blackjack.decaf

decaf.jar 是将类java的decaf语言编译成tac码(Three address code

class rndModule {

    int seed;

    void Init(int seedVal) {
        seed = seedVal;
    }

    int Random() {
        seed = (15625 * (seed % 10000) + 22221) % 65536;
        return seed;
    }

    int RndInt(int max) {
        return (Random() % max);
    }
}

class Deck {

    int current;
    int[] cards;
    class rndModule rnd;

    void Init(class rndModule rnd) {
        cards = new int[52];
        this.rnd = rnd;
    }

    void Shuffle() {
        for (current = 1; current <= 52; current = current + 1) {
            cards[current-1] = current % 13;
        }
        current = current - 1;
        while (current > 0) {
            int r;
            int temp;
            r = rnd.RndInt(current);
            current = current - 1;
            temp = cards[current];
            cards[current] = cards[r];
            cards[r] = temp;
        }
    }

    int GetCard() {
        int result;
        if (current >= 52)
            return 0;
        result = cards[current];
        current = current + 1;
        return result;
    }
}

class BJDeck {

    class Deck[] decks;
    int numdealt;
    class rndModule rnd;

    void Init(class rndModule rnd) {
        int i;
        decks = new class Deck[8];
        for (i = 0; i < 8; i = i + 1) {
            decks[i] = new Deck();
            decks[i].Init(rnd);
        }
        this.rnd = rnd;
    }

    int DealCard() {
        int c;
        c = 0;
        if (numdealt >= 8*52) return 11;
        while (c == 0) {
          int d;
          d = rnd.RndInt(8);
          c = decks[d].GetCard();
        }
        if (c > 10)
            c = 10;
        else if (c == 1)
            c = 11;
        numdealt = numdealt + 1;
        return c;
    }

    void Shuffle() {
        int i;

        Print("Shuffling...");
        for (i = 0; i < 8; i = i + 1)
            decks[i].Shuffle();

        numdealt = 0;
        Print("done.\n");
    }

    int NumCardsRemaining()
    {
        return 8*52 - numdealt;
    }
}

class Player {
    int total;
    int aces;
    int numcards;
    int bet;
    int money;
    string name;

    void Init(int num) {
        money = 1000;
        Print("What is the name of player #", num, "? ");
        name = ReadLine();
    }

    void Hit(class BJDeck deck) {
        int card;
        card = deck.DealCard();
        Print(name, " was dealt a ", card, ".\n");
        total = total + card;
        numcards = numcards + 1;
        if (card == 11)
            aces = aces + 1;
        while ((total > 21) && (aces > 0)) {
            total = total - 10;
            aces = aces - 1;
        }
    }

    bool DoubleDown(class BJDeck deck) {
        int result;
        if ((total != 10) && (total != 11))
            return false;
        if (GetYesOrNo("Would you like to double down?")) {
            bet = bet * 2;
            Hit(deck);
            Print(name, ", your total is ", total, ".\n");
            return true;
        } else 
            return false;
    }

    void TakeTurn(class BJDeck deck) {
        bool stillGoing;

        Print("\n", name, "'s turn.\n");
        total = 0;
        aces = 0;
        numcards = 0;
        Hit(deck);
        Hit(deck);
        if (!DoubleDown(deck)) {
            stillGoing = true;
            while (total <= 21 && stillGoing) {
                Print(name, ", your total is ", total, ".\n");
                stillGoing = GetYesOrNo("Would you like a hit?");
                if (stillGoing)
                    Hit(deck);
            }
        }
        if (total > 21)
            Print(name, " busts with the big ", total, "!\n");
        else
            Print(name, " stays at ", total, ".\n");
    }

    bool HasMoney() {
        return money > 0;
    }

    void PrintMoney() {
        Print(name, ", you have $", money, ".\n");
    }

    void PlaceBet() {
        bet = 0;
        PrintMoney();
        while ((bet <= 0) || (bet > money)) {
            Print("How much would you like to bet? ");
            bet = ReadInteger();
        }
    }

