (Ace) highest
+    public static final int LOW_CARD_RANGE =2;
+    public static final int HIGH_CARD_RANGE = 14;
+
+    public AceyDucey() {
+        // Initialise players cash
+        playerAmount = 100;
+
+        // Initialise kb scanner
+        kbScanner = new Scanner(System.in);
+    }
+
+    // Play again method - public method called from class invoking game
+    // If player enters YES then the game can be played again (true returned)
+    // otherwise not (false)
+    public boolean playAgain() {
+        System.out.println();
+        System.out.println("SORRY, FRIEND, BUT YOU BLEW YOUR WAD.");
+        System.out.println();
+        System.out.println();
+        System.out.print("TRY AGAIN (YES OR NO) ");
+        String playAgain = kbScanner.next().toUpperCase();
+        System.out.println();
+        System.out.println();
+        if(playAgain.equals("YES")) {
+            return true;
+        } else {
+            System.out.println("O.K., HOPE YOU HAD FUN!");
+            return false;
+        }
+    }
+
+    // game loop method
+
+    public void play() {
+
+        // Keep playing hands until player runs out of cash
+        // which sets gameover to true
+        do {
+            if(firstTimePlaying) {
+                intro();
+                firstTimePlaying = false;
+            }
+            displayBalance();
+            drawCards();
+            displayCards();
+            int betAmount = getBet();
+            this.playersCard = randomCard();
+            displayPlayerCard();
+            if(playerWon()) {
+                System.out.println("YOU WIN!!");
+                this.playerAmount += betAmount;
+            } else {
+                System.out.println("SORRY, YOU LOSE");
+                this.playerAmount -= betAmount;
+                // Player run out of money?
+                if(this.playerAmount <=0) {
+                    this.gameOver = true;
+                }
+            }
+
+        } while (!gameOver); // Keep playing until player runs out of cash
+    }
+
+    // Method to determine if player won (true returned) or lost (false returned)
+    // to win a players card has to be in the range of the first and second dealer
+    // drawn cards inclusive of first and second cards.
+    private boolean playerWon() {
+        if((this.playersCard.getValue() >= this.firstCard.getValue())
+                && this.playersCard.getValue() <= this.secondCard.getValue()) {
+            // winner
+            return true;
+        }
+
+        return false;
+
+    }
+
+    private void displayPlayerCard() {
+        System.out.println(this.playersCard.getName());
+    }
+
+    // Get the players bet, and return the amount
+    // 0 is considered a valid bet, but better more than the player has available is not
+    // method will loop until a valid bet is entered.
+    private int getBet() {
+        boolean validBet = false;
+        int amount = 0;
+        do {
+            System.out.print("WHAT IS YOUR BET ");
+            amount = kbScanner.nextInt();
+            if(amount == 0) {
+                System.out.println("CHICKEN!!");
+                validBet = true;
+            } else if(amount > this.playerAmount) {
+                System.out.println("SORRY, MY FRIEND, BUT YOU BET TOO MUCH.");
+                System.out.println("YOU HAVE ONLY " + this.playerAmount + " DOLLARS TO BET.");
+            } else {
+                validBet = true;
+            }
+        } while (!validBet);
+
+        return amount;
+    }
+
+    private void displayBalance() {
+        System.out.println("YOU NOW HAVE " + this.playerAmount + " DOLLARS.");
+    }
+
+    private void displayCards() {
+        System.out.println("HERE ARE YOUR NEXT TWO CARDS: ");
+        System.out.println(this.firstCard.getName());
+        System.out.println(this.secondCard.getName());
+    }
+
+    // Draw two dealer cards, and save them for later use.
+    // ensure that the first card is a smaller value card than the second one
+    private void drawCards() {
+
+        do {
+            this.firstCard = randomCard();
+            this.secondCard = randomCard();
+        } while(this.firstCard.getValue() >= this.secondCard.getValue());
+    }
+
+    // Creates a random card
+    private Card randomCard() {
+        return new Card((int) (Math.random()
+                * (HIGH_CARD_RANGE - LOW_CARD_RANGE + 1) + LOW_CARD_RANGE));
+    }
+
+    public void intro() {
+        System.out.println("ACEY DUCEY CARD GAME");
+        System.out.println("CREATIVE COMPUTING  MORRISTOWN, NEW JERSEY");
+        System.out.println();
+        System.out.println();
+        System.out.println("ACEY-DUCEY IS PLAYED IN THE FOLLOWING MANNER");
+        System.out.println("THE DEALER (COMPUTER) DEALS TWO CARDS FACE UP");
+        System.out.println("YOU HAVE AN OPTION TO BET OR NOT BET DEPENDING");
+        System.out.println("ON WHETHER OR NOT YOU FEEL THE CARD WILL HAVE");
+        System.out.println("A VALUE BETWEEN THE FIRST TWO.");
+        System.out.println("IF YOU DO NOT WANT TO BET, INPUT A 0");
+    }
+}

01 Acey Ducey/java/src/aceyducey/Card.java

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+package aceyducey;
+
+/**
+ * A card from a deck - the value is between 2-14 to cover
+ * cards with a face value of 2-9 and then a Jack, Queen, King, and Ace
+ */
+public class Card {
+    private int value;
+    private String name;
+
+    Card(int value) {
+        init(value);
+    }
+
+    private void init(int value) {
+        this.value = value;
+        if(value <11) {
+            this.name = String.valueOf(value);
+        } else {
+            switch (value) {
+                case 11:
+                    this.name = "Jack";
+                    break;
+                case 12:
+                    this.name = "Queen";
+                    break;
+                case 13:
+                    this.name = "King";
+                    break;
+                case 14:
+                    this.name = "Ace";
+                    break;
+
+                default:
+                    this.name = "Unknown";
+            }
+        }
+    }
+
+    public int getValue() {
+        return value;
+    }
+
+    public String getName() {
+        return name;
+    }
+}

01 Acey Ducey/java/src/aceyducey/Game.java

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+package aceyducey;
+
+/**
+ * This class is used to invoke the game.
+ *
+ */
+public class Game {
+
+    private static AceyDucey game;
+
+    public static void main(String[] args) {
+
+        boolean keepPlaying = true;
+
+        // Keep playing game until infinity or the player loses
+        do {
+            game = new AceyDucey();
+            game.play();
+            System.out.println();
+            System.out.println();
+            System.out.println();
+            keepPlaying = game.playAgain();
+        } while (keepPlaying);
+    }
+}