    int GetTotal() {
        return total;
    }

    void Resolve(int dealer) {
        int win;
        int lose;
        win = 0;
        lose = 0;
        if ((total == 21) && (numcards == 2))
            win = 2;
        else if (total > 21)
            lose = 1;
        else if (dealer > 21)
            win = 1;
        else if (total > dealer)
            win = 1;
        else if (dealer > total)
            lose = 1;
        if (win >= 1)
            Print(name, ", you won $", bet, ".\n");
        else if (lose >= 1)
            Print(name, ", you lost $", bet, ".\n");
        else
            Print(name, ", you push!\n");
        win = win * bet;
        lose = lose * bet;
        money = money + win - lose;
    }
    bool GetYesOrNo(string prompt) {
        Print(prompt, " (0=No/1=Yes) ");
        return ReadInteger() != 0;
    }
}

class Dealer extends Player {

    void Init(int id) {
        string s;
        total = 0;
        aces = 0;
        numcards = 0;
        s = "Dealer";   //jdz need to examine why two steps are needed
        name = s;
    }

    void TakeTurn(class BJDeck deck) {
        Print("\n", name, "'s turn.\n");
        while (total <= 16) {
            Hit(deck);
        }
        if (total > 21)
            Print(name, " busts with the big ", total, "!\n");
        else
            Print(name, " stays at ", total, ".\n");
    }
}



class House {
    class Player[] players;
    class Dealer dealer;
    class BJDeck deck;

    void SetupGame() {
        Print("\nWelcome to CS143 BlackJack!\n");
        Print("---------------------------\n");
        class rndModule rnd;
        rnd = new rndModule();
        Print("Please enter a random number seed: ");
        rnd.Init(ReadInteger());
 
        deck = new BJDeck();
        dealer = new Dealer();
        deck.Init(rnd);
        deck.Shuffle();
    }

    void SetupPlayers() {
        int i;
        int numPlayers;
        Print("How many players do we have today? ");
        numPlayers = ReadInteger();
        players = new class Player[numPlayers];
        for (i = 0; i < players.length(); i = i + 1) {
            players[i] = new Player();
            players[i].Init(i+1);
        }
    }

    void TakeAllBets() {
        int i;
        Print("\nFirst, let's take bets.\n");
        for (i = 0; i < players.length(); i = i + 1)
            if (players[i].HasMoney())
                players[i].PlaceBet();
    }

    void TakeAllTurns() {
        int i;
        for (i = 0; i < players.length(); i = i + 1)
            if (players[i].HasMoney())
                players[i].TakeTurn(deck);
    }

    void ResolveAllPlayers() {
        int i;

        Print("\nTime to resolve bets.\n");
        for (i = 0; i < players.length(); i = i + 1)
            if (players[i].HasMoney())
                players[i].Resolve(dealer.GetTotal());
    }

    void PrintAllMoney() {
        int i;

        for (i = 0; i < players.length(); i = i + 1)
            players[i].PrintMoney();

    }

    void PlayOneGame() {
        if (deck.NumCardsRemaining() < 26)
            deck.Shuffle();
        TakeAllBets();
        Print("\nDealer starts. ");
        dealer.Init(0);
        dealer.Hit(deck);
        TakeAllTurns();
        dealer.TakeTurn(deck);
        ResolveAllPlayers();
    }

}

class Main {
    static void main() {
        bool keepPlaying;
        keepPlaying = true;
        class House house;
        house = new House();
        house.SetupGame();
        house.SetupPlayers();
        while (keepPlaying) {
            house.PlayOneGame();
            keepPlaying = GetYesOrNo("\nDo you want to play another hand?");
        }
        house.PrintAllMoney();
        Print("Thank you for playing...come again soon.\n");
        Print("\nCS143 BlackJack Copyright (c) 1999 by Peter Mork.\n");
        Print("(2001 mods by jdz)\n");
    }
    
    static bool GetYesOrNo(string prompt) {
        Print(prompt, " (0=No/1=Yes) ");
        return ReadInteger() != 0;
    }
